ferencd@0: /*
ferencd@0:     __ _____ _____ _____
ferencd@0:  __|  |   __|     |   | |  JSON for Modern C++
ferencd@0: |  |  |__   |  |  | | | |  version 3.7.0
ferencd@0: |_____|_____|_____|_|___|  https://github.com/nlohmann/json
ferencd@0: 
ferencd@0: Licensed under the MIT License <http://opensource.org/licenses/MIT>.
ferencd@0: SPDX-License-Identifier: MIT
ferencd@0: Copyright (c) 2013-2019 Niels Lohmann <http://nlohmann.me>.
ferencd@0: 
ferencd@0: Permission is hereby  granted, free of charge, to any  person obtaining a copy
ferencd@0: of this software and associated  documentation files (the "Software"), to deal
ferencd@0: in the Software  without restriction, including without  limitation the rights
ferencd@0: to  use, copy,  modify, merge,  publish, distribute,  sublicense, and/or  sell
ferencd@0: copies  of  the Software,  and  to  permit persons  to  whom  the Software  is
ferencd@0: furnished to do so, subject to the following conditions:
ferencd@0: 
ferencd@0: The above copyright notice and this permission notice shall be included in all
ferencd@0: copies or substantial portions of the Software.
ferencd@0: 
ferencd@0: THE SOFTWARE  IS PROVIDED "AS  IS", WITHOUT WARRANTY  OF ANY KIND,  EXPRESS OR
ferencd@0: IMPLIED,  INCLUDING BUT  NOT  LIMITED TO  THE  WARRANTIES OF  MERCHANTABILITY,
ferencd@0: FITNESS FOR  A PARTICULAR PURPOSE AND  NONINFRINGEMENT. IN NO EVENT  SHALL THE
ferencd@0: AUTHORS  OR COPYRIGHT  HOLDERS  BE  LIABLE FOR  ANY  CLAIM,  DAMAGES OR  OTHER
ferencd@0: LIABILITY, WHETHER IN AN ACTION OF  CONTRACT, TORT OR OTHERWISE, ARISING FROM,
ferencd@0: OUT OF OR IN CONNECTION WITH THE SOFTWARE  OR THE USE OR OTHER DEALINGS IN THE
ferencd@0: SOFTWARE.
ferencd@0: */
ferencd@0: 
ferencd@0: #ifndef INCLUDE_NLOHMANN_JSON_HPP_
ferencd@0: #define INCLUDE_NLOHMANN_JSON_HPP_
ferencd@0: 
ferencd@0: #define NLOHMANN_JSON_VERSION_MAJOR 3
ferencd@0: #define NLOHMANN_JSON_VERSION_MINOR 7
ferencd@0: #define NLOHMANN_JSON_VERSION_PATCH 0
ferencd@0: 
ferencd@0: #include <algorithm> // all_of, find, for_each
ferencd@0: #include <cassert> // assert
ferencd@0: #include <ciso646> // and, not, or
ferencd@0: #include <cstddef> // nullptr_t, ptrdiff_t, size_t
ferencd@0: #include <functional> // hash, less
ferencd@0: #include <initializer_list> // initializer_list
ferencd@0: #include <iosfwd> // istream, ostream
ferencd@0: #include <iterator> // random_access_iterator_tag
ferencd@0: #include <memory> // unique_ptr
ferencd@0: #include <numeric> // accumulate
ferencd@0: #include <string> // string, stoi, to_string
ferencd@0: #include <utility> // declval, forward, move, pair, swap
ferencd@0: #include <vector> // vector
ferencd@0: 
ferencd@0: // #include <nlohmann/adl_serializer.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <utility>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/conversions/from_json.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <algorithm> // transform
ferencd@0: #include <array> // array
ferencd@0: #include <ciso646> // and, not
ferencd@0: #include <forward_list> // forward_list
ferencd@0: #include <iterator> // inserter, front_inserter, end
ferencd@0: #include <map> // map
ferencd@0: #include <string> // string
ferencd@0: #include <tuple> // tuple, make_tuple
ferencd@0: #include <type_traits> // is_arithmetic, is_same, is_enum, underlying_type, is_convertible
ferencd@0: #include <unordered_map> // unordered_map
ferencd@0: #include <utility> // pair, declval
ferencd@0: #include <valarray> // valarray
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/exceptions.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <exception> // exception
ferencd@0: #include <stdexcept> // runtime_error
ferencd@0: #include <string> // to_string
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/input/position_t.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <cstddef> // size_t
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: /// struct to capture the start position of the current token
ferencd@0: struct position_t
ferencd@0: {
ferencd@0:     /// the total number of characters read
ferencd@0:     std::size_t chars_read_total = 0;
ferencd@0:     /// the number of characters read in the current line
ferencd@0:     std::size_t chars_read_current_line = 0;
ferencd@0:     /// the number of lines read
ferencd@0:     std::size_t lines_read = 0;
ferencd@0: 
ferencd@0:     /// conversion to size_t to preserve SAX interface
ferencd@0:     constexpr operator size_t() const
ferencd@0:     {
ferencd@0:         return chars_read_total;
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: } // namespace detail
ferencd@0: } // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/macro_scope.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <utility> // pair
ferencd@0: // #include <nlohmann/thirdparty/hedley/hedley.hpp>
ferencd@0: /* Hedley - https://nemequ.github.io/hedley
ferencd@0:  * Created by Evan Nemerson <evan@nemerson.com>
ferencd@0:  *
ferencd@0:  * To the extent possible under law, the author(s) have dedicated all
ferencd@0:  * copyright and related and neighboring rights to this software to
ferencd@0:  * the public domain worldwide. This software is distributed without
ferencd@0:  * any warranty.
ferencd@0:  *
ferencd@0:  * For details, see <http://creativecommons.org/publicdomain/zero/1.0/>.
ferencd@0:  * SPDX-License-Identifier: CC0-1.0
ferencd@0:  */
ferencd@0: 
ferencd@0: #if !defined(JSON_HEDLEY_VERSION) || (JSON_HEDLEY_VERSION < 9)
ferencd@0: #if defined(JSON_HEDLEY_VERSION)
ferencd@0:     #undef JSON_HEDLEY_VERSION
ferencd@0: #endif
ferencd@0: #define JSON_HEDLEY_VERSION 9
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_STRINGIFY_EX)
ferencd@0:     #undef JSON_HEDLEY_STRINGIFY_EX
ferencd@0: #endif
ferencd@0: #define JSON_HEDLEY_STRINGIFY_EX(x) #x
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_STRINGIFY)
ferencd@0:     #undef JSON_HEDLEY_STRINGIFY
ferencd@0: #endif
ferencd@0: #define JSON_HEDLEY_STRINGIFY(x) JSON_HEDLEY_STRINGIFY_EX(x)
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_CONCAT_EX)
ferencd@0:     #undef JSON_HEDLEY_CONCAT_EX
ferencd@0: #endif
ferencd@0: #define JSON_HEDLEY_CONCAT_EX(a,b) a##b
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_CONCAT)
ferencd@0:     #undef JSON_HEDLEY_CONCAT
ferencd@0: #endif
ferencd@0: #define JSON_HEDLEY_CONCAT(a,b) JSON_HEDLEY_CONCAT_EX(a,b)
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_VERSION_ENCODE)
ferencd@0:     #undef JSON_HEDLEY_VERSION_ENCODE
ferencd@0: #endif
ferencd@0: #define JSON_HEDLEY_VERSION_ENCODE(major,minor,revision) (((major) * 1000000) + ((minor) * 1000) + (revision))
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_VERSION_DECODE_MAJOR)
ferencd@0:     #undef JSON_HEDLEY_VERSION_DECODE_MAJOR
ferencd@0: #endif
ferencd@0: #define JSON_HEDLEY_VERSION_DECODE_MAJOR(version) ((version) / 1000000)
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_VERSION_DECODE_MINOR)
ferencd@0:     #undef JSON_HEDLEY_VERSION_DECODE_MINOR
ferencd@0: #endif
ferencd@0: #define JSON_HEDLEY_VERSION_DECODE_MINOR(version) (((version) % 1000000) / 1000)
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_VERSION_DECODE_REVISION)
ferencd@0:     #undef JSON_HEDLEY_VERSION_DECODE_REVISION
ferencd@0: #endif
ferencd@0: #define JSON_HEDLEY_VERSION_DECODE_REVISION(version) ((version) % 1000)
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_GNUC_VERSION)
ferencd@0:     #undef JSON_HEDLEY_GNUC_VERSION
ferencd@0: #endif
ferencd@0: #if defined(__GNUC__) && defined(__GNUC_PATCHLEVEL__)
ferencd@0:     #define JSON_HEDLEY_GNUC_VERSION JSON_HEDLEY_VERSION_ENCODE(__GNUC__, __GNUC_MINOR__, __GNUC_PATCHLEVEL__)
ferencd@0: #elif defined(__GNUC__)
ferencd@0:     #define JSON_HEDLEY_GNUC_VERSION JSON_HEDLEY_VERSION_ENCODE(__GNUC__, __GNUC_MINOR__, 0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_GNUC_VERSION_CHECK)
ferencd@0:     #undef JSON_HEDLEY_GNUC_VERSION_CHECK
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_GNUC_VERSION)
ferencd@0:     #define JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_GNUC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_MSVC_VERSION)
ferencd@0:     #undef JSON_HEDLEY_MSVC_VERSION
ferencd@0: #endif
ferencd@0: #if defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 140000000)
ferencd@0:     #define JSON_HEDLEY_MSVC_VERSION JSON_HEDLEY_VERSION_ENCODE(_MSC_FULL_VER / 10000000, (_MSC_FULL_VER % 10000000) / 100000, (_MSC_FULL_VER % 100000) / 100)
ferencd@0: #elif defined(_MSC_FULL_VER)
ferencd@0:     #define JSON_HEDLEY_MSVC_VERSION JSON_HEDLEY_VERSION_ENCODE(_MSC_FULL_VER / 1000000, (_MSC_FULL_VER % 1000000) / 10000, (_MSC_FULL_VER % 10000) / 10)
ferencd@0: #elif defined(_MSC_VER)
ferencd@0:     #define JSON_HEDLEY_MSVC_VERSION JSON_HEDLEY_VERSION_ENCODE(_MSC_VER / 100, _MSC_VER % 100, 0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_MSVC_VERSION_CHECK)
ferencd@0:     #undef JSON_HEDLEY_MSVC_VERSION_CHECK
ferencd@0: #endif
ferencd@0: #if !defined(_MSC_VER)
ferencd@0:     #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (0)
ferencd@0: #elif defined(_MSC_VER) && (_MSC_VER >= 1400)
ferencd@0:     #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (_MSC_FULL_VER >= ((major * 10000000) + (minor * 100000) + (patch)))
ferencd@0: #elif defined(_MSC_VER) && (_MSC_VER >= 1200)
ferencd@0:     #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (_MSC_FULL_VER >= ((major * 1000000) + (minor * 10000) + (patch)))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_MSVC_VERSION_CHECK(major,minor,patch) (_MSC_VER >= ((major * 100) + (minor)))
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_INTEL_VERSION)
ferencd@0:     #undef JSON_HEDLEY_INTEL_VERSION
ferencd@0: #endif
ferencd@0: #if defined(__INTEL_COMPILER) && defined(__INTEL_COMPILER_UPDATE)
ferencd@0:     #define JSON_HEDLEY_INTEL_VERSION JSON_HEDLEY_VERSION_ENCODE(__INTEL_COMPILER / 100, __INTEL_COMPILER % 100, __INTEL_COMPILER_UPDATE)
ferencd@0: #elif defined(__INTEL_COMPILER)
ferencd@0:     #define JSON_HEDLEY_INTEL_VERSION JSON_HEDLEY_VERSION_ENCODE(__INTEL_COMPILER / 100, __INTEL_COMPILER % 100, 0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_INTEL_VERSION_CHECK)
ferencd@0:     #undef JSON_HEDLEY_INTEL_VERSION_CHECK
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_INTEL_VERSION)
ferencd@0:     #define JSON_HEDLEY_INTEL_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_INTEL_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_INTEL_VERSION_CHECK(major,minor,patch) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_PGI_VERSION)
ferencd@0:     #undef JSON_HEDLEY_PGI_VERSION
ferencd@0: #endif
ferencd@0: #if defined(__PGI) && defined(__PGIC__) && defined(__PGIC_MINOR__) && defined(__PGIC_PATCHLEVEL__)
ferencd@0:     #define JSON_HEDLEY_PGI_VERSION JSON_HEDLEY_VERSION_ENCODE(__PGIC__, __PGIC_MINOR__, __PGIC_PATCHLEVEL__)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_PGI_VERSION_CHECK)
ferencd@0:     #undef JSON_HEDLEY_PGI_VERSION_CHECK
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_PGI_VERSION)
ferencd@0:     #define JSON_HEDLEY_PGI_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_PGI_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_PGI_VERSION_CHECK(major,minor,patch) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_SUNPRO_VERSION)
ferencd@0:     #undef JSON_HEDLEY_SUNPRO_VERSION
ferencd@0: #endif
ferencd@0: #if defined(__SUNPRO_C) && (__SUNPRO_C > 0x1000)
ferencd@0:     #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((((__SUNPRO_C >> 16) & 0xf) * 10) + ((__SUNPRO_C >> 12) & 0xf), (((__SUNPRO_C >> 8) & 0xf) * 10) + ((__SUNPRO_C >> 4) & 0xf), (__SUNPRO_C & 0xf) * 10)
ferencd@0: #elif defined(__SUNPRO_C)
ferencd@0:     #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((__SUNPRO_C >> 8) & 0xf, (__SUNPRO_C >> 4) & 0xf, (__SUNPRO_C) & 0xf)
ferencd@0: #elif defined(__SUNPRO_CC) && (__SUNPRO_CC > 0x1000)
ferencd@0:     #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((((__SUNPRO_CC >> 16) & 0xf) * 10) + ((__SUNPRO_CC >> 12) & 0xf), (((__SUNPRO_CC >> 8) & 0xf) * 10) + ((__SUNPRO_CC >> 4) & 0xf), (__SUNPRO_CC & 0xf) * 10)
ferencd@0: #elif defined(__SUNPRO_CC)
ferencd@0:     #define JSON_HEDLEY_SUNPRO_VERSION JSON_HEDLEY_VERSION_ENCODE((__SUNPRO_CC >> 8) & 0xf, (__SUNPRO_CC >> 4) & 0xf, (__SUNPRO_CC) & 0xf)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_SUNPRO_VERSION_CHECK)
ferencd@0:     #undef JSON_HEDLEY_SUNPRO_VERSION_CHECK
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_SUNPRO_VERSION)
ferencd@0:     #define JSON_HEDLEY_SUNPRO_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_SUNPRO_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_SUNPRO_VERSION_CHECK(major,minor,patch) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_EMSCRIPTEN_VERSION)
ferencd@0:     #undef JSON_HEDLEY_EMSCRIPTEN_VERSION
ferencd@0: #endif
ferencd@0: #if defined(__EMSCRIPTEN__)
ferencd@0:     #define JSON_HEDLEY_EMSCRIPTEN_VERSION JSON_HEDLEY_VERSION_ENCODE(__EMSCRIPTEN_major__, __EMSCRIPTEN_minor__, __EMSCRIPTEN_tiny__)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK)
ferencd@0:     #undef JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_EMSCRIPTEN_VERSION)
ferencd@0:     #define JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_EMSCRIPTEN_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK(major,minor,patch) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_ARM_VERSION)
ferencd@0:     #undef JSON_HEDLEY_ARM_VERSION
ferencd@0: #endif
ferencd@0: #if defined(__CC_ARM) && defined(__ARMCOMPILER_VERSION)
ferencd@0:     #define JSON_HEDLEY_ARM_VERSION JSON_HEDLEY_VERSION_ENCODE(__ARMCOMPILER_VERSION / 1000000, (__ARMCOMPILER_VERSION % 1000000) / 10000, (__ARMCOMPILER_VERSION % 10000) / 100)
ferencd@0: #elif defined(__CC_ARM) && defined(__ARMCC_VERSION)
ferencd@0:     #define JSON_HEDLEY_ARM_VERSION JSON_HEDLEY_VERSION_ENCODE(__ARMCC_VERSION / 1000000, (__ARMCC_VERSION % 1000000) / 10000, (__ARMCC_VERSION % 10000) / 100)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_ARM_VERSION_CHECK)
ferencd@0:     #undef JSON_HEDLEY_ARM_VERSION_CHECK
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_ARM_VERSION)
ferencd@0:     #define JSON_HEDLEY_ARM_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_ARM_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_ARM_VERSION_CHECK(major,minor,patch) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_IBM_VERSION)
ferencd@0:     #undef JSON_HEDLEY_IBM_VERSION
ferencd@0: #endif
ferencd@0: #if defined(__ibmxl__)
ferencd@0:     #define JSON_HEDLEY_IBM_VERSION JSON_HEDLEY_VERSION_ENCODE(__ibmxl_version__, __ibmxl_release__, __ibmxl_modification__)
ferencd@0: #elif defined(__xlC__) && defined(__xlC_ver__)
ferencd@0:     #define JSON_HEDLEY_IBM_VERSION JSON_HEDLEY_VERSION_ENCODE(__xlC__ >> 8, __xlC__ & 0xff, (__xlC_ver__ >> 8) & 0xff)
ferencd@0: #elif defined(__xlC__)
ferencd@0:     #define JSON_HEDLEY_IBM_VERSION JSON_HEDLEY_VERSION_ENCODE(__xlC__ >> 8, __xlC__ & 0xff, 0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_IBM_VERSION_CHECK)
ferencd@0:     #undef JSON_HEDLEY_IBM_VERSION_CHECK
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_IBM_VERSION)
ferencd@0:     #define JSON_HEDLEY_IBM_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_IBM_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_IBM_VERSION_CHECK(major,minor,patch) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_TI_VERSION)
ferencd@0:     #undef JSON_HEDLEY_TI_VERSION
ferencd@0: #endif
ferencd@0: #if defined(__TI_COMPILER_VERSION__)
ferencd@0:     #define JSON_HEDLEY_TI_VERSION JSON_HEDLEY_VERSION_ENCODE(__TI_COMPILER_VERSION__ / 1000000, (__TI_COMPILER_VERSION__ % 1000000) / 1000, (__TI_COMPILER_VERSION__ % 1000))
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_TI_VERSION_CHECK)
ferencd@0:     #undef JSON_HEDLEY_TI_VERSION_CHECK
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_TI_VERSION)
ferencd@0:     #define JSON_HEDLEY_TI_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TI_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_TI_VERSION_CHECK(major,minor,patch) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_CRAY_VERSION)
ferencd@0:     #undef JSON_HEDLEY_CRAY_VERSION
ferencd@0: #endif
ferencd@0: #if defined(_CRAYC)
ferencd@0:     #if defined(_RELEASE_PATCHLEVEL)
ferencd@0:         #define JSON_HEDLEY_CRAY_VERSION JSON_HEDLEY_VERSION_ENCODE(_RELEASE_MAJOR, _RELEASE_MINOR, _RELEASE_PATCHLEVEL)
ferencd@0:     #else
ferencd@0:         #define JSON_HEDLEY_CRAY_VERSION JSON_HEDLEY_VERSION_ENCODE(_RELEASE_MAJOR, _RELEASE_MINOR, 0)
ferencd@0:     #endif
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_CRAY_VERSION_CHECK)
ferencd@0:     #undef JSON_HEDLEY_CRAY_VERSION_CHECK
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_CRAY_VERSION)
ferencd@0:     #define JSON_HEDLEY_CRAY_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_CRAY_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_CRAY_VERSION_CHECK(major,minor,patch) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_IAR_VERSION)
ferencd@0:     #undef JSON_HEDLEY_IAR_VERSION
ferencd@0: #endif
ferencd@0: #if defined(__IAR_SYSTEMS_ICC__)
ferencd@0:     #if __VER__ > 1000
ferencd@0:         #define JSON_HEDLEY_IAR_VERSION JSON_HEDLEY_VERSION_ENCODE((__VER__ / 1000000), ((__VER__ / 1000) % 1000), (__VER__ % 1000))
ferencd@0:     #else
ferencd@0:         #define JSON_HEDLEY_IAR_VERSION JSON_HEDLEY_VERSION_ENCODE(VER / 100, __VER__ % 100, 0)
ferencd@0:     #endif
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_IAR_VERSION_CHECK)
ferencd@0:     #undef JSON_HEDLEY_IAR_VERSION_CHECK
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_IAR_VERSION)
ferencd@0:     #define JSON_HEDLEY_IAR_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_IAR_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_IAR_VERSION_CHECK(major,minor,patch) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_TINYC_VERSION)
ferencd@0:     #undef JSON_HEDLEY_TINYC_VERSION
ferencd@0: #endif
ferencd@0: #if defined(__TINYC__)
ferencd@0:     #define JSON_HEDLEY_TINYC_VERSION JSON_HEDLEY_VERSION_ENCODE(__TINYC__ / 1000, (__TINYC__ / 100) % 10, __TINYC__ % 100)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_TINYC_VERSION_CHECK)
ferencd@0:     #undef JSON_HEDLEY_TINYC_VERSION_CHECK
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_TINYC_VERSION)
ferencd@0:     #define JSON_HEDLEY_TINYC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_TINYC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_TINYC_VERSION_CHECK(major,minor,patch) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_DMC_VERSION)
ferencd@0:     #undef JSON_HEDLEY_DMC_VERSION
ferencd@0: #endif
ferencd@0: #if defined(__DMC__)
ferencd@0:     #define JSON_HEDLEY_DMC_VERSION JSON_HEDLEY_VERSION_ENCODE(__DMC__ >> 8, (__DMC__ >> 4) & 0xf, __DMC__ & 0xf)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_DMC_VERSION_CHECK)
ferencd@0:     #undef JSON_HEDLEY_DMC_VERSION_CHECK
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_DMC_VERSION)
ferencd@0:     #define JSON_HEDLEY_DMC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_DMC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_DMC_VERSION_CHECK(major,minor,patch) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_COMPCERT_VERSION)
ferencd@0:     #undef JSON_HEDLEY_COMPCERT_VERSION
ferencd@0: #endif
ferencd@0: #if defined(__COMPCERT_VERSION__)
ferencd@0:     #define JSON_HEDLEY_COMPCERT_VERSION JSON_HEDLEY_VERSION_ENCODE(__COMPCERT_VERSION__ / 10000, (__COMPCERT_VERSION__ / 100) % 100, __COMPCERT_VERSION__ % 100)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_COMPCERT_VERSION_CHECK)
ferencd@0:     #undef JSON_HEDLEY_COMPCERT_VERSION_CHECK
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_COMPCERT_VERSION)
ferencd@0:     #define JSON_HEDLEY_COMPCERT_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_COMPCERT_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_COMPCERT_VERSION_CHECK(major,minor,patch) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_PELLES_VERSION)
ferencd@0:     #undef JSON_HEDLEY_PELLES_VERSION
ferencd@0: #endif
ferencd@0: #if defined(__POCC__)
ferencd@0:     #define JSON_HEDLEY_PELLES_VERSION JSON_HEDLEY_VERSION_ENCODE(__POCC__ / 100, __POCC__ % 100, 0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_PELLES_VERSION_CHECK)
ferencd@0:     #undef JSON_HEDLEY_PELLES_VERSION_CHECK
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_PELLES_VERSION)
ferencd@0:     #define JSON_HEDLEY_PELLES_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_PELLES_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_PELLES_VERSION_CHECK(major,minor,patch) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_GCC_VERSION)
ferencd@0:     #undef JSON_HEDLEY_GCC_VERSION
ferencd@0: #endif
ferencd@0: #if \
ferencd@0:     defined(JSON_HEDLEY_GNUC_VERSION) && \
ferencd@0:     !defined(__clang__) && \
ferencd@0:     !defined(JSON_HEDLEY_INTEL_VERSION) && \
ferencd@0:     !defined(JSON_HEDLEY_PGI_VERSION) && \
ferencd@0:     !defined(JSON_HEDLEY_ARM_VERSION) && \
ferencd@0:     !defined(JSON_HEDLEY_TI_VERSION) && \
ferencd@0:     !defined(__COMPCERT__)
ferencd@0:     #define JSON_HEDLEY_GCC_VERSION JSON_HEDLEY_GNUC_VERSION
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_GCC_VERSION_CHECK)
ferencd@0:     #undef JSON_HEDLEY_GCC_VERSION_CHECK
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_GCC_VERSION)
ferencd@0:     #define JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) (JSON_HEDLEY_GCC_VERSION >= JSON_HEDLEY_VERSION_ENCODE(major, minor, patch))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_HAS_ATTRIBUTE)
ferencd@0:     #undef JSON_HEDLEY_HAS_ATTRIBUTE
ferencd@0: #endif
ferencd@0: #if defined(__has_attribute)
ferencd@0:     #define JSON_HEDLEY_HAS_ATTRIBUTE(attribute) __has_attribute(attribute)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_HAS_ATTRIBUTE(attribute) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_GNUC_HAS_ATTRIBUTE)
ferencd@0:     #undef JSON_HEDLEY_GNUC_HAS_ATTRIBUTE
ferencd@0: #endif
ferencd@0: #if defined(__has_attribute)
ferencd@0:     #define JSON_HEDLEY_GNUC_HAS_ATTRIBUTE(attribute,major,minor,patch) __has_attribute(attribute)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_GNUC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_GCC_HAS_ATTRIBUTE)
ferencd@0:     #undef JSON_HEDLEY_GCC_HAS_ATTRIBUTE
ferencd@0: #endif
ferencd@0: #if defined(__has_attribute)
ferencd@0:     #define JSON_HEDLEY_GCC_HAS_ATTRIBUTE(attribute,major,minor,patch) __has_attribute(attribute)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_GCC_HAS_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_HAS_CPP_ATTRIBUTE)
ferencd@0:     #undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE
ferencd@0: #endif
ferencd@0: #if defined(__has_cpp_attribute) && defined(__cplusplus)
ferencd@0:     #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE(attribute) __has_cpp_attribute(attribute)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_HAS_CPP_ATTRIBUTE(attribute) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE)
ferencd@0:     #undef JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE
ferencd@0: #endif
ferencd@0: #if defined(__has_cpp_attribute) && defined(__cplusplus)
ferencd@0:     #define JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) __has_cpp_attribute(attribute)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE)
ferencd@0:     #undef JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE
ferencd@0: #endif
ferencd@0: #if defined(__has_cpp_attribute) && defined(__cplusplus)
ferencd@0:     #define JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) __has_cpp_attribute(attribute)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_HAS_BUILTIN)
ferencd@0:     #undef JSON_HEDLEY_HAS_BUILTIN
ferencd@0: #endif
ferencd@0: #if defined(__has_builtin)
ferencd@0:     #define JSON_HEDLEY_HAS_BUILTIN(builtin) __has_builtin(builtin)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_HAS_BUILTIN(builtin) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_GNUC_HAS_BUILTIN)
ferencd@0:     #undef JSON_HEDLEY_GNUC_HAS_BUILTIN
ferencd@0: #endif
ferencd@0: #if defined(__has_builtin)
ferencd@0:     #define JSON_HEDLEY_GNUC_HAS_BUILTIN(builtin,major,minor,patch) __has_builtin(builtin)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_GNUC_HAS_BUILTIN(builtin,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_GCC_HAS_BUILTIN)
ferencd@0:     #undef JSON_HEDLEY_GCC_HAS_BUILTIN
ferencd@0: #endif
ferencd@0: #if defined(__has_builtin)
ferencd@0:     #define JSON_HEDLEY_GCC_HAS_BUILTIN(builtin,major,minor,patch) __has_builtin(builtin)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_GCC_HAS_BUILTIN(builtin,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_HAS_FEATURE)
ferencd@0:     #undef JSON_HEDLEY_HAS_FEATURE
ferencd@0: #endif
ferencd@0: #if defined(__has_feature)
ferencd@0:     #define JSON_HEDLEY_HAS_FEATURE(feature) __has_feature(feature)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_HAS_FEATURE(feature) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_GNUC_HAS_FEATURE)
ferencd@0:     #undef JSON_HEDLEY_GNUC_HAS_FEATURE
ferencd@0: #endif
ferencd@0: #if defined(__has_feature)
ferencd@0:     #define JSON_HEDLEY_GNUC_HAS_FEATURE(feature,major,minor,patch) __has_feature(feature)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_GNUC_HAS_FEATURE(feature,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_GCC_HAS_FEATURE)
ferencd@0:     #undef JSON_HEDLEY_GCC_HAS_FEATURE
ferencd@0: #endif
ferencd@0: #if defined(__has_feature)
ferencd@0:     #define JSON_HEDLEY_GCC_HAS_FEATURE(feature,major,minor,patch) __has_feature(feature)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_GCC_HAS_FEATURE(feature,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_HAS_EXTENSION)
ferencd@0:     #undef JSON_HEDLEY_HAS_EXTENSION
ferencd@0: #endif
ferencd@0: #if defined(__has_extension)
ferencd@0:     #define JSON_HEDLEY_HAS_EXTENSION(extension) __has_extension(extension)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_HAS_EXTENSION(extension) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_GNUC_HAS_EXTENSION)
ferencd@0:     #undef JSON_HEDLEY_GNUC_HAS_EXTENSION
ferencd@0: #endif
ferencd@0: #if defined(__has_extension)
ferencd@0:     #define JSON_HEDLEY_GNUC_HAS_EXTENSION(extension,major,minor,patch) __has_extension(extension)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_GNUC_HAS_EXTENSION(extension,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_GCC_HAS_EXTENSION)
ferencd@0:     #undef JSON_HEDLEY_GCC_HAS_EXTENSION
ferencd@0: #endif
ferencd@0: #if defined(__has_extension)
ferencd@0:     #define JSON_HEDLEY_GCC_HAS_EXTENSION(extension,major,minor,patch) __has_extension(extension)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_GCC_HAS_EXTENSION(extension,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE)
ferencd@0:     #undef JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE
ferencd@0: #endif
ferencd@0: #if defined(__has_declspec_attribute)
ferencd@0:     #define JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE(attribute) __has_declspec_attribute(attribute)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE(attribute) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE)
ferencd@0:     #undef JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE
ferencd@0: #endif
ferencd@0: #if defined(__has_declspec_attribute)
ferencd@0:     #define JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) __has_declspec_attribute(attribute)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE)
ferencd@0:     #undef JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE
ferencd@0: #endif
ferencd@0: #if defined(__has_declspec_attribute)
ferencd@0:     #define JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) __has_declspec_attribute(attribute)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE(attribute,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_HAS_WARNING)
ferencd@0:     #undef JSON_HEDLEY_HAS_WARNING
ferencd@0: #endif
ferencd@0: #if defined(__has_warning)
ferencd@0:     #define JSON_HEDLEY_HAS_WARNING(warning) __has_warning(warning)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_HAS_WARNING(warning) (0)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_GNUC_HAS_WARNING)
ferencd@0:     #undef JSON_HEDLEY_GNUC_HAS_WARNING
ferencd@0: #endif
ferencd@0: #if defined(__has_warning)
ferencd@0:     #define JSON_HEDLEY_GNUC_HAS_WARNING(warning,major,minor,patch) __has_warning(warning)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_GNUC_HAS_WARNING(warning,major,minor,patch) JSON_HEDLEY_GNUC_VERSION_CHECK(major,minor,patch)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_GCC_HAS_WARNING)
ferencd@0:     #undef JSON_HEDLEY_GCC_HAS_WARNING
ferencd@0: #endif
ferencd@0: #if defined(__has_warning)
ferencd@0:     #define JSON_HEDLEY_GCC_HAS_WARNING(warning,major,minor,patch) __has_warning(warning)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_GCC_HAS_WARNING(warning,major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if \
ferencd@0:     (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) || \
ferencd@0:     defined(__clang__) || \
ferencd@0:     JSON_HEDLEY_GCC_VERSION_CHECK(3,0,0) || \
ferencd@0:     JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
ferencd@0:     JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) || \
ferencd@0:     JSON_HEDLEY_PGI_VERSION_CHECK(18,4,0) || \
ferencd@0:     JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
ferencd@0:     JSON_HEDLEY_TI_VERSION_CHECK(6,0,0) || \
ferencd@0:     JSON_HEDLEY_CRAY_VERSION_CHECK(5,0,0) || \
ferencd@0:     JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,17) || \
ferencd@0:     JSON_HEDLEY_SUNPRO_VERSION_CHECK(8,0,0) || \
ferencd@0:     (JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) && defined(__C99_PRAGMA_OPERATOR))
ferencd@0:     #define JSON_HEDLEY_PRAGMA(value) _Pragma(#value)
ferencd@0: #elif JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0)
ferencd@0:     #define JSON_HEDLEY_PRAGMA(value) __pragma(value)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_PRAGMA(value)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_DIAGNOSTIC_PUSH)
ferencd@0:     #undef JSON_HEDLEY_DIAGNOSTIC_PUSH
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_DIAGNOSTIC_POP)
ferencd@0:     #undef JSON_HEDLEY_DIAGNOSTIC_POP
ferencd@0: #endif
ferencd@0: #if defined(__clang__)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("clang diagnostic push")
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("clang diagnostic pop")
ferencd@0: #elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("warning(push)")
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("warning(pop)")
ferencd@0: #elif JSON_HEDLEY_GCC_VERSION_CHECK(4,6,0)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("GCC diagnostic push")
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("GCC diagnostic pop")
ferencd@0: #elif JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_PUSH __pragma(warning(push))
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_POP __pragma(warning(pop))
ferencd@0: #elif JSON_HEDLEY_ARM_VERSION_CHECK(5,6,0)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("push")
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("pop")
ferencd@0: #elif JSON_HEDLEY_TI_VERSION_CHECK(8,1,0)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("diag_push")
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("diag_pop")
ferencd@0: #elif JSON_HEDLEY_PELLES_VERSION_CHECK(2,90,0)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_PUSH _Pragma("warning(push)")
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_POP _Pragma("warning(pop)")
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_PUSH
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_POP
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED)
ferencd@0:     #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED
ferencd@0: #endif
ferencd@0: #if JSON_HEDLEY_HAS_WARNING("-Wdeprecated-declarations")
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("clang diagnostic ignored \"-Wdeprecated-declarations\"")
ferencd@0: #elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("warning(disable:1478 1786)")
ferencd@0: #elif JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1215,1444")
ferencd@0: #elif JSON_HEDLEY_GCC_VERSION_CHECK(4,3,0)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("GCC diagnostic ignored \"-Wdeprecated-declarations\"")
ferencd@0: #elif JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED __pragma(warning(disable:4996))
ferencd@0: #elif JSON_HEDLEY_TI_VERSION_CHECK(8,0,0)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress 1291,1718")
ferencd@0: #elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,13,0) && !defined(__cplusplus)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("error_messages(off,E_DEPRECATED_ATT,E_DEPRECATED_ATT_MESS)")
ferencd@0: #elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,13,0) && defined(__cplusplus)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("error_messages(off,symdeprecated,symdeprecated2)")
ferencd@0: #elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("diag_suppress=Pe1444,Pe1215")
ferencd@0: #elif JSON_HEDLEY_PELLES_VERSION_CHECK(2,90,0)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED _Pragma("warn(disable:2241)")
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS)
ferencd@0:     #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS
ferencd@0: #endif
ferencd@0: #if JSON_HEDLEY_HAS_WARNING("-Wunknown-pragmas")
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("clang diagnostic ignored \"-Wunknown-pragmas\"")
ferencd@0: #elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("warning(disable:161)")
ferencd@0: #elif JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 1675")
ferencd@0: #elif JSON_HEDLEY_GCC_VERSION_CHECK(4,3,0)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("GCC diagnostic ignored \"-Wunknown-pragmas\"")
ferencd@0: #elif JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS __pragma(warning(disable:4068))
ferencd@0: #elif JSON_HEDLEY_TI_VERSION_CHECK(8,0,0)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress 163")
ferencd@0: #elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS _Pragma("diag_suppress=Pe161")
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL)
ferencd@0:     #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL
ferencd@0: #endif
ferencd@0: #if JSON_HEDLEY_HAS_WARNING("-Wcast-qual")
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL _Pragma("clang diagnostic ignored \"-Wcast-qual\"")
ferencd@0: #elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL _Pragma("warning(disable:2203 2331)")
ferencd@0: #elif JSON_HEDLEY_GCC_VERSION_CHECK(3,0,0)
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL _Pragma("GCC diagnostic ignored \"-Wcast-qual\"")
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_DEPRECATED)
ferencd@0:     #undef JSON_HEDLEY_DEPRECATED
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_DEPRECATED_FOR)
ferencd@0:     #undef JSON_HEDLEY_DEPRECATED_FOR
ferencd@0: #endif
ferencd@0: #if defined(__cplusplus) && (__cplusplus >= 201402L)
ferencd@0:     #define JSON_HEDLEY_DEPRECATED(since) [[deprecated("Since " #since)]]
ferencd@0:     #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) [[deprecated("Since " #since "; use " #replacement)]]
ferencd@0: #elif \
ferencd@0:     JSON_HEDLEY_HAS_EXTENSION(attribute_deprecated_with_message) || \
ferencd@0:     JSON_HEDLEY_GCC_VERSION_CHECK(4,5,0) || \
ferencd@0:     JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
ferencd@0:     JSON_HEDLEY_ARM_VERSION_CHECK(5,6,0) || \
ferencd@0:     JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,13,0) || \
ferencd@0:     JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \
ferencd@0:     JSON_HEDLEY_TI_VERSION_CHECK(8,3,0)
ferencd@0:     #define JSON_HEDLEY_DEPRECATED(since) __attribute__((__deprecated__("Since " #since)))
ferencd@0:     #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __attribute__((__deprecated__("Since " #since "; use " #replacement)))
ferencd@0: #elif \
ferencd@0:     JSON_HEDLEY_HAS_ATTRIBUTE(deprecated) || \
ferencd@0:     JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \
ferencd@0:     JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
ferencd@0:     JSON_HEDLEY_TI_VERSION_CHECK(8,0,0) || \
ferencd@0:     (JSON_HEDLEY_TI_VERSION_CHECK(7,3,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__))
ferencd@0:     #define JSON_HEDLEY_DEPRECATED(since) __attribute__((__deprecated__))
ferencd@0:     #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __attribute__((__deprecated__))
ferencd@0: #elif JSON_HEDLEY_MSVC_VERSION_CHECK(14,0,0)
ferencd@0:     #define JSON_HEDLEY_DEPRECATED(since) __declspec(deprecated("Since " # since))
ferencd@0:     #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __declspec(deprecated("Since " #since "; use " #replacement))
ferencd@0: #elif \
ferencd@0:     JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \
ferencd@0:     JSON_HEDLEY_PELLES_VERSION_CHECK(6,50,0)
ferencd@0:     #define JSON_HEDLEY_DEPRECATED(since) _declspec(deprecated)
ferencd@0:     #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) __declspec(deprecated)
ferencd@0: #elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0)
ferencd@0:     #define JSON_HEDLEY_DEPRECATED(since) _Pragma("deprecated")
ferencd@0:     #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement) _Pragma("deprecated")
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_DEPRECATED(since)
ferencd@0:     #define JSON_HEDLEY_DEPRECATED_FOR(since, replacement)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_UNAVAILABLE)
ferencd@0:     #undef JSON_HEDLEY_UNAVAILABLE
ferencd@0: #endif
ferencd@0: #if \
ferencd@0:     JSON_HEDLEY_HAS_ATTRIBUTE(warning) || \
ferencd@0:     JSON_HEDLEY_GCC_VERSION_CHECK(4,3,0) || \
ferencd@0:     JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0)
ferencd@0:     #define JSON_HEDLEY_UNAVAILABLE(available_since) __attribute__((__warning__("Not available until " #available_since)))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_UNAVAILABLE(available_since)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_WARN_UNUSED_RESULT)
ferencd@0:     #undef JSON_HEDLEY_WARN_UNUSED_RESULT
ferencd@0: #endif
ferencd@0: #if defined(__cplusplus) && (__cplusplus >= 201703L)
ferencd@0:     #define JSON_HEDLEY_WARN_UNUSED_RESULT [[nodiscard]]
ferencd@0: #elif \
ferencd@0:     JSON_HEDLEY_HAS_ATTRIBUTE(warn_unused_result) || \
ferencd@0:     JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) || \
ferencd@0:     JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
ferencd@0:     JSON_HEDLEY_TI_VERSION_CHECK(8,0,0) || \
ferencd@0:     (JSON_HEDLEY_TI_VERSION_CHECK(7,3,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
ferencd@0:     (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0) && defined(__cplusplus)) || \
ferencd@0:     JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0)
ferencd@0:     #define JSON_HEDLEY_WARN_UNUSED_RESULT __attribute__((__warn_unused_result__))
ferencd@0: #elif defined(_Check_return_) /* SAL */
ferencd@0:     #define JSON_HEDLEY_WARN_UNUSED_RESULT _Check_return_
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_WARN_UNUSED_RESULT
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_SENTINEL)
ferencd@0:     #undef JSON_HEDLEY_SENTINEL
ferencd@0: #endif
ferencd@0: #if \
ferencd@0:     JSON_HEDLEY_HAS_ATTRIBUTE(sentinel) || \
ferencd@0:     JSON_HEDLEY_GCC_VERSION_CHECK(4,0,0) || \
ferencd@0:     JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
ferencd@0:     JSON_HEDLEY_ARM_VERSION_CHECK(5,4,0)
ferencd@0:     #define JSON_HEDLEY_SENTINEL(position) __attribute__((__sentinel__(position)))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_SENTINEL(position)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_NO_RETURN)
ferencd@0:     #undef JSON_HEDLEY_NO_RETURN
ferencd@0: #endif
ferencd@0: #if JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0)
ferencd@0:     #define JSON_HEDLEY_NO_RETURN __noreturn
ferencd@0: #elif JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0)
ferencd@0:     #define JSON_HEDLEY_NO_RETURN __attribute__((__noreturn__))
ferencd@0: #elif defined(__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
ferencd@0:     #define JSON_HEDLEY_NO_RETURN _Noreturn
ferencd@0: #elif defined(__cplusplus) && (__cplusplus >= 201103L)
ferencd@0:     #define JSON_HEDLEY_NO_RETURN [[noreturn]]
ferencd@0: #elif \
ferencd@0:     JSON_HEDLEY_HAS_ATTRIBUTE(noreturn) || \
ferencd@0:     JSON_HEDLEY_GCC_VERSION_CHECK(3,2,0) || \
ferencd@0:     JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \
ferencd@0:     JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
ferencd@0:     JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \
ferencd@0:     JSON_HEDLEY_TI_VERSION_CHECK(18,0,0) || \
ferencd@0:     (JSON_HEDLEY_TI_VERSION_CHECK(17,3,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__))
ferencd@0:     #define JSON_HEDLEY_NO_RETURN __attribute__((__noreturn__))
ferencd@0: #elif JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0)
ferencd@0:     #define JSON_HEDLEY_NO_RETURN __declspec(noreturn)
ferencd@0: #elif JSON_HEDLEY_TI_VERSION_CHECK(6,0,0) && defined(__cplusplus)
ferencd@0:     #define JSON_HEDLEY_NO_RETURN _Pragma("FUNC_NEVER_RETURNS;")
ferencd@0: #elif JSON_HEDLEY_COMPCERT_VERSION_CHECK(3,2,0)
ferencd@0:     #define JSON_HEDLEY_NO_RETURN __attribute((noreturn))
ferencd@0: #elif JSON_HEDLEY_PELLES_VERSION_CHECK(9,0,0)
ferencd@0:     #define JSON_HEDLEY_NO_RETURN __declspec(noreturn)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_NO_RETURN
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_UNREACHABLE)
ferencd@0:     #undef JSON_HEDLEY_UNREACHABLE
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_UNREACHABLE_RETURN)
ferencd@0:     #undef JSON_HEDLEY_UNREACHABLE_RETURN
ferencd@0: #endif
ferencd@0: #if \
ferencd@0:     (JSON_HEDLEY_HAS_BUILTIN(__builtin_unreachable) && (!defined(JSON_HEDLEY_ARM_VERSION))) || \
ferencd@0:     JSON_HEDLEY_GCC_VERSION_CHECK(4,5,0) || \
ferencd@0:     JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
ferencd@0:     JSON_HEDLEY_IBM_VERSION_CHECK(13,1,5)
ferencd@0:     #define JSON_HEDLEY_UNREACHABLE() __builtin_unreachable()
ferencd@0: #elif JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0)
ferencd@0:     #define JSON_HEDLEY_UNREACHABLE() __assume(0)
ferencd@0: #elif JSON_HEDLEY_TI_VERSION_CHECK(6,0,0)
ferencd@0:     #if defined(__cplusplus)
ferencd@0:         #define JSON_HEDLEY_UNREACHABLE() std::_nassert(0)
ferencd@0:     #else
ferencd@0:         #define JSON_HEDLEY_UNREACHABLE() _nassert(0)
ferencd@0:     #endif
ferencd@0:     #define JSON_HEDLEY_UNREACHABLE_RETURN(value) return value
ferencd@0: #elif defined(EXIT_FAILURE)
ferencd@0:     #define JSON_HEDLEY_UNREACHABLE() abort()
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_UNREACHABLE()
ferencd@0:     #define JSON_HEDLEY_UNREACHABLE_RETURN(value) return value
ferencd@0: #endif
ferencd@0: #if !defined(JSON_HEDLEY_UNREACHABLE_RETURN)
ferencd@0:     #define JSON_HEDLEY_UNREACHABLE_RETURN(value) JSON_HEDLEY_UNREACHABLE()
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_ASSUME)
ferencd@0:     #undef JSON_HEDLEY_ASSUME
ferencd@0: #endif
ferencd@0: #if \
ferencd@0:     JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0) || \
ferencd@0:     JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0)
ferencd@0:     #define JSON_HEDLEY_ASSUME(expr) __assume(expr)
ferencd@0: #elif JSON_HEDLEY_HAS_BUILTIN(__builtin_assume)
ferencd@0:     #define JSON_HEDLEY_ASSUME(expr) __builtin_assume(expr)
ferencd@0: #elif JSON_HEDLEY_TI_VERSION_CHECK(6,0,0)
ferencd@0:     #if defined(__cplusplus)
ferencd@0:         #define JSON_HEDLEY_ASSUME(expr) std::_nassert(expr)
ferencd@0:     #else
ferencd@0:         #define JSON_HEDLEY_ASSUME(expr) _nassert(expr)
ferencd@0:     #endif
ferencd@0: #elif \
ferencd@0:     (JSON_HEDLEY_HAS_BUILTIN(__builtin_unreachable) && !defined(JSON_HEDLEY_ARM_VERSION)) || \
ferencd@0:     JSON_HEDLEY_GCC_VERSION_CHECK(4,5,0) || \
ferencd@0:     JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
ferencd@0:     JSON_HEDLEY_IBM_VERSION_CHECK(13,1,5)
ferencd@0:     #define JSON_HEDLEY_ASSUME(expr) ((void) ((expr) ? 1 : (__builtin_unreachable(), 1)))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_ASSUME(expr) ((void) (expr))
ferencd@0: #endif
ferencd@0: 
ferencd@0: 
ferencd@0: JSON_HEDLEY_DIAGNOSTIC_PUSH
ferencd@0: #if \
ferencd@0:     JSON_HEDLEY_HAS_WARNING("-Wvariadic-macros") || \
ferencd@0:     JSON_HEDLEY_GCC_VERSION_CHECK(4,0,0)
ferencd@0:     #if defined(__clang__)
ferencd@0:         #pragma clang diagnostic ignored "-Wvariadic-macros"
ferencd@0:     #elif defined(JSON_HEDLEY_GCC_VERSION)
ferencd@0:         #pragma GCC diagnostic ignored "-Wvariadic-macros"
ferencd@0:     #endif
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_NON_NULL)
ferencd@0:     #undef JSON_HEDLEY_NON_NULL
ferencd@0: #endif
ferencd@0: #if \
ferencd@0:     JSON_HEDLEY_HAS_ATTRIBUTE(nonnull) || \
ferencd@0:     JSON_HEDLEY_GCC_VERSION_CHECK(3,3,0) || \
ferencd@0:     JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
ferencd@0:     JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0)
ferencd@0:     #define JSON_HEDLEY_NON_NULL(...) __attribute__((__nonnull__(__VA_ARGS__)))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_NON_NULL(...)
ferencd@0: #endif
ferencd@0: JSON_HEDLEY_DIAGNOSTIC_POP
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_PRINTF_FORMAT)
ferencd@0:     #undef JSON_HEDLEY_PRINTF_FORMAT
ferencd@0: #endif
ferencd@0: #if defined(__MINGW32__) && JSON_HEDLEY_GCC_HAS_ATTRIBUTE(format,4,4,0) && !defined(__USE_MINGW_ANSI_STDIO)
ferencd@0:     #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __attribute__((__format__(ms_printf, string_idx, first_to_check)))
ferencd@0: #elif defined(__MINGW32__) && JSON_HEDLEY_GCC_HAS_ATTRIBUTE(format,4,4,0) && defined(__USE_MINGW_ANSI_STDIO)
ferencd@0:     #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __attribute__((__format__(gnu_printf, string_idx, first_to_check)))
ferencd@0: #elif \
ferencd@0:     JSON_HEDLEY_HAS_ATTRIBUTE(format) || \
ferencd@0:     JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \
ferencd@0:     JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
ferencd@0:     JSON_HEDLEY_ARM_VERSION_CHECK(5,6,0) || \
ferencd@0:     JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \
ferencd@0:     JSON_HEDLEY_TI_VERSION_CHECK(8,0,0) || \
ferencd@0:     (JSON_HEDLEY_TI_VERSION_CHECK(7,3,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__))
ferencd@0:     #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __attribute__((__format__(__printf__, string_idx, first_to_check)))
ferencd@0: #elif JSON_HEDLEY_PELLES_VERSION_CHECK(6,0,0)
ferencd@0:     #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check) __declspec(vaformat(printf,string_idx,first_to_check))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_PRINTF_FORMAT(string_idx,first_to_check)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_CONSTEXPR)
ferencd@0:     #undef JSON_HEDLEY_CONSTEXPR
ferencd@0: #endif
ferencd@0: #if defined(__cplusplus)
ferencd@0:     #if __cplusplus >= 201103L
ferencd@0:         #define JSON_HEDLEY_CONSTEXPR constexpr
ferencd@0:     #endif
ferencd@0: #endif
ferencd@0: #if !defined(JSON_HEDLEY_CONSTEXPR)
ferencd@0:     #define JSON_HEDLEY_CONSTEXPR
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_PREDICT)
ferencd@0:     #undef JSON_HEDLEY_PREDICT
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_LIKELY)
ferencd@0:     #undef JSON_HEDLEY_LIKELY
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_UNLIKELY)
ferencd@0:     #undef JSON_HEDLEY_UNLIKELY
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_UNPREDICTABLE)
ferencd@0:     #undef JSON_HEDLEY_UNPREDICTABLE
ferencd@0: #endif
ferencd@0: #if JSON_HEDLEY_HAS_BUILTIN(__builtin_unpredictable)
ferencd@0:     #define JSON_HEDLEY_UNPREDICTABLE(expr) __builtin_unpredictable(!!(expr))
ferencd@0: #endif
ferencd@0: #if \
ferencd@0:   JSON_HEDLEY_HAS_BUILTIN(__builtin_expect_with_probability) || \
ferencd@0:   JSON_HEDLEY_GCC_VERSION_CHECK(9,0,0)
ferencd@0: #  define JSON_HEDLEY_PREDICT(expr, value, probability) __builtin_expect_with_probability(expr, value, probability)
ferencd@0: #  define JSON_HEDLEY_PREDICT_TRUE(expr, probability) __builtin_expect_with_probability(!!(expr), 1, probability)
ferencd@0: #  define JSON_HEDLEY_PREDICT_FALSE(expr, probability) __builtin_expect_with_probability(!!(expr), 0, probability)
ferencd@0: #  define JSON_HEDLEY_LIKELY(expr) __builtin_expect(!!(expr), 1)
ferencd@0: #  define JSON_HEDLEY_UNLIKELY(expr) __builtin_expect(!!(expr), 0)
ferencd@0: #if !defined(JSON_HEDLEY_BUILTIN_UNPREDICTABLE)
ferencd@0:     #define JSON_HEDLEY_BUILTIN_UNPREDICTABLE(expr) __builtin_expect_with_probability(!!(expr), 1, 0.5)
ferencd@0: #endif
ferencd@0: #elif \
ferencd@0:   JSON_HEDLEY_HAS_BUILTIN(__builtin_expect) || \
ferencd@0:   JSON_HEDLEY_GCC_VERSION_CHECK(3,0,0) || \
ferencd@0:   JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
ferencd@0:   (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0) && defined(__cplusplus)) || \
ferencd@0:   JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
ferencd@0:   JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \
ferencd@0:   JSON_HEDLEY_TI_VERSION_CHECK(6,1,0) || \
ferencd@0:   JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,27)
ferencd@0: #  define JSON_HEDLEY_PREDICT(expr, expected, probability) \
ferencd@0:     (((probability) >= 0.9) ? __builtin_expect(!!(expr), (expected)) : (((void) (expected)), !!(expr)))
ferencd@0: #  define JSON_HEDLEY_PREDICT_TRUE(expr, probability) \
ferencd@0:     (__extension__ ({ \
ferencd@0:         JSON_HEDLEY_CONSTEXPR double hedley_probability_ = (probability); \
ferencd@0:         ((hedley_probability_ >= 0.9) ? __builtin_expect(!!(expr), 1) : ((hedley_probability_ <= 0.1) ? __builtin_expect(!!(expr), 0) : !!(expr))); \
ferencd@0:     }))
ferencd@0: #  define JSON_HEDLEY_PREDICT_FALSE(expr, probability) \
ferencd@0:     (__extension__ ({ \
ferencd@0:         JSON_HEDLEY_CONSTEXPR double hedley_probability_ = (probability); \
ferencd@0:         ((hedley_probability_ >= 0.9) ? __builtin_expect(!!(expr), 0) : ((hedley_probability_ <= 0.1) ? __builtin_expect(!!(expr), 1) : !!(expr))); \
ferencd@0:     }))
ferencd@0: #  define JSON_HEDLEY_LIKELY(expr)   __builtin_expect(!!(expr), 1)
ferencd@0: #  define JSON_HEDLEY_UNLIKELY(expr) __builtin_expect(!!(expr), 0)
ferencd@0: #else
ferencd@0: #  define JSON_HEDLEY_PREDICT(expr, expected, probability) (((void) (expected)), !!(expr))
ferencd@0: #  define JSON_HEDLEY_PREDICT_TRUE(expr, probability) (!!(expr))
ferencd@0: #  define JSON_HEDLEY_PREDICT_FALSE(expr, probability) (!!(expr))
ferencd@0: #  define JSON_HEDLEY_LIKELY(expr) (!!(expr))
ferencd@0: #  define JSON_HEDLEY_UNLIKELY(expr) (!!(expr))
ferencd@0: #endif
ferencd@0: #if !defined(JSON_HEDLEY_UNPREDICTABLE)
ferencd@0:     #define JSON_HEDLEY_UNPREDICTABLE(expr) JSON_HEDLEY_PREDICT(expr, 1, 0.5)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_MALLOC)
ferencd@0:     #undef JSON_HEDLEY_MALLOC
ferencd@0: #endif
ferencd@0: #if \
ferencd@0:     JSON_HEDLEY_HAS_ATTRIBUTE(malloc) || \
ferencd@0:     JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \
ferencd@0:     JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
ferencd@0:     JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \
ferencd@0:     JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
ferencd@0:     JSON_HEDLEY_IBM_VERSION_CHECK(12,1,0) || \
ferencd@0:     JSON_HEDLEY_TI_VERSION_CHECK(8,0,0) || \
ferencd@0:     (JSON_HEDLEY_TI_VERSION_CHECK(7,3,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__))
ferencd@0:     #define JSON_HEDLEY_MALLOC __attribute__((__malloc__))
ferencd@0: #elif JSON_HEDLEY_MSVC_VERSION_CHECK(14, 0, 0)
ferencd@0:     #define JSON_HEDLEY_MALLOC __declspec(restrict)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_MALLOC
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_PURE)
ferencd@0:     #undef JSON_HEDLEY_PURE
ferencd@0: #endif
ferencd@0: #if \
ferencd@0:     JSON_HEDLEY_HAS_ATTRIBUTE(pure) || \
ferencd@0:     JSON_HEDLEY_GCC_VERSION_CHECK(2,96,0) || \
ferencd@0:     JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
ferencd@0:     JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \
ferencd@0:     JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
ferencd@0:     JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \
ferencd@0:     JSON_HEDLEY_TI_VERSION_CHECK(8,0,0) || \
ferencd@0:     (JSON_HEDLEY_TI_VERSION_CHECK(7,3,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
ferencd@0:     JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0)
ferencd@0:     #define JSON_HEDLEY_PURE __attribute__((__pure__))
ferencd@0: #elif JSON_HEDLEY_TI_VERSION_CHECK(6,0,0) && defined(__cplusplus)
ferencd@0:     #define JSON_HEDLEY_PURE _Pragma("FUNC_IS_PURE;")
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_PURE
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_CONST)
ferencd@0:     #undef JSON_HEDLEY_CONST
ferencd@0: #endif
ferencd@0: #if \
ferencd@0:     JSON_HEDLEY_HAS_ATTRIBUTE(const) || \
ferencd@0:     JSON_HEDLEY_GCC_VERSION_CHECK(2,5,0) || \
ferencd@0:     JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
ferencd@0:     JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \
ferencd@0:     JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
ferencd@0:     JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \
ferencd@0:     JSON_HEDLEY_TI_VERSION_CHECK(8,0,0) || \
ferencd@0:     (JSON_HEDLEY_TI_VERSION_CHECK(7,3,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__)) || \
ferencd@0:     JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0)
ferencd@0:     #define JSON_HEDLEY_CONST __attribute__((__const__))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_CONST JSON_HEDLEY_PURE
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_RESTRICT)
ferencd@0:     #undef JSON_HEDLEY_RESTRICT
ferencd@0: #endif
ferencd@0: #if defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && !defined(__cplusplus)
ferencd@0:     #define JSON_HEDLEY_RESTRICT restrict
ferencd@0: #elif \
ferencd@0:     JSON_HEDLEY_GCC_VERSION_CHECK(3,1,0) || \
ferencd@0:     JSON_HEDLEY_MSVC_VERSION_CHECK(14,0,0) || \
ferencd@0:     JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
ferencd@0:     JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
ferencd@0:     JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \
ferencd@0:     JSON_HEDLEY_PGI_VERSION_CHECK(17,10,0) || \
ferencd@0:     JSON_HEDLEY_TI_VERSION_CHECK(8,0,0) || \
ferencd@0:     (JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,14,0) && defined(__cplusplus)) || \
ferencd@0:     JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0) || \
ferencd@0:     defined(__clang__)
ferencd@0:     #define JSON_HEDLEY_RESTRICT __restrict
ferencd@0: #elif JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,3,0) && !defined(__cplusplus)
ferencd@0:     #define JSON_HEDLEY_RESTRICT _Restrict
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_RESTRICT
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_INLINE)
ferencd@0:     #undef JSON_HEDLEY_INLINE
ferencd@0: #endif
ferencd@0: #if \
ferencd@0:     (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L)) || \
ferencd@0:     (defined(__cplusplus) && (__cplusplus >= 199711L))
ferencd@0:     #define JSON_HEDLEY_INLINE inline
ferencd@0: #elif \
ferencd@0:     defined(JSON_HEDLEY_GCC_VERSION) || \
ferencd@0:     JSON_HEDLEY_ARM_VERSION_CHECK(6,2,0)
ferencd@0:     #define JSON_HEDLEY_INLINE __inline__
ferencd@0: #elif \
ferencd@0:     JSON_HEDLEY_MSVC_VERSION_CHECK(12,0,0) || \
ferencd@0:     JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
ferencd@0:     JSON_HEDLEY_TI_VERSION_CHECK(8,0,0)
ferencd@0:     #define JSON_HEDLEY_INLINE __inline
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_INLINE
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_ALWAYS_INLINE)
ferencd@0:     #undef JSON_HEDLEY_ALWAYS_INLINE
ferencd@0: #endif
ferencd@0: #if \
ferencd@0:     JSON_HEDLEY_HAS_ATTRIBUTE(always_inline) || \
ferencd@0:     JSON_HEDLEY_GCC_VERSION_CHECK(4,0,0) || \
ferencd@0:     JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
ferencd@0:     JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \
ferencd@0:     JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
ferencd@0:     JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \
ferencd@0:     JSON_HEDLEY_TI_VERSION_CHECK(8,0,0) || \
ferencd@0:     (JSON_HEDLEY_TI_VERSION_CHECK(7,3,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__))
ferencd@0:     #define JSON_HEDLEY_ALWAYS_INLINE __attribute__((__always_inline__)) JSON_HEDLEY_INLINE
ferencd@0: #elif JSON_HEDLEY_MSVC_VERSION_CHECK(12,0,0)
ferencd@0:     #define JSON_HEDLEY_ALWAYS_INLINE __forceinline
ferencd@0: #elif JSON_HEDLEY_TI_VERSION_CHECK(7,0,0) && defined(__cplusplus)
ferencd@0:     #define JSON_HEDLEY_ALWAYS_INLINE _Pragma("FUNC_ALWAYS_INLINE;")
ferencd@0: #elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0)
ferencd@0:     #define JSON_HEDLEY_ALWAYS_INLINE _Pragma("inline=forced")
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_ALWAYS_INLINE JSON_HEDLEY_INLINE
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_NEVER_INLINE)
ferencd@0:     #undef JSON_HEDLEY_NEVER_INLINE
ferencd@0: #endif
ferencd@0: #if \
ferencd@0:     JSON_HEDLEY_HAS_ATTRIBUTE(noinline) || \
ferencd@0:     JSON_HEDLEY_GCC_VERSION_CHECK(4,0,0) || \
ferencd@0:     JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
ferencd@0:     JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \
ferencd@0:     JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
ferencd@0:     JSON_HEDLEY_IBM_VERSION_CHECK(10,1,0) || \
ferencd@0:     JSON_HEDLEY_TI_VERSION_CHECK(8,0,0) || \
ferencd@0:     (JSON_HEDLEY_TI_VERSION_CHECK(7,3,0) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__))
ferencd@0:     #define JSON_HEDLEY_NEVER_INLINE __attribute__((__noinline__))
ferencd@0: #elif JSON_HEDLEY_MSVC_VERSION_CHECK(13,10,0)
ferencd@0:     #define JSON_HEDLEY_NEVER_INLINE __declspec(noinline)
ferencd@0: #elif JSON_HEDLEY_PGI_VERSION_CHECK(10,2,0)
ferencd@0:     #define JSON_HEDLEY_NEVER_INLINE _Pragma("noinline")
ferencd@0: #elif JSON_HEDLEY_TI_VERSION_CHECK(6,0,0) && defined(__cplusplus)
ferencd@0:     #define JSON_HEDLEY_NEVER_INLINE _Pragma("FUNC_CANNOT_INLINE;")
ferencd@0: #elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0)
ferencd@0:     #define JSON_HEDLEY_NEVER_INLINE _Pragma("inline=never")
ferencd@0: #elif JSON_HEDLEY_COMPCERT_VERSION_CHECK(3,2,0)
ferencd@0:     #define JSON_HEDLEY_NEVER_INLINE __attribute((noinline))
ferencd@0: #elif JSON_HEDLEY_PELLES_VERSION_CHECK(9,0,0)
ferencd@0:     #define JSON_HEDLEY_NEVER_INLINE __declspec(noinline)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_NEVER_INLINE
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_PRIVATE)
ferencd@0:     #undef JSON_HEDLEY_PRIVATE
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_PUBLIC)
ferencd@0:     #undef JSON_HEDLEY_PUBLIC
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_IMPORT)
ferencd@0:     #undef JSON_HEDLEY_IMPORT
ferencd@0: #endif
ferencd@0: #if defined(_WIN32) || defined(__CYGWIN__)
ferencd@0:     #define JSON_HEDLEY_PRIVATE
ferencd@0:     #define JSON_HEDLEY_PUBLIC   __declspec(dllexport)
ferencd@0:     #define JSON_HEDLEY_IMPORT   __declspec(dllimport)
ferencd@0: #else
ferencd@0:     #if \
ferencd@0:         JSON_HEDLEY_HAS_ATTRIBUTE(visibility) || \
ferencd@0:         JSON_HEDLEY_GCC_VERSION_CHECK(3,3,0) || \
ferencd@0:         JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,11,0) || \
ferencd@0:         JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
ferencd@0:         JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
ferencd@0:         JSON_HEDLEY_IBM_VERSION_CHECK(13,1,0) || \
ferencd@0:         JSON_HEDLEY_TI_VERSION_CHECK(8,0,0) || \
ferencd@0:         (JSON_HEDLEY_TI_VERSION_CHECK(7,3,0) && defined(__TI_EABI__) && defined(__TI_GNU_ATTRIBUTE_SUPPORT__))
ferencd@0:         #define JSON_HEDLEY_PRIVATE __attribute__((__visibility__("hidden")))
ferencd@0:         #define JSON_HEDLEY_PUBLIC  __attribute__((__visibility__("default")))
ferencd@0:     #else
ferencd@0:         #define JSON_HEDLEY_PRIVATE
ferencd@0:         #define JSON_HEDLEY_PUBLIC
ferencd@0:     #endif
ferencd@0:     #define JSON_HEDLEY_IMPORT    extern
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_NO_THROW)
ferencd@0:     #undef JSON_HEDLEY_NO_THROW
ferencd@0: #endif
ferencd@0: #if \
ferencd@0:     JSON_HEDLEY_HAS_ATTRIBUTE(nothrow) || \
ferencd@0:     JSON_HEDLEY_GCC_VERSION_CHECK(3,3,0) || \
ferencd@0:     JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0)
ferencd@0:     #define JSON_HEDLEY_NO_THROW __attribute__((__nothrow__))
ferencd@0: #elif \
ferencd@0:     JSON_HEDLEY_MSVC_VERSION_CHECK(13,1,0) || \
ferencd@0:     JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0)
ferencd@0:     #define JSON_HEDLEY_NO_THROW __declspec(nothrow)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_NO_THROW
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_FALL_THROUGH)
ferencd@0:     #undef JSON_HEDLEY_FALL_THROUGH
ferencd@0: #endif
ferencd@0: #if \
ferencd@0:     defined(__cplusplus) && \
ferencd@0:     (!defined(JSON_HEDLEY_SUNPRO_VERSION) || JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,15,0)) && \
ferencd@0:     !defined(JSON_HEDLEY_PGI_VERSION)
ferencd@0:     #if \
ferencd@0:         (__cplusplus >= 201703L) || \
ferencd@0:         ((__cplusplus >= 201103L) && JSON_HEDLEY_HAS_CPP_ATTRIBUTE(fallthrough))
ferencd@0:         #define JSON_HEDLEY_FALL_THROUGH [[fallthrough]]
ferencd@0:     #elif (__cplusplus >= 201103L) && JSON_HEDLEY_HAS_CPP_ATTRIBUTE(clang::fallthrough)
ferencd@0:         #define JSON_HEDLEY_FALL_THROUGH [[clang::fallthrough]]
ferencd@0:     #elif (__cplusplus >= 201103L) && JSON_HEDLEY_GCC_VERSION_CHECK(7,0,0)
ferencd@0:         #define JSON_HEDLEY_FALL_THROUGH [[gnu::fallthrough]]
ferencd@0:     #endif
ferencd@0: #endif
ferencd@0: #if !defined(JSON_HEDLEY_FALL_THROUGH)
ferencd@0:     #if JSON_HEDLEY_GNUC_HAS_ATTRIBUTE(fallthrough,7,0,0) && !defined(JSON_HEDLEY_PGI_VERSION)
ferencd@0:         #define JSON_HEDLEY_FALL_THROUGH __attribute__((__fallthrough__))
ferencd@0:     #elif defined(__fallthrough) /* SAL */
ferencd@0:         #define JSON_HEDLEY_FALL_THROUGH __fallthrough
ferencd@0:     #else
ferencd@0:         #define JSON_HEDLEY_FALL_THROUGH
ferencd@0:     #endif
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_RETURNS_NON_NULL)
ferencd@0:     #undef JSON_HEDLEY_RETURNS_NON_NULL
ferencd@0: #endif
ferencd@0: #if \
ferencd@0:     JSON_HEDLEY_HAS_ATTRIBUTE(returns_nonnull) || \
ferencd@0:     JSON_HEDLEY_GCC_VERSION_CHECK(4,9,0)
ferencd@0:     #define JSON_HEDLEY_RETURNS_NON_NULL __attribute__((__returns_nonnull__))
ferencd@0: #elif defined(_Ret_notnull_) /* SAL */
ferencd@0:     #define JSON_HEDLEY_RETURNS_NON_NULL _Ret_notnull_
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_RETURNS_NON_NULL
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_ARRAY_PARAM)
ferencd@0:     #undef JSON_HEDLEY_ARRAY_PARAM
ferencd@0: #endif
ferencd@0: #if \
ferencd@0:     defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) && \
ferencd@0:     !defined(__STDC_NO_VLA__) && \
ferencd@0:     !defined(__cplusplus) && \
ferencd@0:     !defined(JSON_HEDLEY_PGI_VERSION) && \
ferencd@0:     !defined(JSON_HEDLEY_TINYC_VERSION)
ferencd@0:     #define JSON_HEDLEY_ARRAY_PARAM(name) (name)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_ARRAY_PARAM(name)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_IS_CONSTANT)
ferencd@0:     #undef JSON_HEDLEY_IS_CONSTANT
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_REQUIRE_CONSTEXPR)
ferencd@0:     #undef JSON_HEDLEY_REQUIRE_CONSTEXPR
ferencd@0: #endif
ferencd@0: /* Note the double-underscore. For internal use only; no API
ferencd@0:  * guarantees! */
ferencd@0: #if defined(JSON_HEDLEY__IS_CONSTEXPR)
ferencd@0:     #undef JSON_HEDLEY__IS_CONSTEXPR
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if \
ferencd@0:     JSON_HEDLEY_HAS_BUILTIN(__builtin_constant_p) || \
ferencd@0:     JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) || \
ferencd@0:     JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
ferencd@0:     JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,19) || \
ferencd@0:     JSON_HEDLEY_ARM_VERSION_CHECK(4,1,0) || \
ferencd@0:     JSON_HEDLEY_IBM_VERSION_CHECK(13,1,0) || \
ferencd@0:     JSON_HEDLEY_TI_VERSION_CHECK(6,1,0) || \
ferencd@0:     JSON_HEDLEY_SUNPRO_VERSION_CHECK(5,10,0) || \
ferencd@0:     JSON_HEDLEY_CRAY_VERSION_CHECK(8,1,0)
ferencd@0:     #define JSON_HEDLEY_IS_CONSTANT(expr) __builtin_constant_p(expr)
ferencd@0: #endif
ferencd@0: #if !defined(__cplusplus)
ferencd@0: #  if \
ferencd@0:        JSON_HEDLEY_HAS_BUILTIN(__builtin_types_compatible_p) || \
ferencd@0:        JSON_HEDLEY_GCC_VERSION_CHECK(3,4,0) || \
ferencd@0:        JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
ferencd@0:        JSON_HEDLEY_IBM_VERSION_CHECK(13,1,0) || \
ferencd@0:        JSON_HEDLEY_CRAY_VERSION_CHECK(8,1,0) || \
ferencd@0:        JSON_HEDLEY_ARM_VERSION_CHECK(5,4,0) || \
ferencd@0:        JSON_HEDLEY_TINYC_VERSION_CHECK(0,9,24)
ferencd@0: #if defined(__INTPTR_TYPE__)
ferencd@0:     #define JSON_HEDLEY__IS_CONSTEXPR(expr) __builtin_types_compatible_p(__typeof__((1 ? (void*) ((__INTPTR_TYPE__) ((expr) * 0)) : (int*) 0)), int*)
ferencd@0: #else
ferencd@0:     #include <stdint.h>
ferencd@0:     #define JSON_HEDLEY__IS_CONSTEXPR(expr) __builtin_types_compatible_p(__typeof__((1 ? (void*) ((intptr_t) ((expr) * 0)) : (int*) 0)), int*)
ferencd@0: #endif
ferencd@0: #  elif \
ferencd@0:        (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L) && !defined(JSON_HEDLEY_SUNPRO_VERSION) && !defined(JSON_HEDLEY_PGI_VERSION)) || \
ferencd@0:        JSON_HEDLEY_HAS_EXTENSION(c_generic_selections) || \
ferencd@0:        JSON_HEDLEY_GCC_VERSION_CHECK(4,9,0) || \
ferencd@0:        JSON_HEDLEY_INTEL_VERSION_CHECK(17,0,0) || \
ferencd@0:        JSON_HEDLEY_IBM_VERSION_CHECK(12,1,0) || \
ferencd@0:        JSON_HEDLEY_ARM_VERSION_CHECK(5,3,0)
ferencd@0: #if defined(__INTPTR_TYPE__)
ferencd@0:     #define JSON_HEDLEY__IS_CONSTEXPR(expr) _Generic((1 ? (void*) ((__INTPTR_TYPE__) ((expr) * 0)) : (int*) 0), int*: 1, void*: 0)
ferencd@0: #else
ferencd@0:     #include <stdint.h>
ferencd@0:     #define JSON_HEDLEY__IS_CONSTEXPR(expr) _Generic((1 ? (void*) ((intptr_t) * 0) : (int*) 0), int*: 1, void*: 0)
ferencd@0: #endif
ferencd@0: #  elif \
ferencd@0:        defined(JSON_HEDLEY_GCC_VERSION) || \
ferencd@0:        defined(JSON_HEDLEY_INTEL_VERSION) || \
ferencd@0:        defined(JSON_HEDLEY_TINYC_VERSION) || \
ferencd@0:        defined(JSON_HEDLEY_TI_VERSION) || \
ferencd@0:        defined(__clang__)
ferencd@0: #    define JSON_HEDLEY__IS_CONSTEXPR(expr) ( \
ferencd@0:         sizeof(void) != \
ferencd@0:         sizeof(*( \
ferencd@0:                   1 ? \
ferencd@0:                   ((void*) ((expr) * 0L) ) : \
ferencd@0: ((struct { char v[sizeof(void) * 2]; } *) 1) \
ferencd@0:                 ) \
ferencd@0:               ) \
ferencd@0:                                             )
ferencd@0: #  endif
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY__IS_CONSTEXPR)
ferencd@0:     #if !defined(JSON_HEDLEY_IS_CONSTANT)
ferencd@0:         #define JSON_HEDLEY_IS_CONSTANT(expr) JSON_HEDLEY__IS_CONSTEXPR(expr)
ferencd@0:     #endif
ferencd@0:     #define JSON_HEDLEY_REQUIRE_CONSTEXPR(expr) (JSON_HEDLEY__IS_CONSTEXPR(expr) ? (expr) : (-1))
ferencd@0: #else
ferencd@0:     #if !defined(JSON_HEDLEY_IS_CONSTANT)
ferencd@0:         #define JSON_HEDLEY_IS_CONSTANT(expr) (0)
ferencd@0:     #endif
ferencd@0:     #define JSON_HEDLEY_REQUIRE_CONSTEXPR(expr) (expr)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_BEGIN_C_DECLS)
ferencd@0:     #undef JSON_HEDLEY_BEGIN_C_DECLS
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_END_C_DECLS)
ferencd@0:     #undef JSON_HEDLEY_END_C_DECLS
ferencd@0: #endif
ferencd@0: #if defined(JSON_HEDLEY_C_DECL)
ferencd@0:     #undef JSON_HEDLEY_C_DECL
ferencd@0: #endif
ferencd@0: #if defined(__cplusplus)
ferencd@0:     #define JSON_HEDLEY_BEGIN_C_DECLS extern "C" {
ferencd@0:     #define JSON_HEDLEY_END_C_DECLS }
ferencd@0:     #define JSON_HEDLEY_C_DECL extern "C"
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_BEGIN_C_DECLS
ferencd@0:     #define JSON_HEDLEY_END_C_DECLS
ferencd@0:     #define JSON_HEDLEY_C_DECL
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_STATIC_ASSERT)
ferencd@0:     #undef JSON_HEDLEY_STATIC_ASSERT
ferencd@0: #endif
ferencd@0: #if \
ferencd@0:   !defined(__cplusplus) && ( \
ferencd@0:       (defined(__STDC_VERSION__) && (__STDC_VERSION__ >= 201112L)) || \
ferencd@0:       JSON_HEDLEY_HAS_FEATURE(c_static_assert) || \
ferencd@0:       JSON_HEDLEY_GCC_VERSION_CHECK(6,0,0) || \
ferencd@0:       JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0) || \
ferencd@0:       defined(_Static_assert) \
ferencd@0:     )
ferencd@0: #  define JSON_HEDLEY_STATIC_ASSERT(expr, message) _Static_assert(expr, message)
ferencd@0: #elif \
ferencd@0:   (defined(__cplusplus) && (__cplusplus >= 201703L)) || \
ferencd@0:   JSON_HEDLEY_MSVC_VERSION_CHECK(16,0,0) || \
ferencd@0:   (defined(__cplusplus) && JSON_HEDLEY_TI_VERSION_CHECK(8,3,0))
ferencd@0: #  define JSON_HEDLEY_STATIC_ASSERT(expr, message) static_assert(expr, message)
ferencd@0: #elif defined(__cplusplus) && (__cplusplus >= 201103L)
ferencd@0: #  define JSON_HEDLEY_STATIC_ASSERT(expr, message) static_assert(expr)
ferencd@0: #else
ferencd@0: #  define JSON_HEDLEY_STATIC_ASSERT(expr, message)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_CONST_CAST)
ferencd@0:     #undef JSON_HEDLEY_CONST_CAST
ferencd@0: #endif
ferencd@0: #if defined(__cplusplus)
ferencd@0: #  define JSON_HEDLEY_CONST_CAST(T, expr) (const_cast<T>(expr))
ferencd@0: #elif \
ferencd@0:   JSON_HEDLEY_HAS_WARNING("-Wcast-qual") || \
ferencd@0:   JSON_HEDLEY_GCC_VERSION_CHECK(4,6,0) || \
ferencd@0:   JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0)
ferencd@0: #  define JSON_HEDLEY_CONST_CAST(T, expr) (__extension__ ({ \
ferencd@0:         JSON_HEDLEY_DIAGNOSTIC_PUSH \
ferencd@0:         JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL \
ferencd@0:         ((T) (expr)); \
ferencd@0:         JSON_HEDLEY_DIAGNOSTIC_POP \
ferencd@0:     }))
ferencd@0: #else
ferencd@0: #  define JSON_HEDLEY_CONST_CAST(T, expr) ((T) (expr))
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_REINTERPRET_CAST)
ferencd@0:     #undef JSON_HEDLEY_REINTERPRET_CAST
ferencd@0: #endif
ferencd@0: #if defined(__cplusplus)
ferencd@0:     #define JSON_HEDLEY_REINTERPRET_CAST(T, expr) (reinterpret_cast<T>(expr))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_REINTERPRET_CAST(T, expr) (*((T*) &(expr)))
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_STATIC_CAST)
ferencd@0:     #undef JSON_HEDLEY_STATIC_CAST
ferencd@0: #endif
ferencd@0: #if defined(__cplusplus)
ferencd@0:     #define JSON_HEDLEY_STATIC_CAST(T, expr) (static_cast<T>(expr))
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_STATIC_CAST(T, expr) ((T) (expr))
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_CPP_CAST)
ferencd@0:     #undef JSON_HEDLEY_CPP_CAST
ferencd@0: #endif
ferencd@0: #if defined(__cplusplus)
ferencd@0:     #define JSON_HEDLEY_CPP_CAST(T, expr) static_cast<T>(expr)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_CPP_CAST(T, expr) (expr)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_MESSAGE)
ferencd@0:     #undef JSON_HEDLEY_MESSAGE
ferencd@0: #endif
ferencd@0: #if JSON_HEDLEY_HAS_WARNING("-Wunknown-pragmas")
ferencd@0: #  define JSON_HEDLEY_MESSAGE(msg) \
ferencd@0:     JSON_HEDLEY_DIAGNOSTIC_PUSH \
ferencd@0:     JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS \
ferencd@0:     JSON_HEDLEY_PRAGMA(message msg) \
ferencd@0:     JSON_HEDLEY_DIAGNOSTIC_POP
ferencd@0: #elif \
ferencd@0:   JSON_HEDLEY_GCC_VERSION_CHECK(4,4,0) || \
ferencd@0:   JSON_HEDLEY_INTEL_VERSION_CHECK(13,0,0)
ferencd@0: #  define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(message msg)
ferencd@0: #elif JSON_HEDLEY_CRAY_VERSION_CHECK(5,0,0)
ferencd@0: #  define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(_CRI message msg)
ferencd@0: #elif JSON_HEDLEY_IAR_VERSION_CHECK(8,0,0)
ferencd@0: #  define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(message(msg))
ferencd@0: #elif JSON_HEDLEY_PELLES_VERSION_CHECK(2,0,0)
ferencd@0: #  define JSON_HEDLEY_MESSAGE(msg) JSON_HEDLEY_PRAGMA(message(msg))
ferencd@0: #else
ferencd@0: #  define JSON_HEDLEY_MESSAGE(msg)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_WARNING)
ferencd@0:     #undef JSON_HEDLEY_WARNING
ferencd@0: #endif
ferencd@0: #if JSON_HEDLEY_HAS_WARNING("-Wunknown-pragmas")
ferencd@0: #  define JSON_HEDLEY_WARNING(msg) \
ferencd@0:     JSON_HEDLEY_DIAGNOSTIC_PUSH \
ferencd@0:     JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS \
ferencd@0:     JSON_HEDLEY_PRAGMA(clang warning msg) \
ferencd@0:     JSON_HEDLEY_DIAGNOSTIC_POP
ferencd@0: #elif \
ferencd@0:   JSON_HEDLEY_GCC_VERSION_CHECK(4,8,0) || \
ferencd@0:   JSON_HEDLEY_PGI_VERSION_CHECK(18,4,0)
ferencd@0: #  define JSON_HEDLEY_WARNING(msg) JSON_HEDLEY_PRAGMA(GCC warning msg)
ferencd@0: #elif JSON_HEDLEY_MSVC_VERSION_CHECK(15,0,0)
ferencd@0: #  define JSON_HEDLEY_WARNING(msg) JSON_HEDLEY_PRAGMA(message(msg))
ferencd@0: #else
ferencd@0: #  define JSON_HEDLEY_WARNING(msg) JSON_HEDLEY_MESSAGE(msg)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_REQUIRE_MSG)
ferencd@0:     #undef JSON_HEDLEY_REQUIRE_MSG
ferencd@0: #endif
ferencd@0: #if JSON_HEDLEY_HAS_ATTRIBUTE(diagnose_if)
ferencd@0: #  if JSON_HEDLEY_HAS_WARNING("-Wgcc-compat")
ferencd@0: #    define JSON_HEDLEY_REQUIRE_MSG(expr, msg) \
ferencd@0:     JSON_HEDLEY_DIAGNOSTIC_PUSH \
ferencd@0:     _Pragma("clang diagnostic ignored \"-Wgcc-compat\"") \
ferencd@0:     __attribute__((__diagnose_if__(!(expr), msg, "error"))) \
ferencd@0:     JSON_HEDLEY_DIAGNOSTIC_POP
ferencd@0: #  else
ferencd@0: #    define JSON_HEDLEY_REQUIRE_MSG(expr, msg) __attribute__((__diagnose_if__(!(expr), msg, "error")))
ferencd@0: #  endif
ferencd@0: #else
ferencd@0: #  define JSON_HEDLEY_REQUIRE_MSG(expr, msg)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_REQUIRE)
ferencd@0:     #undef JSON_HEDLEY_REQUIRE
ferencd@0: #endif
ferencd@0: #define JSON_HEDLEY_REQUIRE(expr) JSON_HEDLEY_REQUIRE_MSG(expr, #expr)
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_FLAGS)
ferencd@0:     #undef JSON_HEDLEY_FLAGS
ferencd@0: #endif
ferencd@0: #if JSON_HEDLEY_HAS_ATTRIBUTE(flag_enum)
ferencd@0:     #define JSON_HEDLEY_FLAGS __attribute__((__flag_enum__))
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_FLAGS_CAST)
ferencd@0:     #undef JSON_HEDLEY_FLAGS_CAST
ferencd@0: #endif
ferencd@0: #if JSON_HEDLEY_INTEL_VERSION_CHECK(19,0,0)
ferencd@0: #  define JSON_HEDLEY_FLAGS_CAST(T, expr) (__extension__ ({ \
ferencd@0:         JSON_HEDLEY_DIAGNOSTIC_PUSH \
ferencd@0:         _Pragma("warning(disable:188)") \
ferencd@0:         ((T) (expr)); \
ferencd@0:         JSON_HEDLEY_DIAGNOSTIC_POP \
ferencd@0:     }))
ferencd@0: #else
ferencd@0: #  define JSON_HEDLEY_FLAGS_CAST(T, expr) JSON_HEDLEY_STATIC_CAST(T, expr)
ferencd@0: #endif
ferencd@0: 
ferencd@0: /* Remaining macros are deprecated. */
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK)
ferencd@0:     #undef JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK
ferencd@0: #endif
ferencd@0: #if defined(__clang__)
ferencd@0:     #define JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(major,minor,patch) (0)
ferencd@0: #else
ferencd@0:     #define JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK(major,minor,patch) JSON_HEDLEY_GCC_VERSION_CHECK(major,minor,patch)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_CLANG_HAS_ATTRIBUTE)
ferencd@0:     #undef JSON_HEDLEY_CLANG_HAS_ATTRIBUTE
ferencd@0: #endif
ferencd@0: #define JSON_HEDLEY_CLANG_HAS_ATTRIBUTE(attribute) JSON_HEDLEY_HAS_ATTRIBUTE(attribute)
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE)
ferencd@0:     #undef JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE
ferencd@0: #endif
ferencd@0: #define JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE(attribute) JSON_HEDLEY_HAS_CPP_ATTRIBUTE(attribute)
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_CLANG_HAS_BUILTIN)
ferencd@0:     #undef JSON_HEDLEY_CLANG_HAS_BUILTIN
ferencd@0: #endif
ferencd@0: #define JSON_HEDLEY_CLANG_HAS_BUILTIN(builtin) JSON_HEDLEY_HAS_BUILTIN(builtin)
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_CLANG_HAS_FEATURE)
ferencd@0:     #undef JSON_HEDLEY_CLANG_HAS_FEATURE
ferencd@0: #endif
ferencd@0: #define JSON_HEDLEY_CLANG_HAS_FEATURE(feature) JSON_HEDLEY_HAS_FEATURE(feature)
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_CLANG_HAS_EXTENSION)
ferencd@0:     #undef JSON_HEDLEY_CLANG_HAS_EXTENSION
ferencd@0: #endif
ferencd@0: #define JSON_HEDLEY_CLANG_HAS_EXTENSION(extension) JSON_HEDLEY_HAS_EXTENSION(extension)
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_CLANG_HAS_DECLSPEC_DECLSPEC_ATTRIBUTE)
ferencd@0:     #undef JSON_HEDLEY_CLANG_HAS_DECLSPEC_DECLSPEC_ATTRIBUTE
ferencd@0: #endif
ferencd@0: #define JSON_HEDLEY_CLANG_HAS_DECLSPEC_ATTRIBUTE(attribute) JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE(attribute)
ferencd@0: 
ferencd@0: #if defined(JSON_HEDLEY_CLANG_HAS_WARNING)
ferencd@0:     #undef JSON_HEDLEY_CLANG_HAS_WARNING
ferencd@0: #endif
ferencd@0: #define JSON_HEDLEY_CLANG_HAS_WARNING(warning) JSON_HEDLEY_HAS_WARNING(warning)
ferencd@0: 
ferencd@0: #endif /* !defined(JSON_HEDLEY_VERSION) || (JSON_HEDLEY_VERSION < X) */
ferencd@0: 
ferencd@0: 
ferencd@0: // This file contains all internal macro definitions
ferencd@0: // You MUST include macro_unscope.hpp at the end of json.hpp to undef all of them
ferencd@0: 
ferencd@0: // exclude unsupported compilers
ferencd@0: #if !defined(JSON_SKIP_UNSUPPORTED_COMPILER_CHECK)
ferencd@0:     #if defined(__clang__)
ferencd@0:         #if (__clang_major__ * 10000 + __clang_minor__ * 100 + __clang_patchlevel__) < 30400
ferencd@0:             #error "unsupported Clang version - see https://github.com/nlohmann/json#supported-compilers"
ferencd@0:         #endif
ferencd@0:     #elif defined(__GNUC__) && !(defined(__ICC) || defined(__INTEL_COMPILER))
ferencd@0:         #if (__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__) < 40800
ferencd@0:             #error "unsupported GCC version - see https://github.com/nlohmann/json#supported-compilers"
ferencd@0:         #endif
ferencd@0:     #endif
ferencd@0: #endif
ferencd@0: 
ferencd@0: // C++ language standard detection
ferencd@0: #if (defined(__cplusplus) && __cplusplus >= 201703L) || (defined(_HAS_CXX17) && _HAS_CXX17 == 1) // fix for issue #464
ferencd@0:     #define JSON_HAS_CPP_17
ferencd@0:     #define JSON_HAS_CPP_14
ferencd@0: #elif (defined(__cplusplus) && __cplusplus >= 201402L) || (defined(_HAS_CXX14) && _HAS_CXX14 == 1)
ferencd@0:     #define JSON_HAS_CPP_14
ferencd@0: #endif
ferencd@0: 
ferencd@0: // disable float-equal warnings on GCC/clang
ferencd@0: #if defined(__clang__) || defined(__GNUC__) || defined(__GNUG__)
ferencd@0:     #pragma GCC diagnostic push
ferencd@0:     #pragma GCC diagnostic ignored "-Wfloat-equal"
ferencd@0: #endif
ferencd@0: 
ferencd@0: // disable documentation warnings on clang
ferencd@0: #if defined(__clang__)
ferencd@0:     #pragma GCC diagnostic push
ferencd@0:     #pragma GCC diagnostic ignored "-Wdocumentation"
ferencd@0: #endif
ferencd@0: 
ferencd@0: // allow to disable exceptions
ferencd@0: #if (defined(__cpp_exceptions) || defined(__EXCEPTIONS) || defined(_CPPUNWIND)) && !defined(JSON_NOEXCEPTION)
ferencd@0:     #define JSON_THROW(exception) throw exception
ferencd@0:     #define JSON_TRY try
ferencd@0:     #define JSON_CATCH(exception) catch(exception)
ferencd@0:     #define JSON_INTERNAL_CATCH(exception) catch(exception)
ferencd@0: #else
ferencd@0:     #include <cstdlib>
ferencd@0:     #define JSON_THROW(exception) std::abort()
ferencd@0:     #define JSON_TRY if(true)
ferencd@0:     #define JSON_CATCH(exception) if(false)
ferencd@0:     #define JSON_INTERNAL_CATCH(exception) if(false)
ferencd@0: #endif
ferencd@0: 
ferencd@0: // override exception macros
ferencd@0: #if defined(JSON_THROW_USER)
ferencd@0:     #undef JSON_THROW
ferencd@0:     #define JSON_THROW JSON_THROW_USER
ferencd@0: #endif
ferencd@0: #if defined(JSON_TRY_USER)
ferencd@0:     #undef JSON_TRY
ferencd@0:     #define JSON_TRY JSON_TRY_USER
ferencd@0: #endif
ferencd@0: #if defined(JSON_CATCH_USER)
ferencd@0:     #undef JSON_CATCH
ferencd@0:     #define JSON_CATCH JSON_CATCH_USER
ferencd@0:     #undef JSON_INTERNAL_CATCH
ferencd@0:     #define JSON_INTERNAL_CATCH JSON_CATCH_USER
ferencd@0: #endif
ferencd@0: #if defined(JSON_INTERNAL_CATCH_USER)
ferencd@0:     #undef JSON_INTERNAL_CATCH
ferencd@0:     #define JSON_INTERNAL_CATCH JSON_INTERNAL_CATCH_USER
ferencd@0: #endif
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief macro to briefly define a mapping between an enum and JSON
ferencd@0: @def NLOHMANN_JSON_SERIALIZE_ENUM
ferencd@0: @since version 3.4.0
ferencd@0: */
ferencd@0: #define NLOHMANN_JSON_SERIALIZE_ENUM(ENUM_TYPE, ...)                                           \
ferencd@0:     template<typename BasicJsonType>                                                           \
ferencd@0:     inline void to_json(BasicJsonType& j, const ENUM_TYPE& e)                                  \
ferencd@0:     {                                                                                          \
ferencd@0:         static_assert(std::is_enum<ENUM_TYPE>::value, #ENUM_TYPE " must be an enum!");         \
ferencd@0:         static const std::pair<ENUM_TYPE, BasicJsonType> m[] = __VA_ARGS__;                    \
ferencd@0:         auto it = std::find_if(std::begin(m), std::end(m),                                     \
ferencd@0:                                [e](const std::pair<ENUM_TYPE, BasicJsonType>& ej_pair) -> bool \
ferencd@0:         {                                                                                      \
ferencd@0:             return ej_pair.first == e;                                                         \
ferencd@0:         });                                                                                    \
ferencd@0:         j = ((it != std::end(m)) ? it : std::begin(m))->second;                                \
ferencd@0:     }                                                                                          \
ferencd@0:     template<typename BasicJsonType>                                                           \
ferencd@0:     inline void from_json(const BasicJsonType& j, ENUM_TYPE& e)                                \
ferencd@0:     {                                                                                          \
ferencd@0:         static_assert(std::is_enum<ENUM_TYPE>::value, #ENUM_TYPE " must be an enum!");         \
ferencd@0:         static const std::pair<ENUM_TYPE, BasicJsonType> m[] = __VA_ARGS__;                    \
ferencd@0:         auto it = std::find_if(std::begin(m), std::end(m),                                     \
ferencd@0:                                [j](const std::pair<ENUM_TYPE, BasicJsonType>& ej_pair) -> bool \
ferencd@0:         {                                                                                      \
ferencd@0:             return ej_pair.second == j;                                                        \
ferencd@0:         });                                                                                    \
ferencd@0:         e = ((it != std::end(m)) ? it : std::begin(m))->first;                                 \
ferencd@0:     }
ferencd@0: 
ferencd@0: // Ugly macros to avoid uglier copy-paste when specializing basic_json. They
ferencd@0: // may be removed in the future once the class is split.
ferencd@0: 
ferencd@0: #define NLOHMANN_BASIC_JSON_TPL_DECLARATION                                \
ferencd@0:     template<template<typename, typename, typename...> class ObjectType,   \
ferencd@0:              template<typename, typename...> class ArrayType,              \
ferencd@0:              class StringType, class BooleanType, class NumberIntegerType, \
ferencd@0:              class NumberUnsignedType, class NumberFloatType,              \
ferencd@0:              template<typename> class AllocatorType,                       \
ferencd@0:              template<typename, typename = void> class JSONSerializer>
ferencd@0: 
ferencd@0: #define NLOHMANN_BASIC_JSON_TPL                                            \
ferencd@0:     basic_json<ObjectType, ArrayType, StringType, BooleanType,             \
ferencd@0:     NumberIntegerType, NumberUnsignedType, NumberFloatType,                \
ferencd@0:     AllocatorType, JSONSerializer>
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: ////////////////
ferencd@0: // exceptions //
ferencd@0: ////////////////
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief general exception of the @ref basic_json class
ferencd@0: 
ferencd@0: This class is an extension of `std::exception` objects with a member @a id for
ferencd@0: exception ids. It is used as the base class for all exceptions thrown by the
ferencd@0: @ref basic_json class. This class can hence be used as "wildcard" to catch
ferencd@0: exceptions.
ferencd@0: 
ferencd@0: Subclasses:
ferencd@0: - @ref parse_error for exceptions indicating a parse error
ferencd@0: - @ref invalid_iterator for exceptions indicating errors with iterators
ferencd@0: - @ref type_error for exceptions indicating executing a member function with
ferencd@0:                   a wrong type
ferencd@0: - @ref out_of_range for exceptions indicating access out of the defined range
ferencd@0: - @ref other_error for exceptions indicating other library errors
ferencd@0: 
ferencd@0: @internal
ferencd@0: @note To have nothrow-copy-constructible exceptions, we internally use
ferencd@0:       `std::runtime_error` which can cope with arbitrary-length error messages.
ferencd@0:       Intermediate strings are built with static functions and then passed to
ferencd@0:       the actual constructor.
ferencd@0: @endinternal
ferencd@0: 
ferencd@0: @liveexample{The following code shows how arbitrary library exceptions can be
ferencd@0: caught.,exception}
ferencd@0: 
ferencd@0: @since version 3.0.0
ferencd@0: */
ferencd@0: class exception : public std::exception
ferencd@0: {
ferencd@0:   public:
ferencd@0:     /// returns the explanatory string
ferencd@0:     JSON_HEDLEY_RETURNS_NON_NULL
ferencd@0:     const char* what() const noexcept override
ferencd@0:     {
ferencd@0:         return m.what();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// the id of the exception
ferencd@0:     const int id;
ferencd@0: 
ferencd@0:   protected:
ferencd@0:     JSON_HEDLEY_NON_NULL(3)
ferencd@0:     exception(int id_, const char* what_arg) : id(id_), m(what_arg) {}
ferencd@0: 
ferencd@0:     static std::string name(const std::string& ename, int id_)
ferencd@0:     {
ferencd@0:         return "[json.exception." + ename + "." + std::to_string(id_) + "] ";
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     /// an exception object as storage for error messages
ferencd@0:     std::runtime_error m;
ferencd@0: };
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief exception indicating a parse error
ferencd@0: 
ferencd@0: This exception is thrown by the library when a parse error occurs. Parse errors
ferencd@0: can occur during the deserialization of JSON text, CBOR, MessagePack, as well
ferencd@0: as when using JSON Patch.
ferencd@0: 
ferencd@0: Member @a byte holds the byte index of the last read character in the input
ferencd@0: file.
ferencd@0: 
ferencd@0: Exceptions have ids 1xx.
ferencd@0: 
ferencd@0: name / id                      | example message | description
ferencd@0: ------------------------------ | --------------- | -------------------------
ferencd@0: json.exception.parse_error.101 | parse error at 2: unexpected end of input; expected string literal | This error indicates a syntax error while deserializing a JSON text. The error message describes that an unexpected token (character) was encountered, and the member @a byte indicates the error position.
ferencd@0: json.exception.parse_error.102 | parse error at 14: missing or wrong low surrogate | JSON uses the `\uxxxx` format to describe Unicode characters. Code points above above 0xFFFF are split into two `\uxxxx` entries ("surrogate pairs"). This error indicates that the surrogate pair is incomplete or contains an invalid code point.
ferencd@0: json.exception.parse_error.103 | parse error: code points above 0x10FFFF are invalid | Unicode supports code points up to 0x10FFFF. Code points above 0x10FFFF are invalid.
ferencd@0: json.exception.parse_error.104 | parse error: JSON patch must be an array of objects | [RFC 6902](https://tools.ietf.org/html/rfc6902) requires a JSON Patch document to be a JSON document that represents an array of objects.
ferencd@0: json.exception.parse_error.105 | parse error: operation must have string member 'op' | An operation of a JSON Patch document must contain exactly one "op" member, whose value indicates the operation to perform. Its value must be one of "add", "remove", "replace", "move", "copy", or "test"; other values are errors.
ferencd@0: json.exception.parse_error.106 | parse error: array index '01' must not begin with '0' | An array index in a JSON Pointer ([RFC 6901](https://tools.ietf.org/html/rfc6901)) may be `0` or any number without a leading `0`.
ferencd@0: json.exception.parse_error.107 | parse error: JSON pointer must be empty or begin with '/' - was: 'foo' | A JSON Pointer must be a Unicode string containing a sequence of zero or more reference tokens, each prefixed by a `/` character.
ferencd@0: json.exception.parse_error.108 | parse error: escape character '~' must be followed with '0' or '1' | In a JSON Pointer, only `~0` and `~1` are valid escape sequences.
ferencd@0: json.exception.parse_error.109 | parse error: array index 'one' is not a number | A JSON Pointer array index must be a number.
ferencd@0: json.exception.parse_error.110 | parse error at 1: cannot read 2 bytes from vector | When parsing CBOR or MessagePack, the byte vector ends before the complete value has been read.
ferencd@0: json.exception.parse_error.112 | parse error at 1: error reading CBOR; last byte: 0xF8 | Not all types of CBOR or MessagePack are supported. This exception occurs if an unsupported byte was read.
ferencd@0: json.exception.parse_error.113 | parse error at 2: expected a CBOR string; last byte: 0x98 | While parsing a map key, a value that is not a string has been read.
ferencd@0: json.exception.parse_error.114 | parse error: Unsupported BSON record type 0x0F | The parsing of the corresponding BSON record type is not implemented (yet).
ferencd@0: 
ferencd@0: @note For an input with n bytes, 1 is the index of the first character and n+1
ferencd@0:       is the index of the terminating null byte or the end of file. This also
ferencd@0:       holds true when reading a byte vector (CBOR or MessagePack).
ferencd@0: 
ferencd@0: @liveexample{The following code shows how a `parse_error` exception can be
ferencd@0: caught.,parse_error}
ferencd@0: 
ferencd@0: @sa - @ref exception for the base class of the library exceptions
ferencd@0: @sa - @ref invalid_iterator for exceptions indicating errors with iterators
ferencd@0: @sa - @ref type_error for exceptions indicating executing a member function with
ferencd@0:                     a wrong type
ferencd@0: @sa - @ref out_of_range for exceptions indicating access out of the defined range
ferencd@0: @sa - @ref other_error for exceptions indicating other library errors
ferencd@0: 
ferencd@0: @since version 3.0.0
ferencd@0: */
ferencd@0: class parse_error : public exception
ferencd@0: {
ferencd@0:   public:
ferencd@0:     /*!
ferencd@0:     @brief create a parse error exception
ferencd@0:     @param[in] id_       the id of the exception
ferencd@0:     @param[in] pos       the position where the error occurred (or with
ferencd@0:                          chars_read_total=0 if the position cannot be
ferencd@0:                          determined)
ferencd@0:     @param[in] what_arg  the explanatory string
ferencd@0:     @return parse_error object
ferencd@0:     */
ferencd@0:     static parse_error create(int id_, const position_t& pos, const std::string& what_arg)
ferencd@0:     {
ferencd@0:         std::string w = exception::name("parse_error", id_) + "parse error" +
ferencd@0:                         position_string(pos) + ": " + what_arg;
ferencd@0:         return parse_error(id_, pos.chars_read_total, w.c_str());
ferencd@0:     }
ferencd@0: 
ferencd@0:     static parse_error create(int id_, std::size_t byte_, const std::string& what_arg)
ferencd@0:     {
ferencd@0:         std::string w = exception::name("parse_error", id_) + "parse error" +
ferencd@0:                         (byte_ != 0 ? (" at byte " + std::to_string(byte_)) : "") +
ferencd@0:                         ": " + what_arg;
ferencd@0:         return parse_error(id_, byte_, w.c_str());
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief byte index of the parse error
ferencd@0: 
ferencd@0:     The byte index of the last read character in the input file.
ferencd@0: 
ferencd@0:     @note For an input with n bytes, 1 is the index of the first character and
ferencd@0:           n+1 is the index of the terminating null byte or the end of file.
ferencd@0:           This also holds true when reading a byte vector (CBOR or MessagePack).
ferencd@0:     */
ferencd@0:     const std::size_t byte;
ferencd@0: 
ferencd@0:   private:
ferencd@0:     parse_error(int id_, std::size_t byte_, const char* what_arg)
ferencd@0:         : exception(id_, what_arg), byte(byte_) {}
ferencd@0: 
ferencd@0:     static std::string position_string(const position_t& pos)
ferencd@0:     {
ferencd@0:         return " at line " + std::to_string(pos.lines_read + 1) +
ferencd@0:                ", column " + std::to_string(pos.chars_read_current_line);
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief exception indicating errors with iterators
ferencd@0: 
ferencd@0: This exception is thrown if iterators passed to a library function do not match
ferencd@0: the expected semantics.
ferencd@0: 
ferencd@0: Exceptions have ids 2xx.
ferencd@0: 
ferencd@0: name / id                           | example message | description
ferencd@0: ----------------------------------- | --------------- | -------------------------
ferencd@0: json.exception.invalid_iterator.201 | iterators are not compatible | The iterators passed to constructor @ref basic_json(InputIT first, InputIT last) are not compatible, meaning they do not belong to the same container. Therefore, the range (@a first, @a last) is invalid.
ferencd@0: json.exception.invalid_iterator.202 | iterator does not fit current value | In an erase or insert function, the passed iterator @a pos does not belong to the JSON value for which the function was called. It hence does not define a valid position for the deletion/insertion.
ferencd@0: json.exception.invalid_iterator.203 | iterators do not fit current value | Either iterator passed to function @ref erase(IteratorType first, IteratorType last) does not belong to the JSON value from which values shall be erased. It hence does not define a valid range to delete values from.
ferencd@0: json.exception.invalid_iterator.204 | iterators out of range | When an iterator range for a primitive type (number, boolean, or string) is passed to a constructor or an erase function, this range has to be exactly (@ref begin(), @ref end()), because this is the only way the single stored value is expressed. All other ranges are invalid.
ferencd@0: json.exception.invalid_iterator.205 | iterator out of range | When an iterator for a primitive type (number, boolean, or string) is passed to an erase function, the iterator has to be the @ref begin() iterator, because it is the only way to address the stored value. All other iterators are invalid.
ferencd@0: json.exception.invalid_iterator.206 | cannot construct with iterators from null | The iterators passed to constructor @ref basic_json(InputIT first, InputIT last) belong to a JSON null value and hence to not define a valid range.
ferencd@0: json.exception.invalid_iterator.207 | cannot use key() for non-object iterators | The key() member function can only be used on iterators belonging to a JSON object, because other types do not have a concept of a key.
ferencd@0: json.exception.invalid_iterator.208 | cannot use operator[] for object iterators | The operator[] to specify a concrete offset cannot be used on iterators belonging to a JSON object, because JSON objects are unordered.
ferencd@0: json.exception.invalid_iterator.209 | cannot use offsets with object iterators | The offset operators (+, -, +=, -=) cannot be used on iterators belonging to a JSON object, because JSON objects are unordered.
ferencd@0: json.exception.invalid_iterator.210 | iterators do not fit | The iterator range passed to the insert function are not compatible, meaning they do not belong to the same container. Therefore, the range (@a first, @a last) is invalid.
ferencd@0: json.exception.invalid_iterator.211 | passed iterators may not belong to container | The iterator range passed to the insert function must not be a subrange of the container to insert to.
ferencd@0: json.exception.invalid_iterator.212 | cannot compare iterators of different containers | When two iterators are compared, they must belong to the same container.
ferencd@0: json.exception.invalid_iterator.213 | cannot compare order of object iterators | The order of object iterators cannot be compared, because JSON objects are unordered.
ferencd@0: json.exception.invalid_iterator.214 | cannot get value | Cannot get value for iterator: Either the iterator belongs to a null value or it is an iterator to a primitive type (number, boolean, or string), but the iterator is different to @ref begin().
ferencd@0: 
ferencd@0: @liveexample{The following code shows how an `invalid_iterator` exception can be
ferencd@0: caught.,invalid_iterator}
ferencd@0: 
ferencd@0: @sa - @ref exception for the base class of the library exceptions
ferencd@0: @sa - @ref parse_error for exceptions indicating a parse error
ferencd@0: @sa - @ref type_error for exceptions indicating executing a member function with
ferencd@0:                     a wrong type
ferencd@0: @sa - @ref out_of_range for exceptions indicating access out of the defined range
ferencd@0: @sa - @ref other_error for exceptions indicating other library errors
ferencd@0: 
ferencd@0: @since version 3.0.0
ferencd@0: */
ferencd@0: class invalid_iterator : public exception
ferencd@0: {
ferencd@0:   public:
ferencd@0:     static invalid_iterator create(int id_, const std::string& what_arg)
ferencd@0:     {
ferencd@0:         std::string w = exception::name("invalid_iterator", id_) + what_arg;
ferencd@0:         return invalid_iterator(id_, w.c_str());
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     JSON_HEDLEY_NON_NULL(3)
ferencd@0:     invalid_iterator(int id_, const char* what_arg)
ferencd@0:         : exception(id_, what_arg) {}
ferencd@0: };
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief exception indicating executing a member function with a wrong type
ferencd@0: 
ferencd@0: This exception is thrown in case of a type error; that is, a library function is
ferencd@0: executed on a JSON value whose type does not match the expected semantics.
ferencd@0: 
ferencd@0: Exceptions have ids 3xx.
ferencd@0: 
ferencd@0: name / id                     | example message | description
ferencd@0: ----------------------------- | --------------- | -------------------------
ferencd@0: json.exception.type_error.301 | cannot create object from initializer list | To create an object from an initializer list, the initializer list must consist only of a list of pairs whose first element is a string. When this constraint is violated, an array is created instead.
ferencd@0: json.exception.type_error.302 | type must be object, but is array | During implicit or explicit value conversion, the JSON type must be compatible to the target type. For instance, a JSON string can only be converted into string types, but not into numbers or boolean types.
ferencd@0: json.exception.type_error.303 | incompatible ReferenceType for get_ref, actual type is object | To retrieve a reference to a value stored in a @ref basic_json object with @ref get_ref, the type of the reference must match the value type. For instance, for a JSON array, the @a ReferenceType must be @ref array_t &.
ferencd@0: json.exception.type_error.304 | cannot use at() with string | The @ref at() member functions can only be executed for certain JSON types.
ferencd@0: json.exception.type_error.305 | cannot use operator[] with string | The @ref operator[] member functions can only be executed for certain JSON types.
ferencd@0: json.exception.type_error.306 | cannot use value() with string | The @ref value() member functions can only be executed for certain JSON types.
ferencd@0: json.exception.type_error.307 | cannot use erase() with string | The @ref erase() member functions can only be executed for certain JSON types.
ferencd@0: json.exception.type_error.308 | cannot use push_back() with string | The @ref push_back() and @ref operator+= member functions can only be executed for certain JSON types.
ferencd@0: json.exception.type_error.309 | cannot use insert() with | The @ref insert() member functions can only be executed for certain JSON types.
ferencd@0: json.exception.type_error.310 | cannot use swap() with number | The @ref swap() member functions can only be executed for certain JSON types.
ferencd@0: json.exception.type_error.311 | cannot use emplace_back() with string | The @ref emplace_back() member function can only be executed for certain JSON types.
ferencd@0: json.exception.type_error.312 | cannot use update() with string | The @ref update() member functions can only be executed for certain JSON types.
ferencd@0: json.exception.type_error.313 | invalid value to unflatten | The @ref unflatten function converts an object whose keys are JSON Pointers back into an arbitrary nested JSON value. The JSON Pointers must not overlap, because then the resulting value would not be well defined.
ferencd@0: json.exception.type_error.314 | only objects can be unflattened | The @ref unflatten function only works for an object whose keys are JSON Pointers.
ferencd@0: json.exception.type_error.315 | values in object must be primitive | The @ref unflatten function only works for an object whose keys are JSON Pointers and whose values are primitive.
ferencd@0: json.exception.type_error.316 | invalid UTF-8 byte at index 10: 0x7E | The @ref dump function only works with UTF-8 encoded strings; that is, if you assign a `std::string` to a JSON value, make sure it is UTF-8 encoded. |
ferencd@0: json.exception.type_error.317 | JSON value cannot be serialized to requested format | The dynamic type of the object cannot be represented in the requested serialization format (e.g. a raw `true` or `null` JSON object cannot be serialized to BSON) |
ferencd@0: 
ferencd@0: @liveexample{The following code shows how a `type_error` exception can be
ferencd@0: caught.,type_error}
ferencd@0: 
ferencd@0: @sa - @ref exception for the base class of the library exceptions
ferencd@0: @sa - @ref parse_error for exceptions indicating a parse error
ferencd@0: @sa - @ref invalid_iterator for exceptions indicating errors with iterators
ferencd@0: @sa - @ref out_of_range for exceptions indicating access out of the defined range
ferencd@0: @sa - @ref other_error for exceptions indicating other library errors
ferencd@0: 
ferencd@0: @since version 3.0.0
ferencd@0: */
ferencd@0: class type_error : public exception
ferencd@0: {
ferencd@0:   public:
ferencd@0:     static type_error create(int id_, const std::string& what_arg)
ferencd@0:     {
ferencd@0:         std::string w = exception::name("type_error", id_) + what_arg;
ferencd@0:         return type_error(id_, w.c_str());
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     JSON_HEDLEY_NON_NULL(3)
ferencd@0:     type_error(int id_, const char* what_arg) : exception(id_, what_arg) {}
ferencd@0: };
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief exception indicating access out of the defined range
ferencd@0: 
ferencd@0: This exception is thrown in case a library function is called on an input
ferencd@0: parameter that exceeds the expected range, for instance in case of array
ferencd@0: indices or nonexisting object keys.
ferencd@0: 
ferencd@0: Exceptions have ids 4xx.
ferencd@0: 
ferencd@0: name / id                       | example message | description
ferencd@0: ------------------------------- | --------------- | -------------------------
ferencd@0: json.exception.out_of_range.401 | array index 3 is out of range | The provided array index @a i is larger than @a size-1.
ferencd@0: json.exception.out_of_range.402 | array index '-' (3) is out of range | The special array index `-` in a JSON Pointer never describes a valid element of the array, but the index past the end. That is, it can only be used to add elements at this position, but not to read it.
ferencd@0: json.exception.out_of_range.403 | key 'foo' not found | The provided key was not found in the JSON object.
ferencd@0: json.exception.out_of_range.404 | unresolved reference token 'foo' | A reference token in a JSON Pointer could not be resolved.
ferencd@0: json.exception.out_of_range.405 | JSON pointer has no parent | The JSON Patch operations 'remove' and 'add' can not be applied to the root element of the JSON value.
ferencd@0: json.exception.out_of_range.406 | number overflow parsing '10E1000' | A parsed number could not be stored as without changing it to NaN or INF.
ferencd@0: json.exception.out_of_range.407 | number overflow serializing '9223372036854775808' | UBJSON and BSON only support integer numbers up to 9223372036854775807. |
ferencd@0: json.exception.out_of_range.408 | excessive array size: 8658170730974374167 | The size (following `#`) of an UBJSON array or object exceeds the maximal capacity. |
ferencd@0: json.exception.out_of_range.409 | BSON key cannot contain code point U+0000 (at byte 2) | Key identifiers to be serialized to BSON cannot contain code point U+0000, since the key is stored as zero-terminated c-string |
ferencd@0: 
ferencd@0: @liveexample{The following code shows how an `out_of_range` exception can be
ferencd@0: caught.,out_of_range}
ferencd@0: 
ferencd@0: @sa - @ref exception for the base class of the library exceptions
ferencd@0: @sa - @ref parse_error for exceptions indicating a parse error
ferencd@0: @sa - @ref invalid_iterator for exceptions indicating errors with iterators
ferencd@0: @sa - @ref type_error for exceptions indicating executing a member function with
ferencd@0:                     a wrong type
ferencd@0: @sa - @ref other_error for exceptions indicating other library errors
ferencd@0: 
ferencd@0: @since version 3.0.0
ferencd@0: */
ferencd@0: class out_of_range : public exception
ferencd@0: {
ferencd@0:   public:
ferencd@0:     static out_of_range create(int id_, const std::string& what_arg)
ferencd@0:     {
ferencd@0:         std::string w = exception::name("out_of_range", id_) + what_arg;
ferencd@0:         return out_of_range(id_, w.c_str());
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     JSON_HEDLEY_NON_NULL(3)
ferencd@0:     out_of_range(int id_, const char* what_arg) : exception(id_, what_arg) {}
ferencd@0: };
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief exception indicating other library errors
ferencd@0: 
ferencd@0: This exception is thrown in case of errors that cannot be classified with the
ferencd@0: other exception types.
ferencd@0: 
ferencd@0: Exceptions have ids 5xx.
ferencd@0: 
ferencd@0: name / id                      | example message | description
ferencd@0: ------------------------------ | --------------- | -------------------------
ferencd@0: json.exception.other_error.501 | unsuccessful: {"op":"test","path":"/baz", "value":"bar"} | A JSON Patch operation 'test' failed. The unsuccessful operation is also printed.
ferencd@0: 
ferencd@0: @sa - @ref exception for the base class of the library exceptions
ferencd@0: @sa - @ref parse_error for exceptions indicating a parse error
ferencd@0: @sa - @ref invalid_iterator for exceptions indicating errors with iterators
ferencd@0: @sa - @ref type_error for exceptions indicating executing a member function with
ferencd@0:                     a wrong type
ferencd@0: @sa - @ref out_of_range for exceptions indicating access out of the defined range
ferencd@0: 
ferencd@0: @liveexample{The following code shows how an `other_error` exception can be
ferencd@0: caught.,other_error}
ferencd@0: 
ferencd@0: @since version 3.0.0
ferencd@0: */
ferencd@0: class other_error : public exception
ferencd@0: {
ferencd@0:   public:
ferencd@0:     static other_error create(int id_, const std::string& what_arg)
ferencd@0:     {
ferencd@0:         std::string w = exception::name("other_error", id_) + what_arg;
ferencd@0:         return other_error(id_, w.c_str());
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     JSON_HEDLEY_NON_NULL(3)
ferencd@0:     other_error(int id_, const char* what_arg) : exception(id_, what_arg) {}
ferencd@0: };
ferencd@0: }  // namespace detail
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/macro_scope.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/meta/cpp_future.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <ciso646> // not
ferencd@0: #include <cstddef> // size_t
ferencd@0: #include <type_traits> // conditional, enable_if, false_type, integral_constant, is_constructible, is_integral, is_same, remove_cv, remove_reference, true_type
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: // alias templates to reduce boilerplate
ferencd@0: template<bool B, typename T = void>
ferencd@0: using enable_if_t = typename std::enable_if<B, T>::type;
ferencd@0: 
ferencd@0: template<typename T>
ferencd@0: using uncvref_t = typename std::remove_cv<typename std::remove_reference<T>::type>::type;
ferencd@0: 
ferencd@0: // implementation of C++14 index_sequence and affiliates
ferencd@0: // source: https://stackoverflow.com/a/32223343
ferencd@0: template<std::size_t... Ints>
ferencd@0: struct index_sequence
ferencd@0: {
ferencd@0:     using type = index_sequence;
ferencd@0:     using value_type = std::size_t;
ferencd@0:     static constexpr std::size_t size() noexcept
ferencd@0:     {
ferencd@0:         return sizeof...(Ints);
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: template<class Sequence1, class Sequence2>
ferencd@0: struct merge_and_renumber;
ferencd@0: 
ferencd@0: template<std::size_t... I1, std::size_t... I2>
ferencd@0: struct merge_and_renumber<index_sequence<I1...>, index_sequence<I2...>>
ferencd@0:         : index_sequence < I1..., (sizeof...(I1) + I2)... > {};
ferencd@0: 
ferencd@0: template<std::size_t N>
ferencd@0: struct make_index_sequence
ferencd@0:     : merge_and_renumber < typename make_index_sequence < N / 2 >::type,
ferencd@0:       typename make_index_sequence < N - N / 2 >::type > {};
ferencd@0: 
ferencd@0: template<> struct make_index_sequence<0> : index_sequence<> {};
ferencd@0: template<> struct make_index_sequence<1> : index_sequence<0> {};
ferencd@0: 
ferencd@0: template<typename... Ts>
ferencd@0: using index_sequence_for = make_index_sequence<sizeof...(Ts)>;
ferencd@0: 
ferencd@0: // dispatch utility (taken from ranges-v3)
ferencd@0: template<unsigned N> struct priority_tag : priority_tag < N - 1 > {};
ferencd@0: template<> struct priority_tag<0> {};
ferencd@0: 
ferencd@0: // taken from ranges-v3
ferencd@0: template<typename T>
ferencd@0: struct static_const
ferencd@0: {
ferencd@0:     static constexpr T value{};
ferencd@0: };
ferencd@0: 
ferencd@0: template<typename T>
ferencd@0: constexpr T static_const<T>::value;
ferencd@0: }  // namespace detail
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/meta/type_traits.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <ciso646> // not
ferencd@0: #include <limits> // numeric_limits
ferencd@0: #include <type_traits> // false_type, is_constructible, is_integral, is_same, true_type
ferencd@0: #include <utility> // declval
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/iterators/iterator_traits.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <iterator> // random_access_iterator_tag
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/meta/void_t.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: template <typename ...Ts> struct make_void
ferencd@0: {
ferencd@0:     using type = void;
ferencd@0: };
ferencd@0: template <typename ...Ts> using void_t = typename make_void<Ts...>::type;
ferencd@0: } // namespace detail
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/meta/cpp_future.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: template <typename It, typename = void>
ferencd@0: struct iterator_types {};
ferencd@0: 
ferencd@0: template <typename It>
ferencd@0: struct iterator_types <
ferencd@0:     It,
ferencd@0:     void_t<typename It::difference_type, typename It::value_type, typename It::pointer,
ferencd@0:     typename It::reference, typename It::iterator_category >>
ferencd@0: {
ferencd@0:     using difference_type = typename It::difference_type;
ferencd@0:     using value_type = typename It::value_type;
ferencd@0:     using pointer = typename It::pointer;
ferencd@0:     using reference = typename It::reference;
ferencd@0:     using iterator_category = typename It::iterator_category;
ferencd@0: };
ferencd@0: 
ferencd@0: // This is required as some compilers implement std::iterator_traits in a way that
ferencd@0: // doesn't work with SFINAE. See https://github.com/nlohmann/json/issues/1341.
ferencd@0: template <typename T, typename = void>
ferencd@0: struct iterator_traits
ferencd@0: {
ferencd@0: };
ferencd@0: 
ferencd@0: template <typename T>
ferencd@0: struct iterator_traits < T, enable_if_t < !std::is_pointer<T>::value >>
ferencd@0:             : iterator_types<T>
ferencd@0: {
ferencd@0: };
ferencd@0: 
ferencd@0: template <typename T>
ferencd@0: struct iterator_traits<T*, enable_if_t<std::is_object<T>::value>>
ferencd@0: {
ferencd@0:     using iterator_category = std::random_access_iterator_tag;
ferencd@0:     using value_type = T;
ferencd@0:     using difference_type = ptrdiff_t;
ferencd@0:     using pointer = T*;
ferencd@0:     using reference = T&;
ferencd@0: };
ferencd@0: } // namespace detail
ferencd@0: } // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/macro_scope.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/meta/cpp_future.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/meta/detected.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <type_traits>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/meta/void_t.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: // http://en.cppreference.com/w/cpp/experimental/is_detected
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: struct nonesuch
ferencd@0: {
ferencd@0:     nonesuch() = delete;
ferencd@0:     ~nonesuch() = delete;
ferencd@0:     nonesuch(nonesuch const&) = delete;
ferencd@0:     nonesuch(nonesuch const&&) = delete;
ferencd@0:     void operator=(nonesuch const&) = delete;
ferencd@0:     void operator=(nonesuch&&) = delete;
ferencd@0: };
ferencd@0: 
ferencd@0: template <class Default,
ferencd@0:           class AlwaysVoid,
ferencd@0:           template <class...> class Op,
ferencd@0:           class... Args>
ferencd@0: struct detector
ferencd@0: {
ferencd@0:     using value_t = std::false_type;
ferencd@0:     using type = Default;
ferencd@0: };
ferencd@0: 
ferencd@0: template <class Default, template <class...> class Op, class... Args>
ferencd@0: struct detector<Default, void_t<Op<Args...>>, Op, Args...>
ferencd@0: {
ferencd@0:     using value_t = std::true_type;
ferencd@0:     using type = Op<Args...>;
ferencd@0: };
ferencd@0: 
ferencd@0: template <template <class...> class Op, class... Args>
ferencd@0: using is_detected = typename detector<nonesuch, void, Op, Args...>::value_t;
ferencd@0: 
ferencd@0: template <template <class...> class Op, class... Args>
ferencd@0: using detected_t = typename detector<nonesuch, void, Op, Args...>::type;
ferencd@0: 
ferencd@0: template <class Default, template <class...> class Op, class... Args>
ferencd@0: using detected_or = detector<Default, void, Op, Args...>;
ferencd@0: 
ferencd@0: template <class Default, template <class...> class Op, class... Args>
ferencd@0: using detected_or_t = typename detected_or<Default, Op, Args...>::type;
ferencd@0: 
ferencd@0: template <class Expected, template <class...> class Op, class... Args>
ferencd@0: using is_detected_exact = std::is_same<Expected, detected_t<Op, Args...>>;
ferencd@0: 
ferencd@0: template <class To, template <class...> class Op, class... Args>
ferencd@0: using is_detected_convertible =
ferencd@0:     std::is_convertible<detected_t<Op, Args...>, To>;
ferencd@0: }  // namespace detail
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/json_fwd.hpp>
ferencd@0: #ifndef INCLUDE_NLOHMANN_JSON_FWD_HPP_
ferencd@0: #define INCLUDE_NLOHMANN_JSON_FWD_HPP_
ferencd@0: 
ferencd@0: #include <cstdint> // int64_t, uint64_t
ferencd@0: #include <map> // map
ferencd@0: #include <memory> // allocator
ferencd@0: #include <string> // string
ferencd@0: #include <vector> // vector
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief namespace for Niels Lohmann
ferencd@0: @see https://github.com/nlohmann
ferencd@0: @since version 1.0.0
ferencd@0: */
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: /*!
ferencd@0: @brief default JSONSerializer template argument
ferencd@0: 
ferencd@0: This serializer ignores the template arguments and uses ADL
ferencd@0: ([argument-dependent lookup](https://en.cppreference.com/w/cpp/language/adl))
ferencd@0: for serialization.
ferencd@0: */
ferencd@0: template<typename T = void, typename SFINAE = void>
ferencd@0: struct adl_serializer;
ferencd@0: 
ferencd@0: template<template<typename U, typename V, typename... Args> class ObjectType =
ferencd@0:          std::map,
ferencd@0:          template<typename U, typename... Args> class ArrayType = std::vector,
ferencd@0:          class StringType = std::string, class BooleanType = bool,
ferencd@0:          class NumberIntegerType = std::int64_t,
ferencd@0:          class NumberUnsignedType = std::uint64_t,
ferencd@0:          class NumberFloatType = double,
ferencd@0:          template<typename U> class AllocatorType = std::allocator,
ferencd@0:          template<typename T, typename SFINAE = void> class JSONSerializer =
ferencd@0:          adl_serializer>
ferencd@0: class basic_json;
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief JSON Pointer
ferencd@0: 
ferencd@0: A JSON pointer defines a string syntax for identifying a specific value
ferencd@0: within a JSON document. It can be used with functions `at` and
ferencd@0: `operator[]`. Furthermore, JSON pointers are the base for JSON patches.
ferencd@0: 
ferencd@0: @sa [RFC 6901](https://tools.ietf.org/html/rfc6901)
ferencd@0: 
ferencd@0: @since version 2.0.0
ferencd@0: */
ferencd@0: template<typename BasicJsonType>
ferencd@0: class json_pointer;
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief default JSON class
ferencd@0: 
ferencd@0: This type is the default specialization of the @ref basic_json class which
ferencd@0: uses the standard template types.
ferencd@0: 
ferencd@0: @since version 1.0.0
ferencd@0: */
ferencd@0: using json = basic_json<>;
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: #endif  // INCLUDE_NLOHMANN_JSON_FWD_HPP_
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: /*!
ferencd@0: @brief detail namespace with internal helper functions
ferencd@0: 
ferencd@0: This namespace collects functions that should not be exposed,
ferencd@0: implementations of some @ref basic_json methods, and meta-programming helpers.
ferencd@0: 
ferencd@0: @since version 2.1.0
ferencd@0: */
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: /////////////
ferencd@0: // helpers //
ferencd@0: /////////////
ferencd@0: 
ferencd@0: // Note to maintainers:
ferencd@0: //
ferencd@0: // Every trait in this file expects a non CV-qualified type.
ferencd@0: // The only exceptions are in the 'aliases for detected' section
ferencd@0: // (i.e. those of the form: decltype(T::member_function(std::declval<T>())))
ferencd@0: //
ferencd@0: // In this case, T has to be properly CV-qualified to constraint the function arguments
ferencd@0: // (e.g. to_json(BasicJsonType&, const T&))
ferencd@0: 
ferencd@0: template<typename> struct is_basic_json : std::false_type {};
ferencd@0: 
ferencd@0: NLOHMANN_BASIC_JSON_TPL_DECLARATION
ferencd@0: struct is_basic_json<NLOHMANN_BASIC_JSON_TPL> : std::true_type {};
ferencd@0: 
ferencd@0: //////////////////////////
ferencd@0: // aliases for detected //
ferencd@0: //////////////////////////
ferencd@0: 
ferencd@0: template <typename T>
ferencd@0: using mapped_type_t = typename T::mapped_type;
ferencd@0: 
ferencd@0: template <typename T>
ferencd@0: using key_type_t = typename T::key_type;
ferencd@0: 
ferencd@0: template <typename T>
ferencd@0: using value_type_t = typename T::value_type;
ferencd@0: 
ferencd@0: template <typename T>
ferencd@0: using difference_type_t = typename T::difference_type;
ferencd@0: 
ferencd@0: template <typename T>
ferencd@0: using pointer_t = typename T::pointer;
ferencd@0: 
ferencd@0: template <typename T>
ferencd@0: using reference_t = typename T::reference;
ferencd@0: 
ferencd@0: template <typename T>
ferencd@0: using iterator_category_t = typename T::iterator_category;
ferencd@0: 
ferencd@0: template <typename T>
ferencd@0: using iterator_t = typename T::iterator;
ferencd@0: 
ferencd@0: template <typename T, typename... Args>
ferencd@0: using to_json_function = decltype(T::to_json(std::declval<Args>()...));
ferencd@0: 
ferencd@0: template <typename T, typename... Args>
ferencd@0: using from_json_function = decltype(T::from_json(std::declval<Args>()...));
ferencd@0: 
ferencd@0: template <typename T, typename U>
ferencd@0: using get_template_function = decltype(std::declval<T>().template get<U>());
ferencd@0: 
ferencd@0: // trait checking if JSONSerializer<T>::from_json(json const&, udt&) exists
ferencd@0: template <typename BasicJsonType, typename T, typename = void>
ferencd@0: struct has_from_json : std::false_type {};
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename T>
ferencd@0: struct has_from_json<BasicJsonType, T,
ferencd@0:            enable_if_t<not is_basic_json<T>::value>>
ferencd@0: {
ferencd@0:     using serializer = typename BasicJsonType::template json_serializer<T, void>;
ferencd@0: 
ferencd@0:     static constexpr bool value =
ferencd@0:         is_detected_exact<void, from_json_function, serializer,
ferencd@0:         const BasicJsonType&, T&>::value;
ferencd@0: };
ferencd@0: 
ferencd@0: // This trait checks if JSONSerializer<T>::from_json(json const&) exists
ferencd@0: // this overload is used for non-default-constructible user-defined-types
ferencd@0: template <typename BasicJsonType, typename T, typename = void>
ferencd@0: struct has_non_default_from_json : std::false_type {};
ferencd@0: 
ferencd@0: template<typename BasicJsonType, typename T>
ferencd@0: struct has_non_default_from_json<BasicJsonType, T, enable_if_t<not is_basic_json<T>::value>>
ferencd@0: {
ferencd@0:     using serializer = typename BasicJsonType::template json_serializer<T, void>;
ferencd@0: 
ferencd@0:     static constexpr bool value =
ferencd@0:         is_detected_exact<T, from_json_function, serializer,
ferencd@0:         const BasicJsonType&>::value;
ferencd@0: };
ferencd@0: 
ferencd@0: // This trait checks if BasicJsonType::json_serializer<T>::to_json exists
ferencd@0: // Do not evaluate the trait when T is a basic_json type, to avoid template instantiation infinite recursion.
ferencd@0: template <typename BasicJsonType, typename T, typename = void>
ferencd@0: struct has_to_json : std::false_type {};
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename T>
ferencd@0: struct has_to_json<BasicJsonType, T, enable_if_t<not is_basic_json<T>::value>>
ferencd@0: {
ferencd@0:     using serializer = typename BasicJsonType::template json_serializer<T, void>;
ferencd@0: 
ferencd@0:     static constexpr bool value =
ferencd@0:         is_detected_exact<void, to_json_function, serializer, BasicJsonType&,
ferencd@0:         T>::value;
ferencd@0: };
ferencd@0: 
ferencd@0: 
ferencd@0: ///////////////////
ferencd@0: // is_ functions //
ferencd@0: ///////////////////
ferencd@0: 
ferencd@0: template <typename T, typename = void>
ferencd@0: struct is_iterator_traits : std::false_type {};
ferencd@0: 
ferencd@0: template <typename T>
ferencd@0: struct is_iterator_traits<iterator_traits<T>>
ferencd@0: {
ferencd@0:   private:
ferencd@0:     using traits = iterator_traits<T>;
ferencd@0: 
ferencd@0:   public:
ferencd@0:     static constexpr auto value =
ferencd@0:         is_detected<value_type_t, traits>::value &&
ferencd@0:         is_detected<difference_type_t, traits>::value &&
ferencd@0:         is_detected<pointer_t, traits>::value &&
ferencd@0:         is_detected<iterator_category_t, traits>::value &&
ferencd@0:         is_detected<reference_t, traits>::value;
ferencd@0: };
ferencd@0: 
ferencd@0: // source: https://stackoverflow.com/a/37193089/4116453
ferencd@0: 
ferencd@0: template <typename T, typename = void>
ferencd@0: struct is_complete_type : std::false_type {};
ferencd@0: 
ferencd@0: template <typename T>
ferencd@0: struct is_complete_type<T, decltype(void(sizeof(T)))> : std::true_type {};
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename CompatibleObjectType,
ferencd@0:           typename = void>
ferencd@0: struct is_compatible_object_type_impl : std::false_type {};
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename CompatibleObjectType>
ferencd@0: struct is_compatible_object_type_impl <
ferencd@0:     BasicJsonType, CompatibleObjectType,
ferencd@0:     enable_if_t<is_detected<mapped_type_t, CompatibleObjectType>::value and
ferencd@0:     is_detected<key_type_t, CompatibleObjectType>::value >>
ferencd@0: {
ferencd@0: 
ferencd@0:     using object_t = typename BasicJsonType::object_t;
ferencd@0: 
ferencd@0:     // macOS's is_constructible does not play well with nonesuch...
ferencd@0:     static constexpr bool value =
ferencd@0:         std::is_constructible<typename object_t::key_type,
ferencd@0:         typename CompatibleObjectType::key_type>::value and
ferencd@0:         std::is_constructible<typename object_t::mapped_type,
ferencd@0:         typename CompatibleObjectType::mapped_type>::value;
ferencd@0: };
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename CompatibleObjectType>
ferencd@0: struct is_compatible_object_type
ferencd@0:     : is_compatible_object_type_impl<BasicJsonType, CompatibleObjectType> {};
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename ConstructibleObjectType,
ferencd@0:           typename = void>
ferencd@0: struct is_constructible_object_type_impl : std::false_type {};
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename ConstructibleObjectType>
ferencd@0: struct is_constructible_object_type_impl <
ferencd@0:     BasicJsonType, ConstructibleObjectType,
ferencd@0:     enable_if_t<is_detected<mapped_type_t, ConstructibleObjectType>::value and
ferencd@0:     is_detected<key_type_t, ConstructibleObjectType>::value >>
ferencd@0: {
ferencd@0:     using object_t = typename BasicJsonType::object_t;
ferencd@0: 
ferencd@0:     static constexpr bool value =
ferencd@0:         (std::is_default_constructible<ConstructibleObjectType>::value and
ferencd@0:          (std::is_move_assignable<ConstructibleObjectType>::value or
ferencd@0:           std::is_copy_assignable<ConstructibleObjectType>::value) and
ferencd@0:          (std::is_constructible<typename ConstructibleObjectType::key_type,
ferencd@0:           typename object_t::key_type>::value and
ferencd@0:           std::is_same <
ferencd@0:           typename object_t::mapped_type,
ferencd@0:           typename ConstructibleObjectType::mapped_type >::value)) or
ferencd@0:         (has_from_json<BasicJsonType,
ferencd@0:          typename ConstructibleObjectType::mapped_type>::value or
ferencd@0:          has_non_default_from_json <
ferencd@0:          BasicJsonType,
ferencd@0:          typename ConstructibleObjectType::mapped_type >::value);
ferencd@0: };
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename ConstructibleObjectType>
ferencd@0: struct is_constructible_object_type
ferencd@0:     : is_constructible_object_type_impl<BasicJsonType,
ferencd@0:       ConstructibleObjectType> {};
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename CompatibleStringType,
ferencd@0:           typename = void>
ferencd@0: struct is_compatible_string_type_impl : std::false_type {};
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename CompatibleStringType>
ferencd@0: struct is_compatible_string_type_impl <
ferencd@0:     BasicJsonType, CompatibleStringType,
ferencd@0:     enable_if_t<is_detected_exact<typename BasicJsonType::string_t::value_type,
ferencd@0:     value_type_t, CompatibleStringType>::value >>
ferencd@0: {
ferencd@0:     static constexpr auto value =
ferencd@0:         std::is_constructible<typename BasicJsonType::string_t, CompatibleStringType>::value;
ferencd@0: };
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename ConstructibleStringType>
ferencd@0: struct is_compatible_string_type
ferencd@0:     : is_compatible_string_type_impl<BasicJsonType, ConstructibleStringType> {};
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename ConstructibleStringType,
ferencd@0:           typename = void>
ferencd@0: struct is_constructible_string_type_impl : std::false_type {};
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename ConstructibleStringType>
ferencd@0: struct is_constructible_string_type_impl <
ferencd@0:     BasicJsonType, ConstructibleStringType,
ferencd@0:     enable_if_t<is_detected_exact<typename BasicJsonType::string_t::value_type,
ferencd@0:     value_type_t, ConstructibleStringType>::value >>
ferencd@0: {
ferencd@0:     static constexpr auto value =
ferencd@0:         std::is_constructible<ConstructibleStringType,
ferencd@0:         typename BasicJsonType::string_t>::value;
ferencd@0: };
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename ConstructibleStringType>
ferencd@0: struct is_constructible_string_type
ferencd@0:     : is_constructible_string_type_impl<BasicJsonType, ConstructibleStringType> {};
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename CompatibleArrayType, typename = void>
ferencd@0: struct is_compatible_array_type_impl : std::false_type {};
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename CompatibleArrayType>
ferencd@0: struct is_compatible_array_type_impl <
ferencd@0:     BasicJsonType, CompatibleArrayType,
ferencd@0:     enable_if_t<is_detected<value_type_t, CompatibleArrayType>::value and
ferencd@0:     is_detected<iterator_t, CompatibleArrayType>::value and
ferencd@0: // This is needed because json_reverse_iterator has a ::iterator type...
ferencd@0: // Therefore it is detected as a CompatibleArrayType.
ferencd@0: // The real fix would be to have an Iterable concept.
ferencd@0:     not is_iterator_traits<
ferencd@0:     iterator_traits<CompatibleArrayType>>::value >>
ferencd@0: {
ferencd@0:     static constexpr bool value =
ferencd@0:         std::is_constructible<BasicJsonType,
ferencd@0:         typename CompatibleArrayType::value_type>::value;
ferencd@0: };
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename CompatibleArrayType>
ferencd@0: struct is_compatible_array_type
ferencd@0:     : is_compatible_array_type_impl<BasicJsonType, CompatibleArrayType> {};
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename ConstructibleArrayType, typename = void>
ferencd@0: struct is_constructible_array_type_impl : std::false_type {};
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename ConstructibleArrayType>
ferencd@0: struct is_constructible_array_type_impl <
ferencd@0:     BasicJsonType, ConstructibleArrayType,
ferencd@0:     enable_if_t<std::is_same<ConstructibleArrayType,
ferencd@0:     typename BasicJsonType::value_type>::value >>
ferencd@0:             : std::true_type {};
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename ConstructibleArrayType>
ferencd@0: struct is_constructible_array_type_impl <
ferencd@0:     BasicJsonType, ConstructibleArrayType,
ferencd@0:     enable_if_t<not std::is_same<ConstructibleArrayType,
ferencd@0:     typename BasicJsonType::value_type>::value and
ferencd@0:     std::is_default_constructible<ConstructibleArrayType>::value and
ferencd@0: (std::is_move_assignable<ConstructibleArrayType>::value or
ferencd@0:  std::is_copy_assignable<ConstructibleArrayType>::value) and
ferencd@0: is_detected<value_type_t, ConstructibleArrayType>::value and
ferencd@0: is_detected<iterator_t, ConstructibleArrayType>::value and
ferencd@0: is_complete_type<
ferencd@0: detected_t<value_type_t, ConstructibleArrayType>>::value >>
ferencd@0: {
ferencd@0:     static constexpr bool value =
ferencd@0:         // This is needed because json_reverse_iterator has a ::iterator type,
ferencd@0:         // furthermore, std::back_insert_iterator (and other iterators) have a
ferencd@0:         // base class `iterator`... Therefore it is detected as a
ferencd@0:         // ConstructibleArrayType. The real fix would be to have an Iterable
ferencd@0:         // concept.
ferencd@0:         not is_iterator_traits<iterator_traits<ConstructibleArrayType>>::value and
ferencd@0: 
ferencd@0:         (std::is_same<typename ConstructibleArrayType::value_type,
ferencd@0:          typename BasicJsonType::array_t::value_type>::value or
ferencd@0:          has_from_json<BasicJsonType,
ferencd@0:          typename ConstructibleArrayType::value_type>::value or
ferencd@0:          has_non_default_from_json <
ferencd@0:          BasicJsonType, typename ConstructibleArrayType::value_type >::value);
ferencd@0: };
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename ConstructibleArrayType>
ferencd@0: struct is_constructible_array_type
ferencd@0:     : is_constructible_array_type_impl<BasicJsonType, ConstructibleArrayType> {};
ferencd@0: 
ferencd@0: template <typename RealIntegerType, typename CompatibleNumberIntegerType,
ferencd@0:           typename = void>
ferencd@0: struct is_compatible_integer_type_impl : std::false_type {};
ferencd@0: 
ferencd@0: template <typename RealIntegerType, typename CompatibleNumberIntegerType>
ferencd@0: struct is_compatible_integer_type_impl <
ferencd@0:     RealIntegerType, CompatibleNumberIntegerType,
ferencd@0:     enable_if_t<std::is_integral<RealIntegerType>::value and
ferencd@0:     std::is_integral<CompatibleNumberIntegerType>::value and
ferencd@0:     not std::is_same<bool, CompatibleNumberIntegerType>::value >>
ferencd@0: {
ferencd@0:     // is there an assert somewhere on overflows?
ferencd@0:     using RealLimits = std::numeric_limits<RealIntegerType>;
ferencd@0:     using CompatibleLimits = std::numeric_limits<CompatibleNumberIntegerType>;
ferencd@0: 
ferencd@0:     static constexpr auto value =
ferencd@0:         std::is_constructible<RealIntegerType,
ferencd@0:         CompatibleNumberIntegerType>::value and
ferencd@0:         CompatibleLimits::is_integer and
ferencd@0:         RealLimits::is_signed == CompatibleLimits::is_signed;
ferencd@0: };
ferencd@0: 
ferencd@0: template <typename RealIntegerType, typename CompatibleNumberIntegerType>
ferencd@0: struct is_compatible_integer_type
ferencd@0:     : is_compatible_integer_type_impl<RealIntegerType,
ferencd@0:       CompatibleNumberIntegerType> {};
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename CompatibleType, typename = void>
ferencd@0: struct is_compatible_type_impl: std::false_type {};
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename CompatibleType>
ferencd@0: struct is_compatible_type_impl <
ferencd@0:     BasicJsonType, CompatibleType,
ferencd@0:     enable_if_t<is_complete_type<CompatibleType>::value >>
ferencd@0: {
ferencd@0:     static constexpr bool value =
ferencd@0:         has_to_json<BasicJsonType, CompatibleType>::value;
ferencd@0: };
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename CompatibleType>
ferencd@0: struct is_compatible_type
ferencd@0:     : is_compatible_type_impl<BasicJsonType, CompatibleType> {};
ferencd@0: }  // namespace detail
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/value_t.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <array> // array
ferencd@0: #include <ciso646> // and
ferencd@0: #include <cstddef> // size_t
ferencd@0: #include <cstdint> // uint8_t
ferencd@0: #include <string> // string
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: ///////////////////////////
ferencd@0: // JSON type enumeration //
ferencd@0: ///////////////////////////
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief the JSON type enumeration
ferencd@0: 
ferencd@0: This enumeration collects the different JSON types. It is internally used to
ferencd@0: distinguish the stored values, and the functions @ref basic_json::is_null(),
ferencd@0: @ref basic_json::is_object(), @ref basic_json::is_array(),
ferencd@0: @ref basic_json::is_string(), @ref basic_json::is_boolean(),
ferencd@0: @ref basic_json::is_number() (with @ref basic_json::is_number_integer(),
ferencd@0: @ref basic_json::is_number_unsigned(), and @ref basic_json::is_number_float()),
ferencd@0: @ref basic_json::is_discarded(), @ref basic_json::is_primitive(), and
ferencd@0: @ref basic_json::is_structured() rely on it.
ferencd@0: 
ferencd@0: @note There are three enumeration entries (number_integer, number_unsigned, and
ferencd@0: number_float), because the library distinguishes these three types for numbers:
ferencd@0: @ref basic_json::number_unsigned_t is used for unsigned integers,
ferencd@0: @ref basic_json::number_integer_t is used for signed integers, and
ferencd@0: @ref basic_json::number_float_t is used for floating-point numbers or to
ferencd@0: approximate integers which do not fit in the limits of their respective type.
ferencd@0: 
ferencd@0: @sa @ref basic_json::basic_json(const value_t value_type) -- create a JSON
ferencd@0: value with the default value for a given type
ferencd@0: 
ferencd@0: @since version 1.0.0
ferencd@0: */
ferencd@0: enum class value_t : std::uint8_t
ferencd@0: {
ferencd@0:     null,             ///< null value
ferencd@0:     object,           ///< object (unordered set of name/value pairs)
ferencd@0:     array,            ///< array (ordered collection of values)
ferencd@0:     string,           ///< string value
ferencd@0:     boolean,          ///< boolean value
ferencd@0:     number_integer,   ///< number value (signed integer)
ferencd@0:     number_unsigned,  ///< number value (unsigned integer)
ferencd@0:     number_float,     ///< number value (floating-point)
ferencd@0:     discarded         ///< discarded by the the parser callback function
ferencd@0: };
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief comparison operator for JSON types
ferencd@0: 
ferencd@0: Returns an ordering that is similar to Python:
ferencd@0: - order: null < boolean < number < object < array < string
ferencd@0: - furthermore, each type is not smaller than itself
ferencd@0: - discarded values are not comparable
ferencd@0: 
ferencd@0: @since version 1.0.0
ferencd@0: */
ferencd@0: inline bool operator<(const value_t lhs, const value_t rhs) noexcept
ferencd@0: {
ferencd@0:     static constexpr std::array<std::uint8_t, 8> order = {{
ferencd@0:             0 /* null */, 3 /* object */, 4 /* array */, 5 /* string */,
ferencd@0:             1 /* boolean */, 2 /* integer */, 2 /* unsigned */, 2 /* float */
ferencd@0:         }
ferencd@0:     };
ferencd@0: 
ferencd@0:     const auto l_index = static_cast<std::size_t>(lhs);
ferencd@0:     const auto r_index = static_cast<std::size_t>(rhs);
ferencd@0:     return l_index < order.size() and r_index < order.size() and order[l_index] < order[r_index];
ferencd@0: }
ferencd@0: }  // namespace detail
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: template<typename BasicJsonType>
ferencd@0: void from_json(const BasicJsonType& j, typename std::nullptr_t& n)
ferencd@0: {
ferencd@0:     if (JSON_HEDLEY_UNLIKELY(not j.is_null()))
ferencd@0:     {
ferencd@0:         JSON_THROW(type_error::create(302, "type must be null, but is " + std::string(j.type_name())));
ferencd@0:     }
ferencd@0:     n = nullptr;
ferencd@0: }
ferencd@0: 
ferencd@0: // overloads for basic_json template parameters
ferencd@0: template<typename BasicJsonType, typename ArithmeticType,
ferencd@0:          enable_if_t<std::is_arithmetic<ArithmeticType>::value and
ferencd@0:                      not std::is_same<ArithmeticType, typename BasicJsonType::boolean_t>::value,
ferencd@0:                      int> = 0>
ferencd@0: void get_arithmetic_value(const BasicJsonType& j, ArithmeticType& val)
ferencd@0: {
ferencd@0:     switch (static_cast<value_t>(j))
ferencd@0:     {
ferencd@0:         case value_t::number_unsigned:
ferencd@0:         {
ferencd@0:             val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_unsigned_t*>());
ferencd@0:             break;
ferencd@0:         }
ferencd@0:         case value_t::number_integer:
ferencd@0:         {
ferencd@0:             val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_integer_t*>());
ferencd@0:             break;
ferencd@0:         }
ferencd@0:         case value_t::number_float:
ferencd@0:         {
ferencd@0:             val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_float_t*>());
ferencd@0:             break;
ferencd@0:         }
ferencd@0: 
ferencd@0:         default:
ferencd@0:             JSON_THROW(type_error::create(302, "type must be number, but is " + std::string(j.type_name())));
ferencd@0:     }
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType>
ferencd@0: void from_json(const BasicJsonType& j, typename BasicJsonType::boolean_t& b)
ferencd@0: {
ferencd@0:     if (JSON_HEDLEY_UNLIKELY(not j.is_boolean()))
ferencd@0:     {
ferencd@0:         JSON_THROW(type_error::create(302, "type must be boolean, but is " + std::string(j.type_name())));
ferencd@0:     }
ferencd@0:     b = *j.template get_ptr<const typename BasicJsonType::boolean_t*>();
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType>
ferencd@0: void from_json(const BasicJsonType& j, typename BasicJsonType::string_t& s)
ferencd@0: {
ferencd@0:     if (JSON_HEDLEY_UNLIKELY(not j.is_string()))
ferencd@0:     {
ferencd@0:         JSON_THROW(type_error::create(302, "type must be string, but is " + std::string(j.type_name())));
ferencd@0:     }
ferencd@0:     s = *j.template get_ptr<const typename BasicJsonType::string_t*>();
ferencd@0: }
ferencd@0: 
ferencd@0: template <
ferencd@0:     typename BasicJsonType, typename ConstructibleStringType,
ferencd@0:     enable_if_t <
ferencd@0:         is_constructible_string_type<BasicJsonType, ConstructibleStringType>::value and
ferencd@0:         not std::is_same<typename BasicJsonType::string_t,
ferencd@0:                          ConstructibleStringType>::value,
ferencd@0:         int > = 0 >
ferencd@0: void from_json(const BasicJsonType& j, ConstructibleStringType& s)
ferencd@0: {
ferencd@0:     if (JSON_HEDLEY_UNLIKELY(not j.is_string()))
ferencd@0:     {
ferencd@0:         JSON_THROW(type_error::create(302, "type must be string, but is " + std::string(j.type_name())));
ferencd@0:     }
ferencd@0: 
ferencd@0:     s = *j.template get_ptr<const typename BasicJsonType::string_t*>();
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType>
ferencd@0: void from_json(const BasicJsonType& j, typename BasicJsonType::number_float_t& val)
ferencd@0: {
ferencd@0:     get_arithmetic_value(j, val);
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType>
ferencd@0: void from_json(const BasicJsonType& j, typename BasicJsonType::number_unsigned_t& val)
ferencd@0: {
ferencd@0:     get_arithmetic_value(j, val);
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType>
ferencd@0: void from_json(const BasicJsonType& j, typename BasicJsonType::number_integer_t& val)
ferencd@0: {
ferencd@0:     get_arithmetic_value(j, val);
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType, typename EnumType,
ferencd@0:          enable_if_t<std::is_enum<EnumType>::value, int> = 0>
ferencd@0: void from_json(const BasicJsonType& j, EnumType& e)
ferencd@0: {
ferencd@0:     typename std::underlying_type<EnumType>::type val;
ferencd@0:     get_arithmetic_value(j, val);
ferencd@0:     e = static_cast<EnumType>(val);
ferencd@0: }
ferencd@0: 
ferencd@0: // forward_list doesn't have an insert method
ferencd@0: template<typename BasicJsonType, typename T, typename Allocator,
ferencd@0:          enable_if_t<std::is_convertible<BasicJsonType, T>::value, int> = 0>
ferencd@0: void from_json(const BasicJsonType& j, std::forward_list<T, Allocator>& l)
ferencd@0: {
ferencd@0:     if (JSON_HEDLEY_UNLIKELY(not j.is_array()))
ferencd@0:     {
ferencd@0:         JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name())));
ferencd@0:     }
ferencd@0:     l.clear();
ferencd@0:     std::transform(j.rbegin(), j.rend(),
ferencd@0:                    std::front_inserter(l), [](const BasicJsonType & i)
ferencd@0:     {
ferencd@0:         return i.template get<T>();
ferencd@0:     });
ferencd@0: }
ferencd@0: 
ferencd@0: // valarray doesn't have an insert method
ferencd@0: template<typename BasicJsonType, typename T,
ferencd@0:          enable_if_t<std::is_convertible<BasicJsonType, T>::value, int> = 0>
ferencd@0: void from_json(const BasicJsonType& j, std::valarray<T>& l)
ferencd@0: {
ferencd@0:     if (JSON_HEDLEY_UNLIKELY(not j.is_array()))
ferencd@0:     {
ferencd@0:         JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name())));
ferencd@0:     }
ferencd@0:     l.resize(j.size());
ferencd@0:     std::copy(j.m_value.array->begin(), j.m_value.array->end(), std::begin(l));
ferencd@0: }
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename T, std::size_t N>
ferencd@0: auto from_json(const BasicJsonType& j, T (&arr)[N])
ferencd@0: -> decltype(j.template get<T>(), void())
ferencd@0: {
ferencd@0:     for (std::size_t i = 0; i < N; ++i)
ferencd@0:     {
ferencd@0:         arr[i] = j.at(i).template get<T>();
ferencd@0:     }
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType>
ferencd@0: void from_json_array_impl(const BasicJsonType& j, typename BasicJsonType::array_t& arr, priority_tag<3> /*unused*/)
ferencd@0: {
ferencd@0:     arr = *j.template get_ptr<const typename BasicJsonType::array_t*>();
ferencd@0: }
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename T, std::size_t N>
ferencd@0: auto from_json_array_impl(const BasicJsonType& j, std::array<T, N>& arr,
ferencd@0:                           priority_tag<2> /*unused*/)
ferencd@0: -> decltype(j.template get<T>(), void())
ferencd@0: {
ferencd@0:     for (std::size_t i = 0; i < N; ++i)
ferencd@0:     {
ferencd@0:         arr[i] = j.at(i).template get<T>();
ferencd@0:     }
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType, typename ConstructibleArrayType>
ferencd@0: auto from_json_array_impl(const BasicJsonType& j, ConstructibleArrayType& arr, priority_tag<1> /*unused*/)
ferencd@0: -> decltype(
ferencd@0:     arr.reserve(std::declval<typename ConstructibleArrayType::size_type>()),
ferencd@0:     j.template get<typename ConstructibleArrayType::value_type>(),
ferencd@0:     void())
ferencd@0: {
ferencd@0:     using std::end;
ferencd@0: 
ferencd@0:     ConstructibleArrayType ret;
ferencd@0:     ret.reserve(j.size());
ferencd@0:     std::transform(j.begin(), j.end(),
ferencd@0:                    std::inserter(ret, end(ret)), [](const BasicJsonType & i)
ferencd@0:     {
ferencd@0:         // get<BasicJsonType>() returns *this, this won't call a from_json
ferencd@0:         // method when value_type is BasicJsonType
ferencd@0:         return i.template get<typename ConstructibleArrayType::value_type>();
ferencd@0:     });
ferencd@0:     arr = std::move(ret);
ferencd@0: }
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename ConstructibleArrayType>
ferencd@0: void from_json_array_impl(const BasicJsonType& j, ConstructibleArrayType& arr,
ferencd@0:                           priority_tag<0> /*unused*/)
ferencd@0: {
ferencd@0:     using std::end;
ferencd@0: 
ferencd@0:     ConstructibleArrayType ret;
ferencd@0:     std::transform(
ferencd@0:         j.begin(), j.end(), std::inserter(ret, end(ret)),
ferencd@0:         [](const BasicJsonType & i)
ferencd@0:     {
ferencd@0:         // get<BasicJsonType>() returns *this, this won't call a from_json
ferencd@0:         // method when value_type is BasicJsonType
ferencd@0:         return i.template get<typename ConstructibleArrayType::value_type>();
ferencd@0:     });
ferencd@0:     arr = std::move(ret);
ferencd@0: }
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename ConstructibleArrayType,
ferencd@0:           enable_if_t <
ferencd@0:               is_constructible_array_type<BasicJsonType, ConstructibleArrayType>::value and
ferencd@0:               not is_constructible_object_type<BasicJsonType, ConstructibleArrayType>::value and
ferencd@0:               not is_constructible_string_type<BasicJsonType, ConstructibleArrayType>::value and
ferencd@0:               not is_basic_json<ConstructibleArrayType>::value,
ferencd@0:               int > = 0 >
ferencd@0: 
ferencd@0: auto from_json(const BasicJsonType& j, ConstructibleArrayType& arr)
ferencd@0: -> decltype(from_json_array_impl(j, arr, priority_tag<3> {}),
ferencd@0: j.template get<typename ConstructibleArrayType::value_type>(),
ferencd@0: void())
ferencd@0: {
ferencd@0:     if (JSON_HEDLEY_UNLIKELY(not j.is_array()))
ferencd@0:     {
ferencd@0:         JSON_THROW(type_error::create(302, "type must be array, but is " +
ferencd@0:                                       std::string(j.type_name())));
ferencd@0:     }
ferencd@0: 
ferencd@0:     from_json_array_impl(j, arr, priority_tag<3> {});
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType, typename ConstructibleObjectType,
ferencd@0:          enable_if_t<is_constructible_object_type<BasicJsonType, ConstructibleObjectType>::value, int> = 0>
ferencd@0: void from_json(const BasicJsonType& j, ConstructibleObjectType& obj)
ferencd@0: {
ferencd@0:     if (JSON_HEDLEY_UNLIKELY(not j.is_object()))
ferencd@0:     {
ferencd@0:         JSON_THROW(type_error::create(302, "type must be object, but is " + std::string(j.type_name())));
ferencd@0:     }
ferencd@0: 
ferencd@0:     ConstructibleObjectType ret;
ferencd@0:     auto inner_object = j.template get_ptr<const typename BasicJsonType::object_t*>();
ferencd@0:     using value_type = typename ConstructibleObjectType::value_type;
ferencd@0:     std::transform(
ferencd@0:         inner_object->begin(), inner_object->end(),
ferencd@0:         std::inserter(ret, ret.begin()),
ferencd@0:         [](typename BasicJsonType::object_t::value_type const & p)
ferencd@0:     {
ferencd@0:         return value_type(p.first, p.second.template get<typename ConstructibleObjectType::mapped_type>());
ferencd@0:     });
ferencd@0:     obj = std::move(ret);
ferencd@0: }
ferencd@0: 
ferencd@0: // overload for arithmetic types, not chosen for basic_json template arguments
ferencd@0: // (BooleanType, etc..); note: Is it really necessary to provide explicit
ferencd@0: // overloads for boolean_t etc. in case of a custom BooleanType which is not
ferencd@0: // an arithmetic type?
ferencd@0: template<typename BasicJsonType, typename ArithmeticType,
ferencd@0:          enable_if_t <
ferencd@0:              std::is_arithmetic<ArithmeticType>::value and
ferencd@0:              not std::is_same<ArithmeticType, typename BasicJsonType::number_unsigned_t>::value and
ferencd@0:              not std::is_same<ArithmeticType, typename BasicJsonType::number_integer_t>::value and
ferencd@0:              not std::is_same<ArithmeticType, typename BasicJsonType::number_float_t>::value and
ferencd@0:              not std::is_same<ArithmeticType, typename BasicJsonType::boolean_t>::value,
ferencd@0:              int> = 0>
ferencd@0: void from_json(const BasicJsonType& j, ArithmeticType& val)
ferencd@0: {
ferencd@0:     switch (static_cast<value_t>(j))
ferencd@0:     {
ferencd@0:         case value_t::number_unsigned:
ferencd@0:         {
ferencd@0:             val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_unsigned_t*>());
ferencd@0:             break;
ferencd@0:         }
ferencd@0:         case value_t::number_integer:
ferencd@0:         {
ferencd@0:             val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_integer_t*>());
ferencd@0:             break;
ferencd@0:         }
ferencd@0:         case value_t::number_float:
ferencd@0:         {
ferencd@0:             val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::number_float_t*>());
ferencd@0:             break;
ferencd@0:         }
ferencd@0:         case value_t::boolean:
ferencd@0:         {
ferencd@0:             val = static_cast<ArithmeticType>(*j.template get_ptr<const typename BasicJsonType::boolean_t*>());
ferencd@0:             break;
ferencd@0:         }
ferencd@0: 
ferencd@0:         default:
ferencd@0:             JSON_THROW(type_error::create(302, "type must be number, but is " + std::string(j.type_name())));
ferencd@0:     }
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType, typename A1, typename A2>
ferencd@0: void from_json(const BasicJsonType& j, std::pair<A1, A2>& p)
ferencd@0: {
ferencd@0:     p = {j.at(0).template get<A1>(), j.at(1).template get<A2>()};
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType, typename Tuple, std::size_t... Idx>
ferencd@0: void from_json_tuple_impl(const BasicJsonType& j, Tuple& t, index_sequence<Idx...> /*unused*/)
ferencd@0: {
ferencd@0:     t = std::make_tuple(j.at(Idx).template get<typename std::tuple_element<Idx, Tuple>::type>()...);
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType, typename... Args>
ferencd@0: void from_json(const BasicJsonType& j, std::tuple<Args...>& t)
ferencd@0: {
ferencd@0:     from_json_tuple_impl(j, t, index_sequence_for<Args...> {});
ferencd@0: }
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename Key, typename Value, typename Compare, typename Allocator,
ferencd@0:           typename = enable_if_t<not std::is_constructible<
ferencd@0:                                      typename BasicJsonType::string_t, Key>::value>>
ferencd@0: void from_json(const BasicJsonType& j, std::map<Key, Value, Compare, Allocator>& m)
ferencd@0: {
ferencd@0:     if (JSON_HEDLEY_UNLIKELY(not j.is_array()))
ferencd@0:     {
ferencd@0:         JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name())));
ferencd@0:     }
ferencd@0:     m.clear();
ferencd@0:     for (const auto& p : j)
ferencd@0:     {
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not p.is_array()))
ferencd@0:         {
ferencd@0:             JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(p.type_name())));
ferencd@0:         }
ferencd@0:         m.emplace(p.at(0).template get<Key>(), p.at(1).template get<Value>());
ferencd@0:     }
ferencd@0: }
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename Key, typename Value, typename Hash, typename KeyEqual, typename Allocator,
ferencd@0:           typename = enable_if_t<not std::is_constructible<
ferencd@0:                                      typename BasicJsonType::string_t, Key>::value>>
ferencd@0: void from_json(const BasicJsonType& j, std::unordered_map<Key, Value, Hash, KeyEqual, Allocator>& m)
ferencd@0: {
ferencd@0:     if (JSON_HEDLEY_UNLIKELY(not j.is_array()))
ferencd@0:     {
ferencd@0:         JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(j.type_name())));
ferencd@0:     }
ferencd@0:     m.clear();
ferencd@0:     for (const auto& p : j)
ferencd@0:     {
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not p.is_array()))
ferencd@0:         {
ferencd@0:             JSON_THROW(type_error::create(302, "type must be array, but is " + std::string(p.type_name())));
ferencd@0:         }
ferencd@0:         m.emplace(p.at(0).template get<Key>(), p.at(1).template get<Value>());
ferencd@0:     }
ferencd@0: }
ferencd@0: 
ferencd@0: struct from_json_fn
ferencd@0: {
ferencd@0:     template<typename BasicJsonType, typename T>
ferencd@0:     auto operator()(const BasicJsonType& j, T& val) const
ferencd@0:     noexcept(noexcept(from_json(j, val)))
ferencd@0:     -> decltype(from_json(j, val), void())
ferencd@0:     {
ferencd@0:         return from_json(j, val);
ferencd@0:     }
ferencd@0: };
ferencd@0: }  // namespace detail
ferencd@0: 
ferencd@0: /// namespace to hold default `from_json` function
ferencd@0: /// to see why this is required:
ferencd@0: /// http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2015/n4381.html
ferencd@0: namespace
ferencd@0: {
ferencd@0: constexpr const auto& from_json = detail::static_const<detail::from_json_fn>::value;
ferencd@0: } // namespace
ferencd@0: } // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/conversions/to_json.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <algorithm> // copy
ferencd@0: #include <ciso646> // or, and, not
ferencd@0: #include <iterator> // begin, end
ferencd@0: #include <string> // string
ferencd@0: #include <tuple> // tuple, get
ferencd@0: #include <type_traits> // is_same, is_constructible, is_floating_point, is_enum, underlying_type
ferencd@0: #include <utility> // move, forward, declval, pair
ferencd@0: #include <valarray> // valarray
ferencd@0: #include <vector> // vector
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/iterators/iteration_proxy.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <cstddef> // size_t
ferencd@0: #include <iterator> // input_iterator_tag
ferencd@0: #include <string> // string, to_string
ferencd@0: #include <tuple> // tuple_size, get, tuple_element
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/meta/type_traits.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/value_t.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: template <typename IteratorType> class iteration_proxy_value
ferencd@0: {
ferencd@0:   public:
ferencd@0:     using difference_type = std::ptrdiff_t;
ferencd@0:     using value_type = iteration_proxy_value;
ferencd@0:     using pointer = value_type * ;
ferencd@0:     using reference = value_type & ;
ferencd@0:     using iterator_category = std::input_iterator_tag;
ferencd@0: 
ferencd@0:   private:
ferencd@0:     /// the iterator
ferencd@0:     IteratorType anchor;
ferencd@0:     /// an index for arrays (used to create key names)
ferencd@0:     std::size_t array_index = 0;
ferencd@0:     /// last stringified array index
ferencd@0:     mutable std::size_t array_index_last = 0;
ferencd@0:     /// a string representation of the array index
ferencd@0:     mutable std::string array_index_str = "0";
ferencd@0:     /// an empty string (to return a reference for primitive values)
ferencd@0:     const std::string empty_str = "";
ferencd@0: 
ferencd@0:   public:
ferencd@0:     explicit iteration_proxy_value(IteratorType it) noexcept : anchor(it) {}
ferencd@0: 
ferencd@0:     /// dereference operator (needed for range-based for)
ferencd@0:     iteration_proxy_value& operator*()
ferencd@0:     {
ferencd@0:         return *this;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// increment operator (needed for range-based for)
ferencd@0:     iteration_proxy_value& operator++()
ferencd@0:     {
ferencd@0:         ++anchor;
ferencd@0:         ++array_index;
ferencd@0: 
ferencd@0:         return *this;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// equality operator (needed for InputIterator)
ferencd@0:     bool operator==(const iteration_proxy_value& o) const
ferencd@0:     {
ferencd@0:         return anchor == o.anchor;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// inequality operator (needed for range-based for)
ferencd@0:     bool operator!=(const iteration_proxy_value& o) const
ferencd@0:     {
ferencd@0:         return anchor != o.anchor;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// return key of the iterator
ferencd@0:     const std::string& key() const
ferencd@0:     {
ferencd@0:         assert(anchor.m_object != nullptr);
ferencd@0: 
ferencd@0:         switch (anchor.m_object->type())
ferencd@0:         {
ferencd@0:             // use integer array index as key
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 if (array_index != array_index_last)
ferencd@0:                 {
ferencd@0:                     array_index_str = std::to_string(array_index);
ferencd@0:                     array_index_last = array_index;
ferencd@0:                 }
ferencd@0:                 return array_index_str;
ferencd@0:             }
ferencd@0: 
ferencd@0:             // use key from the object
ferencd@0:             case value_t::object:
ferencd@0:                 return anchor.key();
ferencd@0: 
ferencd@0:             // use an empty key for all primitive types
ferencd@0:             default:
ferencd@0:                 return empty_str;
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// return value of the iterator
ferencd@0:     typename IteratorType::reference value() const
ferencd@0:     {
ferencd@0:         return anchor.value();
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: /// proxy class for the items() function
ferencd@0: template<typename IteratorType> class iteration_proxy
ferencd@0: {
ferencd@0:   private:
ferencd@0:     /// the container to iterate
ferencd@0:     typename IteratorType::reference container;
ferencd@0: 
ferencd@0:   public:
ferencd@0:     /// construct iteration proxy from a container
ferencd@0:     explicit iteration_proxy(typename IteratorType::reference cont) noexcept
ferencd@0:         : container(cont) {}
ferencd@0: 
ferencd@0:     /// return iterator begin (needed for range-based for)
ferencd@0:     iteration_proxy_value<IteratorType> begin() noexcept
ferencd@0:     {
ferencd@0:         return iteration_proxy_value<IteratorType>(container.begin());
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// return iterator end (needed for range-based for)
ferencd@0:     iteration_proxy_value<IteratorType> end() noexcept
ferencd@0:     {
ferencd@0:         return iteration_proxy_value<IteratorType>(container.end());
ferencd@0:     }
ferencd@0: };
ferencd@0: // Structured Bindings Support
ferencd@0: // For further reference see https://blog.tartanllama.xyz/structured-bindings/
ferencd@0: // And see https://github.com/nlohmann/json/pull/1391
ferencd@0: template <std::size_t N, typename IteratorType, enable_if_t<N == 0, int> = 0>
ferencd@0: auto get(const nlohmann::detail::iteration_proxy_value<IteratorType>& i) -> decltype(i.key())
ferencd@0: {
ferencd@0:     return i.key();
ferencd@0: }
ferencd@0: // Structured Bindings Support
ferencd@0: // For further reference see https://blog.tartanllama.xyz/structured-bindings/
ferencd@0: // And see https://github.com/nlohmann/json/pull/1391
ferencd@0: template <std::size_t N, typename IteratorType, enable_if_t<N == 1, int> = 0>
ferencd@0: auto get(const nlohmann::detail::iteration_proxy_value<IteratorType>& i) -> decltype(i.value())
ferencd@0: {
ferencd@0:     return i.value();
ferencd@0: }
ferencd@0: }  // namespace detail
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: // The Addition to the STD Namespace is required to add
ferencd@0: // Structured Bindings Support to the iteration_proxy_value class
ferencd@0: // For further reference see https://blog.tartanllama.xyz/structured-bindings/
ferencd@0: // And see https://github.com/nlohmann/json/pull/1391
ferencd@0: namespace std
ferencd@0: {
ferencd@0: #if defined(__clang__)
ferencd@0:     // Fix: https://github.com/nlohmann/json/issues/1401
ferencd@0:     #pragma clang diagnostic push
ferencd@0:     #pragma clang diagnostic ignored "-Wmismatched-tags"
ferencd@0: #endif
ferencd@0: template <typename IteratorType>
ferencd@0: class tuple_size<::nlohmann::detail::iteration_proxy_value<IteratorType>>
ferencd@0:             : public std::integral_constant<std::size_t, 2> {};
ferencd@0: 
ferencd@0: template <std::size_t N, typename IteratorType>
ferencd@0: class tuple_element<N, ::nlohmann::detail::iteration_proxy_value<IteratorType >>
ferencd@0: {
ferencd@0:   public:
ferencd@0:     using type = decltype(
ferencd@0:                      get<N>(std::declval <
ferencd@0:                             ::nlohmann::detail::iteration_proxy_value<IteratorType >> ()));
ferencd@0: };
ferencd@0: #if defined(__clang__)
ferencd@0:     #pragma clang diagnostic pop
ferencd@0: #endif
ferencd@0: } // namespace std
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/meta/cpp_future.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/meta/type_traits.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/value_t.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: //////////////////
ferencd@0: // constructors //
ferencd@0: //////////////////
ferencd@0: 
ferencd@0: template<value_t> struct external_constructor;
ferencd@0: 
ferencd@0: template<>
ferencd@0: struct external_constructor<value_t::boolean>
ferencd@0: {
ferencd@0:     template<typename BasicJsonType>
ferencd@0:     static void construct(BasicJsonType& j, typename BasicJsonType::boolean_t b) noexcept
ferencd@0:     {
ferencd@0:         j.m_type = value_t::boolean;
ferencd@0:         j.m_value = b;
ferencd@0:         j.assert_invariant();
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: template<>
ferencd@0: struct external_constructor<value_t::string>
ferencd@0: {
ferencd@0:     template<typename BasicJsonType>
ferencd@0:     static void construct(BasicJsonType& j, const typename BasicJsonType::string_t& s)
ferencd@0:     {
ferencd@0:         j.m_type = value_t::string;
ferencd@0:         j.m_value = s;
ferencd@0:         j.assert_invariant();
ferencd@0:     }
ferencd@0: 
ferencd@0:     template<typename BasicJsonType>
ferencd@0:     static void construct(BasicJsonType& j, typename BasicJsonType::string_t&& s)
ferencd@0:     {
ferencd@0:         j.m_type = value_t::string;
ferencd@0:         j.m_value = std::move(s);
ferencd@0:         j.assert_invariant();
ferencd@0:     }
ferencd@0: 
ferencd@0:     template<typename BasicJsonType, typename CompatibleStringType,
ferencd@0:              enable_if_t<not std::is_same<CompatibleStringType, typename BasicJsonType::string_t>::value,
ferencd@0:                          int> = 0>
ferencd@0:     static void construct(BasicJsonType& j, const CompatibleStringType& str)
ferencd@0:     {
ferencd@0:         j.m_type = value_t::string;
ferencd@0:         j.m_value.string = j.template create<typename BasicJsonType::string_t>(str);
ferencd@0:         j.assert_invariant();
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: template<>
ferencd@0: struct external_constructor<value_t::number_float>
ferencd@0: {
ferencd@0:     template<typename BasicJsonType>
ferencd@0:     static void construct(BasicJsonType& j, typename BasicJsonType::number_float_t val) noexcept
ferencd@0:     {
ferencd@0:         j.m_type = value_t::number_float;
ferencd@0:         j.m_value = val;
ferencd@0:         j.assert_invariant();
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: template<>
ferencd@0: struct external_constructor<value_t::number_unsigned>
ferencd@0: {
ferencd@0:     template<typename BasicJsonType>
ferencd@0:     static void construct(BasicJsonType& j, typename BasicJsonType::number_unsigned_t val) noexcept
ferencd@0:     {
ferencd@0:         j.m_type = value_t::number_unsigned;
ferencd@0:         j.m_value = val;
ferencd@0:         j.assert_invariant();
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: template<>
ferencd@0: struct external_constructor<value_t::number_integer>
ferencd@0: {
ferencd@0:     template<typename BasicJsonType>
ferencd@0:     static void construct(BasicJsonType& j, typename BasicJsonType::number_integer_t val) noexcept
ferencd@0:     {
ferencd@0:         j.m_type = value_t::number_integer;
ferencd@0:         j.m_value = val;
ferencd@0:         j.assert_invariant();
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: template<>
ferencd@0: struct external_constructor<value_t::array>
ferencd@0: {
ferencd@0:     template<typename BasicJsonType>
ferencd@0:     static void construct(BasicJsonType& j, const typename BasicJsonType::array_t& arr)
ferencd@0:     {
ferencd@0:         j.m_type = value_t::array;
ferencd@0:         j.m_value = arr;
ferencd@0:         j.assert_invariant();
ferencd@0:     }
ferencd@0: 
ferencd@0:     template<typename BasicJsonType>
ferencd@0:     static void construct(BasicJsonType& j, typename BasicJsonType::array_t&& arr)
ferencd@0:     {
ferencd@0:         j.m_type = value_t::array;
ferencd@0:         j.m_value = std::move(arr);
ferencd@0:         j.assert_invariant();
ferencd@0:     }
ferencd@0: 
ferencd@0:     template<typename BasicJsonType, typename CompatibleArrayType,
ferencd@0:              enable_if_t<not std::is_same<CompatibleArrayType, typename BasicJsonType::array_t>::value,
ferencd@0:                          int> = 0>
ferencd@0:     static void construct(BasicJsonType& j, const CompatibleArrayType& arr)
ferencd@0:     {
ferencd@0:         using std::begin;
ferencd@0:         using std::end;
ferencd@0:         j.m_type = value_t::array;
ferencd@0:         j.m_value.array = j.template create<typename BasicJsonType::array_t>(begin(arr), end(arr));
ferencd@0:         j.assert_invariant();
ferencd@0:     }
ferencd@0: 
ferencd@0:     template<typename BasicJsonType>
ferencd@0:     static void construct(BasicJsonType& j, const std::vector<bool>& arr)
ferencd@0:     {
ferencd@0:         j.m_type = value_t::array;
ferencd@0:         j.m_value = value_t::array;
ferencd@0:         j.m_value.array->reserve(arr.size());
ferencd@0:         for (const bool x : arr)
ferencd@0:         {
ferencd@0:             j.m_value.array->push_back(x);
ferencd@0:         }
ferencd@0:         j.assert_invariant();
ferencd@0:     }
ferencd@0: 
ferencd@0:     template<typename BasicJsonType, typename T,
ferencd@0:              enable_if_t<std::is_convertible<T, BasicJsonType>::value, int> = 0>
ferencd@0:     static void construct(BasicJsonType& j, const std::valarray<T>& arr)
ferencd@0:     {
ferencd@0:         j.m_type = value_t::array;
ferencd@0:         j.m_value = value_t::array;
ferencd@0:         j.m_value.array->resize(arr.size());
ferencd@0:         std::copy(std::begin(arr), std::end(arr), j.m_value.array->begin());
ferencd@0:         j.assert_invariant();
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: template<>
ferencd@0: struct external_constructor<value_t::object>
ferencd@0: {
ferencd@0:     template<typename BasicJsonType>
ferencd@0:     static void construct(BasicJsonType& j, const typename BasicJsonType::object_t& obj)
ferencd@0:     {
ferencd@0:         j.m_type = value_t::object;
ferencd@0:         j.m_value = obj;
ferencd@0:         j.assert_invariant();
ferencd@0:     }
ferencd@0: 
ferencd@0:     template<typename BasicJsonType>
ferencd@0:     static void construct(BasicJsonType& j, typename BasicJsonType::object_t&& obj)
ferencd@0:     {
ferencd@0:         j.m_type = value_t::object;
ferencd@0:         j.m_value = std::move(obj);
ferencd@0:         j.assert_invariant();
ferencd@0:     }
ferencd@0: 
ferencd@0:     template<typename BasicJsonType, typename CompatibleObjectType,
ferencd@0:              enable_if_t<not std::is_same<CompatibleObjectType, typename BasicJsonType::object_t>::value, int> = 0>
ferencd@0:     static void construct(BasicJsonType& j, const CompatibleObjectType& obj)
ferencd@0:     {
ferencd@0:         using std::begin;
ferencd@0:         using std::end;
ferencd@0: 
ferencd@0:         j.m_type = value_t::object;
ferencd@0:         j.m_value.object = j.template create<typename BasicJsonType::object_t>(begin(obj), end(obj));
ferencd@0:         j.assert_invariant();
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: /////////////
ferencd@0: // to_json //
ferencd@0: /////////////
ferencd@0: 
ferencd@0: template<typename BasicJsonType, typename T,
ferencd@0:          enable_if_t<std::is_same<T, typename BasicJsonType::boolean_t>::value, int> = 0>
ferencd@0: void to_json(BasicJsonType& j, T b) noexcept
ferencd@0: {
ferencd@0:     external_constructor<value_t::boolean>::construct(j, b);
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType, typename CompatibleString,
ferencd@0:          enable_if_t<std::is_constructible<typename BasicJsonType::string_t, CompatibleString>::value, int> = 0>
ferencd@0: void to_json(BasicJsonType& j, const CompatibleString& s)
ferencd@0: {
ferencd@0:     external_constructor<value_t::string>::construct(j, s);
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType>
ferencd@0: void to_json(BasicJsonType& j, typename BasicJsonType::string_t&& s)
ferencd@0: {
ferencd@0:     external_constructor<value_t::string>::construct(j, std::move(s));
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType, typename FloatType,
ferencd@0:          enable_if_t<std::is_floating_point<FloatType>::value, int> = 0>
ferencd@0: void to_json(BasicJsonType& j, FloatType val) noexcept
ferencd@0: {
ferencd@0:     external_constructor<value_t::number_float>::construct(j, static_cast<typename BasicJsonType::number_float_t>(val));
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType, typename CompatibleNumberUnsignedType,
ferencd@0:          enable_if_t<is_compatible_integer_type<typename BasicJsonType::number_unsigned_t, CompatibleNumberUnsignedType>::value, int> = 0>
ferencd@0: void to_json(BasicJsonType& j, CompatibleNumberUnsignedType val) noexcept
ferencd@0: {
ferencd@0:     external_constructor<value_t::number_unsigned>::construct(j, static_cast<typename BasicJsonType::number_unsigned_t>(val));
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType, typename CompatibleNumberIntegerType,
ferencd@0:          enable_if_t<is_compatible_integer_type<typename BasicJsonType::number_integer_t, CompatibleNumberIntegerType>::value, int> = 0>
ferencd@0: void to_json(BasicJsonType& j, CompatibleNumberIntegerType val) noexcept
ferencd@0: {
ferencd@0:     external_constructor<value_t::number_integer>::construct(j, static_cast<typename BasicJsonType::number_integer_t>(val));
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType, typename EnumType,
ferencd@0:          enable_if_t<std::is_enum<EnumType>::value, int> = 0>
ferencd@0: void to_json(BasicJsonType& j, EnumType e) noexcept
ferencd@0: {
ferencd@0:     using underlying_type = typename std::underlying_type<EnumType>::type;
ferencd@0:     external_constructor<value_t::number_integer>::construct(j, static_cast<underlying_type>(e));
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType>
ferencd@0: void to_json(BasicJsonType& j, const std::vector<bool>& e)
ferencd@0: {
ferencd@0:     external_constructor<value_t::array>::construct(j, e);
ferencd@0: }
ferencd@0: 
ferencd@0: template <typename BasicJsonType, typename CompatibleArrayType,
ferencd@0:           enable_if_t<is_compatible_array_type<BasicJsonType,
ferencd@0:                       CompatibleArrayType>::value and
ferencd@0:                       not is_compatible_object_type<
ferencd@0:                           BasicJsonType, CompatibleArrayType>::value and
ferencd@0:                       not is_compatible_string_type<BasicJsonType, CompatibleArrayType>::value and
ferencd@0:                       not is_basic_json<CompatibleArrayType>::value,
ferencd@0:                       int> = 0>
ferencd@0: void to_json(BasicJsonType& j, const CompatibleArrayType& arr)
ferencd@0: {
ferencd@0:     external_constructor<value_t::array>::construct(j, arr);
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType, typename T,
ferencd@0:          enable_if_t<std::is_convertible<T, BasicJsonType>::value, int> = 0>
ferencd@0: void to_json(BasicJsonType& j, const std::valarray<T>& arr)
ferencd@0: {
ferencd@0:     external_constructor<value_t::array>::construct(j, std::move(arr));
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType>
ferencd@0: void to_json(BasicJsonType& j, typename BasicJsonType::array_t&& arr)
ferencd@0: {
ferencd@0:     external_constructor<value_t::array>::construct(j, std::move(arr));
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType, typename CompatibleObjectType,
ferencd@0:          enable_if_t<is_compatible_object_type<BasicJsonType, CompatibleObjectType>::value and not is_basic_json<CompatibleObjectType>::value, int> = 0>
ferencd@0: void to_json(BasicJsonType& j, const CompatibleObjectType& obj)
ferencd@0: {
ferencd@0:     external_constructor<value_t::object>::construct(j, obj);
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType>
ferencd@0: void to_json(BasicJsonType& j, typename BasicJsonType::object_t&& obj)
ferencd@0: {
ferencd@0:     external_constructor<value_t::object>::construct(j, std::move(obj));
ferencd@0: }
ferencd@0: 
ferencd@0: template <
ferencd@0:     typename BasicJsonType, typename T, std::size_t N,
ferencd@0:     enable_if_t<not std::is_constructible<typename BasicJsonType::string_t,
ferencd@0:                 const T(&)[N]>::value,
ferencd@0:                 int> = 0 >
ferencd@0: void to_json(BasicJsonType& j, const T(&arr)[N])
ferencd@0: {
ferencd@0:     external_constructor<value_t::array>::construct(j, arr);
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType, typename... Args>
ferencd@0: void to_json(BasicJsonType& j, const std::pair<Args...>& p)
ferencd@0: {
ferencd@0:     j = { p.first, p.second };
ferencd@0: }
ferencd@0: 
ferencd@0: // for https://github.com/nlohmann/json/pull/1134
ferencd@0: template < typename BasicJsonType, typename T,
ferencd@0:            enable_if_t<std::is_same<T, iteration_proxy_value<typename BasicJsonType::iterator>>::value, int> = 0>
ferencd@0: void to_json(BasicJsonType& j, const T& b)
ferencd@0: {
ferencd@0:     j = { {b.key(), b.value()} };
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType, typename Tuple, std::size_t... Idx>
ferencd@0: void to_json_tuple_impl(BasicJsonType& j, const Tuple& t, index_sequence<Idx...> /*unused*/)
ferencd@0: {
ferencd@0:     j = { std::get<Idx>(t)... };
ferencd@0: }
ferencd@0: 
ferencd@0: template<typename BasicJsonType, typename... Args>
ferencd@0: void to_json(BasicJsonType& j, const std::tuple<Args...>& t)
ferencd@0: {
ferencd@0:     to_json_tuple_impl(j, t, index_sequence_for<Args...> {});
ferencd@0: }
ferencd@0: 
ferencd@0: struct to_json_fn
ferencd@0: {
ferencd@0:     template<typename BasicJsonType, typename T>
ferencd@0:     auto operator()(BasicJsonType& j, T&& val) const noexcept(noexcept(to_json(j, std::forward<T>(val))))
ferencd@0:     -> decltype(to_json(j, std::forward<T>(val)), void())
ferencd@0:     {
ferencd@0:         return to_json(j, std::forward<T>(val));
ferencd@0:     }
ferencd@0: };
ferencd@0: }  // namespace detail
ferencd@0: 
ferencd@0: /// namespace to hold default `to_json` function
ferencd@0: namespace
ferencd@0: {
ferencd@0: constexpr const auto& to_json = detail::static_const<detail::to_json_fn>::value;
ferencd@0: } // namespace
ferencd@0: } // namespace nlohmann
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: 
ferencd@0: template<typename, typename>
ferencd@0: struct adl_serializer
ferencd@0: {
ferencd@0:     /*!
ferencd@0:     @brief convert a JSON value to any value type
ferencd@0: 
ferencd@0:     This function is usually called by the `get()` function of the
ferencd@0:     @ref basic_json class (either explicit or via conversion operators).
ferencd@0: 
ferencd@0:     @param[in] j        JSON value to read from
ferencd@0:     @param[in,out] val  value to write to
ferencd@0:     */
ferencd@0:     template<typename BasicJsonType, typename ValueType>
ferencd@0:     static auto from_json(BasicJsonType&& j, ValueType& val) noexcept(
ferencd@0:         noexcept(::nlohmann::from_json(std::forward<BasicJsonType>(j), val)))
ferencd@0:     -> decltype(::nlohmann::from_json(std::forward<BasicJsonType>(j), val), void())
ferencd@0:     {
ferencd@0:         ::nlohmann::from_json(std::forward<BasicJsonType>(j), val);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief convert any value type to a JSON value
ferencd@0: 
ferencd@0:     This function is usually called by the constructors of the @ref basic_json
ferencd@0:     class.
ferencd@0: 
ferencd@0:     @param[in,out] j  JSON value to write to
ferencd@0:     @param[in] val    value to read from
ferencd@0:     */
ferencd@0:     template <typename BasicJsonType, typename ValueType>
ferencd@0:     static auto to_json(BasicJsonType& j, ValueType&& val) noexcept(
ferencd@0:         noexcept(::nlohmann::to_json(j, std::forward<ValueType>(val))))
ferencd@0:     -> decltype(::nlohmann::to_json(j, std::forward<ValueType>(val)), void())
ferencd@0:     {
ferencd@0:         ::nlohmann::to_json(j, std::forward<ValueType>(val));
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/conversions/from_json.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/conversions/to_json.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/exceptions.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/input/binary_reader.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <algorithm> // generate_n
ferencd@0: #include <array> // array
ferencd@0: #include <cassert> // assert
ferencd@0: #include <cmath> // ldexp
ferencd@0: #include <cstddef> // size_t
ferencd@0: #include <cstdint> // uint8_t, uint16_t, uint32_t, uint64_t
ferencd@0: #include <cstdio> // snprintf
ferencd@0: #include <cstring> // memcpy
ferencd@0: #include <iterator> // back_inserter
ferencd@0: #include <limits> // numeric_limits
ferencd@0: #include <string> // char_traits, string
ferencd@0: #include <utility> // make_pair, move
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/exceptions.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/input/input_adapters.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <array> // array
ferencd@0: #include <cassert> // assert
ferencd@0: #include <cstddef> // size_t
ferencd@0: #include <cstdio> //FILE *
ferencd@0: #include <cstring> // strlen
ferencd@0: #include <istream> // istream
ferencd@0: #include <iterator> // begin, end, iterator_traits, random_access_iterator_tag, distance, next
ferencd@0: #include <memory> // shared_ptr, make_shared, addressof
ferencd@0: #include <numeric> // accumulate
ferencd@0: #include <string> // string, char_traits
ferencd@0: #include <type_traits> // enable_if, is_base_of, is_pointer, is_integral, remove_pointer
ferencd@0: #include <utility> // pair, declval
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/iterators/iterator_traits.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/macro_scope.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: /// the supported input formats
ferencd@0: enum class input_format_t { json, cbor, msgpack, ubjson, bson };
ferencd@0: 
ferencd@0: ////////////////////
ferencd@0: // input adapters //
ferencd@0: ////////////////////
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief abstract input adapter interface
ferencd@0: 
ferencd@0: Produces a stream of std::char_traits<char>::int_type characters from a
ferencd@0: std::istream, a buffer, or some other input type. Accepts the return of
ferencd@0: exactly one non-EOF character for future input. The int_type characters
ferencd@0: returned consist of all valid char values as positive values (typically
ferencd@0: unsigned char), plus an EOF value outside that range, specified by the value
ferencd@0: of the function std::char_traits<char>::eof(). This value is typically -1, but
ferencd@0: could be any arbitrary value which is not a valid char value.
ferencd@0: */
ferencd@0: struct input_adapter_protocol
ferencd@0: {
ferencd@0:     /// get a character [0,255] or std::char_traits<char>::eof().
ferencd@0:     virtual std::char_traits<char>::int_type get_character() = 0;
ferencd@0:     virtual ~input_adapter_protocol() = default;
ferencd@0: };
ferencd@0: 
ferencd@0: /// a type to simplify interfaces
ferencd@0: using input_adapter_t = std::shared_ptr<input_adapter_protocol>;
ferencd@0: 
ferencd@0: /*!
ferencd@0: Input adapter for stdio file access. This adapter read only 1 byte and do not use any
ferencd@0:  buffer. This adapter is a very low level adapter.
ferencd@0: */
ferencd@0: class file_input_adapter : public input_adapter_protocol
ferencd@0: {
ferencd@0:   public:
ferencd@0:     JSON_HEDLEY_NON_NULL(2)
ferencd@0:     explicit file_input_adapter(std::FILE* f)  noexcept
ferencd@0:         : m_file(f)
ferencd@0:     {}
ferencd@0: 
ferencd@0:     // make class move-only
ferencd@0:     file_input_adapter(const file_input_adapter&) = delete;
ferencd@0:     file_input_adapter(file_input_adapter&&) = default;
ferencd@0:     file_input_adapter& operator=(const file_input_adapter&) = delete;
ferencd@0:     file_input_adapter& operator=(file_input_adapter&&) = default;
ferencd@0:     ~file_input_adapter() override = default;
ferencd@0: 
ferencd@0:     std::char_traits<char>::int_type get_character() noexcept override
ferencd@0:     {
ferencd@0:         return std::fgetc(m_file);
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     /// the file pointer to read from
ferencd@0:     std::FILE* m_file;
ferencd@0: };
ferencd@0: 
ferencd@0: 
ferencd@0: /*!
ferencd@0: Input adapter for a (caching) istream. Ignores a UFT Byte Order Mark at
ferencd@0: beginning of input. Does not support changing the underlying std::streambuf
ferencd@0: in mid-input. Maintains underlying std::istream and std::streambuf to support
ferencd@0: subsequent use of standard std::istream operations to process any input
ferencd@0: characters following those used in parsing the JSON input.  Clears the
ferencd@0: std::istream flags; any input errors (e.g., EOF) will be detected by the first
ferencd@0: subsequent call for input from the std::istream.
ferencd@0: */
ferencd@0: class input_stream_adapter : public input_adapter_protocol
ferencd@0: {
ferencd@0:   public:
ferencd@0:     ~input_stream_adapter() override
ferencd@0:     {
ferencd@0:         // clear stream flags; we use underlying streambuf I/O, do not
ferencd@0:         // maintain ifstream flags, except eof
ferencd@0:         is.clear(is.rdstate() & std::ios::eofbit);
ferencd@0:     }
ferencd@0: 
ferencd@0:     explicit input_stream_adapter(std::istream& i)
ferencd@0:         : is(i), sb(*i.rdbuf())
ferencd@0:     {}
ferencd@0: 
ferencd@0:     // delete because of pointer members
ferencd@0:     input_stream_adapter(const input_stream_adapter&) = delete;
ferencd@0:     input_stream_adapter& operator=(input_stream_adapter&) = delete;
ferencd@0:     input_stream_adapter(input_stream_adapter&&) = delete;
ferencd@0:     input_stream_adapter& operator=(input_stream_adapter&&) = delete;
ferencd@0: 
ferencd@0:     // std::istream/std::streambuf use std::char_traits<char>::to_int_type, to
ferencd@0:     // ensure that std::char_traits<char>::eof() and the character 0xFF do not
ferencd@0:     // end up as the same value, eg. 0xFFFFFFFF.
ferencd@0:     std::char_traits<char>::int_type get_character() override
ferencd@0:     {
ferencd@0:         auto res = sb.sbumpc();
ferencd@0:         // set eof manually, as we don't use the istream interface.
ferencd@0:         if (res == EOF)
ferencd@0:         {
ferencd@0:             is.clear(is.rdstate() | std::ios::eofbit);
ferencd@0:         }
ferencd@0:         return res;
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     /// the associated input stream
ferencd@0:     std::istream& is;
ferencd@0:     std::streambuf& sb;
ferencd@0: };
ferencd@0: 
ferencd@0: /// input adapter for buffer input
ferencd@0: class input_buffer_adapter : public input_adapter_protocol
ferencd@0: {
ferencd@0:   public:
ferencd@0:     JSON_HEDLEY_NON_NULL(2)
ferencd@0:     input_buffer_adapter(const char* b, const std::size_t l) noexcept
ferencd@0:         : cursor(b), limit(b + l)
ferencd@0:     {}
ferencd@0: 
ferencd@0:     // delete because of pointer members
ferencd@0:     input_buffer_adapter(const input_buffer_adapter&) = delete;
ferencd@0:     input_buffer_adapter& operator=(input_buffer_adapter&) = delete;
ferencd@0:     input_buffer_adapter(input_buffer_adapter&&) = delete;
ferencd@0:     input_buffer_adapter& operator=(input_buffer_adapter&&) = delete;
ferencd@0:     ~input_buffer_adapter() override = default;
ferencd@0: 
ferencd@0:     std::char_traits<char>::int_type get_character() noexcept override
ferencd@0:     {
ferencd@0:         if (JSON_HEDLEY_LIKELY(cursor < limit))
ferencd@0:         {
ferencd@0:             return std::char_traits<char>::to_int_type(*(cursor++));
ferencd@0:         }
ferencd@0: 
ferencd@0:         return std::char_traits<char>::eof();
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     /// pointer to the current character
ferencd@0:     const char* cursor;
ferencd@0:     /// pointer past the last character
ferencd@0:     const char* const limit;
ferencd@0: };
ferencd@0: 
ferencd@0: template<typename WideStringType, size_t T>
ferencd@0: struct wide_string_input_helper
ferencd@0: {
ferencd@0:     // UTF-32
ferencd@0:     static void fill_buffer(const WideStringType& str,
ferencd@0:                             size_t& current_wchar,
ferencd@0:                             std::array<std::char_traits<char>::int_type, 4>& utf8_bytes,
ferencd@0:                             size_t& utf8_bytes_index,
ferencd@0:                             size_t& utf8_bytes_filled)
ferencd@0:     {
ferencd@0:         utf8_bytes_index = 0;
ferencd@0: 
ferencd@0:         if (current_wchar == str.size())
ferencd@0:         {
ferencd@0:             utf8_bytes[0] = std::char_traits<char>::eof();
ferencd@0:             utf8_bytes_filled = 1;
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             // get the current character
ferencd@0:             const auto wc = static_cast<unsigned int>(str[current_wchar++]);
ferencd@0: 
ferencd@0:             // UTF-32 to UTF-8 encoding
ferencd@0:             if (wc < 0x80)
ferencd@0:             {
ferencd@0:                 utf8_bytes[0] = static_cast<std::char_traits<char>::int_type>(wc);
ferencd@0:                 utf8_bytes_filled = 1;
ferencd@0:             }
ferencd@0:             else if (wc <= 0x7FF)
ferencd@0:             {
ferencd@0:                 utf8_bytes[0] = static_cast<std::char_traits<char>::int_type>(0xC0u | ((wc >> 6u) & 0x1Fu));
ferencd@0:                 utf8_bytes[1] = static_cast<std::char_traits<char>::int_type>(0x80u | (wc & 0x3Fu));
ferencd@0:                 utf8_bytes_filled = 2;
ferencd@0:             }
ferencd@0:             else if (wc <= 0xFFFF)
ferencd@0:             {
ferencd@0:                 utf8_bytes[0] = static_cast<std::char_traits<char>::int_type>(0xE0u | ((wc >> 12u) & 0x0Fu));
ferencd@0:                 utf8_bytes[1] = static_cast<std::char_traits<char>::int_type>(0x80u | ((wc >> 6u) & 0x3Fu));
ferencd@0:                 utf8_bytes[2] = static_cast<std::char_traits<char>::int_type>(0x80u | (wc & 0x3Fu));
ferencd@0:                 utf8_bytes_filled = 3;
ferencd@0:             }
ferencd@0:             else if (wc <= 0x10FFFF)
ferencd@0:             {
ferencd@0:                 utf8_bytes[0] = static_cast<std::char_traits<char>::int_type>(0xF0u | ((wc >> 18u) & 0x07u));
ferencd@0:                 utf8_bytes[1] = static_cast<std::char_traits<char>::int_type>(0x80u | ((wc >> 12u) & 0x3Fu));
ferencd@0:                 utf8_bytes[2] = static_cast<std::char_traits<char>::int_type>(0x80u | ((wc >> 6u) & 0x3Fu));
ferencd@0:                 utf8_bytes[3] = static_cast<std::char_traits<char>::int_type>(0x80u | (wc & 0x3Fu));
ferencd@0:                 utf8_bytes_filled = 4;
ferencd@0:             }
ferencd@0:             else
ferencd@0:             {
ferencd@0:                 // unknown character
ferencd@0:                 utf8_bytes[0] = static_cast<std::char_traits<char>::int_type>(wc);
ferencd@0:                 utf8_bytes_filled = 1;
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: template<typename WideStringType>
ferencd@0: struct wide_string_input_helper<WideStringType, 2>
ferencd@0: {
ferencd@0:     // UTF-16
ferencd@0:     static void fill_buffer(const WideStringType& str,
ferencd@0:                             size_t& current_wchar,
ferencd@0:                             std::array<std::char_traits<char>::int_type, 4>& utf8_bytes,
ferencd@0:                             size_t& utf8_bytes_index,
ferencd@0:                             size_t& utf8_bytes_filled)
ferencd@0:     {
ferencd@0:         utf8_bytes_index = 0;
ferencd@0: 
ferencd@0:         if (current_wchar == str.size())
ferencd@0:         {
ferencd@0:             utf8_bytes[0] = std::char_traits<char>::eof();
ferencd@0:             utf8_bytes_filled = 1;
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             // get the current character
ferencd@0:             const auto wc = static_cast<unsigned int>(str[current_wchar++]);
ferencd@0: 
ferencd@0:             // UTF-16 to UTF-8 encoding
ferencd@0:             if (wc < 0x80)
ferencd@0:             {
ferencd@0:                 utf8_bytes[0] = static_cast<std::char_traits<char>::int_type>(wc);
ferencd@0:                 utf8_bytes_filled = 1;
ferencd@0:             }
ferencd@0:             else if (wc <= 0x7FF)
ferencd@0:             {
ferencd@0:                 utf8_bytes[0] = static_cast<std::char_traits<char>::int_type>(0xC0u | ((wc >> 6u)));
ferencd@0:                 utf8_bytes[1] = static_cast<std::char_traits<char>::int_type>(0x80u | (wc & 0x3Fu));
ferencd@0:                 utf8_bytes_filled = 2;
ferencd@0:             }
ferencd@0:             else if (0xD800 > wc or wc >= 0xE000)
ferencd@0:             {
ferencd@0:                 utf8_bytes[0] = static_cast<std::char_traits<char>::int_type>(0xE0u | ((wc >> 12u)));
ferencd@0:                 utf8_bytes[1] = static_cast<std::char_traits<char>::int_type>(0x80u | ((wc >> 6u) & 0x3Fu));
ferencd@0:                 utf8_bytes[2] = static_cast<std::char_traits<char>::int_type>(0x80u | (wc & 0x3Fu));
ferencd@0:                 utf8_bytes_filled = 3;
ferencd@0:             }
ferencd@0:             else
ferencd@0:             {
ferencd@0:                 if (current_wchar < str.size())
ferencd@0:                 {
ferencd@0:                     const auto wc2 = static_cast<unsigned int>(str[current_wchar++]);
ferencd@0:                     const auto charcode = 0x10000u + (((wc & 0x3FFu) << 10u) | (wc2 & 0x3FFu));
ferencd@0:                     utf8_bytes[0] = static_cast<std::char_traits<char>::int_type>(0xF0u | (charcode >> 18u));
ferencd@0:                     utf8_bytes[1] = static_cast<std::char_traits<char>::int_type>(0x80u | ((charcode >> 12u) & 0x3Fu));
ferencd@0:                     utf8_bytes[2] = static_cast<std::char_traits<char>::int_type>(0x80u | ((charcode >> 6u) & 0x3Fu));
ferencd@0:                     utf8_bytes[3] = static_cast<std::char_traits<char>::int_type>(0x80u | (charcode & 0x3Fu));
ferencd@0:                     utf8_bytes_filled = 4;
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     // unknown character
ferencd@0:                     ++current_wchar;
ferencd@0:                     utf8_bytes[0] = static_cast<std::char_traits<char>::int_type>(wc);
ferencd@0:                     utf8_bytes_filled = 1;
ferencd@0:                 }
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: template<typename WideStringType>
ferencd@0: class wide_string_input_adapter : public input_adapter_protocol
ferencd@0: {
ferencd@0:   public:
ferencd@0:     explicit wide_string_input_adapter(const WideStringType& w) noexcept
ferencd@0:         : str(w)
ferencd@0:     {}
ferencd@0: 
ferencd@0:     std::char_traits<char>::int_type get_character() noexcept override
ferencd@0:     {
ferencd@0:         // check if buffer needs to be filled
ferencd@0:         if (utf8_bytes_index == utf8_bytes_filled)
ferencd@0:         {
ferencd@0:             fill_buffer<sizeof(typename WideStringType::value_type)>();
ferencd@0: 
ferencd@0:             assert(utf8_bytes_filled > 0);
ferencd@0:             assert(utf8_bytes_index == 0);
ferencd@0:         }
ferencd@0: 
ferencd@0:         // use buffer
ferencd@0:         assert(utf8_bytes_filled > 0);
ferencd@0:         assert(utf8_bytes_index < utf8_bytes_filled);
ferencd@0:         return utf8_bytes[utf8_bytes_index++];
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     template<size_t T>
ferencd@0:     void fill_buffer()
ferencd@0:     {
ferencd@0:         wide_string_input_helper<WideStringType, T>::fill_buffer(str, current_wchar, utf8_bytes, utf8_bytes_index, utf8_bytes_filled);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// the wstring to process
ferencd@0:     const WideStringType& str;
ferencd@0: 
ferencd@0:     /// index of the current wchar in str
ferencd@0:     std::size_t current_wchar = 0;
ferencd@0: 
ferencd@0:     /// a buffer for UTF-8 bytes
ferencd@0:     std::array<std::char_traits<char>::int_type, 4> utf8_bytes = {{0, 0, 0, 0}};
ferencd@0: 
ferencd@0:     /// index to the utf8_codes array for the next valid byte
ferencd@0:     std::size_t utf8_bytes_index = 0;
ferencd@0:     /// number of valid bytes in the utf8_codes array
ferencd@0:     std::size_t utf8_bytes_filled = 0;
ferencd@0: };
ferencd@0: 
ferencd@0: class input_adapter
ferencd@0: {
ferencd@0:   public:
ferencd@0:     // native support
ferencd@0:     JSON_HEDLEY_NON_NULL(2)
ferencd@0:     input_adapter(std::FILE* file)
ferencd@0:         : ia(std::make_shared<file_input_adapter>(file)) {}
ferencd@0:     /// input adapter for input stream
ferencd@0:     input_adapter(std::istream& i)
ferencd@0:         : ia(std::make_shared<input_stream_adapter>(i)) {}
ferencd@0: 
ferencd@0:     /// input adapter for input stream
ferencd@0:     input_adapter(std::istream&& i)
ferencd@0:         : ia(std::make_shared<input_stream_adapter>(i)) {}
ferencd@0: 
ferencd@0:     input_adapter(const std::wstring& ws)
ferencd@0:         : ia(std::make_shared<wide_string_input_adapter<std::wstring>>(ws)) {}
ferencd@0: 
ferencd@0:     input_adapter(const std::u16string& ws)
ferencd@0:         : ia(std::make_shared<wide_string_input_adapter<std::u16string>>(ws)) {}
ferencd@0: 
ferencd@0:     input_adapter(const std::u32string& ws)
ferencd@0:         : ia(std::make_shared<wide_string_input_adapter<std::u32string>>(ws)) {}
ferencd@0: 
ferencd@0:     /// input adapter for buffer
ferencd@0:     template<typename CharT,
ferencd@0:              typename std::enable_if<
ferencd@0:                  std::is_pointer<CharT>::value and
ferencd@0:                  std::is_integral<typename std::remove_pointer<CharT>::type>::value and
ferencd@0:                  sizeof(typename std::remove_pointer<CharT>::type) == 1,
ferencd@0:                  int>::type = 0>
ferencd@0:     input_adapter(CharT b, std::size_t l)
ferencd@0:         : ia(std::make_shared<input_buffer_adapter>(reinterpret_cast<const char*>(b), l)) {}
ferencd@0: 
ferencd@0:     // derived support
ferencd@0: 
ferencd@0:     /// input adapter for string literal
ferencd@0:     template<typename CharT,
ferencd@0:              typename std::enable_if<
ferencd@0:                  std::is_pointer<CharT>::value and
ferencd@0:                  std::is_integral<typename std::remove_pointer<CharT>::type>::value and
ferencd@0:                  sizeof(typename std::remove_pointer<CharT>::type) == 1,
ferencd@0:                  int>::type = 0>
ferencd@0:     input_adapter(CharT b)
ferencd@0:         : input_adapter(reinterpret_cast<const char*>(b),
ferencd@0:                         std::strlen(reinterpret_cast<const char*>(b))) {}
ferencd@0: 
ferencd@0:     /// input adapter for iterator range with contiguous storage
ferencd@0:     template<class IteratorType,
ferencd@0:              typename std::enable_if<
ferencd@0:                  std::is_same<typename iterator_traits<IteratorType>::iterator_category, std::random_access_iterator_tag>::value,
ferencd@0:                  int>::type = 0>
ferencd@0:     input_adapter(IteratorType first, IteratorType last)
ferencd@0:     {
ferencd@0: #ifndef NDEBUG
ferencd@0:         // assertion to check that the iterator range is indeed contiguous,
ferencd@0:         // see http://stackoverflow.com/a/35008842/266378 for more discussion
ferencd@0:         const auto is_contiguous = std::accumulate(
ferencd@0:                                        first, last, std::pair<bool, int>(true, 0),
ferencd@0:                                        [&first](std::pair<bool, int> res, decltype(*first) val)
ferencd@0:         {
ferencd@0:             res.first &= (val == *(std::next(std::addressof(*first), res.second++)));
ferencd@0:             return res;
ferencd@0:         }).first;
ferencd@0:         assert(is_contiguous);
ferencd@0: #endif
ferencd@0: 
ferencd@0:         // assertion to check that each element is 1 byte long
ferencd@0:         static_assert(
ferencd@0:             sizeof(typename iterator_traits<IteratorType>::value_type) == 1,
ferencd@0:             "each element in the iterator range must have the size of 1 byte");
ferencd@0: 
ferencd@0:         const auto len = static_cast<size_t>(std::distance(first, last));
ferencd@0:         if (JSON_HEDLEY_LIKELY(len > 0))
ferencd@0:         {
ferencd@0:             // there is at least one element: use the address of first
ferencd@0:             ia = std::make_shared<input_buffer_adapter>(reinterpret_cast<const char*>(&(*first)), len);
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             // the address of first cannot be used: use nullptr
ferencd@0:             ia = std::make_shared<input_buffer_adapter>(nullptr, len);
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// input adapter for array
ferencd@0:     template<class T, std::size_t N>
ferencd@0:     input_adapter(T (&array)[N])
ferencd@0:         : input_adapter(std::begin(array), std::end(array)) {}
ferencd@0: 
ferencd@0:     /// input adapter for contiguous container
ferencd@0:     template<class ContiguousContainer, typename
ferencd@0:              std::enable_if<not std::is_pointer<ContiguousContainer>::value and
ferencd@0:                             std::is_base_of<std::random_access_iterator_tag, typename iterator_traits<decltype(std::begin(std::declval<ContiguousContainer const>()))>::iterator_category>::value,
ferencd@0:                             int>::type = 0>
ferencd@0:     input_adapter(const ContiguousContainer& c)
ferencd@0:         : input_adapter(std::begin(c), std::end(c)) {}
ferencd@0: 
ferencd@0:     operator input_adapter_t()
ferencd@0:     {
ferencd@0:         return ia;
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     /// the actual adapter
ferencd@0:     input_adapter_t ia = nullptr;
ferencd@0: };
ferencd@0: }  // namespace detail
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/input/json_sax.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <cassert> // assert
ferencd@0: #include <cstddef>
ferencd@0: #include <string> // string
ferencd@0: #include <utility> // move
ferencd@0: #include <vector> // vector
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/exceptions.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/macro_scope.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief SAX interface
ferencd@0: 
ferencd@0: This class describes the SAX interface used by @ref nlohmann::json::sax_parse.
ferencd@0: Each function is called in different situations while the input is parsed. The
ferencd@0: boolean return value informs the parser whether to continue processing the
ferencd@0: input.
ferencd@0: */
ferencd@0: template<typename BasicJsonType>
ferencd@0: struct json_sax
ferencd@0: {
ferencd@0:     /// type for (signed) integers
ferencd@0:     using number_integer_t = typename BasicJsonType::number_integer_t;
ferencd@0:     /// type for unsigned integers
ferencd@0:     using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
ferencd@0:     /// type for floating-point numbers
ferencd@0:     using number_float_t = typename BasicJsonType::number_float_t;
ferencd@0:     /// type for strings
ferencd@0:     using string_t = typename BasicJsonType::string_t;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief a null value was read
ferencd@0:     @return whether parsing should proceed
ferencd@0:     */
ferencd@0:     virtual bool null() = 0;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief a boolean value was read
ferencd@0:     @param[in] val  boolean value
ferencd@0:     @return whether parsing should proceed
ferencd@0:     */
ferencd@0:     virtual bool boolean(bool val) = 0;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief an integer number was read
ferencd@0:     @param[in] val  integer value
ferencd@0:     @return whether parsing should proceed
ferencd@0:     */
ferencd@0:     virtual bool number_integer(number_integer_t val) = 0;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief an unsigned integer number was read
ferencd@0:     @param[in] val  unsigned integer value
ferencd@0:     @return whether parsing should proceed
ferencd@0:     */
ferencd@0:     virtual bool number_unsigned(number_unsigned_t val) = 0;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief an floating-point number was read
ferencd@0:     @param[in] val  floating-point value
ferencd@0:     @param[in] s    raw token value
ferencd@0:     @return whether parsing should proceed
ferencd@0:     */
ferencd@0:     virtual bool number_float(number_float_t val, const string_t& s) = 0;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief a string was read
ferencd@0:     @param[in] val  string value
ferencd@0:     @return whether parsing should proceed
ferencd@0:     @note It is safe to move the passed string.
ferencd@0:     */
ferencd@0:     virtual bool string(string_t& val) = 0;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief the beginning of an object was read
ferencd@0:     @param[in] elements  number of object elements or -1 if unknown
ferencd@0:     @return whether parsing should proceed
ferencd@0:     @note binary formats may report the number of elements
ferencd@0:     */
ferencd@0:     virtual bool start_object(std::size_t elements) = 0;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief an object key was read
ferencd@0:     @param[in] val  object key
ferencd@0:     @return whether parsing should proceed
ferencd@0:     @note It is safe to move the passed string.
ferencd@0:     */
ferencd@0:     virtual bool key(string_t& val) = 0;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief the end of an object was read
ferencd@0:     @return whether parsing should proceed
ferencd@0:     */
ferencd@0:     virtual bool end_object() = 0;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief the beginning of an array was read
ferencd@0:     @param[in] elements  number of array elements or -1 if unknown
ferencd@0:     @return whether parsing should proceed
ferencd@0:     @note binary formats may report the number of elements
ferencd@0:     */
ferencd@0:     virtual bool start_array(std::size_t elements) = 0;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief the end of an array was read
ferencd@0:     @return whether parsing should proceed
ferencd@0:     */
ferencd@0:     virtual bool end_array() = 0;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief a parse error occurred
ferencd@0:     @param[in] position    the position in the input where the error occurs
ferencd@0:     @param[in] last_token  the last read token
ferencd@0:     @param[in] ex          an exception object describing the error
ferencd@0:     @return whether parsing should proceed (must return false)
ferencd@0:     */
ferencd@0:     virtual bool parse_error(std::size_t position,
ferencd@0:                              const std::string& last_token,
ferencd@0:                              const detail::exception& ex) = 0;
ferencd@0: 
ferencd@0:     virtual ~json_sax() = default;
ferencd@0: };
ferencd@0: 
ferencd@0: 
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: /*!
ferencd@0: @brief SAX implementation to create a JSON value from SAX events
ferencd@0: 
ferencd@0: This class implements the @ref json_sax interface and processes the SAX events
ferencd@0: to create a JSON value which makes it basically a DOM parser. The structure or
ferencd@0: hierarchy of the JSON value is managed by the stack `ref_stack` which contains
ferencd@0: a pointer to the respective array or object for each recursion depth.
ferencd@0: 
ferencd@0: After successful parsing, the value that is passed by reference to the
ferencd@0: constructor contains the parsed value.
ferencd@0: 
ferencd@0: @tparam BasicJsonType  the JSON type
ferencd@0: */
ferencd@0: template<typename BasicJsonType>
ferencd@0: class json_sax_dom_parser
ferencd@0: {
ferencd@0:   public:
ferencd@0:     using number_integer_t = typename BasicJsonType::number_integer_t;
ferencd@0:     using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
ferencd@0:     using number_float_t = typename BasicJsonType::number_float_t;
ferencd@0:     using string_t = typename BasicJsonType::string_t;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @param[in, out] r  reference to a JSON value that is manipulated while
ferencd@0:                        parsing
ferencd@0:     @param[in] allow_exceptions_  whether parse errors yield exceptions
ferencd@0:     */
ferencd@0:     explicit json_sax_dom_parser(BasicJsonType& r, const bool allow_exceptions_ = true)
ferencd@0:         : root(r), allow_exceptions(allow_exceptions_)
ferencd@0:     {}
ferencd@0: 
ferencd@0:     // make class move-only
ferencd@0:     json_sax_dom_parser(const json_sax_dom_parser&) = delete;
ferencd@0:     json_sax_dom_parser(json_sax_dom_parser&&) = default;
ferencd@0:     json_sax_dom_parser& operator=(const json_sax_dom_parser&) = delete;
ferencd@0:     json_sax_dom_parser& operator=(json_sax_dom_parser&&) = default;
ferencd@0:     ~json_sax_dom_parser() = default;
ferencd@0: 
ferencd@0:     bool null()
ferencd@0:     {
ferencd@0:         handle_value(nullptr);
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool boolean(bool val)
ferencd@0:     {
ferencd@0:         handle_value(val);
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool number_integer(number_integer_t val)
ferencd@0:     {
ferencd@0:         handle_value(val);
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool number_unsigned(number_unsigned_t val)
ferencd@0:     {
ferencd@0:         handle_value(val);
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool number_float(number_float_t val, const string_t& /*unused*/)
ferencd@0:     {
ferencd@0:         handle_value(val);
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool string(string_t& val)
ferencd@0:     {
ferencd@0:         handle_value(val);
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool start_object(std::size_t len)
ferencd@0:     {
ferencd@0:         ref_stack.push_back(handle_value(BasicJsonType::value_t::object));
ferencd@0: 
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(len != std::size_t(-1) and len > ref_stack.back()->max_size()))
ferencd@0:         {
ferencd@0:             JSON_THROW(out_of_range::create(408,
ferencd@0:                                             "excessive object size: " + std::to_string(len)));
ferencd@0:         }
ferencd@0: 
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool key(string_t& val)
ferencd@0:     {
ferencd@0:         // add null at given key and store the reference for later
ferencd@0:         object_element = &(ref_stack.back()->m_value.object->operator[](val));
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool end_object()
ferencd@0:     {
ferencd@0:         ref_stack.pop_back();
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool start_array(std::size_t len)
ferencd@0:     {
ferencd@0:         ref_stack.push_back(handle_value(BasicJsonType::value_t::array));
ferencd@0: 
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(len != std::size_t(-1) and len > ref_stack.back()->max_size()))
ferencd@0:         {
ferencd@0:             JSON_THROW(out_of_range::create(408,
ferencd@0:                                             "excessive array size: " + std::to_string(len)));
ferencd@0:         }
ferencd@0: 
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool end_array()
ferencd@0:     {
ferencd@0:         ref_stack.pop_back();
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool parse_error(std::size_t /*unused*/, const std::string& /*unused*/,
ferencd@0:                      const detail::exception& ex)
ferencd@0:     {
ferencd@0:         errored = true;
ferencd@0:         if (allow_exceptions)
ferencd@0:         {
ferencd@0:             // determine the proper exception type from the id
ferencd@0:             switch ((ex.id / 100) % 100)
ferencd@0:             {
ferencd@0:                 case 1:
ferencd@0:                     JSON_THROW(*static_cast<const detail::parse_error*>(&ex));
ferencd@0:                 case 4:
ferencd@0:                     JSON_THROW(*static_cast<const detail::out_of_range*>(&ex));
ferencd@0:                 // LCOV_EXCL_START
ferencd@0:                 case 2:
ferencd@0:                     JSON_THROW(*static_cast<const detail::invalid_iterator*>(&ex));
ferencd@0:                 case 3:
ferencd@0:                     JSON_THROW(*static_cast<const detail::type_error*>(&ex));
ferencd@0:                 case 5:
ferencd@0:                     JSON_THROW(*static_cast<const detail::other_error*>(&ex));
ferencd@0:                 default:
ferencd@0:                     assert(false);
ferencd@0:                     // LCOV_EXCL_STOP
ferencd@0:             }
ferencd@0:         }
ferencd@0:         return false;
ferencd@0:     }
ferencd@0: 
ferencd@0:     constexpr bool is_errored() const
ferencd@0:     {
ferencd@0:         return errored;
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     /*!
ferencd@0:     @invariant If the ref stack is empty, then the passed value will be the new
ferencd@0:                root.
ferencd@0:     @invariant If the ref stack contains a value, then it is an array or an
ferencd@0:                object to which we can add elements
ferencd@0:     */
ferencd@0:     template<typename Value>
ferencd@0:     JSON_HEDLEY_RETURNS_NON_NULL
ferencd@0:     BasicJsonType* handle_value(Value&& v)
ferencd@0:     {
ferencd@0:         if (ref_stack.empty())
ferencd@0:         {
ferencd@0:             root = BasicJsonType(std::forward<Value>(v));
ferencd@0:             return &root;
ferencd@0:         }
ferencd@0: 
ferencd@0:         assert(ref_stack.back()->is_array() or ref_stack.back()->is_object());
ferencd@0: 
ferencd@0:         if (ref_stack.back()->is_array())
ferencd@0:         {
ferencd@0:             ref_stack.back()->m_value.array->emplace_back(std::forward<Value>(v));
ferencd@0:             return &(ref_stack.back()->m_value.array->back());
ferencd@0:         }
ferencd@0: 
ferencd@0:         assert(ref_stack.back()->is_object());
ferencd@0:         assert(object_element);
ferencd@0:         *object_element = BasicJsonType(std::forward<Value>(v));
ferencd@0:         return object_element;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// the parsed JSON value
ferencd@0:     BasicJsonType& root;
ferencd@0:     /// stack to model hierarchy of values
ferencd@0:     std::vector<BasicJsonType*> ref_stack {};
ferencd@0:     /// helper to hold the reference for the next object element
ferencd@0:     BasicJsonType* object_element = nullptr;
ferencd@0:     /// whether a syntax error occurred
ferencd@0:     bool errored = false;
ferencd@0:     /// whether to throw exceptions in case of errors
ferencd@0:     const bool allow_exceptions = true;
ferencd@0: };
ferencd@0: 
ferencd@0: template<typename BasicJsonType>
ferencd@0: class json_sax_dom_callback_parser
ferencd@0: {
ferencd@0:   public:
ferencd@0:     using number_integer_t = typename BasicJsonType::number_integer_t;
ferencd@0:     using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
ferencd@0:     using number_float_t = typename BasicJsonType::number_float_t;
ferencd@0:     using string_t = typename BasicJsonType::string_t;
ferencd@0:     using parser_callback_t = typename BasicJsonType::parser_callback_t;
ferencd@0:     using parse_event_t = typename BasicJsonType::parse_event_t;
ferencd@0: 
ferencd@0:     json_sax_dom_callback_parser(BasicJsonType& r,
ferencd@0:                                  const parser_callback_t cb,
ferencd@0:                                  const bool allow_exceptions_ = true)
ferencd@0:         : root(r), callback(cb), allow_exceptions(allow_exceptions_)
ferencd@0:     {
ferencd@0:         keep_stack.push_back(true);
ferencd@0:     }
ferencd@0: 
ferencd@0:     // make class move-only
ferencd@0:     json_sax_dom_callback_parser(const json_sax_dom_callback_parser&) = delete;
ferencd@0:     json_sax_dom_callback_parser(json_sax_dom_callback_parser&&) = default;
ferencd@0:     json_sax_dom_callback_parser& operator=(const json_sax_dom_callback_parser&) = delete;
ferencd@0:     json_sax_dom_callback_parser& operator=(json_sax_dom_callback_parser&&) = default;
ferencd@0:     ~json_sax_dom_callback_parser() = default;
ferencd@0: 
ferencd@0:     bool null()
ferencd@0:     {
ferencd@0:         handle_value(nullptr);
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool boolean(bool val)
ferencd@0:     {
ferencd@0:         handle_value(val);
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool number_integer(number_integer_t val)
ferencd@0:     {
ferencd@0:         handle_value(val);
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool number_unsigned(number_unsigned_t val)
ferencd@0:     {
ferencd@0:         handle_value(val);
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool number_float(number_float_t val, const string_t& /*unused*/)
ferencd@0:     {
ferencd@0:         handle_value(val);
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool string(string_t& val)
ferencd@0:     {
ferencd@0:         handle_value(val);
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool start_object(std::size_t len)
ferencd@0:     {
ferencd@0:         // check callback for object start
ferencd@0:         const bool keep = callback(static_cast<int>(ref_stack.size()), parse_event_t::object_start, discarded);
ferencd@0:         keep_stack.push_back(keep);
ferencd@0: 
ferencd@0:         auto val = handle_value(BasicJsonType::value_t::object, true);
ferencd@0:         ref_stack.push_back(val.second);
ferencd@0: 
ferencd@0:         // check object limit
ferencd@0:         if (ref_stack.back() and JSON_HEDLEY_UNLIKELY(len != std::size_t(-1) and len > ref_stack.back()->max_size()))
ferencd@0:         {
ferencd@0:             JSON_THROW(out_of_range::create(408, "excessive object size: " + std::to_string(len)));
ferencd@0:         }
ferencd@0: 
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool key(string_t& val)
ferencd@0:     {
ferencd@0:         BasicJsonType k = BasicJsonType(val);
ferencd@0: 
ferencd@0:         // check callback for key
ferencd@0:         const bool keep = callback(static_cast<int>(ref_stack.size()), parse_event_t::key, k);
ferencd@0:         key_keep_stack.push_back(keep);
ferencd@0: 
ferencd@0:         // add discarded value at given key and store the reference for later
ferencd@0:         if (keep and ref_stack.back())
ferencd@0:         {
ferencd@0:             object_element = &(ref_stack.back()->m_value.object->operator[](val) = discarded);
ferencd@0:         }
ferencd@0: 
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool end_object()
ferencd@0:     {
ferencd@0:         if (ref_stack.back() and not callback(static_cast<int>(ref_stack.size()) - 1, parse_event_t::object_end, *ref_stack.back()))
ferencd@0:         {
ferencd@0:             // discard object
ferencd@0:             *ref_stack.back() = discarded;
ferencd@0:         }
ferencd@0: 
ferencd@0:         assert(not ref_stack.empty());
ferencd@0:         assert(not keep_stack.empty());
ferencd@0:         ref_stack.pop_back();
ferencd@0:         keep_stack.pop_back();
ferencd@0: 
ferencd@0:         if (not ref_stack.empty() and ref_stack.back() and ref_stack.back()->is_object())
ferencd@0:         {
ferencd@0:             // remove discarded value
ferencd@0:             for (auto it = ref_stack.back()->begin(); it != ref_stack.back()->end(); ++it)
ferencd@0:             {
ferencd@0:                 if (it->is_discarded())
ferencd@0:                 {
ferencd@0:                     ref_stack.back()->erase(it);
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool start_array(std::size_t len)
ferencd@0:     {
ferencd@0:         const bool keep = callback(static_cast<int>(ref_stack.size()), parse_event_t::array_start, discarded);
ferencd@0:         keep_stack.push_back(keep);
ferencd@0: 
ferencd@0:         auto val = handle_value(BasicJsonType::value_t::array, true);
ferencd@0:         ref_stack.push_back(val.second);
ferencd@0: 
ferencd@0:         // check array limit
ferencd@0:         if (ref_stack.back() and JSON_HEDLEY_UNLIKELY(len != std::size_t(-1) and len > ref_stack.back()->max_size()))
ferencd@0:         {
ferencd@0:             JSON_THROW(out_of_range::create(408, "excessive array size: " + std::to_string(len)));
ferencd@0:         }
ferencd@0: 
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool end_array()
ferencd@0:     {
ferencd@0:         bool keep = true;
ferencd@0: 
ferencd@0:         if (ref_stack.back())
ferencd@0:         {
ferencd@0:             keep = callback(static_cast<int>(ref_stack.size()) - 1, parse_event_t::array_end, *ref_stack.back());
ferencd@0:             if (not keep)
ferencd@0:             {
ferencd@0:                 // discard array
ferencd@0:                 *ref_stack.back() = discarded;
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         assert(not ref_stack.empty());
ferencd@0:         assert(not keep_stack.empty());
ferencd@0:         ref_stack.pop_back();
ferencd@0:         keep_stack.pop_back();
ferencd@0: 
ferencd@0:         // remove discarded value
ferencd@0:         if (not keep and not ref_stack.empty() and ref_stack.back()->is_array())
ferencd@0:         {
ferencd@0:             ref_stack.back()->m_value.array->pop_back();
ferencd@0:         }
ferencd@0: 
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool parse_error(std::size_t /*unused*/, const std::string& /*unused*/,
ferencd@0:                      const detail::exception& ex)
ferencd@0:     {
ferencd@0:         errored = true;
ferencd@0:         if (allow_exceptions)
ferencd@0:         {
ferencd@0:             // determine the proper exception type from the id
ferencd@0:             switch ((ex.id / 100) % 100)
ferencd@0:             {
ferencd@0:                 case 1:
ferencd@0:                     JSON_THROW(*static_cast<const detail::parse_error*>(&ex));
ferencd@0:                 case 4:
ferencd@0:                     JSON_THROW(*static_cast<const detail::out_of_range*>(&ex));
ferencd@0:                 // LCOV_EXCL_START
ferencd@0:                 case 2:
ferencd@0:                     JSON_THROW(*static_cast<const detail::invalid_iterator*>(&ex));
ferencd@0:                 case 3:
ferencd@0:                     JSON_THROW(*static_cast<const detail::type_error*>(&ex));
ferencd@0:                 case 5:
ferencd@0:                     JSON_THROW(*static_cast<const detail::other_error*>(&ex));
ferencd@0:                 default:
ferencd@0:                     assert(false);
ferencd@0:                     // LCOV_EXCL_STOP
ferencd@0:             }
ferencd@0:         }
ferencd@0:         return false;
ferencd@0:     }
ferencd@0: 
ferencd@0:     constexpr bool is_errored() const
ferencd@0:     {
ferencd@0:         return errored;
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     /*!
ferencd@0:     @param[in] v  value to add to the JSON value we build during parsing
ferencd@0:     @param[in] skip_callback  whether we should skip calling the callback
ferencd@0:                function; this is required after start_array() and
ferencd@0:                start_object() SAX events, because otherwise we would call the
ferencd@0:                callback function with an empty array or object, respectively.
ferencd@0: 
ferencd@0:     @invariant If the ref stack is empty, then the passed value will be the new
ferencd@0:                root.
ferencd@0:     @invariant If the ref stack contains a value, then it is an array or an
ferencd@0:                object to which we can add elements
ferencd@0: 
ferencd@0:     @return pair of boolean (whether value should be kept) and pointer (to the
ferencd@0:             passed value in the ref_stack hierarchy; nullptr if not kept)
ferencd@0:     */
ferencd@0:     template<typename Value>
ferencd@0:     std::pair<bool, BasicJsonType*> handle_value(Value&& v, const bool skip_callback = false)
ferencd@0:     {
ferencd@0:         assert(not keep_stack.empty());
ferencd@0: 
ferencd@0:         // do not handle this value if we know it would be added to a discarded
ferencd@0:         // container
ferencd@0:         if (not keep_stack.back())
ferencd@0:         {
ferencd@0:             return {false, nullptr};
ferencd@0:         }
ferencd@0: 
ferencd@0:         // create value
ferencd@0:         auto value = BasicJsonType(std::forward<Value>(v));
ferencd@0: 
ferencd@0:         // check callback
ferencd@0:         const bool keep = skip_callback or callback(static_cast<int>(ref_stack.size()), parse_event_t::value, value);
ferencd@0: 
ferencd@0:         // do not handle this value if we just learnt it shall be discarded
ferencd@0:         if (not keep)
ferencd@0:         {
ferencd@0:             return {false, nullptr};
ferencd@0:         }
ferencd@0: 
ferencd@0:         if (ref_stack.empty())
ferencd@0:         {
ferencd@0:             root = std::move(value);
ferencd@0:             return {true, &root};
ferencd@0:         }
ferencd@0: 
ferencd@0:         // skip this value if we already decided to skip the parent
ferencd@0:         // (https://github.com/nlohmann/json/issues/971#issuecomment-413678360)
ferencd@0:         if (not ref_stack.back())
ferencd@0:         {
ferencd@0:             return {false, nullptr};
ferencd@0:         }
ferencd@0: 
ferencd@0:         // we now only expect arrays and objects
ferencd@0:         assert(ref_stack.back()->is_array() or ref_stack.back()->is_object());
ferencd@0: 
ferencd@0:         // array
ferencd@0:         if (ref_stack.back()->is_array())
ferencd@0:         {
ferencd@0:             ref_stack.back()->m_value.array->push_back(std::move(value));
ferencd@0:             return {true, &(ref_stack.back()->m_value.array->back())};
ferencd@0:         }
ferencd@0: 
ferencd@0:         // object
ferencd@0:         assert(ref_stack.back()->is_object());
ferencd@0:         // check if we should store an element for the current key
ferencd@0:         assert(not key_keep_stack.empty());
ferencd@0:         const bool store_element = key_keep_stack.back();
ferencd@0:         key_keep_stack.pop_back();
ferencd@0: 
ferencd@0:         if (not store_element)
ferencd@0:         {
ferencd@0:             return {false, nullptr};
ferencd@0:         }
ferencd@0: 
ferencd@0:         assert(object_element);
ferencd@0:         *object_element = std::move(value);
ferencd@0:         return {true, object_element};
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// the parsed JSON value
ferencd@0:     BasicJsonType& root;
ferencd@0:     /// stack to model hierarchy of values
ferencd@0:     std::vector<BasicJsonType*> ref_stack {};
ferencd@0:     /// stack to manage which values to keep
ferencd@0:     std::vector<bool> keep_stack {};
ferencd@0:     /// stack to manage which object keys to keep
ferencd@0:     std::vector<bool> key_keep_stack {};
ferencd@0:     /// helper to hold the reference for the next object element
ferencd@0:     BasicJsonType* object_element = nullptr;
ferencd@0:     /// whether a syntax error occurred
ferencd@0:     bool errored = false;
ferencd@0:     /// callback function
ferencd@0:     const parser_callback_t callback = nullptr;
ferencd@0:     /// whether to throw exceptions in case of errors
ferencd@0:     const bool allow_exceptions = true;
ferencd@0:     /// a discarded value for the callback
ferencd@0:     BasicJsonType discarded = BasicJsonType::value_t::discarded;
ferencd@0: };
ferencd@0: 
ferencd@0: template<typename BasicJsonType>
ferencd@0: class json_sax_acceptor
ferencd@0: {
ferencd@0:   public:
ferencd@0:     using number_integer_t = typename BasicJsonType::number_integer_t;
ferencd@0:     using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
ferencd@0:     using number_float_t = typename BasicJsonType::number_float_t;
ferencd@0:     using string_t = typename BasicJsonType::string_t;
ferencd@0: 
ferencd@0:     bool null()
ferencd@0:     {
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool boolean(bool /*unused*/)
ferencd@0:     {
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool number_integer(number_integer_t /*unused*/)
ferencd@0:     {
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool number_unsigned(number_unsigned_t /*unused*/)
ferencd@0:     {
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool number_float(number_float_t /*unused*/, const string_t& /*unused*/)
ferencd@0:     {
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool string(string_t& /*unused*/)
ferencd@0:     {
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool start_object(std::size_t  /*unused*/ = std::size_t(-1))
ferencd@0:     {
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool key(string_t& /*unused*/)
ferencd@0:     {
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool end_object()
ferencd@0:     {
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool start_array(std::size_t  /*unused*/ = std::size_t(-1))
ferencd@0:     {
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool end_array()
ferencd@0:     {
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     bool parse_error(std::size_t /*unused*/, const std::string& /*unused*/, const detail::exception& /*unused*/)
ferencd@0:     {
ferencd@0:         return false;
ferencd@0:     }
ferencd@0: };
ferencd@0: }  // namespace detail
ferencd@0: 
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/macro_scope.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/meta/is_sax.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <cstdint> // size_t
ferencd@0: #include <utility> // declval
ferencd@0: #include <string> // string
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/meta/detected.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/meta/type_traits.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: template <typename T>
ferencd@0: using null_function_t = decltype(std::declval<T&>().null());
ferencd@0: 
ferencd@0: template <typename T>
ferencd@0: using boolean_function_t =
ferencd@0:     decltype(std::declval<T&>().boolean(std::declval<bool>()));
ferencd@0: 
ferencd@0: template <typename T, typename Integer>
ferencd@0: using number_integer_function_t =
ferencd@0:     decltype(std::declval<T&>().number_integer(std::declval<Integer>()));
ferencd@0: 
ferencd@0: template <typename T, typename Unsigned>
ferencd@0: using number_unsigned_function_t =
ferencd@0:     decltype(std::declval<T&>().number_unsigned(std::declval<Unsigned>()));
ferencd@0: 
ferencd@0: template <typename T, typename Float, typename String>
ferencd@0: using number_float_function_t = decltype(std::declval<T&>().number_float(
ferencd@0:                                     std::declval<Float>(), std::declval<const String&>()));
ferencd@0: 
ferencd@0: template <typename T, typename String>
ferencd@0: using string_function_t =
ferencd@0:     decltype(std::declval<T&>().string(std::declval<String&>()));
ferencd@0: 
ferencd@0: template <typename T>
ferencd@0: using start_object_function_t =
ferencd@0:     decltype(std::declval<T&>().start_object(std::declval<std::size_t>()));
ferencd@0: 
ferencd@0: template <typename T, typename String>
ferencd@0: using key_function_t =
ferencd@0:     decltype(std::declval<T&>().key(std::declval<String&>()));
ferencd@0: 
ferencd@0: template <typename T>
ferencd@0: using end_object_function_t = decltype(std::declval<T&>().end_object());
ferencd@0: 
ferencd@0: template <typename T>
ferencd@0: using start_array_function_t =
ferencd@0:     decltype(std::declval<T&>().start_array(std::declval<std::size_t>()));
ferencd@0: 
ferencd@0: template <typename T>
ferencd@0: using end_array_function_t = decltype(std::declval<T&>().end_array());
ferencd@0: 
ferencd@0: template <typename T, typename Exception>
ferencd@0: using parse_error_function_t = decltype(std::declval<T&>().parse_error(
ferencd@0:         std::declval<std::size_t>(), std::declval<const std::string&>(),
ferencd@0:         std::declval<const Exception&>()));
ferencd@0: 
ferencd@0: template <typename SAX, typename BasicJsonType>
ferencd@0: struct is_sax
ferencd@0: {
ferencd@0:   private:
ferencd@0:     static_assert(is_basic_json<BasicJsonType>::value,
ferencd@0:                   "BasicJsonType must be of type basic_json<...>");
ferencd@0: 
ferencd@0:     using number_integer_t = typename BasicJsonType::number_integer_t;
ferencd@0:     using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
ferencd@0:     using number_float_t = typename BasicJsonType::number_float_t;
ferencd@0:     using string_t = typename BasicJsonType::string_t;
ferencd@0:     using exception_t = typename BasicJsonType::exception;
ferencd@0: 
ferencd@0:   public:
ferencd@0:     static constexpr bool value =
ferencd@0:         is_detected_exact<bool, null_function_t, SAX>::value &&
ferencd@0:         is_detected_exact<bool, boolean_function_t, SAX>::value &&
ferencd@0:         is_detected_exact<bool, number_integer_function_t, SAX,
ferencd@0:         number_integer_t>::value &&
ferencd@0:         is_detected_exact<bool, number_unsigned_function_t, SAX,
ferencd@0:         number_unsigned_t>::value &&
ferencd@0:         is_detected_exact<bool, number_float_function_t, SAX, number_float_t,
ferencd@0:         string_t>::value &&
ferencd@0:         is_detected_exact<bool, string_function_t, SAX, string_t>::value &&
ferencd@0:         is_detected_exact<bool, start_object_function_t, SAX>::value &&
ferencd@0:         is_detected_exact<bool, key_function_t, SAX, string_t>::value &&
ferencd@0:         is_detected_exact<bool, end_object_function_t, SAX>::value &&
ferencd@0:         is_detected_exact<bool, start_array_function_t, SAX>::value &&
ferencd@0:         is_detected_exact<bool, end_array_function_t, SAX>::value &&
ferencd@0:         is_detected_exact<bool, parse_error_function_t, SAX, exception_t>::value;
ferencd@0: };
ferencd@0: 
ferencd@0: template <typename SAX, typename BasicJsonType>
ferencd@0: struct is_sax_static_asserts
ferencd@0: {
ferencd@0:   private:
ferencd@0:     static_assert(is_basic_json<BasicJsonType>::value,
ferencd@0:                   "BasicJsonType must be of type basic_json<...>");
ferencd@0: 
ferencd@0:     using number_integer_t = typename BasicJsonType::number_integer_t;
ferencd@0:     using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
ferencd@0:     using number_float_t = typename BasicJsonType::number_float_t;
ferencd@0:     using string_t = typename BasicJsonType::string_t;
ferencd@0:     using exception_t = typename BasicJsonType::exception;
ferencd@0: 
ferencd@0:   public:
ferencd@0:     static_assert(is_detected_exact<bool, null_function_t, SAX>::value,
ferencd@0:                   "Missing/invalid function: bool null()");
ferencd@0:     static_assert(is_detected_exact<bool, boolean_function_t, SAX>::value,
ferencd@0:                   "Missing/invalid function: bool boolean(bool)");
ferencd@0:     static_assert(is_detected_exact<bool, boolean_function_t, SAX>::value,
ferencd@0:                   "Missing/invalid function: bool boolean(bool)");
ferencd@0:     static_assert(
ferencd@0:         is_detected_exact<bool, number_integer_function_t, SAX,
ferencd@0:         number_integer_t>::value,
ferencd@0:         "Missing/invalid function: bool number_integer(number_integer_t)");
ferencd@0:     static_assert(
ferencd@0:         is_detected_exact<bool, number_unsigned_function_t, SAX,
ferencd@0:         number_unsigned_t>::value,
ferencd@0:         "Missing/invalid function: bool number_unsigned(number_unsigned_t)");
ferencd@0:     static_assert(is_detected_exact<bool, number_float_function_t, SAX,
ferencd@0:                   number_float_t, string_t>::value,
ferencd@0:                   "Missing/invalid function: bool number_float(number_float_t, const string_t&)");
ferencd@0:     static_assert(
ferencd@0:         is_detected_exact<bool, string_function_t, SAX, string_t>::value,
ferencd@0:         "Missing/invalid function: bool string(string_t&)");
ferencd@0:     static_assert(is_detected_exact<bool, start_object_function_t, SAX>::value,
ferencd@0:                   "Missing/invalid function: bool start_object(std::size_t)");
ferencd@0:     static_assert(is_detected_exact<bool, key_function_t, SAX, string_t>::value,
ferencd@0:                   "Missing/invalid function: bool key(string_t&)");
ferencd@0:     static_assert(is_detected_exact<bool, end_object_function_t, SAX>::value,
ferencd@0:                   "Missing/invalid function: bool end_object()");
ferencd@0:     static_assert(is_detected_exact<bool, start_array_function_t, SAX>::value,
ferencd@0:                   "Missing/invalid function: bool start_array(std::size_t)");
ferencd@0:     static_assert(is_detected_exact<bool, end_array_function_t, SAX>::value,
ferencd@0:                   "Missing/invalid function: bool end_array()");
ferencd@0:     static_assert(
ferencd@0:         is_detected_exact<bool, parse_error_function_t, SAX, exception_t>::value,
ferencd@0:         "Missing/invalid function: bool parse_error(std::size_t, const "
ferencd@0:         "std::string&, const exception&)");
ferencd@0: };
ferencd@0: }  // namespace detail
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/value_t.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: ///////////////////
ferencd@0: // binary reader //
ferencd@0: ///////////////////
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief deserialization of CBOR, MessagePack, and UBJSON values
ferencd@0: */
ferencd@0: template<typename BasicJsonType, typename SAX = json_sax_dom_parser<BasicJsonType>>
ferencd@0: class binary_reader
ferencd@0: {
ferencd@0:     using number_integer_t = typename BasicJsonType::number_integer_t;
ferencd@0:     using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
ferencd@0:     using number_float_t = typename BasicJsonType::number_float_t;
ferencd@0:     using string_t = typename BasicJsonType::string_t;
ferencd@0:     using json_sax_t = SAX;
ferencd@0: 
ferencd@0:   public:
ferencd@0:     /*!
ferencd@0:     @brief create a binary reader
ferencd@0: 
ferencd@0:     @param[in] adapter  input adapter to read from
ferencd@0:     */
ferencd@0:     explicit binary_reader(input_adapter_t adapter) : ia(std::move(adapter))
ferencd@0:     {
ferencd@0:         (void)detail::is_sax_static_asserts<SAX, BasicJsonType> {};
ferencd@0:         assert(ia);
ferencd@0:     }
ferencd@0: 
ferencd@0:     // make class move-only
ferencd@0:     binary_reader(const binary_reader&) = delete;
ferencd@0:     binary_reader(binary_reader&&) = default;
ferencd@0:     binary_reader& operator=(const binary_reader&) = delete;
ferencd@0:     binary_reader& operator=(binary_reader&&) = default;
ferencd@0:     ~binary_reader() = default;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @param[in] format  the binary format to parse
ferencd@0:     @param[in] sax_    a SAX event processor
ferencd@0:     @param[in] strict  whether to expect the input to be consumed completed
ferencd@0: 
ferencd@0:     @return
ferencd@0:     */
ferencd@0:     JSON_HEDLEY_NON_NULL(3)
ferencd@0:     bool sax_parse(const input_format_t format,
ferencd@0:                    json_sax_t* sax_,
ferencd@0:                    const bool strict = true)
ferencd@0:     {
ferencd@0:         sax = sax_;
ferencd@0:         bool result = false;
ferencd@0: 
ferencd@0:         switch (format)
ferencd@0:         {
ferencd@0:             case input_format_t::bson:
ferencd@0:                 result = parse_bson_internal();
ferencd@0:                 break;
ferencd@0: 
ferencd@0:             case input_format_t::cbor:
ferencd@0:                 result = parse_cbor_internal();
ferencd@0:                 break;
ferencd@0: 
ferencd@0:             case input_format_t::msgpack:
ferencd@0:                 result = parse_msgpack_internal();
ferencd@0:                 break;
ferencd@0: 
ferencd@0:             case input_format_t::ubjson:
ferencd@0:                 result = parse_ubjson_internal();
ferencd@0:                 break;
ferencd@0: 
ferencd@0:             default:            // LCOV_EXCL_LINE
ferencd@0:                 assert(false);  // LCOV_EXCL_LINE
ferencd@0:         }
ferencd@0: 
ferencd@0:         // strict mode: next byte must be EOF
ferencd@0:         if (result and strict)
ferencd@0:         {
ferencd@0:             if (format == input_format_t::ubjson)
ferencd@0:             {
ferencd@0:                 get_ignore_noop();
ferencd@0:             }
ferencd@0:             else
ferencd@0:             {
ferencd@0:                 get();
ferencd@0:             }
ferencd@0: 
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(current != std::char_traits<char>::eof()))
ferencd@0:             {
ferencd@0:                 return sax->parse_error(chars_read, get_token_string(),
ferencd@0:                                         parse_error::create(110, chars_read, exception_message(format, "expected end of input; last byte: 0x" + get_token_string(), "value")));
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief determine system byte order
ferencd@0: 
ferencd@0:     @return true if and only if system's byte order is little endian
ferencd@0: 
ferencd@0:     @note from http://stackoverflow.com/a/1001328/266378
ferencd@0:     */
ferencd@0:     static constexpr bool little_endianess(int num = 1) noexcept
ferencd@0:     {
ferencd@0:         return *reinterpret_cast<char*>(&num) == 1;
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     //////////
ferencd@0:     // BSON //
ferencd@0:     //////////
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief Reads in a BSON-object and passes it to the SAX-parser.
ferencd@0:     @return whether a valid BSON-value was passed to the SAX parser
ferencd@0:     */
ferencd@0:     bool parse_bson_internal()
ferencd@0:     {
ferencd@0:         std::int32_t document_size;
ferencd@0:         get_number<std::int32_t, true>(input_format_t::bson, document_size);
ferencd@0: 
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not sax->start_object(std::size_t(-1))))
ferencd@0:         {
ferencd@0:             return false;
ferencd@0:         }
ferencd@0: 
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not parse_bson_element_list(/*is_array*/false)))
ferencd@0:         {
ferencd@0:             return false;
ferencd@0:         }
ferencd@0: 
ferencd@0:         return sax->end_object();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief Parses a C-style string from the BSON input.
ferencd@0:     @param[in, out] result  A reference to the string variable where the read
ferencd@0:                             string is to be stored.
ferencd@0:     @return `true` if the \x00-byte indicating the end of the string was
ferencd@0:              encountered before the EOF; false` indicates an unexpected EOF.
ferencd@0:     */
ferencd@0:     bool get_bson_cstr(string_t& result)
ferencd@0:     {
ferencd@0:         auto out = std::back_inserter(result);
ferencd@0:         while (true)
ferencd@0:         {
ferencd@0:             get();
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(not unexpect_eof(input_format_t::bson, "cstring")))
ferencd@0:             {
ferencd@0:                 return false;
ferencd@0:             }
ferencd@0:             if (current == 0x00)
ferencd@0:             {
ferencd@0:                 return true;
ferencd@0:             }
ferencd@0:             *out++ = static_cast<char>(current);
ferencd@0:         }
ferencd@0: 
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief Parses a zero-terminated string of length @a len from the BSON
ferencd@0:            input.
ferencd@0:     @param[in] len  The length (including the zero-byte at the end) of the
ferencd@0:                     string to be read.
ferencd@0:     @param[in, out] result  A reference to the string variable where the read
ferencd@0:                             string is to be stored.
ferencd@0:     @tparam NumberType The type of the length @a len
ferencd@0:     @pre len >= 1
ferencd@0:     @return `true` if the string was successfully parsed
ferencd@0:     */
ferencd@0:     template<typename NumberType>
ferencd@0:     bool get_bson_string(const NumberType len, string_t& result)
ferencd@0:     {
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(len < 1))
ferencd@0:         {
ferencd@0:             auto last_token = get_token_string();
ferencd@0:             return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::bson, "string length must be at least 1, is " + std::to_string(len), "string")));
ferencd@0:         }
ferencd@0: 
ferencd@0:         return get_string(input_format_t::bson, len - static_cast<NumberType>(1), result) and get() != std::char_traits<char>::eof();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief Read a BSON document element of the given @a element_type.
ferencd@0:     @param[in] element_type The BSON element type, c.f. http://bsonspec.org/spec.html
ferencd@0:     @param[in] element_type_parse_position The position in the input stream,
ferencd@0:                where the `element_type` was read.
ferencd@0:     @warning Not all BSON element types are supported yet. An unsupported
ferencd@0:              @a element_type will give rise to a parse_error.114:
ferencd@0:              Unsupported BSON record type 0x...
ferencd@0:     @return whether a valid BSON-object/array was passed to the SAX parser
ferencd@0:     */
ferencd@0:     bool parse_bson_element_internal(const int element_type,
ferencd@0:                                      const std::size_t element_type_parse_position)
ferencd@0:     {
ferencd@0:         switch (element_type)
ferencd@0:         {
ferencd@0:             case 0x01: // double
ferencd@0:             {
ferencd@0:                 double number;
ferencd@0:                 return get_number<double, true>(input_format_t::bson, number) and sax->number_float(static_cast<number_float_t>(number), "");
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x02: // string
ferencd@0:             {
ferencd@0:                 std::int32_t len;
ferencd@0:                 string_t value;
ferencd@0:                 return get_number<std::int32_t, true>(input_format_t::bson, len) and get_bson_string(len, value) and sax->string(value);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x03: // object
ferencd@0:             {
ferencd@0:                 return parse_bson_internal();
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x04: // array
ferencd@0:             {
ferencd@0:                 return parse_bson_array();
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x08: // boolean
ferencd@0:             {
ferencd@0:                 return sax->boolean(get() != 0);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x0A: // null
ferencd@0:             {
ferencd@0:                 return sax->null();
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x10: // int32
ferencd@0:             {
ferencd@0:                 std::int32_t value;
ferencd@0:                 return get_number<std::int32_t, true>(input_format_t::bson, value) and sax->number_integer(value);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x12: // int64
ferencd@0:             {
ferencd@0:                 std::int64_t value;
ferencd@0:                 return get_number<std::int64_t, true>(input_format_t::bson, value) and sax->number_integer(value);
ferencd@0:             }
ferencd@0: 
ferencd@0:             default: // anything else not supported (yet)
ferencd@0:             {
ferencd@0:                 std::array<char, 3> cr{{}};
ferencd@0:                 (std::snprintf)(cr.data(), cr.size(), "%.2hhX", static_cast<unsigned char>(element_type));
ferencd@0:                 return sax->parse_error(element_type_parse_position, std::string(cr.data()), parse_error::create(114, element_type_parse_position, "Unsupported BSON record type 0x" + std::string(cr.data())));
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief Read a BSON element list (as specified in the BSON-spec)
ferencd@0: 
ferencd@0:     The same binary layout is used for objects and arrays, hence it must be
ferencd@0:     indicated with the argument @a is_array which one is expected
ferencd@0:     (true --> array, false --> object).
ferencd@0: 
ferencd@0:     @param[in] is_array Determines if the element list being read is to be
ferencd@0:                         treated as an object (@a is_array == false), or as an
ferencd@0:                         array (@a is_array == true).
ferencd@0:     @return whether a valid BSON-object/array was passed to the SAX parser
ferencd@0:     */
ferencd@0:     bool parse_bson_element_list(const bool is_array)
ferencd@0:     {
ferencd@0:         string_t key;
ferencd@0:         while (int element_type = get())
ferencd@0:         {
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(not unexpect_eof(input_format_t::bson, "element list")))
ferencd@0:             {
ferencd@0:                 return false;
ferencd@0:             }
ferencd@0: 
ferencd@0:             const std::size_t element_type_parse_position = chars_read;
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(not get_bson_cstr(key)))
ferencd@0:             {
ferencd@0:                 return false;
ferencd@0:             }
ferencd@0: 
ferencd@0:             if (not is_array and not sax->key(key))
ferencd@0:             {
ferencd@0:                 return false;
ferencd@0:             }
ferencd@0: 
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(not parse_bson_element_internal(element_type, element_type_parse_position)))
ferencd@0:             {
ferencd@0:                 return false;
ferencd@0:             }
ferencd@0: 
ferencd@0:             // get_bson_cstr only appends
ferencd@0:             key.clear();
ferencd@0:         }
ferencd@0: 
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief Reads an array from the BSON input and passes it to the SAX-parser.
ferencd@0:     @return whether a valid BSON-array was passed to the SAX parser
ferencd@0:     */
ferencd@0:     bool parse_bson_array()
ferencd@0:     {
ferencd@0:         std::int32_t document_size;
ferencd@0:         get_number<std::int32_t, true>(input_format_t::bson, document_size);
ferencd@0: 
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not sax->start_array(std::size_t(-1))))
ferencd@0:         {
ferencd@0:             return false;
ferencd@0:         }
ferencd@0: 
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not parse_bson_element_list(/*is_array*/true)))
ferencd@0:         {
ferencd@0:             return false;
ferencd@0:         }
ferencd@0: 
ferencd@0:         return sax->end_array();
ferencd@0:     }
ferencd@0: 
ferencd@0:     //////////
ferencd@0:     // CBOR //
ferencd@0:     //////////
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @param[in] get_char  whether a new character should be retrieved from the
ferencd@0:                          input (true, default) or whether the last read
ferencd@0:                          character should be considered instead
ferencd@0: 
ferencd@0:     @return whether a valid CBOR value was passed to the SAX parser
ferencd@0:     */
ferencd@0:     bool parse_cbor_internal(const bool get_char = true)
ferencd@0:     {
ferencd@0:         switch (get_char ? get() : current)
ferencd@0:         {
ferencd@0:             // EOF
ferencd@0:             case std::char_traits<char>::eof():
ferencd@0:                 return unexpect_eof(input_format_t::cbor, "value");
ferencd@0: 
ferencd@0:             // Integer 0x00..0x17 (0..23)
ferencd@0:             case 0x00:
ferencd@0:             case 0x01:
ferencd@0:             case 0x02:
ferencd@0:             case 0x03:
ferencd@0:             case 0x04:
ferencd@0:             case 0x05:
ferencd@0:             case 0x06:
ferencd@0:             case 0x07:
ferencd@0:             case 0x08:
ferencd@0:             case 0x09:
ferencd@0:             case 0x0A:
ferencd@0:             case 0x0B:
ferencd@0:             case 0x0C:
ferencd@0:             case 0x0D:
ferencd@0:             case 0x0E:
ferencd@0:             case 0x0F:
ferencd@0:             case 0x10:
ferencd@0:             case 0x11:
ferencd@0:             case 0x12:
ferencd@0:             case 0x13:
ferencd@0:             case 0x14:
ferencd@0:             case 0x15:
ferencd@0:             case 0x16:
ferencd@0:             case 0x17:
ferencd@0:                 return sax->number_unsigned(static_cast<number_unsigned_t>(current));
ferencd@0: 
ferencd@0:             case 0x18: // Unsigned integer (one-byte uint8_t follows)
ferencd@0:             {
ferencd@0:                 std::uint8_t number;
ferencd@0:                 return get_number(input_format_t::cbor, number) and sax->number_unsigned(number);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x19: // Unsigned integer (two-byte uint16_t follows)
ferencd@0:             {
ferencd@0:                 std::uint16_t number;
ferencd@0:                 return get_number(input_format_t::cbor, number) and sax->number_unsigned(number);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x1A: // Unsigned integer (four-byte uint32_t follows)
ferencd@0:             {
ferencd@0:                 std::uint32_t number;
ferencd@0:                 return get_number(input_format_t::cbor, number) and sax->number_unsigned(number);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x1B: // Unsigned integer (eight-byte uint64_t follows)
ferencd@0:             {
ferencd@0:                 std::uint64_t number;
ferencd@0:                 return get_number(input_format_t::cbor, number) and sax->number_unsigned(number);
ferencd@0:             }
ferencd@0: 
ferencd@0:             // Negative integer -1-0x00..-1-0x17 (-1..-24)
ferencd@0:             case 0x20:
ferencd@0:             case 0x21:
ferencd@0:             case 0x22:
ferencd@0:             case 0x23:
ferencd@0:             case 0x24:
ferencd@0:             case 0x25:
ferencd@0:             case 0x26:
ferencd@0:             case 0x27:
ferencd@0:             case 0x28:
ferencd@0:             case 0x29:
ferencd@0:             case 0x2A:
ferencd@0:             case 0x2B:
ferencd@0:             case 0x2C:
ferencd@0:             case 0x2D:
ferencd@0:             case 0x2E:
ferencd@0:             case 0x2F:
ferencd@0:             case 0x30:
ferencd@0:             case 0x31:
ferencd@0:             case 0x32:
ferencd@0:             case 0x33:
ferencd@0:             case 0x34:
ferencd@0:             case 0x35:
ferencd@0:             case 0x36:
ferencd@0:             case 0x37:
ferencd@0:                 return sax->number_integer(static_cast<std::int8_t>(0x20 - 1 - current));
ferencd@0: 
ferencd@0:             case 0x38: // Negative integer (one-byte uint8_t follows)
ferencd@0:             {
ferencd@0:                 std::uint8_t number;
ferencd@0:                 return get_number(input_format_t::cbor, number) and sax->number_integer(static_cast<number_integer_t>(-1) - number);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x39: // Negative integer -1-n (two-byte uint16_t follows)
ferencd@0:             {
ferencd@0:                 std::uint16_t number;
ferencd@0:                 return get_number(input_format_t::cbor, number) and sax->number_integer(static_cast<number_integer_t>(-1) - number);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x3A: // Negative integer -1-n (four-byte uint32_t follows)
ferencd@0:             {
ferencd@0:                 std::uint32_t number;
ferencd@0:                 return get_number(input_format_t::cbor, number) and sax->number_integer(static_cast<number_integer_t>(-1) - number);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x3B: // Negative integer -1-n (eight-byte uint64_t follows)
ferencd@0:             {
ferencd@0:                 std::uint64_t number;
ferencd@0:                 return get_number(input_format_t::cbor, number) and sax->number_integer(static_cast<number_integer_t>(-1)
ferencd@0:                         - static_cast<number_integer_t>(number));
ferencd@0:             }
ferencd@0: 
ferencd@0:             // UTF-8 string (0x00..0x17 bytes follow)
ferencd@0:             case 0x60:
ferencd@0:             case 0x61:
ferencd@0:             case 0x62:
ferencd@0:             case 0x63:
ferencd@0:             case 0x64:
ferencd@0:             case 0x65:
ferencd@0:             case 0x66:
ferencd@0:             case 0x67:
ferencd@0:             case 0x68:
ferencd@0:             case 0x69:
ferencd@0:             case 0x6A:
ferencd@0:             case 0x6B:
ferencd@0:             case 0x6C:
ferencd@0:             case 0x6D:
ferencd@0:             case 0x6E:
ferencd@0:             case 0x6F:
ferencd@0:             case 0x70:
ferencd@0:             case 0x71:
ferencd@0:             case 0x72:
ferencd@0:             case 0x73:
ferencd@0:             case 0x74:
ferencd@0:             case 0x75:
ferencd@0:             case 0x76:
ferencd@0:             case 0x77:
ferencd@0:             case 0x78: // UTF-8 string (one-byte uint8_t for n follows)
ferencd@0:             case 0x79: // UTF-8 string (two-byte uint16_t for n follow)
ferencd@0:             case 0x7A: // UTF-8 string (four-byte uint32_t for n follow)
ferencd@0:             case 0x7B: // UTF-8 string (eight-byte uint64_t for n follow)
ferencd@0:             case 0x7F: // UTF-8 string (indefinite length)
ferencd@0:             {
ferencd@0:                 string_t s;
ferencd@0:                 return get_cbor_string(s) and sax->string(s);
ferencd@0:             }
ferencd@0: 
ferencd@0:             // array (0x00..0x17 data items follow)
ferencd@0:             case 0x80:
ferencd@0:             case 0x81:
ferencd@0:             case 0x82:
ferencd@0:             case 0x83:
ferencd@0:             case 0x84:
ferencd@0:             case 0x85:
ferencd@0:             case 0x86:
ferencd@0:             case 0x87:
ferencd@0:             case 0x88:
ferencd@0:             case 0x89:
ferencd@0:             case 0x8A:
ferencd@0:             case 0x8B:
ferencd@0:             case 0x8C:
ferencd@0:             case 0x8D:
ferencd@0:             case 0x8E:
ferencd@0:             case 0x8F:
ferencd@0:             case 0x90:
ferencd@0:             case 0x91:
ferencd@0:             case 0x92:
ferencd@0:             case 0x93:
ferencd@0:             case 0x94:
ferencd@0:             case 0x95:
ferencd@0:             case 0x96:
ferencd@0:             case 0x97:
ferencd@0:                 return get_cbor_array(static_cast<std::size_t>(static_cast<unsigned int>(current) & 0x1Fu));
ferencd@0: 
ferencd@0:             case 0x98: // array (one-byte uint8_t for n follows)
ferencd@0:             {
ferencd@0:                 std::uint8_t len;
ferencd@0:                 return get_number(input_format_t::cbor, len) and get_cbor_array(static_cast<std::size_t>(len));
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x99: // array (two-byte uint16_t for n follow)
ferencd@0:             {
ferencd@0:                 std::uint16_t len;
ferencd@0:                 return get_number(input_format_t::cbor, len) and get_cbor_array(static_cast<std::size_t>(len));
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x9A: // array (four-byte uint32_t for n follow)
ferencd@0:             {
ferencd@0:                 std::uint32_t len;
ferencd@0:                 return get_number(input_format_t::cbor, len) and get_cbor_array(static_cast<std::size_t>(len));
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x9B: // array (eight-byte uint64_t for n follow)
ferencd@0:             {
ferencd@0:                 std::uint64_t len;
ferencd@0:                 return get_number(input_format_t::cbor, len) and get_cbor_array(static_cast<std::size_t>(len));
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x9F: // array (indefinite length)
ferencd@0:                 return get_cbor_array(std::size_t(-1));
ferencd@0: 
ferencd@0:             // map (0x00..0x17 pairs of data items follow)
ferencd@0:             case 0xA0:
ferencd@0:             case 0xA1:
ferencd@0:             case 0xA2:
ferencd@0:             case 0xA3:
ferencd@0:             case 0xA4:
ferencd@0:             case 0xA5:
ferencd@0:             case 0xA6:
ferencd@0:             case 0xA7:
ferencd@0:             case 0xA8:
ferencd@0:             case 0xA9:
ferencd@0:             case 0xAA:
ferencd@0:             case 0xAB:
ferencd@0:             case 0xAC:
ferencd@0:             case 0xAD:
ferencd@0:             case 0xAE:
ferencd@0:             case 0xAF:
ferencd@0:             case 0xB0:
ferencd@0:             case 0xB1:
ferencd@0:             case 0xB2:
ferencd@0:             case 0xB3:
ferencd@0:             case 0xB4:
ferencd@0:             case 0xB5:
ferencd@0:             case 0xB6:
ferencd@0:             case 0xB7:
ferencd@0:                 return get_cbor_object(static_cast<std::size_t>(static_cast<unsigned int>(current) & 0x1Fu));
ferencd@0: 
ferencd@0:             case 0xB8: // map (one-byte uint8_t for n follows)
ferencd@0:             {
ferencd@0:                 std::uint8_t len;
ferencd@0:                 return get_number(input_format_t::cbor, len) and get_cbor_object(static_cast<std::size_t>(len));
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xB9: // map (two-byte uint16_t for n follow)
ferencd@0:             {
ferencd@0:                 std::uint16_t len;
ferencd@0:                 return get_number(input_format_t::cbor, len) and get_cbor_object(static_cast<std::size_t>(len));
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xBA: // map (four-byte uint32_t for n follow)
ferencd@0:             {
ferencd@0:                 std::uint32_t len;
ferencd@0:                 return get_number(input_format_t::cbor, len) and get_cbor_object(static_cast<std::size_t>(len));
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xBB: // map (eight-byte uint64_t for n follow)
ferencd@0:             {
ferencd@0:                 std::uint64_t len;
ferencd@0:                 return get_number(input_format_t::cbor, len) and get_cbor_object(static_cast<std::size_t>(len));
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xBF: // map (indefinite length)
ferencd@0:                 return get_cbor_object(std::size_t(-1));
ferencd@0: 
ferencd@0:             case 0xF4: // false
ferencd@0:                 return sax->boolean(false);
ferencd@0: 
ferencd@0:             case 0xF5: // true
ferencd@0:                 return sax->boolean(true);
ferencd@0: 
ferencd@0:             case 0xF6: // null
ferencd@0:                 return sax->null();
ferencd@0: 
ferencd@0:             case 0xF9: // Half-Precision Float (two-byte IEEE 754)
ferencd@0:             {
ferencd@0:                 const int byte1_raw = get();
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(not unexpect_eof(input_format_t::cbor, "number")))
ferencd@0:                 {
ferencd@0:                     return false;
ferencd@0:                 }
ferencd@0:                 const int byte2_raw = get();
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(not unexpect_eof(input_format_t::cbor, "number")))
ferencd@0:                 {
ferencd@0:                     return false;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 const auto byte1 = static_cast<unsigned char>(byte1_raw);
ferencd@0:                 const auto byte2 = static_cast<unsigned char>(byte2_raw);
ferencd@0: 
ferencd@0:                 // code from RFC 7049, Appendix D, Figure 3:
ferencd@0:                 // As half-precision floating-point numbers were only added
ferencd@0:                 // to IEEE 754 in 2008, today's programming platforms often
ferencd@0:                 // still only have limited support for them. It is very
ferencd@0:                 // easy to include at least decoding support for them even
ferencd@0:                 // without such support. An example of a small decoder for
ferencd@0:                 // half-precision floating-point numbers in the C language
ferencd@0:                 // is shown in Fig. 3.
ferencd@0:                 const auto half = static_cast<unsigned int>((byte1 << 8u) + byte2);
ferencd@0:                 const double val = [&half]
ferencd@0:                 {
ferencd@0:                     const int exp = (half >> 10u) & 0x1Fu;
ferencd@0:                     const unsigned int mant = half & 0x3FFu;
ferencd@0:                     assert(0 <= exp and exp <= 32);
ferencd@0:                     assert(0 <= mant and mant <= 1024);
ferencd@0:                     switch (exp)
ferencd@0:                     {
ferencd@0:                         case 0:
ferencd@0:                             return std::ldexp(mant, -24);
ferencd@0:                         case 31:
ferencd@0:                             return (mant == 0)
ferencd@0:                             ? std::numeric_limits<double>::infinity()
ferencd@0:                             : std::numeric_limits<double>::quiet_NaN();
ferencd@0:                         default:
ferencd@0:                             return std::ldexp(mant + 1024, exp - 25);
ferencd@0:                     }
ferencd@0:                 }();
ferencd@0:                 return sax->number_float((half & 0x8000u) != 0
ferencd@0:                                          ? static_cast<number_float_t>(-val)
ferencd@0:                                          : static_cast<number_float_t>(val), "");
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xFA: // Single-Precision Float (four-byte IEEE 754)
ferencd@0:             {
ferencd@0:                 float number;
ferencd@0:                 return get_number(input_format_t::cbor, number) and sax->number_float(static_cast<number_float_t>(number), "");
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xFB: // Double-Precision Float (eight-byte IEEE 754)
ferencd@0:             {
ferencd@0:                 double number;
ferencd@0:                 return get_number(input_format_t::cbor, number) and sax->number_float(static_cast<number_float_t>(number), "");
ferencd@0:             }
ferencd@0: 
ferencd@0:             default: // anything else (0xFF is handled inside the other types)
ferencd@0:             {
ferencd@0:                 auto last_token = get_token_string();
ferencd@0:                 return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::cbor, "invalid byte: 0x" + last_token, "value")));
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief reads a CBOR string
ferencd@0: 
ferencd@0:     This function first reads starting bytes to determine the expected
ferencd@0:     string length and then copies this number of bytes into a string.
ferencd@0:     Additionally, CBOR's strings with indefinite lengths are supported.
ferencd@0: 
ferencd@0:     @param[out] result  created string
ferencd@0: 
ferencd@0:     @return whether string creation completed
ferencd@0:     */
ferencd@0:     bool get_cbor_string(string_t& result)
ferencd@0:     {
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not unexpect_eof(input_format_t::cbor, "string")))
ferencd@0:         {
ferencd@0:             return false;
ferencd@0:         }
ferencd@0: 
ferencd@0:         switch (current)
ferencd@0:         {
ferencd@0:             // UTF-8 string (0x00..0x17 bytes follow)
ferencd@0:             case 0x60:
ferencd@0:             case 0x61:
ferencd@0:             case 0x62:
ferencd@0:             case 0x63:
ferencd@0:             case 0x64:
ferencd@0:             case 0x65:
ferencd@0:             case 0x66:
ferencd@0:             case 0x67:
ferencd@0:             case 0x68:
ferencd@0:             case 0x69:
ferencd@0:             case 0x6A:
ferencd@0:             case 0x6B:
ferencd@0:             case 0x6C:
ferencd@0:             case 0x6D:
ferencd@0:             case 0x6E:
ferencd@0:             case 0x6F:
ferencd@0:             case 0x70:
ferencd@0:             case 0x71:
ferencd@0:             case 0x72:
ferencd@0:             case 0x73:
ferencd@0:             case 0x74:
ferencd@0:             case 0x75:
ferencd@0:             case 0x76:
ferencd@0:             case 0x77:
ferencd@0:             {
ferencd@0:                 return get_string(input_format_t::cbor, static_cast<unsigned int>(current) & 0x1Fu, result);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x78: // UTF-8 string (one-byte uint8_t for n follows)
ferencd@0:             {
ferencd@0:                 std::uint8_t len;
ferencd@0:                 return get_number(input_format_t::cbor, len) and get_string(input_format_t::cbor, len, result);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x79: // UTF-8 string (two-byte uint16_t for n follow)
ferencd@0:             {
ferencd@0:                 std::uint16_t len;
ferencd@0:                 return get_number(input_format_t::cbor, len) and get_string(input_format_t::cbor, len, result);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x7A: // UTF-8 string (four-byte uint32_t for n follow)
ferencd@0:             {
ferencd@0:                 std::uint32_t len;
ferencd@0:                 return get_number(input_format_t::cbor, len) and get_string(input_format_t::cbor, len, result);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x7B: // UTF-8 string (eight-byte uint64_t for n follow)
ferencd@0:             {
ferencd@0:                 std::uint64_t len;
ferencd@0:                 return get_number(input_format_t::cbor, len) and get_string(input_format_t::cbor, len, result);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0x7F: // UTF-8 string (indefinite length)
ferencd@0:             {
ferencd@0:                 while (get() != 0xFF)
ferencd@0:                 {
ferencd@0:                     string_t chunk;
ferencd@0:                     if (not get_cbor_string(chunk))
ferencd@0:                     {
ferencd@0:                         return false;
ferencd@0:                     }
ferencd@0:                     result.append(chunk);
ferencd@0:                 }
ferencd@0:                 return true;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 auto last_token = get_token_string();
ferencd@0:                 return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::cbor, "expected length specification (0x60-0x7B) or indefinite string type (0x7F); last byte: 0x" + last_token, "string")));
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @param[in] len  the length of the array or std::size_t(-1) for an
ferencd@0:                     array of indefinite size
ferencd@0:     @return whether array creation completed
ferencd@0:     */
ferencd@0:     bool get_cbor_array(const std::size_t len)
ferencd@0:     {
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not sax->start_array(len)))
ferencd@0:         {
ferencd@0:             return false;
ferencd@0:         }
ferencd@0: 
ferencd@0:         if (len != std::size_t(-1))
ferencd@0:         {
ferencd@0:             for (std::size_t i = 0; i < len; ++i)
ferencd@0:             {
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(not parse_cbor_internal()))
ferencd@0:                 {
ferencd@0:                     return false;
ferencd@0:                 }
ferencd@0:             }
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             while (get() != 0xFF)
ferencd@0:             {
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(not parse_cbor_internal(false)))
ferencd@0:                 {
ferencd@0:                     return false;
ferencd@0:                 }
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         return sax->end_array();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @param[in] len  the length of the object or std::size_t(-1) for an
ferencd@0:                     object of indefinite size
ferencd@0:     @return whether object creation completed
ferencd@0:     */
ferencd@0:     bool get_cbor_object(const std::size_t len)
ferencd@0:     {
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not sax->start_object(len)))
ferencd@0:         {
ferencd@0:             return false;
ferencd@0:         }
ferencd@0: 
ferencd@0:         string_t key;
ferencd@0:         if (len != std::size_t(-1))
ferencd@0:         {
ferencd@0:             for (std::size_t i = 0; i < len; ++i)
ferencd@0:             {
ferencd@0:                 get();
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(not get_cbor_string(key) or not sax->key(key)))
ferencd@0:                 {
ferencd@0:                     return false;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(not parse_cbor_internal()))
ferencd@0:                 {
ferencd@0:                     return false;
ferencd@0:                 }
ferencd@0:                 key.clear();
ferencd@0:             }
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             while (get() != 0xFF)
ferencd@0:             {
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(not get_cbor_string(key) or not sax->key(key)))
ferencd@0:                 {
ferencd@0:                     return false;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(not parse_cbor_internal()))
ferencd@0:                 {
ferencd@0:                     return false;
ferencd@0:                 }
ferencd@0:                 key.clear();
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         return sax->end_object();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /////////////
ferencd@0:     // MsgPack //
ferencd@0:     /////////////
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @return whether a valid MessagePack value was passed to the SAX parser
ferencd@0:     */
ferencd@0:     bool parse_msgpack_internal()
ferencd@0:     {
ferencd@0:         switch (get())
ferencd@0:         {
ferencd@0:             // EOF
ferencd@0:             case std::char_traits<char>::eof():
ferencd@0:                 return unexpect_eof(input_format_t::msgpack, "value");
ferencd@0: 
ferencd@0:             // positive fixint
ferencd@0:             case 0x00:
ferencd@0:             case 0x01:
ferencd@0:             case 0x02:
ferencd@0:             case 0x03:
ferencd@0:             case 0x04:
ferencd@0:             case 0x05:
ferencd@0:             case 0x06:
ferencd@0:             case 0x07:
ferencd@0:             case 0x08:
ferencd@0:             case 0x09:
ferencd@0:             case 0x0A:
ferencd@0:             case 0x0B:
ferencd@0:             case 0x0C:
ferencd@0:             case 0x0D:
ferencd@0:             case 0x0E:
ferencd@0:             case 0x0F:
ferencd@0:             case 0x10:
ferencd@0:             case 0x11:
ferencd@0:             case 0x12:
ferencd@0:             case 0x13:
ferencd@0:             case 0x14:
ferencd@0:             case 0x15:
ferencd@0:             case 0x16:
ferencd@0:             case 0x17:
ferencd@0:             case 0x18:
ferencd@0:             case 0x19:
ferencd@0:             case 0x1A:
ferencd@0:             case 0x1B:
ferencd@0:             case 0x1C:
ferencd@0:             case 0x1D:
ferencd@0:             case 0x1E:
ferencd@0:             case 0x1F:
ferencd@0:             case 0x20:
ferencd@0:             case 0x21:
ferencd@0:             case 0x22:
ferencd@0:             case 0x23:
ferencd@0:             case 0x24:
ferencd@0:             case 0x25:
ferencd@0:             case 0x26:
ferencd@0:             case 0x27:
ferencd@0:             case 0x28:
ferencd@0:             case 0x29:
ferencd@0:             case 0x2A:
ferencd@0:             case 0x2B:
ferencd@0:             case 0x2C:
ferencd@0:             case 0x2D:
ferencd@0:             case 0x2E:
ferencd@0:             case 0x2F:
ferencd@0:             case 0x30:
ferencd@0:             case 0x31:
ferencd@0:             case 0x32:
ferencd@0:             case 0x33:
ferencd@0:             case 0x34:
ferencd@0:             case 0x35:
ferencd@0:             case 0x36:
ferencd@0:             case 0x37:
ferencd@0:             case 0x38:
ferencd@0:             case 0x39:
ferencd@0:             case 0x3A:
ferencd@0:             case 0x3B:
ferencd@0:             case 0x3C:
ferencd@0:             case 0x3D:
ferencd@0:             case 0x3E:
ferencd@0:             case 0x3F:
ferencd@0:             case 0x40:
ferencd@0:             case 0x41:
ferencd@0:             case 0x42:
ferencd@0:             case 0x43:
ferencd@0:             case 0x44:
ferencd@0:             case 0x45:
ferencd@0:             case 0x46:
ferencd@0:             case 0x47:
ferencd@0:             case 0x48:
ferencd@0:             case 0x49:
ferencd@0:             case 0x4A:
ferencd@0:             case 0x4B:
ferencd@0:             case 0x4C:
ferencd@0:             case 0x4D:
ferencd@0:             case 0x4E:
ferencd@0:             case 0x4F:
ferencd@0:             case 0x50:
ferencd@0:             case 0x51:
ferencd@0:             case 0x52:
ferencd@0:             case 0x53:
ferencd@0:             case 0x54:
ferencd@0:             case 0x55:
ferencd@0:             case 0x56:
ferencd@0:             case 0x57:
ferencd@0:             case 0x58:
ferencd@0:             case 0x59:
ferencd@0:             case 0x5A:
ferencd@0:             case 0x5B:
ferencd@0:             case 0x5C:
ferencd@0:             case 0x5D:
ferencd@0:             case 0x5E:
ferencd@0:             case 0x5F:
ferencd@0:             case 0x60:
ferencd@0:             case 0x61:
ferencd@0:             case 0x62:
ferencd@0:             case 0x63:
ferencd@0:             case 0x64:
ferencd@0:             case 0x65:
ferencd@0:             case 0x66:
ferencd@0:             case 0x67:
ferencd@0:             case 0x68:
ferencd@0:             case 0x69:
ferencd@0:             case 0x6A:
ferencd@0:             case 0x6B:
ferencd@0:             case 0x6C:
ferencd@0:             case 0x6D:
ferencd@0:             case 0x6E:
ferencd@0:             case 0x6F:
ferencd@0:             case 0x70:
ferencd@0:             case 0x71:
ferencd@0:             case 0x72:
ferencd@0:             case 0x73:
ferencd@0:             case 0x74:
ferencd@0:             case 0x75:
ferencd@0:             case 0x76:
ferencd@0:             case 0x77:
ferencd@0:             case 0x78:
ferencd@0:             case 0x79:
ferencd@0:             case 0x7A:
ferencd@0:             case 0x7B:
ferencd@0:             case 0x7C:
ferencd@0:             case 0x7D:
ferencd@0:             case 0x7E:
ferencd@0:             case 0x7F:
ferencd@0:                 return sax->number_unsigned(static_cast<number_unsigned_t>(current));
ferencd@0: 
ferencd@0:             // fixmap
ferencd@0:             case 0x80:
ferencd@0:             case 0x81:
ferencd@0:             case 0x82:
ferencd@0:             case 0x83:
ferencd@0:             case 0x84:
ferencd@0:             case 0x85:
ferencd@0:             case 0x86:
ferencd@0:             case 0x87:
ferencd@0:             case 0x88:
ferencd@0:             case 0x89:
ferencd@0:             case 0x8A:
ferencd@0:             case 0x8B:
ferencd@0:             case 0x8C:
ferencd@0:             case 0x8D:
ferencd@0:             case 0x8E:
ferencd@0:             case 0x8F:
ferencd@0:                 return get_msgpack_object(static_cast<std::size_t>(static_cast<unsigned int>(current) & 0x0Fu));
ferencd@0: 
ferencd@0:             // fixarray
ferencd@0:             case 0x90:
ferencd@0:             case 0x91:
ferencd@0:             case 0x92:
ferencd@0:             case 0x93:
ferencd@0:             case 0x94:
ferencd@0:             case 0x95:
ferencd@0:             case 0x96:
ferencd@0:             case 0x97:
ferencd@0:             case 0x98:
ferencd@0:             case 0x99:
ferencd@0:             case 0x9A:
ferencd@0:             case 0x9B:
ferencd@0:             case 0x9C:
ferencd@0:             case 0x9D:
ferencd@0:             case 0x9E:
ferencd@0:             case 0x9F:
ferencd@0:                 return get_msgpack_array(static_cast<std::size_t>(static_cast<unsigned int>(current) & 0x0Fu));
ferencd@0: 
ferencd@0:             // fixstr
ferencd@0:             case 0xA0:
ferencd@0:             case 0xA1:
ferencd@0:             case 0xA2:
ferencd@0:             case 0xA3:
ferencd@0:             case 0xA4:
ferencd@0:             case 0xA5:
ferencd@0:             case 0xA6:
ferencd@0:             case 0xA7:
ferencd@0:             case 0xA8:
ferencd@0:             case 0xA9:
ferencd@0:             case 0xAA:
ferencd@0:             case 0xAB:
ferencd@0:             case 0xAC:
ferencd@0:             case 0xAD:
ferencd@0:             case 0xAE:
ferencd@0:             case 0xAF:
ferencd@0:             case 0xB0:
ferencd@0:             case 0xB1:
ferencd@0:             case 0xB2:
ferencd@0:             case 0xB3:
ferencd@0:             case 0xB4:
ferencd@0:             case 0xB5:
ferencd@0:             case 0xB6:
ferencd@0:             case 0xB7:
ferencd@0:             case 0xB8:
ferencd@0:             case 0xB9:
ferencd@0:             case 0xBA:
ferencd@0:             case 0xBB:
ferencd@0:             case 0xBC:
ferencd@0:             case 0xBD:
ferencd@0:             case 0xBE:
ferencd@0:             case 0xBF:
ferencd@0:             case 0xD9: // str 8
ferencd@0:             case 0xDA: // str 16
ferencd@0:             case 0xDB: // str 32
ferencd@0:             {
ferencd@0:                 string_t s;
ferencd@0:                 return get_msgpack_string(s) and sax->string(s);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xC0: // nil
ferencd@0:                 return sax->null();
ferencd@0: 
ferencd@0:             case 0xC2: // false
ferencd@0:                 return sax->boolean(false);
ferencd@0: 
ferencd@0:             case 0xC3: // true
ferencd@0:                 return sax->boolean(true);
ferencd@0: 
ferencd@0:             case 0xCA: // float 32
ferencd@0:             {
ferencd@0:                 float number;
ferencd@0:                 return get_number(input_format_t::msgpack, number) and sax->number_float(static_cast<number_float_t>(number), "");
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xCB: // float 64
ferencd@0:             {
ferencd@0:                 double number;
ferencd@0:                 return get_number(input_format_t::msgpack, number) and sax->number_float(static_cast<number_float_t>(number), "");
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xCC: // uint 8
ferencd@0:             {
ferencd@0:                 std::uint8_t number;
ferencd@0:                 return get_number(input_format_t::msgpack, number) and sax->number_unsigned(number);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xCD: // uint 16
ferencd@0:             {
ferencd@0:                 std::uint16_t number;
ferencd@0:                 return get_number(input_format_t::msgpack, number) and sax->number_unsigned(number);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xCE: // uint 32
ferencd@0:             {
ferencd@0:                 std::uint32_t number;
ferencd@0:                 return get_number(input_format_t::msgpack, number) and sax->number_unsigned(number);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xCF: // uint 64
ferencd@0:             {
ferencd@0:                 std::uint64_t number;
ferencd@0:                 return get_number(input_format_t::msgpack, number) and sax->number_unsigned(number);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xD0: // int 8
ferencd@0:             {
ferencd@0:                 std::int8_t number;
ferencd@0:                 return get_number(input_format_t::msgpack, number) and sax->number_integer(number);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xD1: // int 16
ferencd@0:             {
ferencd@0:                 std::int16_t number;
ferencd@0:                 return get_number(input_format_t::msgpack, number) and sax->number_integer(number);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xD2: // int 32
ferencd@0:             {
ferencd@0:                 std::int32_t number;
ferencd@0:                 return get_number(input_format_t::msgpack, number) and sax->number_integer(number);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xD3: // int 64
ferencd@0:             {
ferencd@0:                 std::int64_t number;
ferencd@0:                 return get_number(input_format_t::msgpack, number) and sax->number_integer(number);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xDC: // array 16
ferencd@0:             {
ferencd@0:                 std::uint16_t len;
ferencd@0:                 return get_number(input_format_t::msgpack, len) and get_msgpack_array(static_cast<std::size_t>(len));
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xDD: // array 32
ferencd@0:             {
ferencd@0:                 std::uint32_t len;
ferencd@0:                 return get_number(input_format_t::msgpack, len) and get_msgpack_array(static_cast<std::size_t>(len));
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xDE: // map 16
ferencd@0:             {
ferencd@0:                 std::uint16_t len;
ferencd@0:                 return get_number(input_format_t::msgpack, len) and get_msgpack_object(static_cast<std::size_t>(len));
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xDF: // map 32
ferencd@0:             {
ferencd@0:                 std::uint32_t len;
ferencd@0:                 return get_number(input_format_t::msgpack, len) and get_msgpack_object(static_cast<std::size_t>(len));
ferencd@0:             }
ferencd@0: 
ferencd@0:             // negative fixint
ferencd@0:             case 0xE0:
ferencd@0:             case 0xE1:
ferencd@0:             case 0xE2:
ferencd@0:             case 0xE3:
ferencd@0:             case 0xE4:
ferencd@0:             case 0xE5:
ferencd@0:             case 0xE6:
ferencd@0:             case 0xE7:
ferencd@0:             case 0xE8:
ferencd@0:             case 0xE9:
ferencd@0:             case 0xEA:
ferencd@0:             case 0xEB:
ferencd@0:             case 0xEC:
ferencd@0:             case 0xED:
ferencd@0:             case 0xEE:
ferencd@0:             case 0xEF:
ferencd@0:             case 0xF0:
ferencd@0:             case 0xF1:
ferencd@0:             case 0xF2:
ferencd@0:             case 0xF3:
ferencd@0:             case 0xF4:
ferencd@0:             case 0xF5:
ferencd@0:             case 0xF6:
ferencd@0:             case 0xF7:
ferencd@0:             case 0xF8:
ferencd@0:             case 0xF9:
ferencd@0:             case 0xFA:
ferencd@0:             case 0xFB:
ferencd@0:             case 0xFC:
ferencd@0:             case 0xFD:
ferencd@0:             case 0xFE:
ferencd@0:             case 0xFF:
ferencd@0:                 return sax->number_integer(static_cast<std::int8_t>(current));
ferencd@0: 
ferencd@0:             default: // anything else
ferencd@0:             {
ferencd@0:                 auto last_token = get_token_string();
ferencd@0:                 return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::msgpack, "invalid byte: 0x" + last_token, "value")));
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief reads a MessagePack string
ferencd@0: 
ferencd@0:     This function first reads starting bytes to determine the expected
ferencd@0:     string length and then copies this number of bytes into a string.
ferencd@0: 
ferencd@0:     @param[out] result  created string
ferencd@0: 
ferencd@0:     @return whether string creation completed
ferencd@0:     */
ferencd@0:     bool get_msgpack_string(string_t& result)
ferencd@0:     {
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not unexpect_eof(input_format_t::msgpack, "string")))
ferencd@0:         {
ferencd@0:             return false;
ferencd@0:         }
ferencd@0: 
ferencd@0:         switch (current)
ferencd@0:         {
ferencd@0:             // fixstr
ferencd@0:             case 0xA0:
ferencd@0:             case 0xA1:
ferencd@0:             case 0xA2:
ferencd@0:             case 0xA3:
ferencd@0:             case 0xA4:
ferencd@0:             case 0xA5:
ferencd@0:             case 0xA6:
ferencd@0:             case 0xA7:
ferencd@0:             case 0xA8:
ferencd@0:             case 0xA9:
ferencd@0:             case 0xAA:
ferencd@0:             case 0xAB:
ferencd@0:             case 0xAC:
ferencd@0:             case 0xAD:
ferencd@0:             case 0xAE:
ferencd@0:             case 0xAF:
ferencd@0:             case 0xB0:
ferencd@0:             case 0xB1:
ferencd@0:             case 0xB2:
ferencd@0:             case 0xB3:
ferencd@0:             case 0xB4:
ferencd@0:             case 0xB5:
ferencd@0:             case 0xB6:
ferencd@0:             case 0xB7:
ferencd@0:             case 0xB8:
ferencd@0:             case 0xB9:
ferencd@0:             case 0xBA:
ferencd@0:             case 0xBB:
ferencd@0:             case 0xBC:
ferencd@0:             case 0xBD:
ferencd@0:             case 0xBE:
ferencd@0:             case 0xBF:
ferencd@0:             {
ferencd@0:                 return get_string(input_format_t::msgpack, static_cast<unsigned int>(current) & 0x1Fu, result);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xD9: // str 8
ferencd@0:             {
ferencd@0:                 std::uint8_t len;
ferencd@0:                 return get_number(input_format_t::msgpack, len) and get_string(input_format_t::msgpack, len, result);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xDA: // str 16
ferencd@0:             {
ferencd@0:                 std::uint16_t len;
ferencd@0:                 return get_number(input_format_t::msgpack, len) and get_string(input_format_t::msgpack, len, result);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 0xDB: // str 32
ferencd@0:             {
ferencd@0:                 std::uint32_t len;
ferencd@0:                 return get_number(input_format_t::msgpack, len) and get_string(input_format_t::msgpack, len, result);
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 auto last_token = get_token_string();
ferencd@0:                 return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::msgpack, "expected length specification (0xA0-0xBF, 0xD9-0xDB); last byte: 0x" + last_token, "string")));
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @param[in] len  the length of the array
ferencd@0:     @return whether array creation completed
ferencd@0:     */
ferencd@0:     bool get_msgpack_array(const std::size_t len)
ferencd@0:     {
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not sax->start_array(len)))
ferencd@0:         {
ferencd@0:             return false;
ferencd@0:         }
ferencd@0: 
ferencd@0:         for (std::size_t i = 0; i < len; ++i)
ferencd@0:         {
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(not parse_msgpack_internal()))
ferencd@0:             {
ferencd@0:                 return false;
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         return sax->end_array();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @param[in] len  the length of the object
ferencd@0:     @return whether object creation completed
ferencd@0:     */
ferencd@0:     bool get_msgpack_object(const std::size_t len)
ferencd@0:     {
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not sax->start_object(len)))
ferencd@0:         {
ferencd@0:             return false;
ferencd@0:         }
ferencd@0: 
ferencd@0:         string_t key;
ferencd@0:         for (std::size_t i = 0; i < len; ++i)
ferencd@0:         {
ferencd@0:             get();
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(not get_msgpack_string(key) or not sax->key(key)))
ferencd@0:             {
ferencd@0:                 return false;
ferencd@0:             }
ferencd@0: 
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(not parse_msgpack_internal()))
ferencd@0:             {
ferencd@0:                 return false;
ferencd@0:             }
ferencd@0:             key.clear();
ferencd@0:         }
ferencd@0: 
ferencd@0:         return sax->end_object();
ferencd@0:     }
ferencd@0: 
ferencd@0:     ////////////
ferencd@0:     // UBJSON //
ferencd@0:     ////////////
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @param[in] get_char  whether a new character should be retrieved from the
ferencd@0:                          input (true, default) or whether the last read
ferencd@0:                          character should be considered instead
ferencd@0: 
ferencd@0:     @return whether a valid UBJSON value was passed to the SAX parser
ferencd@0:     */
ferencd@0:     bool parse_ubjson_internal(const bool get_char = true)
ferencd@0:     {
ferencd@0:         return get_ubjson_value(get_char ? get_ignore_noop() : current);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief reads a UBJSON string
ferencd@0: 
ferencd@0:     This function is either called after reading the 'S' byte explicitly
ferencd@0:     indicating a string, or in case of an object key where the 'S' byte can be
ferencd@0:     left out.
ferencd@0: 
ferencd@0:     @param[out] result   created string
ferencd@0:     @param[in] get_char  whether a new character should be retrieved from the
ferencd@0:                          input (true, default) or whether the last read
ferencd@0:                          character should be considered instead
ferencd@0: 
ferencd@0:     @return whether string creation completed
ferencd@0:     */
ferencd@0:     bool get_ubjson_string(string_t& result, const bool get_char = true)
ferencd@0:     {
ferencd@0:         if (get_char)
ferencd@0:         {
ferencd@0:             get();  // TODO(niels): may we ignore N here?
ferencd@0:         }
ferencd@0: 
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not unexpect_eof(input_format_t::ubjson, "value")))
ferencd@0:         {
ferencd@0:             return false;
ferencd@0:         }
ferencd@0: 
ferencd@0:         switch (current)
ferencd@0:         {
ferencd@0:             case 'U':
ferencd@0:             {
ferencd@0:                 std::uint8_t len;
ferencd@0:                 return get_number(input_format_t::ubjson, len) and get_string(input_format_t::ubjson, len, result);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 'i':
ferencd@0:             {
ferencd@0:                 std::int8_t len;
ferencd@0:                 return get_number(input_format_t::ubjson, len) and get_string(input_format_t::ubjson, len, result);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 'I':
ferencd@0:             {
ferencd@0:                 std::int16_t len;
ferencd@0:                 return get_number(input_format_t::ubjson, len) and get_string(input_format_t::ubjson, len, result);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 'l':
ferencd@0:             {
ferencd@0:                 std::int32_t len;
ferencd@0:                 return get_number(input_format_t::ubjson, len) and get_string(input_format_t::ubjson, len, result);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 'L':
ferencd@0:             {
ferencd@0:                 std::int64_t len;
ferencd@0:                 return get_number(input_format_t::ubjson, len) and get_string(input_format_t::ubjson, len, result);
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:                 auto last_token = get_token_string();
ferencd@0:                 return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::ubjson, "expected length type specification (U, i, I, l, L); last byte: 0x" + last_token, "string")));
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @param[out] result  determined size
ferencd@0:     @return whether size determination completed
ferencd@0:     */
ferencd@0:     bool get_ubjson_size_value(std::size_t& result)
ferencd@0:     {
ferencd@0:         switch (get_ignore_noop())
ferencd@0:         {
ferencd@0:             case 'U':
ferencd@0:             {
ferencd@0:                 std::uint8_t number;
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(not get_number(input_format_t::ubjson, number)))
ferencd@0:                 {
ferencd@0:                     return false;
ferencd@0:                 }
ferencd@0:                 result = static_cast<std::size_t>(number);
ferencd@0:                 return true;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 'i':
ferencd@0:             {
ferencd@0:                 std::int8_t number;
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(not get_number(input_format_t::ubjson, number)))
ferencd@0:                 {
ferencd@0:                     return false;
ferencd@0:                 }
ferencd@0:                 result = static_cast<std::size_t>(number);
ferencd@0:                 return true;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 'I':
ferencd@0:             {
ferencd@0:                 std::int16_t number;
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(not get_number(input_format_t::ubjson, number)))
ferencd@0:                 {
ferencd@0:                     return false;
ferencd@0:                 }
ferencd@0:                 result = static_cast<std::size_t>(number);
ferencd@0:                 return true;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 'l':
ferencd@0:             {
ferencd@0:                 std::int32_t number;
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(not get_number(input_format_t::ubjson, number)))
ferencd@0:                 {
ferencd@0:                     return false;
ferencd@0:                 }
ferencd@0:                 result = static_cast<std::size_t>(number);
ferencd@0:                 return true;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 'L':
ferencd@0:             {
ferencd@0:                 std::int64_t number;
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(not get_number(input_format_t::ubjson, number)))
ferencd@0:                 {
ferencd@0:                     return false;
ferencd@0:                 }
ferencd@0:                 result = static_cast<std::size_t>(number);
ferencd@0:                 return true;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 auto last_token = get_token_string();
ferencd@0:                 return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::ubjson, "expected length type specification (U, i, I, l, L) after '#'; last byte: 0x" + last_token, "size")));
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief determine the type and size for a container
ferencd@0: 
ferencd@0:     In the optimized UBJSON format, a type and a size can be provided to allow
ferencd@0:     for a more compact representation.
ferencd@0: 
ferencd@0:     @param[out] result  pair of the size and the type
ferencd@0: 
ferencd@0:     @return whether pair creation completed
ferencd@0:     */
ferencd@0:     bool get_ubjson_size_type(std::pair<std::size_t, int>& result)
ferencd@0:     {
ferencd@0:         result.first = string_t::npos; // size
ferencd@0:         result.second = 0; // type
ferencd@0: 
ferencd@0:         get_ignore_noop();
ferencd@0: 
ferencd@0:         if (current == '$')
ferencd@0:         {
ferencd@0:             result.second = get();  // must not ignore 'N', because 'N' maybe the type
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(not unexpect_eof(input_format_t::ubjson, "type")))
ferencd@0:             {
ferencd@0:                 return false;
ferencd@0:             }
ferencd@0: 
ferencd@0:             get_ignore_noop();
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(current != '#'))
ferencd@0:             {
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(not unexpect_eof(input_format_t::ubjson, "value")))
ferencd@0:                 {
ferencd@0:                     return false;
ferencd@0:                 }
ferencd@0:                 auto last_token = get_token_string();
ferencd@0:                 return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::ubjson, "expected '#' after type information; last byte: 0x" + last_token, "size")));
ferencd@0:             }
ferencd@0: 
ferencd@0:             return get_ubjson_size_value(result.first);
ferencd@0:         }
ferencd@0: 
ferencd@0:         if (current == '#')
ferencd@0:         {
ferencd@0:             return get_ubjson_size_value(result.first);
ferencd@0:         }
ferencd@0: 
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @param prefix  the previously read or set type prefix
ferencd@0:     @return whether value creation completed
ferencd@0:     */
ferencd@0:     bool get_ubjson_value(const int prefix)
ferencd@0:     {
ferencd@0:         switch (prefix)
ferencd@0:         {
ferencd@0:             case std::char_traits<char>::eof():  // EOF
ferencd@0:                 return unexpect_eof(input_format_t::ubjson, "value");
ferencd@0: 
ferencd@0:             case 'T':  // true
ferencd@0:                 return sax->boolean(true);
ferencd@0:             case 'F':  // false
ferencd@0:                 return sax->boolean(false);
ferencd@0: 
ferencd@0:             case 'Z':  // null
ferencd@0:                 return sax->null();
ferencd@0: 
ferencd@0:             case 'U':
ferencd@0:             {
ferencd@0:                 std::uint8_t number;
ferencd@0:                 return get_number(input_format_t::ubjson, number) and sax->number_unsigned(number);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 'i':
ferencd@0:             {
ferencd@0:                 std::int8_t number;
ferencd@0:                 return get_number(input_format_t::ubjson, number) and sax->number_integer(number);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 'I':
ferencd@0:             {
ferencd@0:                 std::int16_t number;
ferencd@0:                 return get_number(input_format_t::ubjson, number) and sax->number_integer(number);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 'l':
ferencd@0:             {
ferencd@0:                 std::int32_t number;
ferencd@0:                 return get_number(input_format_t::ubjson, number) and sax->number_integer(number);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 'L':
ferencd@0:             {
ferencd@0:                 std::int64_t number;
ferencd@0:                 return get_number(input_format_t::ubjson, number) and sax->number_integer(number);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 'd':
ferencd@0:             {
ferencd@0:                 float number;
ferencd@0:                 return get_number(input_format_t::ubjson, number) and sax->number_float(static_cast<number_float_t>(number), "");
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 'D':
ferencd@0:             {
ferencd@0:                 double number;
ferencd@0:                 return get_number(input_format_t::ubjson, number) and sax->number_float(static_cast<number_float_t>(number), "");
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 'C':  // char
ferencd@0:             {
ferencd@0:                 get();
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(not unexpect_eof(input_format_t::ubjson, "char")))
ferencd@0:                 {
ferencd@0:                     return false;
ferencd@0:                 }
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(current > 127))
ferencd@0:                 {
ferencd@0:                     auto last_token = get_token_string();
ferencd@0:                     return sax->parse_error(chars_read, last_token, parse_error::create(113, chars_read, exception_message(input_format_t::ubjson, "byte after 'C' must be in range 0x00..0x7F; last byte: 0x" + last_token, "char")));
ferencd@0:                 }
ferencd@0:                 string_t s(1, static_cast<char>(current));
ferencd@0:                 return sax->string(s);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 'S':  // string
ferencd@0:             {
ferencd@0:                 string_t s;
ferencd@0:                 return get_ubjson_string(s) and sax->string(s);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case '[':  // array
ferencd@0:                 return get_ubjson_array();
ferencd@0: 
ferencd@0:             case '{':  // object
ferencd@0:                 return get_ubjson_object();
ferencd@0: 
ferencd@0:             default: // anything else
ferencd@0:             {
ferencd@0:                 auto last_token = get_token_string();
ferencd@0:                 return sax->parse_error(chars_read, last_token, parse_error::create(112, chars_read, exception_message(input_format_t::ubjson, "invalid byte: 0x" + last_token, "value")));
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @return whether array creation completed
ferencd@0:     */
ferencd@0:     bool get_ubjson_array()
ferencd@0:     {
ferencd@0:         std::pair<std::size_t, int> size_and_type;
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not get_ubjson_size_type(size_and_type)))
ferencd@0:         {
ferencd@0:             return false;
ferencd@0:         }
ferencd@0: 
ferencd@0:         if (size_and_type.first != string_t::npos)
ferencd@0:         {
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(not sax->start_array(size_and_type.first)))
ferencd@0:             {
ferencd@0:                 return false;
ferencd@0:             }
ferencd@0: 
ferencd@0:             if (size_and_type.second != 0)
ferencd@0:             {
ferencd@0:                 if (size_and_type.second != 'N')
ferencd@0:                 {
ferencd@0:                     for (std::size_t i = 0; i < size_and_type.first; ++i)
ferencd@0:                     {
ferencd@0:                         if (JSON_HEDLEY_UNLIKELY(not get_ubjson_value(size_and_type.second)))
ferencd@0:                         {
ferencd@0:                             return false;
ferencd@0:                         }
ferencd@0:                     }
ferencd@0:                 }
ferencd@0:             }
ferencd@0:             else
ferencd@0:             {
ferencd@0:                 for (std::size_t i = 0; i < size_and_type.first; ++i)
ferencd@0:                 {
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(not parse_ubjson_internal()))
ferencd@0:                     {
ferencd@0:                         return false;
ferencd@0:                     }
ferencd@0:                 }
ferencd@0:             }
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(not sax->start_array(std::size_t(-1))))
ferencd@0:             {
ferencd@0:                 return false;
ferencd@0:             }
ferencd@0: 
ferencd@0:             while (current != ']')
ferencd@0:             {
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(not parse_ubjson_internal(false)))
ferencd@0:                 {
ferencd@0:                     return false;
ferencd@0:                 }
ferencd@0:                 get_ignore_noop();
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         return sax->end_array();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @return whether object creation completed
ferencd@0:     */
ferencd@0:     bool get_ubjson_object()
ferencd@0:     {
ferencd@0:         std::pair<std::size_t, int> size_and_type;
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not get_ubjson_size_type(size_and_type)))
ferencd@0:         {
ferencd@0:             return false;
ferencd@0:         }
ferencd@0: 
ferencd@0:         string_t key;
ferencd@0:         if (size_and_type.first != string_t::npos)
ferencd@0:         {
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(not sax->start_object(size_and_type.first)))
ferencd@0:             {
ferencd@0:                 return false;
ferencd@0:             }
ferencd@0: 
ferencd@0:             if (size_and_type.second != 0)
ferencd@0:             {
ferencd@0:                 for (std::size_t i = 0; i < size_and_type.first; ++i)
ferencd@0:                 {
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(not get_ubjson_string(key) or not sax->key(key)))
ferencd@0:                     {
ferencd@0:                         return false;
ferencd@0:                     }
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(not get_ubjson_value(size_and_type.second)))
ferencd@0:                     {
ferencd@0:                         return false;
ferencd@0:                     }
ferencd@0:                     key.clear();
ferencd@0:                 }
ferencd@0:             }
ferencd@0:             else
ferencd@0:             {
ferencd@0:                 for (std::size_t i = 0; i < size_and_type.first; ++i)
ferencd@0:                 {
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(not get_ubjson_string(key) or not sax->key(key)))
ferencd@0:                     {
ferencd@0:                         return false;
ferencd@0:                     }
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(not parse_ubjson_internal()))
ferencd@0:                     {
ferencd@0:                         return false;
ferencd@0:                     }
ferencd@0:                     key.clear();
ferencd@0:                 }
ferencd@0:             }
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(not sax->start_object(std::size_t(-1))))
ferencd@0:             {
ferencd@0:                 return false;
ferencd@0:             }
ferencd@0: 
ferencd@0:             while (current != '}')
ferencd@0:             {
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(not get_ubjson_string(key, false) or not sax->key(key)))
ferencd@0:                 {
ferencd@0:                     return false;
ferencd@0:                 }
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(not parse_ubjson_internal()))
ferencd@0:                 {
ferencd@0:                     return false;
ferencd@0:                 }
ferencd@0:                 get_ignore_noop();
ferencd@0:                 key.clear();
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         return sax->end_object();
ferencd@0:     }
ferencd@0: 
ferencd@0:     ///////////////////////
ferencd@0:     // Utility functions //
ferencd@0:     ///////////////////////
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief get next character from the input
ferencd@0: 
ferencd@0:     This function provides the interface to the used input adapter. It does
ferencd@0:     not throw in case the input reached EOF, but returns a -'ve valued
ferencd@0:     `std::char_traits<char>::eof()` in that case.
ferencd@0: 
ferencd@0:     @return character read from the input
ferencd@0:     */
ferencd@0:     int get()
ferencd@0:     {
ferencd@0:         ++chars_read;
ferencd@0:         return current = ia->get_character();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @return character read from the input after ignoring all 'N' entries
ferencd@0:     */
ferencd@0:     int get_ignore_noop()
ferencd@0:     {
ferencd@0:         do
ferencd@0:         {
ferencd@0:             get();
ferencd@0:         }
ferencd@0:         while (current == 'N');
ferencd@0: 
ferencd@0:         return current;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*
ferencd@0:     @brief read a number from the input
ferencd@0: 
ferencd@0:     @tparam NumberType the type of the number
ferencd@0:     @param[in] format   the current format (for diagnostics)
ferencd@0:     @param[out] result  number of type @a NumberType
ferencd@0: 
ferencd@0:     @return whether conversion completed
ferencd@0: 
ferencd@0:     @note This function needs to respect the system's endianess, because
ferencd@0:           bytes in CBOR, MessagePack, and UBJSON are stored in network order
ferencd@0:           (big endian) and therefore need reordering on little endian systems.
ferencd@0:     */
ferencd@0:     template<typename NumberType, bool InputIsLittleEndian = false>
ferencd@0:     bool get_number(const input_format_t format, NumberType& result)
ferencd@0:     {
ferencd@0:         // step 1: read input into array with system's byte order
ferencd@0:         std::array<std::uint8_t, sizeof(NumberType)> vec;
ferencd@0:         for (std::size_t i = 0; i < sizeof(NumberType); ++i)
ferencd@0:         {
ferencd@0:             get();
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(not unexpect_eof(format, "number")))
ferencd@0:             {
ferencd@0:                 return false;
ferencd@0:             }
ferencd@0: 
ferencd@0:             // reverse byte order prior to conversion if necessary
ferencd@0:             if (is_little_endian != InputIsLittleEndian)
ferencd@0:             {
ferencd@0:                 vec[sizeof(NumberType) - i - 1] = static_cast<std::uint8_t>(current);
ferencd@0:             }
ferencd@0:             else
ferencd@0:             {
ferencd@0:                 vec[i] = static_cast<std::uint8_t>(current); // LCOV_EXCL_LINE
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         // step 2: convert array into number of type T and return
ferencd@0:         std::memcpy(&result, vec.data(), sizeof(NumberType));
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief create a string by reading characters from the input
ferencd@0: 
ferencd@0:     @tparam NumberType the type of the number
ferencd@0:     @param[in] format the current format (for diagnostics)
ferencd@0:     @param[in] len number of characters to read
ferencd@0:     @param[out] result string created by reading @a len bytes
ferencd@0: 
ferencd@0:     @return whether string creation completed
ferencd@0: 
ferencd@0:     @note We can not reserve @a len bytes for the result, because @a len
ferencd@0:           may be too large. Usually, @ref unexpect_eof() detects the end of
ferencd@0:           the input before we run out of string memory.
ferencd@0:     */
ferencd@0:     template<typename NumberType>
ferencd@0:     bool get_string(const input_format_t format,
ferencd@0:                     const NumberType len,
ferencd@0:                     string_t& result)
ferencd@0:     {
ferencd@0:         bool success = true;
ferencd@0:         std::generate_n(std::back_inserter(result), len, [this, &success, &format]()
ferencd@0:         {
ferencd@0:             get();
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(not unexpect_eof(format, "string")))
ferencd@0:             {
ferencd@0:                 success = false;
ferencd@0:             }
ferencd@0:             return static_cast<char>(current);
ferencd@0:         });
ferencd@0:         return success;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @param[in] format   the current format (for diagnostics)
ferencd@0:     @param[in] context  further context information (for diagnostics)
ferencd@0:     @return whether the last read character is not EOF
ferencd@0:     */
ferencd@0:     JSON_HEDLEY_NON_NULL(3)
ferencd@0:     bool unexpect_eof(const input_format_t format, const char* context) const
ferencd@0:     {
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(current == std::char_traits<char>::eof()))
ferencd@0:         {
ferencd@0:             return sax->parse_error(chars_read, "<end of file>",
ferencd@0:                                     parse_error::create(110, chars_read, exception_message(format, "unexpected end of input", context)));
ferencd@0:         }
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @return a string representation of the last read byte
ferencd@0:     */
ferencd@0:     std::string get_token_string() const
ferencd@0:     {
ferencd@0:         std::array<char, 3> cr{{}};
ferencd@0:         (std::snprintf)(cr.data(), cr.size(), "%.2hhX", static_cast<unsigned char>(current));
ferencd@0:         return std::string{cr.data()};
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @param[in] format   the current format
ferencd@0:     @param[in] detail   a detailed error message
ferencd@0:     @param[in] context  further contect information
ferencd@0:     @return a message string to use in the parse_error exceptions
ferencd@0:     */
ferencd@0:     std::string exception_message(const input_format_t format,
ferencd@0:                                   const std::string& detail,
ferencd@0:                                   const std::string& context) const
ferencd@0:     {
ferencd@0:         std::string error_msg = "syntax error while parsing ";
ferencd@0: 
ferencd@0:         switch (format)
ferencd@0:         {
ferencd@0:             case input_format_t::cbor:
ferencd@0:                 error_msg += "CBOR";
ferencd@0:                 break;
ferencd@0: 
ferencd@0:             case input_format_t::msgpack:
ferencd@0:                 error_msg += "MessagePack";
ferencd@0:                 break;
ferencd@0: 
ferencd@0:             case input_format_t::ubjson:
ferencd@0:                 error_msg += "UBJSON";
ferencd@0:                 break;
ferencd@0: 
ferencd@0:             case input_format_t::bson:
ferencd@0:                 error_msg += "BSON";
ferencd@0:                 break;
ferencd@0: 
ferencd@0:             default:            // LCOV_EXCL_LINE
ferencd@0:                 assert(false);  // LCOV_EXCL_LINE
ferencd@0:         }
ferencd@0: 
ferencd@0:         return error_msg + " " + context + ": " + detail;
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     /// input adapter
ferencd@0:     input_adapter_t ia = nullptr;
ferencd@0: 
ferencd@0:     /// the current character
ferencd@0:     int current = std::char_traits<char>::eof();
ferencd@0: 
ferencd@0:     /// the number of characters read
ferencd@0:     std::size_t chars_read = 0;
ferencd@0: 
ferencd@0:     /// whether we can assume little endianess
ferencd@0:     const bool is_little_endian = little_endianess();
ferencd@0: 
ferencd@0:     /// the SAX parser
ferencd@0:     json_sax_t* sax = nullptr;
ferencd@0: };
ferencd@0: }  // namespace detail
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/input/input_adapters.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/input/lexer.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <array> // array
ferencd@0: #include <clocale> // localeconv
ferencd@0: #include <cstddef> // size_t
ferencd@0: #include <cstdio> // snprintf
ferencd@0: #include <cstdlib> // strtof, strtod, strtold, strtoll, strtoull
ferencd@0: #include <initializer_list> // initializer_list
ferencd@0: #include <string> // char_traits, string
ferencd@0: #include <utility> // move
ferencd@0: #include <vector> // vector
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/input/input_adapters.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/input/position_t.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/macro_scope.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: ///////////
ferencd@0: // lexer //
ferencd@0: ///////////
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief lexical analysis
ferencd@0: 
ferencd@0: This class organizes the lexical analysis during JSON deserialization.
ferencd@0: */
ferencd@0: template<typename BasicJsonType>
ferencd@0: class lexer
ferencd@0: {
ferencd@0:     using number_integer_t = typename BasicJsonType::number_integer_t;
ferencd@0:     using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
ferencd@0:     using number_float_t = typename BasicJsonType::number_float_t;
ferencd@0:     using string_t = typename BasicJsonType::string_t;
ferencd@0: 
ferencd@0:   public:
ferencd@0:     /// token types for the parser
ferencd@0:     enum class token_type
ferencd@0:     {
ferencd@0:         uninitialized,    ///< indicating the scanner is uninitialized
ferencd@0:         literal_true,     ///< the `true` literal
ferencd@0:         literal_false,    ///< the `false` literal
ferencd@0:         literal_null,     ///< the `null` literal
ferencd@0:         value_string,     ///< a string -- use get_string() for actual value
ferencd@0:         value_unsigned,   ///< an unsigned integer -- use get_number_unsigned() for actual value
ferencd@0:         value_integer,    ///< a signed integer -- use get_number_integer() for actual value
ferencd@0:         value_float,      ///< an floating point number -- use get_number_float() for actual value
ferencd@0:         begin_array,      ///< the character for array begin `[`
ferencd@0:         begin_object,     ///< the character for object begin `{`
ferencd@0:         end_array,        ///< the character for array end `]`
ferencd@0:         end_object,       ///< the character for object end `}`
ferencd@0:         name_separator,   ///< the name separator `:`
ferencd@0:         value_separator,  ///< the value separator `,`
ferencd@0:         parse_error,      ///< indicating a parse error
ferencd@0:         end_of_input,     ///< indicating the end of the input buffer
ferencd@0:         literal_or_value  ///< a literal or the begin of a value (only for diagnostics)
ferencd@0:     };
ferencd@0: 
ferencd@0:     /// return name of values of type token_type (only used for errors)
ferencd@0:     JSON_HEDLEY_RETURNS_NON_NULL
ferencd@0:     JSON_HEDLEY_CONST
ferencd@0:     static const char* token_type_name(const token_type t) noexcept
ferencd@0:     {
ferencd@0:         switch (t)
ferencd@0:         {
ferencd@0:             case token_type::uninitialized:
ferencd@0:                 return "<uninitialized>";
ferencd@0:             case token_type::literal_true:
ferencd@0:                 return "true literal";
ferencd@0:             case token_type::literal_false:
ferencd@0:                 return "false literal";
ferencd@0:             case token_type::literal_null:
ferencd@0:                 return "null literal";
ferencd@0:             case token_type::value_string:
ferencd@0:                 return "string literal";
ferencd@0:             case lexer::token_type::value_unsigned:
ferencd@0:             case lexer::token_type::value_integer:
ferencd@0:             case lexer::token_type::value_float:
ferencd@0:                 return "number literal";
ferencd@0:             case token_type::begin_array:
ferencd@0:                 return "'['";
ferencd@0:             case token_type::begin_object:
ferencd@0:                 return "'{'";
ferencd@0:             case token_type::end_array:
ferencd@0:                 return "']'";
ferencd@0:             case token_type::end_object:
ferencd@0:                 return "'}'";
ferencd@0:             case token_type::name_separator:
ferencd@0:                 return "':'";
ferencd@0:             case token_type::value_separator:
ferencd@0:                 return "','";
ferencd@0:             case token_type::parse_error:
ferencd@0:                 return "<parse error>";
ferencd@0:             case token_type::end_of_input:
ferencd@0:                 return "end of input";
ferencd@0:             case token_type::literal_or_value:
ferencd@0:                 return "'[', '{', or a literal";
ferencd@0:             // LCOV_EXCL_START
ferencd@0:             default: // catch non-enum values
ferencd@0:                 return "unknown token";
ferencd@0:                 // LCOV_EXCL_STOP
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     explicit lexer(detail::input_adapter_t&& adapter)
ferencd@0:         : ia(std::move(adapter)), decimal_point_char(get_decimal_point()) {}
ferencd@0: 
ferencd@0:     // delete because of pointer members
ferencd@0:     lexer(const lexer&) = delete;
ferencd@0:     lexer(lexer&&) = delete;
ferencd@0:     lexer& operator=(lexer&) = delete;
ferencd@0:     lexer& operator=(lexer&&) = delete;
ferencd@0:     ~lexer() = default;
ferencd@0: 
ferencd@0:   private:
ferencd@0:     /////////////////////
ferencd@0:     // locales
ferencd@0:     /////////////////////
ferencd@0: 
ferencd@0:     /// return the locale-dependent decimal point
ferencd@0:     JSON_HEDLEY_PURE
ferencd@0:     static char get_decimal_point() noexcept
ferencd@0:     {
ferencd@0:         const auto loc = localeconv();
ferencd@0:         assert(loc != nullptr);
ferencd@0:         return (loc->decimal_point == nullptr) ? '.' : *(loc->decimal_point);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /////////////////////
ferencd@0:     // scan functions
ferencd@0:     /////////////////////
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief get codepoint from 4 hex characters following `\u`
ferencd@0: 
ferencd@0:     For input "\u c1 c2 c3 c4" the codepoint is:
ferencd@0:       (c1 * 0x1000) + (c2 * 0x0100) + (c3 * 0x0010) + c4
ferencd@0:     = (c1 << 12) + (c2 << 8) + (c3 << 4) + (c4 << 0)
ferencd@0: 
ferencd@0:     Furthermore, the possible characters '0'..'9', 'A'..'F', and 'a'..'f'
ferencd@0:     must be converted to the integers 0x0..0x9, 0xA..0xF, 0xA..0xF, resp. The
ferencd@0:     conversion is done by subtracting the offset (0x30, 0x37, and 0x57)
ferencd@0:     between the ASCII value of the character and the desired integer value.
ferencd@0: 
ferencd@0:     @return codepoint (0x0000..0xFFFF) or -1 in case of an error (e.g. EOF or
ferencd@0:             non-hex character)
ferencd@0:     */
ferencd@0:     int get_codepoint()
ferencd@0:     {
ferencd@0:         // this function only makes sense after reading `\u`
ferencd@0:         assert(current == 'u');
ferencd@0:         int codepoint = 0;
ferencd@0: 
ferencd@0:         const auto factors = { 12u, 8u, 4u, 0u };
ferencd@0:         for (const auto factor : factors)
ferencd@0:         {
ferencd@0:             get();
ferencd@0: 
ferencd@0:             if (current >= '0' and current <= '9')
ferencd@0:             {
ferencd@0:                 codepoint += static_cast<int>((static_cast<unsigned int>(current) - 0x30u) << factor);
ferencd@0:             }
ferencd@0:             else if (current >= 'A' and current <= 'F')
ferencd@0:             {
ferencd@0:                 codepoint += static_cast<int>((static_cast<unsigned int>(current) - 0x37u) << factor);
ferencd@0:             }
ferencd@0:             else if (current >= 'a' and current <= 'f')
ferencd@0:             {
ferencd@0:                 codepoint += static_cast<int>((static_cast<unsigned int>(current) - 0x57u) << factor);
ferencd@0:             }
ferencd@0:             else
ferencd@0:             {
ferencd@0:                 return -1;
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         assert(0x0000 <= codepoint and codepoint <= 0xFFFF);
ferencd@0:         return codepoint;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief check if the next byte(s) are inside a given range
ferencd@0: 
ferencd@0:     Adds the current byte and, for each passed range, reads a new byte and
ferencd@0:     checks if it is inside the range. If a violation was detected, set up an
ferencd@0:     error message and return false. Otherwise, return true.
ferencd@0: 
ferencd@0:     @param[in] ranges  list of integers; interpreted as list of pairs of
ferencd@0:                        inclusive lower and upper bound, respectively
ferencd@0: 
ferencd@0:     @pre The passed list @a ranges must have 2, 4, or 6 elements; that is,
ferencd@0:          1, 2, or 3 pairs. This precondition is enforced by an assertion.
ferencd@0: 
ferencd@0:     @return true if and only if no range violation was detected
ferencd@0:     */
ferencd@0:     bool next_byte_in_range(std::initializer_list<int> ranges)
ferencd@0:     {
ferencd@0:         assert(ranges.size() == 2 or ranges.size() == 4 or ranges.size() == 6);
ferencd@0:         add(current);
ferencd@0: 
ferencd@0:         for (auto range = ranges.begin(); range != ranges.end(); ++range)
ferencd@0:         {
ferencd@0:             get();
ferencd@0:             if (JSON_HEDLEY_LIKELY(*range <= current and current <= *(++range)))
ferencd@0:             {
ferencd@0:                 add(current);
ferencd@0:             }
ferencd@0:             else
ferencd@0:             {
ferencd@0:                 error_message = "invalid string: ill-formed UTF-8 byte";
ferencd@0:                 return false;
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief scan a string literal
ferencd@0: 
ferencd@0:     This function scans a string according to Sect. 7 of RFC 7159. While
ferencd@0:     scanning, bytes are escaped and copied into buffer token_buffer. Then the
ferencd@0:     function returns successfully, token_buffer is *not* null-terminated (as it
ferencd@0:     may contain \0 bytes), and token_buffer.size() is the number of bytes in the
ferencd@0:     string.
ferencd@0: 
ferencd@0:     @return token_type::value_string if string could be successfully scanned,
ferencd@0:             token_type::parse_error otherwise
ferencd@0: 
ferencd@0:     @note In case of errors, variable error_message contains a textual
ferencd@0:           description.
ferencd@0:     */
ferencd@0:     token_type scan_string()
ferencd@0:     {
ferencd@0:         // reset token_buffer (ignore opening quote)
ferencd@0:         reset();
ferencd@0: 
ferencd@0:         // we entered the function by reading an open quote
ferencd@0:         assert(current == '\"');
ferencd@0: 
ferencd@0:         while (true)
ferencd@0:         {
ferencd@0:             // get next character
ferencd@0:             switch (get())
ferencd@0:             {
ferencd@0:                 // end of file while parsing string
ferencd@0:                 case std::char_traits<char>::eof():
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: missing closing quote";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // closing quote
ferencd@0:                 case '\"':
ferencd@0:                 {
ferencd@0:                     return token_type::value_string;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // escapes
ferencd@0:                 case '\\':
ferencd@0:                 {
ferencd@0:                     switch (get())
ferencd@0:                     {
ferencd@0:                         // quotation mark
ferencd@0:                         case '\"':
ferencd@0:                             add('\"');
ferencd@0:                             break;
ferencd@0:                         // reverse solidus
ferencd@0:                         case '\\':
ferencd@0:                             add('\\');
ferencd@0:                             break;
ferencd@0:                         // solidus
ferencd@0:                         case '/':
ferencd@0:                             add('/');
ferencd@0:                             break;
ferencd@0:                         // backspace
ferencd@0:                         case 'b':
ferencd@0:                             add('\b');
ferencd@0:                             break;
ferencd@0:                         // form feed
ferencd@0:                         case 'f':
ferencd@0:                             add('\f');
ferencd@0:                             break;
ferencd@0:                         // line feed
ferencd@0:                         case 'n':
ferencd@0:                             add('\n');
ferencd@0:                             break;
ferencd@0:                         // carriage return
ferencd@0:                         case 'r':
ferencd@0:                             add('\r');
ferencd@0:                             break;
ferencd@0:                         // tab
ferencd@0:                         case 't':
ferencd@0:                             add('\t');
ferencd@0:                             break;
ferencd@0: 
ferencd@0:                         // unicode escapes
ferencd@0:                         case 'u':
ferencd@0:                         {
ferencd@0:                             const int codepoint1 = get_codepoint();
ferencd@0:                             int codepoint = codepoint1; // start with codepoint1
ferencd@0: 
ferencd@0:                             if (JSON_HEDLEY_UNLIKELY(codepoint1 == -1))
ferencd@0:                             {
ferencd@0:                                 error_message = "invalid string: '\\u' must be followed by 4 hex digits";
ferencd@0:                                 return token_type::parse_error;
ferencd@0:                             }
ferencd@0: 
ferencd@0:                             // check if code point is a high surrogate
ferencd@0:                             if (0xD800 <= codepoint1 and codepoint1 <= 0xDBFF)
ferencd@0:                             {
ferencd@0:                                 // expect next \uxxxx entry
ferencd@0:                                 if (JSON_HEDLEY_LIKELY(get() == '\\' and get() == 'u'))
ferencd@0:                                 {
ferencd@0:                                     const int codepoint2 = get_codepoint();
ferencd@0: 
ferencd@0:                                     if (JSON_HEDLEY_UNLIKELY(codepoint2 == -1))
ferencd@0:                                     {
ferencd@0:                                         error_message = "invalid string: '\\u' must be followed by 4 hex digits";
ferencd@0:                                         return token_type::parse_error;
ferencd@0:                                     }
ferencd@0: 
ferencd@0:                                     // check if codepoint2 is a low surrogate
ferencd@0:                                     if (JSON_HEDLEY_LIKELY(0xDC00 <= codepoint2 and codepoint2 <= 0xDFFF))
ferencd@0:                                     {
ferencd@0:                                         // overwrite codepoint
ferencd@0:                                         codepoint = static_cast<int>(
ferencd@0:                                                         // high surrogate occupies the most significant 22 bits
ferencd@0:                                                         (static_cast<unsigned int>(codepoint1) << 10u)
ferencd@0:                                                         // low surrogate occupies the least significant 15 bits
ferencd@0:                                                         + static_cast<unsigned int>(codepoint2)
ferencd@0:                                                         // there is still the 0xD800, 0xDC00 and 0x10000 noise
ferencd@0:                                                         // in the result so we have to subtract with:
ferencd@0:                                                         // (0xD800 << 10) + DC00 - 0x10000 = 0x35FDC00
ferencd@0:                                                         - 0x35FDC00u);
ferencd@0:                                     }
ferencd@0:                                     else
ferencd@0:                                     {
ferencd@0:                                         error_message = "invalid string: surrogate U+DC00..U+DFFF must be followed by U+DC00..U+DFFF";
ferencd@0:                                         return token_type::parse_error;
ferencd@0:                                     }
ferencd@0:                                 }
ferencd@0:                                 else
ferencd@0:                                 {
ferencd@0:                                     error_message = "invalid string: surrogate U+DC00..U+DFFF must be followed by U+DC00..U+DFFF";
ferencd@0:                                     return token_type::parse_error;
ferencd@0:                                 }
ferencd@0:                             }
ferencd@0:                             else
ferencd@0:                             {
ferencd@0:                                 if (JSON_HEDLEY_UNLIKELY(0xDC00 <= codepoint1 and codepoint1 <= 0xDFFF))
ferencd@0:                                 {
ferencd@0:                                     error_message = "invalid string: surrogate U+DC00..U+DFFF must follow U+D800..U+DBFF";
ferencd@0:                                     return token_type::parse_error;
ferencd@0:                                 }
ferencd@0:                             }
ferencd@0: 
ferencd@0:                             // result of the above calculation yields a proper codepoint
ferencd@0:                             assert(0x00 <= codepoint and codepoint <= 0x10FFFF);
ferencd@0: 
ferencd@0:                             // translate codepoint into bytes
ferencd@0:                             if (codepoint < 0x80)
ferencd@0:                             {
ferencd@0:                                 // 1-byte characters: 0xxxxxxx (ASCII)
ferencd@0:                                 add(codepoint);
ferencd@0:                             }
ferencd@0:                             else if (codepoint <= 0x7FF)
ferencd@0:                             {
ferencd@0:                                 // 2-byte characters: 110xxxxx 10xxxxxx
ferencd@0:                                 add(static_cast<int>(0xC0u | (static_cast<unsigned int>(codepoint) >> 6u)));
ferencd@0:                                 add(static_cast<int>(0x80u | (static_cast<unsigned int>(codepoint) & 0x3Fu)));
ferencd@0:                             }
ferencd@0:                             else if (codepoint <= 0xFFFF)
ferencd@0:                             {
ferencd@0:                                 // 3-byte characters: 1110xxxx 10xxxxxx 10xxxxxx
ferencd@0:                                 add(static_cast<int>(0xE0u | (static_cast<unsigned int>(codepoint) >> 12u)));
ferencd@0:                                 add(static_cast<int>(0x80u | ((static_cast<unsigned int>(codepoint) >> 6u) & 0x3Fu)));
ferencd@0:                                 add(static_cast<int>(0x80u | (static_cast<unsigned int>(codepoint) & 0x3Fu)));
ferencd@0:                             }
ferencd@0:                             else
ferencd@0:                             {
ferencd@0:                                 // 4-byte characters: 11110xxx 10xxxxxx 10xxxxxx 10xxxxxx
ferencd@0:                                 add(static_cast<int>(0xF0u | (static_cast<unsigned int>(codepoint) >> 18u)));
ferencd@0:                                 add(static_cast<int>(0x80u | ((static_cast<unsigned int>(codepoint) >> 12u) & 0x3Fu)));
ferencd@0:                                 add(static_cast<int>(0x80u | ((static_cast<unsigned int>(codepoint) >> 6u) & 0x3Fu)));
ferencd@0:                                 add(static_cast<int>(0x80u | (static_cast<unsigned int>(codepoint) & 0x3Fu)));
ferencd@0:                             }
ferencd@0: 
ferencd@0:                             break;
ferencd@0:                         }
ferencd@0: 
ferencd@0:                         // other characters after escape
ferencd@0:                         default:
ferencd@0:                             error_message = "invalid string: forbidden character after backslash";
ferencd@0:                             return token_type::parse_error;
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // invalid control characters
ferencd@0:                 case 0x00:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+0000 (NUL) must be escaped to \\u0000";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x01:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+0001 (SOH) must be escaped to \\u0001";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x02:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+0002 (STX) must be escaped to \\u0002";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x03:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+0003 (ETX) must be escaped to \\u0003";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x04:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+0004 (EOT) must be escaped to \\u0004";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x05:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+0005 (ENQ) must be escaped to \\u0005";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x06:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+0006 (ACK) must be escaped to \\u0006";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x07:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+0007 (BEL) must be escaped to \\u0007";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x08:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+0008 (BS) must be escaped to \\u0008 or \\b";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x09:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+0009 (HT) must be escaped to \\u0009 or \\t";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x0A:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+000A (LF) must be escaped to \\u000A or \\n";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x0B:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+000B (VT) must be escaped to \\u000B";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x0C:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+000C (FF) must be escaped to \\u000C or \\f";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x0D:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+000D (CR) must be escaped to \\u000D or \\r";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x0E:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+000E (SO) must be escaped to \\u000E";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x0F:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+000F (SI) must be escaped to \\u000F";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x10:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+0010 (DLE) must be escaped to \\u0010";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x11:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+0011 (DC1) must be escaped to \\u0011";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x12:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+0012 (DC2) must be escaped to \\u0012";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x13:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+0013 (DC3) must be escaped to \\u0013";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x14:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+0014 (DC4) must be escaped to \\u0014";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x15:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+0015 (NAK) must be escaped to \\u0015";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x16:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+0016 (SYN) must be escaped to \\u0016";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x17:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+0017 (ETB) must be escaped to \\u0017";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x18:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+0018 (CAN) must be escaped to \\u0018";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x19:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+0019 (EM) must be escaped to \\u0019";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x1A:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+001A (SUB) must be escaped to \\u001A";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x1B:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+001B (ESC) must be escaped to \\u001B";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x1C:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+001C (FS) must be escaped to \\u001C";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x1D:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+001D (GS) must be escaped to \\u001D";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x1E:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+001E (RS) must be escaped to \\u001E";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case 0x1F:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: control character U+001F (US) must be escaped to \\u001F";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // U+0020..U+007F (except U+0022 (quote) and U+005C (backspace))
ferencd@0:                 case 0x20:
ferencd@0:                 case 0x21:
ferencd@0:                 case 0x23:
ferencd@0:                 case 0x24:
ferencd@0:                 case 0x25:
ferencd@0:                 case 0x26:
ferencd@0:                 case 0x27:
ferencd@0:                 case 0x28:
ferencd@0:                 case 0x29:
ferencd@0:                 case 0x2A:
ferencd@0:                 case 0x2B:
ferencd@0:                 case 0x2C:
ferencd@0:                 case 0x2D:
ferencd@0:                 case 0x2E:
ferencd@0:                 case 0x2F:
ferencd@0:                 case 0x30:
ferencd@0:                 case 0x31:
ferencd@0:                 case 0x32:
ferencd@0:                 case 0x33:
ferencd@0:                 case 0x34:
ferencd@0:                 case 0x35:
ferencd@0:                 case 0x36:
ferencd@0:                 case 0x37:
ferencd@0:                 case 0x38:
ferencd@0:                 case 0x39:
ferencd@0:                 case 0x3A:
ferencd@0:                 case 0x3B:
ferencd@0:                 case 0x3C:
ferencd@0:                 case 0x3D:
ferencd@0:                 case 0x3E:
ferencd@0:                 case 0x3F:
ferencd@0:                 case 0x40:
ferencd@0:                 case 0x41:
ferencd@0:                 case 0x42:
ferencd@0:                 case 0x43:
ferencd@0:                 case 0x44:
ferencd@0:                 case 0x45:
ferencd@0:                 case 0x46:
ferencd@0:                 case 0x47:
ferencd@0:                 case 0x48:
ferencd@0:                 case 0x49:
ferencd@0:                 case 0x4A:
ferencd@0:                 case 0x4B:
ferencd@0:                 case 0x4C:
ferencd@0:                 case 0x4D:
ferencd@0:                 case 0x4E:
ferencd@0:                 case 0x4F:
ferencd@0:                 case 0x50:
ferencd@0:                 case 0x51:
ferencd@0:                 case 0x52:
ferencd@0:                 case 0x53:
ferencd@0:                 case 0x54:
ferencd@0:                 case 0x55:
ferencd@0:                 case 0x56:
ferencd@0:                 case 0x57:
ferencd@0:                 case 0x58:
ferencd@0:                 case 0x59:
ferencd@0:                 case 0x5A:
ferencd@0:                 case 0x5B:
ferencd@0:                 case 0x5D:
ferencd@0:                 case 0x5E:
ferencd@0:                 case 0x5F:
ferencd@0:                 case 0x60:
ferencd@0:                 case 0x61:
ferencd@0:                 case 0x62:
ferencd@0:                 case 0x63:
ferencd@0:                 case 0x64:
ferencd@0:                 case 0x65:
ferencd@0:                 case 0x66:
ferencd@0:                 case 0x67:
ferencd@0:                 case 0x68:
ferencd@0:                 case 0x69:
ferencd@0:                 case 0x6A:
ferencd@0:                 case 0x6B:
ferencd@0:                 case 0x6C:
ferencd@0:                 case 0x6D:
ferencd@0:                 case 0x6E:
ferencd@0:                 case 0x6F:
ferencd@0:                 case 0x70:
ferencd@0:                 case 0x71:
ferencd@0:                 case 0x72:
ferencd@0:                 case 0x73:
ferencd@0:                 case 0x74:
ferencd@0:                 case 0x75:
ferencd@0:                 case 0x76:
ferencd@0:                 case 0x77:
ferencd@0:                 case 0x78:
ferencd@0:                 case 0x79:
ferencd@0:                 case 0x7A:
ferencd@0:                 case 0x7B:
ferencd@0:                 case 0x7C:
ferencd@0:                 case 0x7D:
ferencd@0:                 case 0x7E:
ferencd@0:                 case 0x7F:
ferencd@0:                 {
ferencd@0:                     add(current);
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // U+0080..U+07FF: bytes C2..DF 80..BF
ferencd@0:                 case 0xC2:
ferencd@0:                 case 0xC3:
ferencd@0:                 case 0xC4:
ferencd@0:                 case 0xC5:
ferencd@0:                 case 0xC6:
ferencd@0:                 case 0xC7:
ferencd@0:                 case 0xC8:
ferencd@0:                 case 0xC9:
ferencd@0:                 case 0xCA:
ferencd@0:                 case 0xCB:
ferencd@0:                 case 0xCC:
ferencd@0:                 case 0xCD:
ferencd@0:                 case 0xCE:
ferencd@0:                 case 0xCF:
ferencd@0:                 case 0xD0:
ferencd@0:                 case 0xD1:
ferencd@0:                 case 0xD2:
ferencd@0:                 case 0xD3:
ferencd@0:                 case 0xD4:
ferencd@0:                 case 0xD5:
ferencd@0:                 case 0xD6:
ferencd@0:                 case 0xD7:
ferencd@0:                 case 0xD8:
ferencd@0:                 case 0xD9:
ferencd@0:                 case 0xDA:
ferencd@0:                 case 0xDB:
ferencd@0:                 case 0xDC:
ferencd@0:                 case 0xDD:
ferencd@0:                 case 0xDE:
ferencd@0:                 case 0xDF:
ferencd@0:                 {
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(not next_byte_in_range({0x80, 0xBF})))
ferencd@0:                     {
ferencd@0:                         return token_type::parse_error;
ferencd@0:                     }
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // U+0800..U+0FFF: bytes E0 A0..BF 80..BF
ferencd@0:                 case 0xE0:
ferencd@0:                 {
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(not (next_byte_in_range({0xA0, 0xBF, 0x80, 0xBF}))))
ferencd@0:                     {
ferencd@0:                         return token_type::parse_error;
ferencd@0:                     }
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // U+1000..U+CFFF: bytes E1..EC 80..BF 80..BF
ferencd@0:                 // U+E000..U+FFFF: bytes EE..EF 80..BF 80..BF
ferencd@0:                 case 0xE1:
ferencd@0:                 case 0xE2:
ferencd@0:                 case 0xE3:
ferencd@0:                 case 0xE4:
ferencd@0:                 case 0xE5:
ferencd@0:                 case 0xE6:
ferencd@0:                 case 0xE7:
ferencd@0:                 case 0xE8:
ferencd@0:                 case 0xE9:
ferencd@0:                 case 0xEA:
ferencd@0:                 case 0xEB:
ferencd@0:                 case 0xEC:
ferencd@0:                 case 0xEE:
ferencd@0:                 case 0xEF:
ferencd@0:                 {
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(not (next_byte_in_range({0x80, 0xBF, 0x80, 0xBF}))))
ferencd@0:                     {
ferencd@0:                         return token_type::parse_error;
ferencd@0:                     }
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // U+D000..U+D7FF: bytes ED 80..9F 80..BF
ferencd@0:                 case 0xED:
ferencd@0:                 {
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(not (next_byte_in_range({0x80, 0x9F, 0x80, 0xBF}))))
ferencd@0:                     {
ferencd@0:                         return token_type::parse_error;
ferencd@0:                     }
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // U+10000..U+3FFFF F0 90..BF 80..BF 80..BF
ferencd@0:                 case 0xF0:
ferencd@0:                 {
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(not (next_byte_in_range({0x90, 0xBF, 0x80, 0xBF, 0x80, 0xBF}))))
ferencd@0:                     {
ferencd@0:                         return token_type::parse_error;
ferencd@0:                     }
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // U+40000..U+FFFFF F1..F3 80..BF 80..BF 80..BF
ferencd@0:                 case 0xF1:
ferencd@0:                 case 0xF2:
ferencd@0:                 case 0xF3:
ferencd@0:                 {
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(not (next_byte_in_range({0x80, 0xBF, 0x80, 0xBF, 0x80, 0xBF}))))
ferencd@0:                     {
ferencd@0:                         return token_type::parse_error;
ferencd@0:                     }
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // U+100000..U+10FFFF F4 80..8F 80..BF 80..BF
ferencd@0:                 case 0xF4:
ferencd@0:                 {
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(not (next_byte_in_range({0x80, 0x8F, 0x80, 0xBF, 0x80, 0xBF}))))
ferencd@0:                     {
ferencd@0:                         return token_type::parse_error;
ferencd@0:                     }
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // remaining bytes (80..C1 and F5..FF) are ill-formed
ferencd@0:                 default:
ferencd@0:                 {
ferencd@0:                     error_message = "invalid string: ill-formed UTF-8 byte";
ferencd@0:                     return token_type::parse_error;
ferencd@0:                 }
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     JSON_HEDLEY_NON_NULL(2)
ferencd@0:     static void strtof(float& f, const char* str, char** endptr) noexcept
ferencd@0:     {
ferencd@0:         f = std::strtof(str, endptr);
ferencd@0:     }
ferencd@0: 
ferencd@0:     JSON_HEDLEY_NON_NULL(2)
ferencd@0:     static void strtof(double& f, const char* str, char** endptr) noexcept
ferencd@0:     {
ferencd@0:         f = std::strtod(str, endptr);
ferencd@0:     }
ferencd@0: 
ferencd@0:     JSON_HEDLEY_NON_NULL(2)
ferencd@0:     static void strtof(long double& f, const char* str, char** endptr) noexcept
ferencd@0:     {
ferencd@0:         f = std::strtold(str, endptr);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief scan a number literal
ferencd@0: 
ferencd@0:     This function scans a string according to Sect. 6 of RFC 7159.
ferencd@0: 
ferencd@0:     The function is realized with a deterministic finite state machine derived
ferencd@0:     from the grammar described in RFC 7159. Starting in state "init", the
ferencd@0:     input is read and used to determined the next state. Only state "done"
ferencd@0:     accepts the number. State "error" is a trap state to model errors. In the
ferencd@0:     table below, "anything" means any character but the ones listed before.
ferencd@0: 
ferencd@0:     state    | 0        | 1-9      | e E      | +       | -       | .        | anything
ferencd@0:     ---------|----------|----------|----------|---------|---------|----------|-----------
ferencd@0:     init     | zero     | any1     | [error]  | [error] | minus   | [error]  | [error]
ferencd@0:     minus    | zero     | any1     | [error]  | [error] | [error] | [error]  | [error]
ferencd@0:     zero     | done     | done     | exponent | done    | done    | decimal1 | done
ferencd@0:     any1     | any1     | any1     | exponent | done    | done    | decimal1 | done
ferencd@0:     decimal1 | decimal2 | [error]  | [error]  | [error] | [error] | [error]  | [error]
ferencd@0:     decimal2 | decimal2 | decimal2 | exponent | done    | done    | done     | done
ferencd@0:     exponent | any2     | any2     | [error]  | sign    | sign    | [error]  | [error]
ferencd@0:     sign     | any2     | any2     | [error]  | [error] | [error] | [error]  | [error]
ferencd@0:     any2     | any2     | any2     | done     | done    | done    | done     | done
ferencd@0: 
ferencd@0:     The state machine is realized with one label per state (prefixed with
ferencd@0:     "scan_number_") and `goto` statements between them. The state machine
ferencd@0:     contains cycles, but any cycle can be left when EOF is read. Therefore,
ferencd@0:     the function is guaranteed to terminate.
ferencd@0: 
ferencd@0:     During scanning, the read bytes are stored in token_buffer. This string is
ferencd@0:     then converted to a signed integer, an unsigned integer, or a
ferencd@0:     floating-point number.
ferencd@0: 
ferencd@0:     @return token_type::value_unsigned, token_type::value_integer, or
ferencd@0:             token_type::value_float if number could be successfully scanned,
ferencd@0:             token_type::parse_error otherwise
ferencd@0: 
ferencd@0:     @note The scanner is independent of the current locale. Internally, the
ferencd@0:           locale's decimal point is used instead of `.` to work with the
ferencd@0:           locale-dependent converters.
ferencd@0:     */
ferencd@0:     token_type scan_number()  // lgtm [cpp/use-of-goto]
ferencd@0:     {
ferencd@0:         // reset token_buffer to store the number's bytes
ferencd@0:         reset();
ferencd@0: 
ferencd@0:         // the type of the parsed number; initially set to unsigned; will be
ferencd@0:         // changed if minus sign, decimal point or exponent is read
ferencd@0:         token_type number_type = token_type::value_unsigned;
ferencd@0: 
ferencd@0:         // state (init): we just found out we need to scan a number
ferencd@0:         switch (current)
ferencd@0:         {
ferencd@0:             case '-':
ferencd@0:             {
ferencd@0:                 add(current);
ferencd@0:                 goto scan_number_minus;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case '0':
ferencd@0:             {
ferencd@0:                 add(current);
ferencd@0:                 goto scan_number_zero;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case '1':
ferencd@0:             case '2':
ferencd@0:             case '3':
ferencd@0:             case '4':
ferencd@0:             case '5':
ferencd@0:             case '6':
ferencd@0:             case '7':
ferencd@0:             case '8':
ferencd@0:             case '9':
ferencd@0:             {
ferencd@0:                 add(current);
ferencd@0:                 goto scan_number_any1;
ferencd@0:             }
ferencd@0: 
ferencd@0:             // all other characters are rejected outside scan_number()
ferencd@0:             default:            // LCOV_EXCL_LINE
ferencd@0:                 assert(false);  // LCOV_EXCL_LINE
ferencd@0:         }
ferencd@0: 
ferencd@0: scan_number_minus:
ferencd@0:         // state: we just parsed a leading minus sign
ferencd@0:         number_type = token_type::value_integer;
ferencd@0:         switch (get())
ferencd@0:         {
ferencd@0:             case '0':
ferencd@0:             {
ferencd@0:                 add(current);
ferencd@0:                 goto scan_number_zero;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case '1':
ferencd@0:             case '2':
ferencd@0:             case '3':
ferencd@0:             case '4':
ferencd@0:             case '5':
ferencd@0:             case '6':
ferencd@0:             case '7':
ferencd@0:             case '8':
ferencd@0:             case '9':
ferencd@0:             {
ferencd@0:                 add(current);
ferencd@0:                 goto scan_number_any1;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 error_message = "invalid number; expected digit after '-'";
ferencd@0:                 return token_type::parse_error;
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0: scan_number_zero:
ferencd@0:         // state: we just parse a zero (maybe with a leading minus sign)
ferencd@0:         switch (get())
ferencd@0:         {
ferencd@0:             case '.':
ferencd@0:             {
ferencd@0:                 add(decimal_point_char);
ferencd@0:                 goto scan_number_decimal1;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 'e':
ferencd@0:             case 'E':
ferencd@0:             {
ferencd@0:                 add(current);
ferencd@0:                 goto scan_number_exponent;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:                 goto scan_number_done;
ferencd@0:         }
ferencd@0: 
ferencd@0: scan_number_any1:
ferencd@0:         // state: we just parsed a number 0-9 (maybe with a leading minus sign)
ferencd@0:         switch (get())
ferencd@0:         {
ferencd@0:             case '0':
ferencd@0:             case '1':
ferencd@0:             case '2':
ferencd@0:             case '3':
ferencd@0:             case '4':
ferencd@0:             case '5':
ferencd@0:             case '6':
ferencd@0:             case '7':
ferencd@0:             case '8':
ferencd@0:             case '9':
ferencd@0:             {
ferencd@0:                 add(current);
ferencd@0:                 goto scan_number_any1;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case '.':
ferencd@0:             {
ferencd@0:                 add(decimal_point_char);
ferencd@0:                 goto scan_number_decimal1;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 'e':
ferencd@0:             case 'E':
ferencd@0:             {
ferencd@0:                 add(current);
ferencd@0:                 goto scan_number_exponent;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:                 goto scan_number_done;
ferencd@0:         }
ferencd@0: 
ferencd@0: scan_number_decimal1:
ferencd@0:         // state: we just parsed a decimal point
ferencd@0:         number_type = token_type::value_float;
ferencd@0:         switch (get())
ferencd@0:         {
ferencd@0:             case '0':
ferencd@0:             case '1':
ferencd@0:             case '2':
ferencd@0:             case '3':
ferencd@0:             case '4':
ferencd@0:             case '5':
ferencd@0:             case '6':
ferencd@0:             case '7':
ferencd@0:             case '8':
ferencd@0:             case '9':
ferencd@0:             {
ferencd@0:                 add(current);
ferencd@0:                 goto scan_number_decimal2;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 error_message = "invalid number; expected digit after '.'";
ferencd@0:                 return token_type::parse_error;
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0: scan_number_decimal2:
ferencd@0:         // we just parsed at least one number after a decimal point
ferencd@0:         switch (get())
ferencd@0:         {
ferencd@0:             case '0':
ferencd@0:             case '1':
ferencd@0:             case '2':
ferencd@0:             case '3':
ferencd@0:             case '4':
ferencd@0:             case '5':
ferencd@0:             case '6':
ferencd@0:             case '7':
ferencd@0:             case '8':
ferencd@0:             case '9':
ferencd@0:             {
ferencd@0:                 add(current);
ferencd@0:                 goto scan_number_decimal2;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case 'e':
ferencd@0:             case 'E':
ferencd@0:             {
ferencd@0:                 add(current);
ferencd@0:                 goto scan_number_exponent;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:                 goto scan_number_done;
ferencd@0:         }
ferencd@0: 
ferencd@0: scan_number_exponent:
ferencd@0:         // we just parsed an exponent
ferencd@0:         number_type = token_type::value_float;
ferencd@0:         switch (get())
ferencd@0:         {
ferencd@0:             case '+':
ferencd@0:             case '-':
ferencd@0:             {
ferencd@0:                 add(current);
ferencd@0:                 goto scan_number_sign;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case '0':
ferencd@0:             case '1':
ferencd@0:             case '2':
ferencd@0:             case '3':
ferencd@0:             case '4':
ferencd@0:             case '5':
ferencd@0:             case '6':
ferencd@0:             case '7':
ferencd@0:             case '8':
ferencd@0:             case '9':
ferencd@0:             {
ferencd@0:                 add(current);
ferencd@0:                 goto scan_number_any2;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 error_message =
ferencd@0:                     "invalid number; expected '+', '-', or digit after exponent";
ferencd@0:                 return token_type::parse_error;
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0: scan_number_sign:
ferencd@0:         // we just parsed an exponent sign
ferencd@0:         switch (get())
ferencd@0:         {
ferencd@0:             case '0':
ferencd@0:             case '1':
ferencd@0:             case '2':
ferencd@0:             case '3':
ferencd@0:             case '4':
ferencd@0:             case '5':
ferencd@0:             case '6':
ferencd@0:             case '7':
ferencd@0:             case '8':
ferencd@0:             case '9':
ferencd@0:             {
ferencd@0:                 add(current);
ferencd@0:                 goto scan_number_any2;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 error_message = "invalid number; expected digit after exponent sign";
ferencd@0:                 return token_type::parse_error;
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0: scan_number_any2:
ferencd@0:         // we just parsed a number after the exponent or exponent sign
ferencd@0:         switch (get())
ferencd@0:         {
ferencd@0:             case '0':
ferencd@0:             case '1':
ferencd@0:             case '2':
ferencd@0:             case '3':
ferencd@0:             case '4':
ferencd@0:             case '5':
ferencd@0:             case '6':
ferencd@0:             case '7':
ferencd@0:             case '8':
ferencd@0:             case '9':
ferencd@0:             {
ferencd@0:                 add(current);
ferencd@0:                 goto scan_number_any2;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:                 goto scan_number_done;
ferencd@0:         }
ferencd@0: 
ferencd@0: scan_number_done:
ferencd@0:         // unget the character after the number (we only read it to know that
ferencd@0:         // we are done scanning a number)
ferencd@0:         unget();
ferencd@0: 
ferencd@0:         char* endptr = nullptr;
ferencd@0:         errno = 0;
ferencd@0: 
ferencd@0:         // try to parse integers first and fall back to floats
ferencd@0:         if (number_type == token_type::value_unsigned)
ferencd@0:         {
ferencd@0:             const auto x = std::strtoull(token_buffer.data(), &endptr, 10);
ferencd@0: 
ferencd@0:             // we checked the number format before
ferencd@0:             assert(endptr == token_buffer.data() + token_buffer.size());
ferencd@0: 
ferencd@0:             if (errno == 0)
ferencd@0:             {
ferencd@0:                 value_unsigned = static_cast<number_unsigned_t>(x);
ferencd@0:                 if (value_unsigned == x)
ferencd@0:                 {
ferencd@0:                     return token_type::value_unsigned;
ferencd@0:                 }
ferencd@0:             }
ferencd@0:         }
ferencd@0:         else if (number_type == token_type::value_integer)
ferencd@0:         {
ferencd@0:             const auto x = std::strtoll(token_buffer.data(), &endptr, 10);
ferencd@0: 
ferencd@0:             // we checked the number format before
ferencd@0:             assert(endptr == token_buffer.data() + token_buffer.size());
ferencd@0: 
ferencd@0:             if (errno == 0)
ferencd@0:             {
ferencd@0:                 value_integer = static_cast<number_integer_t>(x);
ferencd@0:                 if (value_integer == x)
ferencd@0:                 {
ferencd@0:                     return token_type::value_integer;
ferencd@0:                 }
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         // this code is reached if we parse a floating-point number or if an
ferencd@0:         // integer conversion above failed
ferencd@0:         strtof(value_float, token_buffer.data(), &endptr);
ferencd@0: 
ferencd@0:         // we checked the number format before
ferencd@0:         assert(endptr == token_buffer.data() + token_buffer.size());
ferencd@0: 
ferencd@0:         return token_type::value_float;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @param[in] literal_text  the literal text to expect
ferencd@0:     @param[in] length        the length of the passed literal text
ferencd@0:     @param[in] return_type   the token type to return on success
ferencd@0:     */
ferencd@0:     JSON_HEDLEY_NON_NULL(2)
ferencd@0:     token_type scan_literal(const char* literal_text, const std::size_t length,
ferencd@0:                             token_type return_type)
ferencd@0:     {
ferencd@0:         assert(current == literal_text[0]);
ferencd@0:         for (std::size_t i = 1; i < length; ++i)
ferencd@0:         {
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(get() != literal_text[i]))
ferencd@0:             {
ferencd@0:                 error_message = "invalid literal";
ferencd@0:                 return token_type::parse_error;
ferencd@0:             }
ferencd@0:         }
ferencd@0:         return return_type;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /////////////////////
ferencd@0:     // input management
ferencd@0:     /////////////////////
ferencd@0: 
ferencd@0:     /// reset token_buffer; current character is beginning of token
ferencd@0:     void reset() noexcept
ferencd@0:     {
ferencd@0:         token_buffer.clear();
ferencd@0:         token_string.clear();
ferencd@0:         token_string.push_back(std::char_traits<char>::to_char_type(current));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*
ferencd@0:     @brief get next character from the input
ferencd@0: 
ferencd@0:     This function provides the interface to the used input adapter. It does
ferencd@0:     not throw in case the input reached EOF, but returns a
ferencd@0:     `std::char_traits<char>::eof()` in that case.  Stores the scanned characters
ferencd@0:     for use in error messages.
ferencd@0: 
ferencd@0:     @return character read from the input
ferencd@0:     */
ferencd@0:     std::char_traits<char>::int_type get()
ferencd@0:     {
ferencd@0:         ++position.chars_read_total;
ferencd@0:         ++position.chars_read_current_line;
ferencd@0: 
ferencd@0:         if (next_unget)
ferencd@0:         {
ferencd@0:             // just reset the next_unget variable and work with current
ferencd@0:             next_unget = false;
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             current = ia->get_character();
ferencd@0:         }
ferencd@0: 
ferencd@0:         if (JSON_HEDLEY_LIKELY(current != std::char_traits<char>::eof()))
ferencd@0:         {
ferencd@0:             token_string.push_back(std::char_traits<char>::to_char_type(current));
ferencd@0:         }
ferencd@0: 
ferencd@0:         if (current == '\n')
ferencd@0:         {
ferencd@0:             ++position.lines_read;
ferencd@0:             position.chars_read_current_line = 0;
ferencd@0:         }
ferencd@0: 
ferencd@0:         return current;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief unget current character (read it again on next get)
ferencd@0: 
ferencd@0:     We implement unget by setting variable next_unget to true. The input is not
ferencd@0:     changed - we just simulate ungetting by modifying chars_read_total,
ferencd@0:     chars_read_current_line, and token_string. The next call to get() will
ferencd@0:     behave as if the unget character is read again.
ferencd@0:     */
ferencd@0:     void unget()
ferencd@0:     {
ferencd@0:         next_unget = true;
ferencd@0: 
ferencd@0:         --position.chars_read_total;
ferencd@0: 
ferencd@0:         // in case we "unget" a newline, we have to also decrement the lines_read
ferencd@0:         if (position.chars_read_current_line == 0)
ferencd@0:         {
ferencd@0:             if (position.lines_read > 0)
ferencd@0:             {
ferencd@0:                 --position.lines_read;
ferencd@0:             }
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             --position.chars_read_current_line;
ferencd@0:         }
ferencd@0: 
ferencd@0:         if (JSON_HEDLEY_LIKELY(current != std::char_traits<char>::eof()))
ferencd@0:         {
ferencd@0:             assert(not token_string.empty());
ferencd@0:             token_string.pop_back();
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// add a character to token_buffer
ferencd@0:     void add(int c)
ferencd@0:     {
ferencd@0:         token_buffer.push_back(std::char_traits<char>::to_char_type(c));
ferencd@0:     }
ferencd@0: 
ferencd@0:   public:
ferencd@0:     /////////////////////
ferencd@0:     // value getters
ferencd@0:     /////////////////////
ferencd@0: 
ferencd@0:     /// return integer value
ferencd@0:     constexpr number_integer_t get_number_integer() const noexcept
ferencd@0:     {
ferencd@0:         return value_integer;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// return unsigned integer value
ferencd@0:     constexpr number_unsigned_t get_number_unsigned() const noexcept
ferencd@0:     {
ferencd@0:         return value_unsigned;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// return floating-point value
ferencd@0:     constexpr number_float_t get_number_float() const noexcept
ferencd@0:     {
ferencd@0:         return value_float;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// return current string value (implicitly resets the token; useful only once)
ferencd@0:     string_t& get_string()
ferencd@0:     {
ferencd@0:         return token_buffer;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /////////////////////
ferencd@0:     // diagnostics
ferencd@0:     /////////////////////
ferencd@0: 
ferencd@0:     /// return position of last read token
ferencd@0:     constexpr position_t get_position() const noexcept
ferencd@0:     {
ferencd@0:         return position;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// return the last read token (for errors only).  Will never contain EOF
ferencd@0:     /// (an arbitrary value that is not a valid char value, often -1), because
ferencd@0:     /// 255 may legitimately occur.  May contain NUL, which should be escaped.
ferencd@0:     std::string get_token_string() const
ferencd@0:     {
ferencd@0:         // escape control characters
ferencd@0:         std::string result;
ferencd@0:         for (const auto c : token_string)
ferencd@0:         {
ferencd@0:             if ('\x00' <= c and c <= '\x1F')
ferencd@0:             {
ferencd@0:                 // escape control characters
ferencd@0:                 std::array<char, 9> cs{{}};
ferencd@0:                 (std::snprintf)(cs.data(), cs.size(), "<U+%.4X>", static_cast<unsigned char>(c));
ferencd@0:                 result += cs.data();
ferencd@0:             }
ferencd@0:             else
ferencd@0:             {
ferencd@0:                 // add character as is
ferencd@0:                 result.push_back(c);
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// return syntax error message
ferencd@0:     JSON_HEDLEY_RETURNS_NON_NULL
ferencd@0:     constexpr const char* get_error_message() const noexcept
ferencd@0:     {
ferencd@0:         return error_message;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /////////////////////
ferencd@0:     // actual scanner
ferencd@0:     /////////////////////
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief skip the UTF-8 byte order mark
ferencd@0:     @return true iff there is no BOM or the correct BOM has been skipped
ferencd@0:     */
ferencd@0:     bool skip_bom()
ferencd@0:     {
ferencd@0:         if (get() == 0xEF)
ferencd@0:         {
ferencd@0:             // check if we completely parse the BOM
ferencd@0:             return get() == 0xBB and get() == 0xBF;
ferencd@0:         }
ferencd@0: 
ferencd@0:         // the first character is not the beginning of the BOM; unget it to
ferencd@0:         // process is later
ferencd@0:         unget();
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     token_type scan()
ferencd@0:     {
ferencd@0:         // initially, skip the BOM
ferencd@0:         if (position.chars_read_total == 0 and not skip_bom())
ferencd@0:         {
ferencd@0:             error_message = "invalid BOM; must be 0xEF 0xBB 0xBF if given";
ferencd@0:             return token_type::parse_error;
ferencd@0:         }
ferencd@0: 
ferencd@0:         // read next character and ignore whitespace
ferencd@0:         do
ferencd@0:         {
ferencd@0:             get();
ferencd@0:         }
ferencd@0:         while (current == ' ' or current == '\t' or current == '\n' or current == '\r');
ferencd@0: 
ferencd@0:         switch (current)
ferencd@0:         {
ferencd@0:             // structural characters
ferencd@0:             case '[':
ferencd@0:                 return token_type::begin_array;
ferencd@0:             case ']':
ferencd@0:                 return token_type::end_array;
ferencd@0:             case '{':
ferencd@0:                 return token_type::begin_object;
ferencd@0:             case '}':
ferencd@0:                 return token_type::end_object;
ferencd@0:             case ':':
ferencd@0:                 return token_type::name_separator;
ferencd@0:             case ',':
ferencd@0:                 return token_type::value_separator;
ferencd@0: 
ferencd@0:             // literals
ferencd@0:             case 't':
ferencd@0:                 return scan_literal("true", 4, token_type::literal_true);
ferencd@0:             case 'f':
ferencd@0:                 return scan_literal("false", 5, token_type::literal_false);
ferencd@0:             case 'n':
ferencd@0:                 return scan_literal("null", 4, token_type::literal_null);
ferencd@0: 
ferencd@0:             // string
ferencd@0:             case '\"':
ferencd@0:                 return scan_string();
ferencd@0: 
ferencd@0:             // number
ferencd@0:             case '-':
ferencd@0:             case '0':
ferencd@0:             case '1':
ferencd@0:             case '2':
ferencd@0:             case '3':
ferencd@0:             case '4':
ferencd@0:             case '5':
ferencd@0:             case '6':
ferencd@0:             case '7':
ferencd@0:             case '8':
ferencd@0:             case '9':
ferencd@0:                 return scan_number();
ferencd@0: 
ferencd@0:             // end of input (the null byte is needed when parsing from
ferencd@0:             // string literals)
ferencd@0:             case '\0':
ferencd@0:             case std::char_traits<char>::eof():
ferencd@0:                 return token_type::end_of_input;
ferencd@0: 
ferencd@0:             // error
ferencd@0:             default:
ferencd@0:                 error_message = "invalid literal";
ferencd@0:                 return token_type::parse_error;
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     /// input adapter
ferencd@0:     detail::input_adapter_t ia = nullptr;
ferencd@0: 
ferencd@0:     /// the current character
ferencd@0:     std::char_traits<char>::int_type current = std::char_traits<char>::eof();
ferencd@0: 
ferencd@0:     /// whether the next get() call should just return current
ferencd@0:     bool next_unget = false;
ferencd@0: 
ferencd@0:     /// the start position of the current token
ferencd@0:     position_t position {};
ferencd@0: 
ferencd@0:     /// raw input token string (for error messages)
ferencd@0:     std::vector<char> token_string {};
ferencd@0: 
ferencd@0:     /// buffer for variable-length tokens (numbers, strings)
ferencd@0:     string_t token_buffer {};
ferencd@0: 
ferencd@0:     /// a description of occurred lexer errors
ferencd@0:     const char* error_message = "";
ferencd@0: 
ferencd@0:     // number values
ferencd@0:     number_integer_t value_integer = 0;
ferencd@0:     number_unsigned_t value_unsigned = 0;
ferencd@0:     number_float_t value_float = 0;
ferencd@0: 
ferencd@0:     /// the decimal point
ferencd@0:     const char decimal_point_char = '.';
ferencd@0: };
ferencd@0: }  // namespace detail
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/input/parser.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <cassert> // assert
ferencd@0: #include <cmath> // isfinite
ferencd@0: #include <cstdint> // uint8_t
ferencd@0: #include <functional> // function
ferencd@0: #include <string> // string
ferencd@0: #include <utility> // move
ferencd@0: #include <vector> // vector
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/exceptions.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/input/input_adapters.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/input/json_sax.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/input/lexer.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/macro_scope.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/meta/is_sax.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/value_t.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: ////////////
ferencd@0: // parser //
ferencd@0: ////////////
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief syntax analysis
ferencd@0: 
ferencd@0: This class implements a recursive decent parser.
ferencd@0: */
ferencd@0: template<typename BasicJsonType>
ferencd@0: class parser
ferencd@0: {
ferencd@0:     using number_integer_t = typename BasicJsonType::number_integer_t;
ferencd@0:     using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
ferencd@0:     using number_float_t = typename BasicJsonType::number_float_t;
ferencd@0:     using string_t = typename BasicJsonType::string_t;
ferencd@0:     using lexer_t = lexer<BasicJsonType>;
ferencd@0:     using token_type = typename lexer_t::token_type;
ferencd@0: 
ferencd@0:   public:
ferencd@0:     enum class parse_event_t : uint8_t
ferencd@0:     {
ferencd@0:         /// the parser read `{` and started to process a JSON object
ferencd@0:         object_start,
ferencd@0:         /// the parser read `}` and finished processing a JSON object
ferencd@0:         object_end,
ferencd@0:         /// the parser read `[` and started to process a JSON array
ferencd@0:         array_start,
ferencd@0:         /// the parser read `]` and finished processing a JSON array
ferencd@0:         array_end,
ferencd@0:         /// the parser read a key of a value in an object
ferencd@0:         key,
ferencd@0:         /// the parser finished reading a JSON value
ferencd@0:         value
ferencd@0:     };
ferencd@0: 
ferencd@0:     using parser_callback_t =
ferencd@0:         std::function<bool(int depth, parse_event_t event, BasicJsonType& parsed)>;
ferencd@0: 
ferencd@0:     /// a parser reading from an input adapter
ferencd@0:     explicit parser(detail::input_adapter_t&& adapter,
ferencd@0:                     const parser_callback_t cb = nullptr,
ferencd@0:                     const bool allow_exceptions_ = true)
ferencd@0:         : callback(cb), m_lexer(std::move(adapter)), allow_exceptions(allow_exceptions_)
ferencd@0:     {
ferencd@0:         // read first token
ferencd@0:         get_token();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief public parser interface
ferencd@0: 
ferencd@0:     @param[in] strict      whether to expect the last token to be EOF
ferencd@0:     @param[in,out] result  parsed JSON value
ferencd@0: 
ferencd@0:     @throw parse_error.101 in case of an unexpected token
ferencd@0:     @throw parse_error.102 if to_unicode fails or surrogate error
ferencd@0:     @throw parse_error.103 if to_unicode fails
ferencd@0:     */
ferencd@0:     void parse(const bool strict, BasicJsonType& result)
ferencd@0:     {
ferencd@0:         if (callback)
ferencd@0:         {
ferencd@0:             json_sax_dom_callback_parser<BasicJsonType> sdp(result, callback, allow_exceptions);
ferencd@0:             sax_parse_internal(&sdp);
ferencd@0:             result.assert_invariant();
ferencd@0: 
ferencd@0:             // in strict mode, input must be completely read
ferencd@0:             if (strict and (get_token() != token_type::end_of_input))
ferencd@0:             {
ferencd@0:                 sdp.parse_error(m_lexer.get_position(),
ferencd@0:                                 m_lexer.get_token_string(),
ferencd@0:                                 parse_error::create(101, m_lexer.get_position(),
ferencd@0:                                                     exception_message(token_type::end_of_input, "value")));
ferencd@0:             }
ferencd@0: 
ferencd@0:             // in case of an error, return discarded value
ferencd@0:             if (sdp.is_errored())
ferencd@0:             {
ferencd@0:                 result = value_t::discarded;
ferencd@0:                 return;
ferencd@0:             }
ferencd@0: 
ferencd@0:             // set top-level value to null if it was discarded by the callback
ferencd@0:             // function
ferencd@0:             if (result.is_discarded())
ferencd@0:             {
ferencd@0:                 result = nullptr;
ferencd@0:             }
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             json_sax_dom_parser<BasicJsonType> sdp(result, allow_exceptions);
ferencd@0:             sax_parse_internal(&sdp);
ferencd@0:             result.assert_invariant();
ferencd@0: 
ferencd@0:             // in strict mode, input must be completely read
ferencd@0:             if (strict and (get_token() != token_type::end_of_input))
ferencd@0:             {
ferencd@0:                 sdp.parse_error(m_lexer.get_position(),
ferencd@0:                                 m_lexer.get_token_string(),
ferencd@0:                                 parse_error::create(101, m_lexer.get_position(),
ferencd@0:                                                     exception_message(token_type::end_of_input, "value")));
ferencd@0:             }
ferencd@0: 
ferencd@0:             // in case of an error, return discarded value
ferencd@0:             if (sdp.is_errored())
ferencd@0:             {
ferencd@0:                 result = value_t::discarded;
ferencd@0:                 return;
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief public accept interface
ferencd@0: 
ferencd@0:     @param[in] strict  whether to expect the last token to be EOF
ferencd@0:     @return whether the input is a proper JSON text
ferencd@0:     */
ferencd@0:     bool accept(const bool strict = true)
ferencd@0:     {
ferencd@0:         json_sax_acceptor<BasicJsonType> sax_acceptor;
ferencd@0:         return sax_parse(&sax_acceptor, strict);
ferencd@0:     }
ferencd@0: 
ferencd@0:     template <typename SAX>
ferencd@0:     JSON_HEDLEY_NON_NULL(2)
ferencd@0:     bool sax_parse(SAX* sax, const bool strict = true)
ferencd@0:     {
ferencd@0:         (void)detail::is_sax_static_asserts<SAX, BasicJsonType> {};
ferencd@0:         const bool result = sax_parse_internal(sax);
ferencd@0: 
ferencd@0:         // strict mode: next byte must be EOF
ferencd@0:         if (result and strict and (get_token() != token_type::end_of_input))
ferencd@0:         {
ferencd@0:             return sax->parse_error(m_lexer.get_position(),
ferencd@0:                                     m_lexer.get_token_string(),
ferencd@0:                                     parse_error::create(101, m_lexer.get_position(),
ferencd@0:                                             exception_message(token_type::end_of_input, "value")));
ferencd@0:         }
ferencd@0: 
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     template <typename SAX>
ferencd@0:     JSON_HEDLEY_NON_NULL(2)
ferencd@0:     bool sax_parse_internal(SAX* sax)
ferencd@0:     {
ferencd@0:         // stack to remember the hierarchy of structured values we are parsing
ferencd@0:         // true = array; false = object
ferencd@0:         std::vector<bool> states;
ferencd@0:         // value to avoid a goto (see comment where set to true)
ferencd@0:         bool skip_to_state_evaluation = false;
ferencd@0: 
ferencd@0:         while (true)
ferencd@0:         {
ferencd@0:             if (not skip_to_state_evaluation)
ferencd@0:             {
ferencd@0:                 // invariant: get_token() was called before each iteration
ferencd@0:                 switch (last_token)
ferencd@0:                 {
ferencd@0:                     case token_type::begin_object:
ferencd@0:                     {
ferencd@0:                         if (JSON_HEDLEY_UNLIKELY(not sax->start_object(std::size_t(-1))))
ferencd@0:                         {
ferencd@0:                             return false;
ferencd@0:                         }
ferencd@0: 
ferencd@0:                         // closing } -> we are done
ferencd@0:                         if (get_token() == token_type::end_object)
ferencd@0:                         {
ferencd@0:                             if (JSON_HEDLEY_UNLIKELY(not sax->end_object()))
ferencd@0:                             {
ferencd@0:                                 return false;
ferencd@0:                             }
ferencd@0:                             break;
ferencd@0:                         }
ferencd@0: 
ferencd@0:                         // parse key
ferencd@0:                         if (JSON_HEDLEY_UNLIKELY(last_token != token_type::value_string))
ferencd@0:                         {
ferencd@0:                             return sax->parse_error(m_lexer.get_position(),
ferencd@0:                                                     m_lexer.get_token_string(),
ferencd@0:                                                     parse_error::create(101, m_lexer.get_position(),
ferencd@0:                                                             exception_message(token_type::value_string, "object key")));
ferencd@0:                         }
ferencd@0:                         if (JSON_HEDLEY_UNLIKELY(not sax->key(m_lexer.get_string())))
ferencd@0:                         {
ferencd@0:                             return false;
ferencd@0:                         }
ferencd@0: 
ferencd@0:                         // parse separator (:)
ferencd@0:                         if (JSON_HEDLEY_UNLIKELY(get_token() != token_type::name_separator))
ferencd@0:                         {
ferencd@0:                             return sax->parse_error(m_lexer.get_position(),
ferencd@0:                                                     m_lexer.get_token_string(),
ferencd@0:                                                     parse_error::create(101, m_lexer.get_position(),
ferencd@0:                                                             exception_message(token_type::name_separator, "object separator")));
ferencd@0:                         }
ferencd@0: 
ferencd@0:                         // remember we are now inside an object
ferencd@0:                         states.push_back(false);
ferencd@0: 
ferencd@0:                         // parse values
ferencd@0:                         get_token();
ferencd@0:                         continue;
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     case token_type::begin_array:
ferencd@0:                     {
ferencd@0:                         if (JSON_HEDLEY_UNLIKELY(not sax->start_array(std::size_t(-1))))
ferencd@0:                         {
ferencd@0:                             return false;
ferencd@0:                         }
ferencd@0: 
ferencd@0:                         // closing ] -> we are done
ferencd@0:                         if (get_token() == token_type::end_array)
ferencd@0:                         {
ferencd@0:                             if (JSON_HEDLEY_UNLIKELY(not sax->end_array()))
ferencd@0:                             {
ferencd@0:                                 return false;
ferencd@0:                             }
ferencd@0:                             break;
ferencd@0:                         }
ferencd@0: 
ferencd@0:                         // remember we are now inside an array
ferencd@0:                         states.push_back(true);
ferencd@0: 
ferencd@0:                         // parse values (no need to call get_token)
ferencd@0:                         continue;
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     case token_type::value_float:
ferencd@0:                     {
ferencd@0:                         const auto res = m_lexer.get_number_float();
ferencd@0: 
ferencd@0:                         if (JSON_HEDLEY_UNLIKELY(not std::isfinite(res)))
ferencd@0:                         {
ferencd@0:                             return sax->parse_error(m_lexer.get_position(),
ferencd@0:                                                     m_lexer.get_token_string(),
ferencd@0:                                                     out_of_range::create(406, "number overflow parsing '" + m_lexer.get_token_string() + "'"));
ferencd@0:                         }
ferencd@0: 
ferencd@0:                         if (JSON_HEDLEY_UNLIKELY(not sax->number_float(res, m_lexer.get_string())))
ferencd@0:                         {
ferencd@0:                             return false;
ferencd@0:                         }
ferencd@0: 
ferencd@0:                         break;
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     case token_type::literal_false:
ferencd@0:                     {
ferencd@0:                         if (JSON_HEDLEY_UNLIKELY(not sax->boolean(false)))
ferencd@0:                         {
ferencd@0:                             return false;
ferencd@0:                         }
ferencd@0:                         break;
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     case token_type::literal_null:
ferencd@0:                     {
ferencd@0:                         if (JSON_HEDLEY_UNLIKELY(not sax->null()))
ferencd@0:                         {
ferencd@0:                             return false;
ferencd@0:                         }
ferencd@0:                         break;
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     case token_type::literal_true:
ferencd@0:                     {
ferencd@0:                         if (JSON_HEDLEY_UNLIKELY(not sax->boolean(true)))
ferencd@0:                         {
ferencd@0:                             return false;
ferencd@0:                         }
ferencd@0:                         break;
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     case token_type::value_integer:
ferencd@0:                     {
ferencd@0:                         if (JSON_HEDLEY_UNLIKELY(not sax->number_integer(m_lexer.get_number_integer())))
ferencd@0:                         {
ferencd@0:                             return false;
ferencd@0:                         }
ferencd@0:                         break;
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     case token_type::value_string:
ferencd@0:                     {
ferencd@0:                         if (JSON_HEDLEY_UNLIKELY(not sax->string(m_lexer.get_string())))
ferencd@0:                         {
ferencd@0:                             return false;
ferencd@0:                         }
ferencd@0:                         break;
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     case token_type::value_unsigned:
ferencd@0:                     {
ferencd@0:                         if (JSON_HEDLEY_UNLIKELY(not sax->number_unsigned(m_lexer.get_number_unsigned())))
ferencd@0:                         {
ferencd@0:                             return false;
ferencd@0:                         }
ferencd@0:                         break;
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     case token_type::parse_error:
ferencd@0:                     {
ferencd@0:                         // using "uninitialized" to avoid "expected" message
ferencd@0:                         return sax->parse_error(m_lexer.get_position(),
ferencd@0:                                                 m_lexer.get_token_string(),
ferencd@0:                                                 parse_error::create(101, m_lexer.get_position(),
ferencd@0:                                                         exception_message(token_type::uninitialized, "value")));
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     default: // the last token was unexpected
ferencd@0:                     {
ferencd@0:                         return sax->parse_error(m_lexer.get_position(),
ferencd@0:                                                 m_lexer.get_token_string(),
ferencd@0:                                                 parse_error::create(101, m_lexer.get_position(),
ferencd@0:                                                         exception_message(token_type::literal_or_value, "value")));
ferencd@0:                     }
ferencd@0:                 }
ferencd@0:             }
ferencd@0:             else
ferencd@0:             {
ferencd@0:                 skip_to_state_evaluation = false;
ferencd@0:             }
ferencd@0: 
ferencd@0:             // we reached this line after we successfully parsed a value
ferencd@0:             if (states.empty())
ferencd@0:             {
ferencd@0:                 // empty stack: we reached the end of the hierarchy: done
ferencd@0:                 return true;
ferencd@0:             }
ferencd@0: 
ferencd@0:             if (states.back())  // array
ferencd@0:             {
ferencd@0:                 // comma -> next value
ferencd@0:                 if (get_token() == token_type::value_separator)
ferencd@0:                 {
ferencd@0:                     // parse a new value
ferencd@0:                     get_token();
ferencd@0:                     continue;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // closing ]
ferencd@0:                 if (JSON_HEDLEY_LIKELY(last_token == token_type::end_array))
ferencd@0:                 {
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(not sax->end_array()))
ferencd@0:                     {
ferencd@0:                         return false;
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     // We are done with this array. Before we can parse a
ferencd@0:                     // new value, we need to evaluate the new state first.
ferencd@0:                     // By setting skip_to_state_evaluation to false, we
ferencd@0:                     // are effectively jumping to the beginning of this if.
ferencd@0:                     assert(not states.empty());
ferencd@0:                     states.pop_back();
ferencd@0:                     skip_to_state_evaluation = true;
ferencd@0:                     continue;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 return sax->parse_error(m_lexer.get_position(),
ferencd@0:                                         m_lexer.get_token_string(),
ferencd@0:                                         parse_error::create(101, m_lexer.get_position(),
ferencd@0:                                                 exception_message(token_type::end_array, "array")));
ferencd@0:             }
ferencd@0:             else  // object
ferencd@0:             {
ferencd@0:                 // comma -> next value
ferencd@0:                 if (get_token() == token_type::value_separator)
ferencd@0:                 {
ferencd@0:                     // parse key
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(get_token() != token_type::value_string))
ferencd@0:                     {
ferencd@0:                         return sax->parse_error(m_lexer.get_position(),
ferencd@0:                                                 m_lexer.get_token_string(),
ferencd@0:                                                 parse_error::create(101, m_lexer.get_position(),
ferencd@0:                                                         exception_message(token_type::value_string, "object key")));
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(not sax->key(m_lexer.get_string())))
ferencd@0:                     {
ferencd@0:                         return false;
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     // parse separator (:)
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(get_token() != token_type::name_separator))
ferencd@0:                     {
ferencd@0:                         return sax->parse_error(m_lexer.get_position(),
ferencd@0:                                                 m_lexer.get_token_string(),
ferencd@0:                                                 parse_error::create(101, m_lexer.get_position(),
ferencd@0:                                                         exception_message(token_type::name_separator, "object separator")));
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     // parse values
ferencd@0:                     get_token();
ferencd@0:                     continue;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // closing }
ferencd@0:                 if (JSON_HEDLEY_LIKELY(last_token == token_type::end_object))
ferencd@0:                 {
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(not sax->end_object()))
ferencd@0:                     {
ferencd@0:                         return false;
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     // We are done with this object. Before we can parse a
ferencd@0:                     // new value, we need to evaluate the new state first.
ferencd@0:                     // By setting skip_to_state_evaluation to false, we
ferencd@0:                     // are effectively jumping to the beginning of this if.
ferencd@0:                     assert(not states.empty());
ferencd@0:                     states.pop_back();
ferencd@0:                     skip_to_state_evaluation = true;
ferencd@0:                     continue;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 return sax->parse_error(m_lexer.get_position(),
ferencd@0:                                         m_lexer.get_token_string(),
ferencd@0:                                         parse_error::create(101, m_lexer.get_position(),
ferencd@0:                                                 exception_message(token_type::end_object, "object")));
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// get next token from lexer
ferencd@0:     token_type get_token()
ferencd@0:     {
ferencd@0:         return last_token = m_lexer.scan();
ferencd@0:     }
ferencd@0: 
ferencd@0:     std::string exception_message(const token_type expected, const std::string& context)
ferencd@0:     {
ferencd@0:         std::string error_msg = "syntax error ";
ferencd@0: 
ferencd@0:         if (not context.empty())
ferencd@0:         {
ferencd@0:             error_msg += "while parsing " + context + " ";
ferencd@0:         }
ferencd@0: 
ferencd@0:         error_msg += "- ";
ferencd@0: 
ferencd@0:         if (last_token == token_type::parse_error)
ferencd@0:         {
ferencd@0:             error_msg += std::string(m_lexer.get_error_message()) + "; last read: '" +
ferencd@0:                          m_lexer.get_token_string() + "'";
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             error_msg += "unexpected " + std::string(lexer_t::token_type_name(last_token));
ferencd@0:         }
ferencd@0: 
ferencd@0:         if (expected != token_type::uninitialized)
ferencd@0:         {
ferencd@0:             error_msg += "; expected " + std::string(lexer_t::token_type_name(expected));
ferencd@0:         }
ferencd@0: 
ferencd@0:         return error_msg;
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     /// callback function
ferencd@0:     const parser_callback_t callback = nullptr;
ferencd@0:     /// the type of the last read token
ferencd@0:     token_type last_token = token_type::uninitialized;
ferencd@0:     /// the lexer
ferencd@0:     lexer_t m_lexer;
ferencd@0:     /// whether to throw exceptions in case of errors
ferencd@0:     const bool allow_exceptions = true;
ferencd@0: };
ferencd@0: }  // namespace detail
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/iterators/internal_iterator.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/iterators/primitive_iterator.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <cstddef> // ptrdiff_t
ferencd@0: #include <limits>  // numeric_limits
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: /*
ferencd@0: @brief an iterator for primitive JSON types
ferencd@0: 
ferencd@0: This class models an iterator for primitive JSON types (boolean, number,
ferencd@0: string). It's only purpose is to allow the iterator/const_iterator classes
ferencd@0: to "iterate" over primitive values. Internally, the iterator is modeled by
ferencd@0: a `difference_type` variable. Value begin_value (`0`) models the begin,
ferencd@0: end_value (`1`) models past the end.
ferencd@0: */
ferencd@0: class primitive_iterator_t
ferencd@0: {
ferencd@0:   private:
ferencd@0:     using difference_type = std::ptrdiff_t;
ferencd@0:     static constexpr difference_type begin_value = 0;
ferencd@0:     static constexpr difference_type end_value = begin_value + 1;
ferencd@0: 
ferencd@0:     /// iterator as signed integer type
ferencd@0:     difference_type m_it = (std::numeric_limits<std::ptrdiff_t>::min)();
ferencd@0: 
ferencd@0:   public:
ferencd@0:     constexpr difference_type get_value() const noexcept
ferencd@0:     {
ferencd@0:         return m_it;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// set iterator to a defined beginning
ferencd@0:     void set_begin() noexcept
ferencd@0:     {
ferencd@0:         m_it = begin_value;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// set iterator to a defined past the end
ferencd@0:     void set_end() noexcept
ferencd@0:     {
ferencd@0:         m_it = end_value;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// return whether the iterator can be dereferenced
ferencd@0:     constexpr bool is_begin() const noexcept
ferencd@0:     {
ferencd@0:         return m_it == begin_value;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// return whether the iterator is at end
ferencd@0:     constexpr bool is_end() const noexcept
ferencd@0:     {
ferencd@0:         return m_it == end_value;
ferencd@0:     }
ferencd@0: 
ferencd@0:     friend constexpr bool operator==(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept
ferencd@0:     {
ferencd@0:         return lhs.m_it == rhs.m_it;
ferencd@0:     }
ferencd@0: 
ferencd@0:     friend constexpr bool operator<(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept
ferencd@0:     {
ferencd@0:         return lhs.m_it < rhs.m_it;
ferencd@0:     }
ferencd@0: 
ferencd@0:     primitive_iterator_t operator+(difference_type n) noexcept
ferencd@0:     {
ferencd@0:         auto result = *this;
ferencd@0:         result += n;
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     friend constexpr difference_type operator-(primitive_iterator_t lhs, primitive_iterator_t rhs) noexcept
ferencd@0:     {
ferencd@0:         return lhs.m_it - rhs.m_it;
ferencd@0:     }
ferencd@0: 
ferencd@0:     primitive_iterator_t& operator++() noexcept
ferencd@0:     {
ferencd@0:         ++m_it;
ferencd@0:         return *this;
ferencd@0:     }
ferencd@0: 
ferencd@0:     primitive_iterator_t const operator++(int) noexcept
ferencd@0:     {
ferencd@0:         auto result = *this;
ferencd@0:         ++m_it;
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     primitive_iterator_t& operator--() noexcept
ferencd@0:     {
ferencd@0:         --m_it;
ferencd@0:         return *this;
ferencd@0:     }
ferencd@0: 
ferencd@0:     primitive_iterator_t const operator--(int) noexcept
ferencd@0:     {
ferencd@0:         auto result = *this;
ferencd@0:         --m_it;
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     primitive_iterator_t& operator+=(difference_type n) noexcept
ferencd@0:     {
ferencd@0:         m_it += n;
ferencd@0:         return *this;
ferencd@0:     }
ferencd@0: 
ferencd@0:     primitive_iterator_t& operator-=(difference_type n) noexcept
ferencd@0:     {
ferencd@0:         m_it -= n;
ferencd@0:         return *this;
ferencd@0:     }
ferencd@0: };
ferencd@0: }  // namespace detail
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: /*!
ferencd@0: @brief an iterator value
ferencd@0: 
ferencd@0: @note This structure could easily be a union, but MSVC currently does not allow
ferencd@0: unions members with complex constructors, see https://github.com/nlohmann/json/pull/105.
ferencd@0: */
ferencd@0: template<typename BasicJsonType> struct internal_iterator
ferencd@0: {
ferencd@0:     /// iterator for JSON objects
ferencd@0:     typename BasicJsonType::object_t::iterator object_iterator {};
ferencd@0:     /// iterator for JSON arrays
ferencd@0:     typename BasicJsonType::array_t::iterator array_iterator {};
ferencd@0:     /// generic iterator for all other types
ferencd@0:     primitive_iterator_t primitive_iterator {};
ferencd@0: };
ferencd@0: }  // namespace detail
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/iterators/iter_impl.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <ciso646> // not
ferencd@0: #include <iterator> // iterator, random_access_iterator_tag, bidirectional_iterator_tag, advance, next
ferencd@0: #include <type_traits> // conditional, is_const, remove_const
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/exceptions.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/iterators/internal_iterator.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/iterators/primitive_iterator.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/macro_scope.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/meta/cpp_future.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/meta/type_traits.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/value_t.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: // forward declare, to be able to friend it later on
ferencd@0: template<typename IteratorType> class iteration_proxy;
ferencd@0: template<typename IteratorType> class iteration_proxy_value;
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief a template for a bidirectional iterator for the @ref basic_json class
ferencd@0: This class implements a both iterators (iterator and const_iterator) for the
ferencd@0: @ref basic_json class.
ferencd@0: @note An iterator is called *initialized* when a pointer to a JSON value has
ferencd@0:       been set (e.g., by a constructor or a copy assignment). If the iterator is
ferencd@0:       default-constructed, it is *uninitialized* and most methods are undefined.
ferencd@0:       **The library uses assertions to detect calls on uninitialized iterators.**
ferencd@0: @requirement The class satisfies the following concept requirements:
ferencd@0: -
ferencd@0: [BidirectionalIterator](https://en.cppreference.com/w/cpp/named_req/BidirectionalIterator):
ferencd@0:   The iterator that can be moved can be moved in both directions (i.e.
ferencd@0:   incremented and decremented).
ferencd@0: @since version 1.0.0, simplified in version 2.0.9, change to bidirectional
ferencd@0:        iterators in version 3.0.0 (see https://github.com/nlohmann/json/issues/593)
ferencd@0: */
ferencd@0: template<typename BasicJsonType>
ferencd@0: class iter_impl
ferencd@0: {
ferencd@0:     /// allow basic_json to access private members
ferencd@0:     friend iter_impl<typename std::conditional<std::is_const<BasicJsonType>::value, typename std::remove_const<BasicJsonType>::type, const BasicJsonType>::type>;
ferencd@0:     friend BasicJsonType;
ferencd@0:     friend iteration_proxy<iter_impl>;
ferencd@0:     friend iteration_proxy_value<iter_impl>;
ferencd@0: 
ferencd@0:     using object_t = typename BasicJsonType::object_t;
ferencd@0:     using array_t = typename BasicJsonType::array_t;
ferencd@0:     // make sure BasicJsonType is basic_json or const basic_json
ferencd@0:     static_assert(is_basic_json<typename std::remove_const<BasicJsonType>::type>::value,
ferencd@0:                   "iter_impl only accepts (const) basic_json");
ferencd@0: 
ferencd@0:   public:
ferencd@0: 
ferencd@0:     /// The std::iterator class template (used as a base class to provide typedefs) is deprecated in C++17.
ferencd@0:     /// The C++ Standard has never required user-defined iterators to derive from std::iterator.
ferencd@0:     /// A user-defined iterator should provide publicly accessible typedefs named
ferencd@0:     /// iterator_category, value_type, difference_type, pointer, and reference.
ferencd@0:     /// Note that value_type is required to be non-const, even for constant iterators.
ferencd@0:     using iterator_category = std::bidirectional_iterator_tag;
ferencd@0: 
ferencd@0:     /// the type of the values when the iterator is dereferenced
ferencd@0:     using value_type = typename BasicJsonType::value_type;
ferencd@0:     /// a type to represent differences between iterators
ferencd@0:     using difference_type = typename BasicJsonType::difference_type;
ferencd@0:     /// defines a pointer to the type iterated over (value_type)
ferencd@0:     using pointer = typename std::conditional<std::is_const<BasicJsonType>::value,
ferencd@0:           typename BasicJsonType::const_pointer,
ferencd@0:           typename BasicJsonType::pointer>::type;
ferencd@0:     /// defines a reference to the type iterated over (value_type)
ferencd@0:     using reference =
ferencd@0:         typename std::conditional<std::is_const<BasicJsonType>::value,
ferencd@0:         typename BasicJsonType::const_reference,
ferencd@0:         typename BasicJsonType::reference>::type;
ferencd@0: 
ferencd@0:     /// default constructor
ferencd@0:     iter_impl() = default;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief constructor for a given JSON instance
ferencd@0:     @param[in] object  pointer to a JSON object for this iterator
ferencd@0:     @pre object != nullptr
ferencd@0:     @post The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     explicit iter_impl(pointer object) noexcept : m_object(object)
ferencd@0:     {
ferencd@0:         assert(m_object != nullptr);
ferencd@0: 
ferencd@0:         switch (m_object->m_type)
ferencd@0:         {
ferencd@0:             case value_t::object:
ferencd@0:             {
ferencd@0:                 m_it.object_iterator = typename object_t::iterator();
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 m_it.array_iterator = typename array_t::iterator();
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 m_it.primitive_iterator = primitive_iterator_t();
ferencd@0:                 break;
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @note The conventional copy constructor and copy assignment are implicitly
ferencd@0:           defined. Combined with the following converting constructor and
ferencd@0:           assignment, they support: (1) copy from iterator to iterator, (2)
ferencd@0:           copy from const iterator to const iterator, and (3) conversion from
ferencd@0:           iterator to const iterator. However conversion from const iterator
ferencd@0:           to iterator is not defined.
ferencd@0:     */
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief const copy constructor
ferencd@0:     @param[in] other const iterator to copy from
ferencd@0:     @note This copy constuctor had to be defined explicitely to circumvent a bug
ferencd@0:           occuring on msvc v19.0 compiler (VS 2015) debug build. For more
ferencd@0:           information refer to: https://github.com/nlohmann/json/issues/1608
ferencd@0:     */
ferencd@0:     iter_impl(const iter_impl<const BasicJsonType>& other) noexcept
ferencd@0:         : m_object(other.m_object), m_it(other.m_it)
ferencd@0:     {}
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief converting assignment
ferencd@0:     @param[in] other const iterator to copy from
ferencd@0:     @return const/non-const iterator
ferencd@0:     @note It is not checked whether @a other is initialized.
ferencd@0:     */
ferencd@0:     iter_impl& operator=(const iter_impl<const BasicJsonType>& other) noexcept
ferencd@0:     {
ferencd@0:         m_object = other.m_object;
ferencd@0:         m_it = other.m_it;
ferencd@0:         return *this;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief converting constructor
ferencd@0:     @param[in] other  non-const iterator to copy from
ferencd@0:     @note It is not checked whether @a other is initialized.
ferencd@0:     */
ferencd@0:     iter_impl(const iter_impl<typename std::remove_const<BasicJsonType>::type>& other) noexcept
ferencd@0:         : m_object(other.m_object), m_it(other.m_it)
ferencd@0:     {}
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief converting assignment
ferencd@0:     @param[in] other  non-const iterator to copy from
ferencd@0:     @return const/non-const iterator
ferencd@0:     @note It is not checked whether @a other is initialized.
ferencd@0:     */
ferencd@0:     iter_impl& operator=(const iter_impl<typename std::remove_const<BasicJsonType>::type>& other) noexcept
ferencd@0:     {
ferencd@0:         m_object = other.m_object;
ferencd@0:         m_it = other.m_it;
ferencd@0:         return *this;
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     /*!
ferencd@0:     @brief set the iterator to the first value
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     void set_begin() noexcept
ferencd@0:     {
ferencd@0:         assert(m_object != nullptr);
ferencd@0: 
ferencd@0:         switch (m_object->m_type)
ferencd@0:         {
ferencd@0:             case value_t::object:
ferencd@0:             {
ferencd@0:                 m_it.object_iterator = m_object->m_value.object->begin();
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 m_it.array_iterator = m_object->m_value.array->begin();
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::null:
ferencd@0:             {
ferencd@0:                 // set to end so begin()==end() is true: null is empty
ferencd@0:                 m_it.primitive_iterator.set_end();
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 m_it.primitive_iterator.set_begin();
ferencd@0:                 break;
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief set the iterator past the last value
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     void set_end() noexcept
ferencd@0:     {
ferencd@0:         assert(m_object != nullptr);
ferencd@0: 
ferencd@0:         switch (m_object->m_type)
ferencd@0:         {
ferencd@0:             case value_t::object:
ferencd@0:             {
ferencd@0:                 m_it.object_iterator = m_object->m_value.object->end();
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 m_it.array_iterator = m_object->m_value.array->end();
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 m_it.primitive_iterator.set_end();
ferencd@0:                 break;
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:   public:
ferencd@0:     /*!
ferencd@0:     @brief return a reference to the value pointed to by the iterator
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     reference operator*() const
ferencd@0:     {
ferencd@0:         assert(m_object != nullptr);
ferencd@0: 
ferencd@0:         switch (m_object->m_type)
ferencd@0:         {
ferencd@0:             case value_t::object:
ferencd@0:             {
ferencd@0:                 assert(m_it.object_iterator != m_object->m_value.object->end());
ferencd@0:                 return m_it.object_iterator->second;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 assert(m_it.array_iterator != m_object->m_value.array->end());
ferencd@0:                 return *m_it.array_iterator;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::null:
ferencd@0:                 JSON_THROW(invalid_iterator::create(214, "cannot get value"));
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 if (JSON_HEDLEY_LIKELY(m_it.primitive_iterator.is_begin()))
ferencd@0:                 {
ferencd@0:                     return *m_object;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 JSON_THROW(invalid_iterator::create(214, "cannot get value"));
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief dereference the iterator
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     pointer operator->() const
ferencd@0:     {
ferencd@0:         assert(m_object != nullptr);
ferencd@0: 
ferencd@0:         switch (m_object->m_type)
ferencd@0:         {
ferencd@0:             case value_t::object:
ferencd@0:             {
ferencd@0:                 assert(m_it.object_iterator != m_object->m_value.object->end());
ferencd@0:                 return &(m_it.object_iterator->second);
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 assert(m_it.array_iterator != m_object->m_value.array->end());
ferencd@0:                 return &*m_it.array_iterator;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 if (JSON_HEDLEY_LIKELY(m_it.primitive_iterator.is_begin()))
ferencd@0:                 {
ferencd@0:                     return m_object;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 JSON_THROW(invalid_iterator::create(214, "cannot get value"));
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief post-increment (it++)
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     iter_impl const operator++(int)
ferencd@0:     {
ferencd@0:         auto result = *this;
ferencd@0:         ++(*this);
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief pre-increment (++it)
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     iter_impl& operator++()
ferencd@0:     {
ferencd@0:         assert(m_object != nullptr);
ferencd@0: 
ferencd@0:         switch (m_object->m_type)
ferencd@0:         {
ferencd@0:             case value_t::object:
ferencd@0:             {
ferencd@0:                 std::advance(m_it.object_iterator, 1);
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 std::advance(m_it.array_iterator, 1);
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 ++m_it.primitive_iterator;
ferencd@0:                 break;
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         return *this;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief post-decrement (it--)
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     iter_impl const operator--(int)
ferencd@0:     {
ferencd@0:         auto result = *this;
ferencd@0:         --(*this);
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief pre-decrement (--it)
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     iter_impl& operator--()
ferencd@0:     {
ferencd@0:         assert(m_object != nullptr);
ferencd@0: 
ferencd@0:         switch (m_object->m_type)
ferencd@0:         {
ferencd@0:             case value_t::object:
ferencd@0:             {
ferencd@0:                 std::advance(m_it.object_iterator, -1);
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 std::advance(m_it.array_iterator, -1);
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 --m_it.primitive_iterator;
ferencd@0:                 break;
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         return *this;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief  comparison: equal
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     bool operator==(const iter_impl& other) const
ferencd@0:     {
ferencd@0:         // if objects are not the same, the comparison is undefined
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(m_object != other.m_object))
ferencd@0:         {
ferencd@0:             JSON_THROW(invalid_iterator::create(212, "cannot compare iterators of different containers"));
ferencd@0:         }
ferencd@0: 
ferencd@0:         assert(m_object != nullptr);
ferencd@0: 
ferencd@0:         switch (m_object->m_type)
ferencd@0:         {
ferencd@0:             case value_t::object:
ferencd@0:                 return (m_it.object_iterator == other.m_it.object_iterator);
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:                 return (m_it.array_iterator == other.m_it.array_iterator);
ferencd@0: 
ferencd@0:             default:
ferencd@0:                 return (m_it.primitive_iterator == other.m_it.primitive_iterator);
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief  comparison: not equal
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     bool operator!=(const iter_impl& other) const
ferencd@0:     {
ferencd@0:         return not operator==(other);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief  comparison: smaller
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     bool operator<(const iter_impl& other) const
ferencd@0:     {
ferencd@0:         // if objects are not the same, the comparison is undefined
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(m_object != other.m_object))
ferencd@0:         {
ferencd@0:             JSON_THROW(invalid_iterator::create(212, "cannot compare iterators of different containers"));
ferencd@0:         }
ferencd@0: 
ferencd@0:         assert(m_object != nullptr);
ferencd@0: 
ferencd@0:         switch (m_object->m_type)
ferencd@0:         {
ferencd@0:             case value_t::object:
ferencd@0:                 JSON_THROW(invalid_iterator::create(213, "cannot compare order of object iterators"));
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:                 return (m_it.array_iterator < other.m_it.array_iterator);
ferencd@0: 
ferencd@0:             default:
ferencd@0:                 return (m_it.primitive_iterator < other.m_it.primitive_iterator);
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief  comparison: less than or equal
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     bool operator<=(const iter_impl& other) const
ferencd@0:     {
ferencd@0:         return not other.operator < (*this);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief  comparison: greater than
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     bool operator>(const iter_impl& other) const
ferencd@0:     {
ferencd@0:         return not operator<=(other);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief  comparison: greater than or equal
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     bool operator>=(const iter_impl& other) const
ferencd@0:     {
ferencd@0:         return not operator<(other);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief  add to iterator
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     iter_impl& operator+=(difference_type i)
ferencd@0:     {
ferencd@0:         assert(m_object != nullptr);
ferencd@0: 
ferencd@0:         switch (m_object->m_type)
ferencd@0:         {
ferencd@0:             case value_t::object:
ferencd@0:                 JSON_THROW(invalid_iterator::create(209, "cannot use offsets with object iterators"));
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 std::advance(m_it.array_iterator, i);
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 m_it.primitive_iterator += i;
ferencd@0:                 break;
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         return *this;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief  subtract from iterator
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     iter_impl& operator-=(difference_type i)
ferencd@0:     {
ferencd@0:         return operator+=(-i);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief  add to iterator
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     iter_impl operator+(difference_type i) const
ferencd@0:     {
ferencd@0:         auto result = *this;
ferencd@0:         result += i;
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief  addition of distance and iterator
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     friend iter_impl operator+(difference_type i, const iter_impl& it)
ferencd@0:     {
ferencd@0:         auto result = it;
ferencd@0:         result += i;
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief  subtract from iterator
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     iter_impl operator-(difference_type i) const
ferencd@0:     {
ferencd@0:         auto result = *this;
ferencd@0:         result -= i;
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief  return difference
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     difference_type operator-(const iter_impl& other) const
ferencd@0:     {
ferencd@0:         assert(m_object != nullptr);
ferencd@0: 
ferencd@0:         switch (m_object->m_type)
ferencd@0:         {
ferencd@0:             case value_t::object:
ferencd@0:                 JSON_THROW(invalid_iterator::create(209, "cannot use offsets with object iterators"));
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:                 return m_it.array_iterator - other.m_it.array_iterator;
ferencd@0: 
ferencd@0:             default:
ferencd@0:                 return m_it.primitive_iterator - other.m_it.primitive_iterator;
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief  access to successor
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     reference operator[](difference_type n) const
ferencd@0:     {
ferencd@0:         assert(m_object != nullptr);
ferencd@0: 
ferencd@0:         switch (m_object->m_type)
ferencd@0:         {
ferencd@0:             case value_t::object:
ferencd@0:                 JSON_THROW(invalid_iterator::create(208, "cannot use operator[] for object iterators"));
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:                 return *std::next(m_it.array_iterator, n);
ferencd@0: 
ferencd@0:             case value_t::null:
ferencd@0:                 JSON_THROW(invalid_iterator::create(214, "cannot get value"));
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 if (JSON_HEDLEY_LIKELY(m_it.primitive_iterator.get_value() == -n))
ferencd@0:                 {
ferencd@0:                     return *m_object;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 JSON_THROW(invalid_iterator::create(214, "cannot get value"));
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief  return the key of an object iterator
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     const typename object_t::key_type& key() const
ferencd@0:     {
ferencd@0:         assert(m_object != nullptr);
ferencd@0: 
ferencd@0:         if (JSON_HEDLEY_LIKELY(m_object->is_object()))
ferencd@0:         {
ferencd@0:             return m_it.object_iterator->first;
ferencd@0:         }
ferencd@0: 
ferencd@0:         JSON_THROW(invalid_iterator::create(207, "cannot use key() for non-object iterators"));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief  return the value of an iterator
ferencd@0:     @pre The iterator is initialized; i.e. `m_object != nullptr`.
ferencd@0:     */
ferencd@0:     reference value() const
ferencd@0:     {
ferencd@0:         return operator*();
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     /// associated JSON instance
ferencd@0:     pointer m_object = nullptr;
ferencd@0:     /// the actual iterator of the associated instance
ferencd@0:     internal_iterator<typename std::remove_const<BasicJsonType>::type> m_it {};
ferencd@0: };
ferencd@0: } // namespace detail
ferencd@0: } // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/iterators/iteration_proxy.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/iterators/json_reverse_iterator.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <cstddef> // ptrdiff_t
ferencd@0: #include <iterator> // reverse_iterator
ferencd@0: #include <utility> // declval
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: //////////////////////
ferencd@0: // reverse_iterator //
ferencd@0: //////////////////////
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief a template for a reverse iterator class
ferencd@0: 
ferencd@0: @tparam Base the base iterator type to reverse. Valid types are @ref
ferencd@0: iterator (to create @ref reverse_iterator) and @ref const_iterator (to
ferencd@0: create @ref const_reverse_iterator).
ferencd@0: 
ferencd@0: @requirement The class satisfies the following concept requirements:
ferencd@0: -
ferencd@0: [BidirectionalIterator](https://en.cppreference.com/w/cpp/named_req/BidirectionalIterator):
ferencd@0:   The iterator that can be moved can be moved in both directions (i.e.
ferencd@0:   incremented and decremented).
ferencd@0: - [OutputIterator](https://en.cppreference.com/w/cpp/named_req/OutputIterator):
ferencd@0:   It is possible to write to the pointed-to element (only if @a Base is
ferencd@0:   @ref iterator).
ferencd@0: 
ferencd@0: @since version 1.0.0
ferencd@0: */
ferencd@0: template<typename Base>
ferencd@0: class json_reverse_iterator : public std::reverse_iterator<Base>
ferencd@0: {
ferencd@0:   public:
ferencd@0:     using difference_type = std::ptrdiff_t;
ferencd@0:     /// shortcut to the reverse iterator adapter
ferencd@0:     using base_iterator = std::reverse_iterator<Base>;
ferencd@0:     /// the reference type for the pointed-to element
ferencd@0:     using reference = typename Base::reference;
ferencd@0: 
ferencd@0:     /// create reverse iterator from iterator
ferencd@0:     explicit json_reverse_iterator(const typename base_iterator::iterator_type& it) noexcept
ferencd@0:         : base_iterator(it) {}
ferencd@0: 
ferencd@0:     /// create reverse iterator from base class
ferencd@0:     explicit json_reverse_iterator(const base_iterator& it) noexcept : base_iterator(it) {}
ferencd@0: 
ferencd@0:     /// post-increment (it++)
ferencd@0:     json_reverse_iterator const operator++(int)
ferencd@0:     {
ferencd@0:         return static_cast<json_reverse_iterator>(base_iterator::operator++(1));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// pre-increment (++it)
ferencd@0:     json_reverse_iterator& operator++()
ferencd@0:     {
ferencd@0:         return static_cast<json_reverse_iterator&>(base_iterator::operator++());
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// post-decrement (it--)
ferencd@0:     json_reverse_iterator const operator--(int)
ferencd@0:     {
ferencd@0:         return static_cast<json_reverse_iterator>(base_iterator::operator--(1));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// pre-decrement (--it)
ferencd@0:     json_reverse_iterator& operator--()
ferencd@0:     {
ferencd@0:         return static_cast<json_reverse_iterator&>(base_iterator::operator--());
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// add to iterator
ferencd@0:     json_reverse_iterator& operator+=(difference_type i)
ferencd@0:     {
ferencd@0:         return static_cast<json_reverse_iterator&>(base_iterator::operator+=(i));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// add to iterator
ferencd@0:     json_reverse_iterator operator+(difference_type i) const
ferencd@0:     {
ferencd@0:         return static_cast<json_reverse_iterator>(base_iterator::operator+(i));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// subtract from iterator
ferencd@0:     json_reverse_iterator operator-(difference_type i) const
ferencd@0:     {
ferencd@0:         return static_cast<json_reverse_iterator>(base_iterator::operator-(i));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// return difference
ferencd@0:     difference_type operator-(const json_reverse_iterator& other) const
ferencd@0:     {
ferencd@0:         return base_iterator(*this) - base_iterator(other);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// access to successor
ferencd@0:     reference operator[](difference_type n) const
ferencd@0:     {
ferencd@0:         return *(this->operator+(n));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// return the key of an object iterator
ferencd@0:     auto key() const -> decltype(std::declval<Base>().key())
ferencd@0:     {
ferencd@0:         auto it = --this->base();
ferencd@0:         return it.key();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// return the value of an iterator
ferencd@0:     reference value() const
ferencd@0:     {
ferencd@0:         auto it = --this->base();
ferencd@0:         return it.operator * ();
ferencd@0:     }
ferencd@0: };
ferencd@0: }  // namespace detail
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/iterators/primitive_iterator.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/json_pointer.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <algorithm> // all_of
ferencd@0: #include <cassert> // assert
ferencd@0: #include <cctype> // isdigit
ferencd@0: #include <numeric> // accumulate
ferencd@0: #include <string> // string
ferencd@0: #include <utility> // move
ferencd@0: #include <vector> // vector
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/exceptions.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/macro_scope.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/value_t.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: template<typename BasicJsonType>
ferencd@0: class json_pointer
ferencd@0: {
ferencd@0:     // allow basic_json to access private members
ferencd@0:     NLOHMANN_BASIC_JSON_TPL_DECLARATION
ferencd@0:     friend class basic_json;
ferencd@0: 
ferencd@0:   public:
ferencd@0:     /*!
ferencd@0:     @brief create JSON pointer
ferencd@0: 
ferencd@0:     Create a JSON pointer according to the syntax described in
ferencd@0:     [Section 3 of RFC6901](https://tools.ietf.org/html/rfc6901#section-3).
ferencd@0: 
ferencd@0:     @param[in] s  string representing the JSON pointer; if omitted, the empty
ferencd@0:                   string is assumed which references the whole JSON value
ferencd@0: 
ferencd@0:     @throw parse_error.107 if the given JSON pointer @a s is nonempty and does
ferencd@0:                            not begin with a slash (`/`); see example below
ferencd@0: 
ferencd@0:     @throw parse_error.108 if a tilde (`~`) in the given JSON pointer @a s is
ferencd@0:     not followed by `0` (representing `~`) or `1` (representing `/`); see
ferencd@0:     example below
ferencd@0: 
ferencd@0:     @liveexample{The example shows the construction several valid JSON pointers
ferencd@0:     as well as the exceptional behavior.,json_pointer}
ferencd@0: 
ferencd@0:     @since version 2.0.0
ferencd@0:     */
ferencd@0:     explicit json_pointer(const std::string& s = "")
ferencd@0:         : reference_tokens(split(s))
ferencd@0:     {}
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief return a string representation of the JSON pointer
ferencd@0: 
ferencd@0:     @invariant For each JSON pointer `ptr`, it holds:
ferencd@0:     @code {.cpp}
ferencd@0:     ptr == json_pointer(ptr.to_string());
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     @return a string representation of the JSON pointer
ferencd@0: 
ferencd@0:     @liveexample{The example shows the result of `to_string`.,json_pointer__to_string}
ferencd@0: 
ferencd@0:     @since version 2.0.0
ferencd@0:     */
ferencd@0:     std::string to_string() const
ferencd@0:     {
ferencd@0:         return std::accumulate(reference_tokens.begin(), reference_tokens.end(),
ferencd@0:                                std::string{},
ferencd@0:                                [](const std::string & a, const std::string & b)
ferencd@0:         {
ferencd@0:             return a + "/" + escape(b);
ferencd@0:         });
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// @copydoc to_string()
ferencd@0:     operator std::string() const
ferencd@0:     {
ferencd@0:         return to_string();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief append another JSON pointer at the end of this JSON pointer
ferencd@0: 
ferencd@0:     @param[in] ptr  JSON pointer to append
ferencd@0:     @return JSON pointer with @a ptr appended
ferencd@0: 
ferencd@0:     @liveexample{The example shows the usage of `operator/=`.,json_pointer__operator_add}
ferencd@0: 
ferencd@0:     @complexity Linear in the length of @a ptr.
ferencd@0: 
ferencd@0:     @sa @ref operator/=(std::string) to append a reference token
ferencd@0:     @sa @ref operator/=(std::size_t) to append an array index
ferencd@0:     @sa @ref operator/(const json_pointer&, const json_pointer&) for a binary operator
ferencd@0: 
ferencd@0:     @since version 3.6.0
ferencd@0:     */
ferencd@0:     json_pointer& operator/=(const json_pointer& ptr)
ferencd@0:     {
ferencd@0:         reference_tokens.insert(reference_tokens.end(),
ferencd@0:                                 ptr.reference_tokens.begin(),
ferencd@0:                                 ptr.reference_tokens.end());
ferencd@0:         return *this;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief append an unescaped reference token at the end of this JSON pointer
ferencd@0: 
ferencd@0:     @param[in] token  reference token to append
ferencd@0:     @return JSON pointer with @a token appended without escaping @a token
ferencd@0: 
ferencd@0:     @liveexample{The example shows the usage of `operator/=`.,json_pointer__operator_add}
ferencd@0: 
ferencd@0:     @complexity Amortized constant.
ferencd@0: 
ferencd@0:     @sa @ref operator/=(const json_pointer&) to append a JSON pointer
ferencd@0:     @sa @ref operator/=(std::size_t) to append an array index
ferencd@0:     @sa @ref operator/(const json_pointer&, std::size_t) for a binary operator
ferencd@0: 
ferencd@0:     @since version 3.6.0
ferencd@0:     */
ferencd@0:     json_pointer& operator/=(std::string token)
ferencd@0:     {
ferencd@0:         push_back(std::move(token));
ferencd@0:         return *this;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief append an array index at the end of this JSON pointer
ferencd@0: 
ferencd@0:     @param[in] array_index  array index ot append
ferencd@0:     @return JSON pointer with @a array_index appended
ferencd@0: 
ferencd@0:     @liveexample{The example shows the usage of `operator/=`.,json_pointer__operator_add}
ferencd@0: 
ferencd@0:     @complexity Amortized constant.
ferencd@0: 
ferencd@0:     @sa @ref operator/=(const json_pointer&) to append a JSON pointer
ferencd@0:     @sa @ref operator/=(std::string) to append a reference token
ferencd@0:     @sa @ref operator/(const json_pointer&, std::string) for a binary operator
ferencd@0: 
ferencd@0:     @since version 3.6.0
ferencd@0:     */
ferencd@0:     json_pointer& operator/=(std::size_t array_index)
ferencd@0:     {
ferencd@0:         return *this /= std::to_string(array_index);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief create a new JSON pointer by appending the right JSON pointer at the end of the left JSON pointer
ferencd@0: 
ferencd@0:     @param[in] lhs  JSON pointer
ferencd@0:     @param[in] rhs  JSON pointer
ferencd@0:     @return a new JSON pointer with @a rhs appended to @a lhs
ferencd@0: 
ferencd@0:     @liveexample{The example shows the usage of `operator/`.,json_pointer__operator_add_binary}
ferencd@0: 
ferencd@0:     @complexity Linear in the length of @a lhs and @a rhs.
ferencd@0: 
ferencd@0:     @sa @ref operator/=(const json_pointer&) to append a JSON pointer
ferencd@0: 
ferencd@0:     @since version 3.6.0
ferencd@0:     */
ferencd@0:     friend json_pointer operator/(const json_pointer& lhs,
ferencd@0:                                   const json_pointer& rhs)
ferencd@0:     {
ferencd@0:         return json_pointer(lhs) /= rhs;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief create a new JSON pointer by appending the unescaped token at the end of the JSON pointer
ferencd@0: 
ferencd@0:     @param[in] ptr  JSON pointer
ferencd@0:     @param[in] token  reference token
ferencd@0:     @return a new JSON pointer with unescaped @a token appended to @a ptr
ferencd@0: 
ferencd@0:     @liveexample{The example shows the usage of `operator/`.,json_pointer__operator_add_binary}
ferencd@0: 
ferencd@0:     @complexity Linear in the length of @a ptr.
ferencd@0: 
ferencd@0:     @sa @ref operator/=(std::string) to append a reference token
ferencd@0: 
ferencd@0:     @since version 3.6.0
ferencd@0:     */
ferencd@0:     friend json_pointer operator/(const json_pointer& ptr, std::string token)
ferencd@0:     {
ferencd@0:         return json_pointer(ptr) /= std::move(token);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief create a new JSON pointer by appending the array-index-token at the end of the JSON pointer
ferencd@0: 
ferencd@0:     @param[in] ptr  JSON pointer
ferencd@0:     @param[in] array_index  array index
ferencd@0:     @return a new JSON pointer with @a array_index appended to @a ptr
ferencd@0: 
ferencd@0:     @liveexample{The example shows the usage of `operator/`.,json_pointer__operator_add_binary}
ferencd@0: 
ferencd@0:     @complexity Linear in the length of @a ptr.
ferencd@0: 
ferencd@0:     @sa @ref operator/=(std::size_t) to append an array index
ferencd@0: 
ferencd@0:     @since version 3.6.0
ferencd@0:     */
ferencd@0:     friend json_pointer operator/(const json_pointer& ptr, std::size_t array_index)
ferencd@0:     {
ferencd@0:         return json_pointer(ptr) /= array_index;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief returns the parent of this JSON pointer
ferencd@0: 
ferencd@0:     @return parent of this JSON pointer; in case this JSON pointer is the root,
ferencd@0:             the root itself is returned
ferencd@0: 
ferencd@0:     @complexity Linear in the length of the JSON pointer.
ferencd@0: 
ferencd@0:     @liveexample{The example shows the result of `parent_pointer` for different
ferencd@0:     JSON Pointers.,json_pointer__parent_pointer}
ferencd@0: 
ferencd@0:     @since version 3.6.0
ferencd@0:     */
ferencd@0:     json_pointer parent_pointer() const
ferencd@0:     {
ferencd@0:         if (empty())
ferencd@0:         {
ferencd@0:             return *this;
ferencd@0:         }
ferencd@0: 
ferencd@0:         json_pointer res = *this;
ferencd@0:         res.pop_back();
ferencd@0:         return res;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief remove last reference token
ferencd@0: 
ferencd@0:     @pre not `empty()`
ferencd@0: 
ferencd@0:     @liveexample{The example shows the usage of `pop_back`.,json_pointer__pop_back}
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @throw out_of_range.405 if JSON pointer has no parent
ferencd@0: 
ferencd@0:     @since version 3.6.0
ferencd@0:     */
ferencd@0:     void pop_back()
ferencd@0:     {
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(empty()))
ferencd@0:         {
ferencd@0:             JSON_THROW(detail::out_of_range::create(405, "JSON pointer has no parent"));
ferencd@0:         }
ferencd@0: 
ferencd@0:         reference_tokens.pop_back();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief return last reference token
ferencd@0: 
ferencd@0:     @pre not `empty()`
ferencd@0:     @return last reference token
ferencd@0: 
ferencd@0:     @liveexample{The example shows the usage of `back`.,json_pointer__back}
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @throw out_of_range.405 if JSON pointer has no parent
ferencd@0: 
ferencd@0:     @since version 3.6.0
ferencd@0:     */
ferencd@0:     const std::string& back()
ferencd@0:     {
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(empty()))
ferencd@0:         {
ferencd@0:             JSON_THROW(detail::out_of_range::create(405, "JSON pointer has no parent"));
ferencd@0:         }
ferencd@0: 
ferencd@0:         return reference_tokens.back();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief append an unescaped token at the end of the reference pointer
ferencd@0: 
ferencd@0:     @param[in] token  token to add
ferencd@0: 
ferencd@0:     @complexity Amortized constant.
ferencd@0: 
ferencd@0:     @liveexample{The example shows the result of `push_back` for different
ferencd@0:     JSON Pointers.,json_pointer__push_back}
ferencd@0: 
ferencd@0:     @since version 3.6.0
ferencd@0:     */
ferencd@0:     void push_back(const std::string& token)
ferencd@0:     {
ferencd@0:         reference_tokens.push_back(token);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// @copydoc push_back(const std::string&)
ferencd@0:     void push_back(std::string&& token)
ferencd@0:     {
ferencd@0:         reference_tokens.push_back(std::move(token));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief return whether pointer points to the root document
ferencd@0: 
ferencd@0:     @return true iff the JSON pointer points to the root document
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this function never throws exceptions.
ferencd@0: 
ferencd@0:     @liveexample{The example shows the result of `empty` for different JSON
ferencd@0:     Pointers.,json_pointer__empty}
ferencd@0: 
ferencd@0:     @since version 3.6.0
ferencd@0:     */
ferencd@0:     bool empty() const noexcept
ferencd@0:     {
ferencd@0:         return reference_tokens.empty();
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     /*!
ferencd@0:     @param[in] s  reference token to be converted into an array index
ferencd@0: 
ferencd@0:     @return integer representation of @a s
ferencd@0: 
ferencd@0:     @throw out_of_range.404 if string @a s could not be converted to an integer
ferencd@0:     */
ferencd@0:     static int array_index(const std::string& s)
ferencd@0:     {
ferencd@0:         std::size_t processed_chars = 0;
ferencd@0:         const int res = std::stoi(s, &processed_chars);
ferencd@0: 
ferencd@0:         // check if the string was completely read
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(processed_chars != s.size()))
ferencd@0:         {
ferencd@0:             JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + s + "'"));
ferencd@0:         }
ferencd@0: 
ferencd@0:         return res;
ferencd@0:     }
ferencd@0: 
ferencd@0:     json_pointer top() const
ferencd@0:     {
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(empty()))
ferencd@0:         {
ferencd@0:             JSON_THROW(detail::out_of_range::create(405, "JSON pointer has no parent"));
ferencd@0:         }
ferencd@0: 
ferencd@0:         json_pointer result = *this;
ferencd@0:         result.reference_tokens = {reference_tokens[0]};
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief create and return a reference to the pointed to value
ferencd@0: 
ferencd@0:     @complexity Linear in the number of reference tokens.
ferencd@0: 
ferencd@0:     @throw parse_error.109 if array index is not a number
ferencd@0:     @throw type_error.313 if value cannot be unflattened
ferencd@0:     */
ferencd@0:     BasicJsonType& get_and_create(BasicJsonType& j) const
ferencd@0:     {
ferencd@0:         using size_type = typename BasicJsonType::size_type;
ferencd@0:         auto result = &j;
ferencd@0: 
ferencd@0:         // in case no reference tokens exist, return a reference to the JSON value
ferencd@0:         // j which will be overwritten by a primitive value
ferencd@0:         for (const auto& reference_token : reference_tokens)
ferencd@0:         {
ferencd@0:             switch (result->type())
ferencd@0:             {
ferencd@0:                 case detail::value_t::null:
ferencd@0:                 {
ferencd@0:                     if (reference_token == "0")
ferencd@0:                     {
ferencd@0:                         // start a new array if reference token is 0
ferencd@0:                         result = &result->operator[](0);
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                     {
ferencd@0:                         // start a new object otherwise
ferencd@0:                         result = &result->operator[](reference_token);
ferencd@0:                     }
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case detail::value_t::object:
ferencd@0:                 {
ferencd@0:                     // create an entry in the object
ferencd@0:                     result = &result->operator[](reference_token);
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case detail::value_t::array:
ferencd@0:                 {
ferencd@0:                     // create an entry in the array
ferencd@0:                     JSON_TRY
ferencd@0:                     {
ferencd@0:                         result = &result->operator[](static_cast<size_type>(array_index(reference_token)));
ferencd@0:                     }
ferencd@0:                     JSON_CATCH(std::invalid_argument&)
ferencd@0:                     {
ferencd@0:                         JSON_THROW(detail::parse_error::create(109, 0, "array index '" + reference_token + "' is not a number"));
ferencd@0:                     }
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 /*
ferencd@0:                 The following code is only reached if there exists a reference
ferencd@0:                 token _and_ the current value is primitive. In this case, we have
ferencd@0:                 an error situation, because primitive values may only occur as
ferencd@0:                 single value; that is, with an empty list of reference tokens.
ferencd@0:                 */
ferencd@0:                 default:
ferencd@0:                     JSON_THROW(detail::type_error::create(313, "invalid value to unflatten"));
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         return *result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief return a reference to the pointed to value
ferencd@0: 
ferencd@0:     @note This version does not throw if a value is not present, but tries to
ferencd@0:           create nested values instead. For instance, calling this function
ferencd@0:           with pointer `"/this/that"` on a null value is equivalent to calling
ferencd@0:           `operator[]("this").operator[]("that")` on that value, effectively
ferencd@0:           changing the null value to an object.
ferencd@0: 
ferencd@0:     @param[in] ptr  a JSON value
ferencd@0: 
ferencd@0:     @return reference to the JSON value pointed to by the JSON pointer
ferencd@0: 
ferencd@0:     @complexity Linear in the length of the JSON pointer.
ferencd@0: 
ferencd@0:     @throw parse_error.106   if an array index begins with '0'
ferencd@0:     @throw parse_error.109   if an array index was not a number
ferencd@0:     @throw out_of_range.404  if the JSON pointer can not be resolved
ferencd@0:     */
ferencd@0:     BasicJsonType& get_unchecked(BasicJsonType* ptr) const
ferencd@0:     {
ferencd@0:         using size_type = typename BasicJsonType::size_type;
ferencd@0:         for (const auto& reference_token : reference_tokens)
ferencd@0:         {
ferencd@0:             // convert null values to arrays or objects before continuing
ferencd@0:             if (ptr->is_null())
ferencd@0:             {
ferencd@0:                 // check if reference token is a number
ferencd@0:                 const bool nums =
ferencd@0:                     std::all_of(reference_token.begin(), reference_token.end(),
ferencd@0:                                 [](const unsigned char x)
ferencd@0:                 {
ferencd@0:                     return std::isdigit(x);
ferencd@0:                 });
ferencd@0: 
ferencd@0:                 // change value to array for numbers or "-" or to object otherwise
ferencd@0:                 *ptr = (nums or reference_token == "-")
ferencd@0:                        ? detail::value_t::array
ferencd@0:                        : detail::value_t::object;
ferencd@0:             }
ferencd@0: 
ferencd@0:             switch (ptr->type())
ferencd@0:             {
ferencd@0:                 case detail::value_t::object:
ferencd@0:                 {
ferencd@0:                     // use unchecked object access
ferencd@0:                     ptr = &ptr->operator[](reference_token);
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case detail::value_t::array:
ferencd@0:                 {
ferencd@0:                     // error condition (cf. RFC 6901, Sect. 4)
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(reference_token.size() > 1 and reference_token[0] == '0'))
ferencd@0:                     {
ferencd@0:                         JSON_THROW(detail::parse_error::create(106, 0,
ferencd@0:                                                                "array index '" + reference_token +
ferencd@0:                                                                "' must not begin with '0'"));
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     if (reference_token == "-")
ferencd@0:                     {
ferencd@0:                         // explicitly treat "-" as index beyond the end
ferencd@0:                         ptr = &ptr->operator[](ptr->m_value.array->size());
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                     {
ferencd@0:                         // convert array index to number; unchecked access
ferencd@0:                         JSON_TRY
ferencd@0:                         {
ferencd@0:                             ptr = &ptr->operator[](
ferencd@0:                                 static_cast<size_type>(array_index(reference_token)));
ferencd@0:                         }
ferencd@0:                         JSON_CATCH(std::invalid_argument&)
ferencd@0:                         {
ferencd@0:                             JSON_THROW(detail::parse_error::create(109, 0, "array index '" + reference_token + "' is not a number"));
ferencd@0:                         }
ferencd@0:                     }
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 default:
ferencd@0:                     JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + reference_token + "'"));
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         return *ptr;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @throw parse_error.106   if an array index begins with '0'
ferencd@0:     @throw parse_error.109   if an array index was not a number
ferencd@0:     @throw out_of_range.402  if the array index '-' is used
ferencd@0:     @throw out_of_range.404  if the JSON pointer can not be resolved
ferencd@0:     */
ferencd@0:     BasicJsonType& get_checked(BasicJsonType* ptr) const
ferencd@0:     {
ferencd@0:         using size_type = typename BasicJsonType::size_type;
ferencd@0:         for (const auto& reference_token : reference_tokens)
ferencd@0:         {
ferencd@0:             switch (ptr->type())
ferencd@0:             {
ferencd@0:                 case detail::value_t::object:
ferencd@0:                 {
ferencd@0:                     // note: at performs range check
ferencd@0:                     ptr = &ptr->at(reference_token);
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case detail::value_t::array:
ferencd@0:                 {
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(reference_token == "-"))
ferencd@0:                     {
ferencd@0:                         // "-" always fails the range check
ferencd@0:                         JSON_THROW(detail::out_of_range::create(402,
ferencd@0:                                                                 "array index '-' (" + std::to_string(ptr->m_value.array->size()) +
ferencd@0:                                                                 ") is out of range"));
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     // error condition (cf. RFC 6901, Sect. 4)
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(reference_token.size() > 1 and reference_token[0] == '0'))
ferencd@0:                     {
ferencd@0:                         JSON_THROW(detail::parse_error::create(106, 0,
ferencd@0:                                                                "array index '" + reference_token +
ferencd@0:                                                                "' must not begin with '0'"));
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     // note: at performs range check
ferencd@0:                     JSON_TRY
ferencd@0:                     {
ferencd@0:                         ptr = &ptr->at(static_cast<size_type>(array_index(reference_token)));
ferencd@0:                     }
ferencd@0:                     JSON_CATCH(std::invalid_argument&)
ferencd@0:                     {
ferencd@0:                         JSON_THROW(detail::parse_error::create(109, 0, "array index '" + reference_token + "' is not a number"));
ferencd@0:                     }
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 default:
ferencd@0:                     JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + reference_token + "'"));
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         return *ptr;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief return a const reference to the pointed to value
ferencd@0: 
ferencd@0:     @param[in] ptr  a JSON value
ferencd@0: 
ferencd@0:     @return const reference to the JSON value pointed to by the JSON
ferencd@0:     pointer
ferencd@0: 
ferencd@0:     @throw parse_error.106   if an array index begins with '0'
ferencd@0:     @throw parse_error.109   if an array index was not a number
ferencd@0:     @throw out_of_range.402  if the array index '-' is used
ferencd@0:     @throw out_of_range.404  if the JSON pointer can not be resolved
ferencd@0:     */
ferencd@0:     const BasicJsonType& get_unchecked(const BasicJsonType* ptr) const
ferencd@0:     {
ferencd@0:         using size_type = typename BasicJsonType::size_type;
ferencd@0:         for (const auto& reference_token : reference_tokens)
ferencd@0:         {
ferencd@0:             switch (ptr->type())
ferencd@0:             {
ferencd@0:                 case detail::value_t::object:
ferencd@0:                 {
ferencd@0:                     // use unchecked object access
ferencd@0:                     ptr = &ptr->operator[](reference_token);
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case detail::value_t::array:
ferencd@0:                 {
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(reference_token == "-"))
ferencd@0:                     {
ferencd@0:                         // "-" cannot be used for const access
ferencd@0:                         JSON_THROW(detail::out_of_range::create(402,
ferencd@0:                                                                 "array index '-' (" + std::to_string(ptr->m_value.array->size()) +
ferencd@0:                                                                 ") is out of range"));
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     // error condition (cf. RFC 6901, Sect. 4)
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(reference_token.size() > 1 and reference_token[0] == '0'))
ferencd@0:                     {
ferencd@0:                         JSON_THROW(detail::parse_error::create(106, 0,
ferencd@0:                                                                "array index '" + reference_token +
ferencd@0:                                                                "' must not begin with '0'"));
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     // use unchecked array access
ferencd@0:                     JSON_TRY
ferencd@0:                     {
ferencd@0:                         ptr = &ptr->operator[](
ferencd@0:                             static_cast<size_type>(array_index(reference_token)));
ferencd@0:                     }
ferencd@0:                     JSON_CATCH(std::invalid_argument&)
ferencd@0:                     {
ferencd@0:                         JSON_THROW(detail::parse_error::create(109, 0, "array index '" + reference_token + "' is not a number"));
ferencd@0:                     }
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 default:
ferencd@0:                     JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + reference_token + "'"));
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         return *ptr;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @throw parse_error.106   if an array index begins with '0'
ferencd@0:     @throw parse_error.109   if an array index was not a number
ferencd@0:     @throw out_of_range.402  if the array index '-' is used
ferencd@0:     @throw out_of_range.404  if the JSON pointer can not be resolved
ferencd@0:     */
ferencd@0:     const BasicJsonType& get_checked(const BasicJsonType* ptr) const
ferencd@0:     {
ferencd@0:         using size_type = typename BasicJsonType::size_type;
ferencd@0:         for (const auto& reference_token : reference_tokens)
ferencd@0:         {
ferencd@0:             switch (ptr->type())
ferencd@0:             {
ferencd@0:                 case detail::value_t::object:
ferencd@0:                 {
ferencd@0:                     // note: at performs range check
ferencd@0:                     ptr = &ptr->at(reference_token);
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case detail::value_t::array:
ferencd@0:                 {
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(reference_token == "-"))
ferencd@0:                     {
ferencd@0:                         // "-" always fails the range check
ferencd@0:                         JSON_THROW(detail::out_of_range::create(402,
ferencd@0:                                                                 "array index '-' (" + std::to_string(ptr->m_value.array->size()) +
ferencd@0:                                                                 ") is out of range"));
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     // error condition (cf. RFC 6901, Sect. 4)
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(reference_token.size() > 1 and reference_token[0] == '0'))
ferencd@0:                     {
ferencd@0:                         JSON_THROW(detail::parse_error::create(106, 0,
ferencd@0:                                                                "array index '" + reference_token +
ferencd@0:                                                                "' must not begin with '0'"));
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     // note: at performs range check
ferencd@0:                     JSON_TRY
ferencd@0:                     {
ferencd@0:                         ptr = &ptr->at(static_cast<size_type>(array_index(reference_token)));
ferencd@0:                     }
ferencd@0:                     JSON_CATCH(std::invalid_argument&)
ferencd@0:                     {
ferencd@0:                         JSON_THROW(detail::parse_error::create(109, 0, "array index '" + reference_token + "' is not a number"));
ferencd@0:                     }
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 default:
ferencd@0:                     JSON_THROW(detail::out_of_range::create(404, "unresolved reference token '" + reference_token + "'"));
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         return *ptr;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @throw parse_error.106   if an array index begins with '0'
ferencd@0:     @throw parse_error.109   if an array index was not a number
ferencd@0:     */
ferencd@0:     bool contains(const BasicJsonType* ptr) const
ferencd@0:     {
ferencd@0:         using size_type = typename BasicJsonType::size_type;
ferencd@0:         for (const auto& reference_token : reference_tokens)
ferencd@0:         {
ferencd@0:             switch (ptr->type())
ferencd@0:             {
ferencd@0:                 case detail::value_t::object:
ferencd@0:                 {
ferencd@0:                     if (not ptr->contains(reference_token))
ferencd@0:                     {
ferencd@0:                         // we did not find the key in the object
ferencd@0:                         return false;
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     ptr = &ptr->operator[](reference_token);
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case detail::value_t::array:
ferencd@0:                 {
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(reference_token == "-"))
ferencd@0:                     {
ferencd@0:                         // "-" always fails the range check
ferencd@0:                         return false;
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     // error condition (cf. RFC 6901, Sect. 4)
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(reference_token.size() > 1 and reference_token[0] == '0'))
ferencd@0:                     {
ferencd@0:                         JSON_THROW(detail::parse_error::create(106, 0,
ferencd@0:                                                                "array index '" + reference_token +
ferencd@0:                                                                "' must not begin with '0'"));
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     JSON_TRY
ferencd@0:                     {
ferencd@0:                         const auto idx = static_cast<size_type>(array_index(reference_token));
ferencd@0:                         if (idx >= ptr->size())
ferencd@0:                         {
ferencd@0:                             // index out of range
ferencd@0:                             return false;
ferencd@0:                         }
ferencd@0: 
ferencd@0:                         ptr = &ptr->operator[](idx);
ferencd@0:                         break;
ferencd@0:                     }
ferencd@0:                     JSON_CATCH(std::invalid_argument&)
ferencd@0:                     {
ferencd@0:                         JSON_THROW(detail::parse_error::create(109, 0, "array index '" + reference_token + "' is not a number"));
ferencd@0:                     }
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 default:
ferencd@0:                 {
ferencd@0:                     // we do not expect primitive values if there is still a
ferencd@0:                     // reference token to process
ferencd@0:                     return false;
ferencd@0:                 }
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         // no reference token left means we found a primitive value
ferencd@0:         return true;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief split the string input to reference tokens
ferencd@0: 
ferencd@0:     @note This function is only called by the json_pointer constructor.
ferencd@0:           All exceptions below are documented there.
ferencd@0: 
ferencd@0:     @throw parse_error.107  if the pointer is not empty or begins with '/'
ferencd@0:     @throw parse_error.108  if character '~' is not followed by '0' or '1'
ferencd@0:     */
ferencd@0:     static std::vector<std::string> split(const std::string& reference_string)
ferencd@0:     {
ferencd@0:         std::vector<std::string> result;
ferencd@0: 
ferencd@0:         // special case: empty reference string -> no reference tokens
ferencd@0:         if (reference_string.empty())
ferencd@0:         {
ferencd@0:             return result;
ferencd@0:         }
ferencd@0: 
ferencd@0:         // check if nonempty reference string begins with slash
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(reference_string[0] != '/'))
ferencd@0:         {
ferencd@0:             JSON_THROW(detail::parse_error::create(107, 1,
ferencd@0:                                                    "JSON pointer must be empty or begin with '/' - was: '" +
ferencd@0:                                                    reference_string + "'"));
ferencd@0:         }
ferencd@0: 
ferencd@0:         // extract the reference tokens:
ferencd@0:         // - slash: position of the last read slash (or end of string)
ferencd@0:         // - start: position after the previous slash
ferencd@0:         for (
ferencd@0:             // search for the first slash after the first character
ferencd@0:             std::size_t slash = reference_string.find_first_of('/', 1),
ferencd@0:             // set the beginning of the first reference token
ferencd@0:             start = 1;
ferencd@0:             // we can stop if start == 0 (if slash == std::string::npos)
ferencd@0:             start != 0;
ferencd@0:             // set the beginning of the next reference token
ferencd@0:             // (will eventually be 0 if slash == std::string::npos)
ferencd@0:             start = (slash == std::string::npos) ? 0 : slash + 1,
ferencd@0:             // find next slash
ferencd@0:             slash = reference_string.find_first_of('/', start))
ferencd@0:         {
ferencd@0:             // use the text between the beginning of the reference token
ferencd@0:             // (start) and the last slash (slash).
ferencd@0:             auto reference_token = reference_string.substr(start, slash - start);
ferencd@0: 
ferencd@0:             // check reference tokens are properly escaped
ferencd@0:             for (std::size_t pos = reference_token.find_first_of('~');
ferencd@0:                     pos != std::string::npos;
ferencd@0:                     pos = reference_token.find_first_of('~', pos + 1))
ferencd@0:             {
ferencd@0:                 assert(reference_token[pos] == '~');
ferencd@0: 
ferencd@0:                 // ~ must be followed by 0 or 1
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(pos == reference_token.size() - 1 or
ferencd@0:                                          (reference_token[pos + 1] != '0' and
ferencd@0:                                           reference_token[pos + 1] != '1')))
ferencd@0:                 {
ferencd@0:                     JSON_THROW(detail::parse_error::create(108, 0, "escape character '~' must be followed with '0' or '1'"));
ferencd@0:                 }
ferencd@0:             }
ferencd@0: 
ferencd@0:             // finally, store the reference token
ferencd@0:             unescape(reference_token);
ferencd@0:             result.push_back(reference_token);
ferencd@0:         }
ferencd@0: 
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief replace all occurrences of a substring by another string
ferencd@0: 
ferencd@0:     @param[in,out] s  the string to manipulate; changed so that all
ferencd@0:                    occurrences of @a f are replaced with @a t
ferencd@0:     @param[in]     f  the substring to replace with @a t
ferencd@0:     @param[in]     t  the string to replace @a f
ferencd@0: 
ferencd@0:     @pre The search string @a f must not be empty. **This precondition is
ferencd@0:     enforced with an assertion.**
ferencd@0: 
ferencd@0:     @since version 2.0.0
ferencd@0:     */
ferencd@0:     static void replace_substring(std::string& s, const std::string& f,
ferencd@0:                                   const std::string& t)
ferencd@0:     {
ferencd@0:         assert(not f.empty());
ferencd@0:         for (auto pos = s.find(f);                // find first occurrence of f
ferencd@0:                 pos != std::string::npos;         // make sure f was found
ferencd@0:                 s.replace(pos, f.size(), t),      // replace with t, and
ferencd@0:                 pos = s.find(f, pos + t.size()))  // find next occurrence of f
ferencd@0:         {}
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// escape "~" to "~0" and "/" to "~1"
ferencd@0:     static std::string escape(std::string s)
ferencd@0:     {
ferencd@0:         replace_substring(s, "~", "~0");
ferencd@0:         replace_substring(s, "/", "~1");
ferencd@0:         return s;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// unescape "~1" to tilde and "~0" to slash (order is important!)
ferencd@0:     static void unescape(std::string& s)
ferencd@0:     {
ferencd@0:         replace_substring(s, "~1", "/");
ferencd@0:         replace_substring(s, "~0", "~");
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @param[in] reference_string  the reference string to the current value
ferencd@0:     @param[in] value             the value to consider
ferencd@0:     @param[in,out] result        the result object to insert values to
ferencd@0: 
ferencd@0:     @note Empty objects or arrays are flattened to `null`.
ferencd@0:     */
ferencd@0:     static void flatten(const std::string& reference_string,
ferencd@0:                         const BasicJsonType& value,
ferencd@0:                         BasicJsonType& result)
ferencd@0:     {
ferencd@0:         switch (value.type())
ferencd@0:         {
ferencd@0:             case detail::value_t::array:
ferencd@0:             {
ferencd@0:                 if (value.m_value.array->empty())
ferencd@0:                 {
ferencd@0:                     // flatten empty array as null
ferencd@0:                     result[reference_string] = nullptr;
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     // iterate array and use index as reference string
ferencd@0:                     for (std::size_t i = 0; i < value.m_value.array->size(); ++i)
ferencd@0:                     {
ferencd@0:                         flatten(reference_string + "/" + std::to_string(i),
ferencd@0:                                 value.m_value.array->operator[](i), result);
ferencd@0:                     }
ferencd@0:                 }
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case detail::value_t::object:
ferencd@0:             {
ferencd@0:                 if (value.m_value.object->empty())
ferencd@0:                 {
ferencd@0:                     // flatten empty object as null
ferencd@0:                     result[reference_string] = nullptr;
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     // iterate object and use keys as reference string
ferencd@0:                     for (const auto& element : *value.m_value.object)
ferencd@0:                     {
ferencd@0:                         flatten(reference_string + "/" + escape(element.first), element.second, result);
ferencd@0:                     }
ferencd@0:                 }
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 // add primitive value with its reference string
ferencd@0:                 result[reference_string] = value;
ferencd@0:                 break;
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @param[in] value  flattened JSON
ferencd@0: 
ferencd@0:     @return unflattened JSON
ferencd@0: 
ferencd@0:     @throw parse_error.109 if array index is not a number
ferencd@0:     @throw type_error.314  if value is not an object
ferencd@0:     @throw type_error.315  if object values are not primitive
ferencd@0:     @throw type_error.313  if value cannot be unflattened
ferencd@0:     */
ferencd@0:     static BasicJsonType
ferencd@0:     unflatten(const BasicJsonType& value)
ferencd@0:     {
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not value.is_object()))
ferencd@0:         {
ferencd@0:             JSON_THROW(detail::type_error::create(314, "only objects can be unflattened"));
ferencd@0:         }
ferencd@0: 
ferencd@0:         BasicJsonType result;
ferencd@0: 
ferencd@0:         // iterate the JSON object values
ferencd@0:         for (const auto& element : *value.m_value.object)
ferencd@0:         {
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(not element.second.is_primitive()))
ferencd@0:             {
ferencd@0:                 JSON_THROW(detail::type_error::create(315, "values in object must be primitive"));
ferencd@0:             }
ferencd@0: 
ferencd@0:             // assign value to reference pointed to by JSON pointer; Note that if
ferencd@0:             // the JSON pointer is "" (i.e., points to the whole value), function
ferencd@0:             // get_and_create returns a reference to result itself. An assignment
ferencd@0:             // will then create a primitive value.
ferencd@0:             json_pointer(element.first).get_and_create(result) = element.second;
ferencd@0:         }
ferencd@0: 
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief compares two JSON pointers for equality
ferencd@0: 
ferencd@0:     @param[in] lhs  JSON pointer to compare
ferencd@0:     @param[in] rhs  JSON pointer to compare
ferencd@0:     @return whether @a lhs is equal to @a rhs
ferencd@0: 
ferencd@0:     @complexity Linear in the length of the JSON pointer
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this function never throws exceptions.
ferencd@0:     */
ferencd@0:     friend bool operator==(json_pointer const& lhs,
ferencd@0:                            json_pointer const& rhs) noexcept
ferencd@0:     {
ferencd@0:         return lhs.reference_tokens == rhs.reference_tokens;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief compares two JSON pointers for inequality
ferencd@0: 
ferencd@0:     @param[in] lhs  JSON pointer to compare
ferencd@0:     @param[in] rhs  JSON pointer to compare
ferencd@0:     @return whether @a lhs is not equal @a rhs
ferencd@0: 
ferencd@0:     @complexity Linear in the length of the JSON pointer
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this function never throws exceptions.
ferencd@0:     */
ferencd@0:     friend bool operator!=(json_pointer const& lhs,
ferencd@0:                            json_pointer const& rhs) noexcept
ferencd@0:     {
ferencd@0:         return not (lhs == rhs);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// the reference tokens
ferencd@0:     std::vector<std::string> reference_tokens;
ferencd@0: };
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/json_ref.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <initializer_list>
ferencd@0: #include <utility>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/meta/type_traits.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: template<typename BasicJsonType>
ferencd@0: class json_ref
ferencd@0: {
ferencd@0:   public:
ferencd@0:     using value_type = BasicJsonType;
ferencd@0: 
ferencd@0:     json_ref(value_type&& value)
ferencd@0:         : owned_value(std::move(value)), value_ref(&owned_value), is_rvalue(true)
ferencd@0:     {}
ferencd@0: 
ferencd@0:     json_ref(const value_type& value)
ferencd@0:         : value_ref(const_cast<value_type*>(&value)), is_rvalue(false)
ferencd@0:     {}
ferencd@0: 
ferencd@0:     json_ref(std::initializer_list<json_ref> init)
ferencd@0:         : owned_value(init), value_ref(&owned_value), is_rvalue(true)
ferencd@0:     {}
ferencd@0: 
ferencd@0:     template <
ferencd@0:         class... Args,
ferencd@0:         enable_if_t<std::is_constructible<value_type, Args...>::value, int> = 0 >
ferencd@0:     json_ref(Args && ... args)
ferencd@0:         : owned_value(std::forward<Args>(args)...), value_ref(&owned_value),
ferencd@0:           is_rvalue(true) {}
ferencd@0: 
ferencd@0:     // class should be movable only
ferencd@0:     json_ref(json_ref&&) = default;
ferencd@0:     json_ref(const json_ref&) = delete;
ferencd@0:     json_ref& operator=(const json_ref&) = delete;
ferencd@0:     json_ref& operator=(json_ref&&) = delete;
ferencd@0:     ~json_ref() = default;
ferencd@0: 
ferencd@0:     value_type moved_or_copied() const
ferencd@0:     {
ferencd@0:         if (is_rvalue)
ferencd@0:         {
ferencd@0:             return std::move(*value_ref);
ferencd@0:         }
ferencd@0:         return *value_ref;
ferencd@0:     }
ferencd@0: 
ferencd@0:     value_type const& operator*() const
ferencd@0:     {
ferencd@0:         return *static_cast<value_type const*>(value_ref);
ferencd@0:     }
ferencd@0: 
ferencd@0:     value_type const* operator->() const
ferencd@0:     {
ferencd@0:         return static_cast<value_type const*>(value_ref);
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     mutable value_type owned_value = nullptr;
ferencd@0:     value_type* value_ref = nullptr;
ferencd@0:     const bool is_rvalue;
ferencd@0: };
ferencd@0: }  // namespace detail
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/macro_scope.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/meta/cpp_future.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/meta/type_traits.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/output/binary_writer.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <algorithm> // reverse
ferencd@0: #include <array> // array
ferencd@0: #include <cstdint> // uint8_t, uint16_t, uint32_t, uint64_t
ferencd@0: #include <cstring> // memcpy
ferencd@0: #include <limits> // numeric_limits
ferencd@0: #include <string> // string
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/input/binary_reader.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/macro_scope.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/output/output_adapters.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <algorithm> // copy
ferencd@0: #include <cstddef> // size_t
ferencd@0: #include <ios> // streamsize
ferencd@0: #include <iterator> // back_inserter
ferencd@0: #include <memory> // shared_ptr, make_shared
ferencd@0: #include <ostream> // basic_ostream
ferencd@0: #include <string> // basic_string
ferencd@0: #include <vector> // vector
ferencd@0: // #include <nlohmann/detail/macro_scope.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: /// abstract output adapter interface
ferencd@0: template<typename CharType> struct output_adapter_protocol
ferencd@0: {
ferencd@0:     virtual void write_character(CharType c) = 0;
ferencd@0:     virtual void write_characters(const CharType* s, std::size_t length) = 0;
ferencd@0:     virtual ~output_adapter_protocol() = default;
ferencd@0: };
ferencd@0: 
ferencd@0: /// a type to simplify interfaces
ferencd@0: template<typename CharType>
ferencd@0: using output_adapter_t = std::shared_ptr<output_adapter_protocol<CharType>>;
ferencd@0: 
ferencd@0: /// output adapter for byte vectors
ferencd@0: template<typename CharType>
ferencd@0: class output_vector_adapter : public output_adapter_protocol<CharType>
ferencd@0: {
ferencd@0:   public:
ferencd@0:     explicit output_vector_adapter(std::vector<CharType>& vec) noexcept
ferencd@0:         : v(vec)
ferencd@0:     {}
ferencd@0: 
ferencd@0:     void write_character(CharType c) override
ferencd@0:     {
ferencd@0:         v.push_back(c);
ferencd@0:     }
ferencd@0: 
ferencd@0:     JSON_HEDLEY_NON_NULL(2)
ferencd@0:     void write_characters(const CharType* s, std::size_t length) override
ferencd@0:     {
ferencd@0:         std::copy(s, s + length, std::back_inserter(v));
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     std::vector<CharType>& v;
ferencd@0: };
ferencd@0: 
ferencd@0: /// output adapter for output streams
ferencd@0: template<typename CharType>
ferencd@0: class output_stream_adapter : public output_adapter_protocol<CharType>
ferencd@0: {
ferencd@0:   public:
ferencd@0:     explicit output_stream_adapter(std::basic_ostream<CharType>& s) noexcept
ferencd@0:         : stream(s)
ferencd@0:     {}
ferencd@0: 
ferencd@0:     void write_character(CharType c) override
ferencd@0:     {
ferencd@0:         stream.put(c);
ferencd@0:     }
ferencd@0: 
ferencd@0:     JSON_HEDLEY_NON_NULL(2)
ferencd@0:     void write_characters(const CharType* s, std::size_t length) override
ferencd@0:     {
ferencd@0:         stream.write(s, static_cast<std::streamsize>(length));
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     std::basic_ostream<CharType>& stream;
ferencd@0: };
ferencd@0: 
ferencd@0: /// output adapter for basic_string
ferencd@0: template<typename CharType, typename StringType = std::basic_string<CharType>>
ferencd@0: class output_string_adapter : public output_adapter_protocol<CharType>
ferencd@0: {
ferencd@0:   public:
ferencd@0:     explicit output_string_adapter(StringType& s) noexcept
ferencd@0:         : str(s)
ferencd@0:     {}
ferencd@0: 
ferencd@0:     void write_character(CharType c) override
ferencd@0:     {
ferencd@0:         str.push_back(c);
ferencd@0:     }
ferencd@0: 
ferencd@0:     JSON_HEDLEY_NON_NULL(2)
ferencd@0:     void write_characters(const CharType* s, std::size_t length) override
ferencd@0:     {
ferencd@0:         str.append(s, length);
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     StringType& str;
ferencd@0: };
ferencd@0: 
ferencd@0: template<typename CharType, typename StringType = std::basic_string<CharType>>
ferencd@0: class output_adapter
ferencd@0: {
ferencd@0:   public:
ferencd@0:     output_adapter(std::vector<CharType>& vec)
ferencd@0:         : oa(std::make_shared<output_vector_adapter<CharType>>(vec)) {}
ferencd@0: 
ferencd@0:     output_adapter(std::basic_ostream<CharType>& s)
ferencd@0:         : oa(std::make_shared<output_stream_adapter<CharType>>(s)) {}
ferencd@0: 
ferencd@0:     output_adapter(StringType& s)
ferencd@0:         : oa(std::make_shared<output_string_adapter<CharType, StringType>>(s)) {}
ferencd@0: 
ferencd@0:     operator output_adapter_t<CharType>()
ferencd@0:     {
ferencd@0:         return oa;
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     output_adapter_t<CharType> oa = nullptr;
ferencd@0: };
ferencd@0: }  // namespace detail
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: ///////////////////
ferencd@0: // binary writer //
ferencd@0: ///////////////////
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief serialization to CBOR and MessagePack values
ferencd@0: */
ferencd@0: template<typename BasicJsonType, typename CharType>
ferencd@0: class binary_writer
ferencd@0: {
ferencd@0:     using string_t = typename BasicJsonType::string_t;
ferencd@0: 
ferencd@0:   public:
ferencd@0:     /*!
ferencd@0:     @brief create a binary writer
ferencd@0: 
ferencd@0:     @param[in] adapter  output adapter to write to
ferencd@0:     */
ferencd@0:     explicit binary_writer(output_adapter_t<CharType> adapter) : oa(adapter)
ferencd@0:     {
ferencd@0:         assert(oa);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @param[in] j  JSON value to serialize
ferencd@0:     @pre       j.type() == value_t::object
ferencd@0:     */
ferencd@0:     void write_bson(const BasicJsonType& j)
ferencd@0:     {
ferencd@0:         switch (j.type())
ferencd@0:         {
ferencd@0:             case value_t::object:
ferencd@0:             {
ferencd@0:                 write_bson_object(*j.m_value.object);
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 JSON_THROW(type_error::create(317, "to serialize to BSON, top-level type must be object, but is " + std::string(j.type_name())));
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @param[in] j  JSON value to serialize
ferencd@0:     */
ferencd@0:     void write_cbor(const BasicJsonType& j)
ferencd@0:     {
ferencd@0:         switch (j.type())
ferencd@0:         {
ferencd@0:             case value_t::null:
ferencd@0:             {
ferencd@0:                 oa->write_character(to_char_type(0xF6));
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::boolean:
ferencd@0:             {
ferencd@0:                 oa->write_character(j.m_value.boolean
ferencd@0:                                     ? to_char_type(0xF5)
ferencd@0:                                     : to_char_type(0xF4));
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::number_integer:
ferencd@0:             {
ferencd@0:                 if (j.m_value.number_integer >= 0)
ferencd@0:                 {
ferencd@0:                     // CBOR does not differentiate between positive signed
ferencd@0:                     // integers and unsigned integers. Therefore, we used the
ferencd@0:                     // code from the value_t::number_unsigned case here.
ferencd@0:                     if (j.m_value.number_integer <= 0x17)
ferencd@0:                     {
ferencd@0:                         write_number(static_cast<std::uint8_t>(j.m_value.number_integer));
ferencd@0:                     }
ferencd@0:                     else if (j.m_value.number_integer <= (std::numeric_limits<std::uint8_t>::max)())
ferencd@0:                     {
ferencd@0:                         oa->write_character(to_char_type(0x18));
ferencd@0:                         write_number(static_cast<std::uint8_t>(j.m_value.number_integer));
ferencd@0:                     }
ferencd@0:                     else if (j.m_value.number_integer <= (std::numeric_limits<std::uint16_t>::max)())
ferencd@0:                     {
ferencd@0:                         oa->write_character(to_char_type(0x19));
ferencd@0:                         write_number(static_cast<std::uint16_t>(j.m_value.number_integer));
ferencd@0:                     }
ferencd@0:                     else if (j.m_value.number_integer <= (std::numeric_limits<std::uint32_t>::max)())
ferencd@0:                     {
ferencd@0:                         oa->write_character(to_char_type(0x1A));
ferencd@0:                         write_number(static_cast<std::uint32_t>(j.m_value.number_integer));
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                     {
ferencd@0:                         oa->write_character(to_char_type(0x1B));
ferencd@0:                         write_number(static_cast<std::uint64_t>(j.m_value.number_integer));
ferencd@0:                     }
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     // The conversions below encode the sign in the first
ferencd@0:                     // byte, and the value is converted to a positive number.
ferencd@0:                     const auto positive_number = -1 - j.m_value.number_integer;
ferencd@0:                     if (j.m_value.number_integer >= -24)
ferencd@0:                     {
ferencd@0:                         write_number(static_cast<std::uint8_t>(0x20 + positive_number));
ferencd@0:                     }
ferencd@0:                     else if (positive_number <= (std::numeric_limits<std::uint8_t>::max)())
ferencd@0:                     {
ferencd@0:                         oa->write_character(to_char_type(0x38));
ferencd@0:                         write_number(static_cast<std::uint8_t>(positive_number));
ferencd@0:                     }
ferencd@0:                     else if (positive_number <= (std::numeric_limits<std::uint16_t>::max)())
ferencd@0:                     {
ferencd@0:                         oa->write_character(to_char_type(0x39));
ferencd@0:                         write_number(static_cast<std::uint16_t>(positive_number));
ferencd@0:                     }
ferencd@0:                     else if (positive_number <= (std::numeric_limits<std::uint32_t>::max)())
ferencd@0:                     {
ferencd@0:                         oa->write_character(to_char_type(0x3A));
ferencd@0:                         write_number(static_cast<std::uint32_t>(positive_number));
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                     {
ferencd@0:                         oa->write_character(to_char_type(0x3B));
ferencd@0:                         write_number(static_cast<std::uint64_t>(positive_number));
ferencd@0:                     }
ferencd@0:                 }
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::number_unsigned:
ferencd@0:             {
ferencd@0:                 if (j.m_value.number_unsigned <= 0x17)
ferencd@0:                 {
ferencd@0:                     write_number(static_cast<std::uint8_t>(j.m_value.number_unsigned));
ferencd@0:                 }
ferencd@0:                 else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint8_t>::max)())
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type(0x18));
ferencd@0:                     write_number(static_cast<std::uint8_t>(j.m_value.number_unsigned));
ferencd@0:                 }
ferencd@0:                 else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint16_t>::max)())
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type(0x19));
ferencd@0:                     write_number(static_cast<std::uint16_t>(j.m_value.number_unsigned));
ferencd@0:                 }
ferencd@0:                 else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint32_t>::max)())
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type(0x1A));
ferencd@0:                     write_number(static_cast<std::uint32_t>(j.m_value.number_unsigned));
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type(0x1B));
ferencd@0:                     write_number(static_cast<std::uint64_t>(j.m_value.number_unsigned));
ferencd@0:                 }
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::number_float:
ferencd@0:             {
ferencd@0:                 oa->write_character(get_cbor_float_prefix(j.m_value.number_float));
ferencd@0:                 write_number(j.m_value.number_float);
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::string:
ferencd@0:             {
ferencd@0:                 // step 1: write control byte and the string length
ferencd@0:                 const auto N = j.m_value.string->size();
ferencd@0:                 if (N <= 0x17)
ferencd@0:                 {
ferencd@0:                     write_number(static_cast<std::uint8_t>(0x60 + N));
ferencd@0:                 }
ferencd@0:                 else if (N <= (std::numeric_limits<std::uint8_t>::max)())
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type(0x78));
ferencd@0:                     write_number(static_cast<std::uint8_t>(N));
ferencd@0:                 }
ferencd@0:                 else if (N <= (std::numeric_limits<std::uint16_t>::max)())
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type(0x79));
ferencd@0:                     write_number(static_cast<std::uint16_t>(N));
ferencd@0:                 }
ferencd@0:                 else if (N <= (std::numeric_limits<std::uint32_t>::max)())
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type(0x7A));
ferencd@0:                     write_number(static_cast<std::uint32_t>(N));
ferencd@0:                 }
ferencd@0:                 // LCOV_EXCL_START
ferencd@0:                 else if (N <= (std::numeric_limits<std::uint64_t>::max)())
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type(0x7B));
ferencd@0:                     write_number(static_cast<std::uint64_t>(N));
ferencd@0:                 }
ferencd@0:                 // LCOV_EXCL_STOP
ferencd@0: 
ferencd@0:                 // step 2: write the string
ferencd@0:                 oa->write_characters(
ferencd@0:                     reinterpret_cast<const CharType*>(j.m_value.string->c_str()),
ferencd@0:                     j.m_value.string->size());
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 // step 1: write control byte and the array size
ferencd@0:                 const auto N = j.m_value.array->size();
ferencd@0:                 if (N <= 0x17)
ferencd@0:                 {
ferencd@0:                     write_number(static_cast<std::uint8_t>(0x80 + N));
ferencd@0:                 }
ferencd@0:                 else if (N <= (std::numeric_limits<std::uint8_t>::max)())
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type(0x98));
ferencd@0:                     write_number(static_cast<std::uint8_t>(N));
ferencd@0:                 }
ferencd@0:                 else if (N <= (std::numeric_limits<std::uint16_t>::max)())
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type(0x99));
ferencd@0:                     write_number(static_cast<std::uint16_t>(N));
ferencd@0:                 }
ferencd@0:                 else if (N <= (std::numeric_limits<std::uint32_t>::max)())
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type(0x9A));
ferencd@0:                     write_number(static_cast<std::uint32_t>(N));
ferencd@0:                 }
ferencd@0:                 // LCOV_EXCL_START
ferencd@0:                 else if (N <= (std::numeric_limits<std::uint64_t>::max)())
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type(0x9B));
ferencd@0:                     write_number(static_cast<std::uint64_t>(N));
ferencd@0:                 }
ferencd@0:                 // LCOV_EXCL_STOP
ferencd@0: 
ferencd@0:                 // step 2: write each element
ferencd@0:                 for (const auto& el : *j.m_value.array)
ferencd@0:                 {
ferencd@0:                     write_cbor(el);
ferencd@0:                 }
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::object:
ferencd@0:             {
ferencd@0:                 // step 1: write control byte and the object size
ferencd@0:                 const auto N = j.m_value.object->size();
ferencd@0:                 if (N <= 0x17)
ferencd@0:                 {
ferencd@0:                     write_number(static_cast<std::uint8_t>(0xA0 + N));
ferencd@0:                 }
ferencd@0:                 else if (N <= (std::numeric_limits<std::uint8_t>::max)())
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type(0xB8));
ferencd@0:                     write_number(static_cast<std::uint8_t>(N));
ferencd@0:                 }
ferencd@0:                 else if (N <= (std::numeric_limits<std::uint16_t>::max)())
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type(0xB9));
ferencd@0:                     write_number(static_cast<std::uint16_t>(N));
ferencd@0:                 }
ferencd@0:                 else if (N <= (std::numeric_limits<std::uint32_t>::max)())
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type(0xBA));
ferencd@0:                     write_number(static_cast<std::uint32_t>(N));
ferencd@0:                 }
ferencd@0:                 // LCOV_EXCL_START
ferencd@0:                 else if (N <= (std::numeric_limits<std::uint64_t>::max)())
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type(0xBB));
ferencd@0:                     write_number(static_cast<std::uint64_t>(N));
ferencd@0:                 }
ferencd@0:                 // LCOV_EXCL_STOP
ferencd@0: 
ferencd@0:                 // step 2: write each element
ferencd@0:                 for (const auto& el : *j.m_value.object)
ferencd@0:                 {
ferencd@0:                     write_cbor(el.first);
ferencd@0:                     write_cbor(el.second);
ferencd@0:                 }
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:                 break;
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @param[in] j  JSON value to serialize
ferencd@0:     */
ferencd@0:     void write_msgpack(const BasicJsonType& j)
ferencd@0:     {
ferencd@0:         switch (j.type())
ferencd@0:         {
ferencd@0:             case value_t::null: // nil
ferencd@0:             {
ferencd@0:                 oa->write_character(to_char_type(0xC0));
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::boolean: // true and false
ferencd@0:             {
ferencd@0:                 oa->write_character(j.m_value.boolean
ferencd@0:                                     ? to_char_type(0xC3)
ferencd@0:                                     : to_char_type(0xC2));
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::number_integer:
ferencd@0:             {
ferencd@0:                 if (j.m_value.number_integer >= 0)
ferencd@0:                 {
ferencd@0:                     // MessagePack does not differentiate between positive
ferencd@0:                     // signed integers and unsigned integers. Therefore, we used
ferencd@0:                     // the code from the value_t::number_unsigned case here.
ferencd@0:                     if (j.m_value.number_unsigned < 128)
ferencd@0:                     {
ferencd@0:                         // positive fixnum
ferencd@0:                         write_number(static_cast<std::uint8_t>(j.m_value.number_integer));
ferencd@0:                     }
ferencd@0:                     else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint8_t>::max)())
ferencd@0:                     {
ferencd@0:                         // uint 8
ferencd@0:                         oa->write_character(to_char_type(0xCC));
ferencd@0:                         write_number(static_cast<std::uint8_t>(j.m_value.number_integer));
ferencd@0:                     }
ferencd@0:                     else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint16_t>::max)())
ferencd@0:                     {
ferencd@0:                         // uint 16
ferencd@0:                         oa->write_character(to_char_type(0xCD));
ferencd@0:                         write_number(static_cast<std::uint16_t>(j.m_value.number_integer));
ferencd@0:                     }
ferencd@0:                     else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint32_t>::max)())
ferencd@0:                     {
ferencd@0:                         // uint 32
ferencd@0:                         oa->write_character(to_char_type(0xCE));
ferencd@0:                         write_number(static_cast<std::uint32_t>(j.m_value.number_integer));
ferencd@0:                     }
ferencd@0:                     else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint64_t>::max)())
ferencd@0:                     {
ferencd@0:                         // uint 64
ferencd@0:                         oa->write_character(to_char_type(0xCF));
ferencd@0:                         write_number(static_cast<std::uint64_t>(j.m_value.number_integer));
ferencd@0:                     }
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     if (j.m_value.number_integer >= -32)
ferencd@0:                     {
ferencd@0:                         // negative fixnum
ferencd@0:                         write_number(static_cast<std::int8_t>(j.m_value.number_integer));
ferencd@0:                     }
ferencd@0:                     else if (j.m_value.number_integer >= (std::numeric_limits<std::int8_t>::min)() and
ferencd@0:                              j.m_value.number_integer <= (std::numeric_limits<std::int8_t>::max)())
ferencd@0:                     {
ferencd@0:                         // int 8
ferencd@0:                         oa->write_character(to_char_type(0xD0));
ferencd@0:                         write_number(static_cast<std::int8_t>(j.m_value.number_integer));
ferencd@0:                     }
ferencd@0:                     else if (j.m_value.number_integer >= (std::numeric_limits<std::int16_t>::min)() and
ferencd@0:                              j.m_value.number_integer <= (std::numeric_limits<std::int16_t>::max)())
ferencd@0:                     {
ferencd@0:                         // int 16
ferencd@0:                         oa->write_character(to_char_type(0xD1));
ferencd@0:                         write_number(static_cast<std::int16_t>(j.m_value.number_integer));
ferencd@0:                     }
ferencd@0:                     else if (j.m_value.number_integer >= (std::numeric_limits<std::int32_t>::min)() and
ferencd@0:                              j.m_value.number_integer <= (std::numeric_limits<std::int32_t>::max)())
ferencd@0:                     {
ferencd@0:                         // int 32
ferencd@0:                         oa->write_character(to_char_type(0xD2));
ferencd@0:                         write_number(static_cast<std::int32_t>(j.m_value.number_integer));
ferencd@0:                     }
ferencd@0:                     else if (j.m_value.number_integer >= (std::numeric_limits<std::int64_t>::min)() and
ferencd@0:                              j.m_value.number_integer <= (std::numeric_limits<std::int64_t>::max)())
ferencd@0:                     {
ferencd@0:                         // int 64
ferencd@0:                         oa->write_character(to_char_type(0xD3));
ferencd@0:                         write_number(static_cast<std::int64_t>(j.m_value.number_integer));
ferencd@0:                     }
ferencd@0:                 }
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::number_unsigned:
ferencd@0:             {
ferencd@0:                 if (j.m_value.number_unsigned < 128)
ferencd@0:                 {
ferencd@0:                     // positive fixnum
ferencd@0:                     write_number(static_cast<std::uint8_t>(j.m_value.number_integer));
ferencd@0:                 }
ferencd@0:                 else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint8_t>::max)())
ferencd@0:                 {
ferencd@0:                     // uint 8
ferencd@0:                     oa->write_character(to_char_type(0xCC));
ferencd@0:                     write_number(static_cast<std::uint8_t>(j.m_value.number_integer));
ferencd@0:                 }
ferencd@0:                 else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint16_t>::max)())
ferencd@0:                 {
ferencd@0:                     // uint 16
ferencd@0:                     oa->write_character(to_char_type(0xCD));
ferencd@0:                     write_number(static_cast<std::uint16_t>(j.m_value.number_integer));
ferencd@0:                 }
ferencd@0:                 else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint32_t>::max)())
ferencd@0:                 {
ferencd@0:                     // uint 32
ferencd@0:                     oa->write_character(to_char_type(0xCE));
ferencd@0:                     write_number(static_cast<std::uint32_t>(j.m_value.number_integer));
ferencd@0:                 }
ferencd@0:                 else if (j.m_value.number_unsigned <= (std::numeric_limits<std::uint64_t>::max)())
ferencd@0:                 {
ferencd@0:                     // uint 64
ferencd@0:                     oa->write_character(to_char_type(0xCF));
ferencd@0:                     write_number(static_cast<std::uint64_t>(j.m_value.number_integer));
ferencd@0:                 }
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::number_float:
ferencd@0:             {
ferencd@0:                 oa->write_character(get_msgpack_float_prefix(j.m_value.number_float));
ferencd@0:                 write_number(j.m_value.number_float);
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::string:
ferencd@0:             {
ferencd@0:                 // step 1: write control byte and the string length
ferencd@0:                 const auto N = j.m_value.string->size();
ferencd@0:                 if (N <= 31)
ferencd@0:                 {
ferencd@0:                     // fixstr
ferencd@0:                     write_number(static_cast<std::uint8_t>(0xA0 | N));
ferencd@0:                 }
ferencd@0:                 else if (N <= (std::numeric_limits<std::uint8_t>::max)())
ferencd@0:                 {
ferencd@0:                     // str 8
ferencd@0:                     oa->write_character(to_char_type(0xD9));
ferencd@0:                     write_number(static_cast<std::uint8_t>(N));
ferencd@0:                 }
ferencd@0:                 else if (N <= (std::numeric_limits<std::uint16_t>::max)())
ferencd@0:                 {
ferencd@0:                     // str 16
ferencd@0:                     oa->write_character(to_char_type(0xDA));
ferencd@0:                     write_number(static_cast<std::uint16_t>(N));
ferencd@0:                 }
ferencd@0:                 else if (N <= (std::numeric_limits<std::uint32_t>::max)())
ferencd@0:                 {
ferencd@0:                     // str 32
ferencd@0:                     oa->write_character(to_char_type(0xDB));
ferencd@0:                     write_number(static_cast<std::uint32_t>(N));
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // step 2: write the string
ferencd@0:                 oa->write_characters(
ferencd@0:                     reinterpret_cast<const CharType*>(j.m_value.string->c_str()),
ferencd@0:                     j.m_value.string->size());
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 // step 1: write control byte and the array size
ferencd@0:                 const auto N = j.m_value.array->size();
ferencd@0:                 if (N <= 15)
ferencd@0:                 {
ferencd@0:                     // fixarray
ferencd@0:                     write_number(static_cast<std::uint8_t>(0x90 | N));
ferencd@0:                 }
ferencd@0:                 else if (N <= (std::numeric_limits<std::uint16_t>::max)())
ferencd@0:                 {
ferencd@0:                     // array 16
ferencd@0:                     oa->write_character(to_char_type(0xDC));
ferencd@0:                     write_number(static_cast<std::uint16_t>(N));
ferencd@0:                 }
ferencd@0:                 else if (N <= (std::numeric_limits<std::uint32_t>::max)())
ferencd@0:                 {
ferencd@0:                     // array 32
ferencd@0:                     oa->write_character(to_char_type(0xDD));
ferencd@0:                     write_number(static_cast<std::uint32_t>(N));
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // step 2: write each element
ferencd@0:                 for (const auto& el : *j.m_value.array)
ferencd@0:                 {
ferencd@0:                     write_msgpack(el);
ferencd@0:                 }
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::object:
ferencd@0:             {
ferencd@0:                 // step 1: write control byte and the object size
ferencd@0:                 const auto N = j.m_value.object->size();
ferencd@0:                 if (N <= 15)
ferencd@0:                 {
ferencd@0:                     // fixmap
ferencd@0:                     write_number(static_cast<std::uint8_t>(0x80 | (N & 0xF)));
ferencd@0:                 }
ferencd@0:                 else if (N <= (std::numeric_limits<std::uint16_t>::max)())
ferencd@0:                 {
ferencd@0:                     // map 16
ferencd@0:                     oa->write_character(to_char_type(0xDE));
ferencd@0:                     write_number(static_cast<std::uint16_t>(N));
ferencd@0:                 }
ferencd@0:                 else if (N <= (std::numeric_limits<std::uint32_t>::max)())
ferencd@0:                 {
ferencd@0:                     // map 32
ferencd@0:                     oa->write_character(to_char_type(0xDF));
ferencd@0:                     write_number(static_cast<std::uint32_t>(N));
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // step 2: write each element
ferencd@0:                 for (const auto& el : *j.m_value.object)
ferencd@0:                 {
ferencd@0:                     write_msgpack(el.first);
ferencd@0:                     write_msgpack(el.second);
ferencd@0:                 }
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:                 break;
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @param[in] j  JSON value to serialize
ferencd@0:     @param[in] use_count   whether to use '#' prefixes (optimized format)
ferencd@0:     @param[in] use_type    whether to use '$' prefixes (optimized format)
ferencd@0:     @param[in] add_prefix  whether prefixes need to be used for this value
ferencd@0:     */
ferencd@0:     void write_ubjson(const BasicJsonType& j, const bool use_count,
ferencd@0:                       const bool use_type, const bool add_prefix = true)
ferencd@0:     {
ferencd@0:         switch (j.type())
ferencd@0:         {
ferencd@0:             case value_t::null:
ferencd@0:             {
ferencd@0:                 if (add_prefix)
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type('Z'));
ferencd@0:                 }
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::boolean:
ferencd@0:             {
ferencd@0:                 if (add_prefix)
ferencd@0:                 {
ferencd@0:                     oa->write_character(j.m_value.boolean
ferencd@0:                                         ? to_char_type('T')
ferencd@0:                                         : to_char_type('F'));
ferencd@0:                 }
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::number_integer:
ferencd@0:             {
ferencd@0:                 write_number_with_ubjson_prefix(j.m_value.number_integer, add_prefix);
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::number_unsigned:
ferencd@0:             {
ferencd@0:                 write_number_with_ubjson_prefix(j.m_value.number_unsigned, add_prefix);
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::number_float:
ferencd@0:             {
ferencd@0:                 write_number_with_ubjson_prefix(j.m_value.number_float, add_prefix);
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::string:
ferencd@0:             {
ferencd@0:                 if (add_prefix)
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type('S'));
ferencd@0:                 }
ferencd@0:                 write_number_with_ubjson_prefix(j.m_value.string->size(), true);
ferencd@0:                 oa->write_characters(
ferencd@0:                     reinterpret_cast<const CharType*>(j.m_value.string->c_str()),
ferencd@0:                     j.m_value.string->size());
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 if (add_prefix)
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type('['));
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 bool prefix_required = true;
ferencd@0:                 if (use_type and not j.m_value.array->empty())
ferencd@0:                 {
ferencd@0:                     assert(use_count);
ferencd@0:                     const CharType first_prefix = ubjson_prefix(j.front());
ferencd@0:                     const bool same_prefix = std::all_of(j.begin() + 1, j.end(),
ferencd@0:                                                          [this, first_prefix](const BasicJsonType & v)
ferencd@0:                     {
ferencd@0:                         return ubjson_prefix(v) == first_prefix;
ferencd@0:                     });
ferencd@0: 
ferencd@0:                     if (same_prefix)
ferencd@0:                     {
ferencd@0:                         prefix_required = false;
ferencd@0:                         oa->write_character(to_char_type('$'));
ferencd@0:                         oa->write_character(first_prefix);
ferencd@0:                     }
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 if (use_count)
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type('#'));
ferencd@0:                     write_number_with_ubjson_prefix(j.m_value.array->size(), true);
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 for (const auto& el : *j.m_value.array)
ferencd@0:                 {
ferencd@0:                     write_ubjson(el, use_count, use_type, prefix_required);
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 if (not use_count)
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type(']'));
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::object:
ferencd@0:             {
ferencd@0:                 if (add_prefix)
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type('{'));
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 bool prefix_required = true;
ferencd@0:                 if (use_type and not j.m_value.object->empty())
ferencd@0:                 {
ferencd@0:                     assert(use_count);
ferencd@0:                     const CharType first_prefix = ubjson_prefix(j.front());
ferencd@0:                     const bool same_prefix = std::all_of(j.begin(), j.end(),
ferencd@0:                                                          [this, first_prefix](const BasicJsonType & v)
ferencd@0:                     {
ferencd@0:                         return ubjson_prefix(v) == first_prefix;
ferencd@0:                     });
ferencd@0: 
ferencd@0:                     if (same_prefix)
ferencd@0:                     {
ferencd@0:                         prefix_required = false;
ferencd@0:                         oa->write_character(to_char_type('$'));
ferencd@0:                         oa->write_character(first_prefix);
ferencd@0:                     }
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 if (use_count)
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type('#'));
ferencd@0:                     write_number_with_ubjson_prefix(j.m_value.object->size(), true);
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 for (const auto& el : *j.m_value.object)
ferencd@0:                 {
ferencd@0:                     write_number_with_ubjson_prefix(el.first.size(), true);
ferencd@0:                     oa->write_characters(
ferencd@0:                         reinterpret_cast<const CharType*>(el.first.c_str()),
ferencd@0:                         el.first.size());
ferencd@0:                     write_ubjson(el.second, use_count, use_type, prefix_required);
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 if (not use_count)
ferencd@0:                 {
ferencd@0:                     oa->write_character(to_char_type('}'));
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:                 break;
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     //////////
ferencd@0:     // BSON //
ferencd@0:     //////////
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @return The size of a BSON document entry header, including the id marker
ferencd@0:             and the entry name size (and its null-terminator).
ferencd@0:     */
ferencd@0:     static std::size_t calc_bson_entry_header_size(const string_t& name)
ferencd@0:     {
ferencd@0:         const auto it = name.find(static_cast<typename string_t::value_type>(0));
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(it != BasicJsonType::string_t::npos))
ferencd@0:         {
ferencd@0:             JSON_THROW(out_of_range::create(409,
ferencd@0:                                             "BSON key cannot contain code point U+0000 (at byte " + std::to_string(it) + ")"));
ferencd@0:         }
ferencd@0: 
ferencd@0:         return /*id*/ 1ul + name.size() + /*zero-terminator*/1u;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief Writes the given @a element_type and @a name to the output adapter
ferencd@0:     */
ferencd@0:     void write_bson_entry_header(const string_t& name,
ferencd@0:                                  const std::uint8_t element_type)
ferencd@0:     {
ferencd@0:         oa->write_character(to_char_type(element_type)); // boolean
ferencd@0:         oa->write_characters(
ferencd@0:             reinterpret_cast<const CharType*>(name.c_str()),
ferencd@0:             name.size() + 1u);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief Writes a BSON element with key @a name and boolean value @a value
ferencd@0:     */
ferencd@0:     void write_bson_boolean(const string_t& name,
ferencd@0:                             const bool value)
ferencd@0:     {
ferencd@0:         write_bson_entry_header(name, 0x08);
ferencd@0:         oa->write_character(value ? to_char_type(0x01) : to_char_type(0x00));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief Writes a BSON element with key @a name and double value @a value
ferencd@0:     */
ferencd@0:     void write_bson_double(const string_t& name,
ferencd@0:                            const double value)
ferencd@0:     {
ferencd@0:         write_bson_entry_header(name, 0x01);
ferencd@0:         write_number<double, true>(value);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @return The size of the BSON-encoded string in @a value
ferencd@0:     */
ferencd@0:     static std::size_t calc_bson_string_size(const string_t& value)
ferencd@0:     {
ferencd@0:         return sizeof(std::int32_t) + value.size() + 1ul;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief Writes a BSON element with key @a name and string value @a value
ferencd@0:     */
ferencd@0:     void write_bson_string(const string_t& name,
ferencd@0:                            const string_t& value)
ferencd@0:     {
ferencd@0:         write_bson_entry_header(name, 0x02);
ferencd@0: 
ferencd@0:         write_number<std::int32_t, true>(static_cast<std::int32_t>(value.size() + 1ul));
ferencd@0:         oa->write_characters(
ferencd@0:             reinterpret_cast<const CharType*>(value.c_str()),
ferencd@0:             value.size() + 1);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief Writes a BSON element with key @a name and null value
ferencd@0:     */
ferencd@0:     void write_bson_null(const string_t& name)
ferencd@0:     {
ferencd@0:         write_bson_entry_header(name, 0x0A);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @return The size of the BSON-encoded integer @a value
ferencd@0:     */
ferencd@0:     static std::size_t calc_bson_integer_size(const std::int64_t value)
ferencd@0:     {
ferencd@0:         return (std::numeric_limits<std::int32_t>::min)() <= value and value <= (std::numeric_limits<std::int32_t>::max)()
ferencd@0:                ? sizeof(std::int32_t)
ferencd@0:                : sizeof(std::int64_t);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief Writes a BSON element with key @a name and integer @a value
ferencd@0:     */
ferencd@0:     void write_bson_integer(const string_t& name,
ferencd@0:                             const std::int64_t value)
ferencd@0:     {
ferencd@0:         if ((std::numeric_limits<std::int32_t>::min)() <= value and value <= (std::numeric_limits<std::int32_t>::max)())
ferencd@0:         {
ferencd@0:             write_bson_entry_header(name, 0x10); // int32
ferencd@0:             write_number<std::int32_t, true>(static_cast<std::int32_t>(value));
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             write_bson_entry_header(name, 0x12); // int64
ferencd@0:             write_number<std::int64_t, true>(static_cast<std::int64_t>(value));
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @return The size of the BSON-encoded unsigned integer in @a j
ferencd@0:     */
ferencd@0:     static constexpr std::size_t calc_bson_unsigned_size(const std::uint64_t value) noexcept
ferencd@0:     {
ferencd@0:         return (value <= static_cast<std::uint64_t>((std::numeric_limits<std::int32_t>::max)()))
ferencd@0:                ? sizeof(std::int32_t)
ferencd@0:                : sizeof(std::int64_t);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief Writes a BSON element with key @a name and unsigned @a value
ferencd@0:     */
ferencd@0:     void write_bson_unsigned(const string_t& name,
ferencd@0:                              const std::uint64_t value)
ferencd@0:     {
ferencd@0:         if (value <= static_cast<std::uint64_t>((std::numeric_limits<std::int32_t>::max)()))
ferencd@0:         {
ferencd@0:             write_bson_entry_header(name, 0x10 /* int32 */);
ferencd@0:             write_number<std::int32_t, true>(static_cast<std::int32_t>(value));
ferencd@0:         }
ferencd@0:         else if (value <= static_cast<std::uint64_t>((std::numeric_limits<std::int64_t>::max)()))
ferencd@0:         {
ferencd@0:             write_bson_entry_header(name, 0x12 /* int64 */);
ferencd@0:             write_number<std::int64_t, true>(static_cast<std::int64_t>(value));
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             JSON_THROW(out_of_range::create(407, "integer number " + std::to_string(value) + " cannot be represented by BSON as it does not fit int64"));
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief Writes a BSON element with key @a name and object @a value
ferencd@0:     */
ferencd@0:     void write_bson_object_entry(const string_t& name,
ferencd@0:                                  const typename BasicJsonType::object_t& value)
ferencd@0:     {
ferencd@0:         write_bson_entry_header(name, 0x03); // object
ferencd@0:         write_bson_object(value);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @return The size of the BSON-encoded array @a value
ferencd@0:     */
ferencd@0:     static std::size_t calc_bson_array_size(const typename BasicJsonType::array_t& value)
ferencd@0:     {
ferencd@0:         std::size_t embedded_document_size = 0ul;
ferencd@0:         std::size_t array_index = 0ul;
ferencd@0: 
ferencd@0:         for (const auto& el : value)
ferencd@0:         {
ferencd@0:             embedded_document_size += calc_bson_element_size(std::to_string(array_index++), el);
ferencd@0:         }
ferencd@0: 
ferencd@0:         return sizeof(std::int32_t) + embedded_document_size + 1ul;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief Writes a BSON element with key @a name and array @a value
ferencd@0:     */
ferencd@0:     void write_bson_array(const string_t& name,
ferencd@0:                           const typename BasicJsonType::array_t& value)
ferencd@0:     {
ferencd@0:         write_bson_entry_header(name, 0x04); // array
ferencd@0:         write_number<std::int32_t, true>(static_cast<std::int32_t>(calc_bson_array_size(value)));
ferencd@0: 
ferencd@0:         std::size_t array_index = 0ul;
ferencd@0: 
ferencd@0:         for (const auto& el : value)
ferencd@0:         {
ferencd@0:             write_bson_element(std::to_string(array_index++), el);
ferencd@0:         }
ferencd@0: 
ferencd@0:         oa->write_character(to_char_type(0x00));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief Calculates the size necessary to serialize the JSON value @a j with its @a name
ferencd@0:     @return The calculated size for the BSON document entry for @a j with the given @a name.
ferencd@0:     */
ferencd@0:     static std::size_t calc_bson_element_size(const string_t& name,
ferencd@0:             const BasicJsonType& j)
ferencd@0:     {
ferencd@0:         const auto header_size = calc_bson_entry_header_size(name);
ferencd@0:         switch (j.type())
ferencd@0:         {
ferencd@0:             case value_t::object:
ferencd@0:                 return header_size + calc_bson_object_size(*j.m_value.object);
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:                 return header_size + calc_bson_array_size(*j.m_value.array);
ferencd@0: 
ferencd@0:             case value_t::boolean:
ferencd@0:                 return header_size + 1ul;
ferencd@0: 
ferencd@0:             case value_t::number_float:
ferencd@0:                 return header_size + 8ul;
ferencd@0: 
ferencd@0:             case value_t::number_integer:
ferencd@0:                 return header_size + calc_bson_integer_size(j.m_value.number_integer);
ferencd@0: 
ferencd@0:             case value_t::number_unsigned:
ferencd@0:                 return header_size + calc_bson_unsigned_size(j.m_value.number_unsigned);
ferencd@0: 
ferencd@0:             case value_t::string:
ferencd@0:                 return header_size + calc_bson_string_size(*j.m_value.string);
ferencd@0: 
ferencd@0:             case value_t::null:
ferencd@0:                 return header_size + 0ul;
ferencd@0: 
ferencd@0:             // LCOV_EXCL_START
ferencd@0:             default:
ferencd@0:                 assert(false);
ferencd@0:                 return 0ul;
ferencd@0:                 // LCOV_EXCL_STOP
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief Serializes the JSON value @a j to BSON and associates it with the
ferencd@0:            key @a name.
ferencd@0:     @param name The name to associate with the JSON entity @a j within the
ferencd@0:                 current BSON document
ferencd@0:     @return The size of the BSON entry
ferencd@0:     */
ferencd@0:     void write_bson_element(const string_t& name,
ferencd@0:                             const BasicJsonType& j)
ferencd@0:     {
ferencd@0:         switch (j.type())
ferencd@0:         {
ferencd@0:             case value_t::object:
ferencd@0:                 return write_bson_object_entry(name, *j.m_value.object);
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:                 return write_bson_array(name, *j.m_value.array);
ferencd@0: 
ferencd@0:             case value_t::boolean:
ferencd@0:                 return write_bson_boolean(name, j.m_value.boolean);
ferencd@0: 
ferencd@0:             case value_t::number_float:
ferencd@0:                 return write_bson_double(name, j.m_value.number_float);
ferencd@0: 
ferencd@0:             case value_t::number_integer:
ferencd@0:                 return write_bson_integer(name, j.m_value.number_integer);
ferencd@0: 
ferencd@0:             case value_t::number_unsigned:
ferencd@0:                 return write_bson_unsigned(name, j.m_value.number_unsigned);
ferencd@0: 
ferencd@0:             case value_t::string:
ferencd@0:                 return write_bson_string(name, *j.m_value.string);
ferencd@0: 
ferencd@0:             case value_t::null:
ferencd@0:                 return write_bson_null(name);
ferencd@0: 
ferencd@0:             // LCOV_EXCL_START
ferencd@0:             default:
ferencd@0:                 assert(false);
ferencd@0:                 return;
ferencd@0:                 // LCOV_EXCL_STOP
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief Calculates the size of the BSON serialization of the given
ferencd@0:            JSON-object @a j.
ferencd@0:     @param[in] j  JSON value to serialize
ferencd@0:     @pre       j.type() == value_t::object
ferencd@0:     */
ferencd@0:     static std::size_t calc_bson_object_size(const typename BasicJsonType::object_t& value)
ferencd@0:     {
ferencd@0:         std::size_t document_size = std::accumulate(value.begin(), value.end(), 0ul,
ferencd@0:                                     [](size_t result, const typename BasicJsonType::object_t::value_type & el)
ferencd@0:         {
ferencd@0:             return result += calc_bson_element_size(el.first, el.second);
ferencd@0:         });
ferencd@0: 
ferencd@0:         return sizeof(std::int32_t) + document_size + 1ul;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @param[in] j  JSON value to serialize
ferencd@0:     @pre       j.type() == value_t::object
ferencd@0:     */
ferencd@0:     void write_bson_object(const typename BasicJsonType::object_t& value)
ferencd@0:     {
ferencd@0:         write_number<std::int32_t, true>(static_cast<std::int32_t>(calc_bson_object_size(value)));
ferencd@0: 
ferencd@0:         for (const auto& el : value)
ferencd@0:         {
ferencd@0:             write_bson_element(el.first, el.second);
ferencd@0:         }
ferencd@0: 
ferencd@0:         oa->write_character(to_char_type(0x00));
ferencd@0:     }
ferencd@0: 
ferencd@0:     //////////
ferencd@0:     // CBOR //
ferencd@0:     //////////
ferencd@0: 
ferencd@0:     static constexpr CharType get_cbor_float_prefix(float /*unused*/)
ferencd@0:     {
ferencd@0:         return to_char_type(0xFA);  // Single-Precision Float
ferencd@0:     }
ferencd@0: 
ferencd@0:     static constexpr CharType get_cbor_float_prefix(double /*unused*/)
ferencd@0:     {
ferencd@0:         return to_char_type(0xFB);  // Double-Precision Float
ferencd@0:     }
ferencd@0: 
ferencd@0:     /////////////
ferencd@0:     // MsgPack //
ferencd@0:     /////////////
ferencd@0: 
ferencd@0:     static constexpr CharType get_msgpack_float_prefix(float /*unused*/)
ferencd@0:     {
ferencd@0:         return to_char_type(0xCA);  // float 32
ferencd@0:     }
ferencd@0: 
ferencd@0:     static constexpr CharType get_msgpack_float_prefix(double /*unused*/)
ferencd@0:     {
ferencd@0:         return to_char_type(0xCB);  // float 64
ferencd@0:     }
ferencd@0: 
ferencd@0:     ////////////
ferencd@0:     // UBJSON //
ferencd@0:     ////////////
ferencd@0: 
ferencd@0:     // UBJSON: write number (floating point)
ferencd@0:     template<typename NumberType, typename std::enable_if<
ferencd@0:                  std::is_floating_point<NumberType>::value, int>::type = 0>
ferencd@0:     void write_number_with_ubjson_prefix(const NumberType n,
ferencd@0:                                          const bool add_prefix)
ferencd@0:     {
ferencd@0:         if (add_prefix)
ferencd@0:         {
ferencd@0:             oa->write_character(get_ubjson_float_prefix(n));
ferencd@0:         }
ferencd@0:         write_number(n);
ferencd@0:     }
ferencd@0: 
ferencd@0:     // UBJSON: write number (unsigned integer)
ferencd@0:     template<typename NumberType, typename std::enable_if<
ferencd@0:                  std::is_unsigned<NumberType>::value, int>::type = 0>
ferencd@0:     void write_number_with_ubjson_prefix(const NumberType n,
ferencd@0:                                          const bool add_prefix)
ferencd@0:     {
ferencd@0:         if (n <= static_cast<std::uint64_t>((std::numeric_limits<std::int8_t>::max)()))
ferencd@0:         {
ferencd@0:             if (add_prefix)
ferencd@0:             {
ferencd@0:                 oa->write_character(to_char_type('i'));  // int8
ferencd@0:             }
ferencd@0:             write_number(static_cast<std::uint8_t>(n));
ferencd@0:         }
ferencd@0:         else if (n <= (std::numeric_limits<std::uint8_t>::max)())
ferencd@0:         {
ferencd@0:             if (add_prefix)
ferencd@0:             {
ferencd@0:                 oa->write_character(to_char_type('U'));  // uint8
ferencd@0:             }
ferencd@0:             write_number(static_cast<std::uint8_t>(n));
ferencd@0:         }
ferencd@0:         else if (n <= static_cast<std::uint64_t>((std::numeric_limits<std::int16_t>::max)()))
ferencd@0:         {
ferencd@0:             if (add_prefix)
ferencd@0:             {
ferencd@0:                 oa->write_character(to_char_type('I'));  // int16
ferencd@0:             }
ferencd@0:             write_number(static_cast<std::int16_t>(n));
ferencd@0:         }
ferencd@0:         else if (n <= static_cast<std::uint64_t>((std::numeric_limits<std::int32_t>::max)()))
ferencd@0:         {
ferencd@0:             if (add_prefix)
ferencd@0:             {
ferencd@0:                 oa->write_character(to_char_type('l'));  // int32
ferencd@0:             }
ferencd@0:             write_number(static_cast<std::int32_t>(n));
ferencd@0:         }
ferencd@0:         else if (n <= static_cast<std::uint64_t>((std::numeric_limits<std::int64_t>::max)()))
ferencd@0:         {
ferencd@0:             if (add_prefix)
ferencd@0:             {
ferencd@0:                 oa->write_character(to_char_type('L'));  // int64
ferencd@0:             }
ferencd@0:             write_number(static_cast<std::int64_t>(n));
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             JSON_THROW(out_of_range::create(407, "integer number " + std::to_string(n) + " cannot be represented by UBJSON as it does not fit int64"));
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     // UBJSON: write number (signed integer)
ferencd@0:     template<typename NumberType, typename std::enable_if<
ferencd@0:                  std::is_signed<NumberType>::value and
ferencd@0:                  not std::is_floating_point<NumberType>::value, int>::type = 0>
ferencd@0:     void write_number_with_ubjson_prefix(const NumberType n,
ferencd@0:                                          const bool add_prefix)
ferencd@0:     {
ferencd@0:         if ((std::numeric_limits<std::int8_t>::min)() <= n and n <= (std::numeric_limits<std::int8_t>::max)())
ferencd@0:         {
ferencd@0:             if (add_prefix)
ferencd@0:             {
ferencd@0:                 oa->write_character(to_char_type('i'));  // int8
ferencd@0:             }
ferencd@0:             write_number(static_cast<std::int8_t>(n));
ferencd@0:         }
ferencd@0:         else if (static_cast<std::int64_t>((std::numeric_limits<std::uint8_t>::min)()) <= n and n <= static_cast<std::int64_t>((std::numeric_limits<std::uint8_t>::max)()))
ferencd@0:         {
ferencd@0:             if (add_prefix)
ferencd@0:             {
ferencd@0:                 oa->write_character(to_char_type('U'));  // uint8
ferencd@0:             }
ferencd@0:             write_number(static_cast<std::uint8_t>(n));
ferencd@0:         }
ferencd@0:         else if ((std::numeric_limits<std::int16_t>::min)() <= n and n <= (std::numeric_limits<std::int16_t>::max)())
ferencd@0:         {
ferencd@0:             if (add_prefix)
ferencd@0:             {
ferencd@0:                 oa->write_character(to_char_type('I'));  // int16
ferencd@0:             }
ferencd@0:             write_number(static_cast<std::int16_t>(n));
ferencd@0:         }
ferencd@0:         else if ((std::numeric_limits<std::int32_t>::min)() <= n and n <= (std::numeric_limits<std::int32_t>::max)())
ferencd@0:         {
ferencd@0:             if (add_prefix)
ferencd@0:             {
ferencd@0:                 oa->write_character(to_char_type('l'));  // int32
ferencd@0:             }
ferencd@0:             write_number(static_cast<std::int32_t>(n));
ferencd@0:         }
ferencd@0:         else if ((std::numeric_limits<std::int64_t>::min)() <= n and n <= (std::numeric_limits<std::int64_t>::max)())
ferencd@0:         {
ferencd@0:             if (add_prefix)
ferencd@0:             {
ferencd@0:                 oa->write_character(to_char_type('L'));  // int64
ferencd@0:             }
ferencd@0:             write_number(static_cast<std::int64_t>(n));
ferencd@0:         }
ferencd@0:         // LCOV_EXCL_START
ferencd@0:         else
ferencd@0:         {
ferencd@0:             JSON_THROW(out_of_range::create(407, "integer number " + std::to_string(n) + " cannot be represented by UBJSON as it does not fit int64"));
ferencd@0:         }
ferencd@0:         // LCOV_EXCL_STOP
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief determine the type prefix of container values
ferencd@0: 
ferencd@0:     @note This function does not need to be 100% accurate when it comes to
ferencd@0:           integer limits. In case a number exceeds the limits of int64_t,
ferencd@0:           this will be detected by a later call to function
ferencd@0:           write_number_with_ubjson_prefix. Therefore, we return 'L' for any
ferencd@0:           value that does not fit the previous limits.
ferencd@0:     */
ferencd@0:     CharType ubjson_prefix(const BasicJsonType& j) const noexcept
ferencd@0:     {
ferencd@0:         switch (j.type())
ferencd@0:         {
ferencd@0:             case value_t::null:
ferencd@0:                 return 'Z';
ferencd@0: 
ferencd@0:             case value_t::boolean:
ferencd@0:                 return j.m_value.boolean ? 'T' : 'F';
ferencd@0: 
ferencd@0:             case value_t::number_integer:
ferencd@0:             {
ferencd@0:                 if ((std::numeric_limits<std::int8_t>::min)() <= j.m_value.number_integer and j.m_value.number_integer <= (std::numeric_limits<std::int8_t>::max)())
ferencd@0:                 {
ferencd@0:                     return 'i';
ferencd@0:                 }
ferencd@0:                 if ((std::numeric_limits<std::uint8_t>::min)() <= j.m_value.number_integer and j.m_value.number_integer <= (std::numeric_limits<std::uint8_t>::max)())
ferencd@0:                 {
ferencd@0:                     return 'U';
ferencd@0:                 }
ferencd@0:                 if ((std::numeric_limits<std::int16_t>::min)() <= j.m_value.number_integer and j.m_value.number_integer <= (std::numeric_limits<std::int16_t>::max)())
ferencd@0:                 {
ferencd@0:                     return 'I';
ferencd@0:                 }
ferencd@0:                 if ((std::numeric_limits<std::int32_t>::min)() <= j.m_value.number_integer and j.m_value.number_integer <= (std::numeric_limits<std::int32_t>::max)())
ferencd@0:                 {
ferencd@0:                     return 'l';
ferencd@0:                 }
ferencd@0:                 // no check and assume int64_t (see note above)
ferencd@0:                 return 'L';
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::number_unsigned:
ferencd@0:             {
ferencd@0:                 if (j.m_value.number_unsigned <= static_cast<std::uint64_t>((std::numeric_limits<std::int8_t>::max)()))
ferencd@0:                 {
ferencd@0:                     return 'i';
ferencd@0:                 }
ferencd@0:                 if (j.m_value.number_unsigned <= static_cast<std::uint64_t>((std::numeric_limits<std::uint8_t>::max)()))
ferencd@0:                 {
ferencd@0:                     return 'U';
ferencd@0:                 }
ferencd@0:                 if (j.m_value.number_unsigned <= static_cast<std::uint64_t>((std::numeric_limits<std::int16_t>::max)()))
ferencd@0:                 {
ferencd@0:                     return 'I';
ferencd@0:                 }
ferencd@0:                 if (j.m_value.number_unsigned <= static_cast<std::uint64_t>((std::numeric_limits<std::int32_t>::max)()))
ferencd@0:                 {
ferencd@0:                     return 'l';
ferencd@0:                 }
ferencd@0:                 // no check and assume int64_t (see note above)
ferencd@0:                 return 'L';
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::number_float:
ferencd@0:                 return get_ubjson_float_prefix(j.m_value.number_float);
ferencd@0: 
ferencd@0:             case value_t::string:
ferencd@0:                 return 'S';
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:                 return '[';
ferencd@0: 
ferencd@0:             case value_t::object:
ferencd@0:                 return '{';
ferencd@0: 
ferencd@0:             default:  // discarded values
ferencd@0:                 return 'N';
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     static constexpr CharType get_ubjson_float_prefix(float /*unused*/)
ferencd@0:     {
ferencd@0:         return 'd';  // float 32
ferencd@0:     }
ferencd@0: 
ferencd@0:     static constexpr CharType get_ubjson_float_prefix(double /*unused*/)
ferencd@0:     {
ferencd@0:         return 'D';  // float 64
ferencd@0:     }
ferencd@0: 
ferencd@0:     ///////////////////////
ferencd@0:     // Utility functions //
ferencd@0:     ///////////////////////
ferencd@0: 
ferencd@0:     /*
ferencd@0:     @brief write a number to output input
ferencd@0:     @param[in] n number of type @a NumberType
ferencd@0:     @tparam NumberType the type of the number
ferencd@0:     @tparam OutputIsLittleEndian Set to true if output data is
ferencd@0:                                  required to be little endian
ferencd@0: 
ferencd@0:     @note This function needs to respect the system's endianess, because bytes
ferencd@0:           in CBOR, MessagePack, and UBJSON are stored in network order (big
ferencd@0:           endian) and therefore need reordering on little endian systems.
ferencd@0:     */
ferencd@0:     template<typename NumberType, bool OutputIsLittleEndian = false>
ferencd@0:     void write_number(const NumberType n)
ferencd@0:     {
ferencd@0:         // step 1: write number to array of length NumberType
ferencd@0:         std::array<CharType, sizeof(NumberType)> vec;
ferencd@0:         std::memcpy(vec.data(), &n, sizeof(NumberType));
ferencd@0: 
ferencd@0:         // step 2: write array to output (with possible reordering)
ferencd@0:         if (is_little_endian != OutputIsLittleEndian)
ferencd@0:         {
ferencd@0:             // reverse byte order prior to conversion if necessary
ferencd@0:             std::reverse(vec.begin(), vec.end());
ferencd@0:         }
ferencd@0: 
ferencd@0:         oa->write_characters(vec.data(), sizeof(NumberType));
ferencd@0:     }
ferencd@0: 
ferencd@0:   public:
ferencd@0:     // The following to_char_type functions are implement the conversion
ferencd@0:     // between uint8_t and CharType. In case CharType is not unsigned,
ferencd@0:     // such a conversion is required to allow values greater than 128.
ferencd@0:     // See <https://github.com/nlohmann/json/issues/1286> for a discussion.
ferencd@0:     template < typename C = CharType,
ferencd@0:                enable_if_t < std::is_signed<C>::value and std::is_signed<char>::value > * = nullptr >
ferencd@0:     static constexpr CharType to_char_type(std::uint8_t x) noexcept
ferencd@0:     {
ferencd@0:         return *reinterpret_cast<char*>(&x);
ferencd@0:     }
ferencd@0: 
ferencd@0:     template < typename C = CharType,
ferencd@0:                enable_if_t < std::is_signed<C>::value and std::is_unsigned<char>::value > * = nullptr >
ferencd@0:     static CharType to_char_type(std::uint8_t x) noexcept
ferencd@0:     {
ferencd@0:         static_assert(sizeof(std::uint8_t) == sizeof(CharType), "size of CharType must be equal to std::uint8_t");
ferencd@0:         static_assert(std::is_pod<CharType>::value, "CharType must be POD");
ferencd@0:         CharType result;
ferencd@0:         std::memcpy(&result, &x, sizeof(x));
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     template<typename C = CharType,
ferencd@0:              enable_if_t<std::is_unsigned<C>::value>* = nullptr>
ferencd@0:     static constexpr CharType to_char_type(std::uint8_t x) noexcept
ferencd@0:     {
ferencd@0:         return x;
ferencd@0:     }
ferencd@0: 
ferencd@0:     template < typename InputCharType, typename C = CharType,
ferencd@0:                enable_if_t <
ferencd@0:                    std::is_signed<C>::value and
ferencd@0:                    std::is_signed<char>::value and
ferencd@0:                    std::is_same<char, typename std::remove_cv<InputCharType>::type>::value
ferencd@0:                    > * = nullptr >
ferencd@0:     static constexpr CharType to_char_type(InputCharType x) noexcept
ferencd@0:     {
ferencd@0:         return x;
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     /// whether we can assume little endianess
ferencd@0:     const bool is_little_endian = binary_reader<BasicJsonType>::little_endianess();
ferencd@0: 
ferencd@0:     /// the output
ferencd@0:     output_adapter_t<CharType> oa = nullptr;
ferencd@0: };
ferencd@0: }  // namespace detail
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/output/output_adapters.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/output/serializer.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <algorithm> // reverse, remove, fill, find, none_of
ferencd@0: #include <array> // array
ferencd@0: #include <cassert> // assert
ferencd@0: #include <ciso646> // and, or
ferencd@0: #include <clocale> // localeconv, lconv
ferencd@0: #include <cmath> // labs, isfinite, isnan, signbit
ferencd@0: #include <cstddef> // size_t, ptrdiff_t
ferencd@0: #include <cstdint> // uint8_t
ferencd@0: #include <cstdio> // snprintf
ferencd@0: #include <limits> // numeric_limits
ferencd@0: #include <string> // string
ferencd@0: #include <type_traits> // is_same
ferencd@0: #include <utility> // move
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/conversions/to_chars.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: #include <array> // array
ferencd@0: #include <cassert> // assert
ferencd@0: #include <ciso646> // or, and, not
ferencd@0: #include <cmath>   // signbit, isfinite
ferencd@0: #include <cstdint> // intN_t, uintN_t
ferencd@0: #include <cstring> // memcpy, memmove
ferencd@0: #include <limits> // numeric_limits
ferencd@0: #include <type_traits> // conditional
ferencd@0: // #include <nlohmann/detail/macro_scope.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief implements the Grisu2 algorithm for binary to decimal floating-point
ferencd@0: conversion.
ferencd@0: 
ferencd@0: This implementation is a slightly modified version of the reference
ferencd@0: implementation which may be obtained from
ferencd@0: http://florian.loitsch.com/publications (bench.tar.gz).
ferencd@0: 
ferencd@0: The code is distributed under the MIT license, Copyright (c) 2009 Florian Loitsch.
ferencd@0: 
ferencd@0: For a detailed description of the algorithm see:
ferencd@0: 
ferencd@0: [1] Loitsch, "Printing Floating-Point Numbers Quickly and Accurately with
ferencd@0:     Integers", Proceedings of the ACM SIGPLAN 2010 Conference on Programming
ferencd@0:     Language Design and Implementation, PLDI 2010
ferencd@0: [2] Burger, Dybvig, "Printing Floating-Point Numbers Quickly and Accurately",
ferencd@0:     Proceedings of the ACM SIGPLAN 1996 Conference on Programming Language
ferencd@0:     Design and Implementation, PLDI 1996
ferencd@0: */
ferencd@0: namespace dtoa_impl
ferencd@0: {
ferencd@0: 
ferencd@0: template <typename Target, typename Source>
ferencd@0: Target reinterpret_bits(const Source source)
ferencd@0: {
ferencd@0:     static_assert(sizeof(Target) == sizeof(Source), "size mismatch");
ferencd@0: 
ferencd@0:     Target target;
ferencd@0:     std::memcpy(&target, &source, sizeof(Source));
ferencd@0:     return target;
ferencd@0: }
ferencd@0: 
ferencd@0: struct diyfp // f * 2^e
ferencd@0: {
ferencd@0:     static constexpr int kPrecision = 64; // = q
ferencd@0: 
ferencd@0:     std::uint64_t f = 0;
ferencd@0:     int e = 0;
ferencd@0: 
ferencd@0:     constexpr diyfp(std::uint64_t f_, int e_) noexcept : f(f_), e(e_) {}
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief returns x - y
ferencd@0:     @pre x.e == y.e and x.f >= y.f
ferencd@0:     */
ferencd@0:     static diyfp sub(const diyfp& x, const diyfp& y) noexcept
ferencd@0:     {
ferencd@0:         assert(x.e == y.e);
ferencd@0:         assert(x.f >= y.f);
ferencd@0: 
ferencd@0:         return {x.f - y.f, x.e};
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief returns x * y
ferencd@0:     @note The result is rounded. (Only the upper q bits are returned.)
ferencd@0:     */
ferencd@0:     static diyfp mul(const diyfp& x, const diyfp& y) noexcept
ferencd@0:     {
ferencd@0:         static_assert(kPrecision == 64, "internal error");
ferencd@0: 
ferencd@0:         // Computes:
ferencd@0:         //  f = round((x.f * y.f) / 2^q)
ferencd@0:         //  e = x.e + y.e + q
ferencd@0: 
ferencd@0:         // Emulate the 64-bit * 64-bit multiplication:
ferencd@0:         //
ferencd@0:         // p = u * v
ferencd@0:         //   = (u_lo + 2^32 u_hi) (v_lo + 2^32 v_hi)
ferencd@0:         //   = (u_lo v_lo         ) + 2^32 ((u_lo v_hi         ) + (u_hi v_lo         )) + 2^64 (u_hi v_hi         )
ferencd@0:         //   = (p0                ) + 2^32 ((p1                ) + (p2                )) + 2^64 (p3                )
ferencd@0:         //   = (p0_lo + 2^32 p0_hi) + 2^32 ((p1_lo + 2^32 p1_hi) + (p2_lo + 2^32 p2_hi)) + 2^64 (p3                )
ferencd@0:         //   = (p0_lo             ) + 2^32 (p0_hi + p1_lo + p2_lo                      ) + 2^64 (p1_hi + p2_hi + p3)
ferencd@0:         //   = (p0_lo             ) + 2^32 (Q                                          ) + 2^64 (H                 )
ferencd@0:         //   = (p0_lo             ) + 2^32 (Q_lo + 2^32 Q_hi                           ) + 2^64 (H                 )
ferencd@0:         //
ferencd@0:         // (Since Q might be larger than 2^32 - 1)
ferencd@0:         //
ferencd@0:         //   = (p0_lo + 2^32 Q_lo) + 2^64 (Q_hi + H)
ferencd@0:         //
ferencd@0:         // (Q_hi + H does not overflow a 64-bit int)
ferencd@0:         //
ferencd@0:         //   = p_lo + 2^64 p_hi
ferencd@0: 
ferencd@0:         const std::uint64_t u_lo = x.f & 0xFFFFFFFFu;
ferencd@0:         const std::uint64_t u_hi = x.f >> 32u;
ferencd@0:         const std::uint64_t v_lo = y.f & 0xFFFFFFFFu;
ferencd@0:         const std::uint64_t v_hi = y.f >> 32u;
ferencd@0: 
ferencd@0:         const std::uint64_t p0 = u_lo * v_lo;
ferencd@0:         const std::uint64_t p1 = u_lo * v_hi;
ferencd@0:         const std::uint64_t p2 = u_hi * v_lo;
ferencd@0:         const std::uint64_t p3 = u_hi * v_hi;
ferencd@0: 
ferencd@0:         const std::uint64_t p0_hi = p0 >> 32u;
ferencd@0:         const std::uint64_t p1_lo = p1 & 0xFFFFFFFFu;
ferencd@0:         const std::uint64_t p1_hi = p1 >> 32u;
ferencd@0:         const std::uint64_t p2_lo = p2 & 0xFFFFFFFFu;
ferencd@0:         const std::uint64_t p2_hi = p2 >> 32u;
ferencd@0: 
ferencd@0:         std::uint64_t Q = p0_hi + p1_lo + p2_lo;
ferencd@0: 
ferencd@0:         // The full product might now be computed as
ferencd@0:         //
ferencd@0:         // p_hi = p3 + p2_hi + p1_hi + (Q >> 32)
ferencd@0:         // p_lo = p0_lo + (Q << 32)
ferencd@0:         //
ferencd@0:         // But in this particular case here, the full p_lo is not required.
ferencd@0:         // Effectively we only need to add the highest bit in p_lo to p_hi (and
ferencd@0:         // Q_hi + 1 does not overflow).
ferencd@0: 
ferencd@0:         Q += std::uint64_t{1} << (64u - 32u - 1u); // round, ties up
ferencd@0: 
ferencd@0:         const std::uint64_t h = p3 + p2_hi + p1_hi + (Q >> 32u);
ferencd@0: 
ferencd@0:         return {h, x.e + y.e + 64};
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief normalize x such that the significand is >= 2^(q-1)
ferencd@0:     @pre x.f != 0
ferencd@0:     */
ferencd@0:     static diyfp normalize(diyfp x) noexcept
ferencd@0:     {
ferencd@0:         assert(x.f != 0);
ferencd@0: 
ferencd@0:         while ((x.f >> 63u) == 0)
ferencd@0:         {
ferencd@0:             x.f <<= 1u;
ferencd@0:             x.e--;
ferencd@0:         }
ferencd@0: 
ferencd@0:         return x;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief normalize x such that the result has the exponent E
ferencd@0:     @pre e >= x.e and the upper e - x.e bits of x.f must be zero.
ferencd@0:     */
ferencd@0:     static diyfp normalize_to(const diyfp& x, const int target_exponent) noexcept
ferencd@0:     {
ferencd@0:         const int delta = x.e - target_exponent;
ferencd@0: 
ferencd@0:         assert(delta >= 0);
ferencd@0:         assert(((x.f << delta) >> delta) == x.f);
ferencd@0: 
ferencd@0:         return {x.f << delta, target_exponent};
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: struct boundaries
ferencd@0: {
ferencd@0:     diyfp w;
ferencd@0:     diyfp minus;
ferencd@0:     diyfp plus;
ferencd@0: };
ferencd@0: 
ferencd@0: /*!
ferencd@0: Compute the (normalized) diyfp representing the input number 'value' and its
ferencd@0: boundaries.
ferencd@0: 
ferencd@0: @pre value must be finite and positive
ferencd@0: */
ferencd@0: template <typename FloatType>
ferencd@0: boundaries compute_boundaries(FloatType value)
ferencd@0: {
ferencd@0:     assert(std::isfinite(value));
ferencd@0:     assert(value > 0);
ferencd@0: 
ferencd@0:     // Convert the IEEE representation into a diyfp.
ferencd@0:     //
ferencd@0:     // If v is denormal:
ferencd@0:     //      value = 0.F * 2^(1 - bias) = (          F) * 2^(1 - bias - (p-1))
ferencd@0:     // If v is normalized:
ferencd@0:     //      value = 1.F * 2^(E - bias) = (2^(p-1) + F) * 2^(E - bias - (p-1))
ferencd@0: 
ferencd@0:     static_assert(std::numeric_limits<FloatType>::is_iec559,
ferencd@0:                   "internal error: dtoa_short requires an IEEE-754 floating-point implementation");
ferencd@0: 
ferencd@0:     constexpr int      kPrecision = std::numeric_limits<FloatType>::digits; // = p (includes the hidden bit)
ferencd@0:     constexpr int      kBias      = std::numeric_limits<FloatType>::max_exponent - 1 + (kPrecision - 1);
ferencd@0:     constexpr int      kMinExp    = 1 - kBias;
ferencd@0:     constexpr std::uint64_t kHiddenBit = std::uint64_t{1} << (kPrecision - 1); // = 2^(p-1)
ferencd@0: 
ferencd@0:     using bits_type = typename std::conditional<kPrecision == 24, std::uint32_t, std::uint64_t >::type;
ferencd@0: 
ferencd@0:     const std::uint64_t bits = reinterpret_bits<bits_type>(value);
ferencd@0:     const std::uint64_t E = bits >> (kPrecision - 1);
ferencd@0:     const std::uint64_t F = bits & (kHiddenBit - 1);
ferencd@0: 
ferencd@0:     const bool is_denormal = E == 0;
ferencd@0:     const diyfp v = is_denormal
ferencd@0:                     ? diyfp(F, kMinExp)
ferencd@0:                     : diyfp(F + kHiddenBit, static_cast<int>(E) - kBias);
ferencd@0: 
ferencd@0:     // Compute the boundaries m- and m+ of the floating-point value
ferencd@0:     // v = f * 2^e.
ferencd@0:     //
ferencd@0:     // Determine v- and v+, the floating-point predecessor and successor if v,
ferencd@0:     // respectively.
ferencd@0:     //
ferencd@0:     //      v- = v - 2^e        if f != 2^(p-1) or e == e_min                (A)
ferencd@0:     //         = v - 2^(e-1)    if f == 2^(p-1) and e > e_min                (B)
ferencd@0:     //
ferencd@0:     //      v+ = v + 2^e
ferencd@0:     //
ferencd@0:     // Let m- = (v- + v) / 2 and m+ = (v + v+) / 2. All real numbers _strictly_
ferencd@0:     // between m- and m+ round to v, regardless of how the input rounding
ferencd@0:     // algorithm breaks ties.
ferencd@0:     //
ferencd@0:     //      ---+-------------+-------------+-------------+-------------+---  (A)
ferencd@0:     //         v-            m-            v             m+            v+
ferencd@0:     //
ferencd@0:     //      -----------------+------+------+-------------+-------------+---  (B)
ferencd@0:     //                       v-     m-     v             m+            v+
ferencd@0: 
ferencd@0:     const bool lower_boundary_is_closer = F == 0 and E > 1;
ferencd@0:     const diyfp m_plus = diyfp(2 * v.f + 1, v.e - 1);
ferencd@0:     const diyfp m_minus = lower_boundary_is_closer
ferencd@0:                           ? diyfp(4 * v.f - 1, v.e - 2)  // (B)
ferencd@0:                           : diyfp(2 * v.f - 1, v.e - 1); // (A)
ferencd@0: 
ferencd@0:     // Determine the normalized w+ = m+.
ferencd@0:     const diyfp w_plus = diyfp::normalize(m_plus);
ferencd@0: 
ferencd@0:     // Determine w- = m- such that e_(w-) = e_(w+).
ferencd@0:     const diyfp w_minus = diyfp::normalize_to(m_minus, w_plus.e);
ferencd@0: 
ferencd@0:     return {diyfp::normalize(v), w_minus, w_plus};
ferencd@0: }
ferencd@0: 
ferencd@0: // Given normalized diyfp w, Grisu needs to find a (normalized) cached
ferencd@0: // power-of-ten c, such that the exponent of the product c * w = f * 2^e lies
ferencd@0: // within a certain range [alpha, gamma] (Definition 3.2 from [1])
ferencd@0: //
ferencd@0: //      alpha <= e = e_c + e_w + q <= gamma
ferencd@0: //
ferencd@0: // or
ferencd@0: //
ferencd@0: //      f_c * f_w * 2^alpha <= f_c 2^(e_c) * f_w 2^(e_w) * 2^q
ferencd@0: //                          <= f_c * f_w * 2^gamma
ferencd@0: //
ferencd@0: // Since c and w are normalized, i.e. 2^(q-1) <= f < 2^q, this implies
ferencd@0: //
ferencd@0: //      2^(q-1) * 2^(q-1) * 2^alpha <= c * w * 2^q < 2^q * 2^q * 2^gamma
ferencd@0: //
ferencd@0: // or
ferencd@0: //
ferencd@0: //      2^(q - 2 + alpha) <= c * w < 2^(q + gamma)
ferencd@0: //
ferencd@0: // The choice of (alpha,gamma) determines the size of the table and the form of
ferencd@0: // the digit generation procedure. Using (alpha,gamma)=(-60,-32) works out well
ferencd@0: // in practice:
ferencd@0: //
ferencd@0: // The idea is to cut the number c * w = f * 2^e into two parts, which can be
ferencd@0: // processed independently: An integral part p1, and a fractional part p2:
ferencd@0: //
ferencd@0: //      f * 2^e = ( (f div 2^-e) * 2^-e + (f mod 2^-e) ) * 2^e
ferencd@0: //              = (f div 2^-e) + (f mod 2^-e) * 2^e
ferencd@0: //              = p1 + p2 * 2^e
ferencd@0: //
ferencd@0: // The conversion of p1 into decimal form requires a series of divisions and
ferencd@0: // modulos by (a power of) 10. These operations are faster for 32-bit than for
ferencd@0: // 64-bit integers, so p1 should ideally fit into a 32-bit integer. This can be
ferencd@0: // achieved by choosing
ferencd@0: //
ferencd@0: //      -e >= 32   or   e <= -32 := gamma
ferencd@0: //
ferencd@0: // In order to convert the fractional part
ferencd@0: //
ferencd@0: //      p2 * 2^e = p2 / 2^-e = d[-1] / 10^1 + d[-2] / 10^2 + ...
ferencd@0: //
ferencd@0: // into decimal form, the fraction is repeatedly multiplied by 10 and the digits
ferencd@0: // d[-i] are extracted in order:
ferencd@0: //
ferencd@0: //      (10 * p2) div 2^-e = d[-1]
ferencd@0: //      (10 * p2) mod 2^-e = d[-2] / 10^1 + ...
ferencd@0: //
ferencd@0: // The multiplication by 10 must not overflow. It is sufficient to choose
ferencd@0: //
ferencd@0: //      10 * p2 < 16 * p2 = 2^4 * p2 <= 2^64.
ferencd@0: //
ferencd@0: // Since p2 = f mod 2^-e < 2^-e,
ferencd@0: //
ferencd@0: //      -e <= 60   or   e >= -60 := alpha
ferencd@0: 
ferencd@0: constexpr int kAlpha = -60;
ferencd@0: constexpr int kGamma = -32;
ferencd@0: 
ferencd@0: struct cached_power // c = f * 2^e ~= 10^k
ferencd@0: {
ferencd@0:     std::uint64_t f;
ferencd@0:     int e;
ferencd@0:     int k;
ferencd@0: };
ferencd@0: 
ferencd@0: /*!
ferencd@0: For a normalized diyfp w = f * 2^e, this function returns a (normalized) cached
ferencd@0: power-of-ten c = f_c * 2^e_c, such that the exponent of the product w * c
ferencd@0: satisfies (Definition 3.2 from [1])
ferencd@0: 
ferencd@0:      alpha <= e_c + e + q <= gamma.
ferencd@0: */
ferencd@0: inline cached_power get_cached_power_for_binary_exponent(int e)
ferencd@0: {
ferencd@0:     // Now
ferencd@0:     //
ferencd@0:     //      alpha <= e_c + e + q <= gamma                                    (1)
ferencd@0:     //      ==> f_c * 2^alpha <= c * 2^e * 2^q
ferencd@0:     //
ferencd@0:     // and since the c's are normalized, 2^(q-1) <= f_c,
ferencd@0:     //
ferencd@0:     //      ==> 2^(q - 1 + alpha) <= c * 2^(e + q)
ferencd@0:     //      ==> 2^(alpha - e - 1) <= c
ferencd@0:     //
ferencd@0:     // If c were an exakt power of ten, i.e. c = 10^k, one may determine k as
ferencd@0:     //
ferencd@0:     //      k = ceil( log_10( 2^(alpha - e - 1) ) )
ferencd@0:     //        = ceil( (alpha - e - 1) * log_10(2) )
ferencd@0:     //
ferencd@0:     // From the paper:
ferencd@0:     // "In theory the result of the procedure could be wrong since c is rounded,
ferencd@0:     //  and the computation itself is approximated [...]. In practice, however,
ferencd@0:     //  this simple function is sufficient."
ferencd@0:     //
ferencd@0:     // For IEEE double precision floating-point numbers converted into
ferencd@0:     // normalized diyfp's w = f * 2^e, with q = 64,
ferencd@0:     //
ferencd@0:     //      e >= -1022      (min IEEE exponent)
ferencd@0:     //           -52        (p - 1)
ferencd@0:     //           -52        (p - 1, possibly normalize denormal IEEE numbers)
ferencd@0:     //           -11        (normalize the diyfp)
ferencd@0:     //         = -1137
ferencd@0:     //
ferencd@0:     // and
ferencd@0:     //
ferencd@0:     //      e <= +1023      (max IEEE exponent)
ferencd@0:     //           -52        (p - 1)
ferencd@0:     //           -11        (normalize the diyfp)
ferencd@0:     //         = 960
ferencd@0:     //
ferencd@0:     // This binary exponent range [-1137,960] results in a decimal exponent
ferencd@0:     // range [-307,324]. One does not need to store a cached power for each
ferencd@0:     // k in this range. For each such k it suffices to find a cached power
ferencd@0:     // such that the exponent of the product lies in [alpha,gamma].
ferencd@0:     // This implies that the difference of the decimal exponents of adjacent
ferencd@0:     // table entries must be less than or equal to
ferencd@0:     //
ferencd@0:     //      floor( (gamma - alpha) * log_10(2) ) = 8.
ferencd@0:     //
ferencd@0:     // (A smaller distance gamma-alpha would require a larger table.)
ferencd@0: 
ferencd@0:     // NB:
ferencd@0:     // Actually this function returns c, such that -60 <= e_c + e + 64 <= -34.
ferencd@0: 
ferencd@0:     constexpr int kCachedPowersMinDecExp = -300;
ferencd@0:     constexpr int kCachedPowersDecStep = 8;
ferencd@0: 
ferencd@0:     static constexpr std::array<cached_power, 79> kCachedPowers =
ferencd@0:     {
ferencd@0:         {
ferencd@0:             { 0xAB70FE17C79AC6CA, -1060, -300 },
ferencd@0:             { 0xFF77B1FCBEBCDC4F, -1034, -292 },
ferencd@0:             { 0xBE5691EF416BD60C, -1007, -284 },
ferencd@0:             { 0x8DD01FAD907FFC3C,  -980, -276 },
ferencd@0:             { 0xD3515C2831559A83,  -954, -268 },
ferencd@0:             { 0x9D71AC8FADA6C9B5,  -927, -260 },
ferencd@0:             { 0xEA9C227723EE8BCB,  -901, -252 },
ferencd@0:             { 0xAECC49914078536D,  -874, -244 },
ferencd@0:             { 0x823C12795DB6CE57,  -847, -236 },
ferencd@0:             { 0xC21094364DFB5637,  -821, -228 },
ferencd@0:             { 0x9096EA6F3848984F,  -794, -220 },
ferencd@0:             { 0xD77485CB25823AC7,  -768, -212 },
ferencd@0:             { 0xA086CFCD97BF97F4,  -741, -204 },
ferencd@0:             { 0xEF340A98172AACE5,  -715, -196 },
ferencd@0:             { 0xB23867FB2A35B28E,  -688, -188 },
ferencd@0:             { 0x84C8D4DFD2C63F3B,  -661, -180 },
ferencd@0:             { 0xC5DD44271AD3CDBA,  -635, -172 },
ferencd@0:             { 0x936B9FCEBB25C996,  -608, -164 },
ferencd@0:             { 0xDBAC6C247D62A584,  -582, -156 },
ferencd@0:             { 0xA3AB66580D5FDAF6,  -555, -148 },
ferencd@0:             { 0xF3E2F893DEC3F126,  -529, -140 },
ferencd@0:             { 0xB5B5ADA8AAFF80B8,  -502, -132 },
ferencd@0:             { 0x87625F056C7C4A8B,  -475, -124 },
ferencd@0:             { 0xC9BCFF6034C13053,  -449, -116 },
ferencd@0:             { 0x964E858C91BA2655,  -422, -108 },
ferencd@0:             { 0xDFF9772470297EBD,  -396, -100 },
ferencd@0:             { 0xA6DFBD9FB8E5B88F,  -369,  -92 },
ferencd@0:             { 0xF8A95FCF88747D94,  -343,  -84 },
ferencd@0:             { 0xB94470938FA89BCF,  -316,  -76 },
ferencd@0:             { 0x8A08F0F8BF0F156B,  -289,  -68 },
ferencd@0:             { 0xCDB02555653131B6,  -263,  -60 },
ferencd@0:             { 0x993FE2C6D07B7FAC,  -236,  -52 },
ferencd@0:             { 0xE45C10C42A2B3B06,  -210,  -44 },
ferencd@0:             { 0xAA242499697392D3,  -183,  -36 },
ferencd@0:             { 0xFD87B5F28300CA0E,  -157,  -28 },
ferencd@0:             { 0xBCE5086492111AEB,  -130,  -20 },
ferencd@0:             { 0x8CBCCC096F5088CC,  -103,  -12 },
ferencd@0:             { 0xD1B71758E219652C,   -77,   -4 },
ferencd@0:             { 0x9C40000000000000,   -50,    4 },
ferencd@0:             { 0xE8D4A51000000000,   -24,   12 },
ferencd@0:             { 0xAD78EBC5AC620000,     3,   20 },
ferencd@0:             { 0x813F3978F8940984,    30,   28 },
ferencd@0:             { 0xC097CE7BC90715B3,    56,   36 },
ferencd@0:             { 0x8F7E32CE7BEA5C70,    83,   44 },
ferencd@0:             { 0xD5D238A4ABE98068,   109,   52 },
ferencd@0:             { 0x9F4F2726179A2245,   136,   60 },
ferencd@0:             { 0xED63A231D4C4FB27,   162,   68 },
ferencd@0:             { 0xB0DE65388CC8ADA8,   189,   76 },
ferencd@0:             { 0x83C7088E1AAB65DB,   216,   84 },
ferencd@0:             { 0xC45D1DF942711D9A,   242,   92 },
ferencd@0:             { 0x924D692CA61BE758,   269,  100 },
ferencd@0:             { 0xDA01EE641A708DEA,   295,  108 },
ferencd@0:             { 0xA26DA3999AEF774A,   322,  116 },
ferencd@0:             { 0xF209787BB47D6B85,   348,  124 },
ferencd@0:             { 0xB454E4A179DD1877,   375,  132 },
ferencd@0:             { 0x865B86925B9BC5C2,   402,  140 },
ferencd@0:             { 0xC83553C5C8965D3D,   428,  148 },
ferencd@0:             { 0x952AB45CFA97A0B3,   455,  156 },
ferencd@0:             { 0xDE469FBD99A05FE3,   481,  164 },
ferencd@0:             { 0xA59BC234DB398C25,   508,  172 },
ferencd@0:             { 0xF6C69A72A3989F5C,   534,  180 },
ferencd@0:             { 0xB7DCBF5354E9BECE,   561,  188 },
ferencd@0:             { 0x88FCF317F22241E2,   588,  196 },
ferencd@0:             { 0xCC20CE9BD35C78A5,   614,  204 },
ferencd@0:             { 0x98165AF37B2153DF,   641,  212 },
ferencd@0:             { 0xE2A0B5DC971F303A,   667,  220 },
ferencd@0:             { 0xA8D9D1535CE3B396,   694,  228 },
ferencd@0:             { 0xFB9B7CD9A4A7443C,   720,  236 },
ferencd@0:             { 0xBB764C4CA7A44410,   747,  244 },
ferencd@0:             { 0x8BAB8EEFB6409C1A,   774,  252 },
ferencd@0:             { 0xD01FEF10A657842C,   800,  260 },
ferencd@0:             { 0x9B10A4E5E9913129,   827,  268 },
ferencd@0:             { 0xE7109BFBA19C0C9D,   853,  276 },
ferencd@0:             { 0xAC2820D9623BF429,   880,  284 },
ferencd@0:             { 0x80444B5E7AA7CF85,   907,  292 },
ferencd@0:             { 0xBF21E44003ACDD2D,   933,  300 },
ferencd@0:             { 0x8E679C2F5E44FF8F,   960,  308 },
ferencd@0:             { 0xD433179D9C8CB841,   986,  316 },
ferencd@0:             { 0x9E19DB92B4E31BA9,  1013,  324 },
ferencd@0:         }
ferencd@0:     };
ferencd@0: 
ferencd@0:     // This computation gives exactly the same results for k as
ferencd@0:     //      k = ceil((kAlpha - e - 1) * 0.30102999566398114)
ferencd@0:     // for |e| <= 1500, but doesn't require floating-point operations.
ferencd@0:     // NB: log_10(2) ~= 78913 / 2^18
ferencd@0:     assert(e >= -1500);
ferencd@0:     assert(e <=  1500);
ferencd@0:     const int f = kAlpha - e - 1;
ferencd@0:     const int k = (f * 78913) / (1 << 18) + static_cast<int>(f > 0);
ferencd@0: 
ferencd@0:     const int index = (-kCachedPowersMinDecExp + k + (kCachedPowersDecStep - 1)) / kCachedPowersDecStep;
ferencd@0:     assert(index >= 0);
ferencd@0:     assert(static_cast<std::size_t>(index) < kCachedPowers.size());
ferencd@0: 
ferencd@0:     const cached_power cached = kCachedPowers[static_cast<std::size_t>(index)];
ferencd@0:     assert(kAlpha <= cached.e + e + 64);
ferencd@0:     assert(kGamma >= cached.e + e + 64);
ferencd@0: 
ferencd@0:     return cached;
ferencd@0: }
ferencd@0: 
ferencd@0: /*!
ferencd@0: For n != 0, returns k, such that pow10 := 10^(k-1) <= n < 10^k.
ferencd@0: For n == 0, returns 1 and sets pow10 := 1.
ferencd@0: */
ferencd@0: inline int find_largest_pow10(const std::uint32_t n, std::uint32_t& pow10)
ferencd@0: {
ferencd@0:     // LCOV_EXCL_START
ferencd@0:     if (n >= 1000000000)
ferencd@0:     {
ferencd@0:         pow10 = 1000000000;
ferencd@0:         return 10;
ferencd@0:     }
ferencd@0:     // LCOV_EXCL_STOP
ferencd@0:     else if (n >= 100000000)
ferencd@0:     {
ferencd@0:         pow10 = 100000000;
ferencd@0:         return  9;
ferencd@0:     }
ferencd@0:     else if (n >= 10000000)
ferencd@0:     {
ferencd@0:         pow10 = 10000000;
ferencd@0:         return  8;
ferencd@0:     }
ferencd@0:     else if (n >= 1000000)
ferencd@0:     {
ferencd@0:         pow10 = 1000000;
ferencd@0:         return  7;
ferencd@0:     }
ferencd@0:     else if (n >= 100000)
ferencd@0:     {
ferencd@0:         pow10 = 100000;
ferencd@0:         return  6;
ferencd@0:     }
ferencd@0:     else if (n >= 10000)
ferencd@0:     {
ferencd@0:         pow10 = 10000;
ferencd@0:         return  5;
ferencd@0:     }
ferencd@0:     else if (n >= 1000)
ferencd@0:     {
ferencd@0:         pow10 = 1000;
ferencd@0:         return  4;
ferencd@0:     }
ferencd@0:     else if (n >= 100)
ferencd@0:     {
ferencd@0:         pow10 = 100;
ferencd@0:         return  3;
ferencd@0:     }
ferencd@0:     else if (n >= 10)
ferencd@0:     {
ferencd@0:         pow10 = 10;
ferencd@0:         return  2;
ferencd@0:     }
ferencd@0:     else
ferencd@0:     {
ferencd@0:         pow10 = 1;
ferencd@0:         return 1;
ferencd@0:     }
ferencd@0: }
ferencd@0: 
ferencd@0: inline void grisu2_round(char* buf, int len, std::uint64_t dist, std::uint64_t delta,
ferencd@0:                          std::uint64_t rest, std::uint64_t ten_k)
ferencd@0: {
ferencd@0:     assert(len >= 1);
ferencd@0:     assert(dist <= delta);
ferencd@0:     assert(rest <= delta);
ferencd@0:     assert(ten_k > 0);
ferencd@0: 
ferencd@0:     //               <--------------------------- delta ---->
ferencd@0:     //                                  <---- dist --------->
ferencd@0:     // --------------[------------------+-------------------]--------------
ferencd@0:     //               M-                 w                   M+
ferencd@0:     //
ferencd@0:     //                                  ten_k
ferencd@0:     //                                <------>
ferencd@0:     //                                       <---- rest ---->
ferencd@0:     // --------------[------------------+----+--------------]--------------
ferencd@0:     //                                  w    V
ferencd@0:     //                                       = buf * 10^k
ferencd@0:     //
ferencd@0:     // ten_k represents a unit-in-the-last-place in the decimal representation
ferencd@0:     // stored in buf.
ferencd@0:     // Decrement buf by ten_k while this takes buf closer to w.
ferencd@0: 
ferencd@0:     // The tests are written in this order to avoid overflow in unsigned
ferencd@0:     // integer arithmetic.
ferencd@0: 
ferencd@0:     while (rest < dist
ferencd@0:             and delta - rest >= ten_k
ferencd@0:             and (rest + ten_k < dist or dist - rest > rest + ten_k - dist))
ferencd@0:     {
ferencd@0:         assert(buf[len - 1] != '0');
ferencd@0:         buf[len - 1]--;
ferencd@0:         rest += ten_k;
ferencd@0:     }
ferencd@0: }
ferencd@0: 
ferencd@0: /*!
ferencd@0: Generates V = buffer * 10^decimal_exponent, such that M- <= V <= M+.
ferencd@0: M- and M+ must be normalized and share the same exponent -60 <= e <= -32.
ferencd@0: */
ferencd@0: inline void grisu2_digit_gen(char* buffer, int& length, int& decimal_exponent,
ferencd@0:                              diyfp M_minus, diyfp w, diyfp M_plus)
ferencd@0: {
ferencd@0:     static_assert(kAlpha >= -60, "internal error");
ferencd@0:     static_assert(kGamma <= -32, "internal error");
ferencd@0: 
ferencd@0:     // Generates the digits (and the exponent) of a decimal floating-point
ferencd@0:     // number V = buffer * 10^decimal_exponent in the range [M-, M+]. The diyfp's
ferencd@0:     // w, M- and M+ share the same exponent e, which satisfies alpha <= e <= gamma.
ferencd@0:     //
ferencd@0:     //               <--------------------------- delta ---->
ferencd@0:     //                                  <---- dist --------->
ferencd@0:     // --------------[------------------+-------------------]--------------
ferencd@0:     //               M-                 w                   M+
ferencd@0:     //
ferencd@0:     // Grisu2 generates the digits of M+ from left to right and stops as soon as
ferencd@0:     // V is in [M-,M+].
ferencd@0: 
ferencd@0:     assert(M_plus.e >= kAlpha);
ferencd@0:     assert(M_plus.e <= kGamma);
ferencd@0: 
ferencd@0:     std::uint64_t delta = diyfp::sub(M_plus, M_minus).f; // (significand of (M+ - M-), implicit exponent is e)
ferencd@0:     std::uint64_t dist  = diyfp::sub(M_plus, w      ).f; // (significand of (M+ - w ), implicit exponent is e)
ferencd@0: 
ferencd@0:     // Split M+ = f * 2^e into two parts p1 and p2 (note: e < 0):
ferencd@0:     //
ferencd@0:     //      M+ = f * 2^e
ferencd@0:     //         = ((f div 2^-e) * 2^-e + (f mod 2^-e)) * 2^e
ferencd@0:     //         = ((p1        ) * 2^-e + (p2        )) * 2^e
ferencd@0:     //         = p1 + p2 * 2^e
ferencd@0: 
ferencd@0:     const diyfp one(std::uint64_t{1} << -M_plus.e, M_plus.e);
ferencd@0: 
ferencd@0:     auto p1 = static_cast<std::uint32_t>(M_plus.f >> -one.e); // p1 = f div 2^-e (Since -e >= 32, p1 fits into a 32-bit int.)
ferencd@0:     std::uint64_t p2 = M_plus.f & (one.f - 1);                    // p2 = f mod 2^-e
ferencd@0: 
ferencd@0:     // 1)
ferencd@0:     //
ferencd@0:     // Generate the digits of the integral part p1 = d[n-1]...d[1]d[0]
ferencd@0: 
ferencd@0:     assert(p1 > 0);
ferencd@0: 
ferencd@0:     std::uint32_t pow10;
ferencd@0:     const int k = find_largest_pow10(p1, pow10);
ferencd@0: 
ferencd@0:     //      10^(k-1) <= p1 < 10^k, pow10 = 10^(k-1)
ferencd@0:     //
ferencd@0:     //      p1 = (p1 div 10^(k-1)) * 10^(k-1) + (p1 mod 10^(k-1))
ferencd@0:     //         = (d[k-1]         ) * 10^(k-1) + (p1 mod 10^(k-1))
ferencd@0:     //
ferencd@0:     //      M+ = p1                                             + p2 * 2^e
ferencd@0:     //         = d[k-1] * 10^(k-1) + (p1 mod 10^(k-1))          + p2 * 2^e
ferencd@0:     //         = d[k-1] * 10^(k-1) + ((p1 mod 10^(k-1)) * 2^-e + p2) * 2^e
ferencd@0:     //         = d[k-1] * 10^(k-1) + (                         rest) * 2^e
ferencd@0:     //
ferencd@0:     // Now generate the digits d[n] of p1 from left to right (n = k-1,...,0)
ferencd@0:     //
ferencd@0:     //      p1 = d[k-1]...d[n] * 10^n + d[n-1]...d[0]
ferencd@0:     //
ferencd@0:     // but stop as soon as
ferencd@0:     //
ferencd@0:     //      rest * 2^e = (d[n-1]...d[0] * 2^-e + p2) * 2^e <= delta * 2^e
ferencd@0: 
ferencd@0:     int n = k;
ferencd@0:     while (n > 0)
ferencd@0:     {
ferencd@0:         // Invariants:
ferencd@0:         //      M+ = buffer * 10^n + (p1 + p2 * 2^e)    (buffer = 0 for n = k)
ferencd@0:         //      pow10 = 10^(n-1) <= p1 < 10^n
ferencd@0:         //
ferencd@0:         const std::uint32_t d = p1 / pow10;  // d = p1 div 10^(n-1)
ferencd@0:         const std::uint32_t r = p1 % pow10;  // r = p1 mod 10^(n-1)
ferencd@0:         //
ferencd@0:         //      M+ = buffer * 10^n + (d * 10^(n-1) + r) + p2 * 2^e
ferencd@0:         //         = (buffer * 10 + d) * 10^(n-1) + (r + p2 * 2^e)
ferencd@0:         //
ferencd@0:         assert(d <= 9);
ferencd@0:         buffer[length++] = static_cast<char>('0' + d); // buffer := buffer * 10 + d
ferencd@0:         //
ferencd@0:         //      M+ = buffer * 10^(n-1) + (r + p2 * 2^e)
ferencd@0:         //
ferencd@0:         p1 = r;
ferencd@0:         n--;
ferencd@0:         //
ferencd@0:         //      M+ = buffer * 10^n + (p1 + p2 * 2^e)
ferencd@0:         //      pow10 = 10^n
ferencd@0:         //
ferencd@0: 
ferencd@0:         // Now check if enough digits have been generated.
ferencd@0:         // Compute
ferencd@0:         //
ferencd@0:         //      p1 + p2 * 2^e = (p1 * 2^-e + p2) * 2^e = rest * 2^e
ferencd@0:         //
ferencd@0:         // Note:
ferencd@0:         // Since rest and delta share the same exponent e, it suffices to
ferencd@0:         // compare the significands.
ferencd@0:         const std::uint64_t rest = (std::uint64_t{p1} << -one.e) + p2;
ferencd@0:         if (rest <= delta)
ferencd@0:         {
ferencd@0:             // V = buffer * 10^n, with M- <= V <= M+.
ferencd@0: 
ferencd@0:             decimal_exponent += n;
ferencd@0: 
ferencd@0:             // We may now just stop. But instead look if the buffer could be
ferencd@0:             // decremented to bring V closer to w.
ferencd@0:             //
ferencd@0:             // pow10 = 10^n is now 1 ulp in the decimal representation V.
ferencd@0:             // The rounding procedure works with diyfp's with an implicit
ferencd@0:             // exponent of e.
ferencd@0:             //
ferencd@0:             //      10^n = (10^n * 2^-e) * 2^e = ulp * 2^e
ferencd@0:             //
ferencd@0:             const std::uint64_t ten_n = std::uint64_t{pow10} << -one.e;
ferencd@0:             grisu2_round(buffer, length, dist, delta, rest, ten_n);
ferencd@0: 
ferencd@0:             return;
ferencd@0:         }
ferencd@0: 
ferencd@0:         pow10 /= 10;
ferencd@0:         //
ferencd@0:         //      pow10 = 10^(n-1) <= p1 < 10^n
ferencd@0:         // Invariants restored.
ferencd@0:     }
ferencd@0: 
ferencd@0:     // 2)
ferencd@0:     //
ferencd@0:     // The digits of the integral part have been generated:
ferencd@0:     //
ferencd@0:     //      M+ = d[k-1]...d[1]d[0] + p2 * 2^e
ferencd@0:     //         = buffer            + p2 * 2^e
ferencd@0:     //
ferencd@0:     // Now generate the digits of the fractional part p2 * 2^e.
ferencd@0:     //
ferencd@0:     // Note:
ferencd@0:     // No decimal point is generated: the exponent is adjusted instead.
ferencd@0:     //
ferencd@0:     // p2 actually represents the fraction
ferencd@0:     //
ferencd@0:     //      p2 * 2^e
ferencd@0:     //          = p2 / 2^-e
ferencd@0:     //          = d[-1] / 10^1 + d[-2] / 10^2 + ...
ferencd@0:     //
ferencd@0:     // Now generate the digits d[-m] of p1 from left to right (m = 1,2,...)
ferencd@0:     //
ferencd@0:     //      p2 * 2^e = d[-1]d[-2]...d[-m] * 10^-m
ferencd@0:     //                      + 10^-m * (d[-m-1] / 10^1 + d[-m-2] / 10^2 + ...)
ferencd@0:     //
ferencd@0:     // using
ferencd@0:     //
ferencd@0:     //      10^m * p2 = ((10^m * p2) div 2^-e) * 2^-e + ((10^m * p2) mod 2^-e)
ferencd@0:     //                = (                   d) * 2^-e + (                   r)
ferencd@0:     //
ferencd@0:     // or
ferencd@0:     //      10^m * p2 * 2^e = d + r * 2^e
ferencd@0:     //
ferencd@0:     // i.e.
ferencd@0:     //
ferencd@0:     //      M+ = buffer + p2 * 2^e
ferencd@0:     //         = buffer + 10^-m * (d + r * 2^e)
ferencd@0:     //         = (buffer * 10^m + d) * 10^-m + 10^-m * r * 2^e
ferencd@0:     //
ferencd@0:     // and stop as soon as 10^-m * r * 2^e <= delta * 2^e
ferencd@0: 
ferencd@0:     assert(p2 > delta);
ferencd@0: 
ferencd@0:     int m = 0;
ferencd@0:     for (;;)
ferencd@0:     {
ferencd@0:         // Invariant:
ferencd@0:         //      M+ = buffer * 10^-m + 10^-m * (d[-m-1] / 10 + d[-m-2] / 10^2 + ...) * 2^e
ferencd@0:         //         = buffer * 10^-m + 10^-m * (p2                                 ) * 2^e
ferencd@0:         //         = buffer * 10^-m + 10^-m * (1/10 * (10 * p2)                   ) * 2^e
ferencd@0:         //         = buffer * 10^-m + 10^-m * (1/10 * ((10*p2 div 2^-e) * 2^-e + (10*p2 mod 2^-e)) * 2^e
ferencd@0:         //
ferencd@0:         assert(p2 <= (std::numeric_limits<std::uint64_t>::max)() / 10);
ferencd@0:         p2 *= 10;
ferencd@0:         const std::uint64_t d = p2 >> -one.e;     // d = (10 * p2) div 2^-e
ferencd@0:         const std::uint64_t r = p2 & (one.f - 1); // r = (10 * p2) mod 2^-e
ferencd@0:         //
ferencd@0:         //      M+ = buffer * 10^-m + 10^-m * (1/10 * (d * 2^-e + r) * 2^e
ferencd@0:         //         = buffer * 10^-m + 10^-m * (1/10 * (d + r * 2^e))
ferencd@0:         //         = (buffer * 10 + d) * 10^(-m-1) + 10^(-m-1) * r * 2^e
ferencd@0:         //
ferencd@0:         assert(d <= 9);
ferencd@0:         buffer[length++] = static_cast<char>('0' + d); // buffer := buffer * 10 + d
ferencd@0:         //
ferencd@0:         //      M+ = buffer * 10^(-m-1) + 10^(-m-1) * r * 2^e
ferencd@0:         //
ferencd@0:         p2 = r;
ferencd@0:         m++;
ferencd@0:         //
ferencd@0:         //      M+ = buffer * 10^-m + 10^-m * p2 * 2^e
ferencd@0:         // Invariant restored.
ferencd@0: 
ferencd@0:         // Check if enough digits have been generated.
ferencd@0:         //
ferencd@0:         //      10^-m * p2 * 2^e <= delta * 2^e
ferencd@0:         //              p2 * 2^e <= 10^m * delta * 2^e
ferencd@0:         //                    p2 <= 10^m * delta
ferencd@0:         delta *= 10;
ferencd@0:         dist  *= 10;
ferencd@0:         if (p2 <= delta)
ferencd@0:         {
ferencd@0:             break;
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     // V = buffer * 10^-m, with M- <= V <= M+.
ferencd@0: 
ferencd@0:     decimal_exponent -= m;
ferencd@0: 
ferencd@0:     // 1 ulp in the decimal representation is now 10^-m.
ferencd@0:     // Since delta and dist are now scaled by 10^m, we need to do the
ferencd@0:     // same with ulp in order to keep the units in sync.
ferencd@0:     //
ferencd@0:     //      10^m * 10^-m = 1 = 2^-e * 2^e = ten_m * 2^e
ferencd@0:     //
ferencd@0:     const std::uint64_t ten_m = one.f;
ferencd@0:     grisu2_round(buffer, length, dist, delta, p2, ten_m);
ferencd@0: 
ferencd@0:     // By construction this algorithm generates the shortest possible decimal
ferencd@0:     // number (Loitsch, Theorem 6.2) which rounds back to w.
ferencd@0:     // For an input number of precision p, at least
ferencd@0:     //
ferencd@0:     //      N = 1 + ceil(p * log_10(2))
ferencd@0:     //
ferencd@0:     // decimal digits are sufficient to identify all binary floating-point
ferencd@0:     // numbers (Matula, "In-and-Out conversions").
ferencd@0:     // This implies that the algorithm does not produce more than N decimal
ferencd@0:     // digits.
ferencd@0:     //
ferencd@0:     //      N = 17 for p = 53 (IEEE double precision)
ferencd@0:     //      N = 9  for p = 24 (IEEE single precision)
ferencd@0: }
ferencd@0: 
ferencd@0: /*!
ferencd@0: v = buf * 10^decimal_exponent
ferencd@0: len is the length of the buffer (number of decimal digits)
ferencd@0: The buffer must be large enough, i.e. >= max_digits10.
ferencd@0: */
ferencd@0: JSON_HEDLEY_NON_NULL(1)
ferencd@0: inline void grisu2(char* buf, int& len, int& decimal_exponent,
ferencd@0:                    diyfp m_minus, diyfp v, diyfp m_plus)
ferencd@0: {
ferencd@0:     assert(m_plus.e == m_minus.e);
ferencd@0:     assert(m_plus.e == v.e);
ferencd@0: 
ferencd@0:     //  --------(-----------------------+-----------------------)--------    (A)
ferencd@0:     //          m-                      v                       m+
ferencd@0:     //
ferencd@0:     //  --------------------(-----------+-----------------------)--------    (B)
ferencd@0:     //                      m-          v                       m+
ferencd@0:     //
ferencd@0:     // First scale v (and m- and m+) such that the exponent is in the range
ferencd@0:     // [alpha, gamma].
ferencd@0: 
ferencd@0:     const cached_power cached = get_cached_power_for_binary_exponent(m_plus.e);
ferencd@0: 
ferencd@0:     const diyfp c_minus_k(cached.f, cached.e); // = c ~= 10^-k
ferencd@0: 
ferencd@0:     // The exponent of the products is = v.e + c_minus_k.e + q and is in the range [alpha,gamma]
ferencd@0:     const diyfp w       = diyfp::mul(v,       c_minus_k);
ferencd@0:     const diyfp w_minus = diyfp::mul(m_minus, c_minus_k);
ferencd@0:     const diyfp w_plus  = diyfp::mul(m_plus,  c_minus_k);
ferencd@0: 
ferencd@0:     //  ----(---+---)---------------(---+---)---------------(---+---)----
ferencd@0:     //          w-                      w                       w+
ferencd@0:     //          = c*m-                  = c*v                   = c*m+
ferencd@0:     //
ferencd@0:     // diyfp::mul rounds its result and c_minus_k is approximated too. w, w- and
ferencd@0:     // w+ are now off by a small amount.
ferencd@0:     // In fact:
ferencd@0:     //
ferencd@0:     //      w - v * 10^k < 1 ulp
ferencd@0:     //
ferencd@0:     // To account for this inaccuracy, add resp. subtract 1 ulp.
ferencd@0:     //
ferencd@0:     //  --------+---[---------------(---+---)---------------]---+--------
ferencd@0:     //          w-  M-                  w                   M+  w+
ferencd@0:     //
ferencd@0:     // Now any number in [M-, M+] (bounds included) will round to w when input,
ferencd@0:     // regardless of how the input rounding algorithm breaks ties.
ferencd@0:     //
ferencd@0:     // And digit_gen generates the shortest possible such number in [M-, M+].
ferencd@0:     // Note that this does not mean that Grisu2 always generates the shortest
ferencd@0:     // possible number in the interval (m-, m+).
ferencd@0:     const diyfp M_minus(w_minus.f + 1, w_minus.e);
ferencd@0:     const diyfp M_plus (w_plus.f  - 1, w_plus.e );
ferencd@0: 
ferencd@0:     decimal_exponent = -cached.k; // = -(-k) = k
ferencd@0: 
ferencd@0:     grisu2_digit_gen(buf, len, decimal_exponent, M_minus, w, M_plus);
ferencd@0: }
ferencd@0: 
ferencd@0: /*!
ferencd@0: v = buf * 10^decimal_exponent
ferencd@0: len is the length of the buffer (number of decimal digits)
ferencd@0: The buffer must be large enough, i.e. >= max_digits10.
ferencd@0: */
ferencd@0: template <typename FloatType>
ferencd@0: JSON_HEDLEY_NON_NULL(1)
ferencd@0: void grisu2(char* buf, int& len, int& decimal_exponent, FloatType value)
ferencd@0: {
ferencd@0:     static_assert(diyfp::kPrecision >= std::numeric_limits<FloatType>::digits + 3,
ferencd@0:                   "internal error: not enough precision");
ferencd@0: 
ferencd@0:     assert(std::isfinite(value));
ferencd@0:     assert(value > 0);
ferencd@0: 
ferencd@0:     // If the neighbors (and boundaries) of 'value' are always computed for double-precision
ferencd@0:     // numbers, all float's can be recovered using strtod (and strtof). However, the resulting
ferencd@0:     // decimal representations are not exactly "short".
ferencd@0:     //
ferencd@0:     // The documentation for 'std::to_chars' (https://en.cppreference.com/w/cpp/utility/to_chars)
ferencd@0:     // says "value is converted to a string as if by std::sprintf in the default ("C") locale"
ferencd@0:     // and since sprintf promotes float's to double's, I think this is exactly what 'std::to_chars'
ferencd@0:     // does.
ferencd@0:     // On the other hand, the documentation for 'std::to_chars' requires that "parsing the
ferencd@0:     // representation using the corresponding std::from_chars function recovers value exactly". That
ferencd@0:     // indicates that single precision floating-point numbers should be recovered using
ferencd@0:     // 'std::strtof'.
ferencd@0:     //
ferencd@0:     // NB: If the neighbors are computed for single-precision numbers, there is a single float
ferencd@0:     //     (7.0385307e-26f) which can't be recovered using strtod. The resulting double precision
ferencd@0:     //     value is off by 1 ulp.
ferencd@0: #if 0
ferencd@0:     const boundaries w = compute_boundaries(static_cast<double>(value));
ferencd@0: #else
ferencd@0:     const boundaries w = compute_boundaries(value);
ferencd@0: #endif
ferencd@0: 
ferencd@0:     grisu2(buf, len, decimal_exponent, w.minus, w.w, w.plus);
ferencd@0: }
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief appends a decimal representation of e to buf
ferencd@0: @return a pointer to the element following the exponent.
ferencd@0: @pre -1000 < e < 1000
ferencd@0: */
ferencd@0: JSON_HEDLEY_NON_NULL(1)
ferencd@0: JSON_HEDLEY_RETURNS_NON_NULL
ferencd@0: inline char* append_exponent(char* buf, int e)
ferencd@0: {
ferencd@0:     assert(e > -1000);
ferencd@0:     assert(e <  1000);
ferencd@0: 
ferencd@0:     if (e < 0)
ferencd@0:     {
ferencd@0:         e = -e;
ferencd@0:         *buf++ = '-';
ferencd@0:     }
ferencd@0:     else
ferencd@0:     {
ferencd@0:         *buf++ = '+';
ferencd@0:     }
ferencd@0: 
ferencd@0:     auto k = static_cast<std::uint32_t>(e);
ferencd@0:     if (k < 10)
ferencd@0:     {
ferencd@0:         // Always print at least two digits in the exponent.
ferencd@0:         // This is for compatibility with printf("%g").
ferencd@0:         *buf++ = '0';
ferencd@0:         *buf++ = static_cast<char>('0' + k);
ferencd@0:     }
ferencd@0:     else if (k < 100)
ferencd@0:     {
ferencd@0:         *buf++ = static_cast<char>('0' + k / 10);
ferencd@0:         k %= 10;
ferencd@0:         *buf++ = static_cast<char>('0' + k);
ferencd@0:     }
ferencd@0:     else
ferencd@0:     {
ferencd@0:         *buf++ = static_cast<char>('0' + k / 100);
ferencd@0:         k %= 100;
ferencd@0:         *buf++ = static_cast<char>('0' + k / 10);
ferencd@0:         k %= 10;
ferencd@0:         *buf++ = static_cast<char>('0' + k);
ferencd@0:     }
ferencd@0: 
ferencd@0:     return buf;
ferencd@0: }
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief prettify v = buf * 10^decimal_exponent
ferencd@0: 
ferencd@0: If v is in the range [10^min_exp, 10^max_exp) it will be printed in fixed-point
ferencd@0: notation. Otherwise it will be printed in exponential notation.
ferencd@0: 
ferencd@0: @pre min_exp < 0
ferencd@0: @pre max_exp > 0
ferencd@0: */
ferencd@0: JSON_HEDLEY_NON_NULL(1)
ferencd@0: JSON_HEDLEY_RETURNS_NON_NULL
ferencd@0: inline char* format_buffer(char* buf, int len, int decimal_exponent,
ferencd@0:                            int min_exp, int max_exp)
ferencd@0: {
ferencd@0:     assert(min_exp < 0);
ferencd@0:     assert(max_exp > 0);
ferencd@0: 
ferencd@0:     const int k = len;
ferencd@0:     const int n = len + decimal_exponent;
ferencd@0: 
ferencd@0:     // v = buf * 10^(n-k)
ferencd@0:     // k is the length of the buffer (number of decimal digits)
ferencd@0:     // n is the position of the decimal point relative to the start of the buffer.
ferencd@0: 
ferencd@0:     if (k <= n and n <= max_exp)
ferencd@0:     {
ferencd@0:         // digits[000]
ferencd@0:         // len <= max_exp + 2
ferencd@0: 
ferencd@0:         std::memset(buf + k, '0', static_cast<size_t>(n - k));
ferencd@0:         // Make it look like a floating-point number (#362, #378)
ferencd@0:         buf[n + 0] = '.';
ferencd@0:         buf[n + 1] = '0';
ferencd@0:         return buf + (n + 2);
ferencd@0:     }
ferencd@0: 
ferencd@0:     if (0 < n and n <= max_exp)
ferencd@0:     {
ferencd@0:         // dig.its
ferencd@0:         // len <= max_digits10 + 1
ferencd@0: 
ferencd@0:         assert(k > n);
ferencd@0: 
ferencd@0:         std::memmove(buf + (n + 1), buf + n, static_cast<size_t>(k - n));
ferencd@0:         buf[n] = '.';
ferencd@0:         return buf + (k + 1);
ferencd@0:     }
ferencd@0: 
ferencd@0:     if (min_exp < n and n <= 0)
ferencd@0:     {
ferencd@0:         // 0.[000]digits
ferencd@0:         // len <= 2 + (-min_exp - 1) + max_digits10
ferencd@0: 
ferencd@0:         std::memmove(buf + (2 + -n), buf, static_cast<size_t>(k));
ferencd@0:         buf[0] = '0';
ferencd@0:         buf[1] = '.';
ferencd@0:         std::memset(buf + 2, '0', static_cast<size_t>(-n));
ferencd@0:         return buf + (2 + (-n) + k);
ferencd@0:     }
ferencd@0: 
ferencd@0:     if (k == 1)
ferencd@0:     {
ferencd@0:         // dE+123
ferencd@0:         // len <= 1 + 5
ferencd@0: 
ferencd@0:         buf += 1;
ferencd@0:     }
ferencd@0:     else
ferencd@0:     {
ferencd@0:         // d.igitsE+123
ferencd@0:         // len <= max_digits10 + 1 + 5
ferencd@0: 
ferencd@0:         std::memmove(buf + 2, buf + 1, static_cast<size_t>(k - 1));
ferencd@0:         buf[1] = '.';
ferencd@0:         buf += 1 + k;
ferencd@0:     }
ferencd@0: 
ferencd@0:     *buf++ = 'e';
ferencd@0:     return append_exponent(buf, n - 1);
ferencd@0: }
ferencd@0: 
ferencd@0: } // namespace dtoa_impl
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief generates a decimal representation of the floating-point number value in [first, last).
ferencd@0: 
ferencd@0: The format of the resulting decimal representation is similar to printf's %g
ferencd@0: format. Returns an iterator pointing past-the-end of the decimal representation.
ferencd@0: 
ferencd@0: @note The input number must be finite, i.e. NaN's and Inf's are not supported.
ferencd@0: @note The buffer must be large enough.
ferencd@0: @note The result is NOT null-terminated.
ferencd@0: */
ferencd@0: template <typename FloatType>
ferencd@0: JSON_HEDLEY_NON_NULL(1, 2)
ferencd@0: JSON_HEDLEY_RETURNS_NON_NULL
ferencd@0: char* to_chars(char* first, const char* last, FloatType value)
ferencd@0: {
ferencd@0:     static_cast<void>(last); // maybe unused - fix warning
ferencd@0:     assert(std::isfinite(value));
ferencd@0: 
ferencd@0:     // Use signbit(value) instead of (value < 0) since signbit works for -0.
ferencd@0:     if (std::signbit(value))
ferencd@0:     {
ferencd@0:         value = -value;
ferencd@0:         *first++ = '-';
ferencd@0:     }
ferencd@0: 
ferencd@0:     if (value == 0) // +-0
ferencd@0:     {
ferencd@0:         *first++ = '0';
ferencd@0:         // Make it look like a floating-point number (#362, #378)
ferencd@0:         *first++ = '.';
ferencd@0:         *first++ = '0';
ferencd@0:         return first;
ferencd@0:     }
ferencd@0: 
ferencd@0:     assert(last - first >= std::numeric_limits<FloatType>::max_digits10);
ferencd@0: 
ferencd@0:     // Compute v = buffer * 10^decimal_exponent.
ferencd@0:     // The decimal digits are stored in the buffer, which needs to be interpreted
ferencd@0:     // as an unsigned decimal integer.
ferencd@0:     // len is the length of the buffer, i.e. the number of decimal digits.
ferencd@0:     int len = 0;
ferencd@0:     int decimal_exponent = 0;
ferencd@0:     dtoa_impl::grisu2(first, len, decimal_exponent, value);
ferencd@0: 
ferencd@0:     assert(len <= std::numeric_limits<FloatType>::max_digits10);
ferencd@0: 
ferencd@0:     // Format the buffer like printf("%.*g", prec, value)
ferencd@0:     constexpr int kMinExp = -4;
ferencd@0:     // Use digits10 here to increase compatibility with version 2.
ferencd@0:     constexpr int kMaxExp = std::numeric_limits<FloatType>::digits10;
ferencd@0: 
ferencd@0:     assert(last - first >= kMaxExp + 2);
ferencd@0:     assert(last - first >= 2 + (-kMinExp - 1) + std::numeric_limits<FloatType>::max_digits10);
ferencd@0:     assert(last - first >= std::numeric_limits<FloatType>::max_digits10 + 6);
ferencd@0: 
ferencd@0:     return dtoa_impl::format_buffer(first, len, decimal_exponent, kMinExp, kMaxExp);
ferencd@0: }
ferencd@0: 
ferencd@0: } // namespace detail
ferencd@0: } // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/exceptions.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/macro_scope.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/meta/cpp_future.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/output/binary_writer.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/output/output_adapters.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/value_t.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: ///////////////////
ferencd@0: // serialization //
ferencd@0: ///////////////////
ferencd@0: 
ferencd@0: /// how to treat decoding errors
ferencd@0: enum class error_handler_t
ferencd@0: {
ferencd@0:     strict,  ///< throw a type_error exception in case of invalid UTF-8
ferencd@0:     replace, ///< replace invalid UTF-8 sequences with U+FFFD
ferencd@0:     ignore   ///< ignore invalid UTF-8 sequences
ferencd@0: };
ferencd@0: 
ferencd@0: template<typename BasicJsonType>
ferencd@0: class serializer
ferencd@0: {
ferencd@0:     using string_t = typename BasicJsonType::string_t;
ferencd@0:     using number_float_t = typename BasicJsonType::number_float_t;
ferencd@0:     using number_integer_t = typename BasicJsonType::number_integer_t;
ferencd@0:     using number_unsigned_t = typename BasicJsonType::number_unsigned_t;
ferencd@0:     static constexpr std::uint8_t UTF8_ACCEPT = 0;
ferencd@0:     static constexpr std::uint8_t UTF8_REJECT = 1;
ferencd@0: 
ferencd@0:   public:
ferencd@0:     /*!
ferencd@0:     @param[in] s  output stream to serialize to
ferencd@0:     @param[in] ichar  indentation character to use
ferencd@0:     @param[in] error_handler_  how to react on decoding errors
ferencd@0:     */
ferencd@0:     serializer(output_adapter_t<char> s, const char ichar,
ferencd@0:                error_handler_t error_handler_ = error_handler_t::strict)
ferencd@0:         : o(std::move(s))
ferencd@0:         , loc(std::localeconv())
ferencd@0:         , thousands_sep(loc->thousands_sep == nullptr ? '\0' : * (loc->thousands_sep))
ferencd@0:         , decimal_point(loc->decimal_point == nullptr ? '\0' : * (loc->decimal_point))
ferencd@0:         , indent_char(ichar)
ferencd@0:         , indent_string(512, indent_char)
ferencd@0:         , error_handler(error_handler_)
ferencd@0:     {}
ferencd@0: 
ferencd@0:     // delete because of pointer members
ferencd@0:     serializer(const serializer&) = delete;
ferencd@0:     serializer& operator=(const serializer&) = delete;
ferencd@0:     serializer(serializer&&) = delete;
ferencd@0:     serializer& operator=(serializer&&) = delete;
ferencd@0:     ~serializer() = default;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief internal implementation of the serialization function
ferencd@0: 
ferencd@0:     This function is called by the public member function dump and organizes
ferencd@0:     the serialization internally. The indentation level is propagated as
ferencd@0:     additional parameter. In case of arrays and objects, the function is
ferencd@0:     called recursively.
ferencd@0: 
ferencd@0:     - strings and object keys are escaped using `escape_string()`
ferencd@0:     - integer numbers are converted implicitly via `operator<<`
ferencd@0:     - floating-point numbers are converted to a string using `"%g"` format
ferencd@0: 
ferencd@0:     @param[in] val             value to serialize
ferencd@0:     @param[in] pretty_print    whether the output shall be pretty-printed
ferencd@0:     @param[in] indent_step     the indent level
ferencd@0:     @param[in] current_indent  the current indent level (only used internally)
ferencd@0:     */
ferencd@0:     void dump(const BasicJsonType& val, const bool pretty_print,
ferencd@0:               const bool ensure_ascii,
ferencd@0:               const unsigned int indent_step,
ferencd@0:               const unsigned int current_indent = 0)
ferencd@0:     {
ferencd@0:         switch (val.m_type)
ferencd@0:         {
ferencd@0:             case value_t::object:
ferencd@0:             {
ferencd@0:                 if (val.m_value.object->empty())
ferencd@0:                 {
ferencd@0:                     o->write_characters("{}", 2);
ferencd@0:                     return;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 if (pretty_print)
ferencd@0:                 {
ferencd@0:                     o->write_characters("{\n", 2);
ferencd@0: 
ferencd@0:                     // variable to hold indentation for recursive calls
ferencd@0:                     const auto new_indent = current_indent + indent_step;
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(indent_string.size() < new_indent))
ferencd@0:                     {
ferencd@0:                         indent_string.resize(indent_string.size() * 2, ' ');
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     // first n-1 elements
ferencd@0:                     auto i = val.m_value.object->cbegin();
ferencd@0:                     for (std::size_t cnt = 0; cnt < val.m_value.object->size() - 1; ++cnt, ++i)
ferencd@0:                     {
ferencd@0:                         o->write_characters(indent_string.c_str(), new_indent);
ferencd@0:                         o->write_character('\"');
ferencd@0:                         dump_escaped(i->first, ensure_ascii);
ferencd@0:                         o->write_characters("\": ", 3);
ferencd@0:                         dump(i->second, true, ensure_ascii, indent_step, new_indent);
ferencd@0:                         o->write_characters(",\n", 2);
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     // last element
ferencd@0:                     assert(i != val.m_value.object->cend());
ferencd@0:                     assert(std::next(i) == val.m_value.object->cend());
ferencd@0:                     o->write_characters(indent_string.c_str(), new_indent);
ferencd@0:                     o->write_character('\"');
ferencd@0:                     dump_escaped(i->first, ensure_ascii);
ferencd@0:                     o->write_characters("\": ", 3);
ferencd@0:                     dump(i->second, true, ensure_ascii, indent_step, new_indent);
ferencd@0: 
ferencd@0:                     o->write_character('\n');
ferencd@0:                     o->write_characters(indent_string.c_str(), current_indent);
ferencd@0:                     o->write_character('}');
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     o->write_character('{');
ferencd@0: 
ferencd@0:                     // first n-1 elements
ferencd@0:                     auto i = val.m_value.object->cbegin();
ferencd@0:                     for (std::size_t cnt = 0; cnt < val.m_value.object->size() - 1; ++cnt, ++i)
ferencd@0:                     {
ferencd@0:                         o->write_character('\"');
ferencd@0:                         dump_escaped(i->first, ensure_ascii);
ferencd@0:                         o->write_characters("\":", 2);
ferencd@0:                         dump(i->second, false, ensure_ascii, indent_step, current_indent);
ferencd@0:                         o->write_character(',');
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     // last element
ferencd@0:                     assert(i != val.m_value.object->cend());
ferencd@0:                     assert(std::next(i) == val.m_value.object->cend());
ferencd@0:                     o->write_character('\"');
ferencd@0:                     dump_escaped(i->first, ensure_ascii);
ferencd@0:                     o->write_characters("\":", 2);
ferencd@0:                     dump(i->second, false, ensure_ascii, indent_step, current_indent);
ferencd@0: 
ferencd@0:                     o->write_character('}');
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 return;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 if (val.m_value.array->empty())
ferencd@0:                 {
ferencd@0:                     o->write_characters("[]", 2);
ferencd@0:                     return;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 if (pretty_print)
ferencd@0:                 {
ferencd@0:                     o->write_characters("[\n", 2);
ferencd@0: 
ferencd@0:                     // variable to hold indentation for recursive calls
ferencd@0:                     const auto new_indent = current_indent + indent_step;
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(indent_string.size() < new_indent))
ferencd@0:                     {
ferencd@0:                         indent_string.resize(indent_string.size() * 2, ' ');
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     // first n-1 elements
ferencd@0:                     for (auto i = val.m_value.array->cbegin();
ferencd@0:                             i != val.m_value.array->cend() - 1; ++i)
ferencd@0:                     {
ferencd@0:                         o->write_characters(indent_string.c_str(), new_indent);
ferencd@0:                         dump(*i, true, ensure_ascii, indent_step, new_indent);
ferencd@0:                         o->write_characters(",\n", 2);
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     // last element
ferencd@0:                     assert(not val.m_value.array->empty());
ferencd@0:                     o->write_characters(indent_string.c_str(), new_indent);
ferencd@0:                     dump(val.m_value.array->back(), true, ensure_ascii, indent_step, new_indent);
ferencd@0: 
ferencd@0:                     o->write_character('\n');
ferencd@0:                     o->write_characters(indent_string.c_str(), current_indent);
ferencd@0:                     o->write_character(']');
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     o->write_character('[');
ferencd@0: 
ferencd@0:                     // first n-1 elements
ferencd@0:                     for (auto i = val.m_value.array->cbegin();
ferencd@0:                             i != val.m_value.array->cend() - 1; ++i)
ferencd@0:                     {
ferencd@0:                         dump(*i, false, ensure_ascii, indent_step, current_indent);
ferencd@0:                         o->write_character(',');
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     // last element
ferencd@0:                     assert(not val.m_value.array->empty());
ferencd@0:                     dump(val.m_value.array->back(), false, ensure_ascii, indent_step, current_indent);
ferencd@0: 
ferencd@0:                     o->write_character(']');
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 return;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::string:
ferencd@0:             {
ferencd@0:                 o->write_character('\"');
ferencd@0:                 dump_escaped(*val.m_value.string, ensure_ascii);
ferencd@0:                 o->write_character('\"');
ferencd@0:                 return;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::boolean:
ferencd@0:             {
ferencd@0:                 if (val.m_value.boolean)
ferencd@0:                 {
ferencd@0:                     o->write_characters("true", 4);
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     o->write_characters("false", 5);
ferencd@0:                 }
ferencd@0:                 return;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::number_integer:
ferencd@0:             {
ferencd@0:                 dump_integer(val.m_value.number_integer);
ferencd@0:                 return;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::number_unsigned:
ferencd@0:             {
ferencd@0:                 dump_integer(val.m_value.number_unsigned);
ferencd@0:                 return;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::number_float:
ferencd@0:             {
ferencd@0:                 dump_float(val.m_value.number_float);
ferencd@0:                 return;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::discarded:
ferencd@0:             {
ferencd@0:                 o->write_characters("<discarded>", 11);
ferencd@0:                 return;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::null:
ferencd@0:             {
ferencd@0:                 o->write_characters("null", 4);
ferencd@0:                 return;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:            // LCOV_EXCL_LINE
ferencd@0:                 assert(false);  // LCOV_EXCL_LINE
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     /*!
ferencd@0:     @brief dump escaped string
ferencd@0: 
ferencd@0:     Escape a string by replacing certain special characters by a sequence of an
ferencd@0:     escape character (backslash) and another character and other control
ferencd@0:     characters by a sequence of "\u" followed by a four-digit hex
ferencd@0:     representation. The escaped string is written to output stream @a o.
ferencd@0: 
ferencd@0:     @param[in] s  the string to escape
ferencd@0:     @param[in] ensure_ascii  whether to escape non-ASCII characters with
ferencd@0:                              \uXXXX sequences
ferencd@0: 
ferencd@0:     @complexity Linear in the length of string @a s.
ferencd@0:     */
ferencd@0:     void dump_escaped(const string_t& s, const bool ensure_ascii)
ferencd@0:     {
ferencd@0:         std::uint32_t codepoint;
ferencd@0:         std::uint8_t state = UTF8_ACCEPT;
ferencd@0:         std::size_t bytes = 0;  // number of bytes written to string_buffer
ferencd@0: 
ferencd@0:         // number of bytes written at the point of the last valid byte
ferencd@0:         std::size_t bytes_after_last_accept = 0;
ferencd@0:         std::size_t undumped_chars = 0;
ferencd@0: 
ferencd@0:         for (std::size_t i = 0; i < s.size(); ++i)
ferencd@0:         {
ferencd@0:             const auto byte = static_cast<uint8_t>(s[i]);
ferencd@0: 
ferencd@0:             switch (decode(state, codepoint, byte))
ferencd@0:             {
ferencd@0:                 case UTF8_ACCEPT:  // decode found a new code point
ferencd@0:                 {
ferencd@0:                     switch (codepoint)
ferencd@0:                     {
ferencd@0:                         case 0x08: // backspace
ferencd@0:                         {
ferencd@0:                             string_buffer[bytes++] = '\\';
ferencd@0:                             string_buffer[bytes++] = 'b';
ferencd@0:                             break;
ferencd@0:                         }
ferencd@0: 
ferencd@0:                         case 0x09: // horizontal tab
ferencd@0:                         {
ferencd@0:                             string_buffer[bytes++] = '\\';
ferencd@0:                             string_buffer[bytes++] = 't';
ferencd@0:                             break;
ferencd@0:                         }
ferencd@0: 
ferencd@0:                         case 0x0A: // newline
ferencd@0:                         {
ferencd@0:                             string_buffer[bytes++] = '\\';
ferencd@0:                             string_buffer[bytes++] = 'n';
ferencd@0:                             break;
ferencd@0:                         }
ferencd@0: 
ferencd@0:                         case 0x0C: // formfeed
ferencd@0:                         {
ferencd@0:                             string_buffer[bytes++] = '\\';
ferencd@0:                             string_buffer[bytes++] = 'f';
ferencd@0:                             break;
ferencd@0:                         }
ferencd@0: 
ferencd@0:                         case 0x0D: // carriage return
ferencd@0:                         {
ferencd@0:                             string_buffer[bytes++] = '\\';
ferencd@0:                             string_buffer[bytes++] = 'r';
ferencd@0:                             break;
ferencd@0:                         }
ferencd@0: 
ferencd@0:                         case 0x22: // quotation mark
ferencd@0:                         {
ferencd@0:                             string_buffer[bytes++] = '\\';
ferencd@0:                             string_buffer[bytes++] = '\"';
ferencd@0:                             break;
ferencd@0:                         }
ferencd@0: 
ferencd@0:                         case 0x5C: // reverse solidus
ferencd@0:                         {
ferencd@0:                             string_buffer[bytes++] = '\\';
ferencd@0:                             string_buffer[bytes++] = '\\';
ferencd@0:                             break;
ferencd@0:                         }
ferencd@0: 
ferencd@0:                         default:
ferencd@0:                         {
ferencd@0:                             // escape control characters (0x00..0x1F) or, if
ferencd@0:                             // ensure_ascii parameter is used, non-ASCII characters
ferencd@0:                             if ((codepoint <= 0x1F) or (ensure_ascii and (codepoint >= 0x7F)))
ferencd@0:                             {
ferencd@0:                                 if (codepoint <= 0xFFFF)
ferencd@0:                                 {
ferencd@0:                                     (std::snprintf)(string_buffer.data() + bytes, 7, "\\u%04x",
ferencd@0:                                                     static_cast<std::uint16_t>(codepoint));
ferencd@0:                                     bytes += 6;
ferencd@0:                                 }
ferencd@0:                                 else
ferencd@0:                                 {
ferencd@0:                                     (std::snprintf)(string_buffer.data() + bytes, 13, "\\u%04x\\u%04x",
ferencd@0:                                                     static_cast<std::uint16_t>(0xD7C0u + (codepoint >> 10u)),
ferencd@0:                                                     static_cast<std::uint16_t>(0xDC00u + (codepoint & 0x3FFu)));
ferencd@0:                                     bytes += 12;
ferencd@0:                                 }
ferencd@0:                             }
ferencd@0:                             else
ferencd@0:                             {
ferencd@0:                                 // copy byte to buffer (all previous bytes
ferencd@0:                                 // been copied have in default case above)
ferencd@0:                                 string_buffer[bytes++] = s[i];
ferencd@0:                             }
ferencd@0:                             break;
ferencd@0:                         }
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     // write buffer and reset index; there must be 13 bytes
ferencd@0:                     // left, as this is the maximal number of bytes to be
ferencd@0:                     // written ("\uxxxx\uxxxx\0") for one code point
ferencd@0:                     if (string_buffer.size() - bytes < 13)
ferencd@0:                     {
ferencd@0:                         o->write_characters(string_buffer.data(), bytes);
ferencd@0:                         bytes = 0;
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     // remember the byte position of this accept
ferencd@0:                     bytes_after_last_accept = bytes;
ferencd@0:                     undumped_chars = 0;
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case UTF8_REJECT:  // decode found invalid UTF-8 byte
ferencd@0:                 {
ferencd@0:                     switch (error_handler)
ferencd@0:                     {
ferencd@0:                         case error_handler_t::strict:
ferencd@0:                         {
ferencd@0:                             std::string sn(3, '\0');
ferencd@0:                             (std::snprintf)(&sn[0], sn.size(), "%.2X", byte);
ferencd@0:                             JSON_THROW(type_error::create(316, "invalid UTF-8 byte at index " + std::to_string(i) + ": 0x" + sn));
ferencd@0:                         }
ferencd@0: 
ferencd@0:                         case error_handler_t::ignore:
ferencd@0:                         case error_handler_t::replace:
ferencd@0:                         {
ferencd@0:                             // in case we saw this character the first time, we
ferencd@0:                             // would like to read it again, because the byte
ferencd@0:                             // may be OK for itself, but just not OK for the
ferencd@0:                             // previous sequence
ferencd@0:                             if (undumped_chars > 0)
ferencd@0:                             {
ferencd@0:                                 --i;
ferencd@0:                             }
ferencd@0: 
ferencd@0:                             // reset length buffer to the last accepted index;
ferencd@0:                             // thus removing/ignoring the invalid characters
ferencd@0:                             bytes = bytes_after_last_accept;
ferencd@0: 
ferencd@0:                             if (error_handler == error_handler_t::replace)
ferencd@0:                             {
ferencd@0:                                 // add a replacement character
ferencd@0:                                 if (ensure_ascii)
ferencd@0:                                 {
ferencd@0:                                     string_buffer[bytes++] = '\\';
ferencd@0:                                     string_buffer[bytes++] = 'u';
ferencd@0:                                     string_buffer[bytes++] = 'f';
ferencd@0:                                     string_buffer[bytes++] = 'f';
ferencd@0:                                     string_buffer[bytes++] = 'f';
ferencd@0:                                     string_buffer[bytes++] = 'd';
ferencd@0:                                 }
ferencd@0:                                 else
ferencd@0:                                 {
ferencd@0:                                     string_buffer[bytes++] = detail::binary_writer<BasicJsonType, char>::to_char_type('\xEF');
ferencd@0:                                     string_buffer[bytes++] = detail::binary_writer<BasicJsonType, char>::to_char_type('\xBF');
ferencd@0:                                     string_buffer[bytes++] = detail::binary_writer<BasicJsonType, char>::to_char_type('\xBD');
ferencd@0:                                 }
ferencd@0: 
ferencd@0:                                 // write buffer and reset index; there must be 13 bytes
ferencd@0:                                 // left, as this is the maximal number of bytes to be
ferencd@0:                                 // written ("\uxxxx\uxxxx\0") for one code point
ferencd@0:                                 if (string_buffer.size() - bytes < 13)
ferencd@0:                                 {
ferencd@0:                                     o->write_characters(string_buffer.data(), bytes);
ferencd@0:                                     bytes = 0;
ferencd@0:                                 }
ferencd@0: 
ferencd@0:                                 bytes_after_last_accept = bytes;
ferencd@0:                             }
ferencd@0: 
ferencd@0:                             undumped_chars = 0;
ferencd@0: 
ferencd@0:                             // continue processing the string
ferencd@0:                             state = UTF8_ACCEPT;
ferencd@0:                             break;
ferencd@0:                         }
ferencd@0: 
ferencd@0:                         default:            // LCOV_EXCL_LINE
ferencd@0:                             assert(false);  // LCOV_EXCL_LINE
ferencd@0:                     }
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 default:  // decode found yet incomplete multi-byte code point
ferencd@0:                 {
ferencd@0:                     if (not ensure_ascii)
ferencd@0:                     {
ferencd@0:                         // code point will not be escaped - copy byte to buffer
ferencd@0:                         string_buffer[bytes++] = s[i];
ferencd@0:                     }
ferencd@0:                     ++undumped_chars;
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         // we finished processing the string
ferencd@0:         if (JSON_HEDLEY_LIKELY(state == UTF8_ACCEPT))
ferencd@0:         {
ferencd@0:             // write buffer
ferencd@0:             if (bytes > 0)
ferencd@0:             {
ferencd@0:                 o->write_characters(string_buffer.data(), bytes);
ferencd@0:             }
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             // we finish reading, but do not accept: string was incomplete
ferencd@0:             switch (error_handler)
ferencd@0:             {
ferencd@0:                 case error_handler_t::strict:
ferencd@0:                 {
ferencd@0:                     std::string sn(3, '\0');
ferencd@0:                     (std::snprintf)(&sn[0], sn.size(), "%.2X", static_cast<std::uint8_t>(s.back()));
ferencd@0:                     JSON_THROW(type_error::create(316, "incomplete UTF-8 string; last byte: 0x" + sn));
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case error_handler_t::ignore:
ferencd@0:                 {
ferencd@0:                     // write all accepted bytes
ferencd@0:                     o->write_characters(string_buffer.data(), bytes_after_last_accept);
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case error_handler_t::replace:
ferencd@0:                 {
ferencd@0:                     // write all accepted bytes
ferencd@0:                     o->write_characters(string_buffer.data(), bytes_after_last_accept);
ferencd@0:                     // add a replacement character
ferencd@0:                     if (ensure_ascii)
ferencd@0:                     {
ferencd@0:                         o->write_characters("\\ufffd", 6);
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                     {
ferencd@0:                         o->write_characters("\xEF\xBF\xBD", 3);
ferencd@0:                     }
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 default:            // LCOV_EXCL_LINE
ferencd@0:                     assert(false);  // LCOV_EXCL_LINE
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief count digits
ferencd@0: 
ferencd@0:     Count the number of decimal (base 10) digits for an input unsigned integer.
ferencd@0: 
ferencd@0:     @param[in] x  unsigned integer number to count its digits
ferencd@0:     @return    number of decimal digits
ferencd@0:     */
ferencd@0:     inline unsigned int count_digits(number_unsigned_t x) noexcept
ferencd@0:     {
ferencd@0:         unsigned int n_digits = 1;
ferencd@0:         for (;;)
ferencd@0:         {
ferencd@0:             if (x < 10)
ferencd@0:             {
ferencd@0:                 return n_digits;
ferencd@0:             }
ferencd@0:             if (x < 100)
ferencd@0:             {
ferencd@0:                 return n_digits + 1;
ferencd@0:             }
ferencd@0:             if (x < 1000)
ferencd@0:             {
ferencd@0:                 return n_digits + 2;
ferencd@0:             }
ferencd@0:             if (x < 10000)
ferencd@0:             {
ferencd@0:                 return n_digits + 3;
ferencd@0:             }
ferencd@0:             x = x / 10000u;
ferencd@0:             n_digits += 4;
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief dump an integer
ferencd@0: 
ferencd@0:     Dump a given integer to output stream @a o. Works internally with
ferencd@0:     @a number_buffer.
ferencd@0: 
ferencd@0:     @param[in] x  integer number (signed or unsigned) to dump
ferencd@0:     @tparam NumberType either @a number_integer_t or @a number_unsigned_t
ferencd@0:     */
ferencd@0:     template<typename NumberType, detail::enable_if_t<
ferencd@0:                  std::is_same<NumberType, number_unsigned_t>::value or
ferencd@0:                  std::is_same<NumberType, number_integer_t>::value,
ferencd@0:                  int> = 0>
ferencd@0:     void dump_integer(NumberType x)
ferencd@0:     {
ferencd@0:         static constexpr std::array<std::array<char, 2>, 100> digits_to_99
ferencd@0:         {
ferencd@0:             {
ferencd@0:                 {{'0', '0'}}, {{'0', '1'}}, {{'0', '2'}}, {{'0', '3'}}, {{'0', '4'}}, {{'0', '5'}}, {{'0', '6'}}, {{'0', '7'}}, {{'0', '8'}}, {{'0', '9'}},
ferencd@0:                 {{'1', '0'}}, {{'1', '1'}}, {{'1', '2'}}, {{'1', '3'}}, {{'1', '4'}}, {{'1', '5'}}, {{'1', '6'}}, {{'1', '7'}}, {{'1', '8'}}, {{'1', '9'}},
ferencd@0:                 {{'2', '0'}}, {{'2', '1'}}, {{'2', '2'}}, {{'2', '3'}}, {{'2', '4'}}, {{'2', '5'}}, {{'2', '6'}}, {{'2', '7'}}, {{'2', '8'}}, {{'2', '9'}},
ferencd@0:                 {{'3', '0'}}, {{'3', '1'}}, {{'3', '2'}}, {{'3', '3'}}, {{'3', '4'}}, {{'3', '5'}}, {{'3', '6'}}, {{'3', '7'}}, {{'3', '8'}}, {{'3', '9'}},
ferencd@0:                 {{'4', '0'}}, {{'4', '1'}}, {{'4', '2'}}, {{'4', '3'}}, {{'4', '4'}}, {{'4', '5'}}, {{'4', '6'}}, {{'4', '7'}}, {{'4', '8'}}, {{'4', '9'}},
ferencd@0:                 {{'5', '0'}}, {{'5', '1'}}, {{'5', '2'}}, {{'5', '3'}}, {{'5', '4'}}, {{'5', '5'}}, {{'5', '6'}}, {{'5', '7'}}, {{'5', '8'}}, {{'5', '9'}},
ferencd@0:                 {{'6', '0'}}, {{'6', '1'}}, {{'6', '2'}}, {{'6', '3'}}, {{'6', '4'}}, {{'6', '5'}}, {{'6', '6'}}, {{'6', '7'}}, {{'6', '8'}}, {{'6', '9'}},
ferencd@0:                 {{'7', '0'}}, {{'7', '1'}}, {{'7', '2'}}, {{'7', '3'}}, {{'7', '4'}}, {{'7', '5'}}, {{'7', '6'}}, {{'7', '7'}}, {{'7', '8'}}, {{'7', '9'}},
ferencd@0:                 {{'8', '0'}}, {{'8', '1'}}, {{'8', '2'}}, {{'8', '3'}}, {{'8', '4'}}, {{'8', '5'}}, {{'8', '6'}}, {{'8', '7'}}, {{'8', '8'}}, {{'8', '9'}},
ferencd@0:                 {{'9', '0'}}, {{'9', '1'}}, {{'9', '2'}}, {{'9', '3'}}, {{'9', '4'}}, {{'9', '5'}}, {{'9', '6'}}, {{'9', '7'}}, {{'9', '8'}}, {{'9', '9'}},
ferencd@0:             }
ferencd@0:         };
ferencd@0: 
ferencd@0:         // special case for "0"
ferencd@0:         if (x == 0)
ferencd@0:         {
ferencd@0:             o->write_character('0');
ferencd@0:             return;
ferencd@0:         }
ferencd@0: 
ferencd@0:         // use a pointer to fill the buffer
ferencd@0:         auto buffer_ptr = number_buffer.begin();
ferencd@0: 
ferencd@0:         const bool is_negative = std::is_same<NumberType, number_integer_t>::value and not(x >= 0); // see issue #755
ferencd@0:         number_unsigned_t abs_value;
ferencd@0: 
ferencd@0:         unsigned int n_chars;
ferencd@0: 
ferencd@0:         if (is_negative)
ferencd@0:         {
ferencd@0:             *buffer_ptr = '-';
ferencd@0:             abs_value = static_cast<number_unsigned_t>(std::abs(static_cast<std::intmax_t>(x)));
ferencd@0: 
ferencd@0:             // account one more byte for the minus sign
ferencd@0:             n_chars = 1 + count_digits(abs_value);
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             abs_value = static_cast<number_unsigned_t>(x);
ferencd@0:             n_chars = count_digits(abs_value);
ferencd@0:         }
ferencd@0: 
ferencd@0:         // spare 1 byte for '\0'
ferencd@0:         assert(n_chars < number_buffer.size() - 1);
ferencd@0: 
ferencd@0:         // jump to the end to generate the string from backward
ferencd@0:         // so we later avoid reversing the result
ferencd@0:         buffer_ptr += n_chars;
ferencd@0: 
ferencd@0:         // Fast int2ascii implementation inspired by "Fastware" talk by Andrei Alexandrescu
ferencd@0:         // See: https://www.youtube.com/watch?v=o4-CwDo2zpg
ferencd@0:         while (abs_value >= 100)
ferencd@0:         {
ferencd@0:             const auto digits_index = static_cast<unsigned>((abs_value % 100));
ferencd@0:             abs_value /= 100;
ferencd@0:             *(--buffer_ptr) = digits_to_99[digits_index][1];
ferencd@0:             *(--buffer_ptr) = digits_to_99[digits_index][0];
ferencd@0:         }
ferencd@0: 
ferencd@0:         if (abs_value >= 10)
ferencd@0:         {
ferencd@0:             const auto digits_index = static_cast<unsigned>(abs_value);
ferencd@0:             *(--buffer_ptr) = digits_to_99[digits_index][1];
ferencd@0:             *(--buffer_ptr) = digits_to_99[digits_index][0];
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             *(--buffer_ptr) = static_cast<char>('0' + abs_value);
ferencd@0:         }
ferencd@0: 
ferencd@0:         o->write_characters(number_buffer.data(), n_chars);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief dump a floating-point number
ferencd@0: 
ferencd@0:     Dump a given floating-point number to output stream @a o. Works internally
ferencd@0:     with @a number_buffer.
ferencd@0: 
ferencd@0:     @param[in] x  floating-point number to dump
ferencd@0:     */
ferencd@0:     void dump_float(number_float_t x)
ferencd@0:     {
ferencd@0:         // NaN / inf
ferencd@0:         if (not std::isfinite(x))
ferencd@0:         {
ferencd@0:             o->write_characters("null", 4);
ferencd@0:             return;
ferencd@0:         }
ferencd@0: 
ferencd@0:         // If number_float_t is an IEEE-754 single or double precision number,
ferencd@0:         // use the Grisu2 algorithm to produce short numbers which are
ferencd@0:         // guaranteed to round-trip, using strtof and strtod, resp.
ferencd@0:         //
ferencd@0:         // NB: The test below works if <long double> == <double>.
ferencd@0:         static constexpr bool is_ieee_single_or_double
ferencd@0:             = (std::numeric_limits<number_float_t>::is_iec559 and std::numeric_limits<number_float_t>::digits == 24 and std::numeric_limits<number_float_t>::max_exponent == 128) or
ferencd@0:               (std::numeric_limits<number_float_t>::is_iec559 and std::numeric_limits<number_float_t>::digits == 53 and std::numeric_limits<number_float_t>::max_exponent == 1024);
ferencd@0: 
ferencd@0:         dump_float(x, std::integral_constant<bool, is_ieee_single_or_double>());
ferencd@0:     }
ferencd@0: 
ferencd@0:     void dump_float(number_float_t x, std::true_type /*is_ieee_single_or_double*/)
ferencd@0:     {
ferencd@0:         char* begin = number_buffer.data();
ferencd@0:         char* end = ::nlohmann::detail::to_chars(begin, begin + number_buffer.size(), x);
ferencd@0: 
ferencd@0:         o->write_characters(begin, static_cast<size_t>(end - begin));
ferencd@0:     }
ferencd@0: 
ferencd@0:     void dump_float(number_float_t x, std::false_type /*is_ieee_single_or_double*/)
ferencd@0:     {
ferencd@0:         // get number of digits for a float -> text -> float round-trip
ferencd@0:         static constexpr auto d = std::numeric_limits<number_float_t>::max_digits10;
ferencd@0: 
ferencd@0:         // the actual conversion
ferencd@0:         std::ptrdiff_t len = (std::snprintf)(number_buffer.data(), number_buffer.size(), "%.*g", d, x);
ferencd@0: 
ferencd@0:         // negative value indicates an error
ferencd@0:         assert(len > 0);
ferencd@0:         // check if buffer was large enough
ferencd@0:         assert(static_cast<std::size_t>(len) < number_buffer.size());
ferencd@0: 
ferencd@0:         // erase thousands separator
ferencd@0:         if (thousands_sep != '\0')
ferencd@0:         {
ferencd@0:             const auto end = std::remove(number_buffer.begin(),
ferencd@0:                                          number_buffer.begin() + len, thousands_sep);
ferencd@0:             std::fill(end, number_buffer.end(), '\0');
ferencd@0:             assert((end - number_buffer.begin()) <= len);
ferencd@0:             len = (end - number_buffer.begin());
ferencd@0:         }
ferencd@0: 
ferencd@0:         // convert decimal point to '.'
ferencd@0:         if (decimal_point != '\0' and decimal_point != '.')
ferencd@0:         {
ferencd@0:             const auto dec_pos = std::find(number_buffer.begin(), number_buffer.end(), decimal_point);
ferencd@0:             if (dec_pos != number_buffer.end())
ferencd@0:             {
ferencd@0:                 *dec_pos = '.';
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         o->write_characters(number_buffer.data(), static_cast<std::size_t>(len));
ferencd@0: 
ferencd@0:         // determine if need to append ".0"
ferencd@0:         const bool value_is_int_like =
ferencd@0:             std::none_of(number_buffer.begin(), number_buffer.begin() + len + 1,
ferencd@0:                          [](char c)
ferencd@0:         {
ferencd@0:             return c == '.' or c == 'e';
ferencd@0:         });
ferencd@0: 
ferencd@0:         if (value_is_int_like)
ferencd@0:         {
ferencd@0:             o->write_characters(".0", 2);
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief check whether a string is UTF-8 encoded
ferencd@0: 
ferencd@0:     The function checks each byte of a string whether it is UTF-8 encoded. The
ferencd@0:     result of the check is stored in the @a state parameter. The function must
ferencd@0:     be called initially with state 0 (accept). State 1 means the string must
ferencd@0:     be rejected, because the current byte is not allowed. If the string is
ferencd@0:     completely processed, but the state is non-zero, the string ended
ferencd@0:     prematurely; that is, the last byte indicated more bytes should have
ferencd@0:     followed.
ferencd@0: 
ferencd@0:     @param[in,out] state  the state of the decoding
ferencd@0:     @param[in,out] codep  codepoint (valid only if resulting state is UTF8_ACCEPT)
ferencd@0:     @param[in] byte       next byte to decode
ferencd@0:     @return               new state
ferencd@0: 
ferencd@0:     @note The function has been edited: a std::array is used.
ferencd@0: 
ferencd@0:     @copyright Copyright (c) 2008-2009 Bjoern Hoehrmann <bjoern@hoehrmann.de>
ferencd@0:     @sa http://bjoern.hoehrmann.de/utf-8/decoder/dfa/
ferencd@0:     */
ferencd@0:     static std::uint8_t decode(std::uint8_t& state, std::uint32_t& codep, const std::uint8_t byte) noexcept
ferencd@0:     {
ferencd@0:         static const std::array<std::uint8_t, 400> utf8d =
ferencd@0:         {
ferencd@0:             {
ferencd@0:                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 00..1F
ferencd@0:                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 20..3F
ferencd@0:                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 40..5F
ferencd@0:                 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, // 60..7F
ferencd@0:                 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, // 80..9F
ferencd@0:                 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, // A0..BF
ferencd@0:                 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, // C0..DF
ferencd@0:                 0xA, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x3, 0x4, 0x3, 0x3, // E0..EF
ferencd@0:                 0xB, 0x6, 0x6, 0x6, 0x5, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, 0x8, // F0..FF
ferencd@0:                 0x0, 0x1, 0x2, 0x3, 0x5, 0x8, 0x7, 0x1, 0x1, 0x1, 0x4, 0x6, 0x1, 0x1, 0x1, 0x1, // s0..s0
ferencd@0:                 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 1, 1, 1, 1, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, // s1..s2
ferencd@0:                 1, 2, 1, 1, 1, 1, 1, 2, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, // s3..s4
ferencd@0:                 1, 2, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 1, 3, 1, 1, 1, 1, 1, 1, // s5..s6
ferencd@0:                 1, 3, 1, 1, 1, 1, 1, 3, 1, 3, 1, 1, 1, 1, 1, 1, 1, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 // s7..s8
ferencd@0:             }
ferencd@0:         };
ferencd@0: 
ferencd@0:         const std::uint8_t type = utf8d[byte];
ferencd@0: 
ferencd@0:         codep = (state != UTF8_ACCEPT)
ferencd@0:                 ? (byte & 0x3fu) | (codep << 6u)
ferencd@0:                 : (0xFFu >> type) & (byte);
ferencd@0: 
ferencd@0:         state = utf8d[256u + state * 16u + type];
ferencd@0:         return state;
ferencd@0:     }
ferencd@0: 
ferencd@0:   private:
ferencd@0:     /// the output of the serializer
ferencd@0:     output_adapter_t<char> o = nullptr;
ferencd@0: 
ferencd@0:     /// a (hopefully) large enough character buffer
ferencd@0:     std::array<char, 64> number_buffer{{}};
ferencd@0: 
ferencd@0:     /// the locale
ferencd@0:     const std::lconv* loc = nullptr;
ferencd@0:     /// the locale's thousand separator character
ferencd@0:     const char thousands_sep = '\0';
ferencd@0:     /// the locale's decimal point character
ferencd@0:     const char decimal_point = '\0';
ferencd@0: 
ferencd@0:     /// string buffer
ferencd@0:     std::array<char, 512> string_buffer{{}};
ferencd@0: 
ferencd@0:     /// the indentation character
ferencd@0:     const char indent_char;
ferencd@0:     /// the indentation string
ferencd@0:     string_t indent_string;
ferencd@0: 
ferencd@0:     /// error_handler how to react on decoding errors
ferencd@0:     const error_handler_t error_handler;
ferencd@0: };
ferencd@0: }  // namespace detail
ferencd@0: }  // namespace nlohmann
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/value_t.hpp>
ferencd@0: 
ferencd@0: // #include <nlohmann/json_fwd.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief namespace for Niels Lohmann
ferencd@0: @see https://github.com/nlohmann
ferencd@0: @since version 1.0.0
ferencd@0: */
ferencd@0: namespace nlohmann
ferencd@0: {
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief a class to store JSON values
ferencd@0: 
ferencd@0: @tparam ObjectType type for JSON objects (`std::map` by default; will be used
ferencd@0: in @ref object_t)
ferencd@0: @tparam ArrayType type for JSON arrays (`std::vector` by default; will be used
ferencd@0: in @ref array_t)
ferencd@0: @tparam StringType type for JSON strings and object keys (`std::string` by
ferencd@0: default; will be used in @ref string_t)
ferencd@0: @tparam BooleanType type for JSON booleans (`bool` by default; will be used
ferencd@0: in @ref boolean_t)
ferencd@0: @tparam NumberIntegerType type for JSON integer numbers (`int64_t` by
ferencd@0: default; will be used in @ref number_integer_t)
ferencd@0: @tparam NumberUnsignedType type for JSON unsigned integer numbers (@c
ferencd@0: `uint64_t` by default; will be used in @ref number_unsigned_t)
ferencd@0: @tparam NumberFloatType type for JSON floating-point numbers (`double` by
ferencd@0: default; will be used in @ref number_float_t)
ferencd@0: @tparam AllocatorType type of the allocator to use (`std::allocator` by
ferencd@0: default)
ferencd@0: @tparam JSONSerializer the serializer to resolve internal calls to `to_json()`
ferencd@0: and `from_json()` (@ref adl_serializer by default)
ferencd@0: 
ferencd@0: @requirement The class satisfies the following concept requirements:
ferencd@0: - Basic
ferencd@0:  - [DefaultConstructible](https://en.cppreference.com/w/cpp/named_req/DefaultConstructible):
ferencd@0:    JSON values can be default constructed. The result will be a JSON null
ferencd@0:    value.
ferencd@0:  - [MoveConstructible](https://en.cppreference.com/w/cpp/named_req/MoveConstructible):
ferencd@0:    A JSON value can be constructed from an rvalue argument.
ferencd@0:  - [CopyConstructible](https://en.cppreference.com/w/cpp/named_req/CopyConstructible):
ferencd@0:    A JSON value can be copy-constructed from an lvalue expression.
ferencd@0:  - [MoveAssignable](https://en.cppreference.com/w/cpp/named_req/MoveAssignable):
ferencd@0:    A JSON value van be assigned from an rvalue argument.
ferencd@0:  - [CopyAssignable](https://en.cppreference.com/w/cpp/named_req/CopyAssignable):
ferencd@0:    A JSON value can be copy-assigned from an lvalue expression.
ferencd@0:  - [Destructible](https://en.cppreference.com/w/cpp/named_req/Destructible):
ferencd@0:    JSON values can be destructed.
ferencd@0: - Layout
ferencd@0:  - [StandardLayoutType](https://en.cppreference.com/w/cpp/named_req/StandardLayoutType):
ferencd@0:    JSON values have
ferencd@0:    [standard layout](https://en.cppreference.com/w/cpp/language/data_members#Standard_layout):
ferencd@0:    All non-static data members are private and standard layout types, the
ferencd@0:    class has no virtual functions or (virtual) base classes.
ferencd@0: - Library-wide
ferencd@0:  - [EqualityComparable](https://en.cppreference.com/w/cpp/named_req/EqualityComparable):
ferencd@0:    JSON values can be compared with `==`, see @ref
ferencd@0:    operator==(const_reference,const_reference).
ferencd@0:  - [LessThanComparable](https://en.cppreference.com/w/cpp/named_req/LessThanComparable):
ferencd@0:    JSON values can be compared with `<`, see @ref
ferencd@0:    operator<(const_reference,const_reference).
ferencd@0:  - [Swappable](https://en.cppreference.com/w/cpp/named_req/Swappable):
ferencd@0:    Any JSON lvalue or rvalue of can be swapped with any lvalue or rvalue of
ferencd@0:    other compatible types, using unqualified function call @ref swap().
ferencd@0:  - [NullablePointer](https://en.cppreference.com/w/cpp/named_req/NullablePointer):
ferencd@0:    JSON values can be compared against `std::nullptr_t` objects which are used
ferencd@0:    to model the `null` value.
ferencd@0: - Container
ferencd@0:  - [Container](https://en.cppreference.com/w/cpp/named_req/Container):
ferencd@0:    JSON values can be used like STL containers and provide iterator access.
ferencd@0:  - [ReversibleContainer](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer);
ferencd@0:    JSON values can be used like STL containers and provide reverse iterator
ferencd@0:    access.
ferencd@0: 
ferencd@0: @invariant The member variables @a m_value and @a m_type have the following
ferencd@0: relationship:
ferencd@0: - If `m_type == value_t::object`, then `m_value.object != nullptr`.
ferencd@0: - If `m_type == value_t::array`, then `m_value.array != nullptr`.
ferencd@0: - If `m_type == value_t::string`, then `m_value.string != nullptr`.
ferencd@0: The invariants are checked by member function assert_invariant().
ferencd@0: 
ferencd@0: @internal
ferencd@0: @note ObjectType trick from http://stackoverflow.com/a/9860911
ferencd@0: @endinternal
ferencd@0: 
ferencd@0: @see [RFC 7159: The JavaScript Object Notation (JSON) Data Interchange
ferencd@0: Format](http://rfc7159.net/rfc7159)
ferencd@0: 
ferencd@0: @since version 1.0.0
ferencd@0: 
ferencd@0: @nosubgrouping
ferencd@0: */
ferencd@0: NLOHMANN_BASIC_JSON_TPL_DECLARATION
ferencd@0: class basic_json
ferencd@0: {
ferencd@0:   private:
ferencd@0:     template<detail::value_t> friend struct detail::external_constructor;
ferencd@0:     friend ::nlohmann::json_pointer<basic_json>;
ferencd@0:     friend ::nlohmann::detail::parser<basic_json>;
ferencd@0:     friend ::nlohmann::detail::serializer<basic_json>;
ferencd@0:     template<typename BasicJsonType>
ferencd@0:     friend class ::nlohmann::detail::iter_impl;
ferencd@0:     template<typename BasicJsonType, typename CharType>
ferencd@0:     friend class ::nlohmann::detail::binary_writer;
ferencd@0:     template<typename BasicJsonType, typename SAX>
ferencd@0:     friend class ::nlohmann::detail::binary_reader;
ferencd@0:     template<typename BasicJsonType>
ferencd@0:     friend class ::nlohmann::detail::json_sax_dom_parser;
ferencd@0:     template<typename BasicJsonType>
ferencd@0:     friend class ::nlohmann::detail::json_sax_dom_callback_parser;
ferencd@0: 
ferencd@0:     /// workaround type for MSVC
ferencd@0:     using basic_json_t = NLOHMANN_BASIC_JSON_TPL;
ferencd@0: 
ferencd@0:     // convenience aliases for types residing in namespace detail;
ferencd@0:     using lexer = ::nlohmann::detail::lexer<basic_json>;
ferencd@0:     using parser = ::nlohmann::detail::parser<basic_json>;
ferencd@0: 
ferencd@0:     using primitive_iterator_t = ::nlohmann::detail::primitive_iterator_t;
ferencd@0:     template<typename BasicJsonType>
ferencd@0:     using internal_iterator = ::nlohmann::detail::internal_iterator<BasicJsonType>;
ferencd@0:     template<typename BasicJsonType>
ferencd@0:     using iter_impl = ::nlohmann::detail::iter_impl<BasicJsonType>;
ferencd@0:     template<typename Iterator>
ferencd@0:     using iteration_proxy = ::nlohmann::detail::iteration_proxy<Iterator>;
ferencd@0:     template<typename Base> using json_reverse_iterator = ::nlohmann::detail::json_reverse_iterator<Base>;
ferencd@0: 
ferencd@0:     template<typename CharType>
ferencd@0:     using output_adapter_t = ::nlohmann::detail::output_adapter_t<CharType>;
ferencd@0: 
ferencd@0:     using binary_reader = ::nlohmann::detail::binary_reader<basic_json>;
ferencd@0:     template<typename CharType> using binary_writer = ::nlohmann::detail::binary_writer<basic_json, CharType>;
ferencd@0: 
ferencd@0:     using serializer = ::nlohmann::detail::serializer<basic_json>;
ferencd@0: 
ferencd@0:   public:
ferencd@0:     using value_t = detail::value_t;
ferencd@0:     /// JSON Pointer, see @ref nlohmann::json_pointer
ferencd@0:     using json_pointer = ::nlohmann::json_pointer<basic_json>;
ferencd@0:     template<typename T, typename SFINAE>
ferencd@0:     using json_serializer = JSONSerializer<T, SFINAE>;
ferencd@0:     /// how to treat decoding errors
ferencd@0:     using error_handler_t = detail::error_handler_t;
ferencd@0:     /// helper type for initializer lists of basic_json values
ferencd@0:     using initializer_list_t = std::initializer_list<detail::json_ref<basic_json>>;
ferencd@0: 
ferencd@0:     using input_format_t = detail::input_format_t;
ferencd@0:     /// SAX interface type, see @ref nlohmann::json_sax
ferencd@0:     using json_sax_t = json_sax<basic_json>;
ferencd@0: 
ferencd@0:     ////////////////
ferencd@0:     // exceptions //
ferencd@0:     ////////////////
ferencd@0: 
ferencd@0:     /// @name exceptions
ferencd@0:     /// Classes to implement user-defined exceptions.
ferencd@0:     /// @{
ferencd@0: 
ferencd@0:     /// @copydoc detail::exception
ferencd@0:     using exception = detail::exception;
ferencd@0:     /// @copydoc detail::parse_error
ferencd@0:     using parse_error = detail::parse_error;
ferencd@0:     /// @copydoc detail::invalid_iterator
ferencd@0:     using invalid_iterator = detail::invalid_iterator;
ferencd@0:     /// @copydoc detail::type_error
ferencd@0:     using type_error = detail::type_error;
ferencd@0:     /// @copydoc detail::out_of_range
ferencd@0:     using out_of_range = detail::out_of_range;
ferencd@0:     /// @copydoc detail::other_error
ferencd@0:     using other_error = detail::other_error;
ferencd@0: 
ferencd@0:     /// @}
ferencd@0: 
ferencd@0: 
ferencd@0:     /////////////////////
ferencd@0:     // container types //
ferencd@0:     /////////////////////
ferencd@0: 
ferencd@0:     /// @name container types
ferencd@0:     /// The canonic container types to use @ref basic_json like any other STL
ferencd@0:     /// container.
ferencd@0:     /// @{
ferencd@0: 
ferencd@0:     /// the type of elements in a basic_json container
ferencd@0:     using value_type = basic_json;
ferencd@0: 
ferencd@0:     /// the type of an element reference
ferencd@0:     using reference = value_type&;
ferencd@0:     /// the type of an element const reference
ferencd@0:     using const_reference = const value_type&;
ferencd@0: 
ferencd@0:     /// a type to represent differences between iterators
ferencd@0:     using difference_type = std::ptrdiff_t;
ferencd@0:     /// a type to represent container sizes
ferencd@0:     using size_type = std::size_t;
ferencd@0: 
ferencd@0:     /// the allocator type
ferencd@0:     using allocator_type = AllocatorType<basic_json>;
ferencd@0: 
ferencd@0:     /// the type of an element pointer
ferencd@0:     using pointer = typename std::allocator_traits<allocator_type>::pointer;
ferencd@0:     /// the type of an element const pointer
ferencd@0:     using const_pointer = typename std::allocator_traits<allocator_type>::const_pointer;
ferencd@0: 
ferencd@0:     /// an iterator for a basic_json container
ferencd@0:     using iterator = iter_impl<basic_json>;
ferencd@0:     /// a const iterator for a basic_json container
ferencd@0:     using const_iterator = iter_impl<const basic_json>;
ferencd@0:     /// a reverse iterator for a basic_json container
ferencd@0:     using reverse_iterator = json_reverse_iterator<typename basic_json::iterator>;
ferencd@0:     /// a const reverse iterator for a basic_json container
ferencd@0:     using const_reverse_iterator = json_reverse_iterator<typename basic_json::const_iterator>;
ferencd@0: 
ferencd@0:     /// @}
ferencd@0: 
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief returns the allocator associated with the container
ferencd@0:     */
ferencd@0:     static allocator_type get_allocator()
ferencd@0:     {
ferencd@0:         return allocator_type();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief returns version information on the library
ferencd@0: 
ferencd@0:     This function returns a JSON object with information about the library,
ferencd@0:     including the version number and information on the platform and compiler.
ferencd@0: 
ferencd@0:     @return JSON object holding version information
ferencd@0:     key         | description
ferencd@0:     ----------- | ---------------
ferencd@0:     `compiler`  | Information on the used compiler. It is an object with the following keys: `c++` (the used C++ standard), `family` (the compiler family; possible values are `clang`, `icc`, `gcc`, `ilecpp`, `msvc`, `pgcpp`, `sunpro`, and `unknown`), and `version` (the compiler version).
ferencd@0:     `copyright` | The copyright line for the library as string.
ferencd@0:     `name`      | The name of the library as string.
ferencd@0:     `platform`  | The used platform as string. Possible values are `win32`, `linux`, `apple`, `unix`, and `unknown`.
ferencd@0:     `url`       | The URL of the project as string.
ferencd@0:     `version`   | The version of the library. It is an object with the following keys: `major`, `minor`, and `patch` as defined by [Semantic Versioning](http://semver.org), and `string` (the version string).
ferencd@0: 
ferencd@0:     @liveexample{The following code shows an example output of the `meta()`
ferencd@0:     function.,meta}
ferencd@0: 
ferencd@0:     @exceptionsafety Strong guarantee: if an exception is thrown, there are no
ferencd@0:     changes to any JSON value.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @since 2.1.0
ferencd@0:     */
ferencd@0:     JSON_HEDLEY_WARN_UNUSED_RESULT
ferencd@0:     static basic_json meta()
ferencd@0:     {
ferencd@0:         basic_json result;
ferencd@0: 
ferencd@0:         result["copyright"] = "(C) 2013-2017 Niels Lohmann";
ferencd@0:         result["name"] = "JSON for Modern C++";
ferencd@0:         result["url"] = "https://github.com/nlohmann/json";
ferencd@0:         result["version"]["string"] =
ferencd@0:             std::to_string(NLOHMANN_JSON_VERSION_MAJOR) + "." +
ferencd@0:             std::to_string(NLOHMANN_JSON_VERSION_MINOR) + "." +
ferencd@0:             std::to_string(NLOHMANN_JSON_VERSION_PATCH);
ferencd@0:         result["version"]["major"] = NLOHMANN_JSON_VERSION_MAJOR;
ferencd@0:         result["version"]["minor"] = NLOHMANN_JSON_VERSION_MINOR;
ferencd@0:         result["version"]["patch"] = NLOHMANN_JSON_VERSION_PATCH;
ferencd@0: 
ferencd@0: #ifdef _WIN32
ferencd@0:         result["platform"] = "win32";
ferencd@0: #elif defined __linux__
ferencd@0:         result["platform"] = "linux";
ferencd@0: #elif defined __APPLE__
ferencd@0:         result["platform"] = "apple";
ferencd@0: #elif defined __unix__
ferencd@0:         result["platform"] = "unix";
ferencd@0: #else
ferencd@0:         result["platform"] = "unknown";
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(__ICC) || defined(__INTEL_COMPILER)
ferencd@0:         result["compiler"] = {{"family", "icc"}, {"version", __INTEL_COMPILER}};
ferencd@0: #elif defined(__clang__)
ferencd@0:         result["compiler"] = {{"family", "clang"}, {"version", __clang_version__}};
ferencd@0: #elif defined(__GNUC__) || defined(__GNUG__)
ferencd@0:         result["compiler"] = {{"family", "gcc"}, {"version", std::to_string(__GNUC__) + "." + std::to_string(__GNUC_MINOR__) + "." + std::to_string(__GNUC_PATCHLEVEL__)}};
ferencd@0: #elif defined(__HP_cc) || defined(__HP_aCC)
ferencd@0:         result["compiler"] = "hp"
ferencd@0: #elif defined(__IBMCPP__)
ferencd@0:         result["compiler"] = {{"family", "ilecpp"}, {"version", __IBMCPP__}};
ferencd@0: #elif defined(_MSC_VER)
ferencd@0:         result["compiler"] = {{"family", "msvc"}, {"version", _MSC_VER}};
ferencd@0: #elif defined(__PGI)
ferencd@0:         result["compiler"] = {{"family", "pgcpp"}, {"version", __PGI}};
ferencd@0: #elif defined(__SUNPRO_CC)
ferencd@0:         result["compiler"] = {{"family", "sunpro"}, {"version", __SUNPRO_CC}};
ferencd@0: #else
ferencd@0:         result["compiler"] = {{"family", "unknown"}, {"version", "unknown"}};
ferencd@0: #endif
ferencd@0: 
ferencd@0: #ifdef __cplusplus
ferencd@0:         result["compiler"]["c++"] = std::to_string(__cplusplus);
ferencd@0: #else
ferencd@0:         result["compiler"]["c++"] = "unknown";
ferencd@0: #endif
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0: 
ferencd@0:     ///////////////////////////
ferencd@0:     // JSON value data types //
ferencd@0:     ///////////////////////////
ferencd@0: 
ferencd@0:     /// @name JSON value data types
ferencd@0:     /// The data types to store a JSON value. These types are derived from
ferencd@0:     /// the template arguments passed to class @ref basic_json.
ferencd@0:     /// @{
ferencd@0: 
ferencd@0: #if defined(JSON_HAS_CPP_14)
ferencd@0:     // Use transparent comparator if possible, combined with perfect forwarding
ferencd@0:     // on find() and count() calls prevents unnecessary string construction.
ferencd@0:     using object_comparator_t = std::less<>;
ferencd@0: #else
ferencd@0:     using object_comparator_t = std::less<StringType>;
ferencd@0: #endif
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief a type for an object
ferencd@0: 
ferencd@0:     [RFC 7159](http://rfc7159.net/rfc7159) describes JSON objects as follows:
ferencd@0:     > An object is an unordered collection of zero or more name/value pairs,
ferencd@0:     > where a name is a string and a value is a string, number, boolean, null,
ferencd@0:     > object, or array.
ferencd@0: 
ferencd@0:     To store objects in C++, a type is defined by the template parameters
ferencd@0:     described below.
ferencd@0: 
ferencd@0:     @tparam ObjectType  the container to store objects (e.g., `std::map` or
ferencd@0:     `std::unordered_map`)
ferencd@0:     @tparam StringType the type of the keys or names (e.g., `std::string`).
ferencd@0:     The comparison function `std::less<StringType>` is used to order elements
ferencd@0:     inside the container.
ferencd@0:     @tparam AllocatorType the allocator to use for objects (e.g.,
ferencd@0:     `std::allocator`)
ferencd@0: 
ferencd@0:     #### Default type
ferencd@0: 
ferencd@0:     With the default values for @a ObjectType (`std::map`), @a StringType
ferencd@0:     (`std::string`), and @a AllocatorType (`std::allocator`), the default
ferencd@0:     value for @a object_t is:
ferencd@0: 
ferencd@0:     @code {.cpp}
ferencd@0:     std::map<
ferencd@0:       std::string, // key_type
ferencd@0:       basic_json, // value_type
ferencd@0:       std::less<std::string>, // key_compare
ferencd@0:       std::allocator<std::pair<const std::string, basic_json>> // allocator_type
ferencd@0:     >
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     #### Behavior
ferencd@0: 
ferencd@0:     The choice of @a object_t influences the behavior of the JSON class. With
ferencd@0:     the default type, objects have the following behavior:
ferencd@0: 
ferencd@0:     - When all names are unique, objects will be interoperable in the sense
ferencd@0:       that all software implementations receiving that object will agree on
ferencd@0:       the name-value mappings.
ferencd@0:     - When the names within an object are not unique, it is unspecified which
ferencd@0:       one of the values for a given key will be chosen. For instance,
ferencd@0:       `{"key": 2, "key": 1}` could be equal to either `{"key": 1}` or
ferencd@0:       `{"key": 2}`.
ferencd@0:     - Internally, name/value pairs are stored in lexicographical order of the
ferencd@0:       names. Objects will also be serialized (see @ref dump) in this order.
ferencd@0:       For instance, `{"b": 1, "a": 2}` and `{"a": 2, "b": 1}` will be stored
ferencd@0:       and serialized as `{"a": 2, "b": 1}`.
ferencd@0:     - When comparing objects, the order of the name/value pairs is irrelevant.
ferencd@0:       This makes objects interoperable in the sense that they will not be
ferencd@0:       affected by these differences. For instance, `{"b": 1, "a": 2}` and
ferencd@0:       `{"a": 2, "b": 1}` will be treated as equal.
ferencd@0: 
ferencd@0:     #### Limits
ferencd@0: 
ferencd@0:     [RFC 7159](http://rfc7159.net/rfc7159) specifies:
ferencd@0:     > An implementation may set limits on the maximum depth of nesting.
ferencd@0: 
ferencd@0:     In this class, the object's limit of nesting is not explicitly constrained.
ferencd@0:     However, a maximum depth of nesting may be introduced by the compiler or
ferencd@0:     runtime environment. A theoretical limit can be queried by calling the
ferencd@0:     @ref max_size function of a JSON object.
ferencd@0: 
ferencd@0:     #### Storage
ferencd@0: 
ferencd@0:     Objects are stored as pointers in a @ref basic_json type. That is, for any
ferencd@0:     access to object values, a pointer of type `object_t*` must be
ferencd@0:     dereferenced.
ferencd@0: 
ferencd@0:     @sa @ref array_t -- type for an array value
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0: 
ferencd@0:     @note The order name/value pairs are added to the object is *not*
ferencd@0:     preserved by the library. Therefore, iterating an object may return
ferencd@0:     name/value pairs in a different order than they were originally stored. In
ferencd@0:     fact, keys will be traversed in alphabetical order as `std::map` with
ferencd@0:     `std::less` is used by default. Please note this behavior conforms to [RFC
ferencd@0:     7159](http://rfc7159.net/rfc7159), because any order implements the
ferencd@0:     specified "unordered" nature of JSON objects.
ferencd@0:     */
ferencd@0:     using object_t = ObjectType<StringType,
ferencd@0:           basic_json,
ferencd@0:           object_comparator_t,
ferencd@0:           AllocatorType<std::pair<const StringType,
ferencd@0:           basic_json>>>;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief a type for an array
ferencd@0: 
ferencd@0:     [RFC 7159](http://rfc7159.net/rfc7159) describes JSON arrays as follows:
ferencd@0:     > An array is an ordered sequence of zero or more values.
ferencd@0: 
ferencd@0:     To store objects in C++, a type is defined by the template parameters
ferencd@0:     explained below.
ferencd@0: 
ferencd@0:     @tparam ArrayType  container type to store arrays (e.g., `std::vector` or
ferencd@0:     `std::list`)
ferencd@0:     @tparam AllocatorType allocator to use for arrays (e.g., `std::allocator`)
ferencd@0: 
ferencd@0:     #### Default type
ferencd@0: 
ferencd@0:     With the default values for @a ArrayType (`std::vector`) and @a
ferencd@0:     AllocatorType (`std::allocator`), the default value for @a array_t is:
ferencd@0: 
ferencd@0:     @code {.cpp}
ferencd@0:     std::vector<
ferencd@0:       basic_json, // value_type
ferencd@0:       std::allocator<basic_json> // allocator_type
ferencd@0:     >
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     #### Limits
ferencd@0: 
ferencd@0:     [RFC 7159](http://rfc7159.net/rfc7159) specifies:
ferencd@0:     > An implementation may set limits on the maximum depth of nesting.
ferencd@0: 
ferencd@0:     In this class, the array's limit of nesting is not explicitly constrained.
ferencd@0:     However, a maximum depth of nesting may be introduced by the compiler or
ferencd@0:     runtime environment. A theoretical limit can be queried by calling the
ferencd@0:     @ref max_size function of a JSON array.
ferencd@0: 
ferencd@0:     #### Storage
ferencd@0: 
ferencd@0:     Arrays are stored as pointers in a @ref basic_json type. That is, for any
ferencd@0:     access to array values, a pointer of type `array_t*` must be dereferenced.
ferencd@0: 
ferencd@0:     @sa @ref object_t -- type for an object value
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     using array_t = ArrayType<basic_json, AllocatorType<basic_json>>;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief a type for a string
ferencd@0: 
ferencd@0:     [RFC 7159](http://rfc7159.net/rfc7159) describes JSON strings as follows:
ferencd@0:     > A string is a sequence of zero or more Unicode characters.
ferencd@0: 
ferencd@0:     To store objects in C++, a type is defined by the template parameter
ferencd@0:     described below. Unicode values are split by the JSON class into
ferencd@0:     byte-sized characters during deserialization.
ferencd@0: 
ferencd@0:     @tparam StringType  the container to store strings (e.g., `std::string`).
ferencd@0:     Note this container is used for keys/names in objects, see @ref object_t.
ferencd@0: 
ferencd@0:     #### Default type
ferencd@0: 
ferencd@0:     With the default values for @a StringType (`std::string`), the default
ferencd@0:     value for @a string_t is:
ferencd@0: 
ferencd@0:     @code {.cpp}
ferencd@0:     std::string
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     #### Encoding
ferencd@0: 
ferencd@0:     Strings are stored in UTF-8 encoding. Therefore, functions like
ferencd@0:     `std::string::size()` or `std::string::length()` return the number of
ferencd@0:     bytes in the string rather than the number of characters or glyphs.
ferencd@0: 
ferencd@0:     #### String comparison
ferencd@0: 
ferencd@0:     [RFC 7159](http://rfc7159.net/rfc7159) states:
ferencd@0:     > Software implementations are typically required to test names of object
ferencd@0:     > members for equality. Implementations that transform the textual
ferencd@0:     > representation into sequences of Unicode code units and then perform the
ferencd@0:     > comparison numerically, code unit by code unit, are interoperable in the
ferencd@0:     > sense that implementations will agree in all cases on equality or
ferencd@0:     > inequality of two strings. For example, implementations that compare
ferencd@0:     > strings with escaped characters unconverted may incorrectly find that
ferencd@0:     > `"a\\b"` and `"a\u005Cb"` are not equal.
ferencd@0: 
ferencd@0:     This implementation is interoperable as it does compare strings code unit
ferencd@0:     by code unit.
ferencd@0: 
ferencd@0:     #### Storage
ferencd@0: 
ferencd@0:     String values are stored as pointers in a @ref basic_json type. That is,
ferencd@0:     for any access to string values, a pointer of type `string_t*` must be
ferencd@0:     dereferenced.
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     using string_t = StringType;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief a type for a boolean
ferencd@0: 
ferencd@0:     [RFC 7159](http://rfc7159.net/rfc7159) implicitly describes a boolean as a
ferencd@0:     type which differentiates the two literals `true` and `false`.
ferencd@0: 
ferencd@0:     To store objects in C++, a type is defined by the template parameter @a
ferencd@0:     BooleanType which chooses the type to use.
ferencd@0: 
ferencd@0:     #### Default type
ferencd@0: 
ferencd@0:     With the default values for @a BooleanType (`bool`), the default value for
ferencd@0:     @a boolean_t is:
ferencd@0: 
ferencd@0:     @code {.cpp}
ferencd@0:     bool
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     #### Storage
ferencd@0: 
ferencd@0:     Boolean values are stored directly inside a @ref basic_json type.
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     using boolean_t = BooleanType;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief a type for a number (integer)
ferencd@0: 
ferencd@0:     [RFC 7159](http://rfc7159.net/rfc7159) describes numbers as follows:
ferencd@0:     > The representation of numbers is similar to that used in most
ferencd@0:     > programming languages. A number is represented in base 10 using decimal
ferencd@0:     > digits. It contains an integer component that may be prefixed with an
ferencd@0:     > optional minus sign, which may be followed by a fraction part and/or an
ferencd@0:     > exponent part. Leading zeros are not allowed. (...) Numeric values that
ferencd@0:     > cannot be represented in the grammar below (such as Infinity and NaN)
ferencd@0:     > are not permitted.
ferencd@0: 
ferencd@0:     This description includes both integer and floating-point numbers.
ferencd@0:     However, C++ allows more precise storage if it is known whether the number
ferencd@0:     is a signed integer, an unsigned integer or a floating-point number.
ferencd@0:     Therefore, three different types, @ref number_integer_t, @ref
ferencd@0:     number_unsigned_t and @ref number_float_t are used.
ferencd@0: 
ferencd@0:     To store integer numbers in C++, a type is defined by the template
ferencd@0:     parameter @a NumberIntegerType which chooses the type to use.
ferencd@0: 
ferencd@0:     #### Default type
ferencd@0: 
ferencd@0:     With the default values for @a NumberIntegerType (`int64_t`), the default
ferencd@0:     value for @a number_integer_t is:
ferencd@0: 
ferencd@0:     @code {.cpp}
ferencd@0:     int64_t
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     #### Default behavior
ferencd@0: 
ferencd@0:     - The restrictions about leading zeros is not enforced in C++. Instead,
ferencd@0:       leading zeros in integer literals lead to an interpretation as octal
ferencd@0:       number. Internally, the value will be stored as decimal number. For
ferencd@0:       instance, the C++ integer literal `010` will be serialized to `8`.
ferencd@0:       During deserialization, leading zeros yield an error.
ferencd@0:     - Not-a-number (NaN) values will be serialized to `null`.
ferencd@0: 
ferencd@0:     #### Limits
ferencd@0: 
ferencd@0:     [RFC 7159](http://rfc7159.net/rfc7159) specifies:
ferencd@0:     > An implementation may set limits on the range and precision of numbers.
ferencd@0: 
ferencd@0:     When the default type is used, the maximal integer number that can be
ferencd@0:     stored is `9223372036854775807` (INT64_MAX) and the minimal integer number
ferencd@0:     that can be stored is `-9223372036854775808` (INT64_MIN). Integer numbers
ferencd@0:     that are out of range will yield over/underflow when used in a
ferencd@0:     constructor. During deserialization, too large or small integer numbers
ferencd@0:     will be automatically be stored as @ref number_unsigned_t or @ref
ferencd@0:     number_float_t.
ferencd@0: 
ferencd@0:     [RFC 7159](http://rfc7159.net/rfc7159) further states:
ferencd@0:     > Note that when such software is used, numbers that are integers and are
ferencd@0:     > in the range \f$[-2^{53}+1, 2^{53}-1]\f$ are interoperable in the sense
ferencd@0:     > that implementations will agree exactly on their numeric values.
ferencd@0: 
ferencd@0:     As this range is a subrange of the exactly supported range [INT64_MIN,
ferencd@0:     INT64_MAX], this class's integer type is interoperable.
ferencd@0: 
ferencd@0:     #### Storage
ferencd@0: 
ferencd@0:     Integer number values are stored directly inside a @ref basic_json type.
ferencd@0: 
ferencd@0:     @sa @ref number_float_t -- type for number values (floating-point)
ferencd@0: 
ferencd@0:     @sa @ref number_unsigned_t -- type for number values (unsigned integer)
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     using number_integer_t = NumberIntegerType;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief a type for a number (unsigned)
ferencd@0: 
ferencd@0:     [RFC 7159](http://rfc7159.net/rfc7159) describes numbers as follows:
ferencd@0:     > The representation of numbers is similar to that used in most
ferencd@0:     > programming languages. A number is represented in base 10 using decimal
ferencd@0:     > digits. It contains an integer component that may be prefixed with an
ferencd@0:     > optional minus sign, which may be followed by a fraction part and/or an
ferencd@0:     > exponent part. Leading zeros are not allowed. (...) Numeric values that
ferencd@0:     > cannot be represented in the grammar below (such as Infinity and NaN)
ferencd@0:     > are not permitted.
ferencd@0: 
ferencd@0:     This description includes both integer and floating-point numbers.
ferencd@0:     However, C++ allows more precise storage if it is known whether the number
ferencd@0:     is a signed integer, an unsigned integer or a floating-point number.
ferencd@0:     Therefore, three different types, @ref number_integer_t, @ref
ferencd@0:     number_unsigned_t and @ref number_float_t are used.
ferencd@0: 
ferencd@0:     To store unsigned integer numbers in C++, a type is defined by the
ferencd@0:     template parameter @a NumberUnsignedType which chooses the type to use.
ferencd@0: 
ferencd@0:     #### Default type
ferencd@0: 
ferencd@0:     With the default values for @a NumberUnsignedType (`uint64_t`), the
ferencd@0:     default value for @a number_unsigned_t is:
ferencd@0: 
ferencd@0:     @code {.cpp}
ferencd@0:     uint64_t
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     #### Default behavior
ferencd@0: 
ferencd@0:     - The restrictions about leading zeros is not enforced in C++. Instead,
ferencd@0:       leading zeros in integer literals lead to an interpretation as octal
ferencd@0:       number. Internally, the value will be stored as decimal number. For
ferencd@0:       instance, the C++ integer literal `010` will be serialized to `8`.
ferencd@0:       During deserialization, leading zeros yield an error.
ferencd@0:     - Not-a-number (NaN) values will be serialized to `null`.
ferencd@0: 
ferencd@0:     #### Limits
ferencd@0: 
ferencd@0:     [RFC 7159](http://rfc7159.net/rfc7159) specifies:
ferencd@0:     > An implementation may set limits on the range and precision of numbers.
ferencd@0: 
ferencd@0:     When the default type is used, the maximal integer number that can be
ferencd@0:     stored is `18446744073709551615` (UINT64_MAX) and the minimal integer
ferencd@0:     number that can be stored is `0`. Integer numbers that are out of range
ferencd@0:     will yield over/underflow when used in a constructor. During
ferencd@0:     deserialization, too large or small integer numbers will be automatically
ferencd@0:     be stored as @ref number_integer_t or @ref number_float_t.
ferencd@0: 
ferencd@0:     [RFC 7159](http://rfc7159.net/rfc7159) further states:
ferencd@0:     > Note that when such software is used, numbers that are integers and are
ferencd@0:     > in the range \f$[-2^{53}+1, 2^{53}-1]\f$ are interoperable in the sense
ferencd@0:     > that implementations will agree exactly on their numeric values.
ferencd@0: 
ferencd@0:     As this range is a subrange (when considered in conjunction with the
ferencd@0:     number_integer_t type) of the exactly supported range [0, UINT64_MAX],
ferencd@0:     this class's integer type is interoperable.
ferencd@0: 
ferencd@0:     #### Storage
ferencd@0: 
ferencd@0:     Integer number values are stored directly inside a @ref basic_json type.
ferencd@0: 
ferencd@0:     @sa @ref number_float_t -- type for number values (floating-point)
ferencd@0:     @sa @ref number_integer_t -- type for number values (integer)
ferencd@0: 
ferencd@0:     @since version 2.0.0
ferencd@0:     */
ferencd@0:     using number_unsigned_t = NumberUnsignedType;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief a type for a number (floating-point)
ferencd@0: 
ferencd@0:     [RFC 7159](http://rfc7159.net/rfc7159) describes numbers as follows:
ferencd@0:     > The representation of numbers is similar to that used in most
ferencd@0:     > programming languages. A number is represented in base 10 using decimal
ferencd@0:     > digits. It contains an integer component that may be prefixed with an
ferencd@0:     > optional minus sign, which may be followed by a fraction part and/or an
ferencd@0:     > exponent part. Leading zeros are not allowed. (...) Numeric values that
ferencd@0:     > cannot be represented in the grammar below (such as Infinity and NaN)
ferencd@0:     > are not permitted.
ferencd@0: 
ferencd@0:     This description includes both integer and floating-point numbers.
ferencd@0:     However, C++ allows more precise storage if it is known whether the number
ferencd@0:     is a signed integer, an unsigned integer or a floating-point number.
ferencd@0:     Therefore, three different types, @ref number_integer_t, @ref
ferencd@0:     number_unsigned_t and @ref number_float_t are used.
ferencd@0: 
ferencd@0:     To store floating-point numbers in C++, a type is defined by the template
ferencd@0:     parameter @a NumberFloatType which chooses the type to use.
ferencd@0: 
ferencd@0:     #### Default type
ferencd@0: 
ferencd@0:     With the default values for @a NumberFloatType (`double`), the default
ferencd@0:     value for @a number_float_t is:
ferencd@0: 
ferencd@0:     @code {.cpp}
ferencd@0:     double
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     #### Default behavior
ferencd@0: 
ferencd@0:     - The restrictions about leading zeros is not enforced in C++. Instead,
ferencd@0:       leading zeros in floating-point literals will be ignored. Internally,
ferencd@0:       the value will be stored as decimal number. For instance, the C++
ferencd@0:       floating-point literal `01.2` will be serialized to `1.2`. During
ferencd@0:       deserialization, leading zeros yield an error.
ferencd@0:     - Not-a-number (NaN) values will be serialized to `null`.
ferencd@0: 
ferencd@0:     #### Limits
ferencd@0: 
ferencd@0:     [RFC 7159](http://rfc7159.net/rfc7159) states:
ferencd@0:     > This specification allows implementations to set limits on the range and
ferencd@0:     > precision of numbers accepted. Since software that implements IEEE
ferencd@0:     > 754-2008 binary64 (double precision) numbers is generally available and
ferencd@0:     > widely used, good interoperability can be achieved by implementations
ferencd@0:     > that expect no more precision or range than these provide, in the sense
ferencd@0:     > that implementations will approximate JSON numbers within the expected
ferencd@0:     > precision.
ferencd@0: 
ferencd@0:     This implementation does exactly follow this approach, as it uses double
ferencd@0:     precision floating-point numbers. Note values smaller than
ferencd@0:     `-1.79769313486232e+308` and values greater than `1.79769313486232e+308`
ferencd@0:     will be stored as NaN internally and be serialized to `null`.
ferencd@0: 
ferencd@0:     #### Storage
ferencd@0: 
ferencd@0:     Floating-point number values are stored directly inside a @ref basic_json
ferencd@0:     type.
ferencd@0: 
ferencd@0:     @sa @ref number_integer_t -- type for number values (integer)
ferencd@0: 
ferencd@0:     @sa @ref number_unsigned_t -- type for number values (unsigned integer)
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     using number_float_t = NumberFloatType;
ferencd@0: 
ferencd@0:     /// @}
ferencd@0: 
ferencd@0:   private:
ferencd@0: 
ferencd@0:     /// helper for exception-safe object creation
ferencd@0:     template<typename T, typename... Args>
ferencd@0:     JSON_HEDLEY_RETURNS_NON_NULL
ferencd@0:     static T* create(Args&& ... args)
ferencd@0:     {
ferencd@0:         AllocatorType<T> alloc;
ferencd@0:         using AllocatorTraits = std::allocator_traits<AllocatorType<T>>;
ferencd@0: 
ferencd@0:         auto deleter = [&](T * object)
ferencd@0:         {
ferencd@0:             AllocatorTraits::deallocate(alloc, object, 1);
ferencd@0:         };
ferencd@0:         std::unique_ptr<T, decltype(deleter)> object(AllocatorTraits::allocate(alloc, 1), deleter);
ferencd@0:         AllocatorTraits::construct(alloc, object.get(), std::forward<Args>(args)...);
ferencd@0:         assert(object != nullptr);
ferencd@0:         return object.release();
ferencd@0:     }
ferencd@0: 
ferencd@0:     ////////////////////////
ferencd@0:     // JSON value storage //
ferencd@0:     ////////////////////////
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief a JSON value
ferencd@0: 
ferencd@0:     The actual storage for a JSON value of the @ref basic_json class. This
ferencd@0:     union combines the different storage types for the JSON value types
ferencd@0:     defined in @ref value_t.
ferencd@0: 
ferencd@0:     JSON type | value_t type    | used type
ferencd@0:     --------- | --------------- | ------------------------
ferencd@0:     object    | object          | pointer to @ref object_t
ferencd@0:     array     | array           | pointer to @ref array_t
ferencd@0:     string    | string          | pointer to @ref string_t
ferencd@0:     boolean   | boolean         | @ref boolean_t
ferencd@0:     number    | number_integer  | @ref number_integer_t
ferencd@0:     number    | number_unsigned | @ref number_unsigned_t
ferencd@0:     number    | number_float    | @ref number_float_t
ferencd@0:     null      | null            | *no value is stored*
ferencd@0: 
ferencd@0:     @note Variable-length types (objects, arrays, and strings) are stored as
ferencd@0:     pointers. The size of the union should not exceed 64 bits if the default
ferencd@0:     value types are used.
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     union json_value
ferencd@0:     {
ferencd@0:         /// object (stored with pointer to save storage)
ferencd@0:         object_t* object;
ferencd@0:         /// array (stored with pointer to save storage)
ferencd@0:         array_t* array;
ferencd@0:         /// string (stored with pointer to save storage)
ferencd@0:         string_t* string;
ferencd@0:         /// boolean
ferencd@0:         boolean_t boolean;
ferencd@0:         /// number (integer)
ferencd@0:         number_integer_t number_integer;
ferencd@0:         /// number (unsigned integer)
ferencd@0:         number_unsigned_t number_unsigned;
ferencd@0:         /// number (floating-point)
ferencd@0:         number_float_t number_float;
ferencd@0: 
ferencd@0:         /// default constructor (for null values)
ferencd@0:         json_value() = default;
ferencd@0:         /// constructor for booleans
ferencd@0:         json_value(boolean_t v) noexcept : boolean(v) {}
ferencd@0:         /// constructor for numbers (integer)
ferencd@0:         json_value(number_integer_t v) noexcept : number_integer(v) {}
ferencd@0:         /// constructor for numbers (unsigned)
ferencd@0:         json_value(number_unsigned_t v) noexcept : number_unsigned(v) {}
ferencd@0:         /// constructor for numbers (floating-point)
ferencd@0:         json_value(number_float_t v) noexcept : number_float(v) {}
ferencd@0:         /// constructor for empty values of a given type
ferencd@0:         json_value(value_t t)
ferencd@0:         {
ferencd@0:             switch (t)
ferencd@0:             {
ferencd@0:                 case value_t::object:
ferencd@0:                 {
ferencd@0:                     object = create<object_t>();
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case value_t::array:
ferencd@0:                 {
ferencd@0:                     array = create<array_t>();
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case value_t::string:
ferencd@0:                 {
ferencd@0:                     string = create<string_t>("");
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case value_t::boolean:
ferencd@0:                 {
ferencd@0:                     boolean = boolean_t(false);
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case value_t::number_integer:
ferencd@0:                 {
ferencd@0:                     number_integer = number_integer_t(0);
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case value_t::number_unsigned:
ferencd@0:                 {
ferencd@0:                     number_unsigned = number_unsigned_t(0);
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case value_t::number_float:
ferencd@0:                 {
ferencd@0:                     number_float = number_float_t(0.0);
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case value_t::null:
ferencd@0:                 {
ferencd@0:                     object = nullptr;  // silence warning, see #821
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 default:
ferencd@0:                 {
ferencd@0:                     object = nullptr;  // silence warning, see #821
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(t == value_t::null))
ferencd@0:                     {
ferencd@0:                         JSON_THROW(other_error::create(500, "961c151d2e87f2686a955a9be24d316f1362bf21 3.7.0")); // LCOV_EXCL_LINE
ferencd@0:                     }
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         /// constructor for strings
ferencd@0:         json_value(const string_t& value)
ferencd@0:         {
ferencd@0:             string = create<string_t>(value);
ferencd@0:         }
ferencd@0: 
ferencd@0:         /// constructor for rvalue strings
ferencd@0:         json_value(string_t&& value)
ferencd@0:         {
ferencd@0:             string = create<string_t>(std::move(value));
ferencd@0:         }
ferencd@0: 
ferencd@0:         /// constructor for objects
ferencd@0:         json_value(const object_t& value)
ferencd@0:         {
ferencd@0:             object = create<object_t>(value);
ferencd@0:         }
ferencd@0: 
ferencd@0:         /// constructor for rvalue objects
ferencd@0:         json_value(object_t&& value)
ferencd@0:         {
ferencd@0:             object = create<object_t>(std::move(value));
ferencd@0:         }
ferencd@0: 
ferencd@0:         /// constructor for arrays
ferencd@0:         json_value(const array_t& value)
ferencd@0:         {
ferencd@0:             array = create<array_t>(value);
ferencd@0:         }
ferencd@0: 
ferencd@0:         /// constructor for rvalue arrays
ferencd@0:         json_value(array_t&& value)
ferencd@0:         {
ferencd@0:             array = create<array_t>(std::move(value));
ferencd@0:         }
ferencd@0: 
ferencd@0:         void destroy(value_t t) noexcept
ferencd@0:         {
ferencd@0:             switch (t)
ferencd@0:             {
ferencd@0:                 case value_t::object:
ferencd@0:                 {
ferencd@0:                     AllocatorType<object_t> alloc;
ferencd@0:                     std::allocator_traits<decltype(alloc)>::destroy(alloc, object);
ferencd@0:                     std::allocator_traits<decltype(alloc)>::deallocate(alloc, object, 1);
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case value_t::array:
ferencd@0:                 {
ferencd@0:                     AllocatorType<array_t> alloc;
ferencd@0:                     std::allocator_traits<decltype(alloc)>::destroy(alloc, array);
ferencd@0:                     std::allocator_traits<decltype(alloc)>::deallocate(alloc, array, 1);
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case value_t::string:
ferencd@0:                 {
ferencd@0:                     AllocatorType<string_t> alloc;
ferencd@0:                     std::allocator_traits<decltype(alloc)>::destroy(alloc, string);
ferencd@0:                     std::allocator_traits<decltype(alloc)>::deallocate(alloc, string, 1);
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 default:
ferencd@0:                 {
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0:             }
ferencd@0:         }
ferencd@0:     };
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief checks the class invariants
ferencd@0: 
ferencd@0:     This function asserts the class invariants. It needs to be called at the
ferencd@0:     end of every constructor to make sure that created objects respect the
ferencd@0:     invariant. Furthermore, it has to be called each time the type of a JSON
ferencd@0:     value is changed, because the invariant expresses a relationship between
ferencd@0:     @a m_type and @a m_value.
ferencd@0:     */
ferencd@0:     void assert_invariant() const noexcept
ferencd@0:     {
ferencd@0:         assert(m_type != value_t::object or m_value.object != nullptr);
ferencd@0:         assert(m_type != value_t::array or m_value.array != nullptr);
ferencd@0:         assert(m_type != value_t::string or m_value.string != nullptr);
ferencd@0:     }
ferencd@0: 
ferencd@0:   public:
ferencd@0:     //////////////////////////
ferencd@0:     // JSON parser callback //
ferencd@0:     //////////////////////////
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief parser event types
ferencd@0: 
ferencd@0:     The parser callback distinguishes the following events:
ferencd@0:     - `object_start`: the parser read `{` and started to process a JSON object
ferencd@0:     - `key`: the parser read a key of a value in an object
ferencd@0:     - `object_end`: the parser read `}` and finished processing a JSON object
ferencd@0:     - `array_start`: the parser read `[` and started to process a JSON array
ferencd@0:     - `array_end`: the parser read `]` and finished processing a JSON array
ferencd@0:     - `value`: the parser finished reading a JSON value
ferencd@0: 
ferencd@0:     @image html callback_events.png "Example when certain parse events are triggered"
ferencd@0: 
ferencd@0:     @sa @ref parser_callback_t for more information and examples
ferencd@0:     */
ferencd@0:     using parse_event_t = typename parser::parse_event_t;
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief per-element parser callback type
ferencd@0: 
ferencd@0:     With a parser callback function, the result of parsing a JSON text can be
ferencd@0:     influenced. When passed to @ref parse, it is called on certain events
ferencd@0:     (passed as @ref parse_event_t via parameter @a event) with a set recursion
ferencd@0:     depth @a depth and context JSON value @a parsed. The return value of the
ferencd@0:     callback function is a boolean indicating whether the element that emitted
ferencd@0:     the callback shall be kept or not.
ferencd@0: 
ferencd@0:     We distinguish six scenarios (determined by the event type) in which the
ferencd@0:     callback function can be called. The following table describes the values
ferencd@0:     of the parameters @a depth, @a event, and @a parsed.
ferencd@0: 
ferencd@0:     parameter @a event | description | parameter @a depth | parameter @a parsed
ferencd@0:     ------------------ | ----------- | ------------------ | -------------------
ferencd@0:     parse_event_t::object_start | the parser read `{` and started to process a JSON object | depth of the parent of the JSON object | a JSON value with type discarded
ferencd@0:     parse_event_t::key | the parser read a key of a value in an object | depth of the currently parsed JSON object | a JSON string containing the key
ferencd@0:     parse_event_t::object_end | the parser read `}` and finished processing a JSON object | depth of the parent of the JSON object | the parsed JSON object
ferencd@0:     parse_event_t::array_start | the parser read `[` and started to process a JSON array | depth of the parent of the JSON array | a JSON value with type discarded
ferencd@0:     parse_event_t::array_end | the parser read `]` and finished processing a JSON array | depth of the parent of the JSON array | the parsed JSON array
ferencd@0:     parse_event_t::value | the parser finished reading a JSON value | depth of the value | the parsed JSON value
ferencd@0: 
ferencd@0:     @image html callback_events.png "Example when certain parse events are triggered"
ferencd@0: 
ferencd@0:     Discarding a value (i.e., returning `false`) has different effects
ferencd@0:     depending on the context in which function was called:
ferencd@0: 
ferencd@0:     - Discarded values in structured types are skipped. That is, the parser
ferencd@0:       will behave as if the discarded value was never read.
ferencd@0:     - In case a value outside a structured type is skipped, it is replaced
ferencd@0:       with `null`. This case happens if the top-level element is skipped.
ferencd@0: 
ferencd@0:     @param[in] depth  the depth of the recursion during parsing
ferencd@0: 
ferencd@0:     @param[in] event  an event of type parse_event_t indicating the context in
ferencd@0:     the callback function has been called
ferencd@0: 
ferencd@0:     @param[in,out] parsed  the current intermediate parse result; note that
ferencd@0:     writing to this value has no effect for parse_event_t::key events
ferencd@0: 
ferencd@0:     @return Whether the JSON value which called the function during parsing
ferencd@0:     should be kept (`true`) or not (`false`). In the latter case, it is either
ferencd@0:     skipped completely or replaced by an empty discarded object.
ferencd@0: 
ferencd@0:     @sa @ref parse for examples
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     using parser_callback_t = typename parser::parser_callback_t;
ferencd@0: 
ferencd@0:     //////////////////
ferencd@0:     // constructors //
ferencd@0:     //////////////////
ferencd@0: 
ferencd@0:     /// @name constructors and destructors
ferencd@0:     /// Constructors of class @ref basic_json, copy/move constructor, copy
ferencd@0:     /// assignment, static functions creating objects, and the destructor.
ferencd@0:     /// @{
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief create an empty value with a given type
ferencd@0: 
ferencd@0:     Create an empty JSON value with a given type. The value will be default
ferencd@0:     initialized with an empty value which depends on the type:
ferencd@0: 
ferencd@0:     Value type  | initial value
ferencd@0:     ----------- | -------------
ferencd@0:     null        | `null`
ferencd@0:     boolean     | `false`
ferencd@0:     string      | `""`
ferencd@0:     number      | `0`
ferencd@0:     object      | `{}`
ferencd@0:     array       | `[]`
ferencd@0: 
ferencd@0:     @param[in] v  the type of the value to create
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @exceptionsafety Strong guarantee: if an exception is thrown, there are no
ferencd@0:     changes to any JSON value.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows the constructor for different @ref
ferencd@0:     value_t values,basic_json__value_t}
ferencd@0: 
ferencd@0:     @sa @ref clear() -- restores the postcondition of this constructor
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     basic_json(const value_t v)
ferencd@0:         : m_type(v), m_value(v)
ferencd@0:     {
ferencd@0:         assert_invariant();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief create a null object
ferencd@0: 
ferencd@0:     Create a `null` JSON value. It either takes a null pointer as parameter
ferencd@0:     (explicitly creating `null`) or no parameter (implicitly creating `null`).
ferencd@0:     The passed null pointer itself is not read -- it is only used to choose
ferencd@0:     the right constructor.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this constructor never throws
ferencd@0:     exceptions.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows the constructor with and without a
ferencd@0:     null pointer parameter.,basic_json__nullptr_t}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     basic_json(std::nullptr_t = nullptr) noexcept
ferencd@0:         : basic_json(value_t::null)
ferencd@0:     {
ferencd@0:         assert_invariant();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief create a JSON value
ferencd@0: 
ferencd@0:     This is a "catch all" constructor for all compatible JSON types; that is,
ferencd@0:     types for which a `to_json()` method exists. The constructor forwards the
ferencd@0:     parameter @a val to that method (to `json_serializer<U>::to_json` method
ferencd@0:     with `U = uncvref_t<CompatibleType>`, to be exact).
ferencd@0: 
ferencd@0:     Template type @a CompatibleType includes, but is not limited to, the
ferencd@0:     following types:
ferencd@0:     - **arrays**: @ref array_t and all kinds of compatible containers such as
ferencd@0:       `std::vector`, `std::deque`, `std::list`, `std::forward_list`,
ferencd@0:       `std::array`, `std::valarray`, `std::set`, `std::unordered_set`,
ferencd@0:       `std::multiset`, and `std::unordered_multiset` with a `value_type` from
ferencd@0:       which a @ref basic_json value can be constructed.
ferencd@0:     - **objects**: @ref object_t and all kinds of compatible associative
ferencd@0:       containers such as `std::map`, `std::unordered_map`, `std::multimap`,
ferencd@0:       and `std::unordered_multimap` with a `key_type` compatible to
ferencd@0:       @ref string_t and a `value_type` from which a @ref basic_json value can
ferencd@0:       be constructed.
ferencd@0:     - **strings**: @ref string_t, string literals, and all compatible string
ferencd@0:       containers can be used.
ferencd@0:     - **numbers**: @ref number_integer_t, @ref number_unsigned_t,
ferencd@0:       @ref number_float_t, and all convertible number types such as `int`,
ferencd@0:       `size_t`, `int64_t`, `float` or `double` can be used.
ferencd@0:     - **boolean**: @ref boolean_t / `bool` can be used.
ferencd@0: 
ferencd@0:     See the examples below.
ferencd@0: 
ferencd@0:     @tparam CompatibleType a type such that:
ferencd@0:     - @a CompatibleType is not derived from `std::istream`,
ferencd@0:     - @a CompatibleType is not @ref basic_json (to avoid hijacking copy/move
ferencd@0:          constructors),
ferencd@0:     - @a CompatibleType is not a different @ref basic_json type (i.e. with different template arguments)
ferencd@0:     - @a CompatibleType is not a @ref basic_json nested type (e.g.,
ferencd@0:          @ref json_pointer, @ref iterator, etc ...)
ferencd@0:     - @ref @ref json_serializer<U> has a
ferencd@0:          `to_json(basic_json_t&, CompatibleType&&)` method
ferencd@0: 
ferencd@0:     @tparam U = `uncvref_t<CompatibleType>`
ferencd@0: 
ferencd@0:     @param[in] val the value to be forwarded to the respective constructor
ferencd@0: 
ferencd@0:     @complexity Usually linear in the size of the passed @a val, also
ferencd@0:                 depending on the implementation of the called `to_json()`
ferencd@0:                 method.
ferencd@0: 
ferencd@0:     @exceptionsafety Depends on the called constructor. For types directly
ferencd@0:     supported by the library (i.e., all types for which no `to_json()` function
ferencd@0:     was provided), strong guarantee holds: if an exception is thrown, there are
ferencd@0:     no changes to any JSON value.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows the constructor with several
ferencd@0:     compatible types.,basic_json__CompatibleType}
ferencd@0: 
ferencd@0:     @since version 2.1.0
ferencd@0:     */
ferencd@0:     template <typename CompatibleType,
ferencd@0:               typename U = detail::uncvref_t<CompatibleType>,
ferencd@0:               detail::enable_if_t<
ferencd@0:                   not detail::is_basic_json<U>::value and detail::is_compatible_type<basic_json_t, U>::value, int> = 0>
ferencd@0:     basic_json(CompatibleType && val) noexcept(noexcept(
ferencd@0:                 JSONSerializer<U>::to_json(std::declval<basic_json_t&>(),
ferencd@0:                                            std::forward<CompatibleType>(val))))
ferencd@0:     {
ferencd@0:         JSONSerializer<U>::to_json(*this, std::forward<CompatibleType>(val));
ferencd@0:         assert_invariant();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief create a JSON value from an existing one
ferencd@0: 
ferencd@0:     This is a constructor for existing @ref basic_json types.
ferencd@0:     It does not hijack copy/move constructors, since the parameter has different
ferencd@0:     template arguments than the current ones.
ferencd@0: 
ferencd@0:     The constructor tries to convert the internal @ref m_value of the parameter.
ferencd@0: 
ferencd@0:     @tparam BasicJsonType a type such that:
ferencd@0:     - @a BasicJsonType is a @ref basic_json type.
ferencd@0:     - @a BasicJsonType has different template arguments than @ref basic_json_t.
ferencd@0: 
ferencd@0:     @param[in] val the @ref basic_json value to be converted.
ferencd@0: 
ferencd@0:     @complexity Usually linear in the size of the passed @a val, also
ferencd@0:                 depending on the implementation of the called `to_json()`
ferencd@0:                 method.
ferencd@0: 
ferencd@0:     @exceptionsafety Depends on the called constructor. For types directly
ferencd@0:     supported by the library (i.e., all types for which no `to_json()` function
ferencd@0:     was provided), strong guarantee holds: if an exception is thrown, there are
ferencd@0:     no changes to any JSON value.
ferencd@0: 
ferencd@0:     @since version 3.2.0
ferencd@0:     */
ferencd@0:     template <typename BasicJsonType,
ferencd@0:               detail::enable_if_t<
ferencd@0:                   detail::is_basic_json<BasicJsonType>::value and not std::is_same<basic_json, BasicJsonType>::value, int> = 0>
ferencd@0:     basic_json(const BasicJsonType& val)
ferencd@0:     {
ferencd@0:         using other_boolean_t = typename BasicJsonType::boolean_t;
ferencd@0:         using other_number_float_t = typename BasicJsonType::number_float_t;
ferencd@0:         using other_number_integer_t = typename BasicJsonType::number_integer_t;
ferencd@0:         using other_number_unsigned_t = typename BasicJsonType::number_unsigned_t;
ferencd@0:         using other_string_t = typename BasicJsonType::string_t;
ferencd@0:         using other_object_t = typename BasicJsonType::object_t;
ferencd@0:         using other_array_t = typename BasicJsonType::array_t;
ferencd@0: 
ferencd@0:         switch (val.type())
ferencd@0:         {
ferencd@0:             case value_t::boolean:
ferencd@0:                 JSONSerializer<other_boolean_t>::to_json(*this, val.template get<other_boolean_t>());
ferencd@0:                 break;
ferencd@0:             case value_t::number_float:
ferencd@0:                 JSONSerializer<other_number_float_t>::to_json(*this, val.template get<other_number_float_t>());
ferencd@0:                 break;
ferencd@0:             case value_t::number_integer:
ferencd@0:                 JSONSerializer<other_number_integer_t>::to_json(*this, val.template get<other_number_integer_t>());
ferencd@0:                 break;
ferencd@0:             case value_t::number_unsigned:
ferencd@0:                 JSONSerializer<other_number_unsigned_t>::to_json(*this, val.template get<other_number_unsigned_t>());
ferencd@0:                 break;
ferencd@0:             case value_t::string:
ferencd@0:                 JSONSerializer<other_string_t>::to_json(*this, val.template get_ref<const other_string_t&>());
ferencd@0:                 break;
ferencd@0:             case value_t::object:
ferencd@0:                 JSONSerializer<other_object_t>::to_json(*this, val.template get_ref<const other_object_t&>());
ferencd@0:                 break;
ferencd@0:             case value_t::array:
ferencd@0:                 JSONSerializer<other_array_t>::to_json(*this, val.template get_ref<const other_array_t&>());
ferencd@0:                 break;
ferencd@0:             case value_t::null:
ferencd@0:                 *this = nullptr;
ferencd@0:                 break;
ferencd@0:             case value_t::discarded:
ferencd@0:                 m_type = value_t::discarded;
ferencd@0:                 break;
ferencd@0:             default:            // LCOV_EXCL_LINE
ferencd@0:                 assert(false);  // LCOV_EXCL_LINE
ferencd@0:         }
ferencd@0:         assert_invariant();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief create a container (array or object) from an initializer list
ferencd@0: 
ferencd@0:     Creates a JSON value of type array or object from the passed initializer
ferencd@0:     list @a init. In case @a type_deduction is `true` (default), the type of
ferencd@0:     the JSON value to be created is deducted from the initializer list @a init
ferencd@0:     according to the following rules:
ferencd@0: 
ferencd@0:     1. If the list is empty, an empty JSON object value `{}` is created.
ferencd@0:     2. If the list consists of pairs whose first element is a string, a JSON
ferencd@0:        object value is created where the first elements of the pairs are
ferencd@0:        treated as keys and the second elements are as values.
ferencd@0:     3. In all other cases, an array is created.
ferencd@0: 
ferencd@0:     The rules aim to create the best fit between a C++ initializer list and
ferencd@0:     JSON values. The rationale is as follows:
ferencd@0: 
ferencd@0:     1. The empty initializer list is written as `{}` which is exactly an empty
ferencd@0:        JSON object.
ferencd@0:     2. C++ has no way of describing mapped types other than to list a list of
ferencd@0:        pairs. As JSON requires that keys must be of type string, rule 2 is the
ferencd@0:        weakest constraint one can pose on initializer lists to interpret them
ferencd@0:        as an object.
ferencd@0:     3. In all other cases, the initializer list could not be interpreted as
ferencd@0:        JSON object type, so interpreting it as JSON array type is safe.
ferencd@0: 
ferencd@0:     With the rules described above, the following JSON values cannot be
ferencd@0:     expressed by an initializer list:
ferencd@0: 
ferencd@0:     - the empty array (`[]`): use @ref array(initializer_list_t)
ferencd@0:       with an empty initializer list in this case
ferencd@0:     - arrays whose elements satisfy rule 2: use @ref
ferencd@0:       array(initializer_list_t) with the same initializer list
ferencd@0:       in this case
ferencd@0: 
ferencd@0:     @note When used without parentheses around an empty initializer list, @ref
ferencd@0:     basic_json() is called instead of this function, yielding the JSON null
ferencd@0:     value.
ferencd@0: 
ferencd@0:     @param[in] init  initializer list with JSON values
ferencd@0: 
ferencd@0:     @param[in] type_deduction internal parameter; when set to `true`, the type
ferencd@0:     of the JSON value is deducted from the initializer list @a init; when set
ferencd@0:     to `false`, the type provided via @a manual_type is forced. This mode is
ferencd@0:     used by the functions @ref array(initializer_list_t) and
ferencd@0:     @ref object(initializer_list_t).
ferencd@0: 
ferencd@0:     @param[in] manual_type internal parameter; when @a type_deduction is set
ferencd@0:     to `false`, the created JSON value will use the provided type (only @ref
ferencd@0:     value_t::array and @ref value_t::object are valid); when @a type_deduction
ferencd@0:     is set to `true`, this parameter has no effect
ferencd@0: 
ferencd@0:     @throw type_error.301 if @a type_deduction is `false`, @a manual_type is
ferencd@0:     `value_t::object`, but @a init contains an element which is not a pair
ferencd@0:     whose first element is a string. In this case, the constructor could not
ferencd@0:     create an object. If @a type_deduction would have be `true`, an array
ferencd@0:     would have been created. See @ref object(initializer_list_t)
ferencd@0:     for an example.
ferencd@0: 
ferencd@0:     @complexity Linear in the size of the initializer list @a init.
ferencd@0: 
ferencd@0:     @exceptionsafety Strong guarantee: if an exception is thrown, there are no
ferencd@0:     changes to any JSON value.
ferencd@0: 
ferencd@0:     @liveexample{The example below shows how JSON values are created from
ferencd@0:     initializer lists.,basic_json__list_init_t}
ferencd@0: 
ferencd@0:     @sa @ref array(initializer_list_t) -- create a JSON array
ferencd@0:     value from an initializer list
ferencd@0:     @sa @ref object(initializer_list_t) -- create a JSON object
ferencd@0:     value from an initializer list
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     basic_json(initializer_list_t init,
ferencd@0:                bool type_deduction = true,
ferencd@0:                value_t manual_type = value_t::array)
ferencd@0:     {
ferencd@0:         // check if each element is an array with two elements whose first
ferencd@0:         // element is a string
ferencd@0:         bool is_an_object = std::all_of(init.begin(), init.end(),
ferencd@0:                                         [](const detail::json_ref<basic_json>& element_ref)
ferencd@0:         {
ferencd@0:             return element_ref->is_array() and element_ref->size() == 2 and (*element_ref)[0].is_string();
ferencd@0:         });
ferencd@0: 
ferencd@0:         // adjust type if type deduction is not wanted
ferencd@0:         if (not type_deduction)
ferencd@0:         {
ferencd@0:             // if array is wanted, do not create an object though possible
ferencd@0:             if (manual_type == value_t::array)
ferencd@0:             {
ferencd@0:                 is_an_object = false;
ferencd@0:             }
ferencd@0: 
ferencd@0:             // if object is wanted but impossible, throw an exception
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(manual_type == value_t::object and not is_an_object))
ferencd@0:             {
ferencd@0:                 JSON_THROW(type_error::create(301, "cannot create object from initializer list"));
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         if (is_an_object)
ferencd@0:         {
ferencd@0:             // the initializer list is a list of pairs -> create object
ferencd@0:             m_type = value_t::object;
ferencd@0:             m_value = value_t::object;
ferencd@0: 
ferencd@0:             std::for_each(init.begin(), init.end(), [this](const detail::json_ref<basic_json>& element_ref)
ferencd@0:             {
ferencd@0:                 auto element = element_ref.moved_or_copied();
ferencd@0:                 m_value.object->emplace(
ferencd@0:                     std::move(*((*element.m_value.array)[0].m_value.string)),
ferencd@0:                     std::move((*element.m_value.array)[1]));
ferencd@0:             });
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             // the initializer list describes an array -> create array
ferencd@0:             m_type = value_t::array;
ferencd@0:             m_value.array = create<array_t>(init.begin(), init.end());
ferencd@0:         }
ferencd@0: 
ferencd@0:         assert_invariant();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief explicitly create an array from an initializer list
ferencd@0: 
ferencd@0:     Creates a JSON array value from a given initializer list. That is, given a
ferencd@0:     list of values `a, b, c`, creates the JSON value `[a, b, c]`. If the
ferencd@0:     initializer list is empty, the empty array `[]` is created.
ferencd@0: 
ferencd@0:     @note This function is only needed to express two edge cases that cannot
ferencd@0:     be realized with the initializer list constructor (@ref
ferencd@0:     basic_json(initializer_list_t, bool, value_t)). These cases
ferencd@0:     are:
ferencd@0:     1. creating an array whose elements are all pairs whose first element is a
ferencd@0:     string -- in this case, the initializer list constructor would create an
ferencd@0:     object, taking the first elements as keys
ferencd@0:     2. creating an empty array -- passing the empty initializer list to the
ferencd@0:     initializer list constructor yields an empty object
ferencd@0: 
ferencd@0:     @param[in] init  initializer list with JSON values to create an array from
ferencd@0:     (optional)
ferencd@0: 
ferencd@0:     @return JSON array value
ferencd@0: 
ferencd@0:     @complexity Linear in the size of @a init.
ferencd@0: 
ferencd@0:     @exceptionsafety Strong guarantee: if an exception is thrown, there are no
ferencd@0:     changes to any JSON value.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows an example for the `array`
ferencd@0:     function.,array}
ferencd@0: 
ferencd@0:     @sa @ref basic_json(initializer_list_t, bool, value_t) --
ferencd@0:     create a JSON value from an initializer list
ferencd@0:     @sa @ref object(initializer_list_t) -- create a JSON object
ferencd@0:     value from an initializer list
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     JSON_HEDLEY_WARN_UNUSED_RESULT
ferencd@0:     static basic_json array(initializer_list_t init = {})
ferencd@0:     {
ferencd@0:         return basic_json(init, false, value_t::array);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief explicitly create an object from an initializer list
ferencd@0: 
ferencd@0:     Creates a JSON object value from a given initializer list. The initializer
ferencd@0:     lists elements must be pairs, and their first elements must be strings. If
ferencd@0:     the initializer list is empty, the empty object `{}` is created.
ferencd@0: 
ferencd@0:     @note This function is only added for symmetry reasons. In contrast to the
ferencd@0:     related function @ref array(initializer_list_t), there are
ferencd@0:     no cases which can only be expressed by this function. That is, any
ferencd@0:     initializer list @a init can also be passed to the initializer list
ferencd@0:     constructor @ref basic_json(initializer_list_t, bool, value_t).
ferencd@0: 
ferencd@0:     @param[in] init  initializer list to create an object from (optional)
ferencd@0: 
ferencd@0:     @return JSON object value
ferencd@0: 
ferencd@0:     @throw type_error.301 if @a init is not a list of pairs whose first
ferencd@0:     elements are strings. In this case, no object can be created. When such a
ferencd@0:     value is passed to @ref basic_json(initializer_list_t, bool, value_t),
ferencd@0:     an array would have been created from the passed initializer list @a init.
ferencd@0:     See example below.
ferencd@0: 
ferencd@0:     @complexity Linear in the size of @a init.
ferencd@0: 
ferencd@0:     @exceptionsafety Strong guarantee: if an exception is thrown, there are no
ferencd@0:     changes to any JSON value.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows an example for the `object`
ferencd@0:     function.,object}
ferencd@0: 
ferencd@0:     @sa @ref basic_json(initializer_list_t, bool, value_t) --
ferencd@0:     create a JSON value from an initializer list
ferencd@0:     @sa @ref array(initializer_list_t) -- create a JSON array
ferencd@0:     value from an initializer list
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     JSON_HEDLEY_WARN_UNUSED_RESULT
ferencd@0:     static basic_json object(initializer_list_t init = {})
ferencd@0:     {
ferencd@0:         return basic_json(init, false, value_t::object);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief construct an array with count copies of given value
ferencd@0: 
ferencd@0:     Constructs a JSON array value by creating @a cnt copies of a passed value.
ferencd@0:     In case @a cnt is `0`, an empty array is created.
ferencd@0: 
ferencd@0:     @param[in] cnt  the number of JSON copies of @a val to create
ferencd@0:     @param[in] val  the JSON value to copy
ferencd@0: 
ferencd@0:     @post `std::distance(begin(),end()) == cnt` holds.
ferencd@0: 
ferencd@0:     @complexity Linear in @a cnt.
ferencd@0: 
ferencd@0:     @exceptionsafety Strong guarantee: if an exception is thrown, there are no
ferencd@0:     changes to any JSON value.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows examples for the @ref
ferencd@0:     basic_json(size_type\, const basic_json&)
ferencd@0:     constructor.,basic_json__size_type_basic_json}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     basic_json(size_type cnt, const basic_json& val)
ferencd@0:         : m_type(value_t::array)
ferencd@0:     {
ferencd@0:         m_value.array = create<array_t>(cnt, val);
ferencd@0:         assert_invariant();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief construct a JSON container given an iterator range
ferencd@0: 
ferencd@0:     Constructs the JSON value with the contents of the range `[first, last)`.
ferencd@0:     The semantics depends on the different types a JSON value can have:
ferencd@0:     - In case of a null type, invalid_iterator.206 is thrown.
ferencd@0:     - In case of other primitive types (number, boolean, or string), @a first
ferencd@0:       must be `begin()` and @a last must be `end()`. In this case, the value is
ferencd@0:       copied. Otherwise, invalid_iterator.204 is thrown.
ferencd@0:     - In case of structured types (array, object), the constructor behaves as
ferencd@0:       similar versions for `std::vector` or `std::map`; that is, a JSON array
ferencd@0:       or object is constructed from the values in the range.
ferencd@0: 
ferencd@0:     @tparam InputIT an input iterator type (@ref iterator or @ref
ferencd@0:     const_iterator)
ferencd@0: 
ferencd@0:     @param[in] first begin of the range to copy from (included)
ferencd@0:     @param[in] last end of the range to copy from (excluded)
ferencd@0: 
ferencd@0:     @pre Iterators @a first and @a last must be initialized. **This
ferencd@0:          precondition is enforced with an assertion (see warning).** If
ferencd@0:          assertions are switched off, a violation of this precondition yields
ferencd@0:          undefined behavior.
ferencd@0: 
ferencd@0:     @pre Range `[first, last)` is valid. Usually, this precondition cannot be
ferencd@0:          checked efficiently. Only certain edge cases are detected; see the
ferencd@0:          description of the exceptions below. A violation of this precondition
ferencd@0:          yields undefined behavior.
ferencd@0: 
ferencd@0:     @warning A precondition is enforced with a runtime assertion that will
ferencd@0:              result in calling `std::abort` if this precondition is not met.
ferencd@0:              Assertions can be disabled by defining `NDEBUG` at compile time.
ferencd@0:              See https://en.cppreference.com/w/cpp/error/assert for more
ferencd@0:              information.
ferencd@0: 
ferencd@0:     @throw invalid_iterator.201 if iterators @a first and @a last are not
ferencd@0:     compatible (i.e., do not belong to the same JSON value). In this case,
ferencd@0:     the range `[first, last)` is undefined.
ferencd@0:     @throw invalid_iterator.204 if iterators @a first and @a last belong to a
ferencd@0:     primitive type (number, boolean, or string), but @a first does not point
ferencd@0:     to the first element any more. In this case, the range `[first, last)` is
ferencd@0:     undefined. See example code below.
ferencd@0:     @throw invalid_iterator.206 if iterators @a first and @a last belong to a
ferencd@0:     null value. In this case, the range `[first, last)` is undefined.
ferencd@0: 
ferencd@0:     @complexity Linear in distance between @a first and @a last.
ferencd@0: 
ferencd@0:     @exceptionsafety Strong guarantee: if an exception is thrown, there are no
ferencd@0:     changes to any JSON value.
ferencd@0: 
ferencd@0:     @liveexample{The example below shows several ways to create JSON values by
ferencd@0:     specifying a subrange with iterators.,basic_json__InputIt_InputIt}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     template<class InputIT, typename std::enable_if<
ferencd@0:                  std::is_same<InputIT, typename basic_json_t::iterator>::value or
ferencd@0:                  std::is_same<InputIT, typename basic_json_t::const_iterator>::value, int>::type = 0>
ferencd@0:     basic_json(InputIT first, InputIT last)
ferencd@0:     {
ferencd@0:         assert(first.m_object != nullptr);
ferencd@0:         assert(last.m_object != nullptr);
ferencd@0: 
ferencd@0:         // make sure iterator fits the current value
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(first.m_object != last.m_object))
ferencd@0:         {
ferencd@0:             JSON_THROW(invalid_iterator::create(201, "iterators are not compatible"));
ferencd@0:         }
ferencd@0: 
ferencd@0:         // copy type from first iterator
ferencd@0:         m_type = first.m_object->m_type;
ferencd@0: 
ferencd@0:         // check if iterator range is complete for primitive values
ferencd@0:         switch (m_type)
ferencd@0:         {
ferencd@0:             case value_t::boolean:
ferencd@0:             case value_t::number_float:
ferencd@0:             case value_t::number_integer:
ferencd@0:             case value_t::number_unsigned:
ferencd@0:             case value_t::string:
ferencd@0:             {
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(not first.m_it.primitive_iterator.is_begin()
ferencd@0:                                          or not last.m_it.primitive_iterator.is_end()))
ferencd@0:                 {
ferencd@0:                     JSON_THROW(invalid_iterator::create(204, "iterators out of range"));
ferencd@0:                 }
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:                 break;
ferencd@0:         }
ferencd@0: 
ferencd@0:         switch (m_type)
ferencd@0:         {
ferencd@0:             case value_t::number_integer:
ferencd@0:             {
ferencd@0:                 m_value.number_integer = first.m_object->m_value.number_integer;
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::number_unsigned:
ferencd@0:             {
ferencd@0:                 m_value.number_unsigned = first.m_object->m_value.number_unsigned;
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::number_float:
ferencd@0:             {
ferencd@0:                 m_value.number_float = first.m_object->m_value.number_float;
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::boolean:
ferencd@0:             {
ferencd@0:                 m_value.boolean = first.m_object->m_value.boolean;
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::string:
ferencd@0:             {
ferencd@0:                 m_value = *first.m_object->m_value.string;
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::object:
ferencd@0:             {
ferencd@0:                 m_value.object = create<object_t>(first.m_it.object_iterator,
ferencd@0:                                                   last.m_it.object_iterator);
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 m_value.array = create<array_t>(first.m_it.array_iterator,
ferencd@0:                                                 last.m_it.array_iterator);
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:                 JSON_THROW(invalid_iterator::create(206, "cannot construct with iterators from " +
ferencd@0:                                                     std::string(first.m_object->type_name())));
ferencd@0:         }
ferencd@0: 
ferencd@0:         assert_invariant();
ferencd@0:     }
ferencd@0: 
ferencd@0: 
ferencd@0:     ///////////////////////////////////////
ferencd@0:     // other constructors and destructor //
ferencd@0:     ///////////////////////////////////////
ferencd@0: 
ferencd@0:     /// @private
ferencd@0:     basic_json(const detail::json_ref<basic_json>& ref)
ferencd@0:         : basic_json(ref.moved_or_copied())
ferencd@0:     {}
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief copy constructor
ferencd@0: 
ferencd@0:     Creates a copy of a given JSON value.
ferencd@0: 
ferencd@0:     @param[in] other  the JSON value to copy
ferencd@0: 
ferencd@0:     @post `*this == other`
ferencd@0: 
ferencd@0:     @complexity Linear in the size of @a other.
ferencd@0: 
ferencd@0:     @exceptionsafety Strong guarantee: if an exception is thrown, there are no
ferencd@0:     changes to any JSON value.
ferencd@0: 
ferencd@0:     @requirement This function helps `basic_json` satisfying the
ferencd@0:     [Container](https://en.cppreference.com/w/cpp/named_req/Container)
ferencd@0:     requirements:
ferencd@0:     - The complexity is linear.
ferencd@0:     - As postcondition, it holds: `other == basic_json(other)`.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows an example for the copy
ferencd@0:     constructor.,basic_json__basic_json}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     basic_json(const basic_json& other)
ferencd@0:         : m_type(other.m_type)
ferencd@0:     {
ferencd@0:         // check of passed value is valid
ferencd@0:         other.assert_invariant();
ferencd@0: 
ferencd@0:         switch (m_type)
ferencd@0:         {
ferencd@0:             case value_t::object:
ferencd@0:             {
ferencd@0:                 m_value = *other.m_value.object;
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 m_value = *other.m_value.array;
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::string:
ferencd@0:             {
ferencd@0:                 m_value = *other.m_value.string;
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::boolean:
ferencd@0:             {
ferencd@0:                 m_value = other.m_value.boolean;
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::number_integer:
ferencd@0:             {
ferencd@0:                 m_value = other.m_value.number_integer;
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::number_unsigned:
ferencd@0:             {
ferencd@0:                 m_value = other.m_value.number_unsigned;
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::number_float:
ferencd@0:             {
ferencd@0:                 m_value = other.m_value.number_float;
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:                 break;
ferencd@0:         }
ferencd@0: 
ferencd@0:         assert_invariant();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief move constructor
ferencd@0: 
ferencd@0:     Move constructor. Constructs a JSON value with the contents of the given
ferencd@0:     value @a other using move semantics. It "steals" the resources from @a
ferencd@0:     other and leaves it as JSON null value.
ferencd@0: 
ferencd@0:     @param[in,out] other  value to move to this object
ferencd@0: 
ferencd@0:     @post `*this` has the same value as @a other before the call.
ferencd@0:     @post @a other is a JSON null value.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this constructor never throws
ferencd@0:     exceptions.
ferencd@0: 
ferencd@0:     @requirement This function helps `basic_json` satisfying the
ferencd@0:     [MoveConstructible](https://en.cppreference.com/w/cpp/named_req/MoveConstructible)
ferencd@0:     requirements.
ferencd@0: 
ferencd@0:     @liveexample{The code below shows the move constructor explicitly called
ferencd@0:     via std::move.,basic_json__moveconstructor}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     basic_json(basic_json&& other) noexcept
ferencd@0:         : m_type(std::move(other.m_type)),
ferencd@0:           m_value(std::move(other.m_value))
ferencd@0:     {
ferencd@0:         // check that passed value is valid
ferencd@0:         other.assert_invariant();
ferencd@0: 
ferencd@0:         // invalidate payload
ferencd@0:         other.m_type = value_t::null;
ferencd@0:         other.m_value = {};
ferencd@0: 
ferencd@0:         assert_invariant();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief copy assignment
ferencd@0: 
ferencd@0:     Copy assignment operator. Copies a JSON value via the "copy and swap"
ferencd@0:     strategy: It is expressed in terms of the copy constructor, destructor,
ferencd@0:     and the `swap()` member function.
ferencd@0: 
ferencd@0:     @param[in] other  value to copy from
ferencd@0: 
ferencd@0:     @complexity Linear.
ferencd@0: 
ferencd@0:     @requirement This function helps `basic_json` satisfying the
ferencd@0:     [Container](https://en.cppreference.com/w/cpp/named_req/Container)
ferencd@0:     requirements:
ferencd@0:     - The complexity is linear.
ferencd@0: 
ferencd@0:     @liveexample{The code below shows and example for the copy assignment. It
ferencd@0:     creates a copy of value `a` which is then swapped with `b`. Finally\, the
ferencd@0:     copy of `a` (which is the null value after the swap) is
ferencd@0:     destroyed.,basic_json__copyassignment}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     basic_json& operator=(basic_json other) noexcept (
ferencd@0:         std::is_nothrow_move_constructible<value_t>::value and
ferencd@0:         std::is_nothrow_move_assignable<value_t>::value and
ferencd@0:         std::is_nothrow_move_constructible<json_value>::value and
ferencd@0:         std::is_nothrow_move_assignable<json_value>::value
ferencd@0:     )
ferencd@0:     {
ferencd@0:         // check that passed value is valid
ferencd@0:         other.assert_invariant();
ferencd@0: 
ferencd@0:         using std::swap;
ferencd@0:         swap(m_type, other.m_type);
ferencd@0:         swap(m_value, other.m_value);
ferencd@0: 
ferencd@0:         assert_invariant();
ferencd@0:         return *this;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief destructor
ferencd@0: 
ferencd@0:     Destroys the JSON value and frees all allocated memory.
ferencd@0: 
ferencd@0:     @complexity Linear.
ferencd@0: 
ferencd@0:     @requirement This function helps `basic_json` satisfying the
ferencd@0:     [Container](https://en.cppreference.com/w/cpp/named_req/Container)
ferencd@0:     requirements:
ferencd@0:     - The complexity is linear.
ferencd@0:     - All stored elements are destroyed and all memory is freed.
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     ~basic_json() noexcept
ferencd@0:     {
ferencd@0:         assert_invariant();
ferencd@0:         m_value.destroy(m_type);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// @}
ferencd@0: 
ferencd@0:   public:
ferencd@0:     ///////////////////////
ferencd@0:     // object inspection //
ferencd@0:     ///////////////////////
ferencd@0: 
ferencd@0:     /// @name object inspection
ferencd@0:     /// Functions to inspect the type of a JSON value.
ferencd@0:     /// @{
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief serialization
ferencd@0: 
ferencd@0:     Serialization function for JSON values. The function tries to mimic
ferencd@0:     Python's `json.dumps()` function, and currently supports its @a indent
ferencd@0:     and @a ensure_ascii parameters.
ferencd@0: 
ferencd@0:     @param[in] indent If indent is nonnegative, then array elements and object
ferencd@0:     members will be pretty-printed with that indent level. An indent level of
ferencd@0:     `0` will only insert newlines. `-1` (the default) selects the most compact
ferencd@0:     representation.
ferencd@0:     @param[in] indent_char The character to use for indentation if @a indent is
ferencd@0:     greater than `0`. The default is ` ` (space).
ferencd@0:     @param[in] ensure_ascii If @a ensure_ascii is true, all non-ASCII characters
ferencd@0:     in the output are escaped with `\uXXXX` sequences, and the result consists
ferencd@0:     of ASCII characters only.
ferencd@0:     @param[in] error_handler  how to react on decoding errors; there are three
ferencd@0:     possible values: `strict` (throws and exception in case a decoding error
ferencd@0:     occurs; default), `replace` (replace invalid UTF-8 sequences with U+FFFD),
ferencd@0:     and `ignore` (ignore invalid UTF-8 sequences during serialization).
ferencd@0: 
ferencd@0:     @return string containing the serialization of the JSON value
ferencd@0: 
ferencd@0:     @throw type_error.316 if a string stored inside the JSON value is not
ferencd@0:                           UTF-8 encoded
ferencd@0: 
ferencd@0:     @complexity Linear.
ferencd@0: 
ferencd@0:     @exceptionsafety Strong guarantee: if an exception is thrown, there are no
ferencd@0:     changes in the JSON value.
ferencd@0: 
ferencd@0:     @liveexample{The following example shows the effect of different @a indent\,
ferencd@0:     @a indent_char\, and @a ensure_ascii parameters to the result of the
ferencd@0:     serialization.,dump}
ferencd@0: 
ferencd@0:     @see https://docs.python.org/2/library/json.html#json.dump
ferencd@0: 
ferencd@0:     @since version 1.0.0; indentation character @a indent_char, option
ferencd@0:            @a ensure_ascii and exceptions added in version 3.0.0; error
ferencd@0:            handlers added in version 3.4.0.
ferencd@0:     */
ferencd@0:     string_t dump(const int indent = -1,
ferencd@0:                   const char indent_char = ' ',
ferencd@0:                   const bool ensure_ascii = false,
ferencd@0:                   const error_handler_t error_handler = error_handler_t::strict) const
ferencd@0:     {
ferencd@0:         string_t result;
ferencd@0:         serializer s(detail::output_adapter<char, string_t>(result), indent_char, error_handler);
ferencd@0: 
ferencd@0:         if (indent >= 0)
ferencd@0:         {
ferencd@0:             s.dump(*this, true, ensure_ascii, static_cast<unsigned int>(indent));
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             s.dump(*this, false, ensure_ascii, 0);
ferencd@0:         }
ferencd@0: 
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief return the type of the JSON value (explicit)
ferencd@0: 
ferencd@0:     Return the type of the JSON value as a value from the @ref value_t
ferencd@0:     enumeration.
ferencd@0: 
ferencd@0:     @return the type of the JSON value
ferencd@0:             Value type                | return value
ferencd@0:             ------------------------- | -------------------------
ferencd@0:             null                      | value_t::null
ferencd@0:             boolean                   | value_t::boolean
ferencd@0:             string                    | value_t::string
ferencd@0:             number (integer)          | value_t::number_integer
ferencd@0:             number (unsigned integer) | value_t::number_unsigned
ferencd@0:             number (floating-point)   | value_t::number_float
ferencd@0:             object                    | value_t::object
ferencd@0:             array                     | value_t::array
ferencd@0:             discarded                 | value_t::discarded
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this member function never throws
ferencd@0:     exceptions.
ferencd@0: 
ferencd@0:     @liveexample{The following code exemplifies `type()` for all JSON
ferencd@0:     types.,type}
ferencd@0: 
ferencd@0:     @sa @ref operator value_t() -- return the type of the JSON value (implicit)
ferencd@0:     @sa @ref type_name() -- return the type as string
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     constexpr value_t type() const noexcept
ferencd@0:     {
ferencd@0:         return m_type;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief return whether type is primitive
ferencd@0: 
ferencd@0:     This function returns true if and only if the JSON type is primitive
ferencd@0:     (string, number, boolean, or null).
ferencd@0: 
ferencd@0:     @return `true` if type is primitive (string, number, boolean, or null),
ferencd@0:     `false` otherwise.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this member function never throws
ferencd@0:     exceptions.
ferencd@0: 
ferencd@0:     @liveexample{The following code exemplifies `is_primitive()` for all JSON
ferencd@0:     types.,is_primitive}
ferencd@0: 
ferencd@0:     @sa @ref is_structured() -- returns whether JSON value is structured
ferencd@0:     @sa @ref is_null() -- returns whether JSON value is `null`
ferencd@0:     @sa @ref is_string() -- returns whether JSON value is a string
ferencd@0:     @sa @ref is_boolean() -- returns whether JSON value is a boolean
ferencd@0:     @sa @ref is_number() -- returns whether JSON value is a number
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     constexpr bool is_primitive() const noexcept
ferencd@0:     {
ferencd@0:         return is_null() or is_string() or is_boolean() or is_number();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief return whether type is structured
ferencd@0: 
ferencd@0:     This function returns true if and only if the JSON type is structured
ferencd@0:     (array or object).
ferencd@0: 
ferencd@0:     @return `true` if type is structured (array or object), `false` otherwise.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this member function never throws
ferencd@0:     exceptions.
ferencd@0: 
ferencd@0:     @liveexample{The following code exemplifies `is_structured()` for all JSON
ferencd@0:     types.,is_structured}
ferencd@0: 
ferencd@0:     @sa @ref is_primitive() -- returns whether value is primitive
ferencd@0:     @sa @ref is_array() -- returns whether value is an array
ferencd@0:     @sa @ref is_object() -- returns whether value is an object
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     constexpr bool is_structured() const noexcept
ferencd@0:     {
ferencd@0:         return is_array() or is_object();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief return whether value is null
ferencd@0: 
ferencd@0:     This function returns true if and only if the JSON value is null.
ferencd@0: 
ferencd@0:     @return `true` if type is null, `false` otherwise.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this member function never throws
ferencd@0:     exceptions.
ferencd@0: 
ferencd@0:     @liveexample{The following code exemplifies `is_null()` for all JSON
ferencd@0:     types.,is_null}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     constexpr bool is_null() const noexcept
ferencd@0:     {
ferencd@0:         return m_type == value_t::null;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief return whether value is a boolean
ferencd@0: 
ferencd@0:     This function returns true if and only if the JSON value is a boolean.
ferencd@0: 
ferencd@0:     @return `true` if type is boolean, `false` otherwise.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this member function never throws
ferencd@0:     exceptions.
ferencd@0: 
ferencd@0:     @liveexample{The following code exemplifies `is_boolean()` for all JSON
ferencd@0:     types.,is_boolean}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     constexpr bool is_boolean() const noexcept
ferencd@0:     {
ferencd@0:         return m_type == value_t::boolean;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief return whether value is a number
ferencd@0: 
ferencd@0:     This function returns true if and only if the JSON value is a number. This
ferencd@0:     includes both integer (signed and unsigned) and floating-point values.
ferencd@0: 
ferencd@0:     @return `true` if type is number (regardless whether integer, unsigned
ferencd@0:     integer or floating-type), `false` otherwise.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this member function never throws
ferencd@0:     exceptions.
ferencd@0: 
ferencd@0:     @liveexample{The following code exemplifies `is_number()` for all JSON
ferencd@0:     types.,is_number}
ferencd@0: 
ferencd@0:     @sa @ref is_number_integer() -- check if value is an integer or unsigned
ferencd@0:     integer number
ferencd@0:     @sa @ref is_number_unsigned() -- check if value is an unsigned integer
ferencd@0:     number
ferencd@0:     @sa @ref is_number_float() -- check if value is a floating-point number
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     constexpr bool is_number() const noexcept
ferencd@0:     {
ferencd@0:         return is_number_integer() or is_number_float();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief return whether value is an integer number
ferencd@0: 
ferencd@0:     This function returns true if and only if the JSON value is a signed or
ferencd@0:     unsigned integer number. This excludes floating-point values.
ferencd@0: 
ferencd@0:     @return `true` if type is an integer or unsigned integer number, `false`
ferencd@0:     otherwise.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this member function never throws
ferencd@0:     exceptions.
ferencd@0: 
ferencd@0:     @liveexample{The following code exemplifies `is_number_integer()` for all
ferencd@0:     JSON types.,is_number_integer}
ferencd@0: 
ferencd@0:     @sa @ref is_number() -- check if value is a number
ferencd@0:     @sa @ref is_number_unsigned() -- check if value is an unsigned integer
ferencd@0:     number
ferencd@0:     @sa @ref is_number_float() -- check if value is a floating-point number
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     constexpr bool is_number_integer() const noexcept
ferencd@0:     {
ferencd@0:         return m_type == value_t::number_integer or m_type == value_t::number_unsigned;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief return whether value is an unsigned integer number
ferencd@0: 
ferencd@0:     This function returns true if and only if the JSON value is an unsigned
ferencd@0:     integer number. This excludes floating-point and signed integer values.
ferencd@0: 
ferencd@0:     @return `true` if type is an unsigned integer number, `false` otherwise.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this member function never throws
ferencd@0:     exceptions.
ferencd@0: 
ferencd@0:     @liveexample{The following code exemplifies `is_number_unsigned()` for all
ferencd@0:     JSON types.,is_number_unsigned}
ferencd@0: 
ferencd@0:     @sa @ref is_number() -- check if value is a number
ferencd@0:     @sa @ref is_number_integer() -- check if value is an integer or unsigned
ferencd@0:     integer number
ferencd@0:     @sa @ref is_number_float() -- check if value is a floating-point number
ferencd@0: 
ferencd@0:     @since version 2.0.0
ferencd@0:     */
ferencd@0:     constexpr bool is_number_unsigned() const noexcept
ferencd@0:     {
ferencd@0:         return m_type == value_t::number_unsigned;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief return whether value is a floating-point number
ferencd@0: 
ferencd@0:     This function returns true if and only if the JSON value is a
ferencd@0:     floating-point number. This excludes signed and unsigned integer values.
ferencd@0: 
ferencd@0:     @return `true` if type is a floating-point number, `false` otherwise.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this member function never throws
ferencd@0:     exceptions.
ferencd@0: 
ferencd@0:     @liveexample{The following code exemplifies `is_number_float()` for all
ferencd@0:     JSON types.,is_number_float}
ferencd@0: 
ferencd@0:     @sa @ref is_number() -- check if value is number
ferencd@0:     @sa @ref is_number_integer() -- check if value is an integer number
ferencd@0:     @sa @ref is_number_unsigned() -- check if value is an unsigned integer
ferencd@0:     number
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     constexpr bool is_number_float() const noexcept
ferencd@0:     {
ferencd@0:         return m_type == value_t::number_float;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief return whether value is an object
ferencd@0: 
ferencd@0:     This function returns true if and only if the JSON value is an object.
ferencd@0: 
ferencd@0:     @return `true` if type is object, `false` otherwise.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this member function never throws
ferencd@0:     exceptions.
ferencd@0: 
ferencd@0:     @liveexample{The following code exemplifies `is_object()` for all JSON
ferencd@0:     types.,is_object}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     constexpr bool is_object() const noexcept
ferencd@0:     {
ferencd@0:         return m_type == value_t::object;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief return whether value is an array
ferencd@0: 
ferencd@0:     This function returns true if and only if the JSON value is an array.
ferencd@0: 
ferencd@0:     @return `true` if type is array, `false` otherwise.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this member function never throws
ferencd@0:     exceptions.
ferencd@0: 
ferencd@0:     @liveexample{The following code exemplifies `is_array()` for all JSON
ferencd@0:     types.,is_array}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     constexpr bool is_array() const noexcept
ferencd@0:     {
ferencd@0:         return m_type == value_t::array;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief return whether value is a string
ferencd@0: 
ferencd@0:     This function returns true if and only if the JSON value is a string.
ferencd@0: 
ferencd@0:     @return `true` if type is string, `false` otherwise.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this member function never throws
ferencd@0:     exceptions.
ferencd@0: 
ferencd@0:     @liveexample{The following code exemplifies `is_string()` for all JSON
ferencd@0:     types.,is_string}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     constexpr bool is_string() const noexcept
ferencd@0:     {
ferencd@0:         return m_type == value_t::string;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief return whether value is discarded
ferencd@0: 
ferencd@0:     This function returns true if and only if the JSON value was discarded
ferencd@0:     during parsing with a callback function (see @ref parser_callback_t).
ferencd@0: 
ferencd@0:     @note This function will always be `false` for JSON values after parsing.
ferencd@0:     That is, discarded values can only occur during parsing, but will be
ferencd@0:     removed when inside a structured value or replaced by null in other cases.
ferencd@0: 
ferencd@0:     @return `true` if type is discarded, `false` otherwise.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this member function never throws
ferencd@0:     exceptions.
ferencd@0: 
ferencd@0:     @liveexample{The following code exemplifies `is_discarded()` for all JSON
ferencd@0:     types.,is_discarded}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     constexpr bool is_discarded() const noexcept
ferencd@0:     {
ferencd@0:         return m_type == value_t::discarded;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief return the type of the JSON value (implicit)
ferencd@0: 
ferencd@0:     Implicitly return the type of the JSON value as a value from the @ref
ferencd@0:     value_t enumeration.
ferencd@0: 
ferencd@0:     @return the type of the JSON value
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this member function never throws
ferencd@0:     exceptions.
ferencd@0: 
ferencd@0:     @liveexample{The following code exemplifies the @ref value_t operator for
ferencd@0:     all JSON types.,operator__value_t}
ferencd@0: 
ferencd@0:     @sa @ref type() -- return the type of the JSON value (explicit)
ferencd@0:     @sa @ref type_name() -- return the type as string
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     constexpr operator value_t() const noexcept
ferencd@0:     {
ferencd@0:         return m_type;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// @}
ferencd@0: 
ferencd@0:   private:
ferencd@0:     //////////////////
ferencd@0:     // value access //
ferencd@0:     //////////////////
ferencd@0: 
ferencd@0:     /// get a boolean (explicit)
ferencd@0:     boolean_t get_impl(boolean_t* /*unused*/) const
ferencd@0:     {
ferencd@0:         if (JSON_HEDLEY_LIKELY(is_boolean()))
ferencd@0:         {
ferencd@0:             return m_value.boolean;
ferencd@0:         }
ferencd@0: 
ferencd@0:         JSON_THROW(type_error::create(302, "type must be boolean, but is " + std::string(type_name())));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// get a pointer to the value (object)
ferencd@0:     object_t* get_impl_ptr(object_t* /*unused*/) noexcept
ferencd@0:     {
ferencd@0:         return is_object() ? m_value.object : nullptr;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// get a pointer to the value (object)
ferencd@0:     constexpr const object_t* get_impl_ptr(const object_t* /*unused*/) const noexcept
ferencd@0:     {
ferencd@0:         return is_object() ? m_value.object : nullptr;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// get a pointer to the value (array)
ferencd@0:     array_t* get_impl_ptr(array_t* /*unused*/) noexcept
ferencd@0:     {
ferencd@0:         return is_array() ? m_value.array : nullptr;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// get a pointer to the value (array)
ferencd@0:     constexpr const array_t* get_impl_ptr(const array_t* /*unused*/) const noexcept
ferencd@0:     {
ferencd@0:         return is_array() ? m_value.array : nullptr;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// get a pointer to the value (string)
ferencd@0:     string_t* get_impl_ptr(string_t* /*unused*/) noexcept
ferencd@0:     {
ferencd@0:         return is_string() ? m_value.string : nullptr;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// get a pointer to the value (string)
ferencd@0:     constexpr const string_t* get_impl_ptr(const string_t* /*unused*/) const noexcept
ferencd@0:     {
ferencd@0:         return is_string() ? m_value.string : nullptr;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// get a pointer to the value (boolean)
ferencd@0:     boolean_t* get_impl_ptr(boolean_t* /*unused*/) noexcept
ferencd@0:     {
ferencd@0:         return is_boolean() ? &m_value.boolean : nullptr;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// get a pointer to the value (boolean)
ferencd@0:     constexpr const boolean_t* get_impl_ptr(const boolean_t* /*unused*/) const noexcept
ferencd@0:     {
ferencd@0:         return is_boolean() ? &m_value.boolean : nullptr;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// get a pointer to the value (integer number)
ferencd@0:     number_integer_t* get_impl_ptr(number_integer_t* /*unused*/) noexcept
ferencd@0:     {
ferencd@0:         return is_number_integer() ? &m_value.number_integer : nullptr;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// get a pointer to the value (integer number)
ferencd@0:     constexpr const number_integer_t* get_impl_ptr(const number_integer_t* /*unused*/) const noexcept
ferencd@0:     {
ferencd@0:         return is_number_integer() ? &m_value.number_integer : nullptr;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// get a pointer to the value (unsigned number)
ferencd@0:     number_unsigned_t* get_impl_ptr(number_unsigned_t* /*unused*/) noexcept
ferencd@0:     {
ferencd@0:         return is_number_unsigned() ? &m_value.number_unsigned : nullptr;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// get a pointer to the value (unsigned number)
ferencd@0:     constexpr const number_unsigned_t* get_impl_ptr(const number_unsigned_t* /*unused*/) const noexcept
ferencd@0:     {
ferencd@0:         return is_number_unsigned() ? &m_value.number_unsigned : nullptr;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// get a pointer to the value (floating-point number)
ferencd@0:     number_float_t* get_impl_ptr(number_float_t* /*unused*/) noexcept
ferencd@0:     {
ferencd@0:         return is_number_float() ? &m_value.number_float : nullptr;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// get a pointer to the value (floating-point number)
ferencd@0:     constexpr const number_float_t* get_impl_ptr(const number_float_t* /*unused*/) const noexcept
ferencd@0:     {
ferencd@0:         return is_number_float() ? &m_value.number_float : nullptr;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief helper function to implement get_ref()
ferencd@0: 
ferencd@0:     This function helps to implement get_ref() without code duplication for
ferencd@0:     const and non-const overloads
ferencd@0: 
ferencd@0:     @tparam ThisType will be deduced as `basic_json` or `const basic_json`
ferencd@0: 
ferencd@0:     @throw type_error.303 if ReferenceType does not match underlying value
ferencd@0:     type of the current JSON
ferencd@0:     */
ferencd@0:     template<typename ReferenceType, typename ThisType>
ferencd@0:     static ReferenceType get_ref_impl(ThisType& obj)
ferencd@0:     {
ferencd@0:         // delegate the call to get_ptr<>()
ferencd@0:         auto ptr = obj.template get_ptr<typename std::add_pointer<ReferenceType>::type>();
ferencd@0: 
ferencd@0:         if (JSON_HEDLEY_LIKELY(ptr != nullptr))
ferencd@0:         {
ferencd@0:             return *ptr;
ferencd@0:         }
ferencd@0: 
ferencd@0:         JSON_THROW(type_error::create(303, "incompatible ReferenceType for get_ref, actual type is " + std::string(obj.type_name())));
ferencd@0:     }
ferencd@0: 
ferencd@0:   public:
ferencd@0:     /// @name value access
ferencd@0:     /// Direct access to the stored value of a JSON value.
ferencd@0:     /// @{
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief get special-case overload
ferencd@0: 
ferencd@0:     This overloads avoids a lot of template boilerplate, it can be seen as the
ferencd@0:     identity method
ferencd@0: 
ferencd@0:     @tparam BasicJsonType == @ref basic_json
ferencd@0: 
ferencd@0:     @return a copy of *this
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @since version 2.1.0
ferencd@0:     */
ferencd@0:     template<typename BasicJsonType, detail::enable_if_t<
ferencd@0:                  std::is_same<typename std::remove_const<BasicJsonType>::type, basic_json_t>::value,
ferencd@0:                  int> = 0>
ferencd@0:     basic_json get() const
ferencd@0:     {
ferencd@0:         return *this;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief get special-case overload
ferencd@0: 
ferencd@0:     This overloads converts the current @ref basic_json in a different
ferencd@0:     @ref basic_json type
ferencd@0: 
ferencd@0:     @tparam BasicJsonType == @ref basic_json
ferencd@0: 
ferencd@0:     @return a copy of *this, converted into @tparam BasicJsonType
ferencd@0: 
ferencd@0:     @complexity Depending on the implementation of the called `from_json()`
ferencd@0:                 method.
ferencd@0: 
ferencd@0:     @since version 3.2.0
ferencd@0:     */
ferencd@0:     template<typename BasicJsonType, detail::enable_if_t<
ferencd@0:                  not std::is_same<BasicJsonType, basic_json>::value and
ferencd@0:                  detail::is_basic_json<BasicJsonType>::value, int> = 0>
ferencd@0:     BasicJsonType get() const
ferencd@0:     {
ferencd@0:         return *this;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief get a value (explicit)
ferencd@0: 
ferencd@0:     Explicit type conversion between the JSON value and a compatible value
ferencd@0:     which is [CopyConstructible](https://en.cppreference.com/w/cpp/named_req/CopyConstructible)
ferencd@0:     and [DefaultConstructible](https://en.cppreference.com/w/cpp/named_req/DefaultConstructible).
ferencd@0:     The value is converted by calling the @ref json_serializer<ValueType>
ferencd@0:     `from_json()` method.
ferencd@0: 
ferencd@0:     The function is equivalent to executing
ferencd@0:     @code {.cpp}
ferencd@0:     ValueType ret;
ferencd@0:     JSONSerializer<ValueType>::from_json(*this, ret);
ferencd@0:     return ret;
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     This overloads is chosen if:
ferencd@0:     - @a ValueType is not @ref basic_json,
ferencd@0:     - @ref json_serializer<ValueType> has a `from_json()` method of the form
ferencd@0:       `void from_json(const basic_json&, ValueType&)`, and
ferencd@0:     - @ref json_serializer<ValueType> does not have a `from_json()` method of
ferencd@0:       the form `ValueType from_json(const basic_json&)`
ferencd@0: 
ferencd@0:     @tparam ValueTypeCV the provided value type
ferencd@0:     @tparam ValueType the returned value type
ferencd@0: 
ferencd@0:     @return copy of the JSON value, converted to @a ValueType
ferencd@0: 
ferencd@0:     @throw what @ref json_serializer<ValueType> `from_json()` method throws
ferencd@0: 
ferencd@0:     @liveexample{The example below shows several conversions from JSON values
ferencd@0:     to other types. There a few things to note: (1) Floating-point numbers can
ferencd@0:     be converted to integers\, (2) A JSON array can be converted to a standard
ferencd@0:     `std::vector<short>`\, (3) A JSON object can be converted to C++
ferencd@0:     associative containers such as `std::unordered_map<std::string\,
ferencd@0:     json>`.,get__ValueType_const}
ferencd@0: 
ferencd@0:     @since version 2.1.0
ferencd@0:     */
ferencd@0:     template<typename ValueTypeCV, typename ValueType = detail::uncvref_t<ValueTypeCV>,
ferencd@0:              detail::enable_if_t <
ferencd@0:                  not detail::is_basic_json<ValueType>::value and
ferencd@0:                  detail::has_from_json<basic_json_t, ValueType>::value and
ferencd@0:                  not detail::has_non_default_from_json<basic_json_t, ValueType>::value,
ferencd@0:                  int> = 0>
ferencd@0:     ValueType get() const noexcept(noexcept(
ferencd@0:                                        JSONSerializer<ValueType>::from_json(std::declval<const basic_json_t&>(), std::declval<ValueType&>())))
ferencd@0:     {
ferencd@0:         // we cannot static_assert on ValueTypeCV being non-const, because
ferencd@0:         // there is support for get<const basic_json_t>(), which is why we
ferencd@0:         // still need the uncvref
ferencd@0:         static_assert(not std::is_reference<ValueTypeCV>::value,
ferencd@0:                       "get() cannot be used with reference types, you might want to use get_ref()");
ferencd@0:         static_assert(std::is_default_constructible<ValueType>::value,
ferencd@0:                       "types must be DefaultConstructible when used with get()");
ferencd@0: 
ferencd@0:         ValueType ret;
ferencd@0:         JSONSerializer<ValueType>::from_json(*this, ret);
ferencd@0:         return ret;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief get a value (explicit); special case
ferencd@0: 
ferencd@0:     Explicit type conversion between the JSON value and a compatible value
ferencd@0:     which is **not** [CopyConstructible](https://en.cppreference.com/w/cpp/named_req/CopyConstructible)
ferencd@0:     and **not** [DefaultConstructible](https://en.cppreference.com/w/cpp/named_req/DefaultConstructible).
ferencd@0:     The value is converted by calling the @ref json_serializer<ValueType>
ferencd@0:     `from_json()` method.
ferencd@0: 
ferencd@0:     The function is equivalent to executing
ferencd@0:     @code {.cpp}
ferencd@0:     return JSONSerializer<ValueTypeCV>::from_json(*this);
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     This overloads is chosen if:
ferencd@0:     - @a ValueType is not @ref basic_json and
ferencd@0:     - @ref json_serializer<ValueType> has a `from_json()` method of the form
ferencd@0:       `ValueType from_json(const basic_json&)`
ferencd@0: 
ferencd@0:     @note If @ref json_serializer<ValueType> has both overloads of
ferencd@0:     `from_json()`, this one is chosen.
ferencd@0: 
ferencd@0:     @tparam ValueTypeCV the provided value type
ferencd@0:     @tparam ValueType the returned value type
ferencd@0: 
ferencd@0:     @return copy of the JSON value, converted to @a ValueType
ferencd@0: 
ferencd@0:     @throw what @ref json_serializer<ValueType> `from_json()` method throws
ferencd@0: 
ferencd@0:     @since version 2.1.0
ferencd@0:     */
ferencd@0:     template<typename ValueTypeCV, typename ValueType = detail::uncvref_t<ValueTypeCV>,
ferencd@0:              detail::enable_if_t<not std::is_same<basic_json_t, ValueType>::value and
ferencd@0:                                  detail::has_non_default_from_json<basic_json_t, ValueType>::value,
ferencd@0:                                  int> = 0>
ferencd@0:     ValueType get() const noexcept(noexcept(
ferencd@0:                                        JSONSerializer<ValueTypeCV>::from_json(std::declval<const basic_json_t&>())))
ferencd@0:     {
ferencd@0:         static_assert(not std::is_reference<ValueTypeCV>::value,
ferencd@0:                       "get() cannot be used with reference types, you might want to use get_ref()");
ferencd@0:         return JSONSerializer<ValueTypeCV>::from_json(*this);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief get a value (explicit)
ferencd@0: 
ferencd@0:     Explicit type conversion between the JSON value and a compatible value.
ferencd@0:     The value is filled into the input parameter by calling the @ref json_serializer<ValueType>
ferencd@0:     `from_json()` method.
ferencd@0: 
ferencd@0:     The function is equivalent to executing
ferencd@0:     @code {.cpp}
ferencd@0:     ValueType v;
ferencd@0:     JSONSerializer<ValueType>::from_json(*this, v);
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     This overloads is chosen if:
ferencd@0:     - @a ValueType is not @ref basic_json,
ferencd@0:     - @ref json_serializer<ValueType> has a `from_json()` method of the form
ferencd@0:       `void from_json(const basic_json&, ValueType&)`, and
ferencd@0: 
ferencd@0:     @tparam ValueType the input parameter type.
ferencd@0: 
ferencd@0:     @return the input parameter, allowing chaining calls.
ferencd@0: 
ferencd@0:     @throw what @ref json_serializer<ValueType> `from_json()` method throws
ferencd@0: 
ferencd@0:     @liveexample{The example below shows several conversions from JSON values
ferencd@0:     to other types. There a few things to note: (1) Floating-point numbers can
ferencd@0:     be converted to integers\, (2) A JSON array can be converted to a standard
ferencd@0:     `std::vector<short>`\, (3) A JSON object can be converted to C++
ferencd@0:     associative containers such as `std::unordered_map<std::string\,
ferencd@0:     json>`.,get_to}
ferencd@0: 
ferencd@0:     @since version 3.3.0
ferencd@0:     */
ferencd@0:     template<typename ValueType,
ferencd@0:              detail::enable_if_t <
ferencd@0:                  not detail::is_basic_json<ValueType>::value and
ferencd@0:                  detail::has_from_json<basic_json_t, ValueType>::value,
ferencd@0:                  int> = 0>
ferencd@0:     ValueType & get_to(ValueType& v) const noexcept(noexcept(
ferencd@0:                 JSONSerializer<ValueType>::from_json(std::declval<const basic_json_t&>(), v)))
ferencd@0:     {
ferencd@0:         JSONSerializer<ValueType>::from_json(*this, v);
ferencd@0:         return v;
ferencd@0:     }
ferencd@0: 
ferencd@0:     template <
ferencd@0:         typename T, std::size_t N,
ferencd@0:         typename Array = T (&)[N],
ferencd@0:         detail::enable_if_t <
ferencd@0:             detail::has_from_json<basic_json_t, Array>::value, int > = 0 >
ferencd@0:     Array get_to(T (&v)[N]) const
ferencd@0:     noexcept(noexcept(JSONSerializer<Array>::from_json(
ferencd@0:                           std::declval<const basic_json_t&>(), v)))
ferencd@0:     {
ferencd@0:         JSONSerializer<Array>::from_json(*this, v);
ferencd@0:         return v;
ferencd@0:     }
ferencd@0: 
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief get a pointer value (implicit)
ferencd@0: 
ferencd@0:     Implicit pointer access to the internally stored JSON value. No copies are
ferencd@0:     made.
ferencd@0: 
ferencd@0:     @warning Writing data to the pointee of the result yields an undefined
ferencd@0:     state.
ferencd@0: 
ferencd@0:     @tparam PointerType pointer type; must be a pointer to @ref array_t, @ref
ferencd@0:     object_t, @ref string_t, @ref boolean_t, @ref number_integer_t,
ferencd@0:     @ref number_unsigned_t, or @ref number_float_t. Enforced by a static
ferencd@0:     assertion.
ferencd@0: 
ferencd@0:     @return pointer to the internally stored JSON value if the requested
ferencd@0:     pointer type @a PointerType fits to the JSON value; `nullptr` otherwise
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @liveexample{The example below shows how pointers to internal values of a
ferencd@0:     JSON value can be requested. Note that no type conversions are made and a
ferencd@0:     `nullptr` is returned if the value and the requested pointer type does not
ferencd@0:     match.,get_ptr}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     template<typename PointerType, typename std::enable_if<
ferencd@0:                  std::is_pointer<PointerType>::value, int>::type = 0>
ferencd@0:     auto get_ptr() noexcept -> decltype(std::declval<basic_json_t&>().get_impl_ptr(std::declval<PointerType>()))
ferencd@0:     {
ferencd@0:         // delegate the call to get_impl_ptr<>()
ferencd@0:         return get_impl_ptr(static_cast<PointerType>(nullptr));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief get a pointer value (implicit)
ferencd@0:     @copydoc get_ptr()
ferencd@0:     */
ferencd@0:     template<typename PointerType, typename std::enable_if<
ferencd@0:                  std::is_pointer<PointerType>::value and
ferencd@0:                  std::is_const<typename std::remove_pointer<PointerType>::type>::value, int>::type = 0>
ferencd@0:     constexpr auto get_ptr() const noexcept -> decltype(std::declval<const basic_json_t&>().get_impl_ptr(std::declval<PointerType>()))
ferencd@0:     {
ferencd@0:         // delegate the call to get_impl_ptr<>() const
ferencd@0:         return get_impl_ptr(static_cast<PointerType>(nullptr));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief get a pointer value (explicit)
ferencd@0: 
ferencd@0:     Explicit pointer access to the internally stored JSON value. No copies are
ferencd@0:     made.
ferencd@0: 
ferencd@0:     @warning The pointer becomes invalid if the underlying JSON object
ferencd@0:     changes.
ferencd@0: 
ferencd@0:     @tparam PointerType pointer type; must be a pointer to @ref array_t, @ref
ferencd@0:     object_t, @ref string_t, @ref boolean_t, @ref number_integer_t,
ferencd@0:     @ref number_unsigned_t, or @ref number_float_t.
ferencd@0: 
ferencd@0:     @return pointer to the internally stored JSON value if the requested
ferencd@0:     pointer type @a PointerType fits to the JSON value; `nullptr` otherwise
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @liveexample{The example below shows how pointers to internal values of a
ferencd@0:     JSON value can be requested. Note that no type conversions are made and a
ferencd@0:     `nullptr` is returned if the value and the requested pointer type does not
ferencd@0:     match.,get__PointerType}
ferencd@0: 
ferencd@0:     @sa @ref get_ptr() for explicit pointer-member access
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     template<typename PointerType, typename std::enable_if<
ferencd@0:                  std::is_pointer<PointerType>::value, int>::type = 0>
ferencd@0:     auto get() noexcept -> decltype(std::declval<basic_json_t&>().template get_ptr<PointerType>())
ferencd@0:     {
ferencd@0:         // delegate the call to get_ptr
ferencd@0:         return get_ptr<PointerType>();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief get a pointer value (explicit)
ferencd@0:     @copydoc get()
ferencd@0:     */
ferencd@0:     template<typename PointerType, typename std::enable_if<
ferencd@0:                  std::is_pointer<PointerType>::value, int>::type = 0>
ferencd@0:     constexpr auto get() const noexcept -> decltype(std::declval<const basic_json_t&>().template get_ptr<PointerType>())
ferencd@0:     {
ferencd@0:         // delegate the call to get_ptr
ferencd@0:         return get_ptr<PointerType>();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief get a reference value (implicit)
ferencd@0: 
ferencd@0:     Implicit reference access to the internally stored JSON value. No copies
ferencd@0:     are made.
ferencd@0: 
ferencd@0:     @warning Writing data to the referee of the result yields an undefined
ferencd@0:     state.
ferencd@0: 
ferencd@0:     @tparam ReferenceType reference type; must be a reference to @ref array_t,
ferencd@0:     @ref object_t, @ref string_t, @ref boolean_t, @ref number_integer_t, or
ferencd@0:     @ref number_float_t. Enforced by static assertion.
ferencd@0: 
ferencd@0:     @return reference to the internally stored JSON value if the requested
ferencd@0:     reference type @a ReferenceType fits to the JSON value; throws
ferencd@0:     type_error.303 otherwise
ferencd@0: 
ferencd@0:     @throw type_error.303 in case passed type @a ReferenceType is incompatible
ferencd@0:     with the stored JSON value; see example below
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @liveexample{The example shows several calls to `get_ref()`.,get_ref}
ferencd@0: 
ferencd@0:     @since version 1.1.0
ferencd@0:     */
ferencd@0:     template<typename ReferenceType, typename std::enable_if<
ferencd@0:                  std::is_reference<ReferenceType>::value, int>::type = 0>
ferencd@0:     ReferenceType get_ref()
ferencd@0:     {
ferencd@0:         // delegate call to get_ref_impl
ferencd@0:         return get_ref_impl<ReferenceType>(*this);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief get a reference value (implicit)
ferencd@0:     @copydoc get_ref()
ferencd@0:     */
ferencd@0:     template<typename ReferenceType, typename std::enable_if<
ferencd@0:                  std::is_reference<ReferenceType>::value and
ferencd@0:                  std::is_const<typename std::remove_reference<ReferenceType>::type>::value, int>::type = 0>
ferencd@0:     ReferenceType get_ref() const
ferencd@0:     {
ferencd@0:         // delegate call to get_ref_impl
ferencd@0:         return get_ref_impl<ReferenceType>(*this);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief get a value (implicit)
ferencd@0: 
ferencd@0:     Implicit type conversion between the JSON value and a compatible value.
ferencd@0:     The call is realized by calling @ref get() const.
ferencd@0: 
ferencd@0:     @tparam ValueType non-pointer type compatible to the JSON value, for
ferencd@0:     instance `int` for JSON integer numbers, `bool` for JSON booleans, or
ferencd@0:     `std::vector` types for JSON arrays. The character type of @ref string_t
ferencd@0:     as well as an initializer list of this type is excluded to avoid
ferencd@0:     ambiguities as these types implicitly convert to `std::string`.
ferencd@0: 
ferencd@0:     @return copy of the JSON value, converted to type @a ValueType
ferencd@0: 
ferencd@0:     @throw type_error.302 in case passed type @a ValueType is incompatible
ferencd@0:     to the JSON value type (e.g., the JSON value is of type boolean, but a
ferencd@0:     string is requested); see example below
ferencd@0: 
ferencd@0:     @complexity Linear in the size of the JSON value.
ferencd@0: 
ferencd@0:     @liveexample{The example below shows several conversions from JSON values
ferencd@0:     to other types. There a few things to note: (1) Floating-point numbers can
ferencd@0:     be converted to integers\, (2) A JSON array can be converted to a standard
ferencd@0:     `std::vector<short>`\, (3) A JSON object can be converted to C++
ferencd@0:     associative containers such as `std::unordered_map<std::string\,
ferencd@0:     json>`.,operator__ValueType}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     template < typename ValueType, typename std::enable_if <
ferencd@0:                    not std::is_pointer<ValueType>::value and
ferencd@0:                    not std::is_same<ValueType, detail::json_ref<basic_json>>::value and
ferencd@0:                    not std::is_same<ValueType, typename string_t::value_type>::value and
ferencd@0:                    not detail::is_basic_json<ValueType>::value
ferencd@0: 
ferencd@0: #ifndef _MSC_VER  // fix for issue #167 operator<< ambiguity under VS2015
ferencd@0:                    and not std::is_same<ValueType, std::initializer_list<typename string_t::value_type>>::value
ferencd@0: #if defined(JSON_HAS_CPP_17) && (defined(__GNUC__) || (defined(_MSC_VER) and _MSC_VER <= 1914))
ferencd@0:                    and not std::is_same<ValueType, typename std::string_view>::value
ferencd@0: #endif
ferencd@0: #endif
ferencd@0:                    and detail::is_detected<detail::get_template_function, const basic_json_t&, ValueType>::value
ferencd@0:                    , int >::type = 0 >
ferencd@0:     operator ValueType() const
ferencd@0:     {
ferencd@0:         // delegate the call to get<>() const
ferencd@0:         return get<ValueType>();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// @}
ferencd@0: 
ferencd@0: 
ferencd@0:     ////////////////////
ferencd@0:     // element access //
ferencd@0:     ////////////////////
ferencd@0: 
ferencd@0:     /// @name element access
ferencd@0:     /// Access to the JSON value.
ferencd@0:     /// @{
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief access specified array element with bounds checking
ferencd@0: 
ferencd@0:     Returns a reference to the element at specified location @a idx, with
ferencd@0:     bounds checking.
ferencd@0: 
ferencd@0:     @param[in] idx  index of the element to access
ferencd@0: 
ferencd@0:     @return reference to the element at index @a idx
ferencd@0: 
ferencd@0:     @throw type_error.304 if the JSON value is not an array; in this case,
ferencd@0:     calling `at` with an index makes no sense. See example below.
ferencd@0:     @throw out_of_range.401 if the index @a idx is out of range of the array;
ferencd@0:     that is, `idx >= size()`. See example below.
ferencd@0: 
ferencd@0:     @exceptionsafety Strong guarantee: if an exception is thrown, there are no
ferencd@0:     changes in the JSON value.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0: 
ferencd@0:     @liveexample{The example below shows how array elements can be read and
ferencd@0:     written using `at()`. It also demonstrates the different exceptions that
ferencd@0:     can be thrown.,at__size_type}
ferencd@0:     */
ferencd@0:     reference at(size_type idx)
ferencd@0:     {
ferencd@0:         // at only works for arrays
ferencd@0:         if (JSON_HEDLEY_LIKELY(is_array()))
ferencd@0:         {
ferencd@0:             JSON_TRY
ferencd@0:             {
ferencd@0:                 return m_value.array->at(idx);
ferencd@0:             }
ferencd@0:             JSON_CATCH (std::out_of_range&)
ferencd@0:             {
ferencd@0:                 // create better exception explanation
ferencd@0:                 JSON_THROW(out_of_range::create(401, "array index " + std::to_string(idx) + " is out of range"));
ferencd@0:             }
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             JSON_THROW(type_error::create(304, "cannot use at() with " + std::string(type_name())));
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief access specified array element with bounds checking
ferencd@0: 
ferencd@0:     Returns a const reference to the element at specified location @a idx,
ferencd@0:     with bounds checking.
ferencd@0: 
ferencd@0:     @param[in] idx  index of the element to access
ferencd@0: 
ferencd@0:     @return const reference to the element at index @a idx
ferencd@0: 
ferencd@0:     @throw type_error.304 if the JSON value is not an array; in this case,
ferencd@0:     calling `at` with an index makes no sense. See example below.
ferencd@0:     @throw out_of_range.401 if the index @a idx is out of range of the array;
ferencd@0:     that is, `idx >= size()`. See example below.
ferencd@0: 
ferencd@0:     @exceptionsafety Strong guarantee: if an exception is thrown, there are no
ferencd@0:     changes in the JSON value.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0: 
ferencd@0:     @liveexample{The example below shows how array elements can be read using
ferencd@0:     `at()`. It also demonstrates the different exceptions that can be thrown.,
ferencd@0:     at__size_type_const}
ferencd@0:     */
ferencd@0:     const_reference at(size_type idx) const
ferencd@0:     {
ferencd@0:         // at only works for arrays
ferencd@0:         if (JSON_HEDLEY_LIKELY(is_array()))
ferencd@0:         {
ferencd@0:             JSON_TRY
ferencd@0:             {
ferencd@0:                 return m_value.array->at(idx);
ferencd@0:             }
ferencd@0:             JSON_CATCH (std::out_of_range&)
ferencd@0:             {
ferencd@0:                 // create better exception explanation
ferencd@0:                 JSON_THROW(out_of_range::create(401, "array index " + std::to_string(idx) + " is out of range"));
ferencd@0:             }
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             JSON_THROW(type_error::create(304, "cannot use at() with " + std::string(type_name())));
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief access specified object element with bounds checking
ferencd@0: 
ferencd@0:     Returns a reference to the element at with specified key @a key, with
ferencd@0:     bounds checking.
ferencd@0: 
ferencd@0:     @param[in] key  key of the element to access
ferencd@0: 
ferencd@0:     @return reference to the element at key @a key
ferencd@0: 
ferencd@0:     @throw type_error.304 if the JSON value is not an object; in this case,
ferencd@0:     calling `at` with a key makes no sense. See example below.
ferencd@0:     @throw out_of_range.403 if the key @a key is is not stored in the object;
ferencd@0:     that is, `find(key) == end()`. See example below.
ferencd@0: 
ferencd@0:     @exceptionsafety Strong guarantee: if an exception is thrown, there are no
ferencd@0:     changes in the JSON value.
ferencd@0: 
ferencd@0:     @complexity Logarithmic in the size of the container.
ferencd@0: 
ferencd@0:     @sa @ref operator[](const typename object_t::key_type&) for unchecked
ferencd@0:     access by reference
ferencd@0:     @sa @ref value() for access by value with a default value
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0: 
ferencd@0:     @liveexample{The example below shows how object elements can be read and
ferencd@0:     written using `at()`. It also demonstrates the different exceptions that
ferencd@0:     can be thrown.,at__object_t_key_type}
ferencd@0:     */
ferencd@0:     reference at(const typename object_t::key_type& key)
ferencd@0:     {
ferencd@0:         // at only works for objects
ferencd@0:         if (JSON_HEDLEY_LIKELY(is_object()))
ferencd@0:         {
ferencd@0:             JSON_TRY
ferencd@0:             {
ferencd@0:                 return m_value.object->at(key);
ferencd@0:             }
ferencd@0:             JSON_CATCH (std::out_of_range&)
ferencd@0:             {
ferencd@0:                 // create better exception explanation
ferencd@0:                 JSON_THROW(out_of_range::create(403, "key '" + key + "' not found"));
ferencd@0:             }
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             JSON_THROW(type_error::create(304, "cannot use at() with " + std::string(type_name())));
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief access specified object element with bounds checking
ferencd@0: 
ferencd@0:     Returns a const reference to the element at with specified key @a key,
ferencd@0:     with bounds checking.
ferencd@0: 
ferencd@0:     @param[in] key  key of the element to access
ferencd@0: 
ferencd@0:     @return const reference to the element at key @a key
ferencd@0: 
ferencd@0:     @throw type_error.304 if the JSON value is not an object; in this case,
ferencd@0:     calling `at` with a key makes no sense. See example below.
ferencd@0:     @throw out_of_range.403 if the key @a key is is not stored in the object;
ferencd@0:     that is, `find(key) == end()`. See example below.
ferencd@0: 
ferencd@0:     @exceptionsafety Strong guarantee: if an exception is thrown, there are no
ferencd@0:     changes in the JSON value.
ferencd@0: 
ferencd@0:     @complexity Logarithmic in the size of the container.
ferencd@0: 
ferencd@0:     @sa @ref operator[](const typename object_t::key_type&) for unchecked
ferencd@0:     access by reference
ferencd@0:     @sa @ref value() for access by value with a default value
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0: 
ferencd@0:     @liveexample{The example below shows how object elements can be read using
ferencd@0:     `at()`. It also demonstrates the different exceptions that can be thrown.,
ferencd@0:     at__object_t_key_type_const}
ferencd@0:     */
ferencd@0:     const_reference at(const typename object_t::key_type& key) const
ferencd@0:     {
ferencd@0:         // at only works for objects
ferencd@0:         if (JSON_HEDLEY_LIKELY(is_object()))
ferencd@0:         {
ferencd@0:             JSON_TRY
ferencd@0:             {
ferencd@0:                 return m_value.object->at(key);
ferencd@0:             }
ferencd@0:             JSON_CATCH (std::out_of_range&)
ferencd@0:             {
ferencd@0:                 // create better exception explanation
ferencd@0:                 JSON_THROW(out_of_range::create(403, "key '" + key + "' not found"));
ferencd@0:             }
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             JSON_THROW(type_error::create(304, "cannot use at() with " + std::string(type_name())));
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief access specified array element
ferencd@0: 
ferencd@0:     Returns a reference to the element at specified location @a idx.
ferencd@0: 
ferencd@0:     @note If @a idx is beyond the range of the array (i.e., `idx >= size()`),
ferencd@0:     then the array is silently filled up with `null` values to make `idx` a
ferencd@0:     valid reference to the last stored element.
ferencd@0: 
ferencd@0:     @param[in] idx  index of the element to access
ferencd@0: 
ferencd@0:     @return reference to the element at index @a idx
ferencd@0: 
ferencd@0:     @throw type_error.305 if the JSON value is not an array or null; in that
ferencd@0:     cases, using the [] operator with an index makes no sense.
ferencd@0: 
ferencd@0:     @complexity Constant if @a idx is in the range of the array. Otherwise
ferencd@0:     linear in `idx - size()`.
ferencd@0: 
ferencd@0:     @liveexample{The example below shows how array elements can be read and
ferencd@0:     written using `[]` operator. Note the addition of `null`
ferencd@0:     values.,operatorarray__size_type}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     reference operator[](size_type idx)
ferencd@0:     {
ferencd@0:         // implicitly convert null value to an empty array
ferencd@0:         if (is_null())
ferencd@0:         {
ferencd@0:             m_type = value_t::array;
ferencd@0:             m_value.array = create<array_t>();
ferencd@0:             assert_invariant();
ferencd@0:         }
ferencd@0: 
ferencd@0:         // operator[] only works for arrays
ferencd@0:         if (JSON_HEDLEY_LIKELY(is_array()))
ferencd@0:         {
ferencd@0:             // fill up array with null values if given idx is outside range
ferencd@0:             if (idx >= m_value.array->size())
ferencd@0:             {
ferencd@0:                 m_value.array->insert(m_value.array->end(),
ferencd@0:                                       idx - m_value.array->size() + 1,
ferencd@0:                                       basic_json());
ferencd@0:             }
ferencd@0: 
ferencd@0:             return m_value.array->operator[](idx);
ferencd@0:         }
ferencd@0: 
ferencd@0:         JSON_THROW(type_error::create(305, "cannot use operator[] with a numeric argument with " + std::string(type_name())));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief access specified array element
ferencd@0: 
ferencd@0:     Returns a const reference to the element at specified location @a idx.
ferencd@0: 
ferencd@0:     @param[in] idx  index of the element to access
ferencd@0: 
ferencd@0:     @return const reference to the element at index @a idx
ferencd@0: 
ferencd@0:     @throw type_error.305 if the JSON value is not an array; in that case,
ferencd@0:     using the [] operator with an index makes no sense.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @liveexample{The example below shows how array elements can be read using
ferencd@0:     the `[]` operator.,operatorarray__size_type_const}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     const_reference operator[](size_type idx) const
ferencd@0:     {
ferencd@0:         // const operator[] only works for arrays
ferencd@0:         if (JSON_HEDLEY_LIKELY(is_array()))
ferencd@0:         {
ferencd@0:             return m_value.array->operator[](idx);
ferencd@0:         }
ferencd@0: 
ferencd@0:         JSON_THROW(type_error::create(305, "cannot use operator[] with a numeric argument with " + std::string(type_name())));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief access specified object element
ferencd@0: 
ferencd@0:     Returns a reference to the element at with specified key @a key.
ferencd@0: 
ferencd@0:     @note If @a key is not found in the object, then it is silently added to
ferencd@0:     the object and filled with a `null` value to make `key` a valid reference.
ferencd@0:     In case the value was `null` before, it is converted to an object.
ferencd@0: 
ferencd@0:     @param[in] key  key of the element to access
ferencd@0: 
ferencd@0:     @return reference to the element at key @a key
ferencd@0: 
ferencd@0:     @throw type_error.305 if the JSON value is not an object or null; in that
ferencd@0:     cases, using the [] operator with a key makes no sense.
ferencd@0: 
ferencd@0:     @complexity Logarithmic in the size of the container.
ferencd@0: 
ferencd@0:     @liveexample{The example below shows how object elements can be read and
ferencd@0:     written using the `[]` operator.,operatorarray__key_type}
ferencd@0: 
ferencd@0:     @sa @ref at(const typename object_t::key_type&) for access by reference
ferencd@0:     with range checking
ferencd@0:     @sa @ref value() for access by value with a default value
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     reference operator[](const typename object_t::key_type& key)
ferencd@0:     {
ferencd@0:         // implicitly convert null value to an empty object
ferencd@0:         if (is_null())
ferencd@0:         {
ferencd@0:             m_type = value_t::object;
ferencd@0:             m_value.object = create<object_t>();
ferencd@0:             assert_invariant();
ferencd@0:         }
ferencd@0: 
ferencd@0:         // operator[] only works for objects
ferencd@0:         if (JSON_HEDLEY_LIKELY(is_object()))
ferencd@0:         {
ferencd@0:             return m_value.object->operator[](key);
ferencd@0:         }
ferencd@0: 
ferencd@0:         JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name())));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief read-only access specified object element
ferencd@0: 
ferencd@0:     Returns a const reference to the element at with specified key @a key. No
ferencd@0:     bounds checking is performed.
ferencd@0: 
ferencd@0:     @warning If the element with key @a key does not exist, the behavior is
ferencd@0:     undefined.
ferencd@0: 
ferencd@0:     @param[in] key  key of the element to access
ferencd@0: 
ferencd@0:     @return const reference to the element at key @a key
ferencd@0: 
ferencd@0:     @pre The element with key @a key must exist. **This precondition is
ferencd@0:          enforced with an assertion.**
ferencd@0: 
ferencd@0:     @throw type_error.305 if the JSON value is not an object; in that case,
ferencd@0:     using the [] operator with a key makes no sense.
ferencd@0: 
ferencd@0:     @complexity Logarithmic in the size of the container.
ferencd@0: 
ferencd@0:     @liveexample{The example below shows how object elements can be read using
ferencd@0:     the `[]` operator.,operatorarray__key_type_const}
ferencd@0: 
ferencd@0:     @sa @ref at(const typename object_t::key_type&) for access by reference
ferencd@0:     with range checking
ferencd@0:     @sa @ref value() for access by value with a default value
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     const_reference operator[](const typename object_t::key_type& key) const
ferencd@0:     {
ferencd@0:         // const operator[] only works for objects
ferencd@0:         if (JSON_HEDLEY_LIKELY(is_object()))
ferencd@0:         {
ferencd@0:             assert(m_value.object->find(key) != m_value.object->end());
ferencd@0:             return m_value.object->find(key)->second;
ferencd@0:         }
ferencd@0: 
ferencd@0:         JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name())));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief access specified object element
ferencd@0: 
ferencd@0:     Returns a reference to the element at with specified key @a key.
ferencd@0: 
ferencd@0:     @note If @a key is not found in the object, then it is silently added to
ferencd@0:     the object and filled with a `null` value to make `key` a valid reference.
ferencd@0:     In case the value was `null` before, it is converted to an object.
ferencd@0: 
ferencd@0:     @param[in] key  key of the element to access
ferencd@0: 
ferencd@0:     @return reference to the element at key @a key
ferencd@0: 
ferencd@0:     @throw type_error.305 if the JSON value is not an object or null; in that
ferencd@0:     cases, using the [] operator with a key makes no sense.
ferencd@0: 
ferencd@0:     @complexity Logarithmic in the size of the container.
ferencd@0: 
ferencd@0:     @liveexample{The example below shows how object elements can be read and
ferencd@0:     written using the `[]` operator.,operatorarray__key_type}
ferencd@0: 
ferencd@0:     @sa @ref at(const typename object_t::key_type&) for access by reference
ferencd@0:     with range checking
ferencd@0:     @sa @ref value() for access by value with a default value
ferencd@0: 
ferencd@0:     @since version 1.1.0
ferencd@0:     */
ferencd@0:     template<typename T>
ferencd@0:     JSON_HEDLEY_NON_NULL(2)
ferencd@0:     reference operator[](T* key)
ferencd@0:     {
ferencd@0:         // implicitly convert null to object
ferencd@0:         if (is_null())
ferencd@0:         {
ferencd@0:             m_type = value_t::object;
ferencd@0:             m_value = value_t::object;
ferencd@0:             assert_invariant();
ferencd@0:         }
ferencd@0: 
ferencd@0:         // at only works for objects
ferencd@0:         if (JSON_HEDLEY_LIKELY(is_object()))
ferencd@0:         {
ferencd@0:             return m_value.object->operator[](key);
ferencd@0:         }
ferencd@0: 
ferencd@0:         JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name())));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief read-only access specified object element
ferencd@0: 
ferencd@0:     Returns a const reference to the element at with specified key @a key. No
ferencd@0:     bounds checking is performed.
ferencd@0: 
ferencd@0:     @warning If the element with key @a key does not exist, the behavior is
ferencd@0:     undefined.
ferencd@0: 
ferencd@0:     @param[in] key  key of the element to access
ferencd@0: 
ferencd@0:     @return const reference to the element at key @a key
ferencd@0: 
ferencd@0:     @pre The element with key @a key must exist. **This precondition is
ferencd@0:          enforced with an assertion.**
ferencd@0: 
ferencd@0:     @throw type_error.305 if the JSON value is not an object; in that case,
ferencd@0:     using the [] operator with a key makes no sense.
ferencd@0: 
ferencd@0:     @complexity Logarithmic in the size of the container.
ferencd@0: 
ferencd@0:     @liveexample{The example below shows how object elements can be read using
ferencd@0:     the `[]` operator.,operatorarray__key_type_const}
ferencd@0: 
ferencd@0:     @sa @ref at(const typename object_t::key_type&) for access by reference
ferencd@0:     with range checking
ferencd@0:     @sa @ref value() for access by value with a default value
ferencd@0: 
ferencd@0:     @since version 1.1.0
ferencd@0:     */
ferencd@0:     template<typename T>
ferencd@0:     JSON_HEDLEY_NON_NULL(2)
ferencd@0:     const_reference operator[](T* key) const
ferencd@0:     {
ferencd@0:         // at only works for objects
ferencd@0:         if (JSON_HEDLEY_LIKELY(is_object()))
ferencd@0:         {
ferencd@0:             assert(m_value.object->find(key) != m_value.object->end());
ferencd@0:             return m_value.object->find(key)->second;
ferencd@0:         }
ferencd@0: 
ferencd@0:         JSON_THROW(type_error::create(305, "cannot use operator[] with a string argument with " + std::string(type_name())));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief access specified object element with default value
ferencd@0: 
ferencd@0:     Returns either a copy of an object's element at the specified key @a key
ferencd@0:     or a given default value if no element with key @a key exists.
ferencd@0: 
ferencd@0:     The function is basically equivalent to executing
ferencd@0:     @code {.cpp}
ferencd@0:     try {
ferencd@0:         return at(key);
ferencd@0:     } catch(out_of_range) {
ferencd@0:         return default_value;
ferencd@0:     }
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     @note Unlike @ref at(const typename object_t::key_type&), this function
ferencd@0:     does not throw if the given key @a key was not found.
ferencd@0: 
ferencd@0:     @note Unlike @ref operator[](const typename object_t::key_type& key), this
ferencd@0:     function does not implicitly add an element to the position defined by @a
ferencd@0:     key. This function is furthermore also applicable to const objects.
ferencd@0: 
ferencd@0:     @param[in] key  key of the element to access
ferencd@0:     @param[in] default_value  the value to return if @a key is not found
ferencd@0: 
ferencd@0:     @tparam ValueType type compatible to JSON values, for instance `int` for
ferencd@0:     JSON integer numbers, `bool` for JSON booleans, or `std::vector` types for
ferencd@0:     JSON arrays. Note the type of the expected value at @a key and the default
ferencd@0:     value @a default_value must be compatible.
ferencd@0: 
ferencd@0:     @return copy of the element at key @a key or @a default_value if @a key
ferencd@0:     is not found
ferencd@0: 
ferencd@0:     @throw type_error.302 if @a default_value does not match the type of the
ferencd@0:     value at @a key
ferencd@0:     @throw type_error.306 if the JSON value is not an object; in that case,
ferencd@0:     using `value()` with a key makes no sense.
ferencd@0: 
ferencd@0:     @complexity Logarithmic in the size of the container.
ferencd@0: 
ferencd@0:     @liveexample{The example below shows how object elements can be queried
ferencd@0:     with a default value.,basic_json__value}
ferencd@0: 
ferencd@0:     @sa @ref at(const typename object_t::key_type&) for access by reference
ferencd@0:     with range checking
ferencd@0:     @sa @ref operator[](const typename object_t::key_type&) for unchecked
ferencd@0:     access by reference
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     template<class ValueType, typename std::enable_if<
ferencd@0:                  std::is_convertible<basic_json_t, ValueType>::value, int>::type = 0>
ferencd@0:     ValueType value(const typename object_t::key_type& key, const ValueType& default_value) const
ferencd@0:     {
ferencd@0:         // at only works for objects
ferencd@0:         if (JSON_HEDLEY_LIKELY(is_object()))
ferencd@0:         {
ferencd@0:             // if key is found, return value and given default value otherwise
ferencd@0:             const auto it = find(key);
ferencd@0:             if (it != end())
ferencd@0:             {
ferencd@0:                 return *it;
ferencd@0:             }
ferencd@0: 
ferencd@0:             return default_value;
ferencd@0:         }
ferencd@0: 
ferencd@0:         JSON_THROW(type_error::create(306, "cannot use value() with " + std::string(type_name())));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief overload for a default value of type const char*
ferencd@0:     @copydoc basic_json::value(const typename object_t::key_type&, const ValueType&) const
ferencd@0:     */
ferencd@0:     string_t value(const typename object_t::key_type& key, const char* default_value) const
ferencd@0:     {
ferencd@0:         return value(key, string_t(default_value));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief access specified object element via JSON Pointer with default value
ferencd@0: 
ferencd@0:     Returns either a copy of an object's element at the specified key @a key
ferencd@0:     or a given default value if no element with key @a key exists.
ferencd@0: 
ferencd@0:     The function is basically equivalent to executing
ferencd@0:     @code {.cpp}
ferencd@0:     try {
ferencd@0:         return at(ptr);
ferencd@0:     } catch(out_of_range) {
ferencd@0:         return default_value;
ferencd@0:     }
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     @note Unlike @ref at(const json_pointer&), this function does not throw
ferencd@0:     if the given key @a key was not found.
ferencd@0: 
ferencd@0:     @param[in] ptr  a JSON pointer to the element to access
ferencd@0:     @param[in] default_value  the value to return if @a ptr found no value
ferencd@0: 
ferencd@0:     @tparam ValueType type compatible to JSON values, for instance `int` for
ferencd@0:     JSON integer numbers, `bool` for JSON booleans, or `std::vector` types for
ferencd@0:     JSON arrays. Note the type of the expected value at @a key and the default
ferencd@0:     value @a default_value must be compatible.
ferencd@0: 
ferencd@0:     @return copy of the element at key @a key or @a default_value if @a key
ferencd@0:     is not found
ferencd@0: 
ferencd@0:     @throw type_error.302 if @a default_value does not match the type of the
ferencd@0:     value at @a ptr
ferencd@0:     @throw type_error.306 if the JSON value is not an object; in that case,
ferencd@0:     using `value()` with a key makes no sense.
ferencd@0: 
ferencd@0:     @complexity Logarithmic in the size of the container.
ferencd@0: 
ferencd@0:     @liveexample{The example below shows how object elements can be queried
ferencd@0:     with a default value.,basic_json__value_ptr}
ferencd@0: 
ferencd@0:     @sa @ref operator[](const json_pointer&) for unchecked access by reference
ferencd@0: 
ferencd@0:     @since version 2.0.2
ferencd@0:     */
ferencd@0:     template<class ValueType, typename std::enable_if<
ferencd@0:                  std::is_convertible<basic_json_t, ValueType>::value, int>::type = 0>
ferencd@0:     ValueType value(const json_pointer& ptr, const ValueType& default_value) const
ferencd@0:     {
ferencd@0:         // at only works for objects
ferencd@0:         if (JSON_HEDLEY_LIKELY(is_object()))
ferencd@0:         {
ferencd@0:             // if pointer resolves a value, return it or use default value
ferencd@0:             JSON_TRY
ferencd@0:             {
ferencd@0:                 return ptr.get_checked(this);
ferencd@0:             }
ferencd@0:             JSON_INTERNAL_CATCH (out_of_range&)
ferencd@0:             {
ferencd@0:                 return default_value;
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         JSON_THROW(type_error::create(306, "cannot use value() with " + std::string(type_name())));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief overload for a default value of type const char*
ferencd@0:     @copydoc basic_json::value(const json_pointer&, ValueType) const
ferencd@0:     */
ferencd@0:     JSON_HEDLEY_NON_NULL(3)
ferencd@0:     string_t value(const json_pointer& ptr, const char* default_value) const
ferencd@0:     {
ferencd@0:         return value(ptr, string_t(default_value));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief access the first element
ferencd@0: 
ferencd@0:     Returns a reference to the first element in the container. For a JSON
ferencd@0:     container `c`, the expression `c.front()` is equivalent to `*c.begin()`.
ferencd@0: 
ferencd@0:     @return In case of a structured type (array or object), a reference to the
ferencd@0:     first element is returned. In case of number, string, or boolean values, a
ferencd@0:     reference to the value is returned.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @pre The JSON value must not be `null` (would throw `std::out_of_range`)
ferencd@0:     or an empty array or object (undefined behavior, **guarded by
ferencd@0:     assertions**).
ferencd@0:     @post The JSON value remains unchanged.
ferencd@0: 
ferencd@0:     @throw invalid_iterator.214 when called on `null` value
ferencd@0: 
ferencd@0:     @liveexample{The following code shows an example for `front()`.,front}
ferencd@0: 
ferencd@0:     @sa @ref back() -- access the last element
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     reference front()
ferencd@0:     {
ferencd@0:         return *begin();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @copydoc basic_json::front()
ferencd@0:     */
ferencd@0:     const_reference front() const
ferencd@0:     {
ferencd@0:         return *cbegin();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief access the last element
ferencd@0: 
ferencd@0:     Returns a reference to the last element in the container. For a JSON
ferencd@0:     container `c`, the expression `c.back()` is equivalent to
ferencd@0:     @code {.cpp}
ferencd@0:     auto tmp = c.end();
ferencd@0:     --tmp;
ferencd@0:     return *tmp;
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     @return In case of a structured type (array or object), a reference to the
ferencd@0:     last element is returned. In case of number, string, or boolean values, a
ferencd@0:     reference to the value is returned.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @pre The JSON value must not be `null` (would throw `std::out_of_range`)
ferencd@0:     or an empty array or object (undefined behavior, **guarded by
ferencd@0:     assertions**).
ferencd@0:     @post The JSON value remains unchanged.
ferencd@0: 
ferencd@0:     @throw invalid_iterator.214 when called on a `null` value. See example
ferencd@0:     below.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows an example for `back()`.,back}
ferencd@0: 
ferencd@0:     @sa @ref front() -- access the first element
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     reference back()
ferencd@0:     {
ferencd@0:         auto tmp = end();
ferencd@0:         --tmp;
ferencd@0:         return *tmp;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @copydoc basic_json::back()
ferencd@0:     */
ferencd@0:     const_reference back() const
ferencd@0:     {
ferencd@0:         auto tmp = cend();
ferencd@0:         --tmp;
ferencd@0:         return *tmp;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief remove element given an iterator
ferencd@0: 
ferencd@0:     Removes the element specified by iterator @a pos. The iterator @a pos must
ferencd@0:     be valid and dereferenceable. Thus the `end()` iterator (which is valid,
ferencd@0:     but is not dereferenceable) cannot be used as a value for @a pos.
ferencd@0: 
ferencd@0:     If called on a primitive type other than `null`, the resulting JSON value
ferencd@0:     will be `null`.
ferencd@0: 
ferencd@0:     @param[in] pos iterator to the element to remove
ferencd@0:     @return Iterator following the last removed element. If the iterator @a
ferencd@0:     pos refers to the last element, the `end()` iterator is returned.
ferencd@0: 
ferencd@0:     @tparam IteratorType an @ref iterator or @ref const_iterator
ferencd@0: 
ferencd@0:     @post Invalidates iterators and references at or after the point of the
ferencd@0:     erase, including the `end()` iterator.
ferencd@0: 
ferencd@0:     @throw type_error.307 if called on a `null` value; example: `"cannot use
ferencd@0:     erase() with null"`
ferencd@0:     @throw invalid_iterator.202 if called on an iterator which does not belong
ferencd@0:     to the current JSON value; example: `"iterator does not fit current
ferencd@0:     value"`
ferencd@0:     @throw invalid_iterator.205 if called on a primitive type with invalid
ferencd@0:     iterator (i.e., any iterator which is not `begin()`); example: `"iterator
ferencd@0:     out of range"`
ferencd@0: 
ferencd@0:     @complexity The complexity depends on the type:
ferencd@0:     - objects: amortized constant
ferencd@0:     - arrays: linear in distance between @a pos and the end of the container
ferencd@0:     - strings: linear in the length of the string
ferencd@0:     - other types: constant
ferencd@0: 
ferencd@0:     @liveexample{The example shows the result of `erase()` for different JSON
ferencd@0:     types.,erase__IteratorType}
ferencd@0: 
ferencd@0:     @sa @ref erase(IteratorType, IteratorType) -- removes the elements in
ferencd@0:     the given range
ferencd@0:     @sa @ref erase(const typename object_t::key_type&) -- removes the element
ferencd@0:     from an object at the given key
ferencd@0:     @sa @ref erase(const size_type) -- removes the element from an array at
ferencd@0:     the given index
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     template<class IteratorType, typename std::enable_if<
ferencd@0:                  std::is_same<IteratorType, typename basic_json_t::iterator>::value or
ferencd@0:                  std::is_same<IteratorType, typename basic_json_t::const_iterator>::value, int>::type
ferencd@0:              = 0>
ferencd@0:     IteratorType erase(IteratorType pos)
ferencd@0:     {
ferencd@0:         // make sure iterator fits the current value
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(this != pos.m_object))
ferencd@0:         {
ferencd@0:             JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value"));
ferencd@0:         }
ferencd@0: 
ferencd@0:         IteratorType result = end();
ferencd@0: 
ferencd@0:         switch (m_type)
ferencd@0:         {
ferencd@0:             case value_t::boolean:
ferencd@0:             case value_t::number_float:
ferencd@0:             case value_t::number_integer:
ferencd@0:             case value_t::number_unsigned:
ferencd@0:             case value_t::string:
ferencd@0:             {
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(not pos.m_it.primitive_iterator.is_begin()))
ferencd@0:                 {
ferencd@0:                     JSON_THROW(invalid_iterator::create(205, "iterator out of range"));
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 if (is_string())
ferencd@0:                 {
ferencd@0:                     AllocatorType<string_t> alloc;
ferencd@0:                     std::allocator_traits<decltype(alloc)>::destroy(alloc, m_value.string);
ferencd@0:                     std::allocator_traits<decltype(alloc)>::deallocate(alloc, m_value.string, 1);
ferencd@0:                     m_value.string = nullptr;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 m_type = value_t::null;
ferencd@0:                 assert_invariant();
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::object:
ferencd@0:             {
ferencd@0:                 result.m_it.object_iterator = m_value.object->erase(pos.m_it.object_iterator);
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 result.m_it.array_iterator = m_value.array->erase(pos.m_it.array_iterator);
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:                 JSON_THROW(type_error::create(307, "cannot use erase() with " + std::string(type_name())));
ferencd@0:         }
ferencd@0: 
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief remove elements given an iterator range
ferencd@0: 
ferencd@0:     Removes the element specified by the range `[first; last)`. The iterator
ferencd@0:     @a first does not need to be dereferenceable if `first == last`: erasing
ferencd@0:     an empty range is a no-op.
ferencd@0: 
ferencd@0:     If called on a primitive type other than `null`, the resulting JSON value
ferencd@0:     will be `null`.
ferencd@0: 
ferencd@0:     @param[in] first iterator to the beginning of the range to remove
ferencd@0:     @param[in] last iterator past the end of the range to remove
ferencd@0:     @return Iterator following the last removed element. If the iterator @a
ferencd@0:     second refers to the last element, the `end()` iterator is returned.
ferencd@0: 
ferencd@0:     @tparam IteratorType an @ref iterator or @ref const_iterator
ferencd@0: 
ferencd@0:     @post Invalidates iterators and references at or after the point of the
ferencd@0:     erase, including the `end()` iterator.
ferencd@0: 
ferencd@0:     @throw type_error.307 if called on a `null` value; example: `"cannot use
ferencd@0:     erase() with null"`
ferencd@0:     @throw invalid_iterator.203 if called on iterators which does not belong
ferencd@0:     to the current JSON value; example: `"iterators do not fit current value"`
ferencd@0:     @throw invalid_iterator.204 if called on a primitive type with invalid
ferencd@0:     iterators (i.e., if `first != begin()` and `last != end()`); example:
ferencd@0:     `"iterators out of range"`
ferencd@0: 
ferencd@0:     @complexity The complexity depends on the type:
ferencd@0:     - objects: `log(size()) + std::distance(first, last)`
ferencd@0:     - arrays: linear in the distance between @a first and @a last, plus linear
ferencd@0:       in the distance between @a last and end of the container
ferencd@0:     - strings: linear in the length of the string
ferencd@0:     - other types: constant
ferencd@0: 
ferencd@0:     @liveexample{The example shows the result of `erase()` for different JSON
ferencd@0:     types.,erase__IteratorType_IteratorType}
ferencd@0: 
ferencd@0:     @sa @ref erase(IteratorType) -- removes the element at a given position
ferencd@0:     @sa @ref erase(const typename object_t::key_type&) -- removes the element
ferencd@0:     from an object at the given key
ferencd@0:     @sa @ref erase(const size_type) -- removes the element from an array at
ferencd@0:     the given index
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     template<class IteratorType, typename std::enable_if<
ferencd@0:                  std::is_same<IteratorType, typename basic_json_t::iterator>::value or
ferencd@0:                  std::is_same<IteratorType, typename basic_json_t::const_iterator>::value, int>::type
ferencd@0:              = 0>
ferencd@0:     IteratorType erase(IteratorType first, IteratorType last)
ferencd@0:     {
ferencd@0:         // make sure iterator fits the current value
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(this != first.m_object or this != last.m_object))
ferencd@0:         {
ferencd@0:             JSON_THROW(invalid_iterator::create(203, "iterators do not fit current value"));
ferencd@0:         }
ferencd@0: 
ferencd@0:         IteratorType result = end();
ferencd@0: 
ferencd@0:         switch (m_type)
ferencd@0:         {
ferencd@0:             case value_t::boolean:
ferencd@0:             case value_t::number_float:
ferencd@0:             case value_t::number_integer:
ferencd@0:             case value_t::number_unsigned:
ferencd@0:             case value_t::string:
ferencd@0:             {
ferencd@0:                 if (JSON_HEDLEY_LIKELY(not first.m_it.primitive_iterator.is_begin()
ferencd@0:                                        or not last.m_it.primitive_iterator.is_end()))
ferencd@0:                 {
ferencd@0:                     JSON_THROW(invalid_iterator::create(204, "iterators out of range"));
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 if (is_string())
ferencd@0:                 {
ferencd@0:                     AllocatorType<string_t> alloc;
ferencd@0:                     std::allocator_traits<decltype(alloc)>::destroy(alloc, m_value.string);
ferencd@0:                     std::allocator_traits<decltype(alloc)>::deallocate(alloc, m_value.string, 1);
ferencd@0:                     m_value.string = nullptr;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 m_type = value_t::null;
ferencd@0:                 assert_invariant();
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::object:
ferencd@0:             {
ferencd@0:                 result.m_it.object_iterator = m_value.object->erase(first.m_it.object_iterator,
ferencd@0:                                               last.m_it.object_iterator);
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 result.m_it.array_iterator = m_value.array->erase(first.m_it.array_iterator,
ferencd@0:                                              last.m_it.array_iterator);
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:                 JSON_THROW(type_error::create(307, "cannot use erase() with " + std::string(type_name())));
ferencd@0:         }
ferencd@0: 
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief remove element from a JSON object given a key
ferencd@0: 
ferencd@0:     Removes elements from a JSON object with the key value @a key.
ferencd@0: 
ferencd@0:     @param[in] key value of the elements to remove
ferencd@0: 
ferencd@0:     @return Number of elements removed. If @a ObjectType is the default
ferencd@0:     `std::map` type, the return value will always be `0` (@a key was not
ferencd@0:     found) or `1` (@a key was found).
ferencd@0: 
ferencd@0:     @post References and iterators to the erased elements are invalidated.
ferencd@0:     Other references and iterators are not affected.
ferencd@0: 
ferencd@0:     @throw type_error.307 when called on a type other than JSON object;
ferencd@0:     example: `"cannot use erase() with null"`
ferencd@0: 
ferencd@0:     @complexity `log(size()) + count(key)`
ferencd@0: 
ferencd@0:     @liveexample{The example shows the effect of `erase()`.,erase__key_type}
ferencd@0: 
ferencd@0:     @sa @ref erase(IteratorType) -- removes the element at a given position
ferencd@0:     @sa @ref erase(IteratorType, IteratorType) -- removes the elements in
ferencd@0:     the given range
ferencd@0:     @sa @ref erase(const size_type) -- removes the element from an array at
ferencd@0:     the given index
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     size_type erase(const typename object_t::key_type& key)
ferencd@0:     {
ferencd@0:         // this erase only works for objects
ferencd@0:         if (JSON_HEDLEY_LIKELY(is_object()))
ferencd@0:         {
ferencd@0:             return m_value.object->erase(key);
ferencd@0:         }
ferencd@0: 
ferencd@0:         JSON_THROW(type_error::create(307, "cannot use erase() with " + std::string(type_name())));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief remove element from a JSON array given an index
ferencd@0: 
ferencd@0:     Removes element from a JSON array at the index @a idx.
ferencd@0: 
ferencd@0:     @param[in] idx index of the element to remove
ferencd@0: 
ferencd@0:     @throw type_error.307 when called on a type other than JSON object;
ferencd@0:     example: `"cannot use erase() with null"`
ferencd@0:     @throw out_of_range.401 when `idx >= size()`; example: `"array index 17
ferencd@0:     is out of range"`
ferencd@0: 
ferencd@0:     @complexity Linear in distance between @a idx and the end of the container.
ferencd@0: 
ferencd@0:     @liveexample{The example shows the effect of `erase()`.,erase__size_type}
ferencd@0: 
ferencd@0:     @sa @ref erase(IteratorType) -- removes the element at a given position
ferencd@0:     @sa @ref erase(IteratorType, IteratorType) -- removes the elements in
ferencd@0:     the given range
ferencd@0:     @sa @ref erase(const typename object_t::key_type&) -- removes the element
ferencd@0:     from an object at the given key
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     void erase(const size_type idx)
ferencd@0:     {
ferencd@0:         // this erase only works for arrays
ferencd@0:         if (JSON_HEDLEY_LIKELY(is_array()))
ferencd@0:         {
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(idx >= size()))
ferencd@0:             {
ferencd@0:                 JSON_THROW(out_of_range::create(401, "array index " + std::to_string(idx) + " is out of range"));
ferencd@0:             }
ferencd@0: 
ferencd@0:             m_value.array->erase(m_value.array->begin() + static_cast<difference_type>(idx));
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             JSON_THROW(type_error::create(307, "cannot use erase() with " + std::string(type_name())));
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// @}
ferencd@0: 
ferencd@0: 
ferencd@0:     ////////////
ferencd@0:     // lookup //
ferencd@0:     ////////////
ferencd@0: 
ferencd@0:     /// @name lookup
ferencd@0:     /// @{
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief find an element in a JSON object
ferencd@0: 
ferencd@0:     Finds an element in a JSON object with key equivalent to @a key. If the
ferencd@0:     element is not found or the JSON value is not an object, end() is
ferencd@0:     returned.
ferencd@0: 
ferencd@0:     @note This method always returns @ref end() when executed on a JSON type
ferencd@0:           that is not an object.
ferencd@0: 
ferencd@0:     @param[in] key key value of the element to search for.
ferencd@0: 
ferencd@0:     @return Iterator to an element with key equivalent to @a key. If no such
ferencd@0:     element is found or the JSON value is not an object, past-the-end (see
ferencd@0:     @ref end()) iterator is returned.
ferencd@0: 
ferencd@0:     @complexity Logarithmic in the size of the JSON object.
ferencd@0: 
ferencd@0:     @liveexample{The example shows how `find()` is used.,find__key_type}
ferencd@0: 
ferencd@0:     @sa @ref contains(KeyT&&) const -- checks whether a key exists
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     template<typename KeyT>
ferencd@0:     iterator find(KeyT&& key)
ferencd@0:     {
ferencd@0:         auto result = end();
ferencd@0: 
ferencd@0:         if (is_object())
ferencd@0:         {
ferencd@0:             result.m_it.object_iterator = m_value.object->find(std::forward<KeyT>(key));
ferencd@0:         }
ferencd@0: 
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief find an element in a JSON object
ferencd@0:     @copydoc find(KeyT&&)
ferencd@0:     */
ferencd@0:     template<typename KeyT>
ferencd@0:     const_iterator find(KeyT&& key) const
ferencd@0:     {
ferencd@0:         auto result = cend();
ferencd@0: 
ferencd@0:         if (is_object())
ferencd@0:         {
ferencd@0:             result.m_it.object_iterator = m_value.object->find(std::forward<KeyT>(key));
ferencd@0:         }
ferencd@0: 
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief returns the number of occurrences of a key in a JSON object
ferencd@0: 
ferencd@0:     Returns the number of elements with key @a key. If ObjectType is the
ferencd@0:     default `std::map` type, the return value will always be `0` (@a key was
ferencd@0:     not found) or `1` (@a key was found).
ferencd@0: 
ferencd@0:     @note This method always returns `0` when executed on a JSON type that is
ferencd@0:           not an object.
ferencd@0: 
ferencd@0:     @param[in] key key value of the element to count
ferencd@0: 
ferencd@0:     @return Number of elements with key @a key. If the JSON value is not an
ferencd@0:     object, the return value will be `0`.
ferencd@0: 
ferencd@0:     @complexity Logarithmic in the size of the JSON object.
ferencd@0: 
ferencd@0:     @liveexample{The example shows how `count()` is used.,count}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     template<typename KeyT>
ferencd@0:     size_type count(KeyT&& key) const
ferencd@0:     {
ferencd@0:         // return 0 for all nonobject types
ferencd@0:         return is_object() ? m_value.object->count(std::forward<KeyT>(key)) : 0;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief check the existence of an element in a JSON object
ferencd@0: 
ferencd@0:     Check whether an element exists in a JSON object with key equivalent to
ferencd@0:     @a key. If the element is not found or the JSON value is not an object,
ferencd@0:     false is returned.
ferencd@0: 
ferencd@0:     @note This method always returns false when executed on a JSON type
ferencd@0:           that is not an object.
ferencd@0: 
ferencd@0:     @param[in] key key value to check its existence.
ferencd@0: 
ferencd@0:     @return true if an element with specified @a key exists. If no such
ferencd@0:     element with such key is found or the JSON value is not an object,
ferencd@0:     false is returned.
ferencd@0: 
ferencd@0:     @complexity Logarithmic in the size of the JSON object.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows an example for `contains()`.,contains}
ferencd@0: 
ferencd@0:     @sa @ref find(KeyT&&) -- returns an iterator to an object element
ferencd@0:     @sa @ref contains(const json_pointer&) const -- checks the existence for a JSON pointer
ferencd@0: 
ferencd@0:     @since version 3.6.0
ferencd@0:     */
ferencd@0:     template<typename KeyT, typename std::enable_if<
ferencd@0:                  not std::is_same<KeyT, json_pointer>::value, int>::type = 0>
ferencd@0:     bool contains(KeyT && key) const
ferencd@0:     {
ferencd@0:         return is_object() and m_value.object->find(std::forward<KeyT>(key)) != m_value.object->end();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief check the existence of an element in a JSON object given a JSON pointer
ferencd@0: 
ferencd@0:     Check wehther the given JSON pointer @a ptr can be resolved in the current
ferencd@0:     JSON value.
ferencd@0: 
ferencd@0:     @note This method can be executed on any JSON value type.
ferencd@0: 
ferencd@0:     @param[in] ptr JSON pointer to check its existence.
ferencd@0: 
ferencd@0:     @return true if the JSON pointer can be resolved to a stored value, false
ferencd@0:     otherwise.
ferencd@0: 
ferencd@0:     @post If `j.contains(ptr)` returns true, it is safe to call `j[ptr]`.
ferencd@0: 
ferencd@0:     @throw parse_error.106   if an array index begins with '0'
ferencd@0:     @throw parse_error.109   if an array index was not a number
ferencd@0: 
ferencd@0:     @complexity Logarithmic in the size of the JSON object.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows an example for `contains()`.,contains_json_pointer}
ferencd@0: 
ferencd@0:     @sa @ref contains(KeyT &&) const -- checks the existence of a key
ferencd@0: 
ferencd@0:     @since version 3.7.0
ferencd@0:     */
ferencd@0:     bool contains(const json_pointer& ptr) const
ferencd@0:     {
ferencd@0:         return ptr.contains(this);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// @}
ferencd@0: 
ferencd@0: 
ferencd@0:     ///////////////
ferencd@0:     // iterators //
ferencd@0:     ///////////////
ferencd@0: 
ferencd@0:     /// @name iterators
ferencd@0:     /// @{
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief returns an iterator to the first element
ferencd@0: 
ferencd@0:     Returns an iterator to the first element.
ferencd@0: 
ferencd@0:     @image html range-begin-end.svg "Illustration from cppreference.com"
ferencd@0: 
ferencd@0:     @return iterator to the first element
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @requirement This function helps `basic_json` satisfying the
ferencd@0:     [Container](https://en.cppreference.com/w/cpp/named_req/Container)
ferencd@0:     requirements:
ferencd@0:     - The complexity is constant.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows an example for `begin()`.,begin}
ferencd@0: 
ferencd@0:     @sa @ref cbegin() -- returns a const iterator to the beginning
ferencd@0:     @sa @ref end() -- returns an iterator to the end
ferencd@0:     @sa @ref cend() -- returns a const iterator to the end
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     iterator begin() noexcept
ferencd@0:     {
ferencd@0:         iterator result(this);
ferencd@0:         result.set_begin();
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @copydoc basic_json::cbegin()
ferencd@0:     */
ferencd@0:     const_iterator begin() const noexcept
ferencd@0:     {
ferencd@0:         return cbegin();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief returns a const iterator to the first element
ferencd@0: 
ferencd@0:     Returns a const iterator to the first element.
ferencd@0: 
ferencd@0:     @image html range-begin-end.svg "Illustration from cppreference.com"
ferencd@0: 
ferencd@0:     @return const iterator to the first element
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @requirement This function helps `basic_json` satisfying the
ferencd@0:     [Container](https://en.cppreference.com/w/cpp/named_req/Container)
ferencd@0:     requirements:
ferencd@0:     - The complexity is constant.
ferencd@0:     - Has the semantics of `const_cast<const basic_json&>(*this).begin()`.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows an example for `cbegin()`.,cbegin}
ferencd@0: 
ferencd@0:     @sa @ref begin() -- returns an iterator to the beginning
ferencd@0:     @sa @ref end() -- returns an iterator to the end
ferencd@0:     @sa @ref cend() -- returns a const iterator to the end
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     const_iterator cbegin() const noexcept
ferencd@0:     {
ferencd@0:         const_iterator result(this);
ferencd@0:         result.set_begin();
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief returns an iterator to one past the last element
ferencd@0: 
ferencd@0:     Returns an iterator to one past the last element.
ferencd@0: 
ferencd@0:     @image html range-begin-end.svg "Illustration from cppreference.com"
ferencd@0: 
ferencd@0:     @return iterator one past the last element
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @requirement This function helps `basic_json` satisfying the
ferencd@0:     [Container](https://en.cppreference.com/w/cpp/named_req/Container)
ferencd@0:     requirements:
ferencd@0:     - The complexity is constant.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows an example for `end()`.,end}
ferencd@0: 
ferencd@0:     @sa @ref cend() -- returns a const iterator to the end
ferencd@0:     @sa @ref begin() -- returns an iterator to the beginning
ferencd@0:     @sa @ref cbegin() -- returns a const iterator to the beginning
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     iterator end() noexcept
ferencd@0:     {
ferencd@0:         iterator result(this);
ferencd@0:         result.set_end();
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @copydoc basic_json::cend()
ferencd@0:     */
ferencd@0:     const_iterator end() const noexcept
ferencd@0:     {
ferencd@0:         return cend();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief returns a const iterator to one past the last element
ferencd@0: 
ferencd@0:     Returns a const iterator to one past the last element.
ferencd@0: 
ferencd@0:     @image html range-begin-end.svg "Illustration from cppreference.com"
ferencd@0: 
ferencd@0:     @return const iterator one past the last element
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @requirement This function helps `basic_json` satisfying the
ferencd@0:     [Container](https://en.cppreference.com/w/cpp/named_req/Container)
ferencd@0:     requirements:
ferencd@0:     - The complexity is constant.
ferencd@0:     - Has the semantics of `const_cast<const basic_json&>(*this).end()`.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows an example for `cend()`.,cend}
ferencd@0: 
ferencd@0:     @sa @ref end() -- returns an iterator to the end
ferencd@0:     @sa @ref begin() -- returns an iterator to the beginning
ferencd@0:     @sa @ref cbegin() -- returns a const iterator to the beginning
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     const_iterator cend() const noexcept
ferencd@0:     {
ferencd@0:         const_iterator result(this);
ferencd@0:         result.set_end();
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief returns an iterator to the reverse-beginning
ferencd@0: 
ferencd@0:     Returns an iterator to the reverse-beginning; that is, the last element.
ferencd@0: 
ferencd@0:     @image html range-rbegin-rend.svg "Illustration from cppreference.com"
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @requirement This function helps `basic_json` satisfying the
ferencd@0:     [ReversibleContainer](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer)
ferencd@0:     requirements:
ferencd@0:     - The complexity is constant.
ferencd@0:     - Has the semantics of `reverse_iterator(end())`.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows an example for `rbegin()`.,rbegin}
ferencd@0: 
ferencd@0:     @sa @ref crbegin() -- returns a const reverse iterator to the beginning
ferencd@0:     @sa @ref rend() -- returns a reverse iterator to the end
ferencd@0:     @sa @ref crend() -- returns a const reverse iterator to the end
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     reverse_iterator rbegin() noexcept
ferencd@0:     {
ferencd@0:         return reverse_iterator(end());
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @copydoc basic_json::crbegin()
ferencd@0:     */
ferencd@0:     const_reverse_iterator rbegin() const noexcept
ferencd@0:     {
ferencd@0:         return crbegin();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief returns an iterator to the reverse-end
ferencd@0: 
ferencd@0:     Returns an iterator to the reverse-end; that is, one before the first
ferencd@0:     element.
ferencd@0: 
ferencd@0:     @image html range-rbegin-rend.svg "Illustration from cppreference.com"
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @requirement This function helps `basic_json` satisfying the
ferencd@0:     [ReversibleContainer](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer)
ferencd@0:     requirements:
ferencd@0:     - The complexity is constant.
ferencd@0:     - Has the semantics of `reverse_iterator(begin())`.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows an example for `rend()`.,rend}
ferencd@0: 
ferencd@0:     @sa @ref crend() -- returns a const reverse iterator to the end
ferencd@0:     @sa @ref rbegin() -- returns a reverse iterator to the beginning
ferencd@0:     @sa @ref crbegin() -- returns a const reverse iterator to the beginning
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     reverse_iterator rend() noexcept
ferencd@0:     {
ferencd@0:         return reverse_iterator(begin());
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @copydoc basic_json::crend()
ferencd@0:     */
ferencd@0:     const_reverse_iterator rend() const noexcept
ferencd@0:     {
ferencd@0:         return crend();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief returns a const reverse iterator to the last element
ferencd@0: 
ferencd@0:     Returns a const iterator to the reverse-beginning; that is, the last
ferencd@0:     element.
ferencd@0: 
ferencd@0:     @image html range-rbegin-rend.svg "Illustration from cppreference.com"
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @requirement This function helps `basic_json` satisfying the
ferencd@0:     [ReversibleContainer](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer)
ferencd@0:     requirements:
ferencd@0:     - The complexity is constant.
ferencd@0:     - Has the semantics of `const_cast<const basic_json&>(*this).rbegin()`.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows an example for `crbegin()`.,crbegin}
ferencd@0: 
ferencd@0:     @sa @ref rbegin() -- returns a reverse iterator to the beginning
ferencd@0:     @sa @ref rend() -- returns a reverse iterator to the end
ferencd@0:     @sa @ref crend() -- returns a const reverse iterator to the end
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     const_reverse_iterator crbegin() const noexcept
ferencd@0:     {
ferencd@0:         return const_reverse_iterator(cend());
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief returns a const reverse iterator to one before the first
ferencd@0: 
ferencd@0:     Returns a const reverse iterator to the reverse-end; that is, one before
ferencd@0:     the first element.
ferencd@0: 
ferencd@0:     @image html range-rbegin-rend.svg "Illustration from cppreference.com"
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @requirement This function helps `basic_json` satisfying the
ferencd@0:     [ReversibleContainer](https://en.cppreference.com/w/cpp/named_req/ReversibleContainer)
ferencd@0:     requirements:
ferencd@0:     - The complexity is constant.
ferencd@0:     - Has the semantics of `const_cast<const basic_json&>(*this).rend()`.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows an example for `crend()`.,crend}
ferencd@0: 
ferencd@0:     @sa @ref rend() -- returns a reverse iterator to the end
ferencd@0:     @sa @ref rbegin() -- returns a reverse iterator to the beginning
ferencd@0:     @sa @ref crbegin() -- returns a const reverse iterator to the beginning
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     const_reverse_iterator crend() const noexcept
ferencd@0:     {
ferencd@0:         return const_reverse_iterator(cbegin());
ferencd@0:     }
ferencd@0: 
ferencd@0:   public:
ferencd@0:     /*!
ferencd@0:     @brief wrapper to access iterator member functions in range-based for
ferencd@0: 
ferencd@0:     This function allows to access @ref iterator::key() and @ref
ferencd@0:     iterator::value() during range-based for loops. In these loops, a
ferencd@0:     reference to the JSON values is returned, so there is no access to the
ferencd@0:     underlying iterator.
ferencd@0: 
ferencd@0:     For loop without iterator_wrapper:
ferencd@0: 
ferencd@0:     @code{cpp}
ferencd@0:     for (auto it = j_object.begin(); it != j_object.end(); ++it)
ferencd@0:     {
ferencd@0:         std::cout << "key: " << it.key() << ", value:" << it.value() << '\n';
ferencd@0:     }
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     Range-based for loop without iterator proxy:
ferencd@0: 
ferencd@0:     @code{cpp}
ferencd@0:     for (auto it : j_object)
ferencd@0:     {
ferencd@0:         // "it" is of type json::reference and has no key() member
ferencd@0:         std::cout << "value: " << it << '\n';
ferencd@0:     }
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     Range-based for loop with iterator proxy:
ferencd@0: 
ferencd@0:     @code{cpp}
ferencd@0:     for (auto it : json::iterator_wrapper(j_object))
ferencd@0:     {
ferencd@0:         std::cout << "key: " << it.key() << ", value:" << it.value() << '\n';
ferencd@0:     }
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     @note When iterating over an array, `key()` will return the index of the
ferencd@0:           element as string (see example).
ferencd@0: 
ferencd@0:     @param[in] ref  reference to a JSON value
ferencd@0:     @return iteration proxy object wrapping @a ref with an interface to use in
ferencd@0:             range-based for loops
ferencd@0: 
ferencd@0:     @liveexample{The following code shows how the wrapper is used,iterator_wrapper}
ferencd@0: 
ferencd@0:     @exceptionsafety Strong guarantee: if an exception is thrown, there are no
ferencd@0:     changes in the JSON value.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @note The name of this function is not yet final and may change in the
ferencd@0:     future.
ferencd@0: 
ferencd@0:     @deprecated This stream operator is deprecated and will be removed in
ferencd@0:                 future 4.0.0 of the library. Please use @ref items() instead;
ferencd@0:                 that is, replace `json::iterator_wrapper(j)` with `j.items()`.
ferencd@0:     */
ferencd@0:     JSON_HEDLEY_DEPRECATED(3.1.0)
ferencd@0:     static iteration_proxy<iterator> iterator_wrapper(reference ref) noexcept
ferencd@0:     {
ferencd@0:         return ref.items();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @copydoc iterator_wrapper(reference)
ferencd@0:     */
ferencd@0:     JSON_HEDLEY_DEPRECATED(3.1.0)
ferencd@0:     static iteration_proxy<const_iterator> iterator_wrapper(const_reference ref) noexcept
ferencd@0:     {
ferencd@0:         return ref.items();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief helper to access iterator member functions in range-based for
ferencd@0: 
ferencd@0:     This function allows to access @ref iterator::key() and @ref
ferencd@0:     iterator::value() during range-based for loops. In these loops, a
ferencd@0:     reference to the JSON values is returned, so there is no access to the
ferencd@0:     underlying iterator.
ferencd@0: 
ferencd@0:     For loop without `items()` function:
ferencd@0: 
ferencd@0:     @code{cpp}
ferencd@0:     for (auto it = j_object.begin(); it != j_object.end(); ++it)
ferencd@0:     {
ferencd@0:         std::cout << "key: " << it.key() << ", value:" << it.value() << '\n';
ferencd@0:     }
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     Range-based for loop without `items()` function:
ferencd@0: 
ferencd@0:     @code{cpp}
ferencd@0:     for (auto it : j_object)
ferencd@0:     {
ferencd@0:         // "it" is of type json::reference and has no key() member
ferencd@0:         std::cout << "value: " << it << '\n';
ferencd@0:     }
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     Range-based for loop with `items()` function:
ferencd@0: 
ferencd@0:     @code{cpp}
ferencd@0:     for (auto& el : j_object.items())
ferencd@0:     {
ferencd@0:         std::cout << "key: " << el.key() << ", value:" << el.value() << '\n';
ferencd@0:     }
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     The `items()` function also allows to use
ferencd@0:     [structured bindings](https://en.cppreference.com/w/cpp/language/structured_binding)
ferencd@0:     (C++17):
ferencd@0: 
ferencd@0:     @code{cpp}
ferencd@0:     for (auto& [key, val] : j_object.items())
ferencd@0:     {
ferencd@0:         std::cout << "key: " << key << ", value:" << val << '\n';
ferencd@0:     }
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     @note When iterating over an array, `key()` will return the index of the
ferencd@0:           element as string (see example). For primitive types (e.g., numbers),
ferencd@0:           `key()` returns an empty string.
ferencd@0: 
ferencd@0:     @return iteration proxy object wrapping @a ref with an interface to use in
ferencd@0:             range-based for loops
ferencd@0: 
ferencd@0:     @liveexample{The following code shows how the function is used.,items}
ferencd@0: 
ferencd@0:     @exceptionsafety Strong guarantee: if an exception is thrown, there are no
ferencd@0:     changes in the JSON value.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @since version 3.1.0, structured bindings support since 3.5.0.
ferencd@0:     */
ferencd@0:     iteration_proxy<iterator> items() noexcept
ferencd@0:     {
ferencd@0:         return iteration_proxy<iterator>(*this);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @copydoc items()
ferencd@0:     */
ferencd@0:     iteration_proxy<const_iterator> items() const noexcept
ferencd@0:     {
ferencd@0:         return iteration_proxy<const_iterator>(*this);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// @}
ferencd@0: 
ferencd@0: 
ferencd@0:     //////////////
ferencd@0:     // capacity //
ferencd@0:     //////////////
ferencd@0: 
ferencd@0:     /// @name capacity
ferencd@0:     /// @{
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief checks whether the container is empty.
ferencd@0: 
ferencd@0:     Checks if a JSON value has no elements (i.e. whether its @ref size is `0`).
ferencd@0: 
ferencd@0:     @return The return value depends on the different types and is
ferencd@0:             defined as follows:
ferencd@0:             Value type  | return value
ferencd@0:             ----------- | -------------
ferencd@0:             null        | `true`
ferencd@0:             boolean     | `false`
ferencd@0:             string      | `false`
ferencd@0:             number      | `false`
ferencd@0:             object      | result of function `object_t::empty()`
ferencd@0:             array       | result of function `array_t::empty()`
ferencd@0: 
ferencd@0:     @liveexample{The following code uses `empty()` to check if a JSON
ferencd@0:     object contains any elements.,empty}
ferencd@0: 
ferencd@0:     @complexity Constant, as long as @ref array_t and @ref object_t satisfy
ferencd@0:     the Container concept; that is, their `empty()` functions have constant
ferencd@0:     complexity.
ferencd@0: 
ferencd@0:     @iterators No changes.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this function never throws exceptions.
ferencd@0: 
ferencd@0:     @note This function does not return whether a string stored as JSON value
ferencd@0:     is empty - it returns whether the JSON container itself is empty which is
ferencd@0:     false in the case of a string.
ferencd@0: 
ferencd@0:     @requirement This function helps `basic_json` satisfying the
ferencd@0:     [Container](https://en.cppreference.com/w/cpp/named_req/Container)
ferencd@0:     requirements:
ferencd@0:     - The complexity is constant.
ferencd@0:     - Has the semantics of `begin() == end()`.
ferencd@0: 
ferencd@0:     @sa @ref size() -- returns the number of elements
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     bool empty() const noexcept
ferencd@0:     {
ferencd@0:         switch (m_type)
ferencd@0:         {
ferencd@0:             case value_t::null:
ferencd@0:             {
ferencd@0:                 // null values are empty
ferencd@0:                 return true;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 // delegate call to array_t::empty()
ferencd@0:                 return m_value.array->empty();
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::object:
ferencd@0:             {
ferencd@0:                 // delegate call to object_t::empty()
ferencd@0:                 return m_value.object->empty();
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 // all other types are nonempty
ferencd@0:                 return false;
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief returns the number of elements
ferencd@0: 
ferencd@0:     Returns the number of elements in a JSON value.
ferencd@0: 
ferencd@0:     @return The return value depends on the different types and is
ferencd@0:             defined as follows:
ferencd@0:             Value type  | return value
ferencd@0:             ----------- | -------------
ferencd@0:             null        | `0`
ferencd@0:             boolean     | `1`
ferencd@0:             string      | `1`
ferencd@0:             number      | `1`
ferencd@0:             object      | result of function object_t::size()
ferencd@0:             array       | result of function array_t::size()
ferencd@0: 
ferencd@0:     @liveexample{The following code calls `size()` on the different value
ferencd@0:     types.,size}
ferencd@0: 
ferencd@0:     @complexity Constant, as long as @ref array_t and @ref object_t satisfy
ferencd@0:     the Container concept; that is, their size() functions have constant
ferencd@0:     complexity.
ferencd@0: 
ferencd@0:     @iterators No changes.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this function never throws exceptions.
ferencd@0: 
ferencd@0:     @note This function does not return the length of a string stored as JSON
ferencd@0:     value - it returns the number of elements in the JSON value which is 1 in
ferencd@0:     the case of a string.
ferencd@0: 
ferencd@0:     @requirement This function helps `basic_json` satisfying the
ferencd@0:     [Container](https://en.cppreference.com/w/cpp/named_req/Container)
ferencd@0:     requirements:
ferencd@0:     - The complexity is constant.
ferencd@0:     - Has the semantics of `std::distance(begin(), end())`.
ferencd@0: 
ferencd@0:     @sa @ref empty() -- checks whether the container is empty
ferencd@0:     @sa @ref max_size() -- returns the maximal number of elements
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     size_type size() const noexcept
ferencd@0:     {
ferencd@0:         switch (m_type)
ferencd@0:         {
ferencd@0:             case value_t::null:
ferencd@0:             {
ferencd@0:                 // null values are empty
ferencd@0:                 return 0;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 // delegate call to array_t::size()
ferencd@0:                 return m_value.array->size();
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::object:
ferencd@0:             {
ferencd@0:                 // delegate call to object_t::size()
ferencd@0:                 return m_value.object->size();
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 // all other types have size 1
ferencd@0:                 return 1;
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief returns the maximum possible number of elements
ferencd@0: 
ferencd@0:     Returns the maximum number of elements a JSON value is able to hold due to
ferencd@0:     system or library implementation limitations, i.e. `std::distance(begin(),
ferencd@0:     end())` for the JSON value.
ferencd@0: 
ferencd@0:     @return The return value depends on the different types and is
ferencd@0:             defined as follows:
ferencd@0:             Value type  | return value
ferencd@0:             ----------- | -------------
ferencd@0:             null        | `0` (same as `size()`)
ferencd@0:             boolean     | `1` (same as `size()`)
ferencd@0:             string      | `1` (same as `size()`)
ferencd@0:             number      | `1` (same as `size()`)
ferencd@0:             object      | result of function `object_t::max_size()`
ferencd@0:             array       | result of function `array_t::max_size()`
ferencd@0: 
ferencd@0:     @liveexample{The following code calls `max_size()` on the different value
ferencd@0:     types. Note the output is implementation specific.,max_size}
ferencd@0: 
ferencd@0:     @complexity Constant, as long as @ref array_t and @ref object_t satisfy
ferencd@0:     the Container concept; that is, their `max_size()` functions have constant
ferencd@0:     complexity.
ferencd@0: 
ferencd@0:     @iterators No changes.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this function never throws exceptions.
ferencd@0: 
ferencd@0:     @requirement This function helps `basic_json` satisfying the
ferencd@0:     [Container](https://en.cppreference.com/w/cpp/named_req/Container)
ferencd@0:     requirements:
ferencd@0:     - The complexity is constant.
ferencd@0:     - Has the semantics of returning `b.size()` where `b` is the largest
ferencd@0:       possible JSON value.
ferencd@0: 
ferencd@0:     @sa @ref size() -- returns the number of elements
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     size_type max_size() const noexcept
ferencd@0:     {
ferencd@0:         switch (m_type)
ferencd@0:         {
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 // delegate call to array_t::max_size()
ferencd@0:                 return m_value.array->max_size();
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::object:
ferencd@0:             {
ferencd@0:                 // delegate call to object_t::max_size()
ferencd@0:                 return m_value.object->max_size();
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 // all other types have max_size() == size()
ferencd@0:                 return size();
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// @}
ferencd@0: 
ferencd@0: 
ferencd@0:     ///////////////
ferencd@0:     // modifiers //
ferencd@0:     ///////////////
ferencd@0: 
ferencd@0:     /// @name modifiers
ferencd@0:     /// @{
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief clears the contents
ferencd@0: 
ferencd@0:     Clears the content of a JSON value and resets it to the default value as
ferencd@0:     if @ref basic_json(value_t) would have been called with the current value
ferencd@0:     type from @ref type():
ferencd@0: 
ferencd@0:     Value type  | initial value
ferencd@0:     ----------- | -------------
ferencd@0:     null        | `null`
ferencd@0:     boolean     | `false`
ferencd@0:     string      | `""`
ferencd@0:     number      | `0`
ferencd@0:     object      | `{}`
ferencd@0:     array       | `[]`
ferencd@0: 
ferencd@0:     @post Has the same effect as calling
ferencd@0:     @code {.cpp}
ferencd@0:     *this = basic_json(type());
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     @liveexample{The example below shows the effect of `clear()` to different
ferencd@0:     JSON types.,clear}
ferencd@0: 
ferencd@0:     @complexity Linear in the size of the JSON value.
ferencd@0: 
ferencd@0:     @iterators All iterators, pointers and references related to this container
ferencd@0:                are invalidated.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this function never throws exceptions.
ferencd@0: 
ferencd@0:     @sa @ref basic_json(value_t) -- constructor that creates an object with the
ferencd@0:         same value than calling `clear()`
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     void clear() noexcept
ferencd@0:     {
ferencd@0:         switch (m_type)
ferencd@0:         {
ferencd@0:             case value_t::number_integer:
ferencd@0:             {
ferencd@0:                 m_value.number_integer = 0;
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::number_unsigned:
ferencd@0:             {
ferencd@0:                 m_value.number_unsigned = 0;
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::number_float:
ferencd@0:             {
ferencd@0:                 m_value.number_float = 0.0;
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::boolean:
ferencd@0:             {
ferencd@0:                 m_value.boolean = false;
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::string:
ferencd@0:             {
ferencd@0:                 m_value.string->clear();
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 m_value.array->clear();
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::object:
ferencd@0:             {
ferencd@0:                 m_value.object->clear();
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:                 break;
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief add an object to an array
ferencd@0: 
ferencd@0:     Appends the given element @a val to the end of the JSON value. If the
ferencd@0:     function is called on a JSON null value, an empty array is created before
ferencd@0:     appending @a val.
ferencd@0: 
ferencd@0:     @param[in] val the value to add to the JSON array
ferencd@0: 
ferencd@0:     @throw type_error.308 when called on a type other than JSON array or
ferencd@0:     null; example: `"cannot use push_back() with number"`
ferencd@0: 
ferencd@0:     @complexity Amortized constant.
ferencd@0: 
ferencd@0:     @liveexample{The example shows how `push_back()` and `+=` can be used to
ferencd@0:     add elements to a JSON array. Note how the `null` value was silently
ferencd@0:     converted to a JSON array.,push_back}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     void push_back(basic_json&& val)
ferencd@0:     {
ferencd@0:         // push_back only works for null objects or arrays
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not(is_null() or is_array())))
ferencd@0:         {
ferencd@0:             JSON_THROW(type_error::create(308, "cannot use push_back() with " + std::string(type_name())));
ferencd@0:         }
ferencd@0: 
ferencd@0:         // transform null object into an array
ferencd@0:         if (is_null())
ferencd@0:         {
ferencd@0:             m_type = value_t::array;
ferencd@0:             m_value = value_t::array;
ferencd@0:             assert_invariant();
ferencd@0:         }
ferencd@0: 
ferencd@0:         // add element to array (move semantics)
ferencd@0:         m_value.array->push_back(std::move(val));
ferencd@0:         // invalidate object: mark it null so we do not call the destructor
ferencd@0:         // cppcheck-suppress accessMoved
ferencd@0:         val.m_type = value_t::null;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief add an object to an array
ferencd@0:     @copydoc push_back(basic_json&&)
ferencd@0:     */
ferencd@0:     reference operator+=(basic_json&& val)
ferencd@0:     {
ferencd@0:         push_back(std::move(val));
ferencd@0:         return *this;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief add an object to an array
ferencd@0:     @copydoc push_back(basic_json&&)
ferencd@0:     */
ferencd@0:     void push_back(const basic_json& val)
ferencd@0:     {
ferencd@0:         // push_back only works for null objects or arrays
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not(is_null() or is_array())))
ferencd@0:         {
ferencd@0:             JSON_THROW(type_error::create(308, "cannot use push_back() with " + std::string(type_name())));
ferencd@0:         }
ferencd@0: 
ferencd@0:         // transform null object into an array
ferencd@0:         if (is_null())
ferencd@0:         {
ferencd@0:             m_type = value_t::array;
ferencd@0:             m_value = value_t::array;
ferencd@0:             assert_invariant();
ferencd@0:         }
ferencd@0: 
ferencd@0:         // add element to array
ferencd@0:         m_value.array->push_back(val);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief add an object to an array
ferencd@0:     @copydoc push_back(basic_json&&)
ferencd@0:     */
ferencd@0:     reference operator+=(const basic_json& val)
ferencd@0:     {
ferencd@0:         push_back(val);
ferencd@0:         return *this;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief add an object to an object
ferencd@0: 
ferencd@0:     Inserts the given element @a val to the JSON object. If the function is
ferencd@0:     called on a JSON null value, an empty object is created before inserting
ferencd@0:     @a val.
ferencd@0: 
ferencd@0:     @param[in] val the value to add to the JSON object
ferencd@0: 
ferencd@0:     @throw type_error.308 when called on a type other than JSON object or
ferencd@0:     null; example: `"cannot use push_back() with number"`
ferencd@0: 
ferencd@0:     @complexity Logarithmic in the size of the container, O(log(`size()`)).
ferencd@0: 
ferencd@0:     @liveexample{The example shows how `push_back()` and `+=` can be used to
ferencd@0:     add elements to a JSON object. Note how the `null` value was silently
ferencd@0:     converted to a JSON object.,push_back__object_t__value}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     void push_back(const typename object_t::value_type& val)
ferencd@0:     {
ferencd@0:         // push_back only works for null objects or objects
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not(is_null() or is_object())))
ferencd@0:         {
ferencd@0:             JSON_THROW(type_error::create(308, "cannot use push_back() with " + std::string(type_name())));
ferencd@0:         }
ferencd@0: 
ferencd@0:         // transform null object into an object
ferencd@0:         if (is_null())
ferencd@0:         {
ferencd@0:             m_type = value_t::object;
ferencd@0:             m_value = value_t::object;
ferencd@0:             assert_invariant();
ferencd@0:         }
ferencd@0: 
ferencd@0:         // add element to array
ferencd@0:         m_value.object->insert(val);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief add an object to an object
ferencd@0:     @copydoc push_back(const typename object_t::value_type&)
ferencd@0:     */
ferencd@0:     reference operator+=(const typename object_t::value_type& val)
ferencd@0:     {
ferencd@0:         push_back(val);
ferencd@0:         return *this;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief add an object to an object
ferencd@0: 
ferencd@0:     This function allows to use `push_back` with an initializer list. In case
ferencd@0: 
ferencd@0:     1. the current value is an object,
ferencd@0:     2. the initializer list @a init contains only two elements, and
ferencd@0:     3. the first element of @a init is a string,
ferencd@0: 
ferencd@0:     @a init is converted into an object element and added using
ferencd@0:     @ref push_back(const typename object_t::value_type&). Otherwise, @a init
ferencd@0:     is converted to a JSON value and added using @ref push_back(basic_json&&).
ferencd@0: 
ferencd@0:     @param[in] init  an initializer list
ferencd@0: 
ferencd@0:     @complexity Linear in the size of the initializer list @a init.
ferencd@0: 
ferencd@0:     @note This function is required to resolve an ambiguous overload error,
ferencd@0:           because pairs like `{"key", "value"}` can be both interpreted as
ferencd@0:           `object_t::value_type` or `std::initializer_list<basic_json>`, see
ferencd@0:           https://github.com/nlohmann/json/issues/235 for more information.
ferencd@0: 
ferencd@0:     @liveexample{The example shows how initializer lists are treated as
ferencd@0:     objects when possible.,push_back__initializer_list}
ferencd@0:     */
ferencd@0:     void push_back(initializer_list_t init)
ferencd@0:     {
ferencd@0:         if (is_object() and init.size() == 2 and (*init.begin())->is_string())
ferencd@0:         {
ferencd@0:             basic_json&& key = init.begin()->moved_or_copied();
ferencd@0:             push_back(typename object_t::value_type(
ferencd@0:                           std::move(key.get_ref<string_t&>()), (init.begin() + 1)->moved_or_copied()));
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             push_back(basic_json(init));
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief add an object to an object
ferencd@0:     @copydoc push_back(initializer_list_t)
ferencd@0:     */
ferencd@0:     reference operator+=(initializer_list_t init)
ferencd@0:     {
ferencd@0:         push_back(init);
ferencd@0:         return *this;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief add an object to an array
ferencd@0: 
ferencd@0:     Creates a JSON value from the passed parameters @a args to the end of the
ferencd@0:     JSON value. If the function is called on a JSON null value, an empty array
ferencd@0:     is created before appending the value created from @a args.
ferencd@0: 
ferencd@0:     @param[in] args arguments to forward to a constructor of @ref basic_json
ferencd@0:     @tparam Args compatible types to create a @ref basic_json object
ferencd@0: 
ferencd@0:     @return reference to the inserted element
ferencd@0: 
ferencd@0:     @throw type_error.311 when called on a type other than JSON array or
ferencd@0:     null; example: `"cannot use emplace_back() with number"`
ferencd@0: 
ferencd@0:     @complexity Amortized constant.
ferencd@0: 
ferencd@0:     @liveexample{The example shows how `push_back()` can be used to add
ferencd@0:     elements to a JSON array. Note how the `null` value was silently converted
ferencd@0:     to a JSON array.,emplace_back}
ferencd@0: 
ferencd@0:     @since version 2.0.8, returns reference since 3.7.0
ferencd@0:     */
ferencd@0:     template<class... Args>
ferencd@0:     reference emplace_back(Args&& ... args)
ferencd@0:     {
ferencd@0:         // emplace_back only works for null objects or arrays
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not(is_null() or is_array())))
ferencd@0:         {
ferencd@0:             JSON_THROW(type_error::create(311, "cannot use emplace_back() with " + std::string(type_name())));
ferencd@0:         }
ferencd@0: 
ferencd@0:         // transform null object into an array
ferencd@0:         if (is_null())
ferencd@0:         {
ferencd@0:             m_type = value_t::array;
ferencd@0:             m_value = value_t::array;
ferencd@0:             assert_invariant();
ferencd@0:         }
ferencd@0: 
ferencd@0:         // add element to array (perfect forwarding)
ferencd@0: #ifdef JSON_HAS_CPP_17
ferencd@0:         return m_value.array->emplace_back(std::forward<Args>(args)...);
ferencd@0: #else
ferencd@0:         m_value.array->emplace_back(std::forward<Args>(args)...);
ferencd@0:         return m_value.array->back();
ferencd@0: #endif
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief add an object to an object if key does not exist
ferencd@0: 
ferencd@0:     Inserts a new element into a JSON object constructed in-place with the
ferencd@0:     given @a args if there is no element with the key in the container. If the
ferencd@0:     function is called on a JSON null value, an empty object is created before
ferencd@0:     appending the value created from @a args.
ferencd@0: 
ferencd@0:     @param[in] args arguments to forward to a constructor of @ref basic_json
ferencd@0:     @tparam Args compatible types to create a @ref basic_json object
ferencd@0: 
ferencd@0:     @return a pair consisting of an iterator to the inserted element, or the
ferencd@0:             already-existing element if no insertion happened, and a bool
ferencd@0:             denoting whether the insertion took place.
ferencd@0: 
ferencd@0:     @throw type_error.311 when called on a type other than JSON object or
ferencd@0:     null; example: `"cannot use emplace() with number"`
ferencd@0: 
ferencd@0:     @complexity Logarithmic in the size of the container, O(log(`size()`)).
ferencd@0: 
ferencd@0:     @liveexample{The example shows how `emplace()` can be used to add elements
ferencd@0:     to a JSON object. Note how the `null` value was silently converted to a
ferencd@0:     JSON object. Further note how no value is added if there was already one
ferencd@0:     value stored with the same key.,emplace}
ferencd@0: 
ferencd@0:     @since version 2.0.8
ferencd@0:     */
ferencd@0:     template<class... Args>
ferencd@0:     std::pair<iterator, bool> emplace(Args&& ... args)
ferencd@0:     {
ferencd@0:         // emplace only works for null objects or arrays
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not(is_null() or is_object())))
ferencd@0:         {
ferencd@0:             JSON_THROW(type_error::create(311, "cannot use emplace() with " + std::string(type_name())));
ferencd@0:         }
ferencd@0: 
ferencd@0:         // transform null object into an object
ferencd@0:         if (is_null())
ferencd@0:         {
ferencd@0:             m_type = value_t::object;
ferencd@0:             m_value = value_t::object;
ferencd@0:             assert_invariant();
ferencd@0:         }
ferencd@0: 
ferencd@0:         // add element to array (perfect forwarding)
ferencd@0:         auto res = m_value.object->emplace(std::forward<Args>(args)...);
ferencd@0:         // create result iterator and set iterator to the result of emplace
ferencd@0:         auto it = begin();
ferencd@0:         it.m_it.object_iterator = res.first;
ferencd@0: 
ferencd@0:         // return pair of iterator and boolean
ferencd@0:         return {it, res.second};
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// Helper for insertion of an iterator
ferencd@0:     /// @note: This uses std::distance to support GCC 4.8,
ferencd@0:     ///        see https://github.com/nlohmann/json/pull/1257
ferencd@0:     template<typename... Args>
ferencd@0:     iterator insert_iterator(const_iterator pos, Args&& ... args)
ferencd@0:     {
ferencd@0:         iterator result(this);
ferencd@0:         assert(m_value.array != nullptr);
ferencd@0: 
ferencd@0:         auto insert_pos = std::distance(m_value.array->begin(), pos.m_it.array_iterator);
ferencd@0:         m_value.array->insert(pos.m_it.array_iterator, std::forward<Args>(args)...);
ferencd@0:         result.m_it.array_iterator = m_value.array->begin() + insert_pos;
ferencd@0: 
ferencd@0:         // This could have been written as:
ferencd@0:         // result.m_it.array_iterator = m_value.array->insert(pos.m_it.array_iterator, cnt, val);
ferencd@0:         // but the return value of insert is missing in GCC 4.8, so it is written this way instead.
ferencd@0: 
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief inserts element
ferencd@0: 
ferencd@0:     Inserts element @a val before iterator @a pos.
ferencd@0: 
ferencd@0:     @param[in] pos iterator before which the content will be inserted; may be
ferencd@0:     the end() iterator
ferencd@0:     @param[in] val element to insert
ferencd@0:     @return iterator pointing to the inserted @a val.
ferencd@0: 
ferencd@0:     @throw type_error.309 if called on JSON values other than arrays;
ferencd@0:     example: `"cannot use insert() with string"`
ferencd@0:     @throw invalid_iterator.202 if @a pos is not an iterator of *this;
ferencd@0:     example: `"iterator does not fit current value"`
ferencd@0: 
ferencd@0:     @complexity Constant plus linear in the distance between @a pos and end of
ferencd@0:     the container.
ferencd@0: 
ferencd@0:     @liveexample{The example shows how `insert()` is used.,insert}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     iterator insert(const_iterator pos, const basic_json& val)
ferencd@0:     {
ferencd@0:         // insert only works for arrays
ferencd@0:         if (JSON_HEDLEY_LIKELY(is_array()))
ferencd@0:         {
ferencd@0:             // check if iterator pos fits to this JSON value
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(pos.m_object != this))
ferencd@0:             {
ferencd@0:                 JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value"));
ferencd@0:             }
ferencd@0: 
ferencd@0:             // insert to array and return iterator
ferencd@0:             return insert_iterator(pos, val);
ferencd@0:         }
ferencd@0: 
ferencd@0:         JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name())));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief inserts element
ferencd@0:     @copydoc insert(const_iterator, const basic_json&)
ferencd@0:     */
ferencd@0:     iterator insert(const_iterator pos, basic_json&& val)
ferencd@0:     {
ferencd@0:         return insert(pos, val);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief inserts elements
ferencd@0: 
ferencd@0:     Inserts @a cnt copies of @a val before iterator @a pos.
ferencd@0: 
ferencd@0:     @param[in] pos iterator before which the content will be inserted; may be
ferencd@0:     the end() iterator
ferencd@0:     @param[in] cnt number of copies of @a val to insert
ferencd@0:     @param[in] val element to insert
ferencd@0:     @return iterator pointing to the first element inserted, or @a pos if
ferencd@0:     `cnt==0`
ferencd@0: 
ferencd@0:     @throw type_error.309 if called on JSON values other than arrays; example:
ferencd@0:     `"cannot use insert() with string"`
ferencd@0:     @throw invalid_iterator.202 if @a pos is not an iterator of *this;
ferencd@0:     example: `"iterator does not fit current value"`
ferencd@0: 
ferencd@0:     @complexity Linear in @a cnt plus linear in the distance between @a pos
ferencd@0:     and end of the container.
ferencd@0: 
ferencd@0:     @liveexample{The example shows how `insert()` is used.,insert__count}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     iterator insert(const_iterator pos, size_type cnt, const basic_json& val)
ferencd@0:     {
ferencd@0:         // insert only works for arrays
ferencd@0:         if (JSON_HEDLEY_LIKELY(is_array()))
ferencd@0:         {
ferencd@0:             // check if iterator pos fits to this JSON value
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(pos.m_object != this))
ferencd@0:             {
ferencd@0:                 JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value"));
ferencd@0:             }
ferencd@0: 
ferencd@0:             // insert to array and return iterator
ferencd@0:             return insert_iterator(pos, cnt, val);
ferencd@0:         }
ferencd@0: 
ferencd@0:         JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name())));
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief inserts elements
ferencd@0: 
ferencd@0:     Inserts elements from range `[first, last)` before iterator @a pos.
ferencd@0: 
ferencd@0:     @param[in] pos iterator before which the content will be inserted; may be
ferencd@0:     the end() iterator
ferencd@0:     @param[in] first begin of the range of elements to insert
ferencd@0:     @param[in] last end of the range of elements to insert
ferencd@0: 
ferencd@0:     @throw type_error.309 if called on JSON values other than arrays; example:
ferencd@0:     `"cannot use insert() with string"`
ferencd@0:     @throw invalid_iterator.202 if @a pos is not an iterator of *this;
ferencd@0:     example: `"iterator does not fit current value"`
ferencd@0:     @throw invalid_iterator.210 if @a first and @a last do not belong to the
ferencd@0:     same JSON value; example: `"iterators do not fit"`
ferencd@0:     @throw invalid_iterator.211 if @a first or @a last are iterators into
ferencd@0:     container for which insert is called; example: `"passed iterators may not
ferencd@0:     belong to container"`
ferencd@0: 
ferencd@0:     @return iterator pointing to the first element inserted, or @a pos if
ferencd@0:     `first==last`
ferencd@0: 
ferencd@0:     @complexity Linear in `std::distance(first, last)` plus linear in the
ferencd@0:     distance between @a pos and end of the container.
ferencd@0: 
ferencd@0:     @liveexample{The example shows how `insert()` is used.,insert__range}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     iterator insert(const_iterator pos, const_iterator first, const_iterator last)
ferencd@0:     {
ferencd@0:         // insert only works for arrays
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not is_array()))
ferencd@0:         {
ferencd@0:             JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name())));
ferencd@0:         }
ferencd@0: 
ferencd@0:         // check if iterator pos fits to this JSON value
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(pos.m_object != this))
ferencd@0:         {
ferencd@0:             JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value"));
ferencd@0:         }
ferencd@0: 
ferencd@0:         // check if range iterators belong to the same JSON object
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(first.m_object != last.m_object))
ferencd@0:         {
ferencd@0:             JSON_THROW(invalid_iterator::create(210, "iterators do not fit"));
ferencd@0:         }
ferencd@0: 
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(first.m_object == this))
ferencd@0:         {
ferencd@0:             JSON_THROW(invalid_iterator::create(211, "passed iterators may not belong to container"));
ferencd@0:         }
ferencd@0: 
ferencd@0:         // insert to array and return iterator
ferencd@0:         return insert_iterator(pos, first.m_it.array_iterator, last.m_it.array_iterator);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief inserts elements
ferencd@0: 
ferencd@0:     Inserts elements from initializer list @a ilist before iterator @a pos.
ferencd@0: 
ferencd@0:     @param[in] pos iterator before which the content will be inserted; may be
ferencd@0:     the end() iterator
ferencd@0:     @param[in] ilist initializer list to insert the values from
ferencd@0: 
ferencd@0:     @throw type_error.309 if called on JSON values other than arrays; example:
ferencd@0:     `"cannot use insert() with string"`
ferencd@0:     @throw invalid_iterator.202 if @a pos is not an iterator of *this;
ferencd@0:     example: `"iterator does not fit current value"`
ferencd@0: 
ferencd@0:     @return iterator pointing to the first element inserted, or @a pos if
ferencd@0:     `ilist` is empty
ferencd@0: 
ferencd@0:     @complexity Linear in `ilist.size()` plus linear in the distance between
ferencd@0:     @a pos and end of the container.
ferencd@0: 
ferencd@0:     @liveexample{The example shows how `insert()` is used.,insert__ilist}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     iterator insert(const_iterator pos, initializer_list_t ilist)
ferencd@0:     {
ferencd@0:         // insert only works for arrays
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not is_array()))
ferencd@0:         {
ferencd@0:             JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name())));
ferencd@0:         }
ferencd@0: 
ferencd@0:         // check if iterator pos fits to this JSON value
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(pos.m_object != this))
ferencd@0:         {
ferencd@0:             JSON_THROW(invalid_iterator::create(202, "iterator does not fit current value"));
ferencd@0:         }
ferencd@0: 
ferencd@0:         // insert to array and return iterator
ferencd@0:         return insert_iterator(pos, ilist.begin(), ilist.end());
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief inserts elements
ferencd@0: 
ferencd@0:     Inserts elements from range `[first, last)`.
ferencd@0: 
ferencd@0:     @param[in] first begin of the range of elements to insert
ferencd@0:     @param[in] last end of the range of elements to insert
ferencd@0: 
ferencd@0:     @throw type_error.309 if called on JSON values other than objects; example:
ferencd@0:     `"cannot use insert() with string"`
ferencd@0:     @throw invalid_iterator.202 if iterator @a first or @a last does does not
ferencd@0:     point to an object; example: `"iterators first and last must point to
ferencd@0:     objects"`
ferencd@0:     @throw invalid_iterator.210 if @a first and @a last do not belong to the
ferencd@0:     same JSON value; example: `"iterators do not fit"`
ferencd@0: 
ferencd@0:     @complexity Logarithmic: `O(N*log(size() + N))`, where `N` is the number
ferencd@0:     of elements to insert.
ferencd@0: 
ferencd@0:     @liveexample{The example shows how `insert()` is used.,insert__range_object}
ferencd@0: 
ferencd@0:     @since version 3.0.0
ferencd@0:     */
ferencd@0:     void insert(const_iterator first, const_iterator last)
ferencd@0:     {
ferencd@0:         // insert only works for objects
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not is_object()))
ferencd@0:         {
ferencd@0:             JSON_THROW(type_error::create(309, "cannot use insert() with " + std::string(type_name())));
ferencd@0:         }
ferencd@0: 
ferencd@0:         // check if range iterators belong to the same JSON object
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(first.m_object != last.m_object))
ferencd@0:         {
ferencd@0:             JSON_THROW(invalid_iterator::create(210, "iterators do not fit"));
ferencd@0:         }
ferencd@0: 
ferencd@0:         // passed iterators must belong to objects
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not first.m_object->is_object()))
ferencd@0:         {
ferencd@0:             JSON_THROW(invalid_iterator::create(202, "iterators first and last must point to objects"));
ferencd@0:         }
ferencd@0: 
ferencd@0:         m_value.object->insert(first.m_it.object_iterator, last.m_it.object_iterator);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief updates a JSON object from another object, overwriting existing keys
ferencd@0: 
ferencd@0:     Inserts all values from JSON object @a j and overwrites existing keys.
ferencd@0: 
ferencd@0:     @param[in] j  JSON object to read values from
ferencd@0: 
ferencd@0:     @throw type_error.312 if called on JSON values other than objects; example:
ferencd@0:     `"cannot use update() with string"`
ferencd@0: 
ferencd@0:     @complexity O(N*log(size() + N)), where N is the number of elements to
ferencd@0:                 insert.
ferencd@0: 
ferencd@0:     @liveexample{The example shows how `update()` is used.,update}
ferencd@0: 
ferencd@0:     @sa https://docs.python.org/3.6/library/stdtypes.html#dict.update
ferencd@0: 
ferencd@0:     @since version 3.0.0
ferencd@0:     */
ferencd@0:     void update(const_reference j)
ferencd@0:     {
ferencd@0:         // implicitly convert null value to an empty object
ferencd@0:         if (is_null())
ferencd@0:         {
ferencd@0:             m_type = value_t::object;
ferencd@0:             m_value.object = create<object_t>();
ferencd@0:             assert_invariant();
ferencd@0:         }
ferencd@0: 
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not is_object()))
ferencd@0:         {
ferencd@0:             JSON_THROW(type_error::create(312, "cannot use update() with " + std::string(type_name())));
ferencd@0:         }
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not j.is_object()))
ferencd@0:         {
ferencd@0:             JSON_THROW(type_error::create(312, "cannot use update() with " + std::string(j.type_name())));
ferencd@0:         }
ferencd@0: 
ferencd@0:         for (auto it = j.cbegin(); it != j.cend(); ++it)
ferencd@0:         {
ferencd@0:             m_value.object->operator[](it.key()) = it.value();
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief updates a JSON object from another object, overwriting existing keys
ferencd@0: 
ferencd@0:     Inserts all values from from range `[first, last)` and overwrites existing
ferencd@0:     keys.
ferencd@0: 
ferencd@0:     @param[in] first begin of the range of elements to insert
ferencd@0:     @param[in] last end of the range of elements to insert
ferencd@0: 
ferencd@0:     @throw type_error.312 if called on JSON values other than objects; example:
ferencd@0:     `"cannot use update() with string"`
ferencd@0:     @throw invalid_iterator.202 if iterator @a first or @a last does does not
ferencd@0:     point to an object; example: `"iterators first and last must point to
ferencd@0:     objects"`
ferencd@0:     @throw invalid_iterator.210 if @a first and @a last do not belong to the
ferencd@0:     same JSON value; example: `"iterators do not fit"`
ferencd@0: 
ferencd@0:     @complexity O(N*log(size() + N)), where N is the number of elements to
ferencd@0:                 insert.
ferencd@0: 
ferencd@0:     @liveexample{The example shows how `update()` is used__range.,update}
ferencd@0: 
ferencd@0:     @sa https://docs.python.org/3.6/library/stdtypes.html#dict.update
ferencd@0: 
ferencd@0:     @since version 3.0.0
ferencd@0:     */
ferencd@0:     void update(const_iterator first, const_iterator last)
ferencd@0:     {
ferencd@0:         // implicitly convert null value to an empty object
ferencd@0:         if (is_null())
ferencd@0:         {
ferencd@0:             m_type = value_t::object;
ferencd@0:             m_value.object = create<object_t>();
ferencd@0:             assert_invariant();
ferencd@0:         }
ferencd@0: 
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not is_object()))
ferencd@0:         {
ferencd@0:             JSON_THROW(type_error::create(312, "cannot use update() with " + std::string(type_name())));
ferencd@0:         }
ferencd@0: 
ferencd@0:         // check if range iterators belong to the same JSON object
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(first.m_object != last.m_object))
ferencd@0:         {
ferencd@0:             JSON_THROW(invalid_iterator::create(210, "iterators do not fit"));
ferencd@0:         }
ferencd@0: 
ferencd@0:         // passed iterators must belong to objects
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not first.m_object->is_object()
ferencd@0:                                  or not last.m_object->is_object()))
ferencd@0:         {
ferencd@0:             JSON_THROW(invalid_iterator::create(202, "iterators first and last must point to objects"));
ferencd@0:         }
ferencd@0: 
ferencd@0:         for (auto it = first; it != last; ++it)
ferencd@0:         {
ferencd@0:             m_value.object->operator[](it.key()) = it.value();
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief exchanges the values
ferencd@0: 
ferencd@0:     Exchanges the contents of the JSON value with those of @a other. Does not
ferencd@0:     invoke any move, copy, or swap operations on individual elements. All
ferencd@0:     iterators and references remain valid. The past-the-end iterator is
ferencd@0:     invalidated.
ferencd@0: 
ferencd@0:     @param[in,out] other JSON value to exchange the contents with
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @liveexample{The example below shows how JSON values can be swapped with
ferencd@0:     `swap()`.,swap__reference}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     void swap(reference other) noexcept (
ferencd@0:         std::is_nothrow_move_constructible<value_t>::value and
ferencd@0:         std::is_nothrow_move_assignable<value_t>::value and
ferencd@0:         std::is_nothrow_move_constructible<json_value>::value and
ferencd@0:         std::is_nothrow_move_assignable<json_value>::value
ferencd@0:     )
ferencd@0:     {
ferencd@0:         std::swap(m_type, other.m_type);
ferencd@0:         std::swap(m_value, other.m_value);
ferencd@0:         assert_invariant();
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief exchanges the values
ferencd@0: 
ferencd@0:     Exchanges the contents of a JSON array with those of @a other. Does not
ferencd@0:     invoke any move, copy, or swap operations on individual elements. All
ferencd@0:     iterators and references remain valid. The past-the-end iterator is
ferencd@0:     invalidated.
ferencd@0: 
ferencd@0:     @param[in,out] other array to exchange the contents with
ferencd@0: 
ferencd@0:     @throw type_error.310 when JSON value is not an array; example: `"cannot
ferencd@0:     use swap() with string"`
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @liveexample{The example below shows how arrays can be swapped with
ferencd@0:     `swap()`.,swap__array_t}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     void swap(array_t& other)
ferencd@0:     {
ferencd@0:         // swap only works for arrays
ferencd@0:         if (JSON_HEDLEY_LIKELY(is_array()))
ferencd@0:         {
ferencd@0:             std::swap(*(m_value.array), other);
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name())));
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief exchanges the values
ferencd@0: 
ferencd@0:     Exchanges the contents of a JSON object with those of @a other. Does not
ferencd@0:     invoke any move, copy, or swap operations on individual elements. All
ferencd@0:     iterators and references remain valid. The past-the-end iterator is
ferencd@0:     invalidated.
ferencd@0: 
ferencd@0:     @param[in,out] other object to exchange the contents with
ferencd@0: 
ferencd@0:     @throw type_error.310 when JSON value is not an object; example:
ferencd@0:     `"cannot use swap() with string"`
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @liveexample{The example below shows how objects can be swapped with
ferencd@0:     `swap()`.,swap__object_t}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     void swap(object_t& other)
ferencd@0:     {
ferencd@0:         // swap only works for objects
ferencd@0:         if (JSON_HEDLEY_LIKELY(is_object()))
ferencd@0:         {
ferencd@0:             std::swap(*(m_value.object), other);
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name())));
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief exchanges the values
ferencd@0: 
ferencd@0:     Exchanges the contents of a JSON string with those of @a other. Does not
ferencd@0:     invoke any move, copy, or swap operations on individual elements. All
ferencd@0:     iterators and references remain valid. The past-the-end iterator is
ferencd@0:     invalidated.
ferencd@0: 
ferencd@0:     @param[in,out] other string to exchange the contents with
ferencd@0: 
ferencd@0:     @throw type_error.310 when JSON value is not a string; example: `"cannot
ferencd@0:     use swap() with boolean"`
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @liveexample{The example below shows how strings can be swapped with
ferencd@0:     `swap()`.,swap__string_t}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     void swap(string_t& other)
ferencd@0:     {
ferencd@0:         // swap only works for strings
ferencd@0:         if (JSON_HEDLEY_LIKELY(is_string()))
ferencd@0:         {
ferencd@0:             std::swap(*(m_value.string), other);
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             JSON_THROW(type_error::create(310, "cannot use swap() with " + std::string(type_name())));
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// @}
ferencd@0: 
ferencd@0:   public:
ferencd@0:     //////////////////////////////////////////
ferencd@0:     // lexicographical comparison operators //
ferencd@0:     //////////////////////////////////////////
ferencd@0: 
ferencd@0:     /// @name lexicographical comparison operators
ferencd@0:     /// @{
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief comparison: equal
ferencd@0: 
ferencd@0:     Compares two JSON values for equality according to the following rules:
ferencd@0:     - Two JSON values are equal if (1) they are from the same type and (2)
ferencd@0:       their stored values are the same according to their respective
ferencd@0:       `operator==`.
ferencd@0:     - Integer and floating-point numbers are automatically converted before
ferencd@0:       comparison. Note than two NaN values are always treated as unequal.
ferencd@0:     - Two JSON null values are equal.
ferencd@0: 
ferencd@0:     @note Floating-point inside JSON values numbers are compared with
ferencd@0:     `json::number_float_t::operator==` which is `double::operator==` by
ferencd@0:     default. To compare floating-point while respecting an epsilon, an alternative
ferencd@0:     [comparison function](https://github.com/mariokonrad/marnav/blob/master/src/marnav/math/floatingpoint.hpp#L34-#L39)
ferencd@0:     could be used, for instance
ferencd@0:     @code {.cpp}
ferencd@0:     template<typename T, typename = typename std::enable_if<std::is_floating_point<T>::value, T>::type>
ferencd@0:     inline bool is_same(T a, T b, T epsilon = std::numeric_limits<T>::epsilon()) noexcept
ferencd@0:     {
ferencd@0:         return std::abs(a - b) <= epsilon;
ferencd@0:     }
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     @note NaN values never compare equal to themselves or to other NaN values.
ferencd@0: 
ferencd@0:     @param[in] lhs  first JSON value to consider
ferencd@0:     @param[in] rhs  second JSON value to consider
ferencd@0:     @return whether the values @a lhs and @a rhs are equal
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this function never throws exceptions.
ferencd@0: 
ferencd@0:     @complexity Linear.
ferencd@0: 
ferencd@0:     @liveexample{The example demonstrates comparing several JSON
ferencd@0:     types.,operator__equal}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     friend bool operator==(const_reference lhs, const_reference rhs) noexcept
ferencd@0:     {
ferencd@0:         const auto lhs_type = lhs.type();
ferencd@0:         const auto rhs_type = rhs.type();
ferencd@0: 
ferencd@0:         if (lhs_type == rhs_type)
ferencd@0:         {
ferencd@0:             switch (lhs_type)
ferencd@0:             {
ferencd@0:                 case value_t::array:
ferencd@0:                     return *lhs.m_value.array == *rhs.m_value.array;
ferencd@0: 
ferencd@0:                 case value_t::object:
ferencd@0:                     return *lhs.m_value.object == *rhs.m_value.object;
ferencd@0: 
ferencd@0:                 case value_t::null:
ferencd@0:                     return true;
ferencd@0: 
ferencd@0:                 case value_t::string:
ferencd@0:                     return *lhs.m_value.string == *rhs.m_value.string;
ferencd@0: 
ferencd@0:                 case value_t::boolean:
ferencd@0:                     return lhs.m_value.boolean == rhs.m_value.boolean;
ferencd@0: 
ferencd@0:                 case value_t::number_integer:
ferencd@0:                     return lhs.m_value.number_integer == rhs.m_value.number_integer;
ferencd@0: 
ferencd@0:                 case value_t::number_unsigned:
ferencd@0:                     return lhs.m_value.number_unsigned == rhs.m_value.number_unsigned;
ferencd@0: 
ferencd@0:                 case value_t::number_float:
ferencd@0:                     return lhs.m_value.number_float == rhs.m_value.number_float;
ferencd@0: 
ferencd@0:                 default:
ferencd@0:                     return false;
ferencd@0:             }
ferencd@0:         }
ferencd@0:         else if (lhs_type == value_t::number_integer and rhs_type == value_t::number_float)
ferencd@0:         {
ferencd@0:             return static_cast<number_float_t>(lhs.m_value.number_integer) == rhs.m_value.number_float;
ferencd@0:         }
ferencd@0:         else if (lhs_type == value_t::number_float and rhs_type == value_t::number_integer)
ferencd@0:         {
ferencd@0:             return lhs.m_value.number_float == static_cast<number_float_t>(rhs.m_value.number_integer);
ferencd@0:         }
ferencd@0:         else if (lhs_type == value_t::number_unsigned and rhs_type == value_t::number_float)
ferencd@0:         {
ferencd@0:             return static_cast<number_float_t>(lhs.m_value.number_unsigned) == rhs.m_value.number_float;
ferencd@0:         }
ferencd@0:         else if (lhs_type == value_t::number_float and rhs_type == value_t::number_unsigned)
ferencd@0:         {
ferencd@0:             return lhs.m_value.number_float == static_cast<number_float_t>(rhs.m_value.number_unsigned);
ferencd@0:         }
ferencd@0:         else if (lhs_type == value_t::number_unsigned and rhs_type == value_t::number_integer)
ferencd@0:         {
ferencd@0:             return static_cast<number_integer_t>(lhs.m_value.number_unsigned) == rhs.m_value.number_integer;
ferencd@0:         }
ferencd@0:         else if (lhs_type == value_t::number_integer and rhs_type == value_t::number_unsigned)
ferencd@0:         {
ferencd@0:             return lhs.m_value.number_integer == static_cast<number_integer_t>(rhs.m_value.number_unsigned);
ferencd@0:         }
ferencd@0: 
ferencd@0:         return false;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief comparison: equal
ferencd@0:     @copydoc operator==(const_reference, const_reference)
ferencd@0:     */
ferencd@0:     template<typename ScalarType, typename std::enable_if<
ferencd@0:                  std::is_scalar<ScalarType>::value, int>::type = 0>
ferencd@0:     friend bool operator==(const_reference lhs, const ScalarType rhs) noexcept
ferencd@0:     {
ferencd@0:         return lhs == basic_json(rhs);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief comparison: equal
ferencd@0:     @copydoc operator==(const_reference, const_reference)
ferencd@0:     */
ferencd@0:     template<typename ScalarType, typename std::enable_if<
ferencd@0:                  std::is_scalar<ScalarType>::value, int>::type = 0>
ferencd@0:     friend bool operator==(const ScalarType lhs, const_reference rhs) noexcept
ferencd@0:     {
ferencd@0:         return basic_json(lhs) == rhs;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief comparison: not equal
ferencd@0: 
ferencd@0:     Compares two JSON values for inequality by calculating `not (lhs == rhs)`.
ferencd@0: 
ferencd@0:     @param[in] lhs  first JSON value to consider
ferencd@0:     @param[in] rhs  second JSON value to consider
ferencd@0:     @return whether the values @a lhs and @a rhs are not equal
ferencd@0: 
ferencd@0:     @complexity Linear.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this function never throws exceptions.
ferencd@0: 
ferencd@0:     @liveexample{The example demonstrates comparing several JSON
ferencd@0:     types.,operator__notequal}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     friend bool operator!=(const_reference lhs, const_reference rhs) noexcept
ferencd@0:     {
ferencd@0:         return not (lhs == rhs);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief comparison: not equal
ferencd@0:     @copydoc operator!=(const_reference, const_reference)
ferencd@0:     */
ferencd@0:     template<typename ScalarType, typename std::enable_if<
ferencd@0:                  std::is_scalar<ScalarType>::value, int>::type = 0>
ferencd@0:     friend bool operator!=(const_reference lhs, const ScalarType rhs) noexcept
ferencd@0:     {
ferencd@0:         return lhs != basic_json(rhs);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief comparison: not equal
ferencd@0:     @copydoc operator!=(const_reference, const_reference)
ferencd@0:     */
ferencd@0:     template<typename ScalarType, typename std::enable_if<
ferencd@0:                  std::is_scalar<ScalarType>::value, int>::type = 0>
ferencd@0:     friend bool operator!=(const ScalarType lhs, const_reference rhs) noexcept
ferencd@0:     {
ferencd@0:         return basic_json(lhs) != rhs;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief comparison: less than
ferencd@0: 
ferencd@0:     Compares whether one JSON value @a lhs is less than another JSON value @a
ferencd@0:     rhs according to the following rules:
ferencd@0:     - If @a lhs and @a rhs have the same type, the values are compared using
ferencd@0:       the default `<` operator.
ferencd@0:     - Integer and floating-point numbers are automatically converted before
ferencd@0:       comparison
ferencd@0:     - In case @a lhs and @a rhs have different types, the values are ignored
ferencd@0:       and the order of the types is considered, see
ferencd@0:       @ref operator<(const value_t, const value_t).
ferencd@0: 
ferencd@0:     @param[in] lhs  first JSON value to consider
ferencd@0:     @param[in] rhs  second JSON value to consider
ferencd@0:     @return whether @a lhs is less than @a rhs
ferencd@0: 
ferencd@0:     @complexity Linear.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this function never throws exceptions.
ferencd@0: 
ferencd@0:     @liveexample{The example demonstrates comparing several JSON
ferencd@0:     types.,operator__less}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     friend bool operator<(const_reference lhs, const_reference rhs) noexcept
ferencd@0:     {
ferencd@0:         const auto lhs_type = lhs.type();
ferencd@0:         const auto rhs_type = rhs.type();
ferencd@0: 
ferencd@0:         if (lhs_type == rhs_type)
ferencd@0:         {
ferencd@0:             switch (lhs_type)
ferencd@0:             {
ferencd@0:                 case value_t::array:
ferencd@0:                     // note parentheses are necessary, see
ferencd@0:                     // https://github.com/nlohmann/json/issues/1530
ferencd@0:                     return (*lhs.m_value.array) < (*rhs.m_value.array);
ferencd@0: 
ferencd@0:                 case value_t::object:
ferencd@0:                     return (*lhs.m_value.object) < (*rhs.m_value.object);
ferencd@0: 
ferencd@0:                 case value_t::null:
ferencd@0:                     return false;
ferencd@0: 
ferencd@0:                 case value_t::string:
ferencd@0:                     return (*lhs.m_value.string) < (*rhs.m_value.string);
ferencd@0: 
ferencd@0:                 case value_t::boolean:
ferencd@0:                     return (lhs.m_value.boolean) < (rhs.m_value.boolean);
ferencd@0: 
ferencd@0:                 case value_t::number_integer:
ferencd@0:                     return (lhs.m_value.number_integer) < (rhs.m_value.number_integer);
ferencd@0: 
ferencd@0:                 case value_t::number_unsigned:
ferencd@0:                     return (lhs.m_value.number_unsigned) < (rhs.m_value.number_unsigned);
ferencd@0: 
ferencd@0:                 case value_t::number_float:
ferencd@0:                     return (lhs.m_value.number_float) < (rhs.m_value.number_float);
ferencd@0: 
ferencd@0:                 default:
ferencd@0:                     return false;
ferencd@0:             }
ferencd@0:         }
ferencd@0:         else if (lhs_type == value_t::number_integer and rhs_type == value_t::number_float)
ferencd@0:         {
ferencd@0:             return static_cast<number_float_t>(lhs.m_value.number_integer) < rhs.m_value.number_float;
ferencd@0:         }
ferencd@0:         else if (lhs_type == value_t::number_float and rhs_type == value_t::number_integer)
ferencd@0:         {
ferencd@0:             return lhs.m_value.number_float < static_cast<number_float_t>(rhs.m_value.number_integer);
ferencd@0:         }
ferencd@0:         else if (lhs_type == value_t::number_unsigned and rhs_type == value_t::number_float)
ferencd@0:         {
ferencd@0:             return static_cast<number_float_t>(lhs.m_value.number_unsigned) < rhs.m_value.number_float;
ferencd@0:         }
ferencd@0:         else if (lhs_type == value_t::number_float and rhs_type == value_t::number_unsigned)
ferencd@0:         {
ferencd@0:             return lhs.m_value.number_float < static_cast<number_float_t>(rhs.m_value.number_unsigned);
ferencd@0:         }
ferencd@0:         else if (lhs_type == value_t::number_integer and rhs_type == value_t::number_unsigned)
ferencd@0:         {
ferencd@0:             return lhs.m_value.number_integer < static_cast<number_integer_t>(rhs.m_value.number_unsigned);
ferencd@0:         }
ferencd@0:         else if (lhs_type == value_t::number_unsigned and rhs_type == value_t::number_integer)
ferencd@0:         {
ferencd@0:             return static_cast<number_integer_t>(lhs.m_value.number_unsigned) < rhs.m_value.number_integer;
ferencd@0:         }
ferencd@0: 
ferencd@0:         // We only reach this line if we cannot compare values. In that case,
ferencd@0:         // we compare types. Note we have to call the operator explicitly,
ferencd@0:         // because MSVC has problems otherwise.
ferencd@0:         return operator<(lhs_type, rhs_type);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief comparison: less than
ferencd@0:     @copydoc operator<(const_reference, const_reference)
ferencd@0:     */
ferencd@0:     template<typename ScalarType, typename std::enable_if<
ferencd@0:                  std::is_scalar<ScalarType>::value, int>::type = 0>
ferencd@0:     friend bool operator<(const_reference lhs, const ScalarType rhs) noexcept
ferencd@0:     {
ferencd@0:         return lhs < basic_json(rhs);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief comparison: less than
ferencd@0:     @copydoc operator<(const_reference, const_reference)
ferencd@0:     */
ferencd@0:     template<typename ScalarType, typename std::enable_if<
ferencd@0:                  std::is_scalar<ScalarType>::value, int>::type = 0>
ferencd@0:     friend bool operator<(const ScalarType lhs, const_reference rhs) noexcept
ferencd@0:     {
ferencd@0:         return basic_json(lhs) < rhs;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief comparison: less than or equal
ferencd@0: 
ferencd@0:     Compares whether one JSON value @a lhs is less than or equal to another
ferencd@0:     JSON value by calculating `not (rhs < lhs)`.
ferencd@0: 
ferencd@0:     @param[in] lhs  first JSON value to consider
ferencd@0:     @param[in] rhs  second JSON value to consider
ferencd@0:     @return whether @a lhs is less than or equal to @a rhs
ferencd@0: 
ferencd@0:     @complexity Linear.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this function never throws exceptions.
ferencd@0: 
ferencd@0:     @liveexample{The example demonstrates comparing several JSON
ferencd@0:     types.,operator__greater}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     friend bool operator<=(const_reference lhs, const_reference rhs) noexcept
ferencd@0:     {
ferencd@0:         return not (rhs < lhs);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief comparison: less than or equal
ferencd@0:     @copydoc operator<=(const_reference, const_reference)
ferencd@0:     */
ferencd@0:     template<typename ScalarType, typename std::enable_if<
ferencd@0:                  std::is_scalar<ScalarType>::value, int>::type = 0>
ferencd@0:     friend bool operator<=(const_reference lhs, const ScalarType rhs) noexcept
ferencd@0:     {
ferencd@0:         return lhs <= basic_json(rhs);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief comparison: less than or equal
ferencd@0:     @copydoc operator<=(const_reference, const_reference)
ferencd@0:     */
ferencd@0:     template<typename ScalarType, typename std::enable_if<
ferencd@0:                  std::is_scalar<ScalarType>::value, int>::type = 0>
ferencd@0:     friend bool operator<=(const ScalarType lhs, const_reference rhs) noexcept
ferencd@0:     {
ferencd@0:         return basic_json(lhs) <= rhs;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief comparison: greater than
ferencd@0: 
ferencd@0:     Compares whether one JSON value @a lhs is greater than another
ferencd@0:     JSON value by calculating `not (lhs <= rhs)`.
ferencd@0: 
ferencd@0:     @param[in] lhs  first JSON value to consider
ferencd@0:     @param[in] rhs  second JSON value to consider
ferencd@0:     @return whether @a lhs is greater than to @a rhs
ferencd@0: 
ferencd@0:     @complexity Linear.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this function never throws exceptions.
ferencd@0: 
ferencd@0:     @liveexample{The example demonstrates comparing several JSON
ferencd@0:     types.,operator__lessequal}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     friend bool operator>(const_reference lhs, const_reference rhs) noexcept
ferencd@0:     {
ferencd@0:         return not (lhs <= rhs);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief comparison: greater than
ferencd@0:     @copydoc operator>(const_reference, const_reference)
ferencd@0:     */
ferencd@0:     template<typename ScalarType, typename std::enable_if<
ferencd@0:                  std::is_scalar<ScalarType>::value, int>::type = 0>
ferencd@0:     friend bool operator>(const_reference lhs, const ScalarType rhs) noexcept
ferencd@0:     {
ferencd@0:         return lhs > basic_json(rhs);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief comparison: greater than
ferencd@0:     @copydoc operator>(const_reference, const_reference)
ferencd@0:     */
ferencd@0:     template<typename ScalarType, typename std::enable_if<
ferencd@0:                  std::is_scalar<ScalarType>::value, int>::type = 0>
ferencd@0:     friend bool operator>(const ScalarType lhs, const_reference rhs) noexcept
ferencd@0:     {
ferencd@0:         return basic_json(lhs) > rhs;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief comparison: greater than or equal
ferencd@0: 
ferencd@0:     Compares whether one JSON value @a lhs is greater than or equal to another
ferencd@0:     JSON value by calculating `not (lhs < rhs)`.
ferencd@0: 
ferencd@0:     @param[in] lhs  first JSON value to consider
ferencd@0:     @param[in] rhs  second JSON value to consider
ferencd@0:     @return whether @a lhs is greater than or equal to @a rhs
ferencd@0: 
ferencd@0:     @complexity Linear.
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this function never throws exceptions.
ferencd@0: 
ferencd@0:     @liveexample{The example demonstrates comparing several JSON
ferencd@0:     types.,operator__greaterequal}
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     friend bool operator>=(const_reference lhs, const_reference rhs) noexcept
ferencd@0:     {
ferencd@0:         return not (lhs < rhs);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief comparison: greater than or equal
ferencd@0:     @copydoc operator>=(const_reference, const_reference)
ferencd@0:     */
ferencd@0:     template<typename ScalarType, typename std::enable_if<
ferencd@0:                  std::is_scalar<ScalarType>::value, int>::type = 0>
ferencd@0:     friend bool operator>=(const_reference lhs, const ScalarType rhs) noexcept
ferencd@0:     {
ferencd@0:         return lhs >= basic_json(rhs);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief comparison: greater than or equal
ferencd@0:     @copydoc operator>=(const_reference, const_reference)
ferencd@0:     */
ferencd@0:     template<typename ScalarType, typename std::enable_if<
ferencd@0:                  std::is_scalar<ScalarType>::value, int>::type = 0>
ferencd@0:     friend bool operator>=(const ScalarType lhs, const_reference rhs) noexcept
ferencd@0:     {
ferencd@0:         return basic_json(lhs) >= rhs;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// @}
ferencd@0: 
ferencd@0:     ///////////////////
ferencd@0:     // serialization //
ferencd@0:     ///////////////////
ferencd@0: 
ferencd@0:     /// @name serialization
ferencd@0:     /// @{
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief serialize to stream
ferencd@0: 
ferencd@0:     Serialize the given JSON value @a j to the output stream @a o. The JSON
ferencd@0:     value will be serialized using the @ref dump member function.
ferencd@0: 
ferencd@0:     - The indentation of the output can be controlled with the member variable
ferencd@0:       `width` of the output stream @a o. For instance, using the manipulator
ferencd@0:       `std::setw(4)` on @a o sets the indentation level to `4` and the
ferencd@0:       serialization result is the same as calling `dump(4)`.
ferencd@0: 
ferencd@0:     - The indentation character can be controlled with the member variable
ferencd@0:       `fill` of the output stream @a o. For instance, the manipulator
ferencd@0:       `std::setfill('\\t')` sets indentation to use a tab character rather than
ferencd@0:       the default space character.
ferencd@0: 
ferencd@0:     @param[in,out] o  stream to serialize to
ferencd@0:     @param[in] j  JSON value to serialize
ferencd@0: 
ferencd@0:     @return the stream @a o
ferencd@0: 
ferencd@0:     @throw type_error.316 if a string stored inside the JSON value is not
ferencd@0:                           UTF-8 encoded
ferencd@0: 
ferencd@0:     @complexity Linear.
ferencd@0: 
ferencd@0:     @liveexample{The example below shows the serialization with different
ferencd@0:     parameters to `width` to adjust the indentation level.,operator_serialize}
ferencd@0: 
ferencd@0:     @since version 1.0.0; indentation character added in version 3.0.0
ferencd@0:     */
ferencd@0:     friend std::ostream& operator<<(std::ostream& o, const basic_json& j)
ferencd@0:     {
ferencd@0:         // read width member and use it as indentation parameter if nonzero
ferencd@0:         const bool pretty_print = o.width() > 0;
ferencd@0:         const auto indentation = pretty_print ? o.width() : 0;
ferencd@0: 
ferencd@0:         // reset width to 0 for subsequent calls to this stream
ferencd@0:         o.width(0);
ferencd@0: 
ferencd@0:         // do the actual serialization
ferencd@0:         serializer s(detail::output_adapter<char>(o), o.fill());
ferencd@0:         s.dump(j, pretty_print, false, static_cast<unsigned int>(indentation));
ferencd@0:         return o;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief serialize to stream
ferencd@0:     @deprecated This stream operator is deprecated and will be removed in
ferencd@0:                 future 4.0.0 of the library. Please use
ferencd@0:                 @ref operator<<(std::ostream&, const basic_json&)
ferencd@0:                 instead; that is, replace calls like `j >> o;` with `o << j;`.
ferencd@0:     @since version 1.0.0; deprecated since version 3.0.0
ferencd@0:     */
ferencd@0:     JSON_HEDLEY_DEPRECATED(3.0.0)
ferencd@0:     friend std::ostream& operator>>(const basic_json& j, std::ostream& o)
ferencd@0:     {
ferencd@0:         return o << j;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// @}
ferencd@0: 
ferencd@0: 
ferencd@0:     /////////////////////
ferencd@0:     // deserialization //
ferencd@0:     /////////////////////
ferencd@0: 
ferencd@0:     /// @name deserialization
ferencd@0:     /// @{
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief deserialize from a compatible input
ferencd@0: 
ferencd@0:     This function reads from a compatible input. Examples are:
ferencd@0:     - an array of 1-byte values
ferencd@0:     - strings with character/literal type with size of 1 byte
ferencd@0:     - input streams
ferencd@0:     - container with contiguous storage of 1-byte values. Compatible container
ferencd@0:       types include `std::vector`, `std::string`, `std::array`,
ferencd@0:       `std::valarray`, and `std::initializer_list`. Furthermore, C-style
ferencd@0:       arrays can be used with `std::begin()`/`std::end()`. User-defined
ferencd@0:       containers can be used as long as they implement random-access iterators
ferencd@0:       and a contiguous storage.
ferencd@0: 
ferencd@0:     @pre Each element of the container has a size of 1 byte. Violating this
ferencd@0:     precondition yields undefined behavior. **This precondition is enforced
ferencd@0:     with a static assertion.**
ferencd@0: 
ferencd@0:     @pre The container storage is contiguous. Violating this precondition
ferencd@0:     yields undefined behavior. **This precondition is enforced with an
ferencd@0:     assertion.**
ferencd@0: 
ferencd@0:     @warning There is no way to enforce all preconditions at compile-time. If
ferencd@0:              the function is called with a noncompliant container and with
ferencd@0:              assertions switched off, the behavior is undefined and will most
ferencd@0:              likely yield segmentation violation.
ferencd@0: 
ferencd@0:     @param[in] i  input to read from
ferencd@0:     @param[in] cb  a parser callback function of type @ref parser_callback_t
ferencd@0:     which is used to control the deserialization by filtering unwanted values
ferencd@0:     (optional)
ferencd@0:     @param[in] allow_exceptions  whether to throw exceptions in case of a
ferencd@0:     parse error (optional, true by default)
ferencd@0: 
ferencd@0:     @return deserialized JSON value; in case of a parse error and
ferencd@0:             @a allow_exceptions set to `false`, the return value will be
ferencd@0:             value_t::discarded.
ferencd@0: 
ferencd@0:     @throw parse_error.101 if a parse error occurs; example: `""unexpected end
ferencd@0:     of input; expected string literal""`
ferencd@0:     @throw parse_error.102 if to_unicode fails or surrogate error
ferencd@0:     @throw parse_error.103 if to_unicode fails
ferencd@0: 
ferencd@0:     @complexity Linear in the length of the input. The parser is a predictive
ferencd@0:     LL(1) parser. The complexity can be higher if the parser callback function
ferencd@0:     @a cb has a super-linear complexity.
ferencd@0: 
ferencd@0:     @note A UTF-8 byte order mark is silently ignored.
ferencd@0: 
ferencd@0:     @liveexample{The example below demonstrates the `parse()` function reading
ferencd@0:     from an array.,parse__array__parser_callback_t}
ferencd@0: 
ferencd@0:     @liveexample{The example below demonstrates the `parse()` function with
ferencd@0:     and without callback function.,parse__string__parser_callback_t}
ferencd@0: 
ferencd@0:     @liveexample{The example below demonstrates the `parse()` function with
ferencd@0:     and without callback function.,parse__istream__parser_callback_t}
ferencd@0: 
ferencd@0:     @liveexample{The example below demonstrates the `parse()` function reading
ferencd@0:     from a contiguous container.,parse__contiguouscontainer__parser_callback_t}
ferencd@0: 
ferencd@0:     @since version 2.0.3 (contiguous containers)
ferencd@0:     */
ferencd@0:     JSON_HEDLEY_WARN_UNUSED_RESULT
ferencd@0:     static basic_json parse(detail::input_adapter&& i,
ferencd@0:                             const parser_callback_t cb = nullptr,
ferencd@0:                             const bool allow_exceptions = true)
ferencd@0:     {
ferencd@0:         basic_json result;
ferencd@0:         parser(i, cb, allow_exceptions).parse(true, result);
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     static bool accept(detail::input_adapter&& i)
ferencd@0:     {
ferencd@0:         return parser(i).accept(true);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief generate SAX events
ferencd@0: 
ferencd@0:     The SAX event lister must follow the interface of @ref json_sax.
ferencd@0: 
ferencd@0:     This function reads from a compatible input. Examples are:
ferencd@0:     - an array of 1-byte values
ferencd@0:     - strings with character/literal type with size of 1 byte
ferencd@0:     - input streams
ferencd@0:     - container with contiguous storage of 1-byte values. Compatible container
ferencd@0:       types include `std::vector`, `std::string`, `std::array`,
ferencd@0:       `std::valarray`, and `std::initializer_list`. Furthermore, C-style
ferencd@0:       arrays can be used with `std::begin()`/`std::end()`. User-defined
ferencd@0:       containers can be used as long as they implement random-access iterators
ferencd@0:       and a contiguous storage.
ferencd@0: 
ferencd@0:     @pre Each element of the container has a size of 1 byte. Violating this
ferencd@0:     precondition yields undefined behavior. **This precondition is enforced
ferencd@0:     with a static assertion.**
ferencd@0: 
ferencd@0:     @pre The container storage is contiguous. Violating this precondition
ferencd@0:     yields undefined behavior. **This precondition is enforced with an
ferencd@0:     assertion.**
ferencd@0: 
ferencd@0:     @warning There is no way to enforce all preconditions at compile-time. If
ferencd@0:              the function is called with a noncompliant container and with
ferencd@0:              assertions switched off, the behavior is undefined and will most
ferencd@0:              likely yield segmentation violation.
ferencd@0: 
ferencd@0:     @param[in] i  input to read from
ferencd@0:     @param[in,out] sax  SAX event listener
ferencd@0:     @param[in] format  the format to parse (JSON, CBOR, MessagePack, or UBJSON)
ferencd@0:     @param[in] strict  whether the input has to be consumed completely
ferencd@0: 
ferencd@0:     @return return value of the last processed SAX event
ferencd@0: 
ferencd@0:     @throw parse_error.101 if a parse error occurs; example: `""unexpected end
ferencd@0:     of input; expected string literal""`
ferencd@0:     @throw parse_error.102 if to_unicode fails or surrogate error
ferencd@0:     @throw parse_error.103 if to_unicode fails
ferencd@0: 
ferencd@0:     @complexity Linear in the length of the input. The parser is a predictive
ferencd@0:     LL(1) parser. The complexity can be higher if the SAX consumer @a sax has
ferencd@0:     a super-linear complexity.
ferencd@0: 
ferencd@0:     @note A UTF-8 byte order mark is silently ignored.
ferencd@0: 
ferencd@0:     @liveexample{The example below demonstrates the `sax_parse()` function
ferencd@0:     reading from string and processing the events with a user-defined SAX
ferencd@0:     event consumer.,sax_parse}
ferencd@0: 
ferencd@0:     @since version 3.2.0
ferencd@0:     */
ferencd@0:     template <typename SAX>
ferencd@0:     JSON_HEDLEY_NON_NULL(2)
ferencd@0:     static bool sax_parse(detail::input_adapter&& i, SAX* sax,
ferencd@0:                           input_format_t format = input_format_t::json,
ferencd@0:                           const bool strict = true)
ferencd@0:     {
ferencd@0:         assert(sax);
ferencd@0:         return format == input_format_t::json
ferencd@0:                ? parser(std::move(i)).sax_parse(sax, strict)
ferencd@0:                : detail::binary_reader<basic_json, SAX>(std::move(i)).sax_parse(format, sax, strict);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief deserialize from an iterator range with contiguous storage
ferencd@0: 
ferencd@0:     This function reads from an iterator range of a container with contiguous
ferencd@0:     storage of 1-byte values. Compatible container types include
ferencd@0:     `std::vector`, `std::string`, `std::array`, `std::valarray`, and
ferencd@0:     `std::initializer_list`. Furthermore, C-style arrays can be used with
ferencd@0:     `std::begin()`/`std::end()`. User-defined containers can be used as long
ferencd@0:     as they implement random-access iterators and a contiguous storage.
ferencd@0: 
ferencd@0:     @pre The iterator range is contiguous. Violating this precondition yields
ferencd@0:     undefined behavior. **This precondition is enforced with an assertion.**
ferencd@0:     @pre Each element in the range has a size of 1 byte. Violating this
ferencd@0:     precondition yields undefined behavior. **This precondition is enforced
ferencd@0:     with a static assertion.**
ferencd@0: 
ferencd@0:     @warning There is no way to enforce all preconditions at compile-time. If
ferencd@0:              the function is called with noncompliant iterators and with
ferencd@0:              assertions switched off, the behavior is undefined and will most
ferencd@0:              likely yield segmentation violation.
ferencd@0: 
ferencd@0:     @tparam IteratorType iterator of container with contiguous storage
ferencd@0:     @param[in] first  begin of the range to parse (included)
ferencd@0:     @param[in] last  end of the range to parse (excluded)
ferencd@0:     @param[in] cb  a parser callback function of type @ref parser_callback_t
ferencd@0:     which is used to control the deserialization by filtering unwanted values
ferencd@0:     (optional)
ferencd@0:     @param[in] allow_exceptions  whether to throw exceptions in case of a
ferencd@0:     parse error (optional, true by default)
ferencd@0: 
ferencd@0:     @return deserialized JSON value; in case of a parse error and
ferencd@0:             @a allow_exceptions set to `false`, the return value will be
ferencd@0:             value_t::discarded.
ferencd@0: 
ferencd@0:     @throw parse_error.101 in case of an unexpected token
ferencd@0:     @throw parse_error.102 if to_unicode fails or surrogate error
ferencd@0:     @throw parse_error.103 if to_unicode fails
ferencd@0: 
ferencd@0:     @complexity Linear in the length of the input. The parser is a predictive
ferencd@0:     LL(1) parser. The complexity can be higher if the parser callback function
ferencd@0:     @a cb has a super-linear complexity.
ferencd@0: 
ferencd@0:     @note A UTF-8 byte order mark is silently ignored.
ferencd@0: 
ferencd@0:     @liveexample{The example below demonstrates the `parse()` function reading
ferencd@0:     from an iterator range.,parse__iteratortype__parser_callback_t}
ferencd@0: 
ferencd@0:     @since version 2.0.3
ferencd@0:     */
ferencd@0:     template<class IteratorType, typename std::enable_if<
ferencd@0:                  std::is_base_of<
ferencd@0:                      std::random_access_iterator_tag,
ferencd@0:                      typename std::iterator_traits<IteratorType>::iterator_category>::value, int>::type = 0>
ferencd@0:     static basic_json parse(IteratorType first, IteratorType last,
ferencd@0:                             const parser_callback_t cb = nullptr,
ferencd@0:                             const bool allow_exceptions = true)
ferencd@0:     {
ferencd@0:         basic_json result;
ferencd@0:         parser(detail::input_adapter(first, last), cb, allow_exceptions).parse(true, result);
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     template<class IteratorType, typename std::enable_if<
ferencd@0:                  std::is_base_of<
ferencd@0:                      std::random_access_iterator_tag,
ferencd@0:                      typename std::iterator_traits<IteratorType>::iterator_category>::value, int>::type = 0>
ferencd@0:     static bool accept(IteratorType first, IteratorType last)
ferencd@0:     {
ferencd@0:         return parser(detail::input_adapter(first, last)).accept(true);
ferencd@0:     }
ferencd@0: 
ferencd@0:     template<class IteratorType, class SAX, typename std::enable_if<
ferencd@0:                  std::is_base_of<
ferencd@0:                      std::random_access_iterator_tag,
ferencd@0:                      typename std::iterator_traits<IteratorType>::iterator_category>::value, int>::type = 0>
ferencd@0:     JSON_HEDLEY_NON_NULL(3)
ferencd@0:     static bool sax_parse(IteratorType first, IteratorType last, SAX* sax)
ferencd@0:     {
ferencd@0:         return parser(detail::input_adapter(first, last)).sax_parse(sax);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief deserialize from stream
ferencd@0:     @deprecated This stream operator is deprecated and will be removed in
ferencd@0:                 version 4.0.0 of the library. Please use
ferencd@0:                 @ref operator>>(std::istream&, basic_json&)
ferencd@0:                 instead; that is, replace calls like `j << i;` with `i >> j;`.
ferencd@0:     @since version 1.0.0; deprecated since version 3.0.0
ferencd@0:     */
ferencd@0:     JSON_HEDLEY_DEPRECATED(3.0.0)
ferencd@0:     friend std::istream& operator<<(basic_json& j, std::istream& i)
ferencd@0:     {
ferencd@0:         return operator>>(i, j);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief deserialize from stream
ferencd@0: 
ferencd@0:     Deserializes an input stream to a JSON value.
ferencd@0: 
ferencd@0:     @param[in,out] i  input stream to read a serialized JSON value from
ferencd@0:     @param[in,out] j  JSON value to write the deserialized input to
ferencd@0: 
ferencd@0:     @throw parse_error.101 in case of an unexpected token
ferencd@0:     @throw parse_error.102 if to_unicode fails or surrogate error
ferencd@0:     @throw parse_error.103 if to_unicode fails
ferencd@0: 
ferencd@0:     @complexity Linear in the length of the input. The parser is a predictive
ferencd@0:     LL(1) parser.
ferencd@0: 
ferencd@0:     @note A UTF-8 byte order mark is silently ignored.
ferencd@0: 
ferencd@0:     @liveexample{The example below shows how a JSON value is constructed by
ferencd@0:     reading a serialization from a stream.,operator_deserialize}
ferencd@0: 
ferencd@0:     @sa parse(std::istream&, const parser_callback_t) for a variant with a
ferencd@0:     parser callback function to filter values while parsing
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     friend std::istream& operator>>(std::istream& i, basic_json& j)
ferencd@0:     {
ferencd@0:         parser(detail::input_adapter(i)).parse(false, j);
ferencd@0:         return i;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// @}
ferencd@0: 
ferencd@0:     ///////////////////////////
ferencd@0:     // convenience functions //
ferencd@0:     ///////////////////////////
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief return the type as string
ferencd@0: 
ferencd@0:     Returns the type name as string to be used in error messages - usually to
ferencd@0:     indicate that a function was called on a wrong JSON type.
ferencd@0: 
ferencd@0:     @return a string representation of a the @a m_type member:
ferencd@0:             Value type  | return value
ferencd@0:             ----------- | -------------
ferencd@0:             null        | `"null"`
ferencd@0:             boolean     | `"boolean"`
ferencd@0:             string      | `"string"`
ferencd@0:             number      | `"number"` (for all number types)
ferencd@0:             object      | `"object"`
ferencd@0:             array       | `"array"`
ferencd@0:             discarded   | `"discarded"`
ferencd@0: 
ferencd@0:     @exceptionsafety No-throw guarantee: this function never throws exceptions.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @liveexample{The following code exemplifies `type_name()` for all JSON
ferencd@0:     types.,type_name}
ferencd@0: 
ferencd@0:     @sa @ref type() -- return the type of the JSON value
ferencd@0:     @sa @ref operator value_t() -- return the type of the JSON value (implicit)
ferencd@0: 
ferencd@0:     @since version 1.0.0, public since 2.1.0, `const char*` and `noexcept`
ferencd@0:     since 3.0.0
ferencd@0:     */
ferencd@0:     JSON_HEDLEY_RETURNS_NON_NULL
ferencd@0:     const char* type_name() const noexcept
ferencd@0:     {
ferencd@0:         {
ferencd@0:             switch (m_type)
ferencd@0:             {
ferencd@0:                 case value_t::null:
ferencd@0:                     return "null";
ferencd@0:                 case value_t::object:
ferencd@0:                     return "object";
ferencd@0:                 case value_t::array:
ferencd@0:                     return "array";
ferencd@0:                 case value_t::string:
ferencd@0:                     return "string";
ferencd@0:                 case value_t::boolean:
ferencd@0:                     return "boolean";
ferencd@0:                 case value_t::discarded:
ferencd@0:                     return "discarded";
ferencd@0:                 default:
ferencd@0:                     return "number";
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0: 
ferencd@0:   private:
ferencd@0:     //////////////////////
ferencd@0:     // member variables //
ferencd@0:     //////////////////////
ferencd@0: 
ferencd@0:     /// the type of the current element
ferencd@0:     value_t m_type = value_t::null;
ferencd@0: 
ferencd@0:     /// the value of the current element
ferencd@0:     json_value m_value = {};
ferencd@0: 
ferencd@0:     //////////////////////////////////////////
ferencd@0:     // binary serialization/deserialization //
ferencd@0:     //////////////////////////////////////////
ferencd@0: 
ferencd@0:     /// @name binary serialization/deserialization support
ferencd@0:     /// @{
ferencd@0: 
ferencd@0:   public:
ferencd@0:     /*!
ferencd@0:     @brief create a CBOR serialization of a given JSON value
ferencd@0: 
ferencd@0:     Serializes a given JSON value @a j to a byte vector using the CBOR (Concise
ferencd@0:     Binary Object Representation) serialization format. CBOR is a binary
ferencd@0:     serialization format which aims to be more compact than JSON itself, yet
ferencd@0:     more efficient to parse.
ferencd@0: 
ferencd@0:     The library uses the following mapping from JSON values types to
ferencd@0:     CBOR types according to the CBOR specification (RFC 7049):
ferencd@0: 
ferencd@0:     JSON value type | value/range                                | CBOR type                          | first byte
ferencd@0:     --------------- | ------------------------------------------ | ---------------------------------- | ---------------
ferencd@0:     null            | `null`                                     | Null                               | 0xF6
ferencd@0:     boolean         | `true`                                     | True                               | 0xF5
ferencd@0:     boolean         | `false`                                    | False                              | 0xF4
ferencd@0:     number_integer  | -9223372036854775808..-2147483649          | Negative integer (8 bytes follow)  | 0x3B
ferencd@0:     number_integer  | -2147483648..-32769                        | Negative integer (4 bytes follow)  | 0x3A
ferencd@0:     number_integer  | -32768..-129                               | Negative integer (2 bytes follow)  | 0x39
ferencd@0:     number_integer  | -128..-25                                  | Negative integer (1 byte follow)   | 0x38
ferencd@0:     number_integer  | -24..-1                                    | Negative integer                   | 0x20..0x37
ferencd@0:     number_integer  | 0..23                                      | Integer                            | 0x00..0x17
ferencd@0:     number_integer  | 24..255                                    | Unsigned integer (1 byte follow)   | 0x18
ferencd@0:     number_integer  | 256..65535                                 | Unsigned integer (2 bytes follow)  | 0x19
ferencd@0:     number_integer  | 65536..4294967295                          | Unsigned integer (4 bytes follow)  | 0x1A
ferencd@0:     number_integer  | 4294967296..18446744073709551615           | Unsigned integer (8 bytes follow)  | 0x1B
ferencd@0:     number_unsigned | 0..23                                      | Integer                            | 0x00..0x17
ferencd@0:     number_unsigned | 24..255                                    | Unsigned integer (1 byte follow)   | 0x18
ferencd@0:     number_unsigned | 256..65535                                 | Unsigned integer (2 bytes follow)  | 0x19
ferencd@0:     number_unsigned | 65536..4294967295                          | Unsigned integer (4 bytes follow)  | 0x1A
ferencd@0:     number_unsigned | 4294967296..18446744073709551615           | Unsigned integer (8 bytes follow)  | 0x1B
ferencd@0:     number_float    | *any value*                                | Double-Precision Float             | 0xFB
ferencd@0:     string          | *length*: 0..23                            | UTF-8 string                       | 0x60..0x77
ferencd@0:     string          | *length*: 23..255                          | UTF-8 string (1 byte follow)       | 0x78
ferencd@0:     string          | *length*: 256..65535                       | UTF-8 string (2 bytes follow)      | 0x79
ferencd@0:     string          | *length*: 65536..4294967295                | UTF-8 string (4 bytes follow)      | 0x7A
ferencd@0:     string          | *length*: 4294967296..18446744073709551615 | UTF-8 string (8 bytes follow)      | 0x7B
ferencd@0:     array           | *size*: 0..23                              | array                              | 0x80..0x97
ferencd@0:     array           | *size*: 23..255                            | array (1 byte follow)              | 0x98
ferencd@0:     array           | *size*: 256..65535                         | array (2 bytes follow)             | 0x99
ferencd@0:     array           | *size*: 65536..4294967295                  | array (4 bytes follow)             | 0x9A
ferencd@0:     array           | *size*: 4294967296..18446744073709551615   | array (8 bytes follow)             | 0x9B
ferencd@0:     object          | *size*: 0..23                              | map                                | 0xA0..0xB7
ferencd@0:     object          | *size*: 23..255                            | map (1 byte follow)                | 0xB8
ferencd@0:     object          | *size*: 256..65535                         | map (2 bytes follow)               | 0xB9
ferencd@0:     object          | *size*: 65536..4294967295                  | map (4 bytes follow)               | 0xBA
ferencd@0:     object          | *size*: 4294967296..18446744073709551615   | map (8 bytes follow)               | 0xBB
ferencd@0: 
ferencd@0:     @note The mapping is **complete** in the sense that any JSON value type
ferencd@0:           can be converted to a CBOR value.
ferencd@0: 
ferencd@0:     @note If NaN or Infinity are stored inside a JSON number, they are
ferencd@0:           serialized properly. This behavior differs from the @ref dump()
ferencd@0:           function which serializes NaN or Infinity to `null`.
ferencd@0: 
ferencd@0:     @note The following CBOR types are not used in the conversion:
ferencd@0:           - byte strings (0x40..0x5F)
ferencd@0:           - UTF-8 strings terminated by "break" (0x7F)
ferencd@0:           - arrays terminated by "break" (0x9F)
ferencd@0:           - maps terminated by "break" (0xBF)
ferencd@0:           - date/time (0xC0..0xC1)
ferencd@0:           - bignum (0xC2..0xC3)
ferencd@0:           - decimal fraction (0xC4)
ferencd@0:           - bigfloat (0xC5)
ferencd@0:           - tagged items (0xC6..0xD4, 0xD8..0xDB)
ferencd@0:           - expected conversions (0xD5..0xD7)
ferencd@0:           - simple values (0xE0..0xF3, 0xF8)
ferencd@0:           - undefined (0xF7)
ferencd@0:           - half and single-precision floats (0xF9-0xFA)
ferencd@0:           - break (0xFF)
ferencd@0: 
ferencd@0:     @param[in] j  JSON value to serialize
ferencd@0:     @return MessagePack serialization as byte vector
ferencd@0: 
ferencd@0:     @complexity Linear in the size of the JSON value @a j.
ferencd@0: 
ferencd@0:     @liveexample{The example shows the serialization of a JSON value to a byte
ferencd@0:     vector in CBOR format.,to_cbor}
ferencd@0: 
ferencd@0:     @sa http://cbor.io
ferencd@0:     @sa @ref from_cbor(detail::input_adapter&&, const bool, const bool) for the
ferencd@0:         analogous deserialization
ferencd@0:     @sa @ref to_msgpack(const basic_json&) for the related MessagePack format
ferencd@0:     @sa @ref to_ubjson(const basic_json&, const bool, const bool) for the
ferencd@0:              related UBJSON format
ferencd@0: 
ferencd@0:     @since version 2.0.9
ferencd@0:     */
ferencd@0:     static std::vector<uint8_t> to_cbor(const basic_json& j)
ferencd@0:     {
ferencd@0:         std::vector<uint8_t> result;
ferencd@0:         to_cbor(j, result);
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     static void to_cbor(const basic_json& j, detail::output_adapter<uint8_t> o)
ferencd@0:     {
ferencd@0:         binary_writer<uint8_t>(o).write_cbor(j);
ferencd@0:     }
ferencd@0: 
ferencd@0:     static void to_cbor(const basic_json& j, detail::output_adapter<char> o)
ferencd@0:     {
ferencd@0:         binary_writer<char>(o).write_cbor(j);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief create a MessagePack serialization of a given JSON value
ferencd@0: 
ferencd@0:     Serializes a given JSON value @a j to a byte vector using the MessagePack
ferencd@0:     serialization format. MessagePack is a binary serialization format which
ferencd@0:     aims to be more compact than JSON itself, yet more efficient to parse.
ferencd@0: 
ferencd@0:     The library uses the following mapping from JSON values types to
ferencd@0:     MessagePack types according to the MessagePack specification:
ferencd@0: 
ferencd@0:     JSON value type | value/range                       | MessagePack type | first byte
ferencd@0:     --------------- | --------------------------------- | ---------------- | ----------
ferencd@0:     null            | `null`                            | nil              | 0xC0
ferencd@0:     boolean         | `true`                            | true             | 0xC3
ferencd@0:     boolean         | `false`                           | false            | 0xC2
ferencd@0:     number_integer  | -9223372036854775808..-2147483649 | int64            | 0xD3
ferencd@0:     number_integer  | -2147483648..-32769               | int32            | 0xD2
ferencd@0:     number_integer  | -32768..-129                      | int16            | 0xD1
ferencd@0:     number_integer  | -128..-33                         | int8             | 0xD0
ferencd@0:     number_integer  | -32..-1                           | negative fixint  | 0xE0..0xFF
ferencd@0:     number_integer  | 0..127                            | positive fixint  | 0x00..0x7F
ferencd@0:     number_integer  | 128..255                          | uint 8           | 0xCC
ferencd@0:     number_integer  | 256..65535                        | uint 16          | 0xCD
ferencd@0:     number_integer  | 65536..4294967295                 | uint 32          | 0xCE
ferencd@0:     number_integer  | 4294967296..18446744073709551615  | uint 64          | 0xCF
ferencd@0:     number_unsigned | 0..127                            | positive fixint  | 0x00..0x7F
ferencd@0:     number_unsigned | 128..255                          | uint 8           | 0xCC
ferencd@0:     number_unsigned | 256..65535                        | uint 16          | 0xCD
ferencd@0:     number_unsigned | 65536..4294967295                 | uint 32          | 0xCE
ferencd@0:     number_unsigned | 4294967296..18446744073709551615  | uint 64          | 0xCF
ferencd@0:     number_float    | *any value*                       | float 64         | 0xCB
ferencd@0:     string          | *length*: 0..31                   | fixstr           | 0xA0..0xBF
ferencd@0:     string          | *length*: 32..255                 | str 8            | 0xD9
ferencd@0:     string          | *length*: 256..65535              | str 16           | 0xDA
ferencd@0:     string          | *length*: 65536..4294967295       | str 32           | 0xDB
ferencd@0:     array           | *size*: 0..15                     | fixarray         | 0x90..0x9F
ferencd@0:     array           | *size*: 16..65535                 | array 16         | 0xDC
ferencd@0:     array           | *size*: 65536..4294967295         | array 32         | 0xDD
ferencd@0:     object          | *size*: 0..15                     | fix map          | 0x80..0x8F
ferencd@0:     object          | *size*: 16..65535                 | map 16           | 0xDE
ferencd@0:     object          | *size*: 65536..4294967295         | map 32           | 0xDF
ferencd@0: 
ferencd@0:     @note The mapping is **complete** in the sense that any JSON value type
ferencd@0:           can be converted to a MessagePack value.
ferencd@0: 
ferencd@0:     @note The following values can **not** be converted to a MessagePack value:
ferencd@0:           - strings with more than 4294967295 bytes
ferencd@0:           - arrays with more than 4294967295 elements
ferencd@0:           - objects with more than 4294967295 elements
ferencd@0: 
ferencd@0:     @note The following MessagePack types are not used in the conversion:
ferencd@0:           - bin 8 - bin 32 (0xC4..0xC6)
ferencd@0:           - ext 8 - ext 32 (0xC7..0xC9)
ferencd@0:           - float 32 (0xCA)
ferencd@0:           - fixext 1 - fixext 16 (0xD4..0xD8)
ferencd@0: 
ferencd@0:     @note Any MessagePack output created @ref to_msgpack can be successfully
ferencd@0:           parsed by @ref from_msgpack.
ferencd@0: 
ferencd@0:     @note If NaN or Infinity are stored inside a JSON number, they are
ferencd@0:           serialized properly. This behavior differs from the @ref dump()
ferencd@0:           function which serializes NaN or Infinity to `null`.
ferencd@0: 
ferencd@0:     @param[in] j  JSON value to serialize
ferencd@0:     @return MessagePack serialization as byte vector
ferencd@0: 
ferencd@0:     @complexity Linear in the size of the JSON value @a j.
ferencd@0: 
ferencd@0:     @liveexample{The example shows the serialization of a JSON value to a byte
ferencd@0:     vector in MessagePack format.,to_msgpack}
ferencd@0: 
ferencd@0:     @sa http://msgpack.org
ferencd@0:     @sa @ref from_msgpack for the analogous deserialization
ferencd@0:     @sa @ref to_cbor(const basic_json& for the related CBOR format
ferencd@0:     @sa @ref to_ubjson(const basic_json&, const bool, const bool) for the
ferencd@0:              related UBJSON format
ferencd@0: 
ferencd@0:     @since version 2.0.9
ferencd@0:     */
ferencd@0:     static std::vector<uint8_t> to_msgpack(const basic_json& j)
ferencd@0:     {
ferencd@0:         std::vector<uint8_t> result;
ferencd@0:         to_msgpack(j, result);
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     static void to_msgpack(const basic_json& j, detail::output_adapter<uint8_t> o)
ferencd@0:     {
ferencd@0:         binary_writer<uint8_t>(o).write_msgpack(j);
ferencd@0:     }
ferencd@0: 
ferencd@0:     static void to_msgpack(const basic_json& j, detail::output_adapter<char> o)
ferencd@0:     {
ferencd@0:         binary_writer<char>(o).write_msgpack(j);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief create a UBJSON serialization of a given JSON value
ferencd@0: 
ferencd@0:     Serializes a given JSON value @a j to a byte vector using the UBJSON
ferencd@0:     (Universal Binary JSON) serialization format. UBJSON aims to be more compact
ferencd@0:     than JSON itself, yet more efficient to parse.
ferencd@0: 
ferencd@0:     The library uses the following mapping from JSON values types to
ferencd@0:     UBJSON types according to the UBJSON specification:
ferencd@0: 
ferencd@0:     JSON value type | value/range                       | UBJSON type | marker
ferencd@0:     --------------- | --------------------------------- | ----------- | ------
ferencd@0:     null            | `null`                            | null        | `Z`
ferencd@0:     boolean         | `true`                            | true        | `T`
ferencd@0:     boolean         | `false`                           | false       | `F`
ferencd@0:     number_integer  | -9223372036854775808..-2147483649 | int64       | `L`
ferencd@0:     number_integer  | -2147483648..-32769               | int32       | `l`
ferencd@0:     number_integer  | -32768..-129                      | int16       | `I`
ferencd@0:     number_integer  | -128..127                         | int8        | `i`
ferencd@0:     number_integer  | 128..255                          | uint8       | `U`
ferencd@0:     number_integer  | 256..32767                        | int16       | `I`
ferencd@0:     number_integer  | 32768..2147483647                 | int32       | `l`
ferencd@0:     number_integer  | 2147483648..9223372036854775807   | int64       | `L`
ferencd@0:     number_unsigned | 0..127                            | int8        | `i`
ferencd@0:     number_unsigned | 128..255                          | uint8       | `U`
ferencd@0:     number_unsigned | 256..32767                        | int16       | `I`
ferencd@0:     number_unsigned | 32768..2147483647                 | int32       | `l`
ferencd@0:     number_unsigned | 2147483648..9223372036854775807   | int64       | `L`
ferencd@0:     number_float    | *any value*                       | float64     | `D`
ferencd@0:     string          | *with shortest length indicator*  | string      | `S`
ferencd@0:     array           | *see notes on optimized format*   | array       | `[`
ferencd@0:     object          | *see notes on optimized format*   | map         | `{`
ferencd@0: 
ferencd@0:     @note The mapping is **complete** in the sense that any JSON value type
ferencd@0:           can be converted to a UBJSON value.
ferencd@0: 
ferencd@0:     @note The following values can **not** be converted to a UBJSON value:
ferencd@0:           - strings with more than 9223372036854775807 bytes (theoretical)
ferencd@0:           - unsigned integer numbers above 9223372036854775807
ferencd@0: 
ferencd@0:     @note The following markers are not used in the conversion:
ferencd@0:           - `Z`: no-op values are not created.
ferencd@0:           - `C`: single-byte strings are serialized with `S` markers.
ferencd@0: 
ferencd@0:     @note Any UBJSON output created @ref to_ubjson can be successfully parsed
ferencd@0:           by @ref from_ubjson.
ferencd@0: 
ferencd@0:     @note If NaN or Infinity are stored inside a JSON number, they are
ferencd@0:           serialized properly. This behavior differs from the @ref dump()
ferencd@0:           function which serializes NaN or Infinity to `null`.
ferencd@0: 
ferencd@0:     @note The optimized formats for containers are supported: Parameter
ferencd@0:           @a use_size adds size information to the beginning of a container and
ferencd@0:           removes the closing marker. Parameter @a use_type further checks
ferencd@0:           whether all elements of a container have the same type and adds the
ferencd@0:           type marker to the beginning of the container. The @a use_type
ferencd@0:           parameter must only be used together with @a use_size = true. Note
ferencd@0:           that @a use_size = true alone may result in larger representations -
ferencd@0:           the benefit of this parameter is that the receiving side is
ferencd@0:           immediately informed on the number of elements of the container.
ferencd@0: 
ferencd@0:     @param[in] j  JSON value to serialize
ferencd@0:     @param[in] use_size  whether to add size annotations to container types
ferencd@0:     @param[in] use_type  whether to add type annotations to container types
ferencd@0:                          (must be combined with @a use_size = true)
ferencd@0:     @return UBJSON serialization as byte vector
ferencd@0: 
ferencd@0:     @complexity Linear in the size of the JSON value @a j.
ferencd@0: 
ferencd@0:     @liveexample{The example shows the serialization of a JSON value to a byte
ferencd@0:     vector in UBJSON format.,to_ubjson}
ferencd@0: 
ferencd@0:     @sa http://ubjson.org
ferencd@0:     @sa @ref from_ubjson(detail::input_adapter&&, const bool, const bool) for the
ferencd@0:         analogous deserialization
ferencd@0:     @sa @ref to_cbor(const basic_json& for the related CBOR format
ferencd@0:     @sa @ref to_msgpack(const basic_json&) for the related MessagePack format
ferencd@0: 
ferencd@0:     @since version 3.1.0
ferencd@0:     */
ferencd@0:     static std::vector<uint8_t> to_ubjson(const basic_json& j,
ferencd@0:                                           const bool use_size = false,
ferencd@0:                                           const bool use_type = false)
ferencd@0:     {
ferencd@0:         std::vector<uint8_t> result;
ferencd@0:         to_ubjson(j, result, use_size, use_type);
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     static void to_ubjson(const basic_json& j, detail::output_adapter<uint8_t> o,
ferencd@0:                           const bool use_size = false, const bool use_type = false)
ferencd@0:     {
ferencd@0:         binary_writer<uint8_t>(o).write_ubjson(j, use_size, use_type);
ferencd@0:     }
ferencd@0: 
ferencd@0:     static void to_ubjson(const basic_json& j, detail::output_adapter<char> o,
ferencd@0:                           const bool use_size = false, const bool use_type = false)
ferencd@0:     {
ferencd@0:         binary_writer<char>(o).write_ubjson(j, use_size, use_type);
ferencd@0:     }
ferencd@0: 
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief Serializes the given JSON object `j` to BSON and returns a vector
ferencd@0:            containing the corresponding BSON-representation.
ferencd@0: 
ferencd@0:     BSON (Binary JSON) is a binary format in which zero or more ordered key/value pairs are
ferencd@0:     stored as a single entity (a so-called document).
ferencd@0: 
ferencd@0:     The library uses the following mapping from JSON values types to BSON types:
ferencd@0: 
ferencd@0:     JSON value type | value/range                       | BSON type   | marker
ferencd@0:     --------------- | --------------------------------- | ----------- | ------
ferencd@0:     null            | `null`                            | null        | 0x0A
ferencd@0:     boolean         | `true`, `false`                   | boolean     | 0x08
ferencd@0:     number_integer  | -9223372036854775808..-2147483649 | int64       | 0x12
ferencd@0:     number_integer  | -2147483648..2147483647           | int32       | 0x10
ferencd@0:     number_integer  | 2147483648..9223372036854775807   | int64       | 0x12
ferencd@0:     number_unsigned | 0..2147483647                     | int32       | 0x10
ferencd@0:     number_unsigned | 2147483648..9223372036854775807   | int64       | 0x12
ferencd@0:     number_unsigned | 9223372036854775808..18446744073709551615| --   | --
ferencd@0:     number_float    | *any value*                       | double      | 0x01
ferencd@0:     string          | *any value*                       | string      | 0x02
ferencd@0:     array           | *any value*                       | document    | 0x04
ferencd@0:     object          | *any value*                       | document    | 0x03
ferencd@0: 
ferencd@0:     @warning The mapping is **incomplete**, since only JSON-objects (and things
ferencd@0:     contained therein) can be serialized to BSON.
ferencd@0:     Also, integers larger than 9223372036854775807 cannot be serialized to BSON,
ferencd@0:     and the keys may not contain U+0000, since they are serialized a
ferencd@0:     zero-terminated c-strings.
ferencd@0: 
ferencd@0:     @throw out_of_range.407  if `j.is_number_unsigned() && j.get<std::uint64_t>() > 9223372036854775807`
ferencd@0:     @throw out_of_range.409  if a key in `j` contains a NULL (U+0000)
ferencd@0:     @throw type_error.317    if `!j.is_object()`
ferencd@0: 
ferencd@0:     @pre The input `j` is required to be an object: `j.is_object() == true`.
ferencd@0: 
ferencd@0:     @note Any BSON output created via @ref to_bson can be successfully parsed
ferencd@0:           by @ref from_bson.
ferencd@0: 
ferencd@0:     @param[in] j  JSON value to serialize
ferencd@0:     @return BSON serialization as byte vector
ferencd@0: 
ferencd@0:     @complexity Linear in the size of the JSON value @a j.
ferencd@0: 
ferencd@0:     @liveexample{The example shows the serialization of a JSON value to a byte
ferencd@0:     vector in BSON format.,to_bson}
ferencd@0: 
ferencd@0:     @sa http://bsonspec.org/spec.html
ferencd@0:     @sa @ref from_bson(detail::input_adapter&&, const bool strict) for the
ferencd@0:         analogous deserialization
ferencd@0:     @sa @ref to_ubjson(const basic_json&, const bool, const bool) for the
ferencd@0:              related UBJSON format
ferencd@0:     @sa @ref to_cbor(const basic_json&) for the related CBOR format
ferencd@0:     @sa @ref to_msgpack(const basic_json&) for the related MessagePack format
ferencd@0:     */
ferencd@0:     static std::vector<uint8_t> to_bson(const basic_json& j)
ferencd@0:     {
ferencd@0:         std::vector<uint8_t> result;
ferencd@0:         to_bson(j, result);
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief Serializes the given JSON object `j` to BSON and forwards the
ferencd@0:            corresponding BSON-representation to the given output_adapter `o`.
ferencd@0:     @param j The JSON object to convert to BSON.
ferencd@0:     @param o The output adapter that receives the binary BSON representation.
ferencd@0:     @pre The input `j` shall be an object: `j.is_object() == true`
ferencd@0:     @sa @ref to_bson(const basic_json&)
ferencd@0:     */
ferencd@0:     static void to_bson(const basic_json& j, detail::output_adapter<uint8_t> o)
ferencd@0:     {
ferencd@0:         binary_writer<uint8_t>(o).write_bson(j);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @copydoc to_bson(const basic_json&, detail::output_adapter<uint8_t>)
ferencd@0:     */
ferencd@0:     static void to_bson(const basic_json& j, detail::output_adapter<char> o)
ferencd@0:     {
ferencd@0:         binary_writer<char>(o).write_bson(j);
ferencd@0:     }
ferencd@0: 
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief create a JSON value from an input in CBOR format
ferencd@0: 
ferencd@0:     Deserializes a given input @a i to a JSON value using the CBOR (Concise
ferencd@0:     Binary Object Representation) serialization format.
ferencd@0: 
ferencd@0:     The library maps CBOR types to JSON value types as follows:
ferencd@0: 
ferencd@0:     CBOR type              | JSON value type | first byte
ferencd@0:     ---------------------- | --------------- | ----------
ferencd@0:     Integer                | number_unsigned | 0x00..0x17
ferencd@0:     Unsigned integer       | number_unsigned | 0x18
ferencd@0:     Unsigned integer       | number_unsigned | 0x19
ferencd@0:     Unsigned integer       | number_unsigned | 0x1A
ferencd@0:     Unsigned integer       | number_unsigned | 0x1B
ferencd@0:     Negative integer       | number_integer  | 0x20..0x37
ferencd@0:     Negative integer       | number_integer  | 0x38
ferencd@0:     Negative integer       | number_integer  | 0x39
ferencd@0:     Negative integer       | number_integer  | 0x3A
ferencd@0:     Negative integer       | number_integer  | 0x3B
ferencd@0:     Negative integer       | number_integer  | 0x40..0x57
ferencd@0:     UTF-8 string           | string          | 0x60..0x77
ferencd@0:     UTF-8 string           | string          | 0x78
ferencd@0:     UTF-8 string           | string          | 0x79
ferencd@0:     UTF-8 string           | string          | 0x7A
ferencd@0:     UTF-8 string           | string          | 0x7B
ferencd@0:     UTF-8 string           | string          | 0x7F
ferencd@0:     array                  | array           | 0x80..0x97
ferencd@0:     array                  | array           | 0x98
ferencd@0:     array                  | array           | 0x99
ferencd@0:     array                  | array           | 0x9A
ferencd@0:     array                  | array           | 0x9B
ferencd@0:     array                  | array           | 0x9F
ferencd@0:     map                    | object          | 0xA0..0xB7
ferencd@0:     map                    | object          | 0xB8
ferencd@0:     map                    | object          | 0xB9
ferencd@0:     map                    | object          | 0xBA
ferencd@0:     map                    | object          | 0xBB
ferencd@0:     map                    | object          | 0xBF
ferencd@0:     False                  | `false`         | 0xF4
ferencd@0:     True                   | `true`          | 0xF5
ferencd@0:     Null                   | `null`          | 0xF6
ferencd@0:     Half-Precision Float   | number_float    | 0xF9
ferencd@0:     Single-Precision Float | number_float    | 0xFA
ferencd@0:     Double-Precision Float | number_float    | 0xFB
ferencd@0: 
ferencd@0:     @warning The mapping is **incomplete** in the sense that not all CBOR
ferencd@0:              types can be converted to a JSON value. The following CBOR types
ferencd@0:              are not supported and will yield parse errors (parse_error.112):
ferencd@0:              - byte strings (0x40..0x5F)
ferencd@0:              - date/time (0xC0..0xC1)
ferencd@0:              - bignum (0xC2..0xC3)
ferencd@0:              - decimal fraction (0xC4)
ferencd@0:              - bigfloat (0xC5)
ferencd@0:              - tagged items (0xC6..0xD4, 0xD8..0xDB)
ferencd@0:              - expected conversions (0xD5..0xD7)
ferencd@0:              - simple values (0xE0..0xF3, 0xF8)
ferencd@0:              - undefined (0xF7)
ferencd@0: 
ferencd@0:     @warning CBOR allows map keys of any type, whereas JSON only allows
ferencd@0:              strings as keys in object values. Therefore, CBOR maps with keys
ferencd@0:              other than UTF-8 strings are rejected (parse_error.113).
ferencd@0: 
ferencd@0:     @note Any CBOR output created @ref to_cbor can be successfully parsed by
ferencd@0:           @ref from_cbor.
ferencd@0: 
ferencd@0:     @param[in] i  an input in CBOR format convertible to an input adapter
ferencd@0:     @param[in] strict  whether to expect the input to be consumed until EOF
ferencd@0:                        (true by default)
ferencd@0:     @param[in] allow_exceptions  whether to throw exceptions in case of a
ferencd@0:     parse error (optional, true by default)
ferencd@0: 
ferencd@0:     @return deserialized JSON value; in case of a parse error and
ferencd@0:             @a allow_exceptions set to `false`, the return value will be
ferencd@0:             value_t::discarded.
ferencd@0: 
ferencd@0:     @throw parse_error.110 if the given input ends prematurely or the end of
ferencd@0:     file was not reached when @a strict was set to true
ferencd@0:     @throw parse_error.112 if unsupported features from CBOR were
ferencd@0:     used in the given input @a v or if the input is not valid CBOR
ferencd@0:     @throw parse_error.113 if a string was expected as map key, but not found
ferencd@0: 
ferencd@0:     @complexity Linear in the size of the input @a i.
ferencd@0: 
ferencd@0:     @liveexample{The example shows the deserialization of a byte vector in CBOR
ferencd@0:     format to a JSON value.,from_cbor}
ferencd@0: 
ferencd@0:     @sa http://cbor.io
ferencd@0:     @sa @ref to_cbor(const basic_json&) for the analogous serialization
ferencd@0:     @sa @ref from_msgpack(detail::input_adapter&&, const bool, const bool) for the
ferencd@0:         related MessagePack format
ferencd@0:     @sa @ref from_ubjson(detail::input_adapter&&, const bool, const bool) for the
ferencd@0:         related UBJSON format
ferencd@0: 
ferencd@0:     @since version 2.0.9; parameter @a start_index since 2.1.1; changed to
ferencd@0:            consume input adapters, removed start_index parameter, and added
ferencd@0:            @a strict parameter since 3.0.0; added @a allow_exceptions parameter
ferencd@0:            since 3.2.0
ferencd@0:     */
ferencd@0:     JSON_HEDLEY_WARN_UNUSED_RESULT
ferencd@0:     static basic_json from_cbor(detail::input_adapter&& i,
ferencd@0:                                 const bool strict = true,
ferencd@0:                                 const bool allow_exceptions = true)
ferencd@0:     {
ferencd@0:         basic_json result;
ferencd@0:         detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
ferencd@0:         const bool res = binary_reader(detail::input_adapter(i)).sax_parse(input_format_t::cbor, &sdp, strict);
ferencd@0:         return res ? result : basic_json(value_t::discarded);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @copydoc from_cbor(detail::input_adapter&&, const bool, const bool)
ferencd@0:     */
ferencd@0:     template<typename A1, typename A2,
ferencd@0:              detail::enable_if_t<std::is_constructible<detail::input_adapter, A1, A2>::value, int> = 0>
ferencd@0:     JSON_HEDLEY_WARN_UNUSED_RESULT
ferencd@0:     static basic_json from_cbor(A1 && a1, A2 && a2,
ferencd@0:                                 const bool strict = true,
ferencd@0:                                 const bool allow_exceptions = true)
ferencd@0:     {
ferencd@0:         basic_json result;
ferencd@0:         detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
ferencd@0:         const bool res = binary_reader(detail::input_adapter(std::forward<A1>(a1), std::forward<A2>(a2))).sax_parse(input_format_t::cbor, &sdp, strict);
ferencd@0:         return res ? result : basic_json(value_t::discarded);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief create a JSON value from an input in MessagePack format
ferencd@0: 
ferencd@0:     Deserializes a given input @a i to a JSON value using the MessagePack
ferencd@0:     serialization format.
ferencd@0: 
ferencd@0:     The library maps MessagePack types to JSON value types as follows:
ferencd@0: 
ferencd@0:     MessagePack type | JSON value type | first byte
ferencd@0:     ---------------- | --------------- | ----------
ferencd@0:     positive fixint  | number_unsigned | 0x00..0x7F
ferencd@0:     fixmap           | object          | 0x80..0x8F
ferencd@0:     fixarray         | array           | 0x90..0x9F
ferencd@0:     fixstr           | string          | 0xA0..0xBF
ferencd@0:     nil              | `null`          | 0xC0
ferencd@0:     false            | `false`         | 0xC2
ferencd@0:     true             | `true`          | 0xC3
ferencd@0:     float 32         | number_float    | 0xCA
ferencd@0:     float 64         | number_float    | 0xCB
ferencd@0:     uint 8           | number_unsigned | 0xCC
ferencd@0:     uint 16          | number_unsigned | 0xCD
ferencd@0:     uint 32          | number_unsigned | 0xCE
ferencd@0:     uint 64          | number_unsigned | 0xCF
ferencd@0:     int 8            | number_integer  | 0xD0
ferencd@0:     int 16           | number_integer  | 0xD1
ferencd@0:     int 32           | number_integer  | 0xD2
ferencd@0:     int 64           | number_integer  | 0xD3
ferencd@0:     str 8            | string          | 0xD9
ferencd@0:     str 16           | string          | 0xDA
ferencd@0:     str 32           | string          | 0xDB
ferencd@0:     array 16         | array           | 0xDC
ferencd@0:     array 32         | array           | 0xDD
ferencd@0:     map 16           | object          | 0xDE
ferencd@0:     map 32           | object          | 0xDF
ferencd@0:     negative fixint  | number_integer  | 0xE0-0xFF
ferencd@0: 
ferencd@0:     @warning The mapping is **incomplete** in the sense that not all
ferencd@0:              MessagePack types can be converted to a JSON value. The following
ferencd@0:              MessagePack types are not supported and will yield parse errors:
ferencd@0:               - bin 8 - bin 32 (0xC4..0xC6)
ferencd@0:               - ext 8 - ext 32 (0xC7..0xC9)
ferencd@0:               - fixext 1 - fixext 16 (0xD4..0xD8)
ferencd@0: 
ferencd@0:     @note Any MessagePack output created @ref to_msgpack can be successfully
ferencd@0:           parsed by @ref from_msgpack.
ferencd@0: 
ferencd@0:     @param[in] i  an input in MessagePack format convertible to an input
ferencd@0:                   adapter
ferencd@0:     @param[in] strict  whether to expect the input to be consumed until EOF
ferencd@0:                        (true by default)
ferencd@0:     @param[in] allow_exceptions  whether to throw exceptions in case of a
ferencd@0:     parse error (optional, true by default)
ferencd@0: 
ferencd@0:     @return deserialized JSON value; in case of a parse error and
ferencd@0:             @a allow_exceptions set to `false`, the return value will be
ferencd@0:             value_t::discarded.
ferencd@0: 
ferencd@0:     @throw parse_error.110 if the given input ends prematurely or the end of
ferencd@0:     file was not reached when @a strict was set to true
ferencd@0:     @throw parse_error.112 if unsupported features from MessagePack were
ferencd@0:     used in the given input @a i or if the input is not valid MessagePack
ferencd@0:     @throw parse_error.113 if a string was expected as map key, but not found
ferencd@0: 
ferencd@0:     @complexity Linear in the size of the input @a i.
ferencd@0: 
ferencd@0:     @liveexample{The example shows the deserialization of a byte vector in
ferencd@0:     MessagePack format to a JSON value.,from_msgpack}
ferencd@0: 
ferencd@0:     @sa http://msgpack.org
ferencd@0:     @sa @ref to_msgpack(const basic_json&) for the analogous serialization
ferencd@0:     @sa @ref from_cbor(detail::input_adapter&&, const bool, const bool) for the
ferencd@0:         related CBOR format
ferencd@0:     @sa @ref from_ubjson(detail::input_adapter&&, const bool, const bool) for
ferencd@0:         the related UBJSON format
ferencd@0:     @sa @ref from_bson(detail::input_adapter&&, const bool, const bool) for
ferencd@0:         the related BSON format
ferencd@0: 
ferencd@0:     @since version 2.0.9; parameter @a start_index since 2.1.1; changed to
ferencd@0:            consume input adapters, removed start_index parameter, and added
ferencd@0:            @a strict parameter since 3.0.0; added @a allow_exceptions parameter
ferencd@0:            since 3.2.0
ferencd@0:     */
ferencd@0:     JSON_HEDLEY_WARN_UNUSED_RESULT
ferencd@0:     static basic_json from_msgpack(detail::input_adapter&& i,
ferencd@0:                                    const bool strict = true,
ferencd@0:                                    const bool allow_exceptions = true)
ferencd@0:     {
ferencd@0:         basic_json result;
ferencd@0:         detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
ferencd@0:         const bool res = binary_reader(detail::input_adapter(i)).sax_parse(input_format_t::msgpack, &sdp, strict);
ferencd@0:         return res ? result : basic_json(value_t::discarded);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @copydoc from_msgpack(detail::input_adapter&&, const bool, const bool)
ferencd@0:     */
ferencd@0:     template<typename A1, typename A2,
ferencd@0:              detail::enable_if_t<std::is_constructible<detail::input_adapter, A1, A2>::value, int> = 0>
ferencd@0:     JSON_HEDLEY_WARN_UNUSED_RESULT
ferencd@0:     static basic_json from_msgpack(A1 && a1, A2 && a2,
ferencd@0:                                    const bool strict = true,
ferencd@0:                                    const bool allow_exceptions = true)
ferencd@0:     {
ferencd@0:         basic_json result;
ferencd@0:         detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
ferencd@0:         const bool res = binary_reader(detail::input_adapter(std::forward<A1>(a1), std::forward<A2>(a2))).sax_parse(input_format_t::msgpack, &sdp, strict);
ferencd@0:         return res ? result : basic_json(value_t::discarded);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief create a JSON value from an input in UBJSON format
ferencd@0: 
ferencd@0:     Deserializes a given input @a i to a JSON value using the UBJSON (Universal
ferencd@0:     Binary JSON) serialization format.
ferencd@0: 
ferencd@0:     The library maps UBJSON types to JSON value types as follows:
ferencd@0: 
ferencd@0:     UBJSON type | JSON value type                         | marker
ferencd@0:     ----------- | --------------------------------------- | ------
ferencd@0:     no-op       | *no value, next value is read*          | `N`
ferencd@0:     null        | `null`                                  | `Z`
ferencd@0:     false       | `false`                                 | `F`
ferencd@0:     true        | `true`                                  | `T`
ferencd@0:     float32     | number_float                            | `d`
ferencd@0:     float64     | number_float                            | `D`
ferencd@0:     uint8       | number_unsigned                         | `U`
ferencd@0:     int8        | number_integer                          | `i`
ferencd@0:     int16       | number_integer                          | `I`
ferencd@0:     int32       | number_integer                          | `l`
ferencd@0:     int64       | number_integer                          | `L`
ferencd@0:     string      | string                                  | `S`
ferencd@0:     char        | string                                  | `C`
ferencd@0:     array       | array (optimized values are supported)  | `[`
ferencd@0:     object      | object (optimized values are supported) | `{`
ferencd@0: 
ferencd@0:     @note The mapping is **complete** in the sense that any UBJSON value can
ferencd@0:           be converted to a JSON value.
ferencd@0: 
ferencd@0:     @param[in] i  an input in UBJSON format convertible to an input adapter
ferencd@0:     @param[in] strict  whether to expect the input to be consumed until EOF
ferencd@0:                        (true by default)
ferencd@0:     @param[in] allow_exceptions  whether to throw exceptions in case of a
ferencd@0:     parse error (optional, true by default)
ferencd@0: 
ferencd@0:     @return deserialized JSON value; in case of a parse error and
ferencd@0:             @a allow_exceptions set to `false`, the return value will be
ferencd@0:             value_t::discarded.
ferencd@0: 
ferencd@0:     @throw parse_error.110 if the given input ends prematurely or the end of
ferencd@0:     file was not reached when @a strict was set to true
ferencd@0:     @throw parse_error.112 if a parse error occurs
ferencd@0:     @throw parse_error.113 if a string could not be parsed successfully
ferencd@0: 
ferencd@0:     @complexity Linear in the size of the input @a i.
ferencd@0: 
ferencd@0:     @liveexample{The example shows the deserialization of a byte vector in
ferencd@0:     UBJSON format to a JSON value.,from_ubjson}
ferencd@0: 
ferencd@0:     @sa http://ubjson.org
ferencd@0:     @sa @ref to_ubjson(const basic_json&, const bool, const bool) for the
ferencd@0:              analogous serialization
ferencd@0:     @sa @ref from_cbor(detail::input_adapter&&, const bool, const bool) for the
ferencd@0:         related CBOR format
ferencd@0:     @sa @ref from_msgpack(detail::input_adapter&&, const bool, const bool) for
ferencd@0:         the related MessagePack format
ferencd@0:     @sa @ref from_bson(detail::input_adapter&&, const bool, const bool) for
ferencd@0:         the related BSON format
ferencd@0: 
ferencd@0:     @since version 3.1.0; added @a allow_exceptions parameter since 3.2.0
ferencd@0:     */
ferencd@0:     JSON_HEDLEY_WARN_UNUSED_RESULT
ferencd@0:     static basic_json from_ubjson(detail::input_adapter&& i,
ferencd@0:                                   const bool strict = true,
ferencd@0:                                   const bool allow_exceptions = true)
ferencd@0:     {
ferencd@0:         basic_json result;
ferencd@0:         detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
ferencd@0:         const bool res = binary_reader(detail::input_adapter(i)).sax_parse(input_format_t::ubjson, &sdp, strict);
ferencd@0:         return res ? result : basic_json(value_t::discarded);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @copydoc from_ubjson(detail::input_adapter&&, const bool, const bool)
ferencd@0:     */
ferencd@0:     template<typename A1, typename A2,
ferencd@0:              detail::enable_if_t<std::is_constructible<detail::input_adapter, A1, A2>::value, int> = 0>
ferencd@0:     JSON_HEDLEY_WARN_UNUSED_RESULT
ferencd@0:     static basic_json from_ubjson(A1 && a1, A2 && a2,
ferencd@0:                                   const bool strict = true,
ferencd@0:                                   const bool allow_exceptions = true)
ferencd@0:     {
ferencd@0:         basic_json result;
ferencd@0:         detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
ferencd@0:         const bool res = binary_reader(detail::input_adapter(std::forward<A1>(a1), std::forward<A2>(a2))).sax_parse(input_format_t::ubjson, &sdp, strict);
ferencd@0:         return res ? result : basic_json(value_t::discarded);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief Create a JSON value from an input in BSON format
ferencd@0: 
ferencd@0:     Deserializes a given input @a i to a JSON value using the BSON (Binary JSON)
ferencd@0:     serialization format.
ferencd@0: 
ferencd@0:     The library maps BSON record types to JSON value types as follows:
ferencd@0: 
ferencd@0:     BSON type       | BSON marker byte | JSON value type
ferencd@0:     --------------- | ---------------- | ---------------------------
ferencd@0:     double          | 0x01             | number_float
ferencd@0:     string          | 0x02             | string
ferencd@0:     document        | 0x03             | object
ferencd@0:     array           | 0x04             | array
ferencd@0:     binary          | 0x05             | still unsupported
ferencd@0:     undefined       | 0x06             | still unsupported
ferencd@0:     ObjectId        | 0x07             | still unsupported
ferencd@0:     boolean         | 0x08             | boolean
ferencd@0:     UTC Date-Time   | 0x09             | still unsupported
ferencd@0:     null            | 0x0A             | null
ferencd@0:     Regular Expr.   | 0x0B             | still unsupported
ferencd@0:     DB Pointer      | 0x0C             | still unsupported
ferencd@0:     JavaScript Code | 0x0D             | still unsupported
ferencd@0:     Symbol          | 0x0E             | still unsupported
ferencd@0:     JavaScript Code | 0x0F             | still unsupported
ferencd@0:     int32           | 0x10             | number_integer
ferencd@0:     Timestamp       | 0x11             | still unsupported
ferencd@0:     128-bit decimal float | 0x13       | still unsupported
ferencd@0:     Max Key         | 0x7F             | still unsupported
ferencd@0:     Min Key         | 0xFF             | still unsupported
ferencd@0: 
ferencd@0:     @warning The mapping is **incomplete**. The unsupported mappings
ferencd@0:              are indicated in the table above.
ferencd@0: 
ferencd@0:     @param[in] i  an input in BSON format convertible to an input adapter
ferencd@0:     @param[in] strict  whether to expect the input to be consumed until EOF
ferencd@0:                        (true by default)
ferencd@0:     @param[in] allow_exceptions  whether to throw exceptions in case of a
ferencd@0:     parse error (optional, true by default)
ferencd@0: 
ferencd@0:     @return deserialized JSON value; in case of a parse error and
ferencd@0:             @a allow_exceptions set to `false`, the return value will be
ferencd@0:             value_t::discarded.
ferencd@0: 
ferencd@0:     @throw parse_error.114 if an unsupported BSON record type is encountered
ferencd@0: 
ferencd@0:     @complexity Linear in the size of the input @a i.
ferencd@0: 
ferencd@0:     @liveexample{The example shows the deserialization of a byte vector in
ferencd@0:     BSON format to a JSON value.,from_bson}
ferencd@0: 
ferencd@0:     @sa http://bsonspec.org/spec.html
ferencd@0:     @sa @ref to_bson(const basic_json&) for the analogous serialization
ferencd@0:     @sa @ref from_cbor(detail::input_adapter&&, const bool, const bool) for the
ferencd@0:         related CBOR format
ferencd@0:     @sa @ref from_msgpack(detail::input_adapter&&, const bool, const bool) for
ferencd@0:         the related MessagePack format
ferencd@0:     @sa @ref from_ubjson(detail::input_adapter&&, const bool, const bool) for the
ferencd@0:         related UBJSON format
ferencd@0:     */
ferencd@0:     JSON_HEDLEY_WARN_UNUSED_RESULT
ferencd@0:     static basic_json from_bson(detail::input_adapter&& i,
ferencd@0:                                 const bool strict = true,
ferencd@0:                                 const bool allow_exceptions = true)
ferencd@0:     {
ferencd@0:         basic_json result;
ferencd@0:         detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
ferencd@0:         const bool res = binary_reader(detail::input_adapter(i)).sax_parse(input_format_t::bson, &sdp, strict);
ferencd@0:         return res ? result : basic_json(value_t::discarded);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @copydoc from_bson(detail::input_adapter&&, const bool, const bool)
ferencd@0:     */
ferencd@0:     template<typename A1, typename A2,
ferencd@0:              detail::enable_if_t<std::is_constructible<detail::input_adapter, A1, A2>::value, int> = 0>
ferencd@0:     JSON_HEDLEY_WARN_UNUSED_RESULT
ferencd@0:     static basic_json from_bson(A1 && a1, A2 && a2,
ferencd@0:                                 const bool strict = true,
ferencd@0:                                 const bool allow_exceptions = true)
ferencd@0:     {
ferencd@0:         basic_json result;
ferencd@0:         detail::json_sax_dom_parser<basic_json> sdp(result, allow_exceptions);
ferencd@0:         const bool res = binary_reader(detail::input_adapter(std::forward<A1>(a1), std::forward<A2>(a2))).sax_parse(input_format_t::bson, &sdp, strict);
ferencd@0:         return res ? result : basic_json(value_t::discarded);
ferencd@0:     }
ferencd@0: 
ferencd@0: 
ferencd@0: 
ferencd@0:     /// @}
ferencd@0: 
ferencd@0:     //////////////////////////
ferencd@0:     // JSON Pointer support //
ferencd@0:     //////////////////////////
ferencd@0: 
ferencd@0:     /// @name JSON Pointer functions
ferencd@0:     /// @{
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief access specified element via JSON Pointer
ferencd@0: 
ferencd@0:     Uses a JSON pointer to retrieve a reference to the respective JSON value.
ferencd@0:     No bound checking is performed. Similar to @ref operator[](const typename
ferencd@0:     object_t::key_type&), `null` values are created in arrays and objects if
ferencd@0:     necessary.
ferencd@0: 
ferencd@0:     In particular:
ferencd@0:     - If the JSON pointer points to an object key that does not exist, it
ferencd@0:       is created an filled with a `null` value before a reference to it
ferencd@0:       is returned.
ferencd@0:     - If the JSON pointer points to an array index that does not exist, it
ferencd@0:       is created an filled with a `null` value before a reference to it
ferencd@0:       is returned. All indices between the current maximum and the given
ferencd@0:       index are also filled with `null`.
ferencd@0:     - The special value `-` is treated as a synonym for the index past the
ferencd@0:       end.
ferencd@0: 
ferencd@0:     @param[in] ptr  a JSON pointer
ferencd@0: 
ferencd@0:     @return reference to the element pointed to by @a ptr
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @throw parse_error.106   if an array index begins with '0'
ferencd@0:     @throw parse_error.109   if an array index was not a number
ferencd@0:     @throw out_of_range.404  if the JSON pointer can not be resolved
ferencd@0: 
ferencd@0:     @liveexample{The behavior is shown in the example.,operatorjson_pointer}
ferencd@0: 
ferencd@0:     @since version 2.0.0
ferencd@0:     */
ferencd@0:     reference operator[](const json_pointer& ptr)
ferencd@0:     {
ferencd@0:         return ptr.get_unchecked(this);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief access specified element via JSON Pointer
ferencd@0: 
ferencd@0:     Uses a JSON pointer to retrieve a reference to the respective JSON value.
ferencd@0:     No bound checking is performed. The function does not change the JSON
ferencd@0:     value; no `null` values are created. In particular, the the special value
ferencd@0:     `-` yields an exception.
ferencd@0: 
ferencd@0:     @param[in] ptr  JSON pointer to the desired element
ferencd@0: 
ferencd@0:     @return const reference to the element pointed to by @a ptr
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @throw parse_error.106   if an array index begins with '0'
ferencd@0:     @throw parse_error.109   if an array index was not a number
ferencd@0:     @throw out_of_range.402  if the array index '-' is used
ferencd@0:     @throw out_of_range.404  if the JSON pointer can not be resolved
ferencd@0: 
ferencd@0:     @liveexample{The behavior is shown in the example.,operatorjson_pointer_const}
ferencd@0: 
ferencd@0:     @since version 2.0.0
ferencd@0:     */
ferencd@0:     const_reference operator[](const json_pointer& ptr) const
ferencd@0:     {
ferencd@0:         return ptr.get_unchecked(this);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief access specified element via JSON Pointer
ferencd@0: 
ferencd@0:     Returns a reference to the element at with specified JSON pointer @a ptr,
ferencd@0:     with bounds checking.
ferencd@0: 
ferencd@0:     @param[in] ptr  JSON pointer to the desired element
ferencd@0: 
ferencd@0:     @return reference to the element pointed to by @a ptr
ferencd@0: 
ferencd@0:     @throw parse_error.106 if an array index in the passed JSON pointer @a ptr
ferencd@0:     begins with '0'. See example below.
ferencd@0: 
ferencd@0:     @throw parse_error.109 if an array index in the passed JSON pointer @a ptr
ferencd@0:     is not a number. See example below.
ferencd@0: 
ferencd@0:     @throw out_of_range.401 if an array index in the passed JSON pointer @a ptr
ferencd@0:     is out of range. See example below.
ferencd@0: 
ferencd@0:     @throw out_of_range.402 if the array index '-' is used in the passed JSON
ferencd@0:     pointer @a ptr. As `at` provides checked access (and no elements are
ferencd@0:     implicitly inserted), the index '-' is always invalid. See example below.
ferencd@0: 
ferencd@0:     @throw out_of_range.403 if the JSON pointer describes a key of an object
ferencd@0:     which cannot be found. See example below.
ferencd@0: 
ferencd@0:     @throw out_of_range.404 if the JSON pointer @a ptr can not be resolved.
ferencd@0:     See example below.
ferencd@0: 
ferencd@0:     @exceptionsafety Strong guarantee: if an exception is thrown, there are no
ferencd@0:     changes in the JSON value.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @since version 2.0.0
ferencd@0: 
ferencd@0:     @liveexample{The behavior is shown in the example.,at_json_pointer}
ferencd@0:     */
ferencd@0:     reference at(const json_pointer& ptr)
ferencd@0:     {
ferencd@0:         return ptr.get_checked(this);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief access specified element via JSON Pointer
ferencd@0: 
ferencd@0:     Returns a const reference to the element at with specified JSON pointer @a
ferencd@0:     ptr, with bounds checking.
ferencd@0: 
ferencd@0:     @param[in] ptr  JSON pointer to the desired element
ferencd@0: 
ferencd@0:     @return reference to the element pointed to by @a ptr
ferencd@0: 
ferencd@0:     @throw parse_error.106 if an array index in the passed JSON pointer @a ptr
ferencd@0:     begins with '0'. See example below.
ferencd@0: 
ferencd@0:     @throw parse_error.109 if an array index in the passed JSON pointer @a ptr
ferencd@0:     is not a number. See example below.
ferencd@0: 
ferencd@0:     @throw out_of_range.401 if an array index in the passed JSON pointer @a ptr
ferencd@0:     is out of range. See example below.
ferencd@0: 
ferencd@0:     @throw out_of_range.402 if the array index '-' is used in the passed JSON
ferencd@0:     pointer @a ptr. As `at` provides checked access (and no elements are
ferencd@0:     implicitly inserted), the index '-' is always invalid. See example below.
ferencd@0: 
ferencd@0:     @throw out_of_range.403 if the JSON pointer describes a key of an object
ferencd@0:     which cannot be found. See example below.
ferencd@0: 
ferencd@0:     @throw out_of_range.404 if the JSON pointer @a ptr can not be resolved.
ferencd@0:     See example below.
ferencd@0: 
ferencd@0:     @exceptionsafety Strong guarantee: if an exception is thrown, there are no
ferencd@0:     changes in the JSON value.
ferencd@0: 
ferencd@0:     @complexity Constant.
ferencd@0: 
ferencd@0:     @since version 2.0.0
ferencd@0: 
ferencd@0:     @liveexample{The behavior is shown in the example.,at_json_pointer_const}
ferencd@0:     */
ferencd@0:     const_reference at(const json_pointer& ptr) const
ferencd@0:     {
ferencd@0:         return ptr.get_checked(this);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief return flattened JSON value
ferencd@0: 
ferencd@0:     The function creates a JSON object whose keys are JSON pointers (see [RFC
ferencd@0:     6901](https://tools.ietf.org/html/rfc6901)) and whose values are all
ferencd@0:     primitive. The original JSON value can be restored using the @ref
ferencd@0:     unflatten() function.
ferencd@0: 
ferencd@0:     @return an object that maps JSON pointers to primitive values
ferencd@0: 
ferencd@0:     @note Empty objects and arrays are flattened to `null` and will not be
ferencd@0:           reconstructed correctly by the @ref unflatten() function.
ferencd@0: 
ferencd@0:     @complexity Linear in the size the JSON value.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows how a JSON object is flattened to an
ferencd@0:     object whose keys consist of JSON pointers.,flatten}
ferencd@0: 
ferencd@0:     @sa @ref unflatten() for the reverse function
ferencd@0: 
ferencd@0:     @since version 2.0.0
ferencd@0:     */
ferencd@0:     basic_json flatten() const
ferencd@0:     {
ferencd@0:         basic_json result(value_t::object);
ferencd@0:         json_pointer::flatten("", *this, result);
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief unflatten a previously flattened JSON value
ferencd@0: 
ferencd@0:     The function restores the arbitrary nesting of a JSON value that has been
ferencd@0:     flattened before using the @ref flatten() function. The JSON value must
ferencd@0:     meet certain constraints:
ferencd@0:     1. The value must be an object.
ferencd@0:     2. The keys must be JSON pointers (see
ferencd@0:        [RFC 6901](https://tools.ietf.org/html/rfc6901))
ferencd@0:     3. The mapped values must be primitive JSON types.
ferencd@0: 
ferencd@0:     @return the original JSON from a flattened version
ferencd@0: 
ferencd@0:     @note Empty objects and arrays are flattened by @ref flatten() to `null`
ferencd@0:           values and can not unflattened to their original type. Apart from
ferencd@0:           this example, for a JSON value `j`, the following is always true:
ferencd@0:           `j == j.flatten().unflatten()`.
ferencd@0: 
ferencd@0:     @complexity Linear in the size the JSON value.
ferencd@0: 
ferencd@0:     @throw type_error.314  if value is not an object
ferencd@0:     @throw type_error.315  if object values are not primitive
ferencd@0: 
ferencd@0:     @liveexample{The following code shows how a flattened JSON object is
ferencd@0:     unflattened into the original nested JSON object.,unflatten}
ferencd@0: 
ferencd@0:     @sa @ref flatten() for the reverse function
ferencd@0: 
ferencd@0:     @since version 2.0.0
ferencd@0:     */
ferencd@0:     basic_json unflatten() const
ferencd@0:     {
ferencd@0:         return json_pointer::unflatten(*this);
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// @}
ferencd@0: 
ferencd@0:     //////////////////////////
ferencd@0:     // JSON Patch functions //
ferencd@0:     //////////////////////////
ferencd@0: 
ferencd@0:     /// @name JSON Patch functions
ferencd@0:     /// @{
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief applies a JSON patch
ferencd@0: 
ferencd@0:     [JSON Patch](http://jsonpatch.com) defines a JSON document structure for
ferencd@0:     expressing a sequence of operations to apply to a JSON) document. With
ferencd@0:     this function, a JSON Patch is applied to the current JSON value by
ferencd@0:     executing all operations from the patch.
ferencd@0: 
ferencd@0:     @param[in] json_patch  JSON patch document
ferencd@0:     @return patched document
ferencd@0: 
ferencd@0:     @note The application of a patch is atomic: Either all operations succeed
ferencd@0:           and the patched document is returned or an exception is thrown. In
ferencd@0:           any case, the original value is not changed: the patch is applied
ferencd@0:           to a copy of the value.
ferencd@0: 
ferencd@0:     @throw parse_error.104 if the JSON patch does not consist of an array of
ferencd@0:     objects
ferencd@0: 
ferencd@0:     @throw parse_error.105 if the JSON patch is malformed (e.g., mandatory
ferencd@0:     attributes are missing); example: `"operation add must have member path"`
ferencd@0: 
ferencd@0:     @throw out_of_range.401 if an array index is out of range.
ferencd@0: 
ferencd@0:     @throw out_of_range.403 if a JSON pointer inside the patch could not be
ferencd@0:     resolved successfully in the current JSON value; example: `"key baz not
ferencd@0:     found"`
ferencd@0: 
ferencd@0:     @throw out_of_range.405 if JSON pointer has no parent ("add", "remove",
ferencd@0:     "move")
ferencd@0: 
ferencd@0:     @throw other_error.501 if "test" operation was unsuccessful
ferencd@0: 
ferencd@0:     @complexity Linear in the size of the JSON value and the length of the
ferencd@0:     JSON patch. As usually only a fraction of the JSON value is affected by
ferencd@0:     the patch, the complexity can usually be neglected.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows how a JSON patch is applied to a
ferencd@0:     value.,patch}
ferencd@0: 
ferencd@0:     @sa @ref diff -- create a JSON patch by comparing two JSON values
ferencd@0: 
ferencd@0:     @sa [RFC 6902 (JSON Patch)](https://tools.ietf.org/html/rfc6902)
ferencd@0:     @sa [RFC 6901 (JSON Pointer)](https://tools.ietf.org/html/rfc6901)
ferencd@0: 
ferencd@0:     @since version 2.0.0
ferencd@0:     */
ferencd@0:     basic_json patch(const basic_json& json_patch) const
ferencd@0:     {
ferencd@0:         // make a working copy to apply the patch to
ferencd@0:         basic_json result = *this;
ferencd@0: 
ferencd@0:         // the valid JSON Patch operations
ferencd@0:         enum class patch_operations {add, remove, replace, move, copy, test, invalid};
ferencd@0: 
ferencd@0:         const auto get_op = [](const std::string & op)
ferencd@0:         {
ferencd@0:             if (op == "add")
ferencd@0:             {
ferencd@0:                 return patch_operations::add;
ferencd@0:             }
ferencd@0:             if (op == "remove")
ferencd@0:             {
ferencd@0:                 return patch_operations::remove;
ferencd@0:             }
ferencd@0:             if (op == "replace")
ferencd@0:             {
ferencd@0:                 return patch_operations::replace;
ferencd@0:             }
ferencd@0:             if (op == "move")
ferencd@0:             {
ferencd@0:                 return patch_operations::move;
ferencd@0:             }
ferencd@0:             if (op == "copy")
ferencd@0:             {
ferencd@0:                 return patch_operations::copy;
ferencd@0:             }
ferencd@0:             if (op == "test")
ferencd@0:             {
ferencd@0:                 return patch_operations::test;
ferencd@0:             }
ferencd@0: 
ferencd@0:             return patch_operations::invalid;
ferencd@0:         };
ferencd@0: 
ferencd@0:         // wrapper for "add" operation; add value at ptr
ferencd@0:         const auto operation_add = [&result](json_pointer & ptr, basic_json val)
ferencd@0:         {
ferencd@0:             // adding to the root of the target document means replacing it
ferencd@0:             if (ptr.empty())
ferencd@0:             {
ferencd@0:                 result = val;
ferencd@0:                 return;
ferencd@0:             }
ferencd@0: 
ferencd@0:             // make sure the top element of the pointer exists
ferencd@0:             json_pointer top_pointer = ptr.top();
ferencd@0:             if (top_pointer != ptr)
ferencd@0:             {
ferencd@0:                 result.at(top_pointer);
ferencd@0:             }
ferencd@0: 
ferencd@0:             // get reference to parent of JSON pointer ptr
ferencd@0:             const auto last_path = ptr.back();
ferencd@0:             ptr.pop_back();
ferencd@0:             basic_json& parent = result[ptr];
ferencd@0: 
ferencd@0:             switch (parent.m_type)
ferencd@0:             {
ferencd@0:                 case value_t::null:
ferencd@0:                 case value_t::object:
ferencd@0:                 {
ferencd@0:                     // use operator[] to add value
ferencd@0:                     parent[last_path] = val;
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case value_t::array:
ferencd@0:                 {
ferencd@0:                     if (last_path == "-")
ferencd@0:                     {
ferencd@0:                         // special case: append to back
ferencd@0:                         parent.push_back(val);
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                     {
ferencd@0:                         const auto idx = json_pointer::array_index(last_path);
ferencd@0:                         if (JSON_HEDLEY_UNLIKELY(static_cast<size_type>(idx) > parent.size()))
ferencd@0:                         {
ferencd@0:                             // avoid undefined behavior
ferencd@0:                             JSON_THROW(out_of_range::create(401, "array index " + std::to_string(idx) + " is out of range"));
ferencd@0:                         }
ferencd@0: 
ferencd@0:                         // default case: insert add offset
ferencd@0:                         parent.insert(parent.begin() + static_cast<difference_type>(idx), val);
ferencd@0:                     }
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // if there exists a parent it cannot be primitive
ferencd@0:                 default:            // LCOV_EXCL_LINE
ferencd@0:                     assert(false);  // LCOV_EXCL_LINE
ferencd@0:             }
ferencd@0:         };
ferencd@0: 
ferencd@0:         // wrapper for "remove" operation; remove value at ptr
ferencd@0:         const auto operation_remove = [&result](json_pointer & ptr)
ferencd@0:         {
ferencd@0:             // get reference to parent of JSON pointer ptr
ferencd@0:             const auto last_path = ptr.back();
ferencd@0:             ptr.pop_back();
ferencd@0:             basic_json& parent = result.at(ptr);
ferencd@0: 
ferencd@0:             // remove child
ferencd@0:             if (parent.is_object())
ferencd@0:             {
ferencd@0:                 // perform range check
ferencd@0:                 auto it = parent.find(last_path);
ferencd@0:                 if (JSON_HEDLEY_LIKELY(it != parent.end()))
ferencd@0:                 {
ferencd@0:                     parent.erase(it);
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     JSON_THROW(out_of_range::create(403, "key '" + last_path + "' not found"));
ferencd@0:                 }
ferencd@0:             }
ferencd@0:             else if (parent.is_array())
ferencd@0:             {
ferencd@0:                 // note erase performs range check
ferencd@0:                 parent.erase(static_cast<size_type>(json_pointer::array_index(last_path)));
ferencd@0:             }
ferencd@0:         };
ferencd@0: 
ferencd@0:         // type check: top level value must be an array
ferencd@0:         if (JSON_HEDLEY_UNLIKELY(not json_patch.is_array()))
ferencd@0:         {
ferencd@0:             JSON_THROW(parse_error::create(104, 0, "JSON patch must be an array of objects"));
ferencd@0:         }
ferencd@0: 
ferencd@0:         // iterate and apply the operations
ferencd@0:         for (const auto& val : json_patch)
ferencd@0:         {
ferencd@0:             // wrapper to get a value for an operation
ferencd@0:             const auto get_value = [&val](const std::string & op,
ferencd@0:                                           const std::string & member,
ferencd@0:                                           bool string_type) -> basic_json &
ferencd@0:             {
ferencd@0:                 // find value
ferencd@0:                 auto it = val.m_value.object->find(member);
ferencd@0: 
ferencd@0:                 // context-sensitive error message
ferencd@0:                 const auto error_msg = (op == "op") ? "operation" : "operation '" + op + "'";
ferencd@0: 
ferencd@0:                 // check if desired value is present
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(it == val.m_value.object->end()))
ferencd@0:                 {
ferencd@0:                     JSON_THROW(parse_error::create(105, 0, error_msg + " must have member '" + member + "'"));
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // check if result is of type string
ferencd@0:                 if (JSON_HEDLEY_UNLIKELY(string_type and not it->second.is_string()))
ferencd@0:                 {
ferencd@0:                     JSON_THROW(parse_error::create(105, 0, error_msg + " must have string member '" + member + "'"));
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // no error: return value
ferencd@0:                 return it->second;
ferencd@0:             };
ferencd@0: 
ferencd@0:             // type check: every element of the array must be an object
ferencd@0:             if (JSON_HEDLEY_UNLIKELY(not val.is_object()))
ferencd@0:             {
ferencd@0:                 JSON_THROW(parse_error::create(104, 0, "JSON patch must be an array of objects"));
ferencd@0:             }
ferencd@0: 
ferencd@0:             // collect mandatory members
ferencd@0:             const std::string op = get_value("op", "op", true);
ferencd@0:             const std::string path = get_value(op, "path", true);
ferencd@0:             json_pointer ptr(path);
ferencd@0: 
ferencd@0:             switch (get_op(op))
ferencd@0:             {
ferencd@0:                 case patch_operations::add:
ferencd@0:                 {
ferencd@0:                     operation_add(ptr, get_value("add", "value", false));
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case patch_operations::remove:
ferencd@0:                 {
ferencd@0:                     operation_remove(ptr);
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case patch_operations::replace:
ferencd@0:                 {
ferencd@0:                     // the "path" location must exist - use at()
ferencd@0:                     result.at(ptr) = get_value("replace", "value", false);
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case patch_operations::move:
ferencd@0:                 {
ferencd@0:                     const std::string from_path = get_value("move", "from", true);
ferencd@0:                     json_pointer from_ptr(from_path);
ferencd@0: 
ferencd@0:                     // the "from" location must exist - use at()
ferencd@0:                     basic_json v = result.at(from_ptr);
ferencd@0: 
ferencd@0:                     // The move operation is functionally identical to a
ferencd@0:                     // "remove" operation on the "from" location, followed
ferencd@0:                     // immediately by an "add" operation at the target
ferencd@0:                     // location with the value that was just removed.
ferencd@0:                     operation_remove(from_ptr);
ferencd@0:                     operation_add(ptr, v);
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case patch_operations::copy:
ferencd@0:                 {
ferencd@0:                     const std::string from_path = get_value("copy", "from", true);
ferencd@0:                     const json_pointer from_ptr(from_path);
ferencd@0: 
ferencd@0:                     // the "from" location must exist - use at()
ferencd@0:                     basic_json v = result.at(from_ptr);
ferencd@0: 
ferencd@0:                     // The copy is functionally identical to an "add"
ferencd@0:                     // operation at the target location using the value
ferencd@0:                     // specified in the "from" member.
ferencd@0:                     operation_add(ptr, v);
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 case patch_operations::test:
ferencd@0:                 {
ferencd@0:                     bool success = false;
ferencd@0:                     JSON_TRY
ferencd@0:                     {
ferencd@0:                         // check if "value" matches the one at "path"
ferencd@0:                         // the "path" location must exist - use at()
ferencd@0:                         success = (result.at(ptr) == get_value("test", "value", false));
ferencd@0:                     }
ferencd@0:                     JSON_INTERNAL_CATCH (out_of_range&)
ferencd@0:                     {
ferencd@0:                         // ignore out of range errors: success remains false
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     // throw an exception if test fails
ferencd@0:                     if (JSON_HEDLEY_UNLIKELY(not success))
ferencd@0:                     {
ferencd@0:                         JSON_THROW(other_error::create(501, "unsuccessful: " + val.dump()));
ferencd@0:                     }
ferencd@0: 
ferencd@0:                     break;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 default:
ferencd@0:                 {
ferencd@0:                     // op must be "add", "remove", "replace", "move", "copy", or
ferencd@0:                     // "test"
ferencd@0:                     JSON_THROW(parse_error::create(105, 0, "operation value '" + op + "' is invalid"));
ferencd@0:                 }
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief creates a diff as a JSON patch
ferencd@0: 
ferencd@0:     Creates a [JSON Patch](http://jsonpatch.com) so that value @a source can
ferencd@0:     be changed into the value @a target by calling @ref patch function.
ferencd@0: 
ferencd@0:     @invariant For two JSON values @a source and @a target, the following code
ferencd@0:     yields always `true`:
ferencd@0:     @code {.cpp}
ferencd@0:     source.patch(diff(source, target)) == target;
ferencd@0:     @endcode
ferencd@0: 
ferencd@0:     @note Currently, only `remove`, `add`, and `replace` operations are
ferencd@0:           generated.
ferencd@0: 
ferencd@0:     @param[in] source  JSON value to compare from
ferencd@0:     @param[in] target  JSON value to compare against
ferencd@0:     @param[in] path    helper value to create JSON pointers
ferencd@0: 
ferencd@0:     @return a JSON patch to convert the @a source to @a target
ferencd@0: 
ferencd@0:     @complexity Linear in the lengths of @a source and @a target.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows how a JSON patch is created as a
ferencd@0:     diff for two JSON values.,diff}
ferencd@0: 
ferencd@0:     @sa @ref patch -- apply a JSON patch
ferencd@0:     @sa @ref merge_patch -- apply a JSON Merge Patch
ferencd@0: 
ferencd@0:     @sa [RFC 6902 (JSON Patch)](https://tools.ietf.org/html/rfc6902)
ferencd@0: 
ferencd@0:     @since version 2.0.0
ferencd@0:     */
ferencd@0:     JSON_HEDLEY_WARN_UNUSED_RESULT
ferencd@0:     static basic_json diff(const basic_json& source, const basic_json& target,
ferencd@0:                            const std::string& path = "")
ferencd@0:     {
ferencd@0:         // the patch
ferencd@0:         basic_json result(value_t::array);
ferencd@0: 
ferencd@0:         // if the values are the same, return empty patch
ferencd@0:         if (source == target)
ferencd@0:         {
ferencd@0:             return result;
ferencd@0:         }
ferencd@0: 
ferencd@0:         if (source.type() != target.type())
ferencd@0:         {
ferencd@0:             // different types: replace value
ferencd@0:             result.push_back(
ferencd@0:             {
ferencd@0:                 {"op", "replace"}, {"path", path}, {"value", target}
ferencd@0:             });
ferencd@0:             return result;
ferencd@0:         }
ferencd@0: 
ferencd@0:         switch (source.type())
ferencd@0:         {
ferencd@0:             case value_t::array:
ferencd@0:             {
ferencd@0:                 // first pass: traverse common elements
ferencd@0:                 std::size_t i = 0;
ferencd@0:                 while (i < source.size() and i < target.size())
ferencd@0:                 {
ferencd@0:                     // recursive call to compare array values at index i
ferencd@0:                     auto temp_diff = diff(source[i], target[i], path + "/" + std::to_string(i));
ferencd@0:                     result.insert(result.end(), temp_diff.begin(), temp_diff.end());
ferencd@0:                     ++i;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // i now reached the end of at least one array
ferencd@0:                 // in a second pass, traverse the remaining elements
ferencd@0: 
ferencd@0:                 // remove my remaining elements
ferencd@0:                 const auto end_index = static_cast<difference_type>(result.size());
ferencd@0:                 while (i < source.size())
ferencd@0:                 {
ferencd@0:                     // add operations in reverse order to avoid invalid
ferencd@0:                     // indices
ferencd@0:                     result.insert(result.begin() + end_index, object(
ferencd@0:                     {
ferencd@0:                         {"op", "remove"},
ferencd@0:                         {"path", path + "/" + std::to_string(i)}
ferencd@0:                     }));
ferencd@0:                     ++i;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // add other remaining elements
ferencd@0:                 while (i < target.size())
ferencd@0:                 {
ferencd@0:                     result.push_back(
ferencd@0:                     {
ferencd@0:                         {"op", "add"},
ferencd@0:                         {"path", path + "/" + std::to_string(i)},
ferencd@0:                         {"value", target[i]}
ferencd@0:                     });
ferencd@0:                     ++i;
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             case value_t::object:
ferencd@0:             {
ferencd@0:                 // first pass: traverse this object's elements
ferencd@0:                 for (auto it = source.cbegin(); it != source.cend(); ++it)
ferencd@0:                 {
ferencd@0:                     // escape the key name to be used in a JSON patch
ferencd@0:                     const auto key = json_pointer::escape(it.key());
ferencd@0: 
ferencd@0:                     if (target.find(it.key()) != target.end())
ferencd@0:                     {
ferencd@0:                         // recursive call to compare object values at key it
ferencd@0:                         auto temp_diff = diff(it.value(), target[it.key()], path + "/" + key);
ferencd@0:                         result.insert(result.end(), temp_diff.begin(), temp_diff.end());
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                     {
ferencd@0:                         // found a key that is not in o -> remove it
ferencd@0:                         result.push_back(object(
ferencd@0:                         {
ferencd@0:                             {"op", "remove"}, {"path", path + "/" + key}
ferencd@0:                         }));
ferencd@0:                     }
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 // second pass: traverse other object's elements
ferencd@0:                 for (auto it = target.cbegin(); it != target.cend(); ++it)
ferencd@0:                 {
ferencd@0:                     if (source.find(it.key()) == source.end())
ferencd@0:                     {
ferencd@0:                         // found a key that is not in this -> add it
ferencd@0:                         const auto key = json_pointer::escape(it.key());
ferencd@0:                         result.push_back(
ferencd@0:                         {
ferencd@0:                             {"op", "add"}, {"path", path + "/" + key},
ferencd@0:                             {"value", it.value()}
ferencd@0:                         });
ferencd@0:                     }
ferencd@0:                 }
ferencd@0: 
ferencd@0:                 break;
ferencd@0:             }
ferencd@0: 
ferencd@0:             default:
ferencd@0:             {
ferencd@0:                 // both primitive type: replace value
ferencd@0:                 result.push_back(
ferencd@0:                 {
ferencd@0:                     {"op", "replace"}, {"path", path}, {"value", target}
ferencd@0:                 });
ferencd@0:                 break;
ferencd@0:             }
ferencd@0:         }
ferencd@0: 
ferencd@0:         return result;
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// @}
ferencd@0: 
ferencd@0:     ////////////////////////////////
ferencd@0:     // JSON Merge Patch functions //
ferencd@0:     ////////////////////////////////
ferencd@0: 
ferencd@0:     /// @name JSON Merge Patch functions
ferencd@0:     /// @{
ferencd@0: 
ferencd@0:     /*!
ferencd@0:     @brief applies a JSON Merge Patch
ferencd@0: 
ferencd@0:     The merge patch format is primarily intended for use with the HTTP PATCH
ferencd@0:     method as a means of describing a set of modifications to a target
ferencd@0:     resource's content. This function applies a merge patch to the current
ferencd@0:     JSON value.
ferencd@0: 
ferencd@0:     The function implements the following algorithm from Section 2 of
ferencd@0:     [RFC 7396 (JSON Merge Patch)](https://tools.ietf.org/html/rfc7396):
ferencd@0: 
ferencd@0:     ```
ferencd@0:     define MergePatch(Target, Patch):
ferencd@0:       if Patch is an Object:
ferencd@0:         if Target is not an Object:
ferencd@0:           Target = {} // Ignore the contents and set it to an empty Object
ferencd@0:         for each Name/Value pair in Patch:
ferencd@0:           if Value is null:
ferencd@0:             if Name exists in Target:
ferencd@0:               remove the Name/Value pair from Target
ferencd@0:           else:
ferencd@0:             Target[Name] = MergePatch(Target[Name], Value)
ferencd@0:         return Target
ferencd@0:       else:
ferencd@0:         return Patch
ferencd@0:     ```
ferencd@0: 
ferencd@0:     Thereby, `Target` is the current object; that is, the patch is applied to
ferencd@0:     the current value.
ferencd@0: 
ferencd@0:     @param[in] apply_patch  the patch to apply
ferencd@0: 
ferencd@0:     @complexity Linear in the lengths of @a patch.
ferencd@0: 
ferencd@0:     @liveexample{The following code shows how a JSON Merge Patch is applied to
ferencd@0:     a JSON document.,merge_patch}
ferencd@0: 
ferencd@0:     @sa @ref patch -- apply a JSON patch
ferencd@0:     @sa [RFC 7396 (JSON Merge Patch)](https://tools.ietf.org/html/rfc7396)
ferencd@0: 
ferencd@0:     @since version 3.0.0
ferencd@0:     */
ferencd@0:     void merge_patch(const basic_json& apply_patch)
ferencd@0:     {
ferencd@0:         if (apply_patch.is_object())
ferencd@0:         {
ferencd@0:             if (not is_object())
ferencd@0:             {
ferencd@0:                 *this = object();
ferencd@0:             }
ferencd@0:             for (auto it = apply_patch.begin(); it != apply_patch.end(); ++it)
ferencd@0:             {
ferencd@0:                 if (it.value().is_null())
ferencd@0:                 {
ferencd@0:                     erase(it.key());
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     operator[](it.key()).merge_patch(it.value());
ferencd@0:                 }
ferencd@0:             }
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             *this = apply_patch;
ferencd@0:         }
ferencd@0:     }
ferencd@0: 
ferencd@0:     /// @}
ferencd@0: };
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief user-defined to_string function for JSON values
ferencd@0: 
ferencd@0: This function implements a user-defined to_string  for JSON objects.
ferencd@0: 
ferencd@0: @param[in] j  a JSON object
ferencd@0: @return a std::string object
ferencd@0: */
ferencd@0: 
ferencd@0: NLOHMANN_BASIC_JSON_TPL_DECLARATION
ferencd@0: std::string to_string(const NLOHMANN_BASIC_JSON_TPL& j)
ferencd@0: {
ferencd@0:     return j.dump();
ferencd@0: }
ferencd@0: } // namespace nlohmann
ferencd@0: 
ferencd@0: ///////////////////////
ferencd@0: // nonmember support //
ferencd@0: ///////////////////////
ferencd@0: 
ferencd@0: // specialization of std::swap, and std::hash
ferencd@0: namespace std
ferencd@0: {
ferencd@0: 
ferencd@0: /// hash value for JSON objects
ferencd@0: template<>
ferencd@0: struct hash<nlohmann::json>
ferencd@0: {
ferencd@0:     /*!
ferencd@0:     @brief return a hash value for a JSON object
ferencd@0: 
ferencd@0:     @since version 1.0.0
ferencd@0:     */
ferencd@0:     std::size_t operator()(const nlohmann::json& j) const
ferencd@0:     {
ferencd@0:         // a naive hashing via the string representation
ferencd@0:         const auto& h = hash<nlohmann::json::string_t>();
ferencd@0:         return h(j.dump());
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: /// specialization for std::less<value_t>
ferencd@0: /// @note: do not remove the space after '<',
ferencd@0: ///        see https://github.com/nlohmann/json/pull/679
ferencd@0: template<>
ferencd@0: struct less< ::nlohmann::detail::value_t>
ferencd@0: {
ferencd@0:     /*!
ferencd@0:     @brief compare two value_t enum values
ferencd@0:     @since version 3.0.0
ferencd@0:     */
ferencd@0:     bool operator()(nlohmann::detail::value_t lhs,
ferencd@0:                     nlohmann::detail::value_t rhs) const noexcept
ferencd@0:     {
ferencd@0:         return nlohmann::detail::operator<(lhs, rhs);
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief exchanges the values of two JSON objects
ferencd@0: 
ferencd@0: @since version 1.0.0
ferencd@0: */
ferencd@0: template<>
ferencd@0: inline void swap<nlohmann::json>(nlohmann::json& j1, nlohmann::json& j2) noexcept(
ferencd@0:     is_nothrow_move_constructible<nlohmann::json>::value and
ferencd@0:     is_nothrow_move_assignable<nlohmann::json>::value
ferencd@0: )
ferencd@0: {
ferencd@0:     j1.swap(j2);
ferencd@0: }
ferencd@0: 
ferencd@0: } // namespace std
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief user-defined string literal for JSON values
ferencd@0: 
ferencd@0: This operator implements a user-defined string literal for JSON objects. It
ferencd@0: can be used by adding `"_json"` to a string literal and returns a JSON object
ferencd@0: if no parse error occurred.
ferencd@0: 
ferencd@0: @param[in] s  a string representation of a JSON object
ferencd@0: @param[in] n  the length of string @a s
ferencd@0: @return a JSON object
ferencd@0: 
ferencd@0: @since version 1.0.0
ferencd@0: */
ferencd@0: JSON_HEDLEY_NON_NULL(1)
ferencd@0: inline nlohmann::json operator "" _json(const char* s, std::size_t n)
ferencd@0: {
ferencd@0:     return nlohmann::json::parse(s, s + n);
ferencd@0: }
ferencd@0: 
ferencd@0: /*!
ferencd@0: @brief user-defined string literal for JSON pointer
ferencd@0: 
ferencd@0: This operator implements a user-defined string literal for JSON Pointers. It
ferencd@0: can be used by adding `"_json_pointer"` to a string literal and returns a JSON pointer
ferencd@0: object if no parse error occurred.
ferencd@0: 
ferencd@0: @param[in] s  a string representation of a JSON Pointer
ferencd@0: @param[in] n  the length of string @a s
ferencd@0: @return a JSON pointer object
ferencd@0: 
ferencd@0: @since version 2.0.0
ferencd@0: */
ferencd@0: JSON_HEDLEY_NON_NULL(1)
ferencd@0: inline nlohmann::json::json_pointer operator "" _json_pointer(const char* s, std::size_t n)
ferencd@0: {
ferencd@0:     return nlohmann::json::json_pointer(std::string(s, n));
ferencd@0: }
ferencd@0: 
ferencd@0: // #include <nlohmann/detail/macro_unscope.hpp>
ferencd@0: 
ferencd@0: 
ferencd@0: // restore GCC/clang diagnostic settings
ferencd@0: #if defined(__clang__) || defined(__GNUC__) || defined(__GNUG__)
ferencd@0:     #pragma GCC diagnostic pop
ferencd@0: #endif
ferencd@0: #if defined(__clang__)
ferencd@0:     #pragma GCC diagnostic pop
ferencd@0: #endif
ferencd@0: 
ferencd@0: // clean up
ferencd@0: #undef JSON_INTERNAL_CATCH
ferencd@0: #undef JSON_CATCH
ferencd@0: #undef JSON_THROW
ferencd@0: #undef JSON_TRY
ferencd@0: #undef JSON_HAS_CPP_14
ferencd@0: #undef JSON_HAS_CPP_17
ferencd@0: #undef NLOHMANN_BASIC_JSON_TPL_DECLARATION
ferencd@0: #undef NLOHMANN_BASIC_JSON_TPL
ferencd@0: 
ferencd@0: // #include <nlohmann/thirdparty/hedley/hedley_undef.hpp>
ferencd@0: #undef JSON_HEDLEY_ALWAYS_INLINE
ferencd@0: #undef JSON_HEDLEY_ARM_VERSION
ferencd@0: #undef JSON_HEDLEY_ARM_VERSION_CHECK
ferencd@0: #undef JSON_HEDLEY_ARRAY_PARAM
ferencd@0: #undef JSON_HEDLEY_ASSUME
ferencd@0: #undef JSON_HEDLEY_BEGIN_C_DECLS
ferencd@0: #undef JSON_HEDLEY_CLANG_HAS_ATTRIBUTE
ferencd@0: #undef JSON_HEDLEY_CLANG_HAS_BUILTIN
ferencd@0: #undef JSON_HEDLEY_CLANG_HAS_CPP_ATTRIBUTE
ferencd@0: #undef JSON_HEDLEY_CLANG_HAS_DECLSPEC_DECLSPEC_ATTRIBUTE
ferencd@0: #undef JSON_HEDLEY_CLANG_HAS_EXTENSION
ferencd@0: #undef JSON_HEDLEY_CLANG_HAS_FEATURE
ferencd@0: #undef JSON_HEDLEY_CLANG_HAS_WARNING
ferencd@0: #undef JSON_HEDLEY_COMPCERT_VERSION
ferencd@0: #undef JSON_HEDLEY_COMPCERT_VERSION_CHECK
ferencd@0: #undef JSON_HEDLEY_CONCAT
ferencd@0: #undef JSON_HEDLEY_CONCAT_EX
ferencd@0: #undef JSON_HEDLEY_CONST
ferencd@0: #undef JSON_HEDLEY_CONSTEXPR
ferencd@0: #undef JSON_HEDLEY_CONST_CAST
ferencd@0: #undef JSON_HEDLEY_CPP_CAST
ferencd@0: #undef JSON_HEDLEY_CRAY_VERSION
ferencd@0: #undef JSON_HEDLEY_CRAY_VERSION_CHECK
ferencd@0: #undef JSON_HEDLEY_C_DECL
ferencd@0: #undef JSON_HEDLEY_DEPRECATED
ferencd@0: #undef JSON_HEDLEY_DEPRECATED_FOR
ferencd@0: #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_CAST_QUAL
ferencd@0: #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_DEPRECATED
ferencd@0: #undef JSON_HEDLEY_DIAGNOSTIC_DISABLE_UNKNOWN_PRAGMAS
ferencd@0: #undef JSON_HEDLEY_DIAGNOSTIC_POP
ferencd@0: #undef JSON_HEDLEY_DIAGNOSTIC_PUSH
ferencd@0: #undef JSON_HEDLEY_DMC_VERSION
ferencd@0: #undef JSON_HEDLEY_DMC_VERSION_CHECK
ferencd@0: #undef JSON_HEDLEY_EMSCRIPTEN_VERSION
ferencd@0: #undef JSON_HEDLEY_EMSCRIPTEN_VERSION_CHECK
ferencd@0: #undef JSON_HEDLEY_END_C_DECLS
ferencd@0: #undef JSON_HEDLEY_FALL_THROUGH
ferencd@0: #undef JSON_HEDLEY_FLAGS
ferencd@0: #undef JSON_HEDLEY_FLAGS_CAST
ferencd@0: #undef JSON_HEDLEY_GCC_HAS_ATTRIBUTE
ferencd@0: #undef JSON_HEDLEY_GCC_HAS_BUILTIN
ferencd@0: #undef JSON_HEDLEY_GCC_HAS_CPP_ATTRIBUTE
ferencd@0: #undef JSON_HEDLEY_GCC_HAS_DECLSPEC_ATTRIBUTE
ferencd@0: #undef JSON_HEDLEY_GCC_HAS_EXTENSION
ferencd@0: #undef JSON_HEDLEY_GCC_HAS_FEATURE
ferencd@0: #undef JSON_HEDLEY_GCC_HAS_WARNING
ferencd@0: #undef JSON_HEDLEY_GCC_NOT_CLANG_VERSION_CHECK
ferencd@0: #undef JSON_HEDLEY_GCC_VERSION
ferencd@0: #undef JSON_HEDLEY_GCC_VERSION_CHECK
ferencd@0: #undef JSON_HEDLEY_GNUC_HAS_ATTRIBUTE
ferencd@0: #undef JSON_HEDLEY_GNUC_HAS_BUILTIN
ferencd@0: #undef JSON_HEDLEY_GNUC_HAS_CPP_ATTRIBUTE
ferencd@0: #undef JSON_HEDLEY_GNUC_HAS_DECLSPEC_ATTRIBUTE
ferencd@0: #undef JSON_HEDLEY_GNUC_HAS_EXTENSION
ferencd@0: #undef JSON_HEDLEY_GNUC_HAS_FEATURE
ferencd@0: #undef JSON_HEDLEY_GNUC_HAS_WARNING
ferencd@0: #undef JSON_HEDLEY_GNUC_VERSION
ferencd@0: #undef JSON_HEDLEY_GNUC_VERSION_CHECK
ferencd@0: #undef JSON_HEDLEY_HAS_ATTRIBUTE
ferencd@0: #undef JSON_HEDLEY_HAS_BUILTIN
ferencd@0: #undef JSON_HEDLEY_HAS_CPP_ATTRIBUTE
ferencd@0: #undef JSON_HEDLEY_HAS_DECLSPEC_ATTRIBUTE
ferencd@0: #undef JSON_HEDLEY_HAS_EXTENSION
ferencd@0: #undef JSON_HEDLEY_HAS_FEATURE
ferencd@0: #undef JSON_HEDLEY_HAS_WARNING
ferencd@0: #undef JSON_HEDLEY_IAR_VERSION
ferencd@0: #undef JSON_HEDLEY_IAR_VERSION_CHECK
ferencd@0: #undef JSON_HEDLEY_IBM_VERSION
ferencd@0: #undef JSON_HEDLEY_IBM_VERSION_CHECK
ferencd@0: #undef JSON_HEDLEY_IMPORT
ferencd@0: #undef JSON_HEDLEY_INLINE
ferencd@0: #undef JSON_HEDLEY_INTEL_VERSION
ferencd@0: #undef JSON_HEDLEY_INTEL_VERSION_CHECK
ferencd@0: #undef JSON_HEDLEY_IS_CONSTANT
ferencd@0: #undef JSON_HEDLEY_LIKELY
ferencd@0: #undef JSON_HEDLEY_MALLOC
ferencd@0: #undef JSON_HEDLEY_MESSAGE
ferencd@0: #undef JSON_HEDLEY_MSVC_VERSION
ferencd@0: #undef JSON_HEDLEY_MSVC_VERSION_CHECK
ferencd@0: #undef JSON_HEDLEY_NEVER_INLINE
ferencd@0: #undef JSON_HEDLEY_NON_NULL
ferencd@0: #undef JSON_HEDLEY_NO_RETURN
ferencd@0: #undef JSON_HEDLEY_NO_THROW
ferencd@0: #undef JSON_HEDLEY_PELLES_VERSION
ferencd@0: #undef JSON_HEDLEY_PELLES_VERSION_CHECK
ferencd@0: #undef JSON_HEDLEY_PGI_VERSION
ferencd@0: #undef JSON_HEDLEY_PGI_VERSION_CHECK
ferencd@0: #undef JSON_HEDLEY_PREDICT
ferencd@0: #undef JSON_HEDLEY_PRINTF_FORMAT
ferencd@0: #undef JSON_HEDLEY_PRIVATE
ferencd@0: #undef JSON_HEDLEY_PUBLIC
ferencd@0: #undef JSON_HEDLEY_PURE
ferencd@0: #undef JSON_HEDLEY_REINTERPRET_CAST
ferencd@0: #undef JSON_HEDLEY_REQUIRE
ferencd@0: #undef JSON_HEDLEY_REQUIRE_CONSTEXPR
ferencd@0: #undef JSON_HEDLEY_REQUIRE_MSG
ferencd@0: #undef JSON_HEDLEY_RESTRICT
ferencd@0: #undef JSON_HEDLEY_RETURNS_NON_NULL
ferencd@0: #undef JSON_HEDLEY_SENTINEL
ferencd@0: #undef JSON_HEDLEY_STATIC_ASSERT
ferencd@0: #undef JSON_HEDLEY_STATIC_CAST
ferencd@0: #undef JSON_HEDLEY_STRINGIFY
ferencd@0: #undef JSON_HEDLEY_STRINGIFY_EX
ferencd@0: #undef JSON_HEDLEY_SUNPRO_VERSION
ferencd@0: #undef JSON_HEDLEY_SUNPRO_VERSION_CHECK
ferencd@0: #undef JSON_HEDLEY_TINYC_VERSION
ferencd@0: #undef JSON_HEDLEY_TINYC_VERSION_CHECK
ferencd@0: #undef JSON_HEDLEY_TI_VERSION
ferencd@0: #undef JSON_HEDLEY_TI_VERSION_CHECK
ferencd@0: #undef JSON_HEDLEY_UNAVAILABLE
ferencd@0: #undef JSON_HEDLEY_UNLIKELY
ferencd@0: #undef JSON_HEDLEY_UNPREDICTABLE
ferencd@0: #undef JSON_HEDLEY_UNREACHABLE
ferencd@0: #undef JSON_HEDLEY_UNREACHABLE_RETURN
ferencd@0: #undef JSON_HEDLEY_VERSION
ferencd@0: #undef JSON_HEDLEY_VERSION_DECODE_MAJOR
ferencd@0: #undef JSON_HEDLEY_VERSION_DECODE_MINOR
ferencd@0: #undef JSON_HEDLEY_VERSION_DECODE_REVISION
ferencd@0: #undef JSON_HEDLEY_VERSION_ENCODE
ferencd@0: #undef JSON_HEDLEY_WARNING
ferencd@0: #undef JSON_HEDLEY_WARN_UNUSED_RESULT
ferencd@0: 
ferencd@0: 
ferencd@0: 
ferencd@0: #endif  // INCLUDE_NLOHMANN_JSON_HPP_