ferencd@0: #ifndef DATE_H
ferencd@0: #define DATE_H
ferencd@0: 
ferencd@0: // The MIT License (MIT)
ferencd@0: //
ferencd@0: // Copyright (c) 2015, 2016, 2017 Howard Hinnant
ferencd@0: // Copyright (c) 2016 Adrian Colomitchi
ferencd@0: // Copyright (c) 2017 Florian Dang
ferencd@0: // Copyright (c) 2017 Paul Thompson
ferencd@0: // Copyright (c) 2018, 2019 Tomasz Kamiński
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: // Our apologies.  When the previous paragraph was written, lowercase had not yet
ferencd@0: // been invented (that would involve another several millennia of evolution).
ferencd@0: // We did not mean to shout.
ferencd@0: 
ferencd@0: #ifndef HAS_STRING_VIEW
ferencd@0: #  if __cplusplus >= 201703 || (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L)
ferencd@0: #    define HAS_STRING_VIEW 1
ferencd@0: #  else
ferencd@0: #    define HAS_STRING_VIEW 0
ferencd@0: #  endif
ferencd@0: #endif  // HAS_STRING_VIEW
ferencd@0: 
ferencd@0: #include <cassert>
ferencd@0: #include <algorithm>
ferencd@0: #include <cctype>
ferencd@0: #include <chrono>
ferencd@0: #include <climits>
ferencd@0: #if !(__cplusplus >= 201402)
ferencd@0: #  include <cmath>
ferencd@0: #endif
ferencd@0: #include <cstddef>
ferencd@0: #include <cstdint>
ferencd@0: #include <cstdlib>
ferencd@0: #include <ctime>
ferencd@0: #include <ios>
ferencd@0: #include <istream>
ferencd@0: #include <iterator>
ferencd@0: #include <limits>
ferencd@0: #include <locale>
ferencd@0: #include <memory>
ferencd@0: #include <ostream>
ferencd@0: #include <ratio>
ferencd@0: #include <sstream>
ferencd@0: #include <stdexcept>
ferencd@0: #include <string>
ferencd@0: #if HAS_STRING_VIEW
ferencd@0: # include <string_view>
ferencd@0: #endif
ferencd@0: #include <utility>
ferencd@0: #include <type_traits>
ferencd@0: 
ferencd@0: #ifdef __GNUC__
ferencd@0: # pragma GCC diagnostic push
ferencd@0: # if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR > 7)
ferencd@0: #  pragma GCC diagnostic ignored "-Wpedantic"
ferencd@0: # endif
ferencd@0: # if __GNUC__ < 5
ferencd@0:    // GCC 4.9 Bug 61489 Wrong warning with -Wmissing-field-initializers
ferencd@0: #  pragma GCC diagnostic ignored "-Wmissing-field-initializers"
ferencd@0: # endif
ferencd@0: #endif
ferencd@0: 
ferencd@0: #ifdef _MSC_VER
ferencd@0: #   pragma warning(push)
ferencd@0: // warning C4127: conditional expression is constant
ferencd@0: #   pragma warning(disable : 4127)
ferencd@0: #endif
ferencd@0: 
ferencd@0: namespace date
ferencd@0: {
ferencd@0: 
ferencd@0: //---------------+
ferencd@0: // Configuration |
ferencd@0: //---------------+
ferencd@0: 
ferencd@0: #ifndef ONLY_C_LOCALE
ferencd@0: #  define ONLY_C_LOCALE 0
ferencd@0: #endif
ferencd@0: 
ferencd@0: #if defined(_MSC_VER) && (!defined(__clang__) || (_MSC_VER < 1910))
ferencd@0: // MSVC
ferencd@0: #  ifndef _SILENCE_CXX17_UNCAUGHT_EXCEPTION_DEPRECATION_WARNING
ferencd@0: #    define _SILENCE_CXX17_UNCAUGHT_EXCEPTION_DEPRECATION_WARNING
ferencd@0: #  endif
ferencd@0: #  if _MSC_VER < 1910
ferencd@0: //   before VS2017
ferencd@0: #    define CONSTDATA const
ferencd@0: #    define CONSTCD11
ferencd@0: #    define CONSTCD14
ferencd@0: #    define NOEXCEPT _NOEXCEPT
ferencd@0: #  else
ferencd@0: //   VS2017 and later
ferencd@0: #    define CONSTDATA constexpr const
ferencd@0: #    define CONSTCD11 constexpr
ferencd@0: #    define CONSTCD14 constexpr
ferencd@0: #    define NOEXCEPT noexcept
ferencd@0: #  endif
ferencd@0: 
ferencd@0: #elif defined(__SUNPRO_CC) && __SUNPRO_CC <= 0x5150
ferencd@0: // Oracle Developer Studio 12.6 and earlier
ferencd@0: #  define CONSTDATA constexpr const
ferencd@0: #  define CONSTCD11 constexpr
ferencd@0: #  define CONSTCD14
ferencd@0: #  define NOEXCEPT noexcept
ferencd@0: 
ferencd@0: #elif __cplusplus >= 201402
ferencd@0: // C++14
ferencd@0: #  define CONSTDATA constexpr const
ferencd@0: #  define CONSTCD11 constexpr
ferencd@0: #  define CONSTCD14 constexpr
ferencd@0: #  define NOEXCEPT noexcept
ferencd@0: #else
ferencd@0: // C++11
ferencd@0: #  define CONSTDATA constexpr const
ferencd@0: #  define CONSTCD11 constexpr
ferencd@0: #  define CONSTCD14
ferencd@0: #  define NOEXCEPT noexcept
ferencd@0: #endif
ferencd@0: 
ferencd@0: #ifndef HAS_UNCAUGHT_EXCEPTIONS
ferencd@0: #  if __cplusplus > 201703 || (defined(_MSVC_LANG) && _MSVC_LANG > 201703L)
ferencd@0: #    define HAS_UNCAUGHT_EXCEPTIONS 1
ferencd@0: #  else
ferencd@0: #    define HAS_UNCAUGHT_EXCEPTIONS 0
ferencd@0: #  endif
ferencd@0: #endif  // HAS_UNCAUGHT_EXCEPTIONS
ferencd@0: 
ferencd@0: #ifndef HAS_VOID_T
ferencd@0: #  if __cplusplus >= 201703 || (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L)
ferencd@0: #    define HAS_VOID_T 1
ferencd@0: #  else
ferencd@0: #    define HAS_VOID_T 0
ferencd@0: #  endif
ferencd@0: #endif  // HAS_VOID_T
ferencd@0: 
ferencd@0: // Protect from Oracle sun macro
ferencd@0: #ifdef sun
ferencd@0: #  undef sun
ferencd@0: #endif
ferencd@0: 
ferencd@0: //-----------+
ferencd@0: // Interface |
ferencd@0: //-----------+
ferencd@0: 
ferencd@0: // durations
ferencd@0: 
ferencd@0: using days = std::chrono::duration
ferencd@0:     <int, std::ratio_multiply<std::ratio<24>, std::chrono::hours::period>::type>;
ferencd@0: 
ferencd@0: using weeks = std::chrono::duration
ferencd@0:     <int, std::ratio_multiply<std::ratio<7>, days::period>::type>;
ferencd@0: 
ferencd@0: using years = std::chrono::duration
ferencd@0:     <int, std::ratio_multiply<std::ratio<146097, 400>, days::period>::type>;
ferencd@0: 
ferencd@0: using months = std::chrono::duration
ferencd@0:     <int, std::ratio_divide<years::period, std::ratio<12>>::type>;
ferencd@0: 
ferencd@0: // time_point
ferencd@0: 
ferencd@0: template <class Duration>
ferencd@0:     using sys_time = std::chrono::time_point<std::chrono::system_clock, Duration>;
ferencd@0: 
ferencd@0: using sys_days    = sys_time<days>;
ferencd@0: using sys_seconds = sys_time<std::chrono::seconds>;
ferencd@0: 
ferencd@0: struct local_t {};
ferencd@0: 
ferencd@0: template <class Duration>
ferencd@0:     using local_time = std::chrono::time_point<local_t, Duration>;
ferencd@0: 
ferencd@0: using local_seconds = local_time<std::chrono::seconds>;
ferencd@0: using local_days    = local_time<days>;
ferencd@0: 
ferencd@0: // types
ferencd@0: 
ferencd@0: struct last_spec
ferencd@0: {
ferencd@0:     explicit last_spec() = default;
ferencd@0: };
ferencd@0: 
ferencd@0: class day;
ferencd@0: class month;
ferencd@0: class year;
ferencd@0: 
ferencd@0: class weekday;
ferencd@0: class weekday_indexed;
ferencd@0: class weekday_last;
ferencd@0: 
ferencd@0: class month_day;
ferencd@0: class month_day_last;
ferencd@0: class month_weekday;
ferencd@0: class month_weekday_last;
ferencd@0: 
ferencd@0: class year_month;
ferencd@0: 
ferencd@0: class year_month_day;
ferencd@0: class year_month_day_last;
ferencd@0: class year_month_weekday;
ferencd@0: class year_month_weekday_last;
ferencd@0: 
ferencd@0: // date composition operators
ferencd@0: 
ferencd@0: CONSTCD11 year_month operator/(const year& y, const month& m) NOEXCEPT;
ferencd@0: CONSTCD11 year_month operator/(const year& y, int          m) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11 month_day operator/(const day& d, const month& m) NOEXCEPT;
ferencd@0: CONSTCD11 month_day operator/(const day& d, int          m) NOEXCEPT;
ferencd@0: CONSTCD11 month_day operator/(const month& m, const day& d) NOEXCEPT;
ferencd@0: CONSTCD11 month_day operator/(const month& m, int        d) NOEXCEPT;
ferencd@0: CONSTCD11 month_day operator/(int          m, const day& d) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11 month_day_last operator/(const month& m, last_spec) NOEXCEPT;
ferencd@0: CONSTCD11 month_day_last operator/(int          m, last_spec) NOEXCEPT;
ferencd@0: CONSTCD11 month_day_last operator/(last_spec, const month& m) NOEXCEPT;
ferencd@0: CONSTCD11 month_day_last operator/(last_spec, int          m) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11 month_weekday operator/(const month& m, const weekday_indexed& wdi) NOEXCEPT;
ferencd@0: CONSTCD11 month_weekday operator/(int          m, const weekday_indexed& wdi) NOEXCEPT;
ferencd@0: CONSTCD11 month_weekday operator/(const weekday_indexed& wdi, const month& m) NOEXCEPT;
ferencd@0: CONSTCD11 month_weekday operator/(const weekday_indexed& wdi, int          m) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11 month_weekday_last operator/(const month& m, const weekday_last& wdl) NOEXCEPT;
ferencd@0: CONSTCD11 month_weekday_last operator/(int          m, const weekday_last& wdl) NOEXCEPT;
ferencd@0: CONSTCD11 month_weekday_last operator/(const weekday_last& wdl, const month& m) NOEXCEPT;
ferencd@0: CONSTCD11 month_weekday_last operator/(const weekday_last& wdl, int          m) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11 year_month_day operator/(const year_month& ym, const day& d) NOEXCEPT;
ferencd@0: CONSTCD11 year_month_day operator/(const year_month& ym, int        d) NOEXCEPT;
ferencd@0: CONSTCD11 year_month_day operator/(const year& y, const month_day& md) NOEXCEPT;
ferencd@0: CONSTCD11 year_month_day operator/(int         y, const month_day& md) NOEXCEPT;
ferencd@0: CONSTCD11 year_month_day operator/(const month_day& md, const year& y) NOEXCEPT;
ferencd@0: CONSTCD11 year_month_day operator/(const month_day& md, int         y) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0:     year_month_day_last operator/(const year_month& ym,   last_spec) NOEXCEPT;
ferencd@0: CONSTCD11
ferencd@0:     year_month_day_last operator/(const year& y, const month_day_last& mdl) NOEXCEPT;
ferencd@0: CONSTCD11
ferencd@0:     year_month_day_last operator/(int         y, const month_day_last& mdl) NOEXCEPT;
ferencd@0: CONSTCD11
ferencd@0:     year_month_day_last operator/(const month_day_last& mdl, const year& y) NOEXCEPT;
ferencd@0: CONSTCD11
ferencd@0:     year_month_day_last operator/(const month_day_last& mdl, int         y) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: year_month_weekday
ferencd@0: operator/(const year_month& ym, const weekday_indexed& wdi) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: year_month_weekday
ferencd@0: operator/(const year&        y, const month_weekday&   mwd) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: year_month_weekday
ferencd@0: operator/(int                y, const month_weekday&   mwd) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: year_month_weekday
ferencd@0: operator/(const month_weekday& mwd, const year&          y) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: year_month_weekday
ferencd@0: operator/(const month_weekday& mwd, int                  y) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: year_month_weekday_last
ferencd@0: operator/(const year_month& ym, const weekday_last& wdl) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: year_month_weekday_last
ferencd@0: operator/(const year& y, const month_weekday_last& mwdl) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: year_month_weekday_last
ferencd@0: operator/(int         y, const month_weekday_last& mwdl) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: year_month_weekday_last
ferencd@0: operator/(const month_weekday_last& mwdl, const year& y) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: year_month_weekday_last
ferencd@0: operator/(const month_weekday_last& mwdl, int         y) NOEXCEPT;
ferencd@0: 
ferencd@0: // Detailed interface
ferencd@0: 
ferencd@0: // day
ferencd@0: 
ferencd@0: class day
ferencd@0: {
ferencd@0:     unsigned char d_;
ferencd@0: 
ferencd@0: public:
ferencd@0:     day() = default;
ferencd@0:     explicit CONSTCD11 day(unsigned d) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD14 day& operator++()    NOEXCEPT;
ferencd@0:     CONSTCD14 day  operator++(int) NOEXCEPT;
ferencd@0:     CONSTCD14 day& operator--()    NOEXCEPT;
ferencd@0:     CONSTCD14 day  operator--(int) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD14 day& operator+=(const days& d) NOEXCEPT;
ferencd@0:     CONSTCD14 day& operator-=(const days& d) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 explicit operator unsigned() const NOEXCEPT;
ferencd@0:     CONSTCD11 bool ok() const NOEXCEPT;
ferencd@0: };
ferencd@0: 
ferencd@0: CONSTCD11 bool operator==(const day& x, const day& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator!=(const day& x, const day& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator< (const day& x, const day& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator> (const day& x, const day& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator<=(const day& x, const day& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator>=(const day& x, const day& y) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11 day  operator+(const day&  x, const days& y) NOEXCEPT;
ferencd@0: CONSTCD11 day  operator+(const days& x, const day&  y) NOEXCEPT;
ferencd@0: CONSTCD11 day  operator-(const day&  x, const days& y) NOEXCEPT;
ferencd@0: CONSTCD11 days operator-(const day&  x, const day&  y) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const day& d);
ferencd@0: 
ferencd@0: // month
ferencd@0: 
ferencd@0: class month
ferencd@0: {
ferencd@0:     unsigned char m_;
ferencd@0: 
ferencd@0: public:
ferencd@0:     month() = default;
ferencd@0:     explicit CONSTCD11 month(unsigned m) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD14 month& operator++()    NOEXCEPT;
ferencd@0:     CONSTCD14 month  operator++(int) NOEXCEPT;
ferencd@0:     CONSTCD14 month& operator--()    NOEXCEPT;
ferencd@0:     CONSTCD14 month  operator--(int) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD14 month& operator+=(const months& m) NOEXCEPT;
ferencd@0:     CONSTCD14 month& operator-=(const months& m) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 explicit operator unsigned() const NOEXCEPT;
ferencd@0:     CONSTCD11 bool ok() const NOEXCEPT;
ferencd@0: };
ferencd@0: 
ferencd@0: CONSTCD11 bool operator==(const month& x, const month& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator!=(const month& x, const month& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator< (const month& x, const month& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator> (const month& x, const month& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator<=(const month& x, const month& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator>=(const month& x, const month& y) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD14 month  operator+(const month&  x, const months& y) NOEXCEPT;
ferencd@0: CONSTCD14 month  operator+(const months& x,  const month& y) NOEXCEPT;
ferencd@0: CONSTCD14 month  operator-(const month&  x, const months& y) NOEXCEPT;
ferencd@0: CONSTCD14 months operator-(const month&  x,  const month& y) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const month& m);
ferencd@0: 
ferencd@0: // year
ferencd@0: 
ferencd@0: class year
ferencd@0: {
ferencd@0:     short y_;
ferencd@0: 
ferencd@0: public:
ferencd@0:     year() = default;
ferencd@0:     explicit CONSTCD11 year(int y) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD14 year& operator++()    NOEXCEPT;
ferencd@0:     CONSTCD14 year  operator++(int) NOEXCEPT;
ferencd@0:     CONSTCD14 year& operator--()    NOEXCEPT;
ferencd@0:     CONSTCD14 year  operator--(int) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD14 year& operator+=(const years& y) NOEXCEPT;
ferencd@0:     CONSTCD14 year& operator-=(const years& y) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 year operator-() const NOEXCEPT;
ferencd@0:     CONSTCD11 year operator+() const NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 bool is_leap() const NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 explicit operator int() const NOEXCEPT;
ferencd@0:     CONSTCD11 bool ok() const NOEXCEPT;
ferencd@0: 
ferencd@0:     static CONSTCD11 year min() NOEXCEPT { return year{-32767}; }
ferencd@0:     static CONSTCD11 year max() NOEXCEPT { return year{32767}; }
ferencd@0: };
ferencd@0: 
ferencd@0: CONSTCD11 bool operator==(const year& x, const year& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator!=(const year& x, const year& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator< (const year& x, const year& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator> (const year& x, const year& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator<=(const year& x, const year& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator>=(const year& x, const year& y) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11 year  operator+(const year&  x, const years& y) NOEXCEPT;
ferencd@0: CONSTCD11 year  operator+(const years& x, const year&  y) NOEXCEPT;
ferencd@0: CONSTCD11 year  operator-(const year&  x, const years& y) NOEXCEPT;
ferencd@0: CONSTCD11 years operator-(const year&  x, const year&  y) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const year& y);
ferencd@0: 
ferencd@0: // weekday
ferencd@0: 
ferencd@0: class weekday
ferencd@0: {
ferencd@0:     unsigned char wd_;
ferencd@0: public:
ferencd@0:     weekday() = default;
ferencd@0:     explicit CONSTCD11 weekday(unsigned wd) NOEXCEPT;
ferencd@0:     CONSTCD14 weekday(const sys_days& dp) NOEXCEPT;
ferencd@0:     CONSTCD14 explicit weekday(const local_days& dp) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD14 weekday& operator++()    NOEXCEPT;
ferencd@0:     CONSTCD14 weekday  operator++(int) NOEXCEPT;
ferencd@0:     CONSTCD14 weekday& operator--()    NOEXCEPT;
ferencd@0:     CONSTCD14 weekday  operator--(int) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD14 weekday& operator+=(const days& d) NOEXCEPT;
ferencd@0:     CONSTCD14 weekday& operator-=(const days& d) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 bool ok() const NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 unsigned c_encoding() const NOEXCEPT;
ferencd@0:     CONSTCD11 unsigned iso_encoding() const NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 weekday_indexed operator[](unsigned index) const NOEXCEPT;
ferencd@0:     CONSTCD11 weekday_last    operator[](last_spec)      const NOEXCEPT;
ferencd@0: 
ferencd@0: private:
ferencd@0:     static CONSTCD14 unsigned char weekday_from_days(int z) NOEXCEPT;
ferencd@0: 
ferencd@0:     friend CONSTCD11 bool operator==(const weekday& x, const weekday& y) NOEXCEPT;
ferencd@0:     friend CONSTCD14 days operator-(const weekday& x, const weekday& y) NOEXCEPT;
ferencd@0:     friend CONSTCD14 weekday operator+(const weekday& x, const days& y) NOEXCEPT;
ferencd@0:     template<class CharT, class Traits>
ferencd@0:         friend std::basic_ostream<CharT, Traits>&
ferencd@0:             operator<<(std::basic_ostream<CharT, Traits>& os, const weekday& wd);
ferencd@0:     friend class weekday_indexed;
ferencd@0: };
ferencd@0: 
ferencd@0: CONSTCD11 bool operator==(const weekday& x, const weekday& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator!=(const weekday& x, const weekday& y) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD14 weekday operator+(const weekday& x, const days&    y) NOEXCEPT;
ferencd@0: CONSTCD14 weekday operator+(const days&    x, const weekday& y) NOEXCEPT;
ferencd@0: CONSTCD14 weekday operator-(const weekday& x, const days&    y) NOEXCEPT;
ferencd@0: CONSTCD14 days    operator-(const weekday& x, const weekday& y) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const weekday& wd);
ferencd@0: 
ferencd@0: // weekday_indexed
ferencd@0: 
ferencd@0: class weekday_indexed
ferencd@0: {
ferencd@0:     unsigned char wd_    : 4;
ferencd@0:     unsigned char index_ : 4;
ferencd@0: 
ferencd@0: public:
ferencd@0:     weekday_indexed() = default;
ferencd@0:     CONSTCD11 weekday_indexed(const date::weekday& wd, unsigned index) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 date::weekday weekday() const NOEXCEPT;
ferencd@0:     CONSTCD11 unsigned index() const NOEXCEPT;
ferencd@0:     CONSTCD11 bool ok() const NOEXCEPT;
ferencd@0: };
ferencd@0: 
ferencd@0: CONSTCD11 bool operator==(const weekday_indexed& x, const weekday_indexed& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator!=(const weekday_indexed& x, const weekday_indexed& y) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const weekday_indexed& wdi);
ferencd@0: 
ferencd@0: // weekday_last
ferencd@0: 
ferencd@0: class weekday_last
ferencd@0: {
ferencd@0:     date::weekday wd_;
ferencd@0: 
ferencd@0: public:
ferencd@0:     explicit CONSTCD11 weekday_last(const date::weekday& wd) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 date::weekday weekday() const NOEXCEPT;
ferencd@0:     CONSTCD11 bool ok() const NOEXCEPT;
ferencd@0: };
ferencd@0: 
ferencd@0: CONSTCD11 bool operator==(const weekday_last& x, const weekday_last& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator!=(const weekday_last& x, const weekday_last& y) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const weekday_last& wdl);
ferencd@0: 
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: 
ferencd@0: struct unspecified_month_disambiguator {};
ferencd@0: 
ferencd@0: }  // namespace detail
ferencd@0: 
ferencd@0: // year_month
ferencd@0: 
ferencd@0: class year_month
ferencd@0: {
ferencd@0:     date::year  y_;
ferencd@0:     date::month m_;
ferencd@0: 
ferencd@0: public:
ferencd@0:     year_month() = default;
ferencd@0:     CONSTCD11 year_month(const date::year& y, const date::month& m) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 date::year  year()  const NOEXCEPT;
ferencd@0:     CONSTCD11 date::month month() const NOEXCEPT;
ferencd@0: 
ferencd@0:     template<class = detail::unspecified_month_disambiguator>
ferencd@0:     CONSTCD14 year_month& operator+=(const months& dm) NOEXCEPT;
ferencd@0:     template<class = detail::unspecified_month_disambiguator>
ferencd@0:     CONSTCD14 year_month& operator-=(const months& dm) NOEXCEPT;
ferencd@0:     CONSTCD14 year_month& operator+=(const years& dy) NOEXCEPT;
ferencd@0:     CONSTCD14 year_month& operator-=(const years& dy) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 bool ok() const NOEXCEPT;
ferencd@0: };
ferencd@0: 
ferencd@0: CONSTCD11 bool operator==(const year_month& x, const year_month& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator!=(const year_month& x, const year_month& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator< (const year_month& x, const year_month& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator> (const year_month& x, const year_month& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator<=(const year_month& x, const year_month& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator>=(const year_month& x, const year_month& y) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class = detail::unspecified_month_disambiguator>
ferencd@0: CONSTCD14 year_month operator+(const year_month& ym, const months& dm) NOEXCEPT;
ferencd@0: template<class = detail::unspecified_month_disambiguator>
ferencd@0: CONSTCD14 year_month operator+(const months& dm, const year_month& ym) NOEXCEPT;
ferencd@0: template<class = detail::unspecified_month_disambiguator>
ferencd@0: CONSTCD14 year_month operator-(const year_month& ym, const months& dm) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11 months operator-(const year_month& x, const year_month& y) NOEXCEPT;
ferencd@0: CONSTCD11 year_month operator+(const year_month& ym, const years& dy) NOEXCEPT;
ferencd@0: CONSTCD11 year_month operator+(const years& dy, const year_month& ym) NOEXCEPT;
ferencd@0: CONSTCD11 year_month operator-(const year_month& ym, const years& dy) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const year_month& ym);
ferencd@0: 
ferencd@0: // month_day
ferencd@0: 
ferencd@0: class month_day
ferencd@0: {
ferencd@0:     date::month m_;
ferencd@0:     date::day   d_;
ferencd@0: 
ferencd@0: public:
ferencd@0:     month_day() = default;
ferencd@0:     CONSTCD11 month_day(const date::month& m, const date::day& d) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 date::month month() const NOEXCEPT;
ferencd@0:     CONSTCD11 date::day   day() const NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD14 bool ok() const NOEXCEPT;
ferencd@0: };
ferencd@0: 
ferencd@0: CONSTCD11 bool operator==(const month_day& x, const month_day& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator!=(const month_day& x, const month_day& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator< (const month_day& x, const month_day& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator> (const month_day& x, const month_day& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator<=(const month_day& x, const month_day& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator>=(const month_day& x, const month_day& y) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const month_day& md);
ferencd@0: 
ferencd@0: // month_day_last
ferencd@0: 
ferencd@0: class month_day_last
ferencd@0: {
ferencd@0:     date::month m_;
ferencd@0: 
ferencd@0: public:
ferencd@0:     CONSTCD11 explicit month_day_last(const date::month& m) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 date::month month() const NOEXCEPT;
ferencd@0:     CONSTCD11 bool ok() const NOEXCEPT;
ferencd@0: };
ferencd@0: 
ferencd@0: CONSTCD11 bool operator==(const month_day_last& x, const month_day_last& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator!=(const month_day_last& x, const month_day_last& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator< (const month_day_last& x, const month_day_last& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator> (const month_day_last& x, const month_day_last& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator<=(const month_day_last& x, const month_day_last& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator>=(const month_day_last& x, const month_day_last& y) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const month_day_last& mdl);
ferencd@0: 
ferencd@0: // month_weekday
ferencd@0: 
ferencd@0: class month_weekday
ferencd@0: {
ferencd@0:     date::month           m_;
ferencd@0:     date::weekday_indexed wdi_;
ferencd@0: public:
ferencd@0:     CONSTCD11 month_weekday(const date::month& m,
ferencd@0:                             const date::weekday_indexed& wdi) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 date::month           month()           const NOEXCEPT;
ferencd@0:     CONSTCD11 date::weekday_indexed weekday_indexed() const NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 bool ok() const NOEXCEPT;
ferencd@0: };
ferencd@0: 
ferencd@0: CONSTCD11 bool operator==(const month_weekday& x, const month_weekday& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator!=(const month_weekday& x, const month_weekday& y) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const month_weekday& mwd);
ferencd@0: 
ferencd@0: // month_weekday_last
ferencd@0: 
ferencd@0: class month_weekday_last
ferencd@0: {
ferencd@0:     date::month        m_;
ferencd@0:     date::weekday_last wdl_;
ferencd@0: 
ferencd@0: public:
ferencd@0:     CONSTCD11 month_weekday_last(const date::month& m,
ferencd@0:                                  const date::weekday_last& wd) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 date::month        month()        const NOEXCEPT;
ferencd@0:     CONSTCD11 date::weekday_last weekday_last() const NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 bool ok() const NOEXCEPT;
ferencd@0: };
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0:     bool operator==(const month_weekday_last& x, const month_weekday_last& y) NOEXCEPT;
ferencd@0: CONSTCD11
ferencd@0:     bool operator!=(const month_weekday_last& x, const month_weekday_last& y) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const month_weekday_last& mwdl);
ferencd@0: 
ferencd@0: // class year_month_day
ferencd@0: 
ferencd@0: class year_month_day
ferencd@0: {
ferencd@0:     date::year  y_;
ferencd@0:     date::month m_;
ferencd@0:     date::day   d_;
ferencd@0: 
ferencd@0: public:
ferencd@0:     year_month_day() = default;
ferencd@0:     CONSTCD11 year_month_day(const date::year& y, const date::month& m,
ferencd@0:                              const date::day& d) NOEXCEPT;
ferencd@0:     CONSTCD14 year_month_day(const year_month_day_last& ymdl) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD14 year_month_day(sys_days dp) NOEXCEPT;
ferencd@0:     CONSTCD14 explicit year_month_day(local_days dp) NOEXCEPT;
ferencd@0: 
ferencd@0:     template<class = detail::unspecified_month_disambiguator>
ferencd@0:     CONSTCD14 year_month_day& operator+=(const months& m) NOEXCEPT;
ferencd@0:     template<class = detail::unspecified_month_disambiguator>
ferencd@0:     CONSTCD14 year_month_day& operator-=(const months& m) NOEXCEPT;
ferencd@0:     CONSTCD14 year_month_day& operator+=(const years& y)  NOEXCEPT;
ferencd@0:     CONSTCD14 year_month_day& operator-=(const years& y)  NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 date::year  year()  const NOEXCEPT;
ferencd@0:     CONSTCD11 date::month month() const NOEXCEPT;
ferencd@0:     CONSTCD11 date::day   day()   const NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD14 operator sys_days() const NOEXCEPT;
ferencd@0:     CONSTCD14 explicit operator local_days() const NOEXCEPT;
ferencd@0:     CONSTCD14 bool ok() const NOEXCEPT;
ferencd@0: 
ferencd@0: private:
ferencd@0:     static CONSTCD14 year_month_day from_days(days dp) NOEXCEPT;
ferencd@0:     CONSTCD14 days to_days() const NOEXCEPT;
ferencd@0: };
ferencd@0: 
ferencd@0: CONSTCD11 bool operator==(const year_month_day& x, const year_month_day& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator!=(const year_month_day& x, const year_month_day& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator< (const year_month_day& x, const year_month_day& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator> (const year_month_day& x, const year_month_day& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator<=(const year_month_day& x, const year_month_day& y) NOEXCEPT;
ferencd@0: CONSTCD11 bool operator>=(const year_month_day& x, const year_month_day& y) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class = detail::unspecified_month_disambiguator>
ferencd@0: CONSTCD14 year_month_day operator+(const year_month_day& ymd, const months& dm) NOEXCEPT;
ferencd@0: template<class = detail::unspecified_month_disambiguator>
ferencd@0: CONSTCD14 year_month_day operator+(const months& dm, const year_month_day& ymd) NOEXCEPT;
ferencd@0: template<class = detail::unspecified_month_disambiguator>
ferencd@0: CONSTCD14 year_month_day operator-(const year_month_day& ymd, const months& dm) NOEXCEPT;
ferencd@0: CONSTCD11 year_month_day operator+(const year_month_day& ymd, const years& dy)  NOEXCEPT;
ferencd@0: CONSTCD11 year_month_day operator+(const years& dy, const year_month_day& ymd)  NOEXCEPT;
ferencd@0: CONSTCD11 year_month_day operator-(const year_month_day& ymd, const years& dy)  NOEXCEPT;
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const year_month_day& ymd);
ferencd@0: 
ferencd@0: // year_month_day_last
ferencd@0: 
ferencd@0: class year_month_day_last
ferencd@0: {
ferencd@0:     date::year           y_;
ferencd@0:     date::month_day_last mdl_;
ferencd@0: 
ferencd@0: public:
ferencd@0:     CONSTCD11 year_month_day_last(const date::year& y,
ferencd@0:                                   const date::month_day_last& mdl) NOEXCEPT;
ferencd@0: 
ferencd@0:     template<class = detail::unspecified_month_disambiguator>
ferencd@0:     CONSTCD14 year_month_day_last& operator+=(const months& m) NOEXCEPT;
ferencd@0:     template<class = detail::unspecified_month_disambiguator>
ferencd@0:     CONSTCD14 year_month_day_last& operator-=(const months& m) NOEXCEPT;
ferencd@0:     CONSTCD14 year_month_day_last& operator+=(const years& y)  NOEXCEPT;
ferencd@0:     CONSTCD14 year_month_day_last& operator-=(const years& y)  NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 date::year           year()           const NOEXCEPT;
ferencd@0:     CONSTCD11 date::month          month()          const NOEXCEPT;
ferencd@0:     CONSTCD11 date::month_day_last month_day_last() const NOEXCEPT;
ferencd@0:     CONSTCD14 date::day            day()            const NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD14 operator sys_days() const NOEXCEPT;
ferencd@0:     CONSTCD14 explicit operator local_days() const NOEXCEPT;
ferencd@0:     CONSTCD11 bool ok() const NOEXCEPT;
ferencd@0: };
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0:     bool operator==(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT;
ferencd@0: CONSTCD11
ferencd@0:     bool operator!=(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT;
ferencd@0: CONSTCD11
ferencd@0:     bool operator< (const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT;
ferencd@0: CONSTCD11
ferencd@0:     bool operator> (const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT;
ferencd@0: CONSTCD11
ferencd@0:     bool operator<=(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT;
ferencd@0: CONSTCD11
ferencd@0:     bool operator>=(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class = detail::unspecified_month_disambiguator>
ferencd@0: CONSTCD14
ferencd@0: year_month_day_last
ferencd@0: operator+(const year_month_day_last& ymdl, const months& dm) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class = detail::unspecified_month_disambiguator>
ferencd@0: CONSTCD14
ferencd@0: year_month_day_last
ferencd@0: operator+(const months& dm, const year_month_day_last& ymdl) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: year_month_day_last
ferencd@0: operator+(const year_month_day_last& ymdl, const years& dy) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: year_month_day_last
ferencd@0: operator+(const years& dy, const year_month_day_last& ymdl) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class = detail::unspecified_month_disambiguator>
ferencd@0: CONSTCD14
ferencd@0: year_month_day_last
ferencd@0: operator-(const year_month_day_last& ymdl, const months& dm) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: year_month_day_last
ferencd@0: operator-(const year_month_day_last& ymdl, const years& dy) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const year_month_day_last& ymdl);
ferencd@0: 
ferencd@0: // year_month_weekday
ferencd@0: 
ferencd@0: class year_month_weekday
ferencd@0: {
ferencd@0:     date::year            y_;
ferencd@0:     date::month           m_;
ferencd@0:     date::weekday_indexed wdi_;
ferencd@0: 
ferencd@0: public:
ferencd@0:     year_month_weekday() = default;
ferencd@0:     CONSTCD11 year_month_weekday(const date::year& y, const date::month& m,
ferencd@0:                                    const date::weekday_indexed& wdi) NOEXCEPT;
ferencd@0:     CONSTCD14 year_month_weekday(const sys_days& dp) NOEXCEPT;
ferencd@0:     CONSTCD14 explicit year_month_weekday(const local_days& dp) NOEXCEPT;
ferencd@0: 
ferencd@0:     template<class = detail::unspecified_month_disambiguator>
ferencd@0:     CONSTCD14 year_month_weekday& operator+=(const months& m) NOEXCEPT;
ferencd@0:     template<class = detail::unspecified_month_disambiguator>
ferencd@0:     CONSTCD14 year_month_weekday& operator-=(const months& m) NOEXCEPT;
ferencd@0:     CONSTCD14 year_month_weekday& operator+=(const years& y)  NOEXCEPT;
ferencd@0:     CONSTCD14 year_month_weekday& operator-=(const years& y)  NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 date::year year() const NOEXCEPT;
ferencd@0:     CONSTCD11 date::month month() const NOEXCEPT;
ferencd@0:     CONSTCD11 date::weekday weekday() const NOEXCEPT;
ferencd@0:     CONSTCD11 unsigned index() const NOEXCEPT;
ferencd@0:     CONSTCD11 date::weekday_indexed weekday_indexed() const NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD14 operator sys_days() const NOEXCEPT;
ferencd@0:     CONSTCD14 explicit operator local_days() const NOEXCEPT;
ferencd@0:     CONSTCD14 bool ok() const NOEXCEPT;
ferencd@0: 
ferencd@0: private:
ferencd@0:     static CONSTCD14 year_month_weekday from_days(days dp) NOEXCEPT;
ferencd@0:     CONSTCD14 days to_days() const NOEXCEPT;
ferencd@0: };
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0:     bool operator==(const year_month_weekday& x, const year_month_weekday& y) NOEXCEPT;
ferencd@0: CONSTCD11
ferencd@0:     bool operator!=(const year_month_weekday& x, const year_month_weekday& y) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class = detail::unspecified_month_disambiguator>
ferencd@0: CONSTCD14
ferencd@0: year_month_weekday
ferencd@0: operator+(const year_month_weekday& ymwd, const months& dm) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class = detail::unspecified_month_disambiguator>
ferencd@0: CONSTCD14
ferencd@0: year_month_weekday
ferencd@0: operator+(const months& dm, const year_month_weekday& ymwd) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: year_month_weekday
ferencd@0: operator+(const year_month_weekday& ymwd, const years& dy) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: year_month_weekday
ferencd@0: operator+(const years& dy, const year_month_weekday& ymwd) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class = detail::unspecified_month_disambiguator>
ferencd@0: CONSTCD14
ferencd@0: year_month_weekday
ferencd@0: operator-(const year_month_weekday& ymwd, const months& dm) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: year_month_weekday
ferencd@0: operator-(const year_month_weekday& ymwd, const years& dy) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const year_month_weekday& ymwdi);
ferencd@0: 
ferencd@0: // year_month_weekday_last
ferencd@0: 
ferencd@0: class year_month_weekday_last
ferencd@0: {
ferencd@0:     date::year y_;
ferencd@0:     date::month m_;
ferencd@0:     date::weekday_last wdl_;
ferencd@0: 
ferencd@0: public:
ferencd@0:     CONSTCD11 year_month_weekday_last(const date::year& y, const date::month& m,
ferencd@0:                                       const date::weekday_last& wdl) NOEXCEPT;
ferencd@0: 
ferencd@0:     template<class = detail::unspecified_month_disambiguator>
ferencd@0:     CONSTCD14 year_month_weekday_last& operator+=(const months& m) NOEXCEPT;
ferencd@0:     template<class = detail::unspecified_month_disambiguator>
ferencd@0:     CONSTCD14 year_month_weekday_last& operator-=(const months& m) NOEXCEPT;
ferencd@0:     CONSTCD14 year_month_weekday_last& operator+=(const years& y) NOEXCEPT;
ferencd@0:     CONSTCD14 year_month_weekday_last& operator-=(const years& y) NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD11 date::year year() const NOEXCEPT;
ferencd@0:     CONSTCD11 date::month month() const NOEXCEPT;
ferencd@0:     CONSTCD11 date::weekday weekday() const NOEXCEPT;
ferencd@0:     CONSTCD11 date::weekday_last weekday_last() const NOEXCEPT;
ferencd@0: 
ferencd@0:     CONSTCD14 operator sys_days() const NOEXCEPT;
ferencd@0:     CONSTCD14 explicit operator local_days() const NOEXCEPT;
ferencd@0:     CONSTCD11 bool ok() const NOEXCEPT;
ferencd@0: 
ferencd@0: private:
ferencd@0:     CONSTCD14 days to_days() const NOEXCEPT;
ferencd@0: };
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: bool
ferencd@0: operator==(const year_month_weekday_last& x, const year_month_weekday_last& y) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: bool
ferencd@0: operator!=(const year_month_weekday_last& x, const year_month_weekday_last& y) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class = detail::unspecified_month_disambiguator>
ferencd@0: CONSTCD14
ferencd@0: year_month_weekday_last
ferencd@0: operator+(const year_month_weekday_last& ymwdl, const months& dm) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class = detail::unspecified_month_disambiguator>
ferencd@0: CONSTCD14
ferencd@0: year_month_weekday_last
ferencd@0: operator+(const months& dm, const year_month_weekday_last& ymwdl) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: year_month_weekday_last
ferencd@0: operator+(const year_month_weekday_last& ymwdl, const years& dy) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: year_month_weekday_last
ferencd@0: operator+(const years& dy, const year_month_weekday_last& ymwdl) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class = detail::unspecified_month_disambiguator>
ferencd@0: CONSTCD14
ferencd@0: year_month_weekday_last
ferencd@0: operator-(const year_month_weekday_last& ymwdl, const months& dm) NOEXCEPT;
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: year_month_weekday_last
ferencd@0: operator-(const year_month_weekday_last& ymwdl, const years& dy) NOEXCEPT;
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const year_month_weekday_last& ymwdl);
ferencd@0: 
ferencd@0: #if !defined(_MSC_VER) || (_MSC_VER >= 1900)
ferencd@0: inline namespace literals
ferencd@0: {
ferencd@0: 
ferencd@0: CONSTCD11 date::day  operator "" _d(unsigned long long d) NOEXCEPT;
ferencd@0: CONSTCD11 date::year operator "" _y(unsigned long long y) NOEXCEPT;
ferencd@0: 
ferencd@0: }  // inline namespace literals
ferencd@0: #endif // !defined(_MSC_VER) || (_MSC_VER >= 1900)
ferencd@0: 
ferencd@0: // CONSTDATA date::month January{1};
ferencd@0: // CONSTDATA date::month February{2};
ferencd@0: // CONSTDATA date::month March{3};
ferencd@0: // CONSTDATA date::month April{4};
ferencd@0: // CONSTDATA date::month May{5};
ferencd@0: // CONSTDATA date::month June{6};
ferencd@0: // CONSTDATA date::month July{7};
ferencd@0: // CONSTDATA date::month August{8};
ferencd@0: // CONSTDATA date::month September{9};
ferencd@0: // CONSTDATA date::month October{10};
ferencd@0: // CONSTDATA date::month November{11};
ferencd@0: // CONSTDATA date::month December{12};
ferencd@0: //
ferencd@0: // CONSTDATA date::weekday Sunday{0u};
ferencd@0: // CONSTDATA date::weekday Monday{1u};
ferencd@0: // CONSTDATA date::weekday Tuesday{2u};
ferencd@0: // CONSTDATA date::weekday Wednesday{3u};
ferencd@0: // CONSTDATA date::weekday Thursday{4u};
ferencd@0: // CONSTDATA date::weekday Friday{5u};
ferencd@0: // CONSTDATA date::weekday Saturday{6u};
ferencd@0: 
ferencd@0: #if HAS_VOID_T
ferencd@0: 
ferencd@0: template <class T, class = std::void_t<>>
ferencd@0: struct is_clock
ferencd@0:     : std::false_type
ferencd@0: {};
ferencd@0: 
ferencd@0: template <class T>
ferencd@0: struct is_clock<T, std::void_t<decltype(T::now()), typename T::rep, typename T::period,
ferencd@0:                                typename T::duration, typename T::time_point,
ferencd@0:                                decltype(T::is_steady)>>
ferencd@0:     : std::true_type
ferencd@0: {};
ferencd@0: 
ferencd@0: #endif  // HAS_VOID_T
ferencd@0: 
ferencd@0: //----------------+
ferencd@0: // Implementation |
ferencd@0: //----------------+
ferencd@0: 
ferencd@0: // utilities
ferencd@0: namespace detail {
ferencd@0: 
ferencd@0: template<class CharT, class Traits = std::char_traits<CharT>>
ferencd@0: class save_istream
ferencd@0: {
ferencd@0: protected:
ferencd@0:     std::basic_ios<CharT, Traits>& is_;
ferencd@0:     CharT fill_;
ferencd@0:     std::ios::fmtflags flags_;
ferencd@0:     std::streamsize width_;
ferencd@0:     std::basic_ostream<CharT, Traits>* tie_;
ferencd@0:     std::locale loc_;
ferencd@0: 
ferencd@0: public:
ferencd@0:     ~save_istream()
ferencd@0:     {
ferencd@0:         is_.fill(fill_);
ferencd@0:         is_.flags(flags_);
ferencd@0:         is_.width(width_);
ferencd@0:         is_.imbue(loc_);
ferencd@0:         is_.tie(tie_);
ferencd@0:     }
ferencd@0: 
ferencd@0:     save_istream(const save_istream&) = delete;
ferencd@0:     save_istream& operator=(const save_istream&) = delete;
ferencd@0: 
ferencd@0:     explicit save_istream(std::basic_ios<CharT, Traits>& is)
ferencd@0:         : is_(is)
ferencd@0:         , fill_(is.fill())
ferencd@0:         , flags_(is.flags())
ferencd@0:         , width_(is.width(0))
ferencd@0:         , tie_(is.tie(nullptr))
ferencd@0:         , loc_(is.getloc())
ferencd@0:         {
ferencd@0:             if (tie_ != nullptr)
ferencd@0:                 tie_->flush();
ferencd@0:         }
ferencd@0: };
ferencd@0: 
ferencd@0: template<class CharT, class Traits = std::char_traits<CharT>>
ferencd@0: class save_ostream
ferencd@0:     : private save_istream<CharT, Traits>
ferencd@0: {
ferencd@0: public:
ferencd@0:     ~save_ostream()
ferencd@0:     {
ferencd@0:         if ((this->flags_ & std::ios::unitbuf) &&
ferencd@0: #if HAS_UNCAUGHT_EXCEPTIONS
ferencd@0:                 std::uncaught_exceptions() == 0 &&
ferencd@0: #else
ferencd@0:                 !std::uncaught_exception() &&
ferencd@0: #endif
ferencd@0:                 this->is_.good())
ferencd@0:             this->is_.rdbuf()->pubsync();
ferencd@0:     }
ferencd@0: 
ferencd@0:     save_ostream(const save_ostream&) = delete;
ferencd@0:     save_ostream& operator=(const save_ostream&) = delete;
ferencd@0: 
ferencd@0:     explicit save_ostream(std::basic_ios<CharT, Traits>& os)
ferencd@0:         : save_istream<CharT, Traits>(os)
ferencd@0:         {
ferencd@0:         }
ferencd@0: };
ferencd@0: 
ferencd@0: template <class T>
ferencd@0: struct choose_trunc_type
ferencd@0: {
ferencd@0:     static const int digits = std::numeric_limits<T>::digits;
ferencd@0:     using type = typename std::conditional
ferencd@0:                  <
ferencd@0:                      digits < 32,
ferencd@0:                      std::int32_t,
ferencd@0:                      typename std::conditional
ferencd@0:                      <
ferencd@0:                          digits < 64,
ferencd@0:                          std::int64_t,
ferencd@0: #ifdef __SIZEOF_INT128__
ferencd@0:                          __int128
ferencd@0: #else
ferencd@0:                          std::int64_t
ferencd@0: #endif
ferencd@0:                      >::type
ferencd@0:                  >::type;
ferencd@0: };
ferencd@0: 
ferencd@0: template <class T>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: typename std::enable_if
ferencd@0: <
ferencd@0:     !std::chrono::treat_as_floating_point<T>::value,
ferencd@0:     T
ferencd@0: >::type
ferencd@0: trunc(T t) NOEXCEPT
ferencd@0: {
ferencd@0:     return t;
ferencd@0: }
ferencd@0: 
ferencd@0: template <class T>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: typename std::enable_if
ferencd@0: <
ferencd@0:     std::chrono::treat_as_floating_point<T>::value,
ferencd@0:     T
ferencd@0: >::type
ferencd@0: trunc(T t) NOEXCEPT
ferencd@0: {
ferencd@0:     using std::numeric_limits;
ferencd@0:     using I = typename choose_trunc_type<T>::type;
ferencd@0:     CONSTDATA auto digits = numeric_limits<T>::digits;
ferencd@0:     static_assert(digits < numeric_limits<I>::digits, "");
ferencd@0:     CONSTDATA auto max = I{1} << (digits-1);
ferencd@0:     CONSTDATA auto min = -max;
ferencd@0:     const auto negative = t < T{0};
ferencd@0:     if (min <= t && t <= max && t != 0 && t == t)
ferencd@0:     {
ferencd@0:         t = static_cast<T>(static_cast<I>(t));
ferencd@0:         if (t == 0 && negative)
ferencd@0:             t = -t;
ferencd@0:     }
ferencd@0:     return t;
ferencd@0: }
ferencd@0: 
ferencd@0: template <std::intmax_t Xp, std::intmax_t Yp>
ferencd@0: struct static_gcd
ferencd@0: {
ferencd@0:     static const std::intmax_t value = static_gcd<Yp, Xp % Yp>::value;
ferencd@0: };
ferencd@0: 
ferencd@0: template <std::intmax_t Xp>
ferencd@0: struct static_gcd<Xp, 0>
ferencd@0: {
ferencd@0:     static const std::intmax_t value = Xp;
ferencd@0: };
ferencd@0: 
ferencd@0: template <>
ferencd@0: struct static_gcd<0, 0>
ferencd@0: {
ferencd@0:     static const std::intmax_t value = 1;
ferencd@0: };
ferencd@0: 
ferencd@0: template <class R1, class R2>
ferencd@0: struct no_overflow
ferencd@0: {
ferencd@0: private:
ferencd@0:     static const std::intmax_t gcd_n1_n2 = static_gcd<R1::num, R2::num>::value;
ferencd@0:     static const std::intmax_t gcd_d1_d2 = static_gcd<R1::den, R2::den>::value;
ferencd@0:     static const std::intmax_t n1 = R1::num / gcd_n1_n2;
ferencd@0:     static const std::intmax_t d1 = R1::den / gcd_d1_d2;
ferencd@0:     static const std::intmax_t n2 = R2::num / gcd_n1_n2;
ferencd@0:     static const std::intmax_t d2 = R2::den / gcd_d1_d2;
ferencd@0:     static const std::intmax_t max = INTMAX_MAX;
ferencd@0: 
ferencd@0:     template <std::intmax_t Xp, std::intmax_t Yp, bool overflow>
ferencd@0:     struct mul    // overflow == false
ferencd@0:     {
ferencd@0:         static const std::intmax_t value = Xp * Yp;
ferencd@0:     };
ferencd@0: 
ferencd@0:     template <std::intmax_t Xp, std::intmax_t Yp>
ferencd@0:     struct mul<Xp, Yp, true>
ferencd@0:     {
ferencd@0:         static const std::intmax_t value = 1;
ferencd@0:     };
ferencd@0: 
ferencd@0: public:
ferencd@0:     static const bool value = (n1 <= max / d2) && (n2 <= max / d1);
ferencd@0:     typedef std::ratio<mul<n1, d2, !value>::value,
ferencd@0:                        mul<n2, d1, !value>::value> type;
ferencd@0: };
ferencd@0: 
ferencd@0: }  // detail
ferencd@0: 
ferencd@0: // trunc towards zero
ferencd@0: template <class To, class Rep, class Period>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: typename std::enable_if
ferencd@0: <
ferencd@0:     detail::no_overflow<Period, typename To::period>::value,
ferencd@0:     To
ferencd@0: >::type
ferencd@0: trunc(const std::chrono::duration<Rep, Period>& d)
ferencd@0: {
ferencd@0:     return To{detail::trunc(std::chrono::duration_cast<To>(d).count())};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class To, class Rep, class Period>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: typename std::enable_if
ferencd@0: <
ferencd@0:     !detail::no_overflow<Period, typename To::period>::value,
ferencd@0:     To
ferencd@0: >::type
ferencd@0: trunc(const std::chrono::duration<Rep, Period>& d)
ferencd@0: {
ferencd@0:     using std::chrono::duration_cast;
ferencd@0:     using std::chrono::duration;
ferencd@0:     using rep = typename std::common_type<Rep, typename To::rep>::type;
ferencd@0:     return To{detail::trunc(duration_cast<To>(duration_cast<duration<rep>>(d)).count())};
ferencd@0: }
ferencd@0: 
ferencd@0: #ifndef HAS_CHRONO_ROUNDING
ferencd@0: #  if defined(_MSC_FULL_VER) && (_MSC_FULL_VER >= 190023918 || (_MSC_FULL_VER >= 190000000 && defined (__clang__)))
ferencd@0: #    define HAS_CHRONO_ROUNDING 1
ferencd@0: #  elif defined(__cpp_lib_chrono) && __cplusplus > 201402 && __cpp_lib_chrono >= 201510
ferencd@0: #    define HAS_CHRONO_ROUNDING 1
ferencd@0: #  elif defined(_LIBCPP_VERSION) && __cplusplus > 201402 && _LIBCPP_VERSION >= 3800
ferencd@0: #    define HAS_CHRONO_ROUNDING 1
ferencd@0: #  else
ferencd@0: #    define HAS_CHRONO_ROUNDING 0
ferencd@0: #  endif
ferencd@0: #endif  // HAS_CHRONO_ROUNDING
ferencd@0: 
ferencd@0: #if HAS_CHRONO_ROUNDING == 0
ferencd@0: 
ferencd@0: // round down
ferencd@0: template <class To, class Rep, class Period>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: typename std::enable_if
ferencd@0: <
ferencd@0:     detail::no_overflow<Period, typename To::period>::value,
ferencd@0:     To
ferencd@0: >::type
ferencd@0: floor(const std::chrono::duration<Rep, Period>& d)
ferencd@0: {
ferencd@0:     auto t = trunc<To>(d);
ferencd@0:     if (t > d)
ferencd@0:         return t - To{1};
ferencd@0:     return t;
ferencd@0: }
ferencd@0: 
ferencd@0: template <class To, class Rep, class Period>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: typename std::enable_if
ferencd@0: <
ferencd@0:     !detail::no_overflow<Period, typename To::period>::value,
ferencd@0:     To
ferencd@0: >::type
ferencd@0: floor(const std::chrono::duration<Rep, Period>& d)
ferencd@0: {
ferencd@0:     using rep = typename std::common_type<Rep, typename To::rep>::type;
ferencd@0:     return floor<To>(floor<std::chrono::duration<rep>>(d));
ferencd@0: }
ferencd@0: 
ferencd@0: // round to nearest, to even on tie
ferencd@0: template <class To, class Rep, class Period>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: To
ferencd@0: round(const std::chrono::duration<Rep, Period>& d)
ferencd@0: {
ferencd@0:     auto t0 = floor<To>(d);
ferencd@0:     auto t1 = t0 + To{1};
ferencd@0:     if (t1 == To{0} && t0 < To{0})
ferencd@0:         t1 = -t1;
ferencd@0:     auto diff0 = d - t0;
ferencd@0:     auto diff1 = t1 - d;
ferencd@0:     if (diff0 == diff1)
ferencd@0:     {
ferencd@0:         if (t0 - trunc<To>(t0/2)*2 == To{0})
ferencd@0:             return t0;
ferencd@0:         return t1;
ferencd@0:     }
ferencd@0:     if (diff0 < diff1)
ferencd@0:         return t0;
ferencd@0:     return t1;
ferencd@0: }
ferencd@0: 
ferencd@0: // round up
ferencd@0: template <class To, class Rep, class Period>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: To
ferencd@0: ceil(const std::chrono::duration<Rep, Period>& d)
ferencd@0: {
ferencd@0:     auto t = trunc<To>(d);
ferencd@0:     if (t < d)
ferencd@0:         return t + To{1};
ferencd@0:     return t;
ferencd@0: }
ferencd@0: 
ferencd@0: template <class Rep, class Period,
ferencd@0:           class = typename std::enable_if
ferencd@0:           <
ferencd@0:               std::numeric_limits<Rep>::is_signed
ferencd@0:           >::type>
ferencd@0: CONSTCD11
ferencd@0: std::chrono::duration<Rep, Period>
ferencd@0: abs(std::chrono::duration<Rep, Period> d)
ferencd@0: {
ferencd@0:     return d >= d.zero() ? d : -d;
ferencd@0: }
ferencd@0: 
ferencd@0: // round down
ferencd@0: template <class To, class Clock, class FromDuration>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: std::chrono::time_point<Clock, To>
ferencd@0: floor(const std::chrono::time_point<Clock, FromDuration>& tp)
ferencd@0: {
ferencd@0:     using std::chrono::time_point;
ferencd@0:     return time_point<Clock, To>{date::floor<To>(tp.time_since_epoch())};
ferencd@0: }
ferencd@0: 
ferencd@0: // round to nearest, to even on tie
ferencd@0: template <class To, class Clock, class FromDuration>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: std::chrono::time_point<Clock, To>
ferencd@0: round(const std::chrono::time_point<Clock, FromDuration>& tp)
ferencd@0: {
ferencd@0:     using std::chrono::time_point;
ferencd@0:     return time_point<Clock, To>{round<To>(tp.time_since_epoch())};
ferencd@0: }
ferencd@0: 
ferencd@0: // round up
ferencd@0: template <class To, class Clock, class FromDuration>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: std::chrono::time_point<Clock, To>
ferencd@0: ceil(const std::chrono::time_point<Clock, FromDuration>& tp)
ferencd@0: {
ferencd@0:     using std::chrono::time_point;
ferencd@0:     return time_point<Clock, To>{ceil<To>(tp.time_since_epoch())};
ferencd@0: }
ferencd@0: 
ferencd@0: #else  // HAS_CHRONO_ROUNDING == 1
ferencd@0: 
ferencd@0: using std::chrono::floor;
ferencd@0: using std::chrono::ceil;
ferencd@0: using std::chrono::round;
ferencd@0: using std::chrono::abs;
ferencd@0: 
ferencd@0: #endif  // HAS_CHRONO_ROUNDING
ferencd@0: 
ferencd@0: // trunc towards zero
ferencd@0: template <class To, class Clock, class FromDuration>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: std::chrono::time_point<Clock, To>
ferencd@0: trunc(const std::chrono::time_point<Clock, FromDuration>& tp)
ferencd@0: {
ferencd@0:     using std::chrono::time_point;
ferencd@0:     return time_point<Clock, To>{trunc<To>(tp.time_since_epoch())};
ferencd@0: }
ferencd@0: 
ferencd@0: // day
ferencd@0: 
ferencd@0: CONSTCD11 inline day::day(unsigned d) NOEXCEPT : d_(static_cast<unsigned char>(d)) {}
ferencd@0: CONSTCD14 inline day& day::operator++() NOEXCEPT {++d_; return *this;}
ferencd@0: CONSTCD14 inline day day::operator++(int) NOEXCEPT {auto tmp(*this); ++(*this); return tmp;}
ferencd@0: CONSTCD14 inline day& day::operator--() NOEXCEPT {--d_; return *this;}
ferencd@0: CONSTCD14 inline day day::operator--(int) NOEXCEPT {auto tmp(*this); --(*this); return tmp;}
ferencd@0: CONSTCD14 inline day& day::operator+=(const days& d) NOEXCEPT {*this = *this + d; return *this;}
ferencd@0: CONSTCD14 inline day& day::operator-=(const days& d) NOEXCEPT {*this = *this - d; return *this;}
ferencd@0: CONSTCD11 inline day::operator unsigned() const NOEXCEPT {return d_;}
ferencd@0: CONSTCD11 inline bool day::ok() const NOEXCEPT {return 1 <= d_ && d_ <= 31;}
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator==(const day& x, const day& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return static_cast<unsigned>(x) == static_cast<unsigned>(y);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator!=(const day& x, const day& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x == y);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator<(const day& x, const day& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return static_cast<unsigned>(x) < static_cast<unsigned>(y);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator>(const day& x, const day& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return y < x;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator<=(const day& x, const day& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(y < x);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator>=(const day& x, const day& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x < y);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: days
ferencd@0: operator-(const day& x, const day& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return days{static_cast<days::rep>(static_cast<unsigned>(x)
ferencd@0:                                      - static_cast<unsigned>(y))};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: day
ferencd@0: operator+(const day& x, const days& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return day{static_cast<unsigned>(x) + static_cast<unsigned>(y.count())};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: day
ferencd@0: operator+(const days& x, const day& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return y + x;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: day
ferencd@0: operator-(const day& x, const days& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return x + -y;
ferencd@0: }
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const day& d)
ferencd@0: {
ferencd@0:     detail::save_ostream<CharT, Traits> _(os);
ferencd@0:     os.fill('0');
ferencd@0:     os.flags(std::ios::dec | std::ios::right);
ferencd@0:     os.width(2);
ferencd@0:     os << static_cast<unsigned>(d);
ferencd@0:     if (!d.ok())
ferencd@0:         os << " is not a valid day";
ferencd@0:     return os;
ferencd@0: }
ferencd@0: 
ferencd@0: // month
ferencd@0: 
ferencd@0: CONSTCD11 inline month::month(unsigned m) NOEXCEPT : m_(static_cast<decltype(m_)>(m)) {}
ferencd@0: CONSTCD14 inline month& month::operator++() NOEXCEPT {*this += months{1}; return *this;}
ferencd@0: CONSTCD14 inline month month::operator++(int) NOEXCEPT {auto tmp(*this); ++(*this); return tmp;}
ferencd@0: CONSTCD14 inline month& month::operator--() NOEXCEPT {*this -= months{1}; return *this;}
ferencd@0: CONSTCD14 inline month month::operator--(int) NOEXCEPT {auto tmp(*this); --(*this); return tmp;}
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: month&
ferencd@0: month::operator+=(const months& m) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this + m;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: month&
ferencd@0: month::operator-=(const months& m) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this - m;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11 inline month::operator unsigned() const NOEXCEPT {return m_;}
ferencd@0: CONSTCD11 inline bool month::ok() const NOEXCEPT {return 1 <= m_ && m_ <= 12;}
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator==(const month& x, const month& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return static_cast<unsigned>(x) == static_cast<unsigned>(y);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator!=(const month& x, const month& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x == y);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator<(const month& x, const month& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return static_cast<unsigned>(x) < static_cast<unsigned>(y);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator>(const month& x, const month& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return y < x;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator<=(const month& x, const month& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(y < x);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator>=(const month& x, const month& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x < y);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: months
ferencd@0: operator-(const month& x, const month& y) NOEXCEPT
ferencd@0: {
ferencd@0:     auto const d = static_cast<unsigned>(x) - static_cast<unsigned>(y);
ferencd@0:     return months(d <= 11 ? d : d + 12);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: month
ferencd@0: operator+(const month& x, const months& y) NOEXCEPT
ferencd@0: {
ferencd@0:     auto const mu = static_cast<long long>(static_cast<unsigned>(x)) + (y.count() - 1);
ferencd@0:     auto const yr = (mu >= 0 ? mu : mu-11) / 12;
ferencd@0:     return month{static_cast<unsigned>(mu - yr * 12 + 1)};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: month
ferencd@0: operator+(const months& x, const month& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return y + x;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: month
ferencd@0: operator-(const month& x, const months& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return x + -y;
ferencd@0: }
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const month& m)
ferencd@0: {
ferencd@0:     if (m.ok())
ferencd@0:     {
ferencd@0:         CharT fmt[] = {'%', 'b', 0};
ferencd@0:         os << format(os.getloc(), fmt, m);
ferencd@0:     }
ferencd@0:     else
ferencd@0:         os << static_cast<unsigned>(m) << " is not a valid month";
ferencd@0:     return os;
ferencd@0: }
ferencd@0: 
ferencd@0: // year
ferencd@0: 
ferencd@0: CONSTCD11 inline year::year(int y) NOEXCEPT : y_(static_cast<decltype(y_)>(y)) {}
ferencd@0: CONSTCD14 inline year& year::operator++() NOEXCEPT {++y_; return *this;}
ferencd@0: CONSTCD14 inline year year::operator++(int) NOEXCEPT {auto tmp(*this); ++(*this); return tmp;}
ferencd@0: CONSTCD14 inline year& year::operator--() NOEXCEPT {--y_; return *this;}
ferencd@0: CONSTCD14 inline year year::operator--(int) NOEXCEPT {auto tmp(*this); --(*this); return tmp;}
ferencd@0: CONSTCD14 inline year& year::operator+=(const years& y) NOEXCEPT {*this = *this + y; return *this;}
ferencd@0: CONSTCD14 inline year& year::operator-=(const years& y) NOEXCEPT {*this = *this - y; return *this;}
ferencd@0: CONSTCD11 inline year year::operator-() const NOEXCEPT {return year{-y_};}
ferencd@0: CONSTCD11 inline year year::operator+() const NOEXCEPT {return *this;}
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: year::is_leap() const NOEXCEPT
ferencd@0: {
ferencd@0:     return y_ % 4 == 0 && (y_ % 100 != 0 || y_ % 400 == 0);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11 inline year::operator int() const NOEXCEPT {return y_;}
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: year::ok() const NOEXCEPT
ferencd@0: {
ferencd@0:     return y_ != std::numeric_limits<short>::min();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator==(const year& x, const year& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return static_cast<int>(x) == static_cast<int>(y);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator!=(const year& x, const year& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x == y);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator<(const year& x, const year& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return static_cast<int>(x) < static_cast<int>(y);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator>(const year& x, const year& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return y < x;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator<=(const year& x, const year& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(y < x);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator>=(const year& x, const year& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x < y);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: years
ferencd@0: operator-(const year& x, const year& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return years{static_cast<int>(x) - static_cast<int>(y)};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year
ferencd@0: operator+(const year& x, const years& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return year{static_cast<int>(x) + y.count()};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year
ferencd@0: operator+(const years& x, const year& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return y + x;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year
ferencd@0: operator-(const year& x, const years& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return year{static_cast<int>(x) - y.count()};
ferencd@0: }
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const year& y)
ferencd@0: {
ferencd@0:     detail::save_ostream<CharT, Traits> _(os);
ferencd@0:     os.fill('0');
ferencd@0:     os.flags(std::ios::dec | std::ios::internal);
ferencd@0:     os.width(4 + (y < year{0}));
ferencd@0: 	os.imbue(std::locale::classic());
ferencd@0:     os << static_cast<int>(y);
ferencd@0:     if (!y.ok())
ferencd@0:         os << " is not a valid year";
ferencd@0:     return os;
ferencd@0: }
ferencd@0: 
ferencd@0: // weekday
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: unsigned char
ferencd@0: weekday::weekday_from_days(int z) NOEXCEPT
ferencd@0: {
ferencd@0:     auto u = static_cast<unsigned>(z);
ferencd@0:     return static_cast<unsigned char>(z >= -4 ? (u+4) % 7 : u % 7);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: weekday::weekday(unsigned wd) NOEXCEPT
ferencd@0:     : wd_(static_cast<decltype(wd_)>(wd != 7 ? wd : 0))
ferencd@0:     {}
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: weekday::weekday(const sys_days& dp) NOEXCEPT
ferencd@0:     : wd_(weekday_from_days(dp.time_since_epoch().count()))
ferencd@0:     {}
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: weekday::weekday(const local_days& dp) NOEXCEPT
ferencd@0:     : wd_(weekday_from_days(dp.time_since_epoch().count()))
ferencd@0:     {}
ferencd@0: 
ferencd@0: CONSTCD14 inline weekday& weekday::operator++() NOEXCEPT {*this += days{1}; return *this;}
ferencd@0: CONSTCD14 inline weekday weekday::operator++(int) NOEXCEPT {auto tmp(*this); ++(*this); return tmp;}
ferencd@0: CONSTCD14 inline weekday& weekday::operator--() NOEXCEPT {*this -= days{1}; return *this;}
ferencd@0: CONSTCD14 inline weekday weekday::operator--(int) NOEXCEPT {auto tmp(*this); --(*this); return tmp;}
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: weekday&
ferencd@0: weekday::operator+=(const days& d) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this + d;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: weekday&
ferencd@0: weekday::operator-=(const days& d) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this - d;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11 inline bool weekday::ok() const NOEXCEPT {return wd_ <= 6;}
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: unsigned weekday::c_encoding() const NOEXCEPT
ferencd@0: {
ferencd@0:     return unsigned{wd_};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: unsigned weekday::iso_encoding() const NOEXCEPT
ferencd@0: {
ferencd@0:     return unsigned{((wd_ == 0u) ? 7u : wd_)};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator==(const weekday& x, const weekday& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return x.wd_ == y.wd_;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator!=(const weekday& x, const weekday& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x == y);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: days
ferencd@0: operator-(const weekday& x, const weekday& y) NOEXCEPT
ferencd@0: {
ferencd@0:     auto const wdu = x.wd_ - y.wd_;
ferencd@0:     auto const wk = (wdu >= 0 ? wdu : wdu-6) / 7;
ferencd@0:     return days{wdu - wk * 7};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: weekday
ferencd@0: operator+(const weekday& x, const days& y) NOEXCEPT
ferencd@0: {
ferencd@0:     auto const wdu = static_cast<long long>(static_cast<unsigned>(x.wd_)) + y.count();
ferencd@0:     auto const wk = (wdu >= 0 ? wdu : wdu-6) / 7;
ferencd@0:     return weekday{static_cast<unsigned>(wdu - wk * 7)};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: weekday
ferencd@0: operator+(const days& x, const weekday& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return y + x;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: weekday
ferencd@0: operator-(const weekday& x, const days& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return x + -y;
ferencd@0: }
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const weekday& wd)
ferencd@0: {
ferencd@0:     if (wd.ok())
ferencd@0:     {
ferencd@0:         CharT fmt[] = {'%', 'a', 0};
ferencd@0:         os << format(fmt, wd);
ferencd@0:     }
ferencd@0:     else
ferencd@0:         os << static_cast<unsigned>(wd.wd_) << " is not a valid weekday";
ferencd@0:     return os;
ferencd@0: }
ferencd@0: 
ferencd@0: #if !defined(_MSC_VER) || (_MSC_VER >= 1900)
ferencd@0: inline namespace literals
ferencd@0: {
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: date::day
ferencd@0: operator "" _d(unsigned long long d) NOEXCEPT
ferencd@0: {
ferencd@0:     return date::day{static_cast<unsigned>(d)};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: date::year
ferencd@0: operator "" _y(unsigned long long y) NOEXCEPT
ferencd@0: {
ferencd@0:     return date::year(static_cast<int>(y));
ferencd@0: }
ferencd@0: #endif  // !defined(_MSC_VER) || (_MSC_VER >= 1900)
ferencd@0: 
ferencd@0: CONSTDATA date::last_spec last{};
ferencd@0: 
ferencd@0: CONSTDATA date::month jan{1};
ferencd@0: CONSTDATA date::month feb{2};
ferencd@0: CONSTDATA date::month mar{3};
ferencd@0: CONSTDATA date::month apr{4};
ferencd@0: CONSTDATA date::month may{5};
ferencd@0: CONSTDATA date::month jun{6};
ferencd@0: CONSTDATA date::month jul{7};
ferencd@0: CONSTDATA date::month aug{8};
ferencd@0: CONSTDATA date::month sep{9};
ferencd@0: CONSTDATA date::month oct{10};
ferencd@0: CONSTDATA date::month nov{11};
ferencd@0: CONSTDATA date::month dec{12};
ferencd@0: 
ferencd@0: CONSTDATA date::weekday sun{0u};
ferencd@0: CONSTDATA date::weekday mon{1u};
ferencd@0: CONSTDATA date::weekday tue{2u};
ferencd@0: CONSTDATA date::weekday wed{3u};
ferencd@0: CONSTDATA date::weekday thu{4u};
ferencd@0: CONSTDATA date::weekday fri{5u};
ferencd@0: CONSTDATA date::weekday sat{6u};
ferencd@0: 
ferencd@0: #if !defined(_MSC_VER) || (_MSC_VER >= 1900)
ferencd@0: }  // inline namespace literals
ferencd@0: #endif
ferencd@0: 
ferencd@0: CONSTDATA date::month January{1};
ferencd@0: CONSTDATA date::month February{2};
ferencd@0: CONSTDATA date::month March{3};
ferencd@0: CONSTDATA date::month April{4};
ferencd@0: CONSTDATA date::month May{5};
ferencd@0: CONSTDATA date::month June{6};
ferencd@0: CONSTDATA date::month July{7};
ferencd@0: CONSTDATA date::month August{8};
ferencd@0: CONSTDATA date::month September{9};
ferencd@0: CONSTDATA date::month October{10};
ferencd@0: CONSTDATA date::month November{11};
ferencd@0: CONSTDATA date::month December{12};
ferencd@0: 
ferencd@0: CONSTDATA date::weekday Monday{1};
ferencd@0: CONSTDATA date::weekday Tuesday{2};
ferencd@0: CONSTDATA date::weekday Wednesday{3};
ferencd@0: CONSTDATA date::weekday Thursday{4};
ferencd@0: CONSTDATA date::weekday Friday{5};
ferencd@0: CONSTDATA date::weekday Saturday{6};
ferencd@0: CONSTDATA date::weekday Sunday{7};
ferencd@0: 
ferencd@0: // weekday_indexed
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: weekday
ferencd@0: weekday_indexed::weekday() const NOEXCEPT
ferencd@0: {
ferencd@0:     return date::weekday{static_cast<unsigned>(wd_)};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11 inline unsigned weekday_indexed::index() const NOEXCEPT {return index_;}
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: weekday_indexed::ok() const NOEXCEPT
ferencd@0: {
ferencd@0:     return weekday().ok() && 1 <= index_ && index_ <= 5;
ferencd@0: }
ferencd@0: 
ferencd@0: #ifdef __GNUC__
ferencd@0: #  pragma GCC diagnostic push
ferencd@0: #  pragma GCC diagnostic ignored "-Wconversion"
ferencd@0: #endif  // __GNUC__
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: weekday_indexed::weekday_indexed(const date::weekday& wd, unsigned index) NOEXCEPT
ferencd@0:     : wd_(static_cast<decltype(wd_)>(static_cast<unsigned>(wd.wd_)))
ferencd@0:     , index_(static_cast<decltype(index_)>(index))
ferencd@0:     {}
ferencd@0: 
ferencd@0: #ifdef __GNUC__
ferencd@0: #  pragma GCC diagnostic pop
ferencd@0: #endif  // __GNUC__
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const weekday_indexed& wdi)
ferencd@0: {
ferencd@0:     os << wdi.weekday() << '[' << wdi.index();
ferencd@0:     if (!(1 <= wdi.index() && wdi.index() <= 5))
ferencd@0:         os << " is not a valid index";
ferencd@0:     os << ']';
ferencd@0:     return os;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: weekday_indexed
ferencd@0: weekday::operator[](unsigned index) const NOEXCEPT
ferencd@0: {
ferencd@0:     return {*this, index};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator==(const weekday_indexed& x, const weekday_indexed& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return x.weekday() == y.weekday() && x.index() == y.index();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator!=(const weekday_indexed& x, const weekday_indexed& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x == y);
ferencd@0: }
ferencd@0: 
ferencd@0: // weekday_last
ferencd@0: 
ferencd@0: CONSTCD11 inline date::weekday weekday_last::weekday() const NOEXCEPT {return wd_;}
ferencd@0: CONSTCD11 inline bool weekday_last::ok() const NOEXCEPT {return wd_.ok();}
ferencd@0: CONSTCD11 inline weekday_last::weekday_last(const date::weekday& wd) NOEXCEPT : wd_(wd) {}
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator==(const weekday_last& x, const weekday_last& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return x.weekday() == y.weekday();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator!=(const weekday_last& x, const weekday_last& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x == y);
ferencd@0: }
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const weekday_last& wdl)
ferencd@0: {
ferencd@0:     return os << wdl.weekday() << "[last]";
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: weekday_last
ferencd@0: weekday::operator[](last_spec) const NOEXCEPT
ferencd@0: {
ferencd@0:     return weekday_last{*this};
ferencd@0: }
ferencd@0: 
ferencd@0: // year_month
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month::year_month(const date::year& y, const date::month& m) NOEXCEPT
ferencd@0:     : y_(y)
ferencd@0:     , m_(m)
ferencd@0:     {}
ferencd@0: 
ferencd@0: CONSTCD11 inline year year_month::year() const NOEXCEPT {return y_;}
ferencd@0: CONSTCD11 inline month year_month::month() const NOEXCEPT {return m_;}
ferencd@0: CONSTCD11 inline bool year_month::ok() const NOEXCEPT {return y_.ok() && m_.ok();}
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month&
ferencd@0: year_month::operator+=(const months& dm) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this + dm;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month&
ferencd@0: year_month::operator-=(const months& dm) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this - dm;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month&
ferencd@0: year_month::operator+=(const years& dy) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this + dy;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month&
ferencd@0: year_month::operator-=(const years& dy) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this - dy;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator==(const year_month& x, const year_month& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return x.year() == y.year() && x.month() == y.month();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator!=(const year_month& x, const year_month& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x == y);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator<(const year_month& x, const year_month& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return x.year() < y.year() ? true
ferencd@0:         : (x.year() > y.year() ? false
ferencd@0:         : (x.month() < y.month()));
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator>(const year_month& x, const year_month& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return y < x;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator<=(const year_month& x, const year_month& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(y < x);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator>=(const year_month& x, const year_month& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x < y);
ferencd@0: }
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month
ferencd@0: operator+(const year_month& ym, const months& dm) NOEXCEPT
ferencd@0: {
ferencd@0:     auto dmi = static_cast<int>(static_cast<unsigned>(ym.month())) - 1 + dm.count();
ferencd@0:     auto dy = (dmi >= 0 ? dmi : dmi-11) / 12;
ferencd@0:     dmi = dmi - dy * 12 + 1;
ferencd@0:     return (ym.year() + years(dy)) / month(static_cast<unsigned>(dmi));
ferencd@0: }
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month
ferencd@0: operator+(const months& dm, const year_month& ym) NOEXCEPT
ferencd@0: {
ferencd@0:     return ym + dm;
ferencd@0: }
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month
ferencd@0: operator-(const year_month& ym, const months& dm) NOEXCEPT
ferencd@0: {
ferencd@0:     return ym + -dm;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: months
ferencd@0: operator-(const year_month& x, const year_month& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return (x.year() - y.year()) +
ferencd@0:             months(static_cast<unsigned>(x.month()) - static_cast<unsigned>(y.month()));
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month
ferencd@0: operator+(const year_month& ym, const years& dy) NOEXCEPT
ferencd@0: {
ferencd@0:     return (ym.year() + dy) / ym.month();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month
ferencd@0: operator+(const years& dy, const year_month& ym) NOEXCEPT
ferencd@0: {
ferencd@0:     return ym + dy;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month
ferencd@0: operator-(const year_month& ym, const years& dy) NOEXCEPT
ferencd@0: {
ferencd@0:     return ym + -dy;
ferencd@0: }
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const year_month& ym)
ferencd@0: {
ferencd@0:     return os << ym.year() << '/' << ym.month();
ferencd@0: }
ferencd@0: 
ferencd@0: // month_day
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: month_day::month_day(const date::month& m, const date::day& d) NOEXCEPT
ferencd@0:     : m_(m)
ferencd@0:     , d_(d)
ferencd@0:     {}
ferencd@0: 
ferencd@0: CONSTCD11 inline date::month month_day::month() const NOEXCEPT {return m_;}
ferencd@0: CONSTCD11 inline date::day month_day::day() const NOEXCEPT {return d_;}
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: bool
ferencd@0: month_day::ok() const NOEXCEPT
ferencd@0: {
ferencd@0:     CONSTDATA date::day d[] =
ferencd@0:     {
ferencd@0:         date::day(31), date::day(29), date::day(31),
ferencd@0:         date::day(30), date::day(31), date::day(30),
ferencd@0:         date::day(31), date::day(31), date::day(30),
ferencd@0:         date::day(31), date::day(30), date::day(31)
ferencd@0:     };
ferencd@0:     return m_.ok() && date::day{1} <= d_ && d_ <= d[static_cast<unsigned>(m_)-1];
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator==(const month_day& x, const month_day& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return x.month() == y.month() && x.day() == y.day();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator!=(const month_day& x, const month_day& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x == y);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator<(const month_day& x, const month_day& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return x.month() < y.month() ? true
ferencd@0:         : (x.month() > y.month() ? false
ferencd@0:         : (x.day() < y.day()));
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator>(const month_day& x, const month_day& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return y < x;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator<=(const month_day& x, const month_day& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(y < x);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator>=(const month_day& x, const month_day& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x < y);
ferencd@0: }
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const month_day& md)
ferencd@0: {
ferencd@0:     return os << md.month() << '/' << md.day();
ferencd@0: }
ferencd@0: 
ferencd@0: // month_day_last
ferencd@0: 
ferencd@0: CONSTCD11 inline month month_day_last::month() const NOEXCEPT {return m_;}
ferencd@0: CONSTCD11 inline bool month_day_last::ok() const NOEXCEPT {return m_.ok();}
ferencd@0: CONSTCD11 inline month_day_last::month_day_last(const date::month& m) NOEXCEPT : m_(m) {}
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator==(const month_day_last& x, const month_day_last& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return x.month() == y.month();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator!=(const month_day_last& x, const month_day_last& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x == y);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator<(const month_day_last& x, const month_day_last& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return x.month() < y.month();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator>(const month_day_last& x, const month_day_last& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return y < x;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator<=(const month_day_last& x, const month_day_last& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(y < x);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator>=(const month_day_last& x, const month_day_last& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x < y);
ferencd@0: }
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const month_day_last& mdl)
ferencd@0: {
ferencd@0:     return os << mdl.month() << "/last";
ferencd@0: }
ferencd@0: 
ferencd@0: // month_weekday
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: month_weekday::month_weekday(const date::month& m,
ferencd@0:                              const date::weekday_indexed& wdi) NOEXCEPT
ferencd@0:     : m_(m)
ferencd@0:     , wdi_(wdi)
ferencd@0:     {}
ferencd@0: 
ferencd@0: CONSTCD11 inline month month_weekday::month() const NOEXCEPT {return m_;}
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: weekday_indexed
ferencd@0: month_weekday::weekday_indexed() const NOEXCEPT
ferencd@0: {
ferencd@0:     return wdi_;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: month_weekday::ok() const NOEXCEPT
ferencd@0: {
ferencd@0:     return m_.ok() && wdi_.ok();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator==(const month_weekday& x, const month_weekday& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return x.month() == y.month() && x.weekday_indexed() == y.weekday_indexed();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator!=(const month_weekday& x, const month_weekday& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x == y);
ferencd@0: }
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const month_weekday& mwd)
ferencd@0: {
ferencd@0:     return os << mwd.month() << '/' << mwd.weekday_indexed();
ferencd@0: }
ferencd@0: 
ferencd@0: // month_weekday_last
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: month_weekday_last::month_weekday_last(const date::month& m,
ferencd@0:                                        const date::weekday_last& wdl) NOEXCEPT
ferencd@0:     : m_(m)
ferencd@0:     , wdl_(wdl)
ferencd@0:     {}
ferencd@0: 
ferencd@0: CONSTCD11 inline month month_weekday_last::month() const NOEXCEPT {return m_;}
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: weekday_last
ferencd@0: month_weekday_last::weekday_last() const NOEXCEPT
ferencd@0: {
ferencd@0:     return wdl_;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: month_weekday_last::ok() const NOEXCEPT
ferencd@0: {
ferencd@0:     return m_.ok() && wdl_.ok();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator==(const month_weekday_last& x, const month_weekday_last& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return x.month() == y.month() && x.weekday_last() == y.weekday_last();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator!=(const month_weekday_last& x, const month_weekday_last& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x == y);
ferencd@0: }
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const month_weekday_last& mwdl)
ferencd@0: {
ferencd@0:     return os << mwdl.month() << '/' << mwdl.weekday_last();
ferencd@0: }
ferencd@0: 
ferencd@0: // year_month_day_last
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_day_last::year_month_day_last(const date::year& y,
ferencd@0:                                          const date::month_day_last& mdl) NOEXCEPT
ferencd@0:     : y_(y)
ferencd@0:     , mdl_(mdl)
ferencd@0:     {}
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day_last&
ferencd@0: year_month_day_last::operator+=(const months& m) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this + m;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day_last&
ferencd@0: year_month_day_last::operator-=(const months& m) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this - m;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day_last&
ferencd@0: year_month_day_last::operator+=(const years& y) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this + y;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day_last&
ferencd@0: year_month_day_last::operator-=(const years& y) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this - y;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11 inline year year_month_day_last::year() const NOEXCEPT {return y_;}
ferencd@0: CONSTCD11 inline month year_month_day_last::month() const NOEXCEPT {return mdl_.month();}
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: month_day_last
ferencd@0: year_month_day_last::month_day_last() const NOEXCEPT
ferencd@0: {
ferencd@0:     return mdl_;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: day
ferencd@0: year_month_day_last::day() const NOEXCEPT
ferencd@0: {
ferencd@0:     CONSTDATA date::day d[] =
ferencd@0:     {
ferencd@0:         date::day(31), date::day(28), date::day(31),
ferencd@0:         date::day(30), date::day(31), date::day(30),
ferencd@0:         date::day(31), date::day(31), date::day(30),
ferencd@0:         date::day(31), date::day(30), date::day(31)
ferencd@0:     };
ferencd@0:     return (month() != February || !y_.is_leap()) && mdl_.ok() ?
ferencd@0:         d[static_cast<unsigned>(month()) - 1] : date::day{29};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day_last::operator sys_days() const NOEXCEPT
ferencd@0: {
ferencd@0:     return sys_days(year()/month()/day());
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day_last::operator local_days() const NOEXCEPT
ferencd@0: {
ferencd@0:     return local_days(year()/month()/day());
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: year_month_day_last::ok() const NOEXCEPT
ferencd@0: {
ferencd@0:     return y_.ok() && mdl_.ok();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator==(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return x.year() == y.year() && x.month_day_last() == y.month_day_last();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator!=(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x == y);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator<(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return x.year() < y.year() ? true
ferencd@0:         : (x.year() > y.year() ? false
ferencd@0:         : (x.month_day_last() < y.month_day_last()));
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator>(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return y < x;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator<=(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(y < x);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator>=(const year_month_day_last& x, const year_month_day_last& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x < y);
ferencd@0: }
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const year_month_day_last& ymdl)
ferencd@0: {
ferencd@0:     return os << ymdl.year() << '/' << ymdl.month_day_last();
ferencd@0: }
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day_last
ferencd@0: operator+(const year_month_day_last& ymdl, const months& dm) NOEXCEPT
ferencd@0: {
ferencd@0:     return (ymdl.year() / ymdl.month() + dm) / last;
ferencd@0: }
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day_last
ferencd@0: operator+(const months& dm, const year_month_day_last& ymdl) NOEXCEPT
ferencd@0: {
ferencd@0:     return ymdl + dm;
ferencd@0: }
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day_last
ferencd@0: operator-(const year_month_day_last& ymdl, const months& dm) NOEXCEPT
ferencd@0: {
ferencd@0:     return ymdl + (-dm);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_day_last
ferencd@0: operator+(const year_month_day_last& ymdl, const years& dy) NOEXCEPT
ferencd@0: {
ferencd@0:     return {ymdl.year()+dy, ymdl.month_day_last()};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_day_last
ferencd@0: operator+(const years& dy, const year_month_day_last& ymdl) NOEXCEPT
ferencd@0: {
ferencd@0:     return ymdl + dy;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_day_last
ferencd@0: operator-(const year_month_day_last& ymdl, const years& dy) NOEXCEPT
ferencd@0: {
ferencd@0:     return ymdl + (-dy);
ferencd@0: }
ferencd@0: 
ferencd@0: // year_month_day
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_day::year_month_day(const date::year& y, const date::month& m,
ferencd@0:                                const date::day& d) NOEXCEPT
ferencd@0:     : y_(y)
ferencd@0:     , m_(m)
ferencd@0:     , d_(d)
ferencd@0:     {}
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day::year_month_day(const year_month_day_last& ymdl) NOEXCEPT
ferencd@0:     : y_(ymdl.year())
ferencd@0:     , m_(ymdl.month())
ferencd@0:     , d_(ymdl.day())
ferencd@0:     {}
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day::year_month_day(sys_days dp) NOEXCEPT
ferencd@0:     : year_month_day(from_days(dp.time_since_epoch()))
ferencd@0:     {}
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day::year_month_day(local_days dp) NOEXCEPT
ferencd@0:     : year_month_day(from_days(dp.time_since_epoch()))
ferencd@0:     {}
ferencd@0: 
ferencd@0: CONSTCD11 inline year year_month_day::year() const NOEXCEPT {return y_;}
ferencd@0: CONSTCD11 inline month year_month_day::month() const NOEXCEPT {return m_;}
ferencd@0: CONSTCD11 inline day year_month_day::day() const NOEXCEPT {return d_;}
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day&
ferencd@0: year_month_day::operator+=(const months& m) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this + m;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day&
ferencd@0: year_month_day::operator-=(const months& m) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this - m;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day&
ferencd@0: year_month_day::operator+=(const years& y) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this + y;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day&
ferencd@0: year_month_day::operator-=(const years& y) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this - y;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: days
ferencd@0: year_month_day::to_days() const NOEXCEPT
ferencd@0: {
ferencd@0:     static_assert(std::numeric_limits<unsigned>::digits >= 18,
ferencd@0:              "This algorithm has not been ported to a 16 bit unsigned integer");
ferencd@0:     static_assert(std::numeric_limits<int>::digits >= 20,
ferencd@0:              "This algorithm has not been ported to a 16 bit signed integer");
ferencd@0:     auto const y = static_cast<int>(y_) - (m_ <= February);
ferencd@0:     auto const m = static_cast<unsigned>(m_);
ferencd@0:     auto const d = static_cast<unsigned>(d_);
ferencd@0:     auto const era = (y >= 0 ? y : y-399) / 400;
ferencd@0:     auto const yoe = static_cast<unsigned>(y - era * 400);       // [0, 399]
ferencd@0:     auto const doy = (153*(m > 2 ? m-3 : m+9) + 2)/5 + d-1;      // [0, 365]
ferencd@0:     auto const doe = yoe * 365 + yoe/4 - yoe/100 + doy;          // [0, 146096]
ferencd@0:     return days{era * 146097 + static_cast<int>(doe) - 719468};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day::operator sys_days() const NOEXCEPT
ferencd@0: {
ferencd@0:     return sys_days{to_days()};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day::operator local_days() const NOEXCEPT
ferencd@0: {
ferencd@0:     return local_days{to_days()};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: bool
ferencd@0: year_month_day::ok() const NOEXCEPT
ferencd@0: {
ferencd@0:     if (!(y_.ok() && m_.ok()))
ferencd@0:         return false;
ferencd@0:     return date::day{1} <= d_ && d_ <= (y_ / m_ / last).day();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator==(const year_month_day& x, const year_month_day& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return x.year() == y.year() && x.month() == y.month() && x.day() == y.day();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator!=(const year_month_day& x, const year_month_day& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x == y);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator<(const year_month_day& x, const year_month_day& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return x.year() < y.year() ? true
ferencd@0:         : (x.year() > y.year() ? false
ferencd@0:         : (x.month() < y.month() ? true
ferencd@0:         : (x.month() > y.month() ? false
ferencd@0:         : (x.day() < y.day()))));
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator>(const year_month_day& x, const year_month_day& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return y < x;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator<=(const year_month_day& x, const year_month_day& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(y < x);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator>=(const year_month_day& x, const year_month_day& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x < y);
ferencd@0: }
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const year_month_day& ymd)
ferencd@0: {
ferencd@0:     detail::save_ostream<CharT, Traits> _(os);
ferencd@0:     os.fill('0');
ferencd@0:     os.flags(std::ios::dec | std::ios::right);
ferencd@0:     os << ymd.year() << '-';
ferencd@0:     os.width(2);
ferencd@0:     os << static_cast<unsigned>(ymd.month()) << '-';
ferencd@0:     os << ymd.day();
ferencd@0:     if (!ymd.ok())
ferencd@0:         os << " is not a valid date";
ferencd@0:     return os;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day
ferencd@0: year_month_day::from_days(days dp) NOEXCEPT
ferencd@0: {
ferencd@0:     static_assert(std::numeric_limits<unsigned>::digits >= 18,
ferencd@0:              "This algorithm has not been ported to a 16 bit unsigned integer");
ferencd@0:     static_assert(std::numeric_limits<int>::digits >= 20,
ferencd@0:              "This algorithm has not been ported to a 16 bit signed integer");
ferencd@0:     auto const z = dp.count() + 719468;
ferencd@0:     auto const era = (z >= 0 ? z : z - 146096) / 146097;
ferencd@0:     auto const doe = static_cast<unsigned>(z - era * 146097);          // [0, 146096]
ferencd@0:     auto const yoe = (doe - doe/1460 + doe/36524 - doe/146096) / 365;  // [0, 399]
ferencd@0:     auto const y = static_cast<days::rep>(yoe) + era * 400;
ferencd@0:     auto const doy = doe - (365*yoe + yoe/4 - yoe/100);                // [0, 365]
ferencd@0:     auto const mp = (5*doy + 2)/153;                                   // [0, 11]
ferencd@0:     auto const d = doy - (153*mp+2)/5 + 1;                             // [1, 31]
ferencd@0:     auto const m = mp < 10 ? mp+3 : mp-9;                              // [1, 12]
ferencd@0:     return year_month_day{date::year{y + (m <= 2)}, date::month(m), date::day(d)};
ferencd@0: }
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day
ferencd@0: operator+(const year_month_day& ymd, const months& dm) NOEXCEPT
ferencd@0: {
ferencd@0:     return (ymd.year() / ymd.month() + dm) / ymd.day();
ferencd@0: }
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day
ferencd@0: operator+(const months& dm, const year_month_day& ymd) NOEXCEPT
ferencd@0: {
ferencd@0:     return ymd + dm;
ferencd@0: }
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_day
ferencd@0: operator-(const year_month_day& ymd, const months& dm) NOEXCEPT
ferencd@0: {
ferencd@0:     return ymd + (-dm);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_day
ferencd@0: operator+(const year_month_day& ymd, const years& dy) NOEXCEPT
ferencd@0: {
ferencd@0:     return (ymd.year() + dy) / ymd.month() / ymd.day();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_day
ferencd@0: operator+(const years& dy, const year_month_day& ymd) NOEXCEPT
ferencd@0: {
ferencd@0:     return ymd + dy;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_day
ferencd@0: operator-(const year_month_day& ymd, const years& dy) NOEXCEPT
ferencd@0: {
ferencd@0:     return ymd + (-dy);
ferencd@0: }
ferencd@0: 
ferencd@0: // year_month_weekday
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_weekday::year_month_weekday(const date::year& y, const date::month& m,
ferencd@0:                                        const date::weekday_indexed& wdi)
ferencd@0:         NOEXCEPT
ferencd@0:     : y_(y)
ferencd@0:     , m_(m)
ferencd@0:     , wdi_(wdi)
ferencd@0:     {}
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_weekday::year_month_weekday(const sys_days& dp) NOEXCEPT
ferencd@0:     : year_month_weekday(from_days(dp.time_since_epoch()))
ferencd@0:     {}
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_weekday::year_month_weekday(const local_days& dp) NOEXCEPT
ferencd@0:     : year_month_weekday(from_days(dp.time_since_epoch()))
ferencd@0:     {}
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_weekday&
ferencd@0: year_month_weekday::operator+=(const months& m) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this + m;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_weekday&
ferencd@0: year_month_weekday::operator-=(const months& m) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this - m;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_weekday&
ferencd@0: year_month_weekday::operator+=(const years& y) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this + y;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_weekday&
ferencd@0: year_month_weekday::operator-=(const years& y) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this - y;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11 inline year year_month_weekday::year() const NOEXCEPT {return y_;}
ferencd@0: CONSTCD11 inline month year_month_weekday::month() const NOEXCEPT {return m_;}
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: weekday
ferencd@0: year_month_weekday::weekday() const NOEXCEPT
ferencd@0: {
ferencd@0:     return wdi_.weekday();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: unsigned
ferencd@0: year_month_weekday::index() const NOEXCEPT
ferencd@0: {
ferencd@0:     return wdi_.index();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: weekday_indexed
ferencd@0: year_month_weekday::weekday_indexed() const NOEXCEPT
ferencd@0: {
ferencd@0:     return wdi_;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_weekday::operator sys_days() const NOEXCEPT
ferencd@0: {
ferencd@0:     return sys_days{to_days()};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_weekday::operator local_days() const NOEXCEPT
ferencd@0: {
ferencd@0:     return local_days{to_days()};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: bool
ferencd@0: year_month_weekday::ok() const NOEXCEPT
ferencd@0: {
ferencd@0:     if (!y_.ok() || !m_.ok() || !wdi_.weekday().ok() || wdi_.index() < 1)
ferencd@0:         return false;
ferencd@0:     if (wdi_.index() <= 4)
ferencd@0:         return true;
ferencd@0:     auto d2 = wdi_.weekday() - date::weekday(static_cast<sys_days>(y_/m_/1)) +
ferencd@0:                   days((wdi_.index()-1)*7 + 1);
ferencd@0:     return static_cast<unsigned>(d2.count()) <= static_cast<unsigned>((y_/m_/last).day());
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_weekday
ferencd@0: year_month_weekday::from_days(days d) NOEXCEPT
ferencd@0: {
ferencd@0:     sys_days dp{d};
ferencd@0:     auto const wd = date::weekday(dp);
ferencd@0:     auto const ymd = year_month_day(dp);
ferencd@0:     return {ymd.year(), ymd.month(), wd[(static_cast<unsigned>(ymd.day())-1)/7+1]};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: days
ferencd@0: year_month_weekday::to_days() const NOEXCEPT
ferencd@0: {
ferencd@0:     auto d = sys_days(y_/m_/1);
ferencd@0:     return (d + (wdi_.weekday() - date::weekday(d) + days{(wdi_.index()-1)*7})
ferencd@0:            ).time_since_epoch();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator==(const year_month_weekday& x, const year_month_weekday& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return x.year() == y.year() && x.month() == y.month() &&
ferencd@0:            x.weekday_indexed() == y.weekday_indexed();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator!=(const year_month_weekday& x, const year_month_weekday& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x == y);
ferencd@0: }
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const year_month_weekday& ymwdi)
ferencd@0: {
ferencd@0:     return os << ymwdi.year() << '/' << ymwdi.month()
ferencd@0:               << '/' << ymwdi.weekday_indexed();
ferencd@0: }
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_weekday
ferencd@0: operator+(const year_month_weekday& ymwd, const months& dm) NOEXCEPT
ferencd@0: {
ferencd@0:     return (ymwd.year() / ymwd.month() + dm) / ymwd.weekday_indexed();
ferencd@0: }
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_weekday
ferencd@0: operator+(const months& dm, const year_month_weekday& ymwd) NOEXCEPT
ferencd@0: {
ferencd@0:     return ymwd + dm;
ferencd@0: }
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_weekday
ferencd@0: operator-(const year_month_weekday& ymwd, const months& dm) NOEXCEPT
ferencd@0: {
ferencd@0:     return ymwd + (-dm);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_weekday
ferencd@0: operator+(const year_month_weekday& ymwd, const years& dy) NOEXCEPT
ferencd@0: {
ferencd@0:     return {ymwd.year()+dy, ymwd.month(), ymwd.weekday_indexed()};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_weekday
ferencd@0: operator+(const years& dy, const year_month_weekday& ymwd) NOEXCEPT
ferencd@0: {
ferencd@0:     return ymwd + dy;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_weekday
ferencd@0: operator-(const year_month_weekday& ymwd, const years& dy) NOEXCEPT
ferencd@0: {
ferencd@0:     return ymwd + (-dy);
ferencd@0: }
ferencd@0: 
ferencd@0: // year_month_weekday_last
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_weekday_last::year_month_weekday_last(const date::year& y,
ferencd@0:                                                  const date::month& m,
ferencd@0:                                                  const date::weekday_last& wdl) NOEXCEPT
ferencd@0:     : y_(y)
ferencd@0:     , m_(m)
ferencd@0:     , wdl_(wdl)
ferencd@0:     {}
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_weekday_last&
ferencd@0: year_month_weekday_last::operator+=(const months& m) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this + m;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_weekday_last&
ferencd@0: year_month_weekday_last::operator-=(const months& m) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this - m;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_weekday_last&
ferencd@0: year_month_weekday_last::operator+=(const years& y) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this + y;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_weekday_last&
ferencd@0: year_month_weekday_last::operator-=(const years& y) NOEXCEPT
ferencd@0: {
ferencd@0:     *this = *this - y;
ferencd@0:     return *this;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11 inline year year_month_weekday_last::year() const NOEXCEPT {return y_;}
ferencd@0: CONSTCD11 inline month year_month_weekday_last::month() const NOEXCEPT {return m_;}
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: weekday
ferencd@0: year_month_weekday_last::weekday() const NOEXCEPT
ferencd@0: {
ferencd@0:     return wdl_.weekday();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: weekday_last
ferencd@0: year_month_weekday_last::weekday_last() const NOEXCEPT
ferencd@0: {
ferencd@0:     return wdl_;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_weekday_last::operator sys_days() const NOEXCEPT
ferencd@0: {
ferencd@0:     return sys_days{to_days()};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_weekday_last::operator local_days() const NOEXCEPT
ferencd@0: {
ferencd@0:     return local_days{to_days()};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: year_month_weekday_last::ok() const NOEXCEPT
ferencd@0: {
ferencd@0:     return y_.ok() && m_.ok() && wdl_.ok();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: days
ferencd@0: year_month_weekday_last::to_days() const NOEXCEPT
ferencd@0: {
ferencd@0:     auto const d = sys_days(y_/m_/last);
ferencd@0:     return (d - (date::weekday{d} - wdl_.weekday())).time_since_epoch();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator==(const year_month_weekday_last& x, const year_month_weekday_last& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return x.year() == y.year() && x.month() == y.month() &&
ferencd@0:            x.weekday_last() == y.weekday_last();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: bool
ferencd@0: operator!=(const year_month_weekday_last& x, const year_month_weekday_last& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return !(x == y);
ferencd@0: }
ferencd@0: 
ferencd@0: template<class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const year_month_weekday_last& ymwdl)
ferencd@0: {
ferencd@0:     return os << ymwdl.year() << '/' << ymwdl.month() << '/' << ymwdl.weekday_last();
ferencd@0: }
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_weekday_last
ferencd@0: operator+(const year_month_weekday_last& ymwdl, const months& dm) NOEXCEPT
ferencd@0: {
ferencd@0:     return (ymwdl.year() / ymwdl.month() + dm) / ymwdl.weekday_last();
ferencd@0: }
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_weekday_last
ferencd@0: operator+(const months& dm, const year_month_weekday_last& ymwdl) NOEXCEPT
ferencd@0: {
ferencd@0:     return ymwdl + dm;
ferencd@0: }
ferencd@0: 
ferencd@0: template<class>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: year_month_weekday_last
ferencd@0: operator-(const year_month_weekday_last& ymwdl, const months& dm) NOEXCEPT
ferencd@0: {
ferencd@0:     return ymwdl + (-dm);
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_weekday_last
ferencd@0: operator+(const year_month_weekday_last& ymwdl, const years& dy) NOEXCEPT
ferencd@0: {
ferencd@0:     return {ymwdl.year()+dy, ymwdl.month(), ymwdl.weekday_last()};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_weekday_last
ferencd@0: operator+(const years& dy, const year_month_weekday_last& ymwdl) NOEXCEPT
ferencd@0: {
ferencd@0:     return ymwdl + dy;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_weekday_last
ferencd@0: operator-(const year_month_weekday_last& ymwdl, const years& dy) NOEXCEPT
ferencd@0: {
ferencd@0:     return ymwdl + (-dy);
ferencd@0: }
ferencd@0: 
ferencd@0: // year_month from operator/()
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month
ferencd@0: operator/(const year& y, const month& m) NOEXCEPT
ferencd@0: {
ferencd@0:     return {y, m};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month
ferencd@0: operator/(const year& y, int   m) NOEXCEPT
ferencd@0: {
ferencd@0:     return y / month(static_cast<unsigned>(m));
ferencd@0: }
ferencd@0: 
ferencd@0: // month_day from operator/()
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: month_day
ferencd@0: operator/(const month& m, const day& d) NOEXCEPT
ferencd@0: {
ferencd@0:     return {m, d};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: month_day
ferencd@0: operator/(const day& d, const month& m) NOEXCEPT
ferencd@0: {
ferencd@0:     return m / d;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: month_day
ferencd@0: operator/(const month& m, int d) NOEXCEPT
ferencd@0: {
ferencd@0:     return m / day(static_cast<unsigned>(d));
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: month_day
ferencd@0: operator/(int m, const day& d) NOEXCEPT
ferencd@0: {
ferencd@0:     return month(static_cast<unsigned>(m)) / d;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11 inline month_day operator/(const day& d, int m) NOEXCEPT {return m / d;}
ferencd@0: 
ferencd@0: // month_day_last from operator/()
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: month_day_last
ferencd@0: operator/(const month& m, last_spec) NOEXCEPT
ferencd@0: {
ferencd@0:     return month_day_last{m};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: month_day_last
ferencd@0: operator/(last_spec, const month& m) NOEXCEPT
ferencd@0: {
ferencd@0:     return m/last;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: month_day_last
ferencd@0: operator/(int m, last_spec) NOEXCEPT
ferencd@0: {
ferencd@0:     return month(static_cast<unsigned>(m))/last;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: month_day_last
ferencd@0: operator/(last_spec, int m) NOEXCEPT
ferencd@0: {
ferencd@0:     return m/last;
ferencd@0: }
ferencd@0: 
ferencd@0: // month_weekday from operator/()
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: month_weekday
ferencd@0: operator/(const month& m, const weekday_indexed& wdi) NOEXCEPT
ferencd@0: {
ferencd@0:     return {m, wdi};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: month_weekday
ferencd@0: operator/(const weekday_indexed& wdi, const month& m) NOEXCEPT
ferencd@0: {
ferencd@0:     return m / wdi;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: month_weekday
ferencd@0: operator/(int m, const weekday_indexed& wdi) NOEXCEPT
ferencd@0: {
ferencd@0:     return month(static_cast<unsigned>(m)) / wdi;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: month_weekday
ferencd@0: operator/(const weekday_indexed& wdi, int m) NOEXCEPT
ferencd@0: {
ferencd@0:     return m / wdi;
ferencd@0: }
ferencd@0: 
ferencd@0: // month_weekday_last from operator/()
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: month_weekday_last
ferencd@0: operator/(const month& m, const weekday_last& wdl) NOEXCEPT
ferencd@0: {
ferencd@0:     return {m, wdl};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: month_weekday_last
ferencd@0: operator/(const weekday_last& wdl, const month& m) NOEXCEPT
ferencd@0: {
ferencd@0:     return m / wdl;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: month_weekday_last
ferencd@0: operator/(int m, const weekday_last& wdl) NOEXCEPT
ferencd@0: {
ferencd@0:     return month(static_cast<unsigned>(m)) / wdl;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: month_weekday_last
ferencd@0: operator/(const weekday_last& wdl, int m) NOEXCEPT
ferencd@0: {
ferencd@0:     return m / wdl;
ferencd@0: }
ferencd@0: 
ferencd@0: // year_month_day from operator/()
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_day
ferencd@0: operator/(const year_month& ym, const day& d) NOEXCEPT
ferencd@0: {
ferencd@0:     return {ym.year(), ym.month(), d};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_day
ferencd@0: operator/(const year_month& ym, int d)  NOEXCEPT
ferencd@0: {
ferencd@0:     return ym / day(static_cast<unsigned>(d));
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_day
ferencd@0: operator/(const year& y, const month_day& md) NOEXCEPT
ferencd@0: {
ferencd@0:     return y / md.month() / md.day();
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_day
ferencd@0: operator/(int y, const month_day& md) NOEXCEPT
ferencd@0: {
ferencd@0:     return year(y) / md;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_day
ferencd@0: operator/(const month_day& md, const year& y)  NOEXCEPT
ferencd@0: {
ferencd@0:     return y / md;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_day
ferencd@0: operator/(const month_day& md, int y) NOEXCEPT
ferencd@0: {
ferencd@0:     return year(y) / md;
ferencd@0: }
ferencd@0: 
ferencd@0: // year_month_day_last from operator/()
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_day_last
ferencd@0: operator/(const year_month& ym, last_spec) NOEXCEPT
ferencd@0: {
ferencd@0:     return {ym.year(), month_day_last{ym.month()}};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_day_last
ferencd@0: operator/(const year& y, const month_day_last& mdl) NOEXCEPT
ferencd@0: {
ferencd@0:     return {y, mdl};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_day_last
ferencd@0: operator/(int y, const month_day_last& mdl) NOEXCEPT
ferencd@0: {
ferencd@0:     return year(y) / mdl;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_day_last
ferencd@0: operator/(const month_day_last& mdl, const year& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return y / mdl;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_day_last
ferencd@0: operator/(const month_day_last& mdl, int y) NOEXCEPT
ferencd@0: {
ferencd@0:     return year(y) / mdl;
ferencd@0: }
ferencd@0: 
ferencd@0: // year_month_weekday from operator/()
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_weekday
ferencd@0: operator/(const year_month& ym, const weekday_indexed& wdi) NOEXCEPT
ferencd@0: {
ferencd@0:     return {ym.year(), ym.month(), wdi};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_weekday
ferencd@0: operator/(const year& y, const month_weekday& mwd) NOEXCEPT
ferencd@0: {
ferencd@0:     return {y, mwd.month(), mwd.weekday_indexed()};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_weekday
ferencd@0: operator/(int y, const month_weekday& mwd) NOEXCEPT
ferencd@0: {
ferencd@0:     return year(y) / mwd;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_weekday
ferencd@0: operator/(const month_weekday& mwd, const year& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return y / mwd;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_weekday
ferencd@0: operator/(const month_weekday& mwd, int y) NOEXCEPT
ferencd@0: {
ferencd@0:     return year(y) / mwd;
ferencd@0: }
ferencd@0: 
ferencd@0: // year_month_weekday_last from operator/()
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_weekday_last
ferencd@0: operator/(const year_month& ym, const weekday_last& wdl) NOEXCEPT
ferencd@0: {
ferencd@0:     return {ym.year(), ym.month(), wdl};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_weekday_last
ferencd@0: operator/(const year& y, const month_weekday_last& mwdl) NOEXCEPT
ferencd@0: {
ferencd@0:     return {y, mwdl.month(), mwdl.weekday_last()};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_weekday_last
ferencd@0: operator/(int y, const month_weekday_last& mwdl) NOEXCEPT
ferencd@0: {
ferencd@0:     return year(y) / mwdl;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_weekday_last
ferencd@0: operator/(const month_weekday_last& mwdl, const year& y) NOEXCEPT
ferencd@0: {
ferencd@0:     return y / mwdl;
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: year_month_weekday_last
ferencd@0: operator/(const month_weekday_last& mwdl, int y) NOEXCEPT
ferencd@0: {
ferencd@0:     return year(y) / mwdl;
ferencd@0: }
ferencd@0: 
ferencd@0: template <class Duration>
ferencd@0: struct fields;
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Duration>
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
ferencd@0:           const fields<Duration>& fds, const std::string* abbrev = nullptr,
ferencd@0:           const std::chrono::seconds* offset_sec = nullptr);
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Duration, class Alloc>
ferencd@0: std::basic_istream<CharT, Traits>&
ferencd@0: from_stream(std::basic_istream<CharT, Traits>& is, const CharT* fmt,
ferencd@0:             fields<Duration>& fds, std::basic_string<CharT, Traits, Alloc>* abbrev = nullptr,
ferencd@0:             std::chrono::minutes* offset = nullptr);
ferencd@0: 
ferencd@0: // hh_mm_ss
ferencd@0: 
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: 
ferencd@0: struct undocumented {explicit undocumented() = default;};
ferencd@0: 
ferencd@0: // width<n>::value is the number of fractional decimal digits in 1/n
ferencd@0: // width<0>::value and width<1>::value are defined to be 0
ferencd@0: // If 1/n takes more than 18 fractional decimal digits,
ferencd@0: //   the result is truncated to 19.
ferencd@0: // Example:  width<2>::value    ==  1
ferencd@0: // Example:  width<3>::value    == 19
ferencd@0: // Example:  width<4>::value    ==  2
ferencd@0: // Example:  width<10>::value   ==  1
ferencd@0: // Example:  width<1000>::value ==  3
ferencd@0: template <std::uint64_t n, std::uint64_t d = 10, unsigned w = 0,
ferencd@0:           bool should_continue = !(n < 2) && d != 0 && (w < 19)>
ferencd@0: struct width
ferencd@0: {
ferencd@0:     static CONSTDATA unsigned value = 1 + width<n, d%n*10, w+1>::value;
ferencd@0: };
ferencd@0: 
ferencd@0: template <std::uint64_t n, std::uint64_t d, unsigned w>
ferencd@0: struct width<n, d, w, false>
ferencd@0: {
ferencd@0:     static CONSTDATA unsigned value = 0;
ferencd@0: };
ferencd@0: 
ferencd@0: template <unsigned exp>
ferencd@0: struct static_pow10
ferencd@0: {
ferencd@0: private:
ferencd@0:     static CONSTDATA std::uint64_t h = static_pow10<exp/2>::value;
ferencd@0: public:
ferencd@0:     static CONSTDATA std::uint64_t value = h * h * (exp % 2 ? 10 : 1);
ferencd@0: };
ferencd@0: 
ferencd@0: template <>
ferencd@0: struct static_pow10<0>
ferencd@0: {
ferencd@0:     static CONSTDATA std::uint64_t value = 1;
ferencd@0: };
ferencd@0: 
ferencd@0: template <class Duration>
ferencd@0: class decimal_format_seconds
ferencd@0: {
ferencd@0:     using CT = typename std::common_type<Duration, std::chrono::seconds>::type;
ferencd@0:     using rep = typename CT::rep;
ferencd@0: public:
ferencd@0:     static unsigned constexpr width = detail::width<CT::period::den>::value < 19 ?
ferencd@0:                                       detail::width<CT::period::den>::value : 6u;
ferencd@0:     using precision = std::chrono::duration<rep,
ferencd@0:                                             std::ratio<1, static_pow10<width>::value>>;
ferencd@0: 
ferencd@0: private:
ferencd@0:     std::chrono::seconds s_;
ferencd@0:     precision            sub_s_;
ferencd@0: 
ferencd@0: public:
ferencd@0:     CONSTCD11 decimal_format_seconds()
ferencd@0:         : s_()
ferencd@0:         , sub_s_()
ferencd@0:         {}
ferencd@0: 
ferencd@0:     CONSTCD11 explicit decimal_format_seconds(const Duration& d) NOEXCEPT
ferencd@0:         : s_(std::chrono::duration_cast<std::chrono::seconds>(d))
ferencd@0:         , sub_s_(std::chrono::treat_as_floating_point<rep>::value ? d - s_ :
ferencd@0:                      std::chrono::duration_cast<precision>(d - s_))
ferencd@0:         {}
ferencd@0: 
ferencd@0:     CONSTCD14 std::chrono::seconds& seconds() NOEXCEPT {return s_;}
ferencd@0:     CONSTCD11 std::chrono::seconds seconds() const NOEXCEPT {return s_;}
ferencd@0:     CONSTCD11 precision subseconds() const NOEXCEPT {return sub_s_;}
ferencd@0: 
ferencd@0:     CONSTCD14 precision to_duration() const NOEXCEPT
ferencd@0:     {
ferencd@0:         return s_ + sub_s_;
ferencd@0:     }
ferencd@0: 
ferencd@0:     CONSTCD11 bool in_conventional_range() const NOEXCEPT
ferencd@0:     {
ferencd@0:         return sub_s_ < std::chrono::seconds{1} && s_ < std::chrono::minutes{1};
ferencd@0:     }
ferencd@0: 
ferencd@0:     template <class CharT, class Traits>
ferencd@0:     friend
ferencd@0:     std::basic_ostream<CharT, Traits>&
ferencd@0:     operator<<(std::basic_ostream<CharT, Traits>& os, const decimal_format_seconds& x)
ferencd@0:     {
ferencd@0:         return x.print(os, std::chrono::treat_as_floating_point<rep>{});
ferencd@0:     }
ferencd@0: 
ferencd@0:     template <class CharT, class Traits>
ferencd@0:     std::basic_ostream<CharT, Traits>&
ferencd@0:     print(std::basic_ostream<CharT, Traits>& os, std::true_type) const
ferencd@0:     {
ferencd@0:         date::detail::save_ostream<CharT, Traits> _(os);
ferencd@0:         std::chrono::duration<rep> d = s_ + sub_s_;
ferencd@0:         if (d < std::chrono::seconds{10})
ferencd@0:             os << '0';
ferencd@0:         os << std::fixed << d.count();
ferencd@0:         return os;
ferencd@0:     }
ferencd@0: 
ferencd@0:     template <class CharT, class Traits>
ferencd@0:     std::basic_ostream<CharT, Traits>&
ferencd@0:     print(std::basic_ostream<CharT, Traits>& os, std::false_type) const
ferencd@0:     {
ferencd@0:         date::detail::save_ostream<CharT, Traits> _(os);
ferencd@0:         os.fill('0');
ferencd@0:         os.flags(std::ios::dec | std::ios::right);
ferencd@0:         os.width(2);
ferencd@0:         os << s_.count();
ferencd@0:         if (width > 0)
ferencd@0:         {
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:             os << std::use_facet<std::numpunct<CharT>>(os.getloc()).decimal_point();
ferencd@0: #else
ferencd@0:             os << '.';
ferencd@0: #endif
ferencd@0:             os.width(width);
ferencd@0:             os << sub_s_.count();
ferencd@0:         }
ferencd@0:         return os;
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: template <class Rep, class Period>
ferencd@0: inline
ferencd@0: CONSTCD11
ferencd@0: typename std::enable_if
ferencd@0:          <
ferencd@0:             std::numeric_limits<Rep>::is_signed,
ferencd@0:             std::chrono::duration<Rep, Period>
ferencd@0:          >::type
ferencd@0: abs(std::chrono::duration<Rep, Period> d)
ferencd@0: {
ferencd@0:     return d >= d.zero() ? +d : -d;
ferencd@0: }
ferencd@0: 
ferencd@0: template <class Rep, class Period>
ferencd@0: inline
ferencd@0: CONSTCD11
ferencd@0: typename std::enable_if
ferencd@0:          <
ferencd@0:             !std::numeric_limits<Rep>::is_signed,
ferencd@0:             std::chrono::duration<Rep, Period>
ferencd@0:          >::type
ferencd@0: abs(std::chrono::duration<Rep, Period> d)
ferencd@0: {
ferencd@0:     return d;
ferencd@0: }
ferencd@0: 
ferencd@0: }  // namespace detail
ferencd@0: 
ferencd@0: template <class Duration>
ferencd@0: class hh_mm_ss
ferencd@0: {
ferencd@0:     using dfs = detail::decimal_format_seconds<typename std::common_type<Duration,
ferencd@0:                                                std::chrono::seconds>::type>;
ferencd@0: 
ferencd@0:     std::chrono::hours h_;
ferencd@0:     std::chrono::minutes m_;
ferencd@0:     dfs s_;
ferencd@0:     bool neg_;
ferencd@0: 
ferencd@0: public:
ferencd@0:     static unsigned CONSTDATA fractional_width = dfs::width;
ferencd@0:     using precision = typename dfs::precision;
ferencd@0: 
ferencd@0:     CONSTCD11 hh_mm_ss() NOEXCEPT
ferencd@0:         : hh_mm_ss(Duration::zero())
ferencd@0:         {}
ferencd@0: 
ferencd@0:     CONSTCD11 explicit hh_mm_ss(Duration d) NOEXCEPT
ferencd@0:         : h_(std::chrono::duration_cast<std::chrono::hours>(detail::abs(d)))
ferencd@0:         , m_(std::chrono::duration_cast<std::chrono::minutes>(detail::abs(d)) - h_)
ferencd@0:         , s_(detail::abs(d) - h_ - m_)
ferencd@0:         , neg_(d < Duration::zero())
ferencd@0:         {}
ferencd@0: 
ferencd@0:     CONSTCD11 std::chrono::hours hours() const NOEXCEPT {return h_;}
ferencd@0:     CONSTCD11 std::chrono::minutes minutes() const NOEXCEPT {return m_;}
ferencd@0:     CONSTCD11 std::chrono::seconds seconds() const NOEXCEPT {return s_.seconds();}
ferencd@0:     CONSTCD14 std::chrono::seconds&
ferencd@0:         seconds(detail::undocumented) NOEXCEPT {return s_.seconds();}
ferencd@0:     CONSTCD11 precision subseconds() const NOEXCEPT {return s_.subseconds();}
ferencd@0:     CONSTCD11 bool is_negative() const NOEXCEPT {return neg_;}
ferencd@0: 
ferencd@0:     CONSTCD11 explicit operator  precision()   const NOEXCEPT {return to_duration();}
ferencd@0:     CONSTCD11          precision to_duration() const NOEXCEPT
ferencd@0:         {return (h_ + m_ + s_.to_duration()) * (1-2*neg_);}
ferencd@0: 
ferencd@0:     CONSTCD11 bool in_conventional_range() const NOEXCEPT
ferencd@0:     {
ferencd@0:         return !neg_ && h_ < days{1} && m_ < std::chrono::hours{1} &&
ferencd@0:                s_.in_conventional_range();
ferencd@0:     }
ferencd@0: 
ferencd@0: private:
ferencd@0: 
ferencd@0:     template <class charT, class traits>
ferencd@0:     friend
ferencd@0:     std::basic_ostream<charT, traits>&
ferencd@0:     operator<<(std::basic_ostream<charT, traits>& os, hh_mm_ss const& tod)
ferencd@0:     {
ferencd@0:         if (tod.is_negative())
ferencd@0:             os << '-';
ferencd@0:         if (tod.h_ < std::chrono::hours{10})
ferencd@0:             os << '0';
ferencd@0:         os << tod.h_.count() << ':';
ferencd@0:         if (tod.m_ < std::chrono::minutes{10})
ferencd@0:             os << '0';
ferencd@0:         os << tod.m_.count() << ':' << tod.s_;
ferencd@0:         return os;
ferencd@0:     }
ferencd@0: 
ferencd@0:     template <class CharT, class Traits, class Duration2>
ferencd@0:     friend
ferencd@0:     std::basic_ostream<CharT, Traits>&
ferencd@0:     date::to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
ferencd@0:           const fields<Duration2>& fds, const std::string* abbrev,
ferencd@0:           const std::chrono::seconds* offset_sec);
ferencd@0: 
ferencd@0:     template <class CharT, class Traits, class Duration2, class Alloc>
ferencd@0:     friend
ferencd@0:     std::basic_istream<CharT, Traits>&
ferencd@0:     date::from_stream(std::basic_istream<CharT, Traits>& is, const CharT* fmt,
ferencd@0:           fields<Duration2>& fds,
ferencd@0:           std::basic_string<CharT, Traits, Alloc>* abbrev, std::chrono::minutes* offset);
ferencd@0: };
ferencd@0: 
ferencd@0: inline
ferencd@0: CONSTCD14
ferencd@0: bool
ferencd@0: is_am(std::chrono::hours const& h) NOEXCEPT
ferencd@0: {
ferencd@0:     using std::chrono::hours;
ferencd@0:     return hours{0} <= h && h < hours{12};
ferencd@0: }
ferencd@0: 
ferencd@0: inline
ferencd@0: CONSTCD14
ferencd@0: bool
ferencd@0: is_pm(std::chrono::hours const& h) NOEXCEPT
ferencd@0: {
ferencd@0:     using std::chrono::hours;
ferencd@0:     return hours{12} <= h && h < hours{24};
ferencd@0: }
ferencd@0: 
ferencd@0: inline
ferencd@0: CONSTCD14
ferencd@0: std::chrono::hours
ferencd@0: make12(std::chrono::hours h) NOEXCEPT
ferencd@0: {
ferencd@0:     using std::chrono::hours;
ferencd@0:     if (h < hours{12})
ferencd@0:     {
ferencd@0:         if (h == hours{0})
ferencd@0:             h = hours{12};
ferencd@0:     }
ferencd@0:     else
ferencd@0:     {
ferencd@0:         if (h != hours{12})
ferencd@0:             h = h - hours{12};
ferencd@0:     }
ferencd@0:     return h;
ferencd@0: }
ferencd@0: 
ferencd@0: inline
ferencd@0: CONSTCD14
ferencd@0: std::chrono::hours
ferencd@0: make24(std::chrono::hours h, bool is_pm) NOEXCEPT
ferencd@0: {
ferencd@0:     using std::chrono::hours;
ferencd@0:     if (is_pm)
ferencd@0:     {
ferencd@0:         if (h != hours{12})
ferencd@0:             h = h + hours{12};
ferencd@0:     }
ferencd@0:     else if (h == hours{12})
ferencd@0:         h = hours{0};
ferencd@0:     return h;
ferencd@0: }
ferencd@0: 
ferencd@0: template <class Duration>
ferencd@0: using time_of_day = hh_mm_ss<Duration>;
ferencd@0: 
ferencd@0: template <class Rep, class Period,
ferencd@0:           class = typename std::enable_if
ferencd@0:               <!std::chrono::treat_as_floating_point<Rep>::value>::type>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: hh_mm_ss<std::chrono::duration<Rep, Period>>
ferencd@0: make_time(const std::chrono::duration<Rep, Period>& d)
ferencd@0: {
ferencd@0:     return hh_mm_ss<std::chrono::duration<Rep, Period>>(d);
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Duration>
ferencd@0: inline
ferencd@0: typename std::enable_if
ferencd@0: <
ferencd@0:     !std::chrono::treat_as_floating_point<typename Duration::rep>::value &&
ferencd@0:         std::ratio_less<typename Duration::period, days::period>::value
ferencd@0:     , std::basic_ostream<CharT, Traits>&
ferencd@0: >::type
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const sys_time<Duration>& tp)
ferencd@0: {
ferencd@0:     auto const dp = date::floor<days>(tp);
ferencd@0:     return os << year_month_day(dp) << ' ' << make_time(tp-dp);
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const sys_days& dp)
ferencd@0: {
ferencd@0:     return os << year_month_day(dp);
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Duration>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os, const local_time<Duration>& ut)
ferencd@0: {
ferencd@0:     return (os << sys_time<Duration>{ut.time_since_epoch()});
ferencd@0: }
ferencd@0: 
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: 
ferencd@0: template <class CharT, std::size_t N>
ferencd@0: class string_literal;
ferencd@0: 
ferencd@0: template <class CharT1, class CharT2, std::size_t N1, std::size_t N2>
ferencd@0: inline
ferencd@0: CONSTCD14
ferencd@0: string_literal<typename std::conditional<sizeof(CharT2) <= sizeof(CharT1), CharT1, CharT2>::type,
ferencd@0:                N1 + N2 - 1>
ferencd@0: operator+(const string_literal<CharT1, N1>& x, const string_literal<CharT2, N2>& y) NOEXCEPT;
ferencd@0: 
ferencd@0: template <class CharT, std::size_t N>
ferencd@0: class string_literal
ferencd@0: {
ferencd@0:     CharT p_[N];
ferencd@0: 
ferencd@0:     CONSTCD11 string_literal() NOEXCEPT
ferencd@0:       : p_{}
ferencd@0:     {}
ferencd@0: 
ferencd@0: public:
ferencd@0:     using const_iterator = const CharT*;
ferencd@0: 
ferencd@0:     string_literal(string_literal const&) = default;
ferencd@0:     string_literal& operator=(string_literal const&) = delete;
ferencd@0: 
ferencd@0:     template <std::size_t N1 = 2,
ferencd@0:               class = typename std::enable_if<N1 == N>::type>
ferencd@0:     CONSTCD11 string_literal(CharT c) NOEXCEPT
ferencd@0:         : p_{c}
ferencd@0:     {
ferencd@0:     }
ferencd@0: 
ferencd@0:     template <std::size_t N1 = 3,
ferencd@0:               class = typename std::enable_if<N1 == N>::type>
ferencd@0:     CONSTCD11 string_literal(CharT c1, CharT c2) NOEXCEPT
ferencd@0:         : p_{c1, c2}
ferencd@0:     {
ferencd@0:     }
ferencd@0: 
ferencd@0:     template <std::size_t N1 = 4,
ferencd@0:               class = typename std::enable_if<N1 == N>::type>
ferencd@0:     CONSTCD11 string_literal(CharT c1, CharT c2, CharT c3) NOEXCEPT
ferencd@0:         : p_{c1, c2, c3}
ferencd@0:     {
ferencd@0:     }
ferencd@0: 
ferencd@0:     CONSTCD14 string_literal(const CharT(&a)[N]) NOEXCEPT
ferencd@0:         : p_{}
ferencd@0:     {
ferencd@0:         for (std::size_t i = 0; i < N; ++i)
ferencd@0:             p_[i] = a[i];
ferencd@0:     }
ferencd@0: 
ferencd@0:     template <class U = CharT,
ferencd@0:               class = typename std::enable_if<(1 < sizeof(U))>::type>
ferencd@0:     CONSTCD14 string_literal(const char(&a)[N]) NOEXCEPT
ferencd@0:         : p_{}
ferencd@0:     {
ferencd@0:         for (std::size_t i = 0; i < N; ++i)
ferencd@0:             p_[i] = a[i];
ferencd@0:     }
ferencd@0: 
ferencd@0:     template <class CharT2,
ferencd@0:               class = typename std::enable_if<!std::is_same<CharT2, CharT>::value>::type>
ferencd@0:     CONSTCD14 string_literal(string_literal<CharT2, N> const& a) NOEXCEPT
ferencd@0:         : p_{}
ferencd@0:     {
ferencd@0:         for (std::size_t i = 0; i < N; ++i)
ferencd@0:             p_[i] = a[i];
ferencd@0:     }
ferencd@0: 
ferencd@0:     CONSTCD11 const CharT* data() const NOEXCEPT {return p_;}
ferencd@0:     CONSTCD11 std::size_t size() const NOEXCEPT {return N-1;}
ferencd@0: 
ferencd@0:     CONSTCD11 const_iterator begin() const NOEXCEPT {return p_;}
ferencd@0:     CONSTCD11 const_iterator end()   const NOEXCEPT {return p_ + N-1;}
ferencd@0: 
ferencd@0:     CONSTCD11 CharT const& operator[](std::size_t n) const NOEXCEPT
ferencd@0:     {
ferencd@0:         return p_[n];
ferencd@0:     }
ferencd@0: 
ferencd@0:     template <class Traits>
ferencd@0:     friend
ferencd@0:     std::basic_ostream<CharT, Traits>&
ferencd@0:     operator<<(std::basic_ostream<CharT, Traits>& os, const string_literal& s)
ferencd@0:     {
ferencd@0:         return os << s.p_;
ferencd@0:     }
ferencd@0: 
ferencd@0:     template <class CharT1, class CharT2, std::size_t N1, std::size_t N2>
ferencd@0:     friend
ferencd@0:     CONSTCD14
ferencd@0:     string_literal<typename std::conditional<sizeof(CharT2) <= sizeof(CharT1), CharT1, CharT2>::type,
ferencd@0:                    N1 + N2 - 1>
ferencd@0:     operator+(const string_literal<CharT1, N1>& x, const string_literal<CharT2, N2>& y) NOEXCEPT;
ferencd@0: };
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: string_literal<CharT, 3>
ferencd@0: operator+(const string_literal<CharT, 2>& x, const string_literal<CharT, 2>& y) NOEXCEPT
ferencd@0: {
ferencd@0:   return string_literal<CharT, 3>(x[0], y[0]);
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: string_literal<CharT, 4>
ferencd@0: operator+(const string_literal<CharT, 3>& x, const string_literal<CharT, 2>& y) NOEXCEPT
ferencd@0: {
ferencd@0:   return string_literal<CharT, 4>(x[0], x[1], y[0]);
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT1, class CharT2, std::size_t N1, std::size_t N2>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: string_literal<typename std::conditional<sizeof(CharT2) <= sizeof(CharT1), CharT1, CharT2>::type,
ferencd@0:                N1 + N2 - 1>
ferencd@0: operator+(const string_literal<CharT1, N1>& x, const string_literal<CharT2, N2>& y) NOEXCEPT
ferencd@0: {
ferencd@0:     using CT = typename std::conditional<sizeof(CharT2) <= sizeof(CharT1), CharT1, CharT2>::type;
ferencd@0: 
ferencd@0:     string_literal<CT, N1 + N2 - 1> r;
ferencd@0:     std::size_t i = 0;
ferencd@0:     for (; i < N1-1; ++i)
ferencd@0:        r.p_[i] = CT(x.p_[i]);
ferencd@0:     for (std::size_t j = 0; j < N2; ++j, ++i)
ferencd@0:        r.p_[i] = CT(y.p_[j]);
ferencd@0: 
ferencd@0:     return r;
ferencd@0: }
ferencd@0: 
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Alloc, std::size_t N>
ferencd@0: inline
ferencd@0: std::basic_string<CharT, Traits, Alloc>
ferencd@0: operator+(std::basic_string<CharT, Traits, Alloc> x, const string_literal<CharT, N>& y)
ferencd@0: {
ferencd@0:     x.append(y.data(), y.size());
ferencd@0:     return x;
ferencd@0: }
ferencd@0: 
ferencd@0: #if __cplusplus >= 201402  && (!defined(__EDG_VERSION__) || __EDG_VERSION__ > 411) \
ferencd@0:                            && (!defined(__SUNPRO_CC) || __SUNPRO_CC > 0x5150)
ferencd@0: 
ferencd@0: template <class CharT,
ferencd@0:           class = std::enable_if_t<std::is_same<CharT, char>{} ||
ferencd@0:                                    std::is_same<CharT, wchar_t>{} ||
ferencd@0:                                    std::is_same<CharT, char16_t>{} ||
ferencd@0:                                    std::is_same<CharT, char32_t>{}>>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: string_literal<CharT, 2>
ferencd@0: msl(CharT c) NOEXCEPT
ferencd@0: {
ferencd@0:     return string_literal<CharT, 2>{c};
ferencd@0: }
ferencd@0: 
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: std::size_t
ferencd@0: to_string_len(std::intmax_t i)
ferencd@0: {
ferencd@0:     std::size_t r = 0;
ferencd@0:     do
ferencd@0:     {
ferencd@0:         i /= 10;
ferencd@0:         ++r;
ferencd@0:     } while (i > 0);
ferencd@0:     return r;
ferencd@0: }
ferencd@0: 
ferencd@0: template <std::intmax_t N>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: std::enable_if_t
ferencd@0: <
ferencd@0:     N < 10,
ferencd@0:     string_literal<char, to_string_len(N)+1>
ferencd@0: >
ferencd@0: msl() NOEXCEPT
ferencd@0: {
ferencd@0:     return msl(char(N % 10 + '0'));
ferencd@0: }
ferencd@0: 
ferencd@0: template <std::intmax_t N>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: std::enable_if_t
ferencd@0: <
ferencd@0:     10 <= N,
ferencd@0:     string_literal<char, to_string_len(N)+1>
ferencd@0: >
ferencd@0: msl() NOEXCEPT
ferencd@0: {
ferencd@0:     return msl<N/10>() + msl(char(N % 10 + '0'));
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, std::intmax_t N, std::intmax_t D>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: std::enable_if_t
ferencd@0: <
ferencd@0:     std::ratio<N, D>::type::den != 1,
ferencd@0:     string_literal<CharT, to_string_len(std::ratio<N, D>::type::num) +
ferencd@0:                           to_string_len(std::ratio<N, D>::type::den) + 4>
ferencd@0: >
ferencd@0: msl(std::ratio<N, D>) NOEXCEPT
ferencd@0: {
ferencd@0:     using R = typename std::ratio<N, D>::type;
ferencd@0:     return msl(CharT{'['}) + msl<R::num>() + msl(CharT{'/'}) +
ferencd@0:                              msl<R::den>() + msl(CharT{']'});
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, std::intmax_t N, std::intmax_t D>
ferencd@0: CONSTCD14
ferencd@0: inline
ferencd@0: std::enable_if_t
ferencd@0: <
ferencd@0:     std::ratio<N, D>::type::den == 1,
ferencd@0:     string_literal<CharT, to_string_len(std::ratio<N, D>::type::num) + 3>
ferencd@0: >
ferencd@0: msl(std::ratio<N, D>) NOEXCEPT
ferencd@0: {
ferencd@0:     using R = typename std::ratio<N, D>::type;
ferencd@0:     return msl(CharT{'['}) + msl<R::num>() + msl(CharT{']'});
ferencd@0: }
ferencd@0: 
ferencd@0: 
ferencd@0: #else  // __cplusplus < 201402 || (defined(__EDG_VERSION__) && __EDG_VERSION__ <= 411)
ferencd@0: 
ferencd@0: inline
ferencd@0: std::string
ferencd@0: to_string(std::uint64_t x)
ferencd@0: {
ferencd@0:     return std::to_string(x);
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: inline
ferencd@0: std::basic_string<CharT>
ferencd@0: to_string(std::uint64_t x)
ferencd@0: {
ferencd@0:     auto y = std::to_string(x);
ferencd@0:     return std::basic_string<CharT>(y.begin(), y.end());
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, std::intmax_t N, std::intmax_t D>
ferencd@0: inline
ferencd@0: typename std::enable_if
ferencd@0: <
ferencd@0:     std::ratio<N, D>::type::den != 1,
ferencd@0:     std::basic_string<CharT>
ferencd@0: >::type
ferencd@0: msl(std::ratio<N, D>)
ferencd@0: {
ferencd@0:     using R = typename std::ratio<N, D>::type;
ferencd@0:     return std::basic_string<CharT>(1, '[') + to_string<CharT>(R::num) + CharT{'/'} +
ferencd@0:                                               to_string<CharT>(R::den) + CharT{']'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, std::intmax_t N, std::intmax_t D>
ferencd@0: inline
ferencd@0: typename std::enable_if
ferencd@0: <
ferencd@0:     std::ratio<N, D>::type::den == 1,
ferencd@0:     std::basic_string<CharT>
ferencd@0: >::type
ferencd@0: msl(std::ratio<N, D>)
ferencd@0: {
ferencd@0:     using R = typename std::ratio<N, D>::type;
ferencd@0:     return std::basic_string<CharT>(1, '[') + to_string<CharT>(R::num) + CharT{']'};
ferencd@0: }
ferencd@0: 
ferencd@0: #endif  // __cplusplus < 201402 || (defined(__EDG_VERSION__) && __EDG_VERSION__ <= 411)
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: string_literal<CharT, 2>
ferencd@0: msl(std::atto) NOEXCEPT
ferencd@0: {
ferencd@0:     return string_literal<CharT, 2>{'a'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: string_literal<CharT, 2>
ferencd@0: msl(std::femto) NOEXCEPT
ferencd@0: {
ferencd@0:     return string_literal<CharT, 2>{'f'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: string_literal<CharT, 2>
ferencd@0: msl(std::pico) NOEXCEPT
ferencd@0: {
ferencd@0:     return string_literal<CharT, 2>{'p'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: string_literal<CharT, 2>
ferencd@0: msl(std::nano) NOEXCEPT
ferencd@0: {
ferencd@0:     return string_literal<CharT, 2>{'n'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: typename std::enable_if
ferencd@0: <
ferencd@0:     std::is_same<CharT, char>::value,
ferencd@0:     string_literal<char, 3>
ferencd@0: >::type
ferencd@0: msl(std::micro) NOEXCEPT
ferencd@0: {
ferencd@0:     return string_literal<char, 3>{'\xC2', '\xB5'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: typename std::enable_if
ferencd@0: <
ferencd@0:     !std::is_same<CharT, char>::value,
ferencd@0:     string_literal<CharT, 2>
ferencd@0: >::type
ferencd@0: msl(std::micro) NOEXCEPT
ferencd@0: {
ferencd@0:     return string_literal<CharT, 2>{CharT{static_cast<unsigned char>('\xB5')}};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: string_literal<CharT, 2>
ferencd@0: msl(std::milli) NOEXCEPT
ferencd@0: {
ferencd@0:     return string_literal<CharT, 2>{'m'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: string_literal<CharT, 2>
ferencd@0: msl(std::centi) NOEXCEPT
ferencd@0: {
ferencd@0:     return string_literal<CharT, 2>{'c'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: string_literal<CharT, 3>
ferencd@0: msl(std::deca) NOEXCEPT
ferencd@0: {
ferencd@0:     return string_literal<CharT, 3>{'d', 'a'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: string_literal<CharT, 2>
ferencd@0: msl(std::deci) NOEXCEPT
ferencd@0: {
ferencd@0:     return string_literal<CharT, 2>{'d'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: string_literal<CharT, 2>
ferencd@0: msl(std::hecto) NOEXCEPT
ferencd@0: {
ferencd@0:     return string_literal<CharT, 2>{'h'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: string_literal<CharT, 2>
ferencd@0: msl(std::kilo) NOEXCEPT
ferencd@0: {
ferencd@0:     return string_literal<CharT, 2>{'k'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: string_literal<CharT, 2>
ferencd@0: msl(std::mega) NOEXCEPT
ferencd@0: {
ferencd@0:     return string_literal<CharT, 2>{'M'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: string_literal<CharT, 2>
ferencd@0: msl(std::giga) NOEXCEPT
ferencd@0: {
ferencd@0:     return string_literal<CharT, 2>{'G'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: string_literal<CharT, 2>
ferencd@0: msl(std::tera) NOEXCEPT
ferencd@0: {
ferencd@0:     return string_literal<CharT, 2>{'T'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: string_literal<CharT, 2>
ferencd@0: msl(std::peta) NOEXCEPT
ferencd@0: {
ferencd@0:     return string_literal<CharT, 2>{'P'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: string_literal<CharT, 2>
ferencd@0: msl(std::exa) NOEXCEPT
ferencd@0: {
ferencd@0:     return string_literal<CharT, 2>{'E'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Period>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: auto
ferencd@0: get_units(Period p)
ferencd@0:  -> decltype(msl<CharT>(p) + string_literal<CharT, 2>{'s'})
ferencd@0: {
ferencd@0:     return msl<CharT>(p) + string_literal<CharT, 2>{'s'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: string_literal<CharT, 2>
ferencd@0: get_units(std::ratio<1>)
ferencd@0: {
ferencd@0:     return string_literal<CharT, 2>{'s'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: string_literal<CharT, 2>
ferencd@0: get_units(std::ratio<3600>)
ferencd@0: {
ferencd@0:     return string_literal<CharT, 2>{'h'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: string_literal<CharT, 4>
ferencd@0: get_units(std::ratio<60>)
ferencd@0: {
ferencd@0:     return string_literal<CharT, 4>{'m', 'i', 'n'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT>
ferencd@0: CONSTCD11
ferencd@0: inline
ferencd@0: string_literal<CharT, 2>
ferencd@0: get_units(std::ratio<86400>)
ferencd@0: {
ferencd@0:     return string_literal<CharT, 2>{'d'};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits = std::char_traits<CharT>>
ferencd@0: struct make_string;
ferencd@0: 
ferencd@0: template <>
ferencd@0: struct make_string<char>
ferencd@0: {
ferencd@0:     template <class Rep>
ferencd@0:     static
ferencd@0:     std::string
ferencd@0:     from(Rep n)
ferencd@0:     {
ferencd@0:         return std::to_string(n);
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: template <class Traits>
ferencd@0: struct make_string<char, Traits>
ferencd@0: {
ferencd@0:     template <class Rep>
ferencd@0:     static
ferencd@0:     std::basic_string<char, Traits>
ferencd@0:     from(Rep n)
ferencd@0:     {
ferencd@0:         auto s = std::to_string(n);
ferencd@0:         return std::basic_string<char, Traits>(s.begin(), s.end());
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: template <>
ferencd@0: struct make_string<wchar_t>
ferencd@0: {
ferencd@0:     template <class Rep>
ferencd@0:     static
ferencd@0:     std::wstring
ferencd@0:     from(Rep n)
ferencd@0:     {
ferencd@0:         return std::to_wstring(n);
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: template <class Traits>
ferencd@0: struct make_string<wchar_t, Traits>
ferencd@0: {
ferencd@0:     template <class Rep>
ferencd@0:     static
ferencd@0:     std::basic_string<wchar_t, Traits>
ferencd@0:     from(Rep n)
ferencd@0:     {
ferencd@0:         auto s = std::to_wstring(n);
ferencd@0:         return std::basic_string<wchar_t, Traits>(s.begin(), s.end());
ferencd@0:     }
ferencd@0: };
ferencd@0: 
ferencd@0: }  // namespace detail
ferencd@0: 
ferencd@0: // to_stream
ferencd@0: 
ferencd@0: CONSTDATA year nanyear{-32768};
ferencd@0: 
ferencd@0: template <class Duration>
ferencd@0: struct fields
ferencd@0: {
ferencd@0:     year_month_day        ymd{nanyear/0/0};
ferencd@0:     weekday               wd{8u};
ferencd@0:     hh_mm_ss<Duration>    tod{};
ferencd@0:     bool                  has_tod = false;
ferencd@0: 
ferencd@0:     fields() = default;
ferencd@0: 
ferencd@0:     fields(year_month_day ymd_) : ymd(ymd_) {}
ferencd@0:     fields(weekday wd_) : wd(wd_) {}
ferencd@0:     fields(hh_mm_ss<Duration> tod_) : tod(tod_), has_tod(true) {}
ferencd@0: 
ferencd@0:     fields(year_month_day ymd_, weekday wd_) : ymd(ymd_), wd(wd_) {}
ferencd@0:     fields(year_month_day ymd_, hh_mm_ss<Duration> tod_) : ymd(ymd_), tod(tod_),
ferencd@0:                                                            has_tod(true) {}
ferencd@0: 
ferencd@0:     fields(weekday wd_, hh_mm_ss<Duration> tod_) : wd(wd_), tod(tod_), has_tod(true) {}
ferencd@0: 
ferencd@0:     fields(year_month_day ymd_, weekday wd_, hh_mm_ss<Duration> tod_)
ferencd@0:         : ymd(ymd_)
ferencd@0:         , wd(wd_)
ferencd@0:         , tod(tod_)
ferencd@0:         , has_tod(true)
ferencd@0:         {}
ferencd@0: };
ferencd@0: 
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Duration>
ferencd@0: unsigned
ferencd@0: extract_weekday(std::basic_ostream<CharT, Traits>& os, const fields<Duration>& fds)
ferencd@0: {
ferencd@0:     if (!fds.ymd.ok() && !fds.wd.ok())
ferencd@0:     {
ferencd@0:         // fds does not contain a valid weekday
ferencd@0:         os.setstate(std::ios::failbit);
ferencd@0:         return 8;
ferencd@0:     }
ferencd@0:     weekday wd;
ferencd@0:     if (fds.ymd.ok())
ferencd@0:     {
ferencd@0:         wd = weekday{sys_days(fds.ymd)};
ferencd@0:         if (fds.wd.ok() && wd != fds.wd)
ferencd@0:         {
ferencd@0:             // fds.ymd and fds.wd are inconsistent
ferencd@0:             os.setstate(std::ios::failbit);
ferencd@0:             return 8;
ferencd@0:         }
ferencd@0:     }
ferencd@0:     else
ferencd@0:         wd = fds.wd;
ferencd@0:     return static_cast<unsigned>((wd - Sunday).count());
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Duration>
ferencd@0: unsigned
ferencd@0: extract_month(std::basic_ostream<CharT, Traits>& os, const fields<Duration>& fds)
ferencd@0: {
ferencd@0:     if (!fds.ymd.month().ok())
ferencd@0:     {
ferencd@0:         // fds does not contain a valid month
ferencd@0:         os.setstate(std::ios::failbit);
ferencd@0:         return 0;
ferencd@0:     }
ferencd@0:     return static_cast<unsigned>(fds.ymd.month());
ferencd@0: }
ferencd@0: 
ferencd@0: }  // namespace detail
ferencd@0: 
ferencd@0: #if ONLY_C_LOCALE
ferencd@0: 
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: 
ferencd@0: inline
ferencd@0: std::pair<const std::string*, const std::string*>
ferencd@0: weekday_names()
ferencd@0: {
ferencd@0:     static const std::string nm[] =
ferencd@0:     {
ferencd@0:         "Sunday",
ferencd@0:         "Monday",
ferencd@0:         "Tuesday",
ferencd@0:         "Wednesday",
ferencd@0:         "Thursday",
ferencd@0:         "Friday",
ferencd@0:         "Saturday",
ferencd@0:         "Sun",
ferencd@0:         "Mon",
ferencd@0:         "Tue",
ferencd@0:         "Wed",
ferencd@0:         "Thu",
ferencd@0:         "Fri",
ferencd@0:         "Sat"
ferencd@0:     };
ferencd@0:     return std::make_pair(nm, nm+sizeof(nm)/sizeof(nm[0]));
ferencd@0: }
ferencd@0: 
ferencd@0: inline
ferencd@0: std::pair<const std::string*, const std::string*>
ferencd@0: month_names()
ferencd@0: {
ferencd@0:     static const std::string nm[] =
ferencd@0:     {
ferencd@0:         "January",
ferencd@0:         "February",
ferencd@0:         "March",
ferencd@0:         "April",
ferencd@0:         "May",
ferencd@0:         "June",
ferencd@0:         "July",
ferencd@0:         "August",
ferencd@0:         "September",
ferencd@0:         "October",
ferencd@0:         "November",
ferencd@0:         "December",
ferencd@0:         "Jan",
ferencd@0:         "Feb",
ferencd@0:         "Mar",
ferencd@0:         "Apr",
ferencd@0:         "May",
ferencd@0:         "Jun",
ferencd@0:         "Jul",
ferencd@0:         "Aug",
ferencd@0:         "Sep",
ferencd@0:         "Oct",
ferencd@0:         "Nov",
ferencd@0:         "Dec"
ferencd@0:     };
ferencd@0:     return std::make_pair(nm, nm+sizeof(nm)/sizeof(nm[0]));
ferencd@0: }
ferencd@0: 
ferencd@0: inline
ferencd@0: std::pair<const std::string*, const std::string*>
ferencd@0: ampm_names()
ferencd@0: {
ferencd@0:     static const std::string nm[] =
ferencd@0:     {
ferencd@0:         "AM",
ferencd@0:         "PM"
ferencd@0:     };
ferencd@0:     return std::make_pair(nm, nm+sizeof(nm)/sizeof(nm[0]));
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class FwdIter>
ferencd@0: FwdIter
ferencd@0: scan_keyword(std::basic_istream<CharT, Traits>& is, FwdIter kb, FwdIter ke)
ferencd@0: {
ferencd@0:     size_t nkw = static_cast<size_t>(std::distance(kb, ke));
ferencd@0:     const unsigned char doesnt_match = '\0';
ferencd@0:     const unsigned char might_match = '\1';
ferencd@0:     const unsigned char does_match = '\2';
ferencd@0:     unsigned char statbuf[100];
ferencd@0:     unsigned char* status = statbuf;
ferencd@0:     std::unique_ptr<unsigned char, void(*)(void*)> stat_hold(0, free);
ferencd@0:     if (nkw > sizeof(statbuf))
ferencd@0:     {
ferencd@0:         status = (unsigned char*)std::malloc(nkw);
ferencd@0:         if (status == nullptr)
ferencd@0:             throw std::bad_alloc();
ferencd@0:         stat_hold.reset(status);
ferencd@0:     }
ferencd@0:     size_t n_might_match = nkw;  // At this point, any keyword might match
ferencd@0:     size_t n_does_match = 0;     // but none of them definitely do
ferencd@0:     // Initialize all statuses to might_match, except for "" keywords are does_match
ferencd@0:     unsigned char* st = status;
ferencd@0:     for (auto ky = kb; ky != ke; ++ky, ++st)
ferencd@0:     {
ferencd@0:         if (!ky->empty())
ferencd@0:             *st = might_match;
ferencd@0:         else
ferencd@0:         {
ferencd@0:             *st = does_match;
ferencd@0:             --n_might_match;
ferencd@0:             ++n_does_match;
ferencd@0:         }
ferencd@0:     }
ferencd@0:     // While there might be a match, test keywords against the next CharT
ferencd@0:     for (size_t indx = 0; is && n_might_match > 0; ++indx)
ferencd@0:     {
ferencd@0:         // Peek at the next CharT but don't consume it
ferencd@0:         auto ic = is.peek();
ferencd@0:         if (ic == EOF)
ferencd@0:         {
ferencd@0:             is.setstate(std::ios::eofbit);
ferencd@0:             break;
ferencd@0:         }
ferencd@0:         auto c = static_cast<char>(toupper(ic));
ferencd@0:         bool consume = false;
ferencd@0:         // For each keyword which might match, see if the indx character is c
ferencd@0:         // If a match if found, consume c
ferencd@0:         // If a match is found, and that is the last character in the keyword,
ferencd@0:         //    then that keyword matches.
ferencd@0:         // If the keyword doesn't match this character, then change the keyword
ferencd@0:         //    to doesn't match
ferencd@0:         st = status;
ferencd@0:         for (auto ky = kb; ky != ke; ++ky, ++st)
ferencd@0:         {
ferencd@0:             if (*st == might_match)
ferencd@0:             {
ferencd@0:                 if (c == static_cast<char>(toupper((*ky)[indx])))
ferencd@0:                 {
ferencd@0:                     consume = true;
ferencd@0:                     if (ky->size() == indx+1)
ferencd@0:                     {
ferencd@0:                         *st = does_match;
ferencd@0:                         --n_might_match;
ferencd@0:                         ++n_does_match;
ferencd@0:                     }
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     *st = doesnt_match;
ferencd@0:                     --n_might_match;
ferencd@0:                 }
ferencd@0:             }
ferencd@0:         }
ferencd@0:         // consume if we matched a character
ferencd@0:         if (consume)
ferencd@0:         {
ferencd@0:             (void)is.get();
ferencd@0:             // If we consumed a character and there might be a matched keyword that
ferencd@0:             //   was marked matched on a previous iteration, then such keywords
ferencd@0:             //   are now marked as not matching.
ferencd@0:             if (n_might_match + n_does_match > 1)
ferencd@0:             {
ferencd@0:                 st = status;
ferencd@0:                 for (auto ky = kb; ky != ke; ++ky, ++st)
ferencd@0:                 {
ferencd@0:                     if (*st == does_match && ky->size() != indx+1)
ferencd@0:                     {
ferencd@0:                         *st = doesnt_match;
ferencd@0:                         --n_does_match;
ferencd@0:                     }
ferencd@0:                 }
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0:     // We've exited the loop because we hit eof and/or we have no more "might matches".
ferencd@0:     // Return the first matching result
ferencd@0:     for (st = status; kb != ke; ++kb, ++st)
ferencd@0:         if (*st == does_match)
ferencd@0:             break;
ferencd@0:     if (kb == ke)
ferencd@0:         is.setstate(std::ios::failbit);
ferencd@0:     return kb;
ferencd@0: }
ferencd@0: 
ferencd@0: }  // namespace detail
ferencd@0: 
ferencd@0: #endif  // ONLY_C_LOCALE
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Duration>
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
ferencd@0:           const fields<Duration>& fds, const std::string* abbrev,
ferencd@0:           const std::chrono::seconds* offset_sec)
ferencd@0: {
ferencd@0: #if ONLY_C_LOCALE
ferencd@0:     using detail::weekday_names;
ferencd@0:     using detail::month_names;
ferencd@0:     using detail::ampm_names;
ferencd@0: #endif
ferencd@0:     using detail::save_ostream;
ferencd@0:     using detail::get_units;
ferencd@0:     using detail::extract_weekday;
ferencd@0:     using detail::extract_month;
ferencd@0:     using std::ios;
ferencd@0:     using std::chrono::duration_cast;
ferencd@0:     using std::chrono::seconds;
ferencd@0:     using std::chrono::minutes;
ferencd@0:     using std::chrono::hours;
ferencd@0:     date::detail::save_ostream<CharT, Traits> ss(os);
ferencd@0:     os.fill(' ');
ferencd@0:     os.flags(std::ios::skipws | std::ios::dec);
ferencd@0:     os.width(0);
ferencd@0:     tm tm{};
ferencd@0:     bool insert_negative = fds.has_tod && fds.tod.to_duration() < Duration::zero();
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:     auto& facet = std::use_facet<std::time_put<CharT>>(os.getloc());
ferencd@0: #endif
ferencd@0:     const CharT* command = nullptr;
ferencd@0:     CharT modified = CharT{};
ferencd@0:     for (; *fmt; ++fmt)
ferencd@0:     {
ferencd@0:         switch (*fmt)
ferencd@0:         {
ferencd@0:         case 'a':
ferencd@0:         case 'A':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{})
ferencd@0:                 {
ferencd@0:                     tm.tm_wday = static_cast<int>(extract_weekday(os, fds));
ferencd@0:                     if (os.fail())
ferencd@0:                         return os;
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     const CharT f[] = {'%', *fmt};
ferencd@0:                     facet.put(os, os, os.fill(), &tm, std::begin(f), std::end(f));
ferencd@0: #else  // ONLY_C_LOCALE
ferencd@0:                     os << weekday_names().first[tm.tm_wday+7*(*fmt == 'a')];
ferencd@0: #endif  // ONLY_C_LOCALE
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'b':
ferencd@0:         case 'B':
ferencd@0:         case 'h':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{})
ferencd@0:                 {
ferencd@0:                     tm.tm_mon = static_cast<int>(extract_month(os, fds)) - 1;
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     const CharT f[] = {'%', *fmt};
ferencd@0:                     facet.put(os, os, os.fill(), &tm, std::begin(f), std::end(f));
ferencd@0: #else  // ONLY_C_LOCALE
ferencd@0:                     os << month_names().first[tm.tm_mon+12*(*fmt != 'B')];
ferencd@0: #endif  // ONLY_C_LOCALE
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'c':
ferencd@0:         case 'x':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{'O'})
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     if (!fds.ymd.ok())
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0:                     if (*fmt == 'c' && !fds.has_tod)
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     tm = std::tm{};
ferencd@0:                     auto const& ymd = fds.ymd;
ferencd@0:                     auto ld = local_days(ymd);
ferencd@0:                     if (*fmt == 'c')
ferencd@0:                     {
ferencd@0:                         tm.tm_sec = static_cast<int>(fds.tod.seconds().count());
ferencd@0:                         tm.tm_min = static_cast<int>(fds.tod.minutes().count());
ferencd@0:                         tm.tm_hour = static_cast<int>(fds.tod.hours().count());
ferencd@0:                     }
ferencd@0:                     tm.tm_mday = static_cast<int>(static_cast<unsigned>(ymd.day()));
ferencd@0:                     tm.tm_mon = static_cast<int>(extract_month(os, fds) - 1);
ferencd@0:                     tm.tm_year = static_cast<int>(ymd.year()) - 1900;
ferencd@0:                     tm.tm_wday = static_cast<int>(extract_weekday(os, fds));
ferencd@0:                     if (os.fail())
ferencd@0:                         return os;
ferencd@0:                     tm.tm_yday = static_cast<int>((ld - local_days(ymd.year()/1/1)).count());
ferencd@0:                     CharT f[3] = {'%'};
ferencd@0:                     auto fe = std::begin(f) + 1;
ferencd@0:                     if (modified == CharT{'E'})
ferencd@0:                         *fe++ = modified;
ferencd@0:                     *fe++ = *fmt;
ferencd@0:                     facet.put(os, os, os.fill(), &tm, std::begin(f), fe);
ferencd@0: #else  // ONLY_C_LOCALE
ferencd@0:                     if (*fmt == 'c')
ferencd@0:                     {
ferencd@0:                         auto wd = static_cast<int>(extract_weekday(os, fds));
ferencd@0:                         os << weekday_names().first[static_cast<unsigned>(wd)+7]
ferencd@0:                            << ' ';
ferencd@0:                         os << month_names().first[extract_month(os, fds)-1+12] << ' ';
ferencd@0:                         auto d = static_cast<int>(static_cast<unsigned>(fds.ymd.day()));
ferencd@0:                         if (d < 10)
ferencd@0:                             os << ' ';
ferencd@0:                         os << d << ' '
ferencd@0:                            << make_time(duration_cast<seconds>(fds.tod.to_duration()))
ferencd@0:                            << ' ' << fds.ymd.year();
ferencd@0: 
ferencd@0:                     }
ferencd@0:                     else  // *fmt == 'x'
ferencd@0:                     {
ferencd@0:                         auto const& ymd = fds.ymd;
ferencd@0:                         save_ostream<CharT, Traits> _(os);
ferencd@0:                         os.fill('0');
ferencd@0:                         os.flags(std::ios::dec | std::ios::right);
ferencd@0:                         os.width(2);
ferencd@0:                         os << static_cast<unsigned>(ymd.month()) << CharT{'/'};
ferencd@0:                         os.width(2);
ferencd@0:                         os << static_cast<unsigned>(ymd.day()) << CharT{'/'};
ferencd@0:                         os.width(2);
ferencd@0:                         os << static_cast<int>(ymd.year()) % 100;
ferencd@0:                     }
ferencd@0: #endif  // ONLY_C_LOCALE
ferencd@0:                 }
ferencd@0:                 command = nullptr;
ferencd@0:                 modified = CharT{};
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'C':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{'O'})
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     if (!fds.ymd.year().ok())
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0:                     auto y = static_cast<int>(fds.ymd.year());
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     if (modified == CharT{})
ferencd@0: #endif
ferencd@0:                     {
ferencd@0:                         save_ostream<CharT, Traits> _(os);
ferencd@0:                         os.fill('0');
ferencd@0:                         os.flags(std::ios::dec | std::ios::right);
ferencd@0:                         if (y >= 0)
ferencd@0:                         {
ferencd@0:                             os.width(2);
ferencd@0:                             os << y/100;
ferencd@0:                         }
ferencd@0:                         else
ferencd@0:                         {
ferencd@0:                             os << CharT{'-'};
ferencd@0:                             os.width(2);
ferencd@0:                             os << -(y-99)/100;
ferencd@0:                         }
ferencd@0:                     }
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     else if (modified == CharT{'E'})
ferencd@0:                     {
ferencd@0:                         tm.tm_year = y - 1900;
ferencd@0:                         CharT f[3] = {'%', 'E', 'C'};
ferencd@0:                         facet.put(os, os, os.fill(), &tm, std::begin(f), std::end(f));
ferencd@0:                     }
ferencd@0: #endif
ferencd@0:                 }
ferencd@0:                 command = nullptr;
ferencd@0:                 modified = CharT{};
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'd':
ferencd@0:         case 'e':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{'E'})
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     if (!fds.ymd.day().ok())
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0:                     auto d = static_cast<int>(static_cast<unsigned>(fds.ymd.day()));
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     if (modified == CharT{})
ferencd@0: #endif
ferencd@0:                     {
ferencd@0:                         save_ostream<CharT, Traits> _(os);
ferencd@0:                         if (*fmt == CharT{'d'})
ferencd@0:                             os.fill('0');
ferencd@0:                         else
ferencd@0:                             os.fill(' ');
ferencd@0:                         os.flags(std::ios::dec | std::ios::right);
ferencd@0:                         os.width(2);
ferencd@0:                         os << d;
ferencd@0:                     }
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     else if (modified == CharT{'O'})
ferencd@0:                     {
ferencd@0:                         tm.tm_mday = d;
ferencd@0:                         CharT f[3] = {'%', 'O', *fmt};
ferencd@0:                         facet.put(os, os, os.fill(), &tm, std::begin(f), std::end(f));
ferencd@0:                     }
ferencd@0: #endif
ferencd@0:                 }
ferencd@0:                 command = nullptr;
ferencd@0:                 modified = CharT{};
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'D':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{})
ferencd@0:                 {
ferencd@0:                     if (!fds.ymd.ok())
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0:                     auto const& ymd = fds.ymd;
ferencd@0:                     save_ostream<CharT, Traits> _(os);
ferencd@0:                     os.fill('0');
ferencd@0:                     os.flags(std::ios::dec | std::ios::right);
ferencd@0:                     os.width(2);
ferencd@0:                     os << static_cast<unsigned>(ymd.month()) << CharT{'/'};
ferencd@0:                     os.width(2);
ferencd@0:                     os << static_cast<unsigned>(ymd.day()) << CharT{'/'};
ferencd@0:                     os.width(2);
ferencd@0:                     os << static_cast<int>(ymd.year()) % 100;
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'F':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{})
ferencd@0:                 {
ferencd@0:                     if (!fds.ymd.ok())
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0:                     auto const& ymd = fds.ymd;
ferencd@0:                     save_ostream<CharT, Traits> _(os);
ferencd@0:                     os.fill('0');
ferencd@0:                     os.flags(std::ios::dec | std::ios::right);
ferencd@0:                     os.width(4);
ferencd@0:                     os << static_cast<int>(ymd.year()) << CharT{'-'};
ferencd@0:                     os.width(2);
ferencd@0:                     os << static_cast<unsigned>(ymd.month()) << CharT{'-'};
ferencd@0:                     os.width(2);
ferencd@0:                     os << static_cast<unsigned>(ymd.day());
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'g':
ferencd@0:         case 'G':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{})
ferencd@0:                 {
ferencd@0:                     if (!fds.ymd.ok())
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0:                     auto ld = local_days(fds.ymd);
ferencd@0:                     auto y = year_month_day{ld + days{3}}.year();
ferencd@0:                     auto start = local_days((y-years{1})/December/Thursday[last]) +
ferencd@0:                                  (Monday-Thursday);
ferencd@0:                     if (ld < start)
ferencd@0:                         --y;
ferencd@0:                     if (*fmt == CharT{'G'})
ferencd@0:                         os << y;
ferencd@0:                     else
ferencd@0:                     {
ferencd@0:                         save_ostream<CharT, Traits> _(os);
ferencd@0:                         os.fill('0');
ferencd@0:                         os.flags(std::ios::dec | std::ios::right);
ferencd@0:                         os.width(2);
ferencd@0:                         os << std::abs(static_cast<int>(y)) % 100;
ferencd@0:                     }
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'H':
ferencd@0:         case 'I':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{'E'})
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     if (!fds.has_tod)
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0:                     if (insert_negative)
ferencd@0:                     {
ferencd@0:                         os << '-';
ferencd@0:                         insert_negative = false;
ferencd@0:                     }
ferencd@0:                     auto hms = fds.tod;
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     if (modified == CharT{})
ferencd@0: #endif
ferencd@0:                     {
ferencd@0:                         auto h = *fmt == CharT{'I'} ? date::make12(hms.hours()) : hms.hours();
ferencd@0:                         if (h < hours{10})
ferencd@0:                             os << CharT{'0'};
ferencd@0:                         os << h.count();
ferencd@0:                     }
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     else if (modified == CharT{'O'})
ferencd@0:                     {
ferencd@0:                         const CharT f[] = {'%', modified, *fmt};
ferencd@0:                         tm.tm_hour = static_cast<int>(hms.hours().count());
ferencd@0:                         facet.put(os, os, os.fill(), &tm, std::begin(f), std::end(f));
ferencd@0:                     }
ferencd@0: #endif
ferencd@0:                 }
ferencd@0:                 modified = CharT{};
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'j':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{})
ferencd@0:                 {
ferencd@0:                     if (fds.ymd.ok() || fds.has_tod)
ferencd@0:                     {
ferencd@0:                         days doy;
ferencd@0:                         if (fds.ymd.ok())
ferencd@0:                         {
ferencd@0:                             auto ld = local_days(fds.ymd);
ferencd@0:                             auto y = fds.ymd.year();
ferencd@0:                             doy = ld - local_days(y/January/1) + days{1};
ferencd@0:                         }
ferencd@0:                         else
ferencd@0:                         {
ferencd@0:                             doy = duration_cast<days>(fds.tod.to_duration());
ferencd@0:                         }
ferencd@0:                         save_ostream<CharT, Traits> _(os);
ferencd@0:                         os.fill('0');
ferencd@0:                         os.flags(std::ios::dec | std::ios::right);
ferencd@0:                         os.width(3);
ferencd@0:                         os << doy.count();
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                     {
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0:                     }
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'm':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{'E'})
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     if (!fds.ymd.month().ok())
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0:                     auto m = static_cast<unsigned>(fds.ymd.month());
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     if (modified == CharT{})
ferencd@0: #endif
ferencd@0:                     {
ferencd@0:                         if (m < 10)
ferencd@0:                             os << CharT{'0'};
ferencd@0:                         os << m;
ferencd@0:                     }
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     else if (modified == CharT{'O'})
ferencd@0:                     {
ferencd@0:                         const CharT f[] = {'%', modified, *fmt};
ferencd@0:                         tm.tm_mon = static_cast<int>(m-1);
ferencd@0:                         facet.put(os, os, os.fill(), &tm, std::begin(f), std::end(f));
ferencd@0:                     }
ferencd@0: #endif
ferencd@0:                 }
ferencd@0:                 modified = CharT{};
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'M':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{'E'})
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     if (!fds.has_tod)
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0:                     if (insert_negative)
ferencd@0:                     {
ferencd@0:                         os << '-';
ferencd@0:                         insert_negative = false;
ferencd@0:                     }
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     if (modified == CharT{})
ferencd@0: #endif
ferencd@0:                     {
ferencd@0:                         if (fds.tod.minutes() < minutes{10})
ferencd@0:                             os << CharT{'0'};
ferencd@0:                         os << fds.tod.minutes().count();
ferencd@0:                     }
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     else if (modified == CharT{'O'})
ferencd@0:                     {
ferencd@0:                         const CharT f[] = {'%', modified, *fmt};
ferencd@0:                         tm.tm_min = static_cast<int>(fds.tod.minutes().count());
ferencd@0:                         facet.put(os, os, os.fill(), &tm, std::begin(f), std::end(f));
ferencd@0:                     }
ferencd@0: #endif
ferencd@0:                 }
ferencd@0:                 modified = CharT{};
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'n':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{})
ferencd@0:                     os << CharT{'\n'};
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'p':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{})
ferencd@0:                 {
ferencd@0:                     if (!fds.has_tod)
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     const CharT f[] = {'%', *fmt};
ferencd@0:                     tm.tm_hour = static_cast<int>(fds.tod.hours().count());
ferencd@0:                     facet.put(os, os, os.fill(), &tm, std::begin(f), std::end(f));
ferencd@0: #else
ferencd@0:                     if (date::is_am(fds.tod.hours()))
ferencd@0:                         os << ampm_names().first[0];
ferencd@0:                     else
ferencd@0:                         os << ampm_names().first[1];
ferencd@0: #endif
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                 }
ferencd@0:                 modified = CharT{};
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'Q':
ferencd@0:         case 'q':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{})
ferencd@0:                 {
ferencd@0:                     if (!fds.has_tod)
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0:                     auto d = fds.tod.to_duration();
ferencd@0:                     if (*fmt == 'q')
ferencd@0:                         os << get_units<CharT>(typename decltype(d)::period::type{});
ferencd@0:                     else
ferencd@0:                         os << d.count();
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                 }
ferencd@0:                 modified = CharT{};
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'r':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{})
ferencd@0:                 {
ferencd@0:                     if (!fds.has_tod)
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     const CharT f[] = {'%', *fmt};
ferencd@0:                     tm.tm_hour = static_cast<int>(fds.tod.hours().count());
ferencd@0:                     tm.tm_min = static_cast<int>(fds.tod.minutes().count());
ferencd@0:                     tm.tm_sec = static_cast<int>(fds.tod.seconds().count());
ferencd@0:                     facet.put(os, os, os.fill(), &tm, std::begin(f), std::end(f));
ferencd@0: #else
ferencd@0:                     hh_mm_ss<seconds> tod(duration_cast<seconds>(fds.tod.to_duration()));
ferencd@0:                     save_ostream<CharT, Traits> _(os);
ferencd@0:                     os.fill('0');
ferencd@0:                     os.width(2);
ferencd@0:                     os << date::make12(tod.hours()).count() << CharT{':'};
ferencd@0:                     os.width(2);
ferencd@0:                     os << tod.minutes().count() << CharT{':'};
ferencd@0:                     os.width(2);
ferencd@0:                     os << tod.seconds().count() << CharT{' '};
ferencd@0:                     if (date::is_am(tod.hours()))
ferencd@0:                         os << ampm_names().first[0];
ferencd@0:                     else
ferencd@0:                         os << ampm_names().first[1];
ferencd@0: #endif
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                 }
ferencd@0:                 modified = CharT{};
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'R':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{})
ferencd@0:                 {
ferencd@0:                     if (!fds.has_tod)
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0:                     if (fds.tod.hours() < hours{10})
ferencd@0:                         os << CharT{'0'};
ferencd@0:                     os << fds.tod.hours().count() << CharT{':'};
ferencd@0:                     if (fds.tod.minutes() < minutes{10})
ferencd@0:                         os << CharT{'0'};
ferencd@0:                     os << fds.tod.minutes().count();
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'S':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{'E'})
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     if (!fds.has_tod)
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0:                     if (insert_negative)
ferencd@0:                     {
ferencd@0:                         os << '-';
ferencd@0:                         insert_negative = false;
ferencd@0:                     }
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     if (modified == CharT{})
ferencd@0: #endif
ferencd@0:                     {
ferencd@0:                         os << fds.tod.s_;
ferencd@0:                     }
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     else if (modified == CharT{'O'})
ferencd@0:                     {
ferencd@0:                         const CharT f[] = {'%', modified, *fmt};
ferencd@0:                         tm.tm_sec = static_cast<int>(fds.tod.s_.seconds().count());
ferencd@0:                         facet.put(os, os, os.fill(), &tm, std::begin(f), std::end(f));
ferencd@0:                     }
ferencd@0: #endif
ferencd@0:                 }
ferencd@0:                 modified = CharT{};
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 't':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{})
ferencd@0:                     os << CharT{'\t'};
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'T':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{})
ferencd@0:                 {
ferencd@0:                     if (!fds.has_tod)
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0:                     os << fds.tod;
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'u':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{'E'})
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     auto wd = extract_weekday(os, fds);
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     if (modified == CharT{})
ferencd@0: #endif
ferencd@0:                     {
ferencd@0:                         os << (wd != 0 ? wd : 7u);
ferencd@0:                     }
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     else if (modified == CharT{'O'})
ferencd@0:                     {
ferencd@0:                         const CharT f[] = {'%', modified, *fmt};
ferencd@0:                         tm.tm_wday = static_cast<int>(wd);
ferencd@0:                         facet.put(os, os, os.fill(), &tm, std::begin(f), std::end(f));
ferencd@0:                     }
ferencd@0: #endif
ferencd@0:                 }
ferencd@0:                 modified = CharT{};
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'U':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{'E'})
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     auto const& ymd = fds.ymd;
ferencd@0:                     if (!ymd.ok())
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0:                     auto ld = local_days(ymd);
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     if (modified == CharT{})
ferencd@0: #endif
ferencd@0:                     {
ferencd@0:                         auto st = local_days(Sunday[1]/January/ymd.year());
ferencd@0:                         if (ld < st)
ferencd@0:                             os << CharT{'0'} << CharT{'0'};
ferencd@0:                         else
ferencd@0:                         {
ferencd@0:                             auto wn = duration_cast<weeks>(ld - st).count() + 1;
ferencd@0:                             if (wn < 10)
ferencd@0:                                 os << CharT{'0'};
ferencd@0:                             os << wn;
ferencd@0:                         }
ferencd@0:                    }
ferencd@0:  #if !ONLY_C_LOCALE
ferencd@0:                     else if (modified == CharT{'O'})
ferencd@0:                     {
ferencd@0:                         const CharT f[] = {'%', modified, *fmt};
ferencd@0:                         tm.tm_year = static_cast<int>(ymd.year()) - 1900;
ferencd@0:                         tm.tm_wday = static_cast<int>(extract_weekday(os, fds));
ferencd@0:                         if (os.fail())
ferencd@0:                             return os;
ferencd@0:                         tm.tm_yday = static_cast<int>((ld - local_days(ymd.year()/1/1)).count());
ferencd@0:                         facet.put(os, os, os.fill(), &tm, std::begin(f), std::end(f));
ferencd@0:                     }
ferencd@0: #endif
ferencd@0:                 }
ferencd@0:                 modified = CharT{};
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'V':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{'E'})
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     if (!fds.ymd.ok())
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0:                     auto ld = local_days(fds.ymd);
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     if (modified == CharT{})
ferencd@0: #endif
ferencd@0:                     {
ferencd@0:                         auto y = year_month_day{ld + days{3}}.year();
ferencd@0:                         auto st = local_days((y-years{1})/12/Thursday[last]) +
ferencd@0:                                   (Monday-Thursday);
ferencd@0:                         if (ld < st)
ferencd@0:                         {
ferencd@0:                             --y;
ferencd@0:                             st = local_days((y - years{1})/12/Thursday[last]) +
ferencd@0:                                  (Monday-Thursday);
ferencd@0:                         }
ferencd@0:                         auto wn = duration_cast<weeks>(ld - st).count() + 1;
ferencd@0:                         if (wn < 10)
ferencd@0:                             os << CharT{'0'};
ferencd@0:                         os << wn;
ferencd@0:                     }
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     else if (modified == CharT{'O'})
ferencd@0:                     {
ferencd@0:                         const CharT f[] = {'%', modified, *fmt};
ferencd@0:                         auto const& ymd = fds.ymd;
ferencd@0:                         tm.tm_year = static_cast<int>(ymd.year()) - 1900;
ferencd@0:                         tm.tm_wday = static_cast<int>(extract_weekday(os, fds));
ferencd@0:                         if (os.fail())
ferencd@0:                             return os;
ferencd@0:                         tm.tm_yday = static_cast<int>((ld - local_days(ymd.year()/1/1)).count());
ferencd@0:                         facet.put(os, os, os.fill(), &tm, std::begin(f), std::end(f));
ferencd@0:                     }
ferencd@0: #endif
ferencd@0:                 }
ferencd@0:                 modified = CharT{};
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'w':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 auto wd = extract_weekday(os, fds);
ferencd@0:                 if (os.fail())
ferencd@0:                     return os;
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                 if (modified == CharT{})
ferencd@0: #else
ferencd@0:                 if (modified != CharT{'E'})
ferencd@0: #endif
ferencd@0:                 {
ferencd@0:                     os << wd;
ferencd@0:                 }
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                 else if (modified == CharT{'O'})
ferencd@0:                 {
ferencd@0:                     const CharT f[] = {'%', modified, *fmt};
ferencd@0:                     tm.tm_wday = static_cast<int>(wd);
ferencd@0:                     facet.put(os, os, os.fill(), &tm, std::begin(f), std::end(f));
ferencd@0:                 }
ferencd@0: #endif
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                 }
ferencd@0:                 modified = CharT{};
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'W':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{'E'})
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     auto const& ymd = fds.ymd;
ferencd@0:                     if (!ymd.ok())
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0:                     auto ld = local_days(ymd);
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     if (modified == CharT{})
ferencd@0: #endif
ferencd@0:                     {
ferencd@0:                         auto st = local_days(Monday[1]/January/ymd.year());
ferencd@0:                         if (ld < st)
ferencd@0:                             os << CharT{'0'} << CharT{'0'};
ferencd@0:                         else
ferencd@0:                         {
ferencd@0:                             auto wn = duration_cast<weeks>(ld - st).count() + 1;
ferencd@0:                             if (wn < 10)
ferencd@0:                                 os << CharT{'0'};
ferencd@0:                             os << wn;
ferencd@0:                         }
ferencd@0:                     }
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     else if (modified == CharT{'O'})
ferencd@0:                     {
ferencd@0:                         const CharT f[] = {'%', modified, *fmt};
ferencd@0:                         tm.tm_year = static_cast<int>(ymd.year()) - 1900;
ferencd@0:                         tm.tm_wday = static_cast<int>(extract_weekday(os, fds));
ferencd@0:                         if (os.fail())
ferencd@0:                             return os;
ferencd@0:                         tm.tm_yday = static_cast<int>((ld - local_days(ymd.year()/1/1)).count());
ferencd@0:                         facet.put(os, os, os.fill(), &tm, std::begin(f), std::end(f));
ferencd@0:                     }
ferencd@0: #endif
ferencd@0:                 }
ferencd@0:                 modified = CharT{};
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'X':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{'O'})
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     if (!fds.has_tod)
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     tm = std::tm{};
ferencd@0:                     tm.tm_sec = static_cast<int>(fds.tod.seconds().count());
ferencd@0:                     tm.tm_min = static_cast<int>(fds.tod.minutes().count());
ferencd@0:                     tm.tm_hour = static_cast<int>(fds.tod.hours().count());
ferencd@0:                     CharT f[3] = {'%'};
ferencd@0:                     auto fe = std::begin(f) + 1;
ferencd@0:                     if (modified == CharT{'E'})
ferencd@0:                         *fe++ = modified;
ferencd@0:                     *fe++ = *fmt;
ferencd@0:                     facet.put(os, os, os.fill(), &tm, std::begin(f), fe);
ferencd@0: #else
ferencd@0:                     os << fds.tod;
ferencd@0: #endif
ferencd@0:                 }
ferencd@0:                 command = nullptr;
ferencd@0:                 modified = CharT{};
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'y':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (!fds.ymd.year().ok())
ferencd@0:                     os.setstate(std::ios::failbit);
ferencd@0:                 auto y = static_cast<int>(fds.ymd.year());
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                 if (modified == CharT{})
ferencd@0:                 {
ferencd@0: #endif
ferencd@0:                     y = std::abs(y) % 100;
ferencd@0:                     if (y < 10)
ferencd@0:                         os << CharT{'0'};
ferencd@0:                     os << y;
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     const CharT f[] = {'%', modified, *fmt};
ferencd@0:                     tm.tm_year = y - 1900;
ferencd@0:                     facet.put(os, os, os.fill(), &tm, std::begin(f), std::end(f));
ferencd@0:                 }
ferencd@0: #endif
ferencd@0:                 modified = CharT{};
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'Y':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{'O'})
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     if (!fds.ymd.year().ok())
ferencd@0:                         os.setstate(std::ios::failbit);
ferencd@0:                     auto y = fds.ymd.year();
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     if (modified == CharT{})
ferencd@0: #endif
ferencd@0:                     {
ferencd@0:                         os << y;
ferencd@0:                     }
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     else if (modified == CharT{'E'})
ferencd@0:                     {
ferencd@0:                         const CharT f[] = {'%', modified, *fmt};
ferencd@0:                         tm.tm_year = static_cast<int>(y) - 1900;
ferencd@0:                         facet.put(os, os, os.fill(), &tm, std::begin(f), std::end(f));
ferencd@0:                     }
ferencd@0: #endif
ferencd@0:                 }
ferencd@0:                 modified = CharT{};
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'z':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (offset_sec == nullptr)
ferencd@0:                 {
ferencd@0:                     // Can not format %z with unknown offset
ferencd@0:                     os.setstate(ios::failbit);
ferencd@0:                     return os;
ferencd@0:                 }
ferencd@0:                 auto m = duration_cast<minutes>(*offset_sec);
ferencd@0:                 auto neg = m < minutes{0};
ferencd@0:                 m = date::abs(m);
ferencd@0:                 auto h = duration_cast<hours>(m);
ferencd@0:                 m -= h;
ferencd@0:                 if (neg)
ferencd@0:                     os << CharT{'-'};
ferencd@0:                 else
ferencd@0:                     os << CharT{'+'};
ferencd@0:                 if (h < hours{10})
ferencd@0:                     os << CharT{'0'};
ferencd@0:                 os << h.count();
ferencd@0:                 if (modified != CharT{})
ferencd@0:                     os << CharT{':'};
ferencd@0:                 if (m < minutes{10})
ferencd@0:                     os << CharT{'0'};
ferencd@0:                 os << m.count();
ferencd@0:                 command = nullptr;
ferencd@0:                 modified = CharT{};
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'Z':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{})
ferencd@0:                 {
ferencd@0:                     if (abbrev == nullptr)
ferencd@0:                     {
ferencd@0:                         // Can not format %Z with unknown time_zone
ferencd@0:                         os.setstate(ios::failbit);
ferencd@0:                         return os;
ferencd@0:                     }
ferencd@0:                     for (auto c : *abbrev)
ferencd@0:                         os << CharT(c);
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case 'E':
ferencd@0:         case 'O':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{})
ferencd@0:                 {
ferencd@0:                     modified = *fmt;
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     os << CharT{'%'} << modified << *fmt;
ferencd@0:                     command = nullptr;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 os << *fmt;
ferencd@0:             break;
ferencd@0:         case '%':
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 if (modified == CharT{})
ferencd@0:                 {
ferencd@0:                     os << CharT{'%'};
ferencd@0:                     command = nullptr;
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                 {
ferencd@0:                     os << CharT{'%'} << modified << CharT{'%'};
ferencd@0:                     command = nullptr;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:             }
ferencd@0:             else
ferencd@0:                 command = fmt;
ferencd@0:             break;
ferencd@0:         default:
ferencd@0:             if (command)
ferencd@0:             {
ferencd@0:                 os << CharT{'%'};
ferencd@0:                 command = nullptr;
ferencd@0:             }
ferencd@0:             if (modified != CharT{})
ferencd@0:             {
ferencd@0:                 os << modified;
ferencd@0:                 modified = CharT{};
ferencd@0:             }
ferencd@0:             os << *fmt;
ferencd@0:             break;
ferencd@0:         }
ferencd@0:     }
ferencd@0:     if (command)
ferencd@0:         os << CharT{'%'};
ferencd@0:     if (modified != CharT{})
ferencd@0:         os << modified;
ferencd@0:     return os;
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt, const year& y)
ferencd@0: {
ferencd@0:     using CT = std::chrono::seconds;
ferencd@0:     fields<CT> fds{y/0/0};
ferencd@0:     return to_stream(os, fmt, fds);
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt, const month& m)
ferencd@0: {
ferencd@0:     using CT = std::chrono::seconds;
ferencd@0:     fields<CT> fds{m/0/nanyear};
ferencd@0:     return to_stream(os, fmt, fds);
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt, const day& d)
ferencd@0: {
ferencd@0:     using CT = std::chrono::seconds;
ferencd@0:     fields<CT> fds{d/0/nanyear};
ferencd@0:     return to_stream(os, fmt, fds);
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt, const weekday& wd)
ferencd@0: {
ferencd@0:     using CT = std::chrono::seconds;
ferencd@0:     fields<CT> fds{wd};
ferencd@0:     return to_stream(os, fmt, fds);
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt, const year_month& ym)
ferencd@0: {
ferencd@0:     using CT = std::chrono::seconds;
ferencd@0:     fields<CT> fds{ym/0};
ferencd@0:     return to_stream(os, fmt, fds);
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt, const month_day& md)
ferencd@0: {
ferencd@0:     using CT = std::chrono::seconds;
ferencd@0:     fields<CT> fds{md/nanyear};
ferencd@0:     return to_stream(os, fmt, fds);
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
ferencd@0:           const year_month_day& ymd)
ferencd@0: {
ferencd@0:     using CT = std::chrono::seconds;
ferencd@0:     fields<CT> fds{ymd};
ferencd@0:     return to_stream(os, fmt, fds);
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Rep, class Period>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
ferencd@0:           const std::chrono::duration<Rep, Period>& d)
ferencd@0: {
ferencd@0:     using Duration = std::chrono::duration<Rep, Period>;
ferencd@0:     using CT = typename std::common_type<Duration, std::chrono::seconds>::type;
ferencd@0:     fields<CT> fds{hh_mm_ss<CT>{d}};
ferencd@0:     return to_stream(os, fmt, fds);
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Duration>
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
ferencd@0:           const local_time<Duration>& tp, const std::string* abbrev = nullptr,
ferencd@0:           const std::chrono::seconds* offset_sec = nullptr)
ferencd@0: {
ferencd@0:     using CT = typename std::common_type<Duration, std::chrono::seconds>::type;
ferencd@0:     auto ld = floor<days>(tp);
ferencd@0:     fields<CT> fds{year_month_day{ld}, hh_mm_ss<CT>{tp-local_seconds{ld}}};
ferencd@0:     return to_stream(os, fmt, fds, abbrev, offset_sec);
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Duration>
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: to_stream(std::basic_ostream<CharT, Traits>& os, const CharT* fmt,
ferencd@0:           const sys_time<Duration>& tp)
ferencd@0: {
ferencd@0:     using std::chrono::seconds;
ferencd@0:     using CT = typename std::common_type<Duration, seconds>::type;
ferencd@0:     const std::string abbrev("UTC");
ferencd@0:     CONSTDATA seconds offset{0};
ferencd@0:     auto sd = floor<days>(tp);
ferencd@0:     fields<CT> fds{year_month_day{sd}, hh_mm_ss<CT>{tp-sys_seconds{sd}}};
ferencd@0:     return to_stream(os, fmt, fds, &abbrev, &offset);
ferencd@0: }
ferencd@0: 
ferencd@0: // format
ferencd@0: 
ferencd@0: template <class CharT, class Streamable>
ferencd@0: auto
ferencd@0: format(const std::locale& loc, const CharT* fmt, const Streamable& tp)
ferencd@0:     -> decltype(to_stream(std::declval<std::basic_ostream<CharT>&>(), fmt, tp),
ferencd@0:                 std::basic_string<CharT>{})
ferencd@0: {
ferencd@0:     std::basic_ostringstream<CharT> os;
ferencd@0:     os.exceptions(std::ios::failbit | std::ios::badbit);
ferencd@0:     os.imbue(loc);
ferencd@0:     to_stream(os, fmt, tp);
ferencd@0:     return os.str();
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Streamable>
ferencd@0: auto
ferencd@0: format(const CharT* fmt, const Streamable& tp)
ferencd@0:     -> decltype(to_stream(std::declval<std::basic_ostream<CharT>&>(), fmt, tp),
ferencd@0:                 std::basic_string<CharT>{})
ferencd@0: {
ferencd@0:     std::basic_ostringstream<CharT> os;
ferencd@0:     os.exceptions(std::ios::failbit | std::ios::badbit);
ferencd@0:     to_stream(os, fmt, tp);
ferencd@0:     return os.str();
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Alloc, class Streamable>
ferencd@0: auto
ferencd@0: format(const std::locale& loc, const std::basic_string<CharT, Traits, Alloc>& fmt,
ferencd@0:        const Streamable& tp)
ferencd@0:     -> decltype(to_stream(std::declval<std::basic_ostream<CharT, Traits>&>(), fmt.c_str(), tp),
ferencd@0:                 std::basic_string<CharT, Traits, Alloc>{})
ferencd@0: {
ferencd@0:     std::basic_ostringstream<CharT, Traits, Alloc> os;
ferencd@0:     os.exceptions(std::ios::failbit | std::ios::badbit);
ferencd@0:     os.imbue(loc);
ferencd@0:     to_stream(os, fmt.c_str(), tp);
ferencd@0:     return os.str();
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Alloc, class Streamable>
ferencd@0: auto
ferencd@0: format(const std::basic_string<CharT, Traits, Alloc>& fmt, const Streamable& tp)
ferencd@0:     -> decltype(to_stream(std::declval<std::basic_ostream<CharT, Traits>&>(), fmt.c_str(), tp),
ferencd@0:                 std::basic_string<CharT, Traits, Alloc>{})
ferencd@0: {
ferencd@0:     std::basic_ostringstream<CharT, Traits, Alloc> os;
ferencd@0:     os.exceptions(std::ios::failbit | std::ios::badbit);
ferencd@0:     to_stream(os, fmt.c_str(), tp);
ferencd@0:     return os.str();
ferencd@0: }
ferencd@0: 
ferencd@0: // parse
ferencd@0: 
ferencd@0: namespace detail
ferencd@0: {
ferencd@0: 
ferencd@0: template <class CharT, class Traits>
ferencd@0: bool
ferencd@0: read_char(std::basic_istream<CharT, Traits>& is, CharT fmt, std::ios::iostate& err)
ferencd@0: {
ferencd@0:     auto ic = is.get();
ferencd@0:     if (Traits::eq_int_type(ic, Traits::eof()) ||
ferencd@0:        !Traits::eq(Traits::to_char_type(ic), fmt))
ferencd@0:     {
ferencd@0:         err |= std::ios::failbit;
ferencd@0:         is.setstate(std::ios::failbit);
ferencd@0:         return false;
ferencd@0:     }
ferencd@0:     return true;
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits>
ferencd@0: unsigned
ferencd@0: read_unsigned(std::basic_istream<CharT, Traits>& is, unsigned m = 1, unsigned M = 10)
ferencd@0: {
ferencd@0:     unsigned x = 0;
ferencd@0:     unsigned count = 0;
ferencd@0:     while (true)
ferencd@0:     {
ferencd@0:         auto ic = is.peek();
ferencd@0:         if (Traits::eq_int_type(ic, Traits::eof()))
ferencd@0:             break;
ferencd@0:         auto c = static_cast<char>(Traits::to_char_type(ic));
ferencd@0:         if (!('0' <= c && c <= '9'))
ferencd@0:             break;
ferencd@0:         (void)is.get();
ferencd@0:         ++count;
ferencd@0:         x = 10*x + static_cast<unsigned>(c - '0');
ferencd@0:         if (count == M)
ferencd@0:             break;
ferencd@0:     }
ferencd@0:     if (count < m)
ferencd@0:         is.setstate(std::ios::failbit);
ferencd@0:     return x;
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits>
ferencd@0: int
ferencd@0: read_signed(std::basic_istream<CharT, Traits>& is, unsigned m = 1, unsigned M = 10)
ferencd@0: {
ferencd@0:     auto ic = is.peek();
ferencd@0:     if (!Traits::eq_int_type(ic, Traits::eof()))
ferencd@0:     {
ferencd@0:         auto c = static_cast<char>(Traits::to_char_type(ic));
ferencd@0:         if (('0' <= c && c <= '9') || c == '-' || c == '+')
ferencd@0:         {
ferencd@0:             if (c == '-' || c == '+')
ferencd@0:                 (void)is.get();
ferencd@0:             auto x = static_cast<int>(read_unsigned(is, std::max(m, 1u), M));
ferencd@0:             if (!is.fail())
ferencd@0:             {
ferencd@0:                 if (c == '-')
ferencd@0:                     x = -x;
ferencd@0:                 return x;
ferencd@0:             }
ferencd@0:         }
ferencd@0:     }
ferencd@0:     if (m > 0)
ferencd@0:         is.setstate(std::ios::failbit);
ferencd@0:     return 0;
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits>
ferencd@0: long double
ferencd@0: read_long_double(std::basic_istream<CharT, Traits>& is, unsigned m = 1, unsigned M = 10)
ferencd@0: {
ferencd@0:     unsigned count = 0;
ferencd@0:     auto decimal_point = Traits::to_int_type(
ferencd@0:         std::use_facet<std::numpunct<CharT>>(is.getloc()).decimal_point());
ferencd@0:     std::string buf;
ferencd@0:     while (true)
ferencd@0:     {
ferencd@0:         auto ic = is.peek();
ferencd@0:         if (Traits::eq_int_type(ic, Traits::eof()))
ferencd@0:             break;
ferencd@0:         if (Traits::eq_int_type(ic, decimal_point))
ferencd@0:         {
ferencd@0:             buf += '.';
ferencd@0:             decimal_point = Traits::eof();
ferencd@0:             is.get();
ferencd@0:         }
ferencd@0:         else
ferencd@0:         {
ferencd@0:             auto c = static_cast<char>(Traits::to_char_type(ic));
ferencd@0:             if (!('0' <= c && c <= '9'))
ferencd@0:                 break;
ferencd@0:             buf += c;
ferencd@0:             (void)is.get();
ferencd@0:         }
ferencd@0:         if (++count == M)
ferencd@0:             break;
ferencd@0:     }
ferencd@0:     if (count < m)
ferencd@0:     {
ferencd@0:         is.setstate(std::ios::failbit);
ferencd@0:         return 0;
ferencd@0:     }
ferencd@0:     return std::stold(buf);
ferencd@0: }
ferencd@0: 
ferencd@0: struct rs
ferencd@0: {
ferencd@0:     int& i;
ferencd@0:     unsigned m;
ferencd@0:     unsigned M;
ferencd@0: };
ferencd@0: 
ferencd@0: struct ru
ferencd@0: {
ferencd@0:     int& i;
ferencd@0:     unsigned m;
ferencd@0:     unsigned M;
ferencd@0: };
ferencd@0: 
ferencd@0: struct rld
ferencd@0: {
ferencd@0:     long double& i;
ferencd@0:     unsigned m;
ferencd@0:     unsigned M;
ferencd@0: };
ferencd@0: 
ferencd@0: template <class CharT, class Traits>
ferencd@0: void
ferencd@0: read(std::basic_istream<CharT, Traits>&)
ferencd@0: {
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class ...Args>
ferencd@0: void
ferencd@0: read(std::basic_istream<CharT, Traits>& is, CharT a0, Args&& ...args);
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class ...Args>
ferencd@0: void
ferencd@0: read(std::basic_istream<CharT, Traits>& is, rs a0, Args&& ...args);
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class ...Args>
ferencd@0: void
ferencd@0: read(std::basic_istream<CharT, Traits>& is, ru a0, Args&& ...args);
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class ...Args>
ferencd@0: void
ferencd@0: read(std::basic_istream<CharT, Traits>& is, int a0, Args&& ...args);
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class ...Args>
ferencd@0: void
ferencd@0: read(std::basic_istream<CharT, Traits>& is, rld a0, Args&& ...args);
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class ...Args>
ferencd@0: void
ferencd@0: read(std::basic_istream<CharT, Traits>& is, CharT a0, Args&& ...args)
ferencd@0: {
ferencd@0:     // No-op if a0 == CharT{}
ferencd@0:     if (a0 != CharT{})
ferencd@0:     {
ferencd@0:         auto ic = is.peek();
ferencd@0:         if (Traits::eq_int_type(ic, Traits::eof()))
ferencd@0:         {
ferencd@0:             is.setstate(std::ios::failbit | std::ios::eofbit);
ferencd@0:             return;
ferencd@0:         }
ferencd@0:         if (!Traits::eq(Traits::to_char_type(ic), a0))
ferencd@0:         {
ferencd@0:             is.setstate(std::ios::failbit);
ferencd@0:             return;
ferencd@0:         }
ferencd@0:         (void)is.get();
ferencd@0:     }
ferencd@0:     read(is, std::forward<Args>(args)...);
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class ...Args>
ferencd@0: void
ferencd@0: read(std::basic_istream<CharT, Traits>& is, rs a0, Args&& ...args)
ferencd@0: {
ferencd@0:     auto x = read_signed(is, a0.m, a0.M);
ferencd@0:     if (is.fail())
ferencd@0:         return;
ferencd@0:     a0.i = x;
ferencd@0:     read(is, std::forward<Args>(args)...);
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class ...Args>
ferencd@0: void
ferencd@0: read(std::basic_istream<CharT, Traits>& is, ru a0, Args&& ...args)
ferencd@0: {
ferencd@0:     auto x = read_unsigned(is, a0.m, a0.M);
ferencd@0:     if (is.fail())
ferencd@0:         return;
ferencd@0:     a0.i = static_cast<int>(x);
ferencd@0:     read(is, std::forward<Args>(args)...);
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class ...Args>
ferencd@0: void
ferencd@0: read(std::basic_istream<CharT, Traits>& is, int a0, Args&& ...args)
ferencd@0: {
ferencd@0:     if (a0 != -1)
ferencd@0:     {
ferencd@0:         auto u = static_cast<unsigned>(a0);
ferencd@0:         CharT buf[std::numeric_limits<unsigned>::digits10+2u] = {};
ferencd@0:         auto e = buf;
ferencd@0:         do
ferencd@0:         {
ferencd@0:             *e++ = static_cast<CharT>(CharT(u % 10) + CharT{'0'});
ferencd@0:             u /= 10;
ferencd@0:         } while (u > 0);
ferencd@0:         std::reverse(buf, e);
ferencd@0:         for (auto p = buf; p != e && is.rdstate() == std::ios::goodbit; ++p)
ferencd@0:             read(is, *p);
ferencd@0:     }
ferencd@0:     if (is.rdstate() == std::ios::goodbit)
ferencd@0:         read(is, std::forward<Args>(args)...);
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class ...Args>
ferencd@0: void
ferencd@0: read(std::basic_istream<CharT, Traits>& is, rld a0, Args&& ...args)
ferencd@0: {
ferencd@0:     auto x = read_long_double(is, a0.m, a0.M);
ferencd@0:     if (is.fail())
ferencd@0:         return;
ferencd@0:     a0.i = x;
ferencd@0:     read(is, std::forward<Args>(args)...);
ferencd@0: }
ferencd@0: 
ferencd@0: template <class T, class CharT, class Traits>
ferencd@0: inline
ferencd@0: void
ferencd@0: checked_set(T& value, T from, T not_a_value, std::basic_ios<CharT, Traits>& is)
ferencd@0: {
ferencd@0:     if (!is.fail())
ferencd@0:     {
ferencd@0:         if (value == not_a_value)
ferencd@0:             value = std::move(from);
ferencd@0:         else if (value != from)
ferencd@0:             is.setstate(std::ios::failbit);
ferencd@0:     }
ferencd@0: }
ferencd@0: 
ferencd@0: }  // namespace detail;
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Duration, class Alloc = std::allocator<CharT>>
ferencd@0: std::basic_istream<CharT, Traits>&
ferencd@0: from_stream(std::basic_istream<CharT, Traits>& is, const CharT* fmt,
ferencd@0:             fields<Duration>& fds, std::basic_string<CharT, Traits, Alloc>* abbrev,
ferencd@0:             std::chrono::minutes* offset)
ferencd@0: {
ferencd@0:     using std::numeric_limits;
ferencd@0:     using std::ios;
ferencd@0:     using std::chrono::duration;
ferencd@0:     using std::chrono::duration_cast;
ferencd@0:     using std::chrono::seconds;
ferencd@0:     using std::chrono::minutes;
ferencd@0:     using std::chrono::hours;
ferencd@0:     typename std::basic_istream<CharT, Traits>::sentry ok{is, true};
ferencd@0:     if (ok)
ferencd@0:     {
ferencd@0:         date::detail::save_istream<CharT, Traits> ss(is);
ferencd@0:         is.fill(' ');
ferencd@0:         is.flags(std::ios::skipws | std::ios::dec);
ferencd@0:         is.width(0);
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:         auto& f = std::use_facet<std::time_get<CharT>>(is.getloc());
ferencd@0:         std::tm tm{};
ferencd@0: #endif
ferencd@0:         const CharT* command = nullptr;
ferencd@0:         auto modified = CharT{};
ferencd@0:         auto width = -1;
ferencd@0: 
ferencd@0:         CONSTDATA int not_a_year = numeric_limits<int>::min();
ferencd@0:         CONSTDATA int not_a_2digit_year = 100;
ferencd@0:         CONSTDATA int not_a_century = not_a_year / 100;
ferencd@0:         CONSTDATA int not_a_month = 0;
ferencd@0:         CONSTDATA int not_a_day = 0;
ferencd@0:         CONSTDATA int not_a_hour = numeric_limits<int>::min();
ferencd@0:         CONSTDATA int not_a_hour_12_value = 0;
ferencd@0:         CONSTDATA int not_a_minute = not_a_hour;
ferencd@0:         CONSTDATA Duration not_a_second = Duration::min();
ferencd@0:         CONSTDATA int not_a_doy = -1;
ferencd@0:         CONSTDATA int not_a_weekday = 8;
ferencd@0:         CONSTDATA int not_a_week_num = 100;
ferencd@0:         CONSTDATA int not_a_ampm = -1;
ferencd@0:         CONSTDATA minutes not_a_offset = minutes::min();
ferencd@0: 
ferencd@0:         int Y = not_a_year;             // c, F, Y                   *
ferencd@0:         int y = not_a_2digit_year;      // D, x, y                   *
ferencd@0:         int g = not_a_2digit_year;      // g                         *
ferencd@0:         int G = not_a_year;             // G                         *
ferencd@0:         int C = not_a_century;          // C                         *
ferencd@0:         int m = not_a_month;            // b, B, h, m, c, D, F, x    *
ferencd@0:         int d = not_a_day;              // c, d, D, e, F, x          *
ferencd@0:         int j = not_a_doy;              // j                         *
ferencd@0:         int wd = not_a_weekday;         // a, A, u, w                *
ferencd@0:         int H = not_a_hour;             // c, H, R, T, X             *
ferencd@0:         int I = not_a_hour_12_value;    // I, r                      *
ferencd@0:         int p = not_a_ampm;             // p, r                      *
ferencd@0:         int M = not_a_minute;           // c, M, r, R, T, X          *
ferencd@0:         Duration s = not_a_second;      // c, r, S, T, X             *
ferencd@0:         int U = not_a_week_num;         // U                         *
ferencd@0:         int V = not_a_week_num;         // V                         *
ferencd@0:         int W = not_a_week_num;         // W                         *
ferencd@0:         std::basic_string<CharT, Traits, Alloc> temp_abbrev;  // Z   *
ferencd@0:         minutes temp_offset = not_a_offset;  // z                    *
ferencd@0: 
ferencd@0:         using detail::read;
ferencd@0:         using detail::rs;
ferencd@0:         using detail::ru;
ferencd@0:         using detail::rld;
ferencd@0:         using detail::checked_set;
ferencd@0:         for (; *fmt != CharT{} && !is.fail(); ++fmt)
ferencd@0:         {
ferencd@0:             switch (*fmt)
ferencd@0:             {
ferencd@0:             case 'a':
ferencd@0:             case 'A':
ferencd@0:             case 'u':
ferencd@0:             case 'w':  // wd:  a, A, u, w
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     int trial_wd = not_a_weekday;
ferencd@0:                     if (*fmt == 'a' || *fmt == 'A')
ferencd@0:                     {
ferencd@0:                         if (modified == CharT{})
ferencd@0:                         {
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                             ios::iostate err = ios::goodbit;
ferencd@0:                             f.get(is, nullptr, is, err, &tm, command, fmt+1);
ferencd@0:                             is.setstate(err);
ferencd@0:                             if (!is.fail())
ferencd@0:                                 trial_wd = tm.tm_wday;
ferencd@0: #else
ferencd@0:                             auto nm = detail::weekday_names();
ferencd@0:                             auto i = detail::scan_keyword(is, nm.first, nm.second) - nm.first;
ferencd@0:                             if (!is.fail())
ferencd@0:                                 trial_wd = i % 7;
ferencd@0: #endif
ferencd@0:                         }
ferencd@0:                         else
ferencd@0:                             read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     }
ferencd@0:                     else  // *fmt == 'u' || *fmt == 'w'
ferencd@0:                     {
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                         if (modified == CharT{})
ferencd@0: #else
ferencd@0:                         if (modified != CharT{'E'})
ferencd@0: #endif
ferencd@0:                         {
ferencd@0:                             read(is, ru{trial_wd, 1, width == -1 ?
ferencd@0:                                                       1u : static_cast<unsigned>(width)});
ferencd@0:                             if (!is.fail())
ferencd@0:                             {
ferencd@0:                                 if (*fmt == 'u')
ferencd@0:                                 {
ferencd@0:                                     if (!(1 <= trial_wd && trial_wd <= 7))
ferencd@0:                                     {
ferencd@0:                                         trial_wd = not_a_weekday;
ferencd@0:                                         is.setstate(ios::failbit);
ferencd@0:                                     }
ferencd@0:                                     else if (trial_wd == 7)
ferencd@0:                                         trial_wd = 0;
ferencd@0:                                 }
ferencd@0:                                 else  // *fmt == 'w'
ferencd@0:                                 {
ferencd@0:                                     if (!(0 <= trial_wd && trial_wd <= 6))
ferencd@0:                                     {
ferencd@0:                                         trial_wd = not_a_weekday;
ferencd@0:                                         is.setstate(ios::failbit);
ferencd@0:                                     }
ferencd@0:                                 }
ferencd@0:                             }
ferencd@0:                         }
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                         else if (modified == CharT{'O'})
ferencd@0:                         {
ferencd@0:                             ios::iostate err = ios::goodbit;
ferencd@0:                             f.get(is, nullptr, is, err, &tm, command, fmt+1);
ferencd@0:                             is.setstate(err);
ferencd@0:                             if (!is.fail())
ferencd@0:                                 trial_wd = tm.tm_wday;
ferencd@0:                         }
ferencd@0: #endif
ferencd@0:                         else
ferencd@0:                             read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     }
ferencd@0:                     if (trial_wd != not_a_weekday)
ferencd@0:                         checked_set(wd, trial_wd, not_a_weekday, is);
ferencd@0:                 }
ferencd@0:                 else  // !command
ferencd@0:                     read(is, *fmt);
ferencd@0:                 command = nullptr;
ferencd@0:                 width = -1;
ferencd@0:                 modified = CharT{};
ferencd@0:                 break;
ferencd@0:             case 'b':
ferencd@0:             case 'B':
ferencd@0:             case 'h':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (modified == CharT{})
ferencd@0:                     {
ferencd@0:                         int ttm = not_a_month;
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                         ios::iostate err = ios::goodbit;
ferencd@0:                         f.get(is, nullptr, is, err, &tm, command, fmt+1);
ferencd@0:                         if ((err & ios::failbit) == 0)
ferencd@0:                             ttm = tm.tm_mon + 1;
ferencd@0:                         is.setstate(err);
ferencd@0: #else
ferencd@0:                         auto nm = detail::month_names();
ferencd@0:                         auto i = detail::scan_keyword(is, nm.first, nm.second) - nm.first;
ferencd@0:                         if (!is.fail())
ferencd@0:                             ttm = i % 12 + 1;
ferencd@0: #endif
ferencd@0:                         checked_set(m, ttm, not_a_month, is);
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'c':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (modified != CharT{'O'})
ferencd@0:                     {
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                         ios::iostate err = ios::goodbit;
ferencd@0:                         f.get(is, nullptr, is, err, &tm, command, fmt+1);
ferencd@0:                         if ((err & ios::failbit) == 0)
ferencd@0:                         {
ferencd@0:                             checked_set(Y, tm.tm_year + 1900, not_a_year, is);
ferencd@0:                             checked_set(m, tm.tm_mon + 1, not_a_month, is);
ferencd@0:                             checked_set(d, tm.tm_mday, not_a_day, is);
ferencd@0:                             checked_set(H, tm.tm_hour, not_a_hour, is);
ferencd@0:                             checked_set(M, tm.tm_min, not_a_minute, is);
ferencd@0:                             checked_set(s, duration_cast<Duration>(seconds{tm.tm_sec}),
ferencd@0:                                         not_a_second, is);
ferencd@0:                         }
ferencd@0:                         is.setstate(err);
ferencd@0: #else
ferencd@0:                         // "%a %b %e %T %Y"
ferencd@0:                         auto nm = detail::weekday_names();
ferencd@0:                         auto i = detail::scan_keyword(is, nm.first, nm.second) - nm.first;
ferencd@0:                         checked_set(wd, static_cast<int>(i % 7), not_a_weekday, is);
ferencd@0:                         ws(is);
ferencd@0:                         nm = detail::month_names();
ferencd@0:                         i = detail::scan_keyword(is, nm.first, nm.second) - nm.first;
ferencd@0:                         checked_set(m, static_cast<int>(i % 12 + 1), not_a_month, is);
ferencd@0:                         ws(is);
ferencd@0:                         int td = not_a_day;
ferencd@0:                         read(is, rs{td, 1, 2});
ferencd@0:                         checked_set(d, td, not_a_day, is);
ferencd@0:                         ws(is);
ferencd@0:                         using dfs = detail::decimal_format_seconds<Duration>;
ferencd@0:                         CONSTDATA auto w = Duration::period::den == 1 ? 2 : 3 + dfs::width;
ferencd@0:                         int tH;
ferencd@0:                         int tM;
ferencd@0:                         long double S;
ferencd@0:                         read(is, ru{tH, 1, 2}, CharT{':'}, ru{tM, 1, 2},
ferencd@0:                                                CharT{':'}, rld{S, 1, w});
ferencd@0:                         checked_set(H, tH, not_a_hour, is);
ferencd@0:                         checked_set(M, tM, not_a_minute, is);
ferencd@0:                         checked_set(s, round<Duration>(duration<long double>{S}),
ferencd@0:                                     not_a_second, is);
ferencd@0:                         ws(is);
ferencd@0:                         int tY = not_a_year;
ferencd@0:                         read(is, rs{tY, 1, 4u});
ferencd@0:                         checked_set(Y, tY, not_a_year, is);
ferencd@0: #endif
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'x':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (modified != CharT{'O'})
ferencd@0:                     {
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                         ios::iostate err = ios::goodbit;
ferencd@0:                         f.get(is, nullptr, is, err, &tm, command, fmt+1);
ferencd@0:                         if ((err & ios::failbit) == 0)
ferencd@0:                         {
ferencd@0:                             checked_set(Y, tm.tm_year + 1900, not_a_year, is);
ferencd@0:                             checked_set(m, tm.tm_mon + 1, not_a_month, is);
ferencd@0:                             checked_set(d, tm.tm_mday, not_a_day, is);
ferencd@0:                         }
ferencd@0:                         is.setstate(err);
ferencd@0: #else
ferencd@0:                         // "%m/%d/%y"
ferencd@0:                         int ty = not_a_2digit_year;
ferencd@0:                         int tm = not_a_month;
ferencd@0:                         int td = not_a_day;
ferencd@0:                         read(is, ru{tm, 1, 2}, CharT{'/'}, ru{td, 1, 2}, CharT{'/'},
ferencd@0:                                  rs{ty, 1, 2});
ferencd@0:                         checked_set(y, ty, not_a_2digit_year, is);
ferencd@0:                         checked_set(m, tm, not_a_month, is);
ferencd@0:                         checked_set(d, td, not_a_day, is);
ferencd@0: #endif
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'X':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (modified != CharT{'O'})
ferencd@0:                     {
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                         ios::iostate err = ios::goodbit;
ferencd@0:                         f.get(is, nullptr, is, err, &tm, command, fmt+1);
ferencd@0:                         if ((err & ios::failbit) == 0)
ferencd@0:                         {
ferencd@0:                             checked_set(H, tm.tm_hour, not_a_hour, is);
ferencd@0:                             checked_set(M, tm.tm_min, not_a_minute, is);
ferencd@0:                             checked_set(s, duration_cast<Duration>(seconds{tm.tm_sec}),
ferencd@0:                                         not_a_second, is);
ferencd@0:                         }
ferencd@0:                         is.setstate(err);
ferencd@0: #else
ferencd@0:                         // "%T"
ferencd@0:                         using dfs = detail::decimal_format_seconds<Duration>;
ferencd@0:                         CONSTDATA auto w = Duration::period::den == 1 ? 2 : 3 + dfs::width;
ferencd@0:                         int tH = not_a_hour;
ferencd@0:                         int tM = not_a_minute;
ferencd@0:                         long double S;
ferencd@0:                         read(is, ru{tH, 1, 2}, CharT{':'}, ru{tM, 1, 2},
ferencd@0:                                                CharT{':'}, rld{S, 1, w});
ferencd@0:                         checked_set(H, tH, not_a_hour, is);
ferencd@0:                         checked_set(M, tM, not_a_minute, is);
ferencd@0:                         checked_set(s, round<Duration>(duration<long double>{S}),
ferencd@0:                                     not_a_second, is);
ferencd@0: #endif
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'C':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     int tC = not_a_century;
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     if (modified == CharT{})
ferencd@0:                     {
ferencd@0: #endif
ferencd@0:                         read(is, rs{tC, 1, width == -1 ? 2u : static_cast<unsigned>(width)});
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                     {
ferencd@0:                         ios::iostate err = ios::goodbit;
ferencd@0:                         f.get(is, nullptr, is, err, &tm, command, fmt+1);
ferencd@0:                         if ((err & ios::failbit) == 0)
ferencd@0:                         {
ferencd@0:                             auto tY = tm.tm_year + 1900;
ferencd@0:                             tC = (tY >= 0 ? tY : tY-99) / 100;
ferencd@0:                         }
ferencd@0:                         is.setstate(err);
ferencd@0:                     }
ferencd@0: #endif
ferencd@0:                     checked_set(C, tC, not_a_century, is);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'D':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (modified == CharT{})
ferencd@0:                     {
ferencd@0:                         int tn = not_a_month;
ferencd@0:                         int td = not_a_day;
ferencd@0:                         int ty = not_a_2digit_year;
ferencd@0:                         read(is, ru{tn, 1, 2}, CharT{'\0'}, CharT{'/'}, CharT{'\0'},
ferencd@0:                                  ru{td, 1, 2}, CharT{'\0'}, CharT{'/'}, CharT{'\0'},
ferencd@0:                                  rs{ty, 1, 2});
ferencd@0:                         checked_set(y, ty, not_a_2digit_year, is);
ferencd@0:                         checked_set(m, tn, not_a_month, is);
ferencd@0:                         checked_set(d, td, not_a_day, is);
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'F':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (modified == CharT{})
ferencd@0:                     {
ferencd@0:                         int tY = not_a_year;
ferencd@0:                         int tn = not_a_month;
ferencd@0:                         int td = not_a_day;
ferencd@0:                         read(is, rs{tY, 1, width == -1 ? 4u : static_cast<unsigned>(width)},
ferencd@0:                                  CharT{'-'}, ru{tn, 1, 2}, CharT{'-'}, ru{td, 1, 2});
ferencd@0:                         checked_set(Y, tY, not_a_year, is);
ferencd@0:                         checked_set(m, tn, not_a_month, is);
ferencd@0:                         checked_set(d, td, not_a_day, is);
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'd':
ferencd@0:             case 'e':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     if (modified == CharT{})
ferencd@0: #else
ferencd@0:                     if (modified != CharT{'E'})
ferencd@0: #endif
ferencd@0:                     {
ferencd@0:                         int td = not_a_day;
ferencd@0:                         read(is, rs{td, 1, width == -1 ? 2u : static_cast<unsigned>(width)});
ferencd@0:                         checked_set(d, td, not_a_day, is);
ferencd@0:                     }
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     else if (modified == CharT{'O'})
ferencd@0:                     {
ferencd@0:                         ios::iostate err = ios::goodbit;
ferencd@0:                         f.get(is, nullptr, is, err, &tm, command, fmt+1);
ferencd@0:                         command = nullptr;
ferencd@0:                         width = -1;
ferencd@0:                         modified = CharT{};
ferencd@0:                         if ((err & ios::failbit) == 0)
ferencd@0:                             checked_set(d, tm.tm_mday, not_a_day, is);
ferencd@0:                         is.setstate(err);
ferencd@0:                     }
ferencd@0: #endif
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'H':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     if (modified == CharT{})
ferencd@0: #else
ferencd@0:                     if (modified != CharT{'E'})
ferencd@0: #endif
ferencd@0:                     {
ferencd@0:                         int tH = not_a_hour;
ferencd@0:                         read(is, ru{tH, 1, width == -1 ? 2u : static_cast<unsigned>(width)});
ferencd@0:                         checked_set(H, tH, not_a_hour, is);
ferencd@0:                     }
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     else if (modified == CharT{'O'})
ferencd@0:                     {
ferencd@0:                         ios::iostate err = ios::goodbit;
ferencd@0:                         f.get(is, nullptr, is, err, &tm, command, fmt+1);
ferencd@0:                         if ((err & ios::failbit) == 0)
ferencd@0:                             checked_set(H, tm.tm_hour, not_a_hour, is);
ferencd@0:                         is.setstate(err);
ferencd@0:                     }
ferencd@0: #endif
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'I':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (modified == CharT{})
ferencd@0:                     {
ferencd@0:                         int tI = not_a_hour_12_value;
ferencd@0:                         // reads in an hour into I, but most be in [1, 12]
ferencd@0:                         read(is, rs{tI, 1, width == -1 ? 2u : static_cast<unsigned>(width)});
ferencd@0:                         if (!(1 <= tI && tI <= 12))
ferencd@0:                             is.setstate(ios::failbit);
ferencd@0:                         checked_set(I, tI, not_a_hour_12_value, is);
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                break;
ferencd@0:             case 'j':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (modified == CharT{})
ferencd@0:                     {
ferencd@0:                         int tj = not_a_doy;
ferencd@0:                         read(is, ru{tj, 1, width == -1 ? 3u : static_cast<unsigned>(width)});
ferencd@0:                         checked_set(j, tj, not_a_doy, is);
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'M':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     if (modified == CharT{})
ferencd@0: #else
ferencd@0:                     if (modified != CharT{'E'})
ferencd@0: #endif
ferencd@0:                     {
ferencd@0:                         int tM = not_a_minute;
ferencd@0:                         read(is, ru{tM, 1, width == -1 ? 2u : static_cast<unsigned>(width)});
ferencd@0:                         checked_set(M, tM, not_a_minute, is);
ferencd@0:                     }
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     else if (modified == CharT{'O'})
ferencd@0:                     {
ferencd@0:                         ios::iostate err = ios::goodbit;
ferencd@0:                         f.get(is, nullptr, is, err, &tm, command, fmt+1);
ferencd@0:                         if ((err & ios::failbit) == 0)
ferencd@0:                             checked_set(M, tm.tm_min, not_a_minute, is);
ferencd@0:                         is.setstate(err);
ferencd@0:                     }
ferencd@0: #endif
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'm':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     if (modified == CharT{})
ferencd@0: #else
ferencd@0:                     if (modified != CharT{'E'})
ferencd@0: #endif
ferencd@0:                     {
ferencd@0:                         int tn = not_a_month;
ferencd@0:                         read(is, rs{tn, 1, width == -1 ? 2u : static_cast<unsigned>(width)});
ferencd@0:                         checked_set(m, tn, not_a_month, is);
ferencd@0:                     }
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     else if (modified == CharT{'O'})
ferencd@0:                     {
ferencd@0:                         ios::iostate err = ios::goodbit;
ferencd@0:                         f.get(is, nullptr, is, err, &tm, command, fmt+1);
ferencd@0:                         if ((err & ios::failbit) == 0)
ferencd@0:                             checked_set(m, tm.tm_mon + 1, not_a_month, is);
ferencd@0:                         is.setstate(err);
ferencd@0:                     }
ferencd@0: #endif
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'n':
ferencd@0:             case 't':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (modified == CharT{})
ferencd@0:                     {
ferencd@0:                         // %n matches a single white space character
ferencd@0:                         // %t matches 0 or 1 white space characters
ferencd@0:                         auto ic = is.peek();
ferencd@0:                         if (Traits::eq_int_type(ic, Traits::eof()))
ferencd@0:                         {
ferencd@0:                             ios::iostate err = ios::eofbit;
ferencd@0:                             if (*fmt == 'n')
ferencd@0:                                 err |= ios::failbit;
ferencd@0:                             is.setstate(err);
ferencd@0:                             break;
ferencd@0:                         }
ferencd@0:                         if (isspace(ic))
ferencd@0:                         {
ferencd@0:                             (void)is.get();
ferencd@0:                         }
ferencd@0:                         else if (*fmt == 'n')
ferencd@0:                             is.setstate(ios::failbit);
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'p':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (modified == CharT{})
ferencd@0:                     {
ferencd@0:                         int tp = not_a_ampm;
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                         tm = std::tm{};
ferencd@0:                         tm.tm_hour = 1;
ferencd@0:                         ios::iostate err = ios::goodbit;
ferencd@0:                         f.get(is, nullptr, is, err, &tm, command, fmt+1);
ferencd@0:                         is.setstate(err);
ferencd@0:                         if (tm.tm_hour == 1)
ferencd@0:                             tp = 0;
ferencd@0:                         else if (tm.tm_hour == 13)
ferencd@0:                             tp = 1;
ferencd@0:                         else
ferencd@0:                             is.setstate(err);
ferencd@0: #else
ferencd@0:                         auto nm = detail::ampm_names();
ferencd@0:                         auto i = detail::scan_keyword(is, nm.first, nm.second) - nm.first;
ferencd@0:                         tp = i;
ferencd@0: #endif
ferencd@0:                         checked_set(p, tp, not_a_ampm, is);
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0: 
ferencd@0:                break;
ferencd@0:             case 'r':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (modified == CharT{})
ferencd@0:                     {
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                         ios::iostate err = ios::goodbit;
ferencd@0:                         f.get(is, nullptr, is, err, &tm, command, fmt+1);
ferencd@0:                         if ((err & ios::failbit) == 0)
ferencd@0:                         {
ferencd@0:                             checked_set(H, tm.tm_hour, not_a_hour, is);
ferencd@0:                             checked_set(M, tm.tm_min, not_a_hour, is);
ferencd@0:                             checked_set(s, duration_cast<Duration>(seconds{tm.tm_sec}),
ferencd@0:                                         not_a_second, is);
ferencd@0:                         }
ferencd@0:                         is.setstate(err);
ferencd@0: #else
ferencd@0:                         // "%I:%M:%S %p"
ferencd@0:                         using dfs = detail::decimal_format_seconds<Duration>;
ferencd@0:                         CONSTDATA auto w = Duration::period::den == 1 ? 2 : 3 + dfs::width;
ferencd@0:                         long double S;
ferencd@0:                         int tI = not_a_hour_12_value;
ferencd@0:                         int tM = not_a_minute;
ferencd@0:                         read(is, ru{tI, 1, 2}, CharT{':'}, ru{tM, 1, 2},
ferencd@0:                                                CharT{':'}, rld{S, 1, w});
ferencd@0:                         checked_set(I, tI, not_a_hour_12_value, is);
ferencd@0:                         checked_set(M, tM, not_a_minute, is);
ferencd@0:                         checked_set(s, round<Duration>(duration<long double>{S}),
ferencd@0:                                     not_a_second, is);
ferencd@0:                         ws(is);
ferencd@0:                         auto nm = detail::ampm_names();
ferencd@0:                         auto i = detail::scan_keyword(is, nm.first, nm.second) - nm.first;
ferencd@0:                         checked_set(p, static_cast<int>(i), not_a_ampm, is);
ferencd@0: #endif
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'R':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (modified == CharT{})
ferencd@0:                     {
ferencd@0:                         int tH = not_a_hour;
ferencd@0:                         int tM = not_a_minute;
ferencd@0:                         read(is, ru{tH, 1, 2}, CharT{'\0'}, CharT{':'}, CharT{'\0'},
ferencd@0:                                  ru{tM, 1, 2}, CharT{'\0'});
ferencd@0:                         checked_set(H, tH, not_a_hour, is);
ferencd@0:                         checked_set(M, tM, not_a_minute, is);
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'S':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:  #if !ONLY_C_LOCALE
ferencd@0:                    if (modified == CharT{})
ferencd@0: #else
ferencd@0:                    if (modified != CharT{'E'})
ferencd@0: #endif
ferencd@0:                     {
ferencd@0:                         using dfs = detail::decimal_format_seconds<Duration>;
ferencd@0:                         CONSTDATA auto w = Duration::period::den == 1 ? 2 : 3 + dfs::width;
ferencd@0:                         long double S;
ferencd@0:                         read(is, rld{S, 1, width == -1 ? w : static_cast<unsigned>(width)});
ferencd@0:                         checked_set(s, round<Duration>(duration<long double>{S}),
ferencd@0:                                     not_a_second, is);
ferencd@0:                     }
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     else if (modified == CharT{'O'})
ferencd@0:                     {
ferencd@0:                         ios::iostate err = ios::goodbit;
ferencd@0:                         f.get(is, nullptr, is, err, &tm, command, fmt+1);
ferencd@0:                         if ((err & ios::failbit) == 0)
ferencd@0:                             checked_set(s, duration_cast<Duration>(seconds{tm.tm_sec}),
ferencd@0:                                         not_a_second, is);
ferencd@0:                         is.setstate(err);
ferencd@0:                     }
ferencd@0: #endif
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'T':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (modified == CharT{})
ferencd@0:                     {
ferencd@0:                         using dfs = detail::decimal_format_seconds<Duration>;
ferencd@0:                         CONSTDATA auto w = Duration::period::den == 1 ? 2 : 3 + dfs::width;
ferencd@0:                         int tH = not_a_hour;
ferencd@0:                         int tM = not_a_minute;
ferencd@0:                         long double S;
ferencd@0:                         read(is, ru{tH, 1, 2}, CharT{':'}, ru{tM, 1, 2},
ferencd@0:                                                CharT{':'}, rld{S, 1, w});
ferencd@0:                         checked_set(H, tH, not_a_hour, is);
ferencd@0:                         checked_set(M, tM, not_a_minute, is);
ferencd@0:                         checked_set(s, round<Duration>(duration<long double>{S}),
ferencd@0:                                     not_a_second, is);
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'Y':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     if (modified == CharT{})
ferencd@0: #else
ferencd@0:                     if (modified != CharT{'O'})
ferencd@0: #endif
ferencd@0:                     {
ferencd@0:                         int tY = not_a_year;
ferencd@0:                         read(is, rs{tY, 1, width == -1 ? 4u : static_cast<unsigned>(width)});
ferencd@0:                         checked_set(Y, tY, not_a_year, is);
ferencd@0:                     }
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     else if (modified == CharT{'E'})
ferencd@0:                     {
ferencd@0:                         ios::iostate err = ios::goodbit;
ferencd@0:                         f.get(is, nullptr, is, err, &tm, command, fmt+1);
ferencd@0:                         if ((err & ios::failbit) == 0)
ferencd@0:                             checked_set(Y, tm.tm_year + 1900, not_a_year, is);
ferencd@0:                         is.setstate(err);
ferencd@0:                     }
ferencd@0: #endif
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'y':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     if (modified == CharT{})
ferencd@0: #endif
ferencd@0:                     {
ferencd@0:                         int ty = not_a_2digit_year;
ferencd@0:                         read(is, ru{ty, 1, width == -1 ? 2u : static_cast<unsigned>(width)});
ferencd@0:                         checked_set(y, ty, not_a_2digit_year, is);
ferencd@0:                     }
ferencd@0: #if !ONLY_C_LOCALE
ferencd@0:                     else
ferencd@0:                     {
ferencd@0:                         ios::iostate err = ios::goodbit;
ferencd@0:                         f.get(is, nullptr, is, err, &tm, command, fmt+1);
ferencd@0:                         if ((err & ios::failbit) == 0)
ferencd@0:                             checked_set(Y, tm.tm_year + 1900, not_a_year, is);
ferencd@0:                         is.setstate(err);
ferencd@0:                     }
ferencd@0: #endif
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'g':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (modified == CharT{})
ferencd@0:                     {
ferencd@0:                         int tg = not_a_2digit_year;
ferencd@0:                         read(is, ru{tg, 1, width == -1 ? 2u : static_cast<unsigned>(width)});
ferencd@0:                         checked_set(g, tg, not_a_2digit_year, is);
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'G':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (modified == CharT{})
ferencd@0:                     {
ferencd@0:                         int tG = not_a_year;
ferencd@0:                         read(is, rs{tG, 1, width == -1 ? 4u : static_cast<unsigned>(width)});
ferencd@0:                         checked_set(G, tG, not_a_year, is);
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'U':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (modified == CharT{})
ferencd@0:                     {
ferencd@0:                         int tU = not_a_week_num;
ferencd@0:                         read(is, ru{tU, 1, width == -1 ? 2u : static_cast<unsigned>(width)});
ferencd@0:                         checked_set(U, tU, not_a_week_num, is);
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'V':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (modified == CharT{})
ferencd@0:                     {
ferencd@0:                         int tV = not_a_week_num;
ferencd@0:                         read(is, ru{tV, 1, width == -1 ? 2u : static_cast<unsigned>(width)});
ferencd@0:                         checked_set(V, tV, not_a_week_num, is);
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'W':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (modified == CharT{})
ferencd@0:                     {
ferencd@0:                         int tW = not_a_week_num;
ferencd@0:                         read(is, ru{tW, 1, width == -1 ? 2u : static_cast<unsigned>(width)});
ferencd@0:                         checked_set(W, tW, not_a_week_num, is);
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'E':
ferencd@0:             case 'O':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (modified == CharT{})
ferencd@0:                     {
ferencd@0:                         modified = *fmt;
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                     {
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                         command = nullptr;
ferencd@0:                         width = -1;
ferencd@0:                         modified = CharT{};
ferencd@0:                     }
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case '%':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (modified == CharT{})
ferencd@0:                         read(is, *fmt);
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     command = fmt;
ferencd@0:                 break;
ferencd@0:             case 'z':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     int tH, tM;
ferencd@0:                     minutes toff = not_a_offset;
ferencd@0:                     bool neg = false;
ferencd@0:                     auto ic = is.peek();
ferencd@0:                     if (!Traits::eq_int_type(ic, Traits::eof()))
ferencd@0:                     {
ferencd@0:                         auto c = static_cast<char>(Traits::to_char_type(ic));
ferencd@0:                         if (c == '-')
ferencd@0:                             neg = true;
ferencd@0:                     }
ferencd@0:                     if (modified == CharT{})
ferencd@0:                     {
ferencd@0:                         read(is, rs{tH, 2, 2});
ferencd@0:                         if (!is.fail())
ferencd@0:                             toff = hours{std::abs(tH)};
ferencd@0:                         if (is.good())
ferencd@0:                         {
ferencd@0:                             ic = is.peek();
ferencd@0:                             if (!Traits::eq_int_type(ic, Traits::eof()))
ferencd@0:                             {
ferencd@0:                                 auto c = static_cast<char>(Traits::to_char_type(ic));
ferencd@0:                                 if ('0' <= c && c <= '9')
ferencd@0:                                 {
ferencd@0:                                     read(is, ru{tM, 2, 2});
ferencd@0:                                     if (!is.fail())
ferencd@0:                                         toff += minutes{tM};
ferencd@0:                                 }
ferencd@0:                             }
ferencd@0:                         }
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                     {
ferencd@0:                         read(is, rs{tH, 1, 2});
ferencd@0:                         if (!is.fail())
ferencd@0:                             toff = hours{std::abs(tH)};
ferencd@0:                         if (is.good())
ferencd@0:                         {
ferencd@0:                             ic = is.peek();
ferencd@0:                             if (!Traits::eq_int_type(ic, Traits::eof()))
ferencd@0:                             {
ferencd@0:                                 auto c = static_cast<char>(Traits::to_char_type(ic));
ferencd@0:                                 if (c == ':')
ferencd@0:                                 {
ferencd@0:                                     (void)is.get();
ferencd@0:                                     read(is, ru{tM, 2, 2});
ferencd@0:                                     if (!is.fail())
ferencd@0:                                         toff += minutes{tM};
ferencd@0:                                 }
ferencd@0:                             }
ferencd@0:                         }
ferencd@0:                     }
ferencd@0:                     if (neg)
ferencd@0:                         toff = -toff;
ferencd@0:                     checked_set(temp_offset, toff, not_a_offset, is);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             case 'Z':
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (modified == CharT{})
ferencd@0:                     {
ferencd@0:                         std::basic_string<CharT, Traits, Alloc> buf;
ferencd@0:                         while (is.rdstate() == std::ios::goodbit)
ferencd@0:                         {
ferencd@0:                             auto i = is.rdbuf()->sgetc();
ferencd@0:                             if (Traits::eq_int_type(i, Traits::eof()))
ferencd@0:                             {
ferencd@0:                                 is.setstate(ios::eofbit);
ferencd@0:                                 break;
ferencd@0:                             }
ferencd@0:                             auto wc = Traits::to_char_type(i);
ferencd@0:                             auto c = static_cast<char>(wc);
ferencd@0:                             // is c a valid time zone name or abbreviation character?
ferencd@0:                             if (!(CharT{1} < wc && wc < CharT{127}) || !(isalnum(c) ||
ferencd@0:                                     c == '_' || c == '/' || c == '-' || c == '+'))
ferencd@0:                                 break;
ferencd@0:                             buf.push_back(c);
ferencd@0:                             is.rdbuf()->sbumpc();
ferencd@0:                         }
ferencd@0:                         if (buf.empty())
ferencd@0:                             is.setstate(ios::failbit);
ferencd@0:                         checked_set(temp_abbrev, buf, {}, is);
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                         read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                     command = nullptr;
ferencd@0:                     width = -1;
ferencd@0:                     modified = CharT{};
ferencd@0:                 }
ferencd@0:                 else
ferencd@0:                     read(is, *fmt);
ferencd@0:                 break;
ferencd@0:             default:
ferencd@0:                 if (command)
ferencd@0:                 {
ferencd@0:                     if (width == -1 && modified == CharT{} && '0' <= *fmt && *fmt <= '9')
ferencd@0:                     {
ferencd@0:                         width = static_cast<char>(*fmt) - '0';
ferencd@0:                         while ('0' <= fmt[1] && fmt[1] <= '9')
ferencd@0:                             width = 10*width + static_cast<char>(*++fmt) - '0';
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                     {
ferencd@0:                         if (modified == CharT{})
ferencd@0:                             read(is, CharT{'%'}, width, *fmt);
ferencd@0:                         else
ferencd@0:                             read(is, CharT{'%'}, width, modified, *fmt);
ferencd@0:                         command = nullptr;
ferencd@0:                         width = -1;
ferencd@0:                         modified = CharT{};
ferencd@0:                     }
ferencd@0:                 }
ferencd@0:                 else  // !command
ferencd@0:                 {
ferencd@0:                     if (isspace(static_cast<unsigned char>(*fmt)))
ferencd@0:                     {
ferencd@0:                         // space matches 0 or more white space characters
ferencd@0:                         if (is.good())
ferencd@0:                            ws(is);
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                         read(is, *fmt);
ferencd@0:                 }
ferencd@0:                 break;
ferencd@0:             }
ferencd@0:         }
ferencd@0:         // is.fail() || *fmt == CharT{}
ferencd@0:         if (is.rdstate() == ios::goodbit && command)
ferencd@0:         {
ferencd@0:             if (modified == CharT{})
ferencd@0:                 read(is, CharT{'%'}, width);
ferencd@0:             else
ferencd@0:                 read(is, CharT{'%'}, width, modified);
ferencd@0:         }
ferencd@0:         if (!is.fail())
ferencd@0:         {
ferencd@0:             if (y != not_a_2digit_year)
ferencd@0:             {
ferencd@0:                 // Convert y and an optional C to Y
ferencd@0:                 if (!(0 <= y && y <= 99))
ferencd@0:                     goto broken;
ferencd@0:                 if (C == not_a_century)
ferencd@0:                 {
ferencd@0:                     if (Y == not_a_year)
ferencd@0:                     {
ferencd@0:                         if (y >= 69)
ferencd@0:                             C = 19;
ferencd@0:                         else
ferencd@0:                             C = 20;
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                     {
ferencd@0:                         C = (Y >= 0 ? Y : Y-100) / 100;
ferencd@0:                     }
ferencd@0:                 }
ferencd@0:                 int tY;
ferencd@0:                 if (C >= 0)
ferencd@0:                     tY = 100*C + y;
ferencd@0:                 else
ferencd@0:                     tY = 100*(C+1) - (y == 0 ? 100 : y);
ferencd@0:                 if (Y != not_a_year && Y != tY)
ferencd@0:                     goto broken;
ferencd@0:                 Y = tY;
ferencd@0:             }
ferencd@0:             if (g != not_a_2digit_year)
ferencd@0:             {
ferencd@0:                 // Convert g and an optional C to G
ferencd@0:                 if (!(0 <= g && g <= 99))
ferencd@0:                     goto broken;
ferencd@0:                 if (C == not_a_century)
ferencd@0:                 {
ferencd@0:                     if (G == not_a_year)
ferencd@0:                     {
ferencd@0:                         if (g >= 69)
ferencd@0:                             C = 19;
ferencd@0:                         else
ferencd@0:                             C = 20;
ferencd@0:                     }
ferencd@0:                     else
ferencd@0:                     {
ferencd@0:                         C = (G >= 0 ? G : G-100) / 100;
ferencd@0:                     }
ferencd@0:                 }
ferencd@0:                 int tG;
ferencd@0:                 if (C >= 0)
ferencd@0:                     tG = 100*C + g;
ferencd@0:                 else
ferencd@0:                     tG = 100*(C+1) - (g == 0 ? 100 : g);
ferencd@0:                 if (G != not_a_year && G != tG)
ferencd@0:                     goto broken;
ferencd@0:                 G = tG;
ferencd@0:             }
ferencd@0:             if (Y < static_cast<int>(year::min()) || Y > static_cast<int>(year::max()))
ferencd@0:                 Y = not_a_year;
ferencd@0:             bool computed = false;
ferencd@0:             if (G != not_a_year && V != not_a_week_num && wd != not_a_weekday)
ferencd@0:             {
ferencd@0:                 year_month_day ymd_trial = sys_days(year{G-1}/December/Thursday[last]) +
ferencd@0:                                            (Monday-Thursday) + weeks{V-1} +
ferencd@0:                                            (weekday{static_cast<unsigned>(wd)}-Monday);
ferencd@0:                 if (Y == not_a_year)
ferencd@0:                     Y = static_cast<int>(ymd_trial.year());
ferencd@0:                 else if (year{Y} != ymd_trial.year())
ferencd@0:                     goto broken;
ferencd@0:                 if (m == not_a_month)
ferencd@0:                     m = static_cast<int>(static_cast<unsigned>(ymd_trial.month()));
ferencd@0:                 else if (month(static_cast<unsigned>(m)) != ymd_trial.month())
ferencd@0:                     goto broken;
ferencd@0:                 if (d == not_a_day)
ferencd@0:                     d = static_cast<int>(static_cast<unsigned>(ymd_trial.day()));
ferencd@0:                 else if (day(static_cast<unsigned>(d)) != ymd_trial.day())
ferencd@0:                     goto broken;
ferencd@0:                 computed = true;
ferencd@0:             }
ferencd@0:             if (Y != not_a_year && U != not_a_week_num && wd != not_a_weekday)
ferencd@0:             {
ferencd@0:                 year_month_day ymd_trial = sys_days(year{Y}/January/Sunday[1]) +
ferencd@0:                                            weeks{U-1} +
ferencd@0:                                            (weekday{static_cast<unsigned>(wd)} - Sunday);
ferencd@0:                 if (Y == not_a_year)
ferencd@0:                     Y = static_cast<int>(ymd_trial.year());
ferencd@0:                 else if (year{Y} != ymd_trial.year())
ferencd@0:                     goto broken;
ferencd@0:                 if (m == not_a_month)
ferencd@0:                     m = static_cast<int>(static_cast<unsigned>(ymd_trial.month()));
ferencd@0:                 else if (month(static_cast<unsigned>(m)) != ymd_trial.month())
ferencd@0:                     goto broken;
ferencd@0:                 if (d == not_a_day)
ferencd@0:                     d = static_cast<int>(static_cast<unsigned>(ymd_trial.day()));
ferencd@0:                 else if (day(static_cast<unsigned>(d)) != ymd_trial.day())
ferencd@0:                     goto broken;
ferencd@0:                 computed = true;
ferencd@0:             }
ferencd@0:             if (Y != not_a_year && W != not_a_week_num && wd != not_a_weekday)
ferencd@0:             {
ferencd@0:                 year_month_day ymd_trial = sys_days(year{Y}/January/Monday[1]) +
ferencd@0:                                            weeks{W-1} +
ferencd@0:                                            (weekday{static_cast<unsigned>(wd)} - Monday);
ferencd@0:                 if (Y == not_a_year)
ferencd@0:                     Y = static_cast<int>(ymd_trial.year());
ferencd@0:                 else if (year{Y} != ymd_trial.year())
ferencd@0:                     goto broken;
ferencd@0:                 if (m == not_a_month)
ferencd@0:                     m = static_cast<int>(static_cast<unsigned>(ymd_trial.month()));
ferencd@0:                 else if (month(static_cast<unsigned>(m)) != ymd_trial.month())
ferencd@0:                     goto broken;
ferencd@0:                 if (d == not_a_day)
ferencd@0:                     d = static_cast<int>(static_cast<unsigned>(ymd_trial.day()));
ferencd@0:                 else if (day(static_cast<unsigned>(d)) != ymd_trial.day())
ferencd@0:                     goto broken;
ferencd@0:                 computed = true;
ferencd@0:             }
ferencd@0:             if (j != not_a_doy && Y != not_a_year)
ferencd@0:             {
ferencd@0:                 auto ymd_trial = year_month_day{local_days(year{Y}/1/1) + days{j-1}};
ferencd@0:                 if (m == 0)
ferencd@0:                     m = static_cast<int>(static_cast<unsigned>(ymd_trial.month()));
ferencd@0:                 else if (month(static_cast<unsigned>(m)) != ymd_trial.month())
ferencd@0:                     goto broken;
ferencd@0:                 if (d == 0)
ferencd@0:                     d = static_cast<int>(static_cast<unsigned>(ymd_trial.day()));
ferencd@0:                 else if (day(static_cast<unsigned>(d)) != ymd_trial.day())
ferencd@0:                     goto broken;
ferencd@0:                 j = not_a_doy;
ferencd@0:             }
ferencd@0:             auto ymd = year{Y}/m/d;
ferencd@0:             if (ymd.ok())
ferencd@0:             {
ferencd@0:                 if (wd == not_a_weekday)
ferencd@0:                     wd = static_cast<int>((weekday(sys_days(ymd)) - Sunday).count());
ferencd@0:                 else if (wd != static_cast<int>((weekday(sys_days(ymd)) - Sunday).count()))
ferencd@0:                     goto broken;
ferencd@0:                 if (!computed)
ferencd@0:                 {
ferencd@0:                     if (G != not_a_year || V != not_a_week_num)
ferencd@0:                     {
ferencd@0:                         sys_days sd = ymd;
ferencd@0:                         auto G_trial = year_month_day{sd + days{3}}.year();
ferencd@0:                         auto start = sys_days((G_trial - years{1})/December/Thursday[last]) +
ferencd@0:                                      (Monday - Thursday);
ferencd@0:                         if (sd < start)
ferencd@0:                         {
ferencd@0:                             --G_trial;
ferencd@0:                             if (V != not_a_week_num)
ferencd@0:                                 start = sys_days((G_trial - years{1})/December/Thursday[last])
ferencd@0:                                         + (Monday - Thursday);
ferencd@0:                         }
ferencd@0:                         if (G != not_a_year && G != static_cast<int>(G_trial))
ferencd@0:                             goto broken;
ferencd@0:                         if (V != not_a_week_num)
ferencd@0:                         {
ferencd@0:                             auto V_trial = duration_cast<weeks>(sd - start).count() + 1;
ferencd@0:                             if (V != V_trial)
ferencd@0:                                 goto broken;
ferencd@0:                         }
ferencd@0:                     }
ferencd@0:                     if (U != not_a_week_num)
ferencd@0:                     {
ferencd@0:                         auto start = sys_days(Sunday[1]/January/ymd.year());
ferencd@0:                         auto U_trial = floor<weeks>(sys_days(ymd) - start).count() + 1;
ferencd@0:                         if (U != U_trial)
ferencd@0:                             goto broken;
ferencd@0:                     }
ferencd@0:                     if (W != not_a_week_num)
ferencd@0:                     {
ferencd@0:                         auto start = sys_days(Monday[1]/January/ymd.year());
ferencd@0:                         auto W_trial = floor<weeks>(sys_days(ymd) - start).count() + 1;
ferencd@0:                         if (W != W_trial)
ferencd@0:                             goto broken;
ferencd@0:                     }
ferencd@0:                 }
ferencd@0:             }
ferencd@0:             fds.ymd = ymd;
ferencd@0:             if (I != not_a_hour_12_value)
ferencd@0:             {
ferencd@0:                 if (!(1 <= I && I <= 12))
ferencd@0:                     goto broken;
ferencd@0:                 if (p != not_a_ampm)
ferencd@0:                 {
ferencd@0:                     // p is in [0, 1] == [AM, PM]
ferencd@0:                     // Store trial H in I
ferencd@0:                     if (I == 12)
ferencd@0:                         --p;
ferencd@0:                     I += p*12;
ferencd@0:                     // Either set H from I or make sure H and I are consistent
ferencd@0:                     if (H == not_a_hour)
ferencd@0:                         H = I;
ferencd@0:                     else if (I != H)
ferencd@0:                         goto broken;
ferencd@0:                 }
ferencd@0:                 else  // p == not_a_ampm
ferencd@0:                 {
ferencd@0:                     // if H, make sure H and I could be consistent
ferencd@0:                     if (H != not_a_hour)
ferencd@0:                     {
ferencd@0:                         if (I == 12)
ferencd@0:                         {
ferencd@0:                             if (H != 0 && H != 12)
ferencd@0:                                 goto broken;
ferencd@0:                         }
ferencd@0:                         else if (!(I == H || I == H+12))
ferencd@0:                         {
ferencd@0:                             goto broken;
ferencd@0:                         }
ferencd@0:                     }
ferencd@0:                 }
ferencd@0:             }
ferencd@0:             if (H != not_a_hour)
ferencd@0:             {
ferencd@0:                 fds.has_tod = true;
ferencd@0:                 fds.tod = hh_mm_ss<Duration>{hours{H}};
ferencd@0:             }
ferencd@0:             if (M != not_a_minute)
ferencd@0:             {
ferencd@0:                 fds.has_tod = true;
ferencd@0:                 fds.tod.m_ = minutes{M};
ferencd@0:             }
ferencd@0:             if (s != not_a_second)
ferencd@0:             {
ferencd@0:                 fds.has_tod = true;
ferencd@0:                 fds.tod.s_ = detail::decimal_format_seconds<Duration>{s};
ferencd@0:             }
ferencd@0:             if (j != not_a_doy)
ferencd@0:             {
ferencd@0:                 fds.has_tod = true;
ferencd@0:                 fds.tod.h_ += hours{days{j}};
ferencd@0:             }
ferencd@0:             if (wd != not_a_weekday)
ferencd@0:                 fds.wd = weekday{static_cast<unsigned>(wd)};
ferencd@0:             if (abbrev != nullptr)
ferencd@0:                 *abbrev = std::move(temp_abbrev);
ferencd@0:             if (offset != nullptr && temp_offset != not_a_offset)
ferencd@0:               *offset = temp_offset;
ferencd@0:         }
ferencd@0:        return is;
ferencd@0:     }
ferencd@0: broken:
ferencd@0:     is.setstate(ios::failbit);
ferencd@0:     return is;
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Alloc = std::allocator<CharT>>
ferencd@0: std::basic_istream<CharT, Traits>&
ferencd@0: from_stream(std::basic_istream<CharT, Traits>& is, const CharT* fmt, year& y,
ferencd@0:             std::basic_string<CharT, Traits, Alloc>* abbrev = nullptr,
ferencd@0:             std::chrono::minutes* offset = nullptr)
ferencd@0: {
ferencd@0:     using CT = std::chrono::seconds;
ferencd@0:     fields<CT> fds{};
ferencd@0:     from_stream(is, fmt, fds, abbrev, offset);
ferencd@0:     if (!fds.ymd.year().ok())
ferencd@0:         is.setstate(std::ios::failbit);
ferencd@0:     if (!is.fail())
ferencd@0:         y = fds.ymd.year();
ferencd@0:     return is;
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Alloc = std::allocator<CharT>>
ferencd@0: std::basic_istream<CharT, Traits>&
ferencd@0: from_stream(std::basic_istream<CharT, Traits>& is, const CharT* fmt, month& m,
ferencd@0:             std::basic_string<CharT, Traits, Alloc>* abbrev = nullptr,
ferencd@0:             std::chrono::minutes* offset = nullptr)
ferencd@0: {
ferencd@0:     using CT = std::chrono::seconds;
ferencd@0:     fields<CT> fds{};
ferencd@0:     from_stream(is, fmt, fds, abbrev, offset);
ferencd@0:     if (!fds.ymd.month().ok())
ferencd@0:         is.setstate(std::ios::failbit);
ferencd@0:     if (!is.fail())
ferencd@0:         m = fds.ymd.month();
ferencd@0:     return is;
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Alloc = std::allocator<CharT>>
ferencd@0: std::basic_istream<CharT, Traits>&
ferencd@0: from_stream(std::basic_istream<CharT, Traits>& is, const CharT* fmt, day& d,
ferencd@0:             std::basic_string<CharT, Traits, Alloc>* abbrev = nullptr,
ferencd@0:             std::chrono::minutes* offset = nullptr)
ferencd@0: {
ferencd@0:     using CT = std::chrono::seconds;
ferencd@0:     fields<CT> fds{};
ferencd@0:     from_stream(is, fmt, fds, abbrev, offset);
ferencd@0:     if (!fds.ymd.day().ok())
ferencd@0:         is.setstate(std::ios::failbit);
ferencd@0:     if (!is.fail())
ferencd@0:         d = fds.ymd.day();
ferencd@0:     return is;
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Alloc = std::allocator<CharT>>
ferencd@0: std::basic_istream<CharT, Traits>&
ferencd@0: from_stream(std::basic_istream<CharT, Traits>& is, const CharT* fmt, weekday& wd,
ferencd@0:             std::basic_string<CharT, Traits, Alloc>* abbrev = nullptr,
ferencd@0:             std::chrono::minutes* offset = nullptr)
ferencd@0: {
ferencd@0:     using CT = std::chrono::seconds;
ferencd@0:     fields<CT> fds{};
ferencd@0:     from_stream(is, fmt, fds, abbrev, offset);
ferencd@0:     if (!fds.wd.ok())
ferencd@0:         is.setstate(std::ios::failbit);
ferencd@0:     if (!is.fail())
ferencd@0:         wd = fds.wd;
ferencd@0:     return is;
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Alloc = std::allocator<CharT>>
ferencd@0: std::basic_istream<CharT, Traits>&
ferencd@0: from_stream(std::basic_istream<CharT, Traits>& is, const CharT* fmt, year_month& ym,
ferencd@0:             std::basic_string<CharT, Traits, Alloc>* abbrev = nullptr,
ferencd@0:             std::chrono::minutes* offset = nullptr)
ferencd@0: {
ferencd@0:     using CT = std::chrono::seconds;
ferencd@0:     fields<CT> fds{};
ferencd@0:     from_stream(is, fmt, fds, abbrev, offset);
ferencd@0:     if (!fds.ymd.month().ok())
ferencd@0:         is.setstate(std::ios::failbit);
ferencd@0:     if (!is.fail())
ferencd@0:         ym = fds.ymd.year()/fds.ymd.month();
ferencd@0:     return is;
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Alloc = std::allocator<CharT>>
ferencd@0: std::basic_istream<CharT, Traits>&
ferencd@0: from_stream(std::basic_istream<CharT, Traits>& is, const CharT* fmt, month_day& md,
ferencd@0:             std::basic_string<CharT, Traits, Alloc>* abbrev = nullptr,
ferencd@0:             std::chrono::minutes* offset = nullptr)
ferencd@0: {
ferencd@0:     using CT = std::chrono::seconds;
ferencd@0:     fields<CT> fds{};
ferencd@0:     from_stream(is, fmt, fds, abbrev, offset);
ferencd@0:     if (!fds.ymd.month().ok() || !fds.ymd.day().ok())
ferencd@0:         is.setstate(std::ios::failbit);
ferencd@0:     if (!is.fail())
ferencd@0:         md = fds.ymd.month()/fds.ymd.day();
ferencd@0:     return is;
ferencd@0: }
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Alloc = std::allocator<CharT>>
ferencd@0: std::basic_istream<CharT, Traits>&
ferencd@0: from_stream(std::basic_istream<CharT, Traits>& is, const CharT* fmt,
ferencd@0:             year_month_day& ymd, std::basic_string<CharT, Traits, Alloc>* abbrev = nullptr,
ferencd@0:             std::chrono::minutes* offset = nullptr)
ferencd@0: {
ferencd@0:     using CT = std::chrono::seconds;
ferencd@0:     fields<CT> fds{};
ferencd@0:     from_stream(is, fmt, fds, abbrev, offset);
ferencd@0:     if (!fds.ymd.ok())
ferencd@0:         is.setstate(std::ios::failbit);
ferencd@0:     if (!is.fail())
ferencd@0:         ymd = fds.ymd;
ferencd@0:     return is;
ferencd@0: }
ferencd@0: 
ferencd@0: template <class Duration, class CharT, class Traits, class Alloc = std::allocator<CharT>>
ferencd@0: std::basic_istream<CharT, Traits>&
ferencd@0: from_stream(std::basic_istream<CharT, Traits>& is, const CharT* fmt,
ferencd@0:             sys_time<Duration>& tp, std::basic_string<CharT, Traits, Alloc>* abbrev = nullptr,
ferencd@0:             std::chrono::minutes* offset = nullptr)
ferencd@0: {
ferencd@0:     using CT = typename std::common_type<Duration, std::chrono::seconds>::type;
ferencd@0:     std::chrono::minutes offset_local{};
ferencd@0:     auto offptr = offset ? offset : &offset_local;
ferencd@0:     fields<CT> fds{};
ferencd@0:     fds.has_tod = true;
ferencd@0:     from_stream(is, fmt, fds, abbrev, offptr);
ferencd@0:     if (!fds.ymd.ok() || !fds.tod.in_conventional_range())
ferencd@0:         is.setstate(std::ios::failbit);
ferencd@0:     if (!is.fail())
ferencd@0:         tp = round<Duration>(sys_days(fds.ymd) - *offptr + fds.tod.to_duration());
ferencd@0:     return is;
ferencd@0: }
ferencd@0: 
ferencd@0: template <class Duration, class CharT, class Traits, class Alloc = std::allocator<CharT>>
ferencd@0: std::basic_istream<CharT, Traits>&
ferencd@0: from_stream(std::basic_istream<CharT, Traits>& is, const CharT* fmt,
ferencd@0:             local_time<Duration>& tp, std::basic_string<CharT, Traits, Alloc>* abbrev = nullptr,
ferencd@0:             std::chrono::minutes* offset = nullptr)
ferencd@0: {
ferencd@0:     using CT = typename std::common_type<Duration, std::chrono::seconds>::type;
ferencd@0:     fields<CT> fds{};
ferencd@0:     fds.has_tod = true;
ferencd@0:     from_stream(is, fmt, fds, abbrev, offset);
ferencd@0:     if (!fds.ymd.ok() || !fds.tod.in_conventional_range())
ferencd@0:         is.setstate(std::ios::failbit);
ferencd@0:     if (!is.fail())
ferencd@0:         tp = round<Duration>(local_seconds{local_days(fds.ymd)} + fds.tod.to_duration());
ferencd@0:     return is;
ferencd@0: }
ferencd@0: 
ferencd@0: template <class Rep, class Period, class CharT, class Traits, class Alloc = std::allocator<CharT>>
ferencd@0: std::basic_istream<CharT, Traits>&
ferencd@0: from_stream(std::basic_istream<CharT, Traits>& is, const CharT* fmt,
ferencd@0:             std::chrono::duration<Rep, Period>& d,
ferencd@0:             std::basic_string<CharT, Traits, Alloc>* abbrev = nullptr,
ferencd@0:             std::chrono::minutes* offset = nullptr)
ferencd@0: {
ferencd@0:     using Duration = std::chrono::duration<Rep, Period>;
ferencd@0:     using CT = typename std::common_type<Duration, std::chrono::seconds>::type;
ferencd@0:     fields<CT> fds{};
ferencd@0:     from_stream(is, fmt, fds, abbrev, offset);
ferencd@0:     if (!fds.has_tod)
ferencd@0:         is.setstate(std::ios::failbit);
ferencd@0:     if (!is.fail())
ferencd@0:         d = std::chrono::duration_cast<Duration>(fds.tod.to_duration());
ferencd@0:     return is;
ferencd@0: }
ferencd@0: 
ferencd@0: template <class Parsable, class CharT, class Traits = std::char_traits<CharT>,
ferencd@0:           class Alloc = std::allocator<CharT>>
ferencd@0: struct parse_manip
ferencd@0: {
ferencd@0:     const std::basic_string<CharT, Traits, Alloc> format_;
ferencd@0:     Parsable&                                     tp_;
ferencd@0:     std::basic_string<CharT, Traits, Alloc>*      abbrev_;
ferencd@0:     std::chrono::minutes*                         offset_;
ferencd@0: 
ferencd@0: public:
ferencd@0:     parse_manip(std::basic_string<CharT, Traits, Alloc> format, Parsable& tp,
ferencd@0:                 std::basic_string<CharT, Traits, Alloc>* abbrev = nullptr,
ferencd@0:                 std::chrono::minutes* offset = nullptr)
ferencd@0:         : format_(std::move(format))
ferencd@0:         , tp_(tp)
ferencd@0:         , abbrev_(abbrev)
ferencd@0:         , offset_(offset)
ferencd@0:         {}
ferencd@0: 
ferencd@0: };
ferencd@0: 
ferencd@0: template <class Parsable, class CharT, class Traits, class Alloc>
ferencd@0: std::basic_istream<CharT, Traits>&
ferencd@0: operator>>(std::basic_istream<CharT, Traits>& is,
ferencd@0:            const parse_manip<Parsable, CharT, Traits, Alloc>& x)
ferencd@0: {
ferencd@0:     return from_stream(is, x.format_.c_str(), x.tp_, x.abbrev_, x.offset_);
ferencd@0: }
ferencd@0: 
ferencd@0: template <class Parsable, class CharT, class Traits, class Alloc>
ferencd@0: inline
ferencd@0: auto
ferencd@0: parse(const std::basic_string<CharT, Traits, Alloc>& format, Parsable& tp)
ferencd@0:     -> decltype(from_stream(std::declval<std::basic_istream<CharT, Traits>&>(),
ferencd@0:                             format.c_str(), tp),
ferencd@0:                 parse_manip<Parsable, CharT, Traits, Alloc>{format, tp})
ferencd@0: {
ferencd@0:     return {format, tp};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class Parsable, class CharT, class Traits, class Alloc>
ferencd@0: inline
ferencd@0: auto
ferencd@0: parse(const std::basic_string<CharT, Traits, Alloc>& format, Parsable& tp,
ferencd@0:       std::basic_string<CharT, Traits, Alloc>& abbrev)
ferencd@0:     -> decltype(from_stream(std::declval<std::basic_istream<CharT, Traits>&>(),
ferencd@0:                             format.c_str(), tp, &abbrev),
ferencd@0:                 parse_manip<Parsable, CharT, Traits, Alloc>{format, tp, &abbrev})
ferencd@0: {
ferencd@0:     return {format, tp, &abbrev};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class Parsable, class CharT, class Traits, class Alloc>
ferencd@0: inline
ferencd@0: auto
ferencd@0: parse(const std::basic_string<CharT, Traits, Alloc>& format, Parsable& tp,
ferencd@0:       std::chrono::minutes& offset)
ferencd@0:     -> decltype(from_stream(std::declval<std::basic_istream<CharT, Traits>&>(),
ferencd@0:                             format.c_str(), tp,
ferencd@0:                             std::declval<std::basic_string<CharT, Traits, Alloc>*>(),
ferencd@0:                             &offset),
ferencd@0:                 parse_manip<Parsable, CharT, Traits, Alloc>{format, tp, nullptr, &offset})
ferencd@0: {
ferencd@0:     return {format, tp, nullptr, &offset};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class Parsable, class CharT, class Traits, class Alloc>
ferencd@0: inline
ferencd@0: auto
ferencd@0: parse(const std::basic_string<CharT, Traits, Alloc>& format, Parsable& tp,
ferencd@0:       std::basic_string<CharT, Traits, Alloc>& abbrev, std::chrono::minutes& offset)
ferencd@0:     -> decltype(from_stream(std::declval<std::basic_istream<CharT, Traits>&>(),
ferencd@0:                             format.c_str(), tp, &abbrev, &offset),
ferencd@0:                 parse_manip<Parsable, CharT, Traits, Alloc>{format, tp, &abbrev, &offset})
ferencd@0: {
ferencd@0:     return {format, tp, &abbrev, &offset};
ferencd@0: }
ferencd@0: 
ferencd@0: // const CharT* formats
ferencd@0: 
ferencd@0: template <class Parsable, class CharT>
ferencd@0: inline
ferencd@0: auto
ferencd@0: parse(const CharT* format, Parsable& tp)
ferencd@0:     -> decltype(from_stream(std::declval<std::basic_istream<CharT>&>(), format, tp),
ferencd@0:                 parse_manip<Parsable, CharT>{format, tp})
ferencd@0: {
ferencd@0:     return {format, tp};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class Parsable, class CharT, class Traits, class Alloc>
ferencd@0: inline
ferencd@0: auto
ferencd@0: parse(const CharT* format, Parsable& tp, std::basic_string<CharT, Traits, Alloc>& abbrev)
ferencd@0:     -> decltype(from_stream(std::declval<std::basic_istream<CharT, Traits>&>(), format,
ferencd@0:                             tp, &abbrev),
ferencd@0:                 parse_manip<Parsable, CharT, Traits, Alloc>{format, tp, &abbrev})
ferencd@0: {
ferencd@0:     return {format, tp, &abbrev};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class Parsable, class CharT>
ferencd@0: inline
ferencd@0: auto
ferencd@0: parse(const CharT* format, Parsable& tp, std::chrono::minutes& offset)
ferencd@0:     -> decltype(from_stream(std::declval<std::basic_istream<CharT>&>(), format,
ferencd@0:                             tp, std::declval<std::basic_string<CharT>*>(), &offset),
ferencd@0:                 parse_manip<Parsable, CharT>{format, tp, nullptr, &offset})
ferencd@0: {
ferencd@0:     return {format, tp, nullptr, &offset};
ferencd@0: }
ferencd@0: 
ferencd@0: template <class Parsable, class CharT, class Traits, class Alloc>
ferencd@0: inline
ferencd@0: auto
ferencd@0: parse(const CharT* format, Parsable& tp,
ferencd@0:       std::basic_string<CharT, Traits, Alloc>& abbrev, std::chrono::minutes& offset)
ferencd@0:     -> decltype(from_stream(std::declval<std::basic_istream<CharT, Traits>&>(), format,
ferencd@0:                             tp, &abbrev, &offset),
ferencd@0:                 parse_manip<Parsable, CharT, Traits, Alloc>{format, tp, &abbrev, &offset})
ferencd@0: {
ferencd@0:     return {format, tp, &abbrev, &offset};
ferencd@0: }
ferencd@0: 
ferencd@0: // duration streaming
ferencd@0: 
ferencd@0: template <class CharT, class Traits, class Rep, class Period>
ferencd@0: inline
ferencd@0: std::basic_ostream<CharT, Traits>&
ferencd@0: operator<<(std::basic_ostream<CharT, Traits>& os,
ferencd@0:            const std::chrono::duration<Rep, Period>& d)
ferencd@0: {
ferencd@0:     return os << detail::make_string<CharT, Traits>::from(d.count()) +
ferencd@0:                  detail::get_units<CharT>(typename Period::type{});
ferencd@0: }
ferencd@0: 
ferencd@0: }  // namespace date
ferencd@0: 
ferencd@0: #ifdef _MSC_VER
ferencd@0: #   pragma warning(pop)
ferencd@0: #endif
ferencd@0: 
ferencd@0: #ifdef __GNUC__
ferencd@0: # pragma GCC diagnostic pop
ferencd@0: #endif
ferencd@0: 
ferencd@0: #endif  // DATE_H