ferencd@0: class base {
ferencd@0: public:
ferencd@0:     virtual int foo(int a)
ferencd@0:      { return 4 + a; }
ferencd@0:     virtual int bar(int a) final
ferencd@0:      { return a - 2; }
ferencd@0: };
ferencd@0: 
ferencd@0: class sub final : public base {
ferencd@0: public:
ferencd@0:     virtual int foo(int a) override
ferencd@0:      { return 8 + 2 * a; };
ferencd@0:     virtual int bar(int a)
ferencd@0:      { return a; }
ferencd@0: };
ferencd@0: 
ferencd@0: class impossible : public sub { };
ferencd@0: 
ferencd@0: int main(void)
ferencd@0: {
ferencd@0:     base b;
ferencd@0:     sub s;
ferencd@0: 
ferencd@0:     return 1;
ferencd@0: }