43 #ifndef _GLIBCXX_FUNCTIONAL
44 #define _GLIBCXX_FUNCTIONAL 1
46 #pragma GCC system_header
51 #if __cplusplus >= 201103L
60 namespace std _GLIBCXX_VISIBILITY(default)
62 _GLIBCXX_BEGIN_NAMESPACE_VERSION
64 template<
typename _MemberPo
inter>
66 template<
typename _Tp,
typename _Class>
67 _Mem_fn<_Tp _Class::*>
68 mem_fn(_Tp _Class::*) noexcept;
71 template<typename _Functor, typename = __void_t<>>
75 template<
typename _Functor>
77 __void_t<typename _Functor::result_type>>
78 {
typedef typename _Functor::result_type result_type; };
84 template<
typename _Functor>
90 template<
typename _Res,
typename... _ArgTypes>
92 {
typedef _Res result_type; };
94 template<
typename _Res,
typename... _ArgTypes>
96 {
typedef _Res result_type; };
98 template<
typename _Res,
typename... _ArgTypes>
99 struct _Weak_result_type_impl<_Res(_ArgTypes...) const>
100 {
typedef _Res result_type; };
102 template<
typename _Res,
typename... _ArgTypes>
103 struct _Weak_result_type_impl<_Res(_ArgTypes......) const>
104 {
typedef _Res result_type; };
106 template<
typename _Res,
typename... _ArgTypes>
107 struct _Weak_result_type_impl<_Res(_ArgTypes...) volatile>
108 {
typedef _Res result_type; };
110 template<
typename _Res,
typename... _ArgTypes>
111 struct _Weak_result_type_impl<_Res(_ArgTypes......) volatile>
112 {
typedef _Res result_type; };
114 template<
typename _Res,
typename... _ArgTypes>
115 struct _Weak_result_type_impl<_Res(_ArgTypes...) const volatile>
116 {
typedef _Res result_type; };
118 template<
typename _Res,
typename... _ArgTypes>
119 struct _Weak_result_type_impl<_Res(_ArgTypes......) const volatile>
120 {
typedef _Res result_type; };
123 template<
typename _Res,
typename... _ArgTypes>
125 {
typedef _Res result_type; };
127 template<
typename _Res,
typename... _ArgTypes>
129 {
typedef _Res result_type; };
132 template<
typename _Res,
typename... _ArgTypes>
134 {
typedef _Res result_type; };
136 template<
typename _Res,
typename... _ArgTypes>
138 {
typedef _Res result_type; };
141 template<
typename _Res,
typename _Class,
typename... _ArgTypes>
143 {
typedef _Res result_type; };
145 template<
typename _Res,
typename _Class,
typename... _ArgTypes>
147 {
typedef _Res result_type; };
150 template<
typename _Res,
typename _Class,
typename... _ArgTypes>
152 {
typedef _Res result_type; };
154 template<
typename _Res,
typename _Class,
typename... _ArgTypes>
156 {
typedef _Res result_type; };
159 template<
typename _Res,
typename _Class,
typename... _ArgTypes>
161 {
typedef _Res result_type; };
163 template<
typename _Res,
typename _Class,
typename... _ArgTypes>
165 {
typedef _Res result_type; };
168 template<
typename _Res,
typename _Class,
typename... _ArgTypes>
171 {
typedef _Res result_type; };
173 template<
typename _Res,
typename _Class,
typename... _ArgTypes>
176 {
typedef _Res result_type; };
182 template<
typename _Functor>
191 template<
typename _Functor,
typename... _Args>
197 typename result_of<_Functor&(_Args&&...)>::type
201 return __f(std::forward<_Args>(__args)...);
204 template<
typename _Functor,
typename... _Args>
207 (is_member_pointer<_Functor>::value
208 && !is_function<_Functor>::value
209 && !is_function<typename remove_pointer<_Functor>::type>::value),
210 typename result_of<_Functor(_Args&&...)>::type
212 __invoke(_Functor& __f, _Args&&... __args)
214 return std::mem_fn(__f)(std::forward<_Args>(__args)...);
218 template<
typename _Functor,
typename... _Args>
221 (is_pointer<_Functor>::value
222 && is_function<typename remove_pointer<_Functor>::type>::value),
223 typename result_of<_Functor(_Args&&...)>::type
225 __invoke(_Functor __f, _Args&&... __args)
227 return __f(std::forward<_Args>(__args)...);
235 template<
bool _Unary,
bool _Binary,
typename _Tp>
239 template<
typename _Tp>
245 template<
typename _Tp>
249 typedef typename _Tp::argument_type argument_type;
253 template<
typename _Tp>
254 struct _Reference_wrapper_base_impl<false, true, _Tp>
255 : _Weak_result_type<_Tp>
257 typedef typename _Tp::first_argument_type first_argument_type;
258 typedef typename _Tp::second_argument_type second_argument_type;
262 template<
typename _Tp>
263 struct _Reference_wrapper_base_impl<true, true, _Tp>
264 : _Weak_result_type<_Tp>
266 typedef typename _Tp::argument_type argument_type;
267 typedef typename _Tp::first_argument_type first_argument_type;
268 typedef typename _Tp::second_argument_type second_argument_type;
271 _GLIBCXX_HAS_NESTED_TYPE(argument_type)
272 _GLIBCXX_HAS_NESTED_TYPE(first_argument_type)
273 _GLIBCXX_HAS_NESTED_TYPE(second_argument_type)
281 template<typename _Tp>
284 __has_argument_type<_Tp>::value,
285 __has_first_argument_type<_Tp>::value
286 && __has_second_argument_type<_Tp>::value,
291 template<
typename _Res,
typename _T1>
296 template<
typename _Res,
typename _T1>
297 struct _Reference_wrapper_base<_Res(_T1) const>
298 : unary_function<_T1, _Res>
301 template<
typename _Res,
typename _T1>
302 struct _Reference_wrapper_base<_Res(_T1) volatile>
303 : unary_function<_T1, _Res>
306 template<
typename _Res,
typename _T1>
307 struct _Reference_wrapper_base<_Res(_T1) const volatile>
308 : unary_function<_T1, _Res>
312 template<
typename _Res,
typename _T1,
typename _T2>
313 struct _Reference_wrapper_base<_Res(_T1, _T2)>
314 : binary_function<_T1, _T2, _Res>
317 template<
typename _Res,
typename _T1,
typename _T2>
318 struct _Reference_wrapper_base<_Res(_T1, _T2) const>
319 : binary_function<_T1, _T2, _Res>
322 template<
typename _Res,
typename _T1,
typename _T2>
323 struct _Reference_wrapper_base<_Res(_T1, _T2) volatile>
324 : binary_function<_T1, _T2, _Res>
327 template<
typename _Res,
typename _T1,
typename _T2>
328 struct _Reference_wrapper_base<_Res(_T1, _T2) const volatile>
329 : binary_function<_T1, _T2, _Res>
333 template<
typename _Res,
typename _T1>
334 struct _Reference_wrapper_base<_Res(*)(_T1)>
335 : unary_function<_T1, _Res>
339 template<
typename _Res,
typename _T1,
typename _T2>
340 struct _Reference_wrapper_base<_Res(*)(_T1, _T2)>
341 : binary_function<_T1, _T2, _Res>
345 template<
typename _Res,
typename _T1>
346 struct _Reference_wrapper_base<_Res (_T1::*)()>
347 : unary_function<_T1*, _Res>
351 template<
typename _Res,
typename _T1,
typename _T2>
352 struct _Reference_wrapper_base<_Res (_T1::*)(_T2)>
353 : binary_function<_T1*, _T2, _Res>
357 template<
typename _Res,
typename _T1>
358 struct _Reference_wrapper_base<_Res (_T1::*)() const>
359 : unary_function<const _T1*, _Res>
363 template<
typename _Res,
typename _T1,
typename _T2>
364 struct _Reference_wrapper_base<_Res (_T1::*)(_T2) const>
365 : binary_function<const _T1*, _T2, _Res>
369 template<
typename _Res,
typename _T1>
370 struct _Reference_wrapper_base<_Res (_T1::*)() volatile>
371 : unary_function<volatile _T1*, _Res>
375 template<
typename _Res,
typename _T1,
typename _T2>
376 struct _Reference_wrapper_base<_Res (_T1::*)(_T2) volatile>
377 : binary_function<volatile _T1*, _T2, _Res>
381 template<
typename _Res,
typename _T1>
382 struct _Reference_wrapper_base<_Res (_T1::*)() const volatile>
383 : unary_function<const volatile _T1*, _Res>
387 template<
typename _Res,
typename _T1,
typename _T2>
388 struct _Reference_wrapper_base<_Res (_T1::*)(_T2) const volatile>
389 : binary_function<const volatile _T1*, _T2, _Res>
397 template<
typename _Tp>
417 operator _Tp&()
const noexcept
418 {
return this->
get(); }
424 template<
typename... _Args>
425 typename result_of<_Tp&(_Args&&...)>::type
426 operator()(_Args&&... __args)
const
428 return __invoke(
get(), std::forward<_Args>(__args)...);
434 template<
typename _Tp>
440 template<
typename _Tp>
441 inline reference_wrapper<const _Tp>
445 template<
typename _Tp>
446 void ref(
const _Tp&&) =
delete;
448 template<
typename _Tp>
449 void cref(
const _Tp&&) =
delete;
452 template<
typename _Tp>
453 inline reference_wrapper<_Tp>
455 {
return ref(__t.get()); }
458 template<
typename _Tp>
459 inline reference_wrapper<const _Tp>
461 {
return cref(__t.get()); }
465 template<
typename... _Types>
466 struct _Pack : integral_constant<size_t, sizeof...(_Types)>
469 template<
typename _From,
typename _To,
bool = _From::value == _To::value>
473 template<
typename... _From,
typename... _To>
474 struct _AllConvertible<_Pack<_From...>, _Pack<_To...>, true>
475 : __and_<is_convertible<_From, _To>...>
478 template<
typename _Tp1,
typename _Tp2>
479 using _NotSame = __not_<is_same<typename std::decay<_Tp1>::type,
480 typename std::decay<_Tp2>::type>>;
487 template<
typename _Res,
typename... _ArgTypes>
491 template<
typename _Res,
typename _T1>
496 template<
typename _Res,
typename _T1,
typename _T2>
500 template<
typename _Signature>
501 struct _Mem_fn_traits;
503 template<
typename _Res,
typename _Class,
typename... _ArgTypes>
504 struct _Mem_fn_traits_base
506 using __result_type = _Res;
507 using __class_type = _Class;
508 using __arg_types = _Pack<_ArgTypes...>;
514 #define _GLIBCXX_MEM_FN_TRAITS2(_CV, _REF, _LVAL, _RVAL) \
515 template<typename _Res, typename _Class, typename... _ArgTypes> \
516 struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes...) _CV _REF> \
517 : _Mem_fn_traits_base<_Res, _CV _Class, _ArgTypes...> \
519 using __pmf_type = _Res (_Class::*)(_ArgTypes...) _CV _REF; \
520 using __lvalue = _LVAL; \
521 using __rvalue = _RVAL; \
522 using __vararg = false_type; \
524 template<typename _Res, typename _Class, typename... _ArgTypes> \
525 struct _Mem_fn_traits<_Res (_Class::*)(_ArgTypes... ...) _CV _REF> \
526 : _Mem_fn_traits_base<_Res, _CV _Class, _ArgTypes...> \
528 using __pmf_type = _Res (_Class::*)(_ArgTypes... ...) _CV _REF; \
529 using __lvalue = _LVAL; \
530 using __rvalue = _RVAL; \
531 using __vararg = true_type; \
534 #define _GLIBCXX_MEM_FN_TRAITS(_REF, _LVAL, _RVAL) \
535 _GLIBCXX_MEM_FN_TRAITS2( , _REF, _LVAL, _RVAL) \
536 _GLIBCXX_MEM_FN_TRAITS2(const , _REF, _LVAL, _RVAL) \
537 _GLIBCXX_MEM_FN_TRAITS2(volatile , _REF, _LVAL, _RVAL) \
538 _GLIBCXX_MEM_FN_TRAITS2(const volatile, _REF, _LVAL, _RVAL)
542 _GLIBCXX_MEM_FN_TRAITS(&&,
false_type, true_type)
544 #undef _GLIBCXX_MEM_FN_TRAITS
545 #undef _GLIBCXX_MEM_FN_TRAITS2
547 template<
typename _MemFunPtr,
548 bool __is_mem_fn = is_member_function_pointer<_MemFunPtr>::value>
550 :
public _Mem_fn_traits<_MemFunPtr>::__maybe_type
552 using _Traits = _Mem_fn_traits<_MemFunPtr>;
554 using _Class =
typename _Traits::__class_type;
555 using _ArgTypes =
typename _Traits::__arg_types;
556 using _Pmf =
typename _Traits::__pmf_type;
558 using _Arity =
typename _Traits::__arity;
559 using _Varargs =
typename _Traits::__vararg;
561 template<
typename _Func,
typename... _BoundArgs>
562 friend struct _Bind_check_arity;
566 template<
typename _Args>
567 using _CheckArgs =
typename conditional<_Varargs::value,
568 __bool_constant<(_Args::value >= _ArgTypes::value)>,
569 _AllConvertible<_Args, _ArgTypes>
573 using result_type =
typename _Traits::__result_type;
575 explicit _Mem_fn_base(_Pmf __pmf) : _M_pmf(__pmf) { }
578 template<
typename... _Args,
typename _Req
579 = _Require<
typename _Traits::__lvalue,
580 _CheckArgs<_Pack<_Args...>>>>
582 operator()(_Class& __object, _Args&&... __args)
const
583 {
return (__object.*_M_pmf)(std::forward<_Args>(__args)...); }
585 template<
typename... _Args,
typename _Req
586 = _Require<
typename _Traits::__rvalue,
587 _CheckArgs<_Pack<_Args...>>>>
589 operator()(_Class&& __object, _Args&&... __args)
const
591 return (std::move(__object).*_M_pmf)(std::forward<_Args>(__args)...);
595 template<
typename... _Args,
typename _Req
596 = _Require<
typename _Traits::__lvalue,
597 _CheckArgs<_Pack<_Args...>>>>
599 operator()(_Class* __object, _Args&&... __args)
const
600 {
return (__object->*_M_pmf)(std::forward<_Args>(__args)...); }
603 template<
typename _Tp,
typename... _Args,
typename _Req
604 = _Require<_NotSame<_Class, _Tp>, _NotSame<_Class*, _Tp>,
605 _CheckArgs<_Pack<_Args...>>>>
607 operator()(_Tp&& __object, _Args&&... __args)
const
609 return _M_call(std::forward<_Tp>(__object), &__object,
610 std::forward<_Args>(__args)...);
614 template<
typename _Tp,
typename... _Args,
typename _Req
615 = _Require<is_base_of<_Class, _Tp>,
typename _Traits::__lvalue,
616 _CheckArgs<_Pack<_Args...>>>>
618 operator()(reference_wrapper<_Tp> __ref, _Args&&... __args)
const
619 {
return operator()(__ref.get(), std::forward<_Args>(__args)...); }
622 template<
typename _Tp,
typename... _Args>
624 _M_call(_Tp&& __object,
const volatile _Class *,
625 _Args&&... __args)
const
627 return (std::forward<_Tp>(__object).*_M_pmf)
628 (std::forward<_Args>(__args)...);
631 template<
typename _Tp,
typename... _Args>
633 _M_call(_Tp&& __ptr,
const volatile void *, _Args&&... __args)
const
634 {
return ((*__ptr).*_M_pmf)(std::forward<_Args>(__args)...); }
640 template<
typename _Res,
typename _Class>
641 class _Mem_fn_base<_Res _Class::*, false>
643 using __pm_type = _Res _Class::*;
648 template<
typename _Tp>
650 _M_call(_Tp&& __object,
const _Class *) const noexcept
651 -> decltype(
std::
forward<_Tp>(__object).*
std::declval<__pm_type&>())
652 {
return std::forward<_Tp>(__object).*_M_pm; }
654 template<
typename _Tp,
typename _Up>
656 _M_call(_Tp&& __object, _Up *
const *) const noexcept
657 -> decltype((*
std::
forward<_Tp>(__object)).*
std::declval<__pm_type&>())
658 {
return (*std::forward<_Tp>(__object)).*_M_pm; }
660 template<
typename _Tp>
662 _M_call(_Tp&& __ptr,
const volatile void*) const
663 noexcept(noexcept((*__ptr).*
std::declval<__pm_type&>()))
664 -> decltype((*__ptr).*
std::declval<__pm_type&>())
665 {
return (*__ptr).*_M_pm; }
667 using _Arity = integral_constant<size_t, 0>;
670 template<
typename _Func,
typename... _BoundArgs>
671 friend struct _Bind_check_arity;
675 _Mem_fn_base(_Res _Class::*__pm) noexcept : _M_pm(__pm) { }
679 operator()(_Class& __object)
const noexcept
680 {
return __object.*_M_pm; }
683 operator()(
const _Class& __object)
const noexcept
684 {
return __object.*_M_pm; }
687 operator()(_Class&& __object) const noexcept
688 {
return std::forward<_Class>(__object).*_M_pm; }
691 operator()(
const _Class&& __object) const noexcept
692 {
return std::forward<const _Class>(__object).*_M_pm; }
696 operator()(_Class* __object)
const noexcept
697 {
return __object->*_M_pm; }
700 operator()(
const _Class* __object)
const noexcept
701 {
return __object->*_M_pm; }
704 template<
typename _Tp,
typename _Req = _Require<_NotSame<_Class*, _Tp>>>
706 operator()(_Tp&& __unknown) const
707 noexcept(noexcept(
std::declval<_Mem_fn_base*>()->_M_call
709 -> decltype(this->_M_call(
std::
forward<_Tp>(__unknown), &__unknown))
710 {
return _M_call(std::forward<_Tp>(__unknown), &__unknown); }
712 template<
typename _Tp,
typename _Req = _Require<is_base_of<_Class, _Tp>>>
714 operator()(reference_wrapper<_Tp> __ref)
const
715 noexcept(noexcept(std::declval<_Mem_fn_base&>()(__ref.get())))
716 -> decltype((*
this)(__ref.get()))
717 {
return (*
this)(__ref.get()); }
723 template<
typename _Res,
typename _Class>
724 struct _Mem_fn<_Res _Class::*>
725 : _Mem_fn_base<_Res _Class::*>
727 using _Mem_fn_base<_Res _Class::*>::_Mem_fn_base;
737 template<
typename _Tp,
typename _Class>
738 inline _Mem_fn<_Tp _Class::*>
741 return _Mem_fn<_Tp _Class::*>(__pm);
750 template<
typename _Tp>
752 :
public false_type { };
759 template<
typename _Tp>
769 _GLIBCXX_END_NAMESPACE_VERSION
775 namespace placeholders
777 _GLIBCXX_BEGIN_NAMESPACE_VERSION
811 _GLIBCXX_END_NAMESPACE_VERSION
814 _GLIBCXX_BEGIN_NAMESPACE_VERSION
835 struct _No_tuple_element;
842 template<std::
size_t __i,
typename _Tuple,
bool _IsSafe>
851 template<std::
size_t __i,
typename _Tuple>
854 typedef _No_tuple_element type;
861 template<std::
size_t __i,
typename _Tuple>
864 (__i < tuple_size<_Tuple>::value)>
878 template<typename _Arg,
879 bool _IsBindExp = is_bind_expression<_Arg>::value,
880 bool _IsPlaceholder = (is_placeholder<_Arg>::value > 0)>
887 template<typename _Tp>
888 class
_Mu<reference_wrapper<_Tp>, false, false>
891 typedef _Tp& result_type;
897 template<
typename _CVRef,
typename _Tuple>
899 operator()(_CVRef& __arg, _Tuple&)
const volatile
900 {
return __arg.get(); }
908 template<
typename _Arg>
909 class _Mu<_Arg, true, false>
912 template<
typename _CVArg,
typename... _Args>
914 operator()(_CVArg& __arg,
916 -> decltype(__arg(declval<_Args>()...))
919 typedef typename _Build_index_tuple<
sizeof...(_Args)>::__type
921 return this->__call(__arg, __tuple, _Indexes());
927 template<
typename _CVArg,
typename... _Args, std::size_t... _Indexes>
930 const _Index_tuple<_Indexes...>&)
const volatile
931 -> decltype(__arg(declval<_Args>()...))
933 return __arg(std::forward<_Args>(std::get<_Indexes>(__tuple))...);
942 template<
typename _Arg>
943 class _Mu<_Arg, false, true>
946 template<
typename _Signature>
class result;
948 template<
typename _CVMu,
typename _CVArg,
typename _Tuple>
949 class result<_CVMu(_CVArg, _Tuple)>
959 typedef typename add_rvalue_reference<__base_type>::type type;
962 template<
typename _Tuple>
963 typename result<_Mu(_Arg, _Tuple)>::type
964 operator()(
const volatile _Arg&, _Tuple& __tuple)
const volatile
966 return std::forward<typename result<_Mu(_Arg, _Tuple)>::type>(
967 ::std::get<(is_placeholder<_Arg>::value - 1)>(__tuple));
976 template<
typename _Arg>
977 class _Mu<_Arg, false, false>
980 template<
typename _Signature>
struct result;
982 template<
typename _CVMu,
typename _CVArg,
typename _Tuple>
983 struct result<_CVMu(_CVArg, _Tuple)>
985 typedef typename add_lvalue_reference<_CVArg>::type type;
989 template<
typename _CVArg,
typename _Tuple>
991 operator()(_CVArg&& __arg, _Tuple&)
const volatile
992 {
return std::forward<_CVArg>(__arg); }
1000 template<
typename _Tp>
1006 __do_wrap(
const _Tp& __x)
1010 __do_wrap(_Tp&& __x)
1011 {
return static_cast<_Tp&&
>(__x); }
1019 template<
typename _Tp,
typename _Class>
1022 typedef _Mem_fn<_Tp _Class::*> type;
1025 __do_wrap(_Tp _Class::* __pm)
1026 {
return type(__pm); }
1040 template<std::size_t _Ind,
typename... _Tp>
1042 __volget(
volatile tuple<_Tp...>& __tuple)
1043 -> __tuple_element_t<_Ind, tuple<_Tp...>>
volatile&
1044 {
return std::get<_Ind>(
const_cast<tuple<_Tp...
>&>(__tuple)); }
1047 template<std::size_t _Ind,
typename... _Tp>
1049 __volget(
const volatile tuple<_Tp...>& __tuple)
1050 -> __tuple_element_t<_Ind, tuple<_Tp...>>
const volatile&
1051 {
return std::get<_Ind>(
const_cast<const tuple<_Tp...
>&>(__tuple)); }
1054 template<
typename _Signature>
1057 template<
typename _Functor,
typename... _Bound_args>
1058 class _Bind<_Functor(_Bound_args...)>
1061 typedef _Bind __self_type;
1062 typedef typename _Build_index_tuple<
sizeof...(_Bound_args)>::__type
1066 tuple<_Bound_args...> _M_bound_args;
1069 template<
typename _Result,
typename... _Args, std::size_t... _Indexes>
1074 (std::get<_Indexes>(_M_bound_args), __args)...);
1078 template<
typename _Result,
typename... _Args, std::size_t... _Indexes>
1083 (std::get<_Indexes>(_M_bound_args), __args)...);
1087 template<
typename _Result,
typename... _Args, std::size_t... _Indexes>
1089 __call_v(tuple<_Args...>&& __args,
1090 _Index_tuple<_Indexes...>)
volatile
1092 return _M_f(_Mu<_Bound_args>()
1093 (__volget<_Indexes>(_M_bound_args), __args)...);
1097 template<
typename _Result,
typename... _Args, std::size_t... _Indexes>
1099 __call_c_v(tuple<_Args...>&& __args,
1100 _Index_tuple<_Indexes...>)
const volatile
1102 return _M_f(_Mu<_Bound_args>()
1103 (__volget<_Indexes>(_M_bound_args), __args)...);
1107 template<
typename... _Args>
1108 explicit _Bind(
const _Functor& __f, _Args&&... __args)
1109 : _M_f(__f), _M_bound_args(
std::
forward<_Args>(__args)...)
1112 template<
typename... _Args>
1113 explicit _Bind(_Functor&& __f, _Args&&... __args)
1114 : _M_f(
std::move(__f)), _M_bound_args(
std::
forward<_Args>(__args)...)
1117 _Bind(
const _Bind&) =
default;
1120 : _M_f(
std::move(__b._M_f)), _M_bound_args(
std::move(__b._M_bound_args))
1124 template<
typename... _Args,
typename _Result
1125 = decltype( std::declval<_Functor&>()(
1126 _Mu<_Bound_args>()( std::declval<_Bound_args&>(),
1127 std::declval<tuple<_Args...>&>() )... ) )>
1129 operator()(_Args&&... __args)
1131 return this->__call<_Result>(
1132 std::forward_as_tuple(std::forward<_Args>(__args)...),
1137 template<
typename... _Args,
typename _Result
1138 = decltype( std::declval<
typename enable_if<(
sizeof...(_Args) >= 0),
1139 typename add_const<_Functor>::type&>::type>()(
1140 _Mu<_Bound_args>()( std::declval<const _Bound_args&>(),
1141 std::declval<tuple<_Args...>&>() )... ) )>
1143 operator()(_Args&&... __args)
const
1145 return this->__call_c<_Result>(
1146 std::forward_as_tuple(std::forward<_Args>(__args)...),
1151 template<
typename... _Args,
typename _Result
1152 = decltype( std::declval<
typename enable_if<(
sizeof...(_Args) >= 0),
1153 typename add_volatile<_Functor>::type&>::type>()(
1154 _Mu<_Bound_args>()( std::declval<volatile _Bound_args&>(),
1155 std::declval<tuple<_Args...>&>() )... ) )>
1157 operator()(_Args&&... __args)
volatile
1159 return this->__call_v<_Result>(
1160 std::forward_as_tuple(std::forward<_Args>(__args)...),
1165 template<
typename... _Args,
typename _Result
1166 = decltype( std::declval<
typename enable_if<(
sizeof...(_Args) >= 0),
1167 typename add_cv<_Functor>::type&>::type>()(
1168 _Mu<_Bound_args>()( std::declval<const volatile _Bound_args&>(),
1169 std::declval<tuple<_Args...>&>() )... ) )>
1171 operator()(_Args&&... __args)
const volatile
1173 return this->__call_c_v<_Result>(
1174 std::forward_as_tuple(std::forward<_Args>(__args)...),
1180 template<
typename _Result,
typename _Signature>
1183 template<
typename _Result,
typename _Functor,
typename... _Bound_args>
1187 typedef typename _Build_index_tuple<
sizeof...(_Bound_args)>::__type
1191 tuple<_Bound_args...> _M_bound_args;
1194 template<
typename _Res>
1195 struct __enable_if_void : enable_if<is_void<_Res>::value, int> { };
1196 template<
typename _Res>
1197 struct __disable_if_void : enable_if<!is_void<_Res>::value, int> { };
1200 template<
typename _Res,
typename... _Args, std::size_t... _Indexes>
1202 __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>,
1203 typename __disable_if_void<_Res>::type = 0)
1205 return _M_f(_Mu<_Bound_args>()
1206 (std::get<_Indexes>(_M_bound_args), __args)...);
1210 template<
typename _Res,
typename... _Args, std::size_t... _Indexes>
1212 __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>,
1213 typename __enable_if_void<_Res>::type = 0)
1215 _M_f(_Mu<_Bound_args>()
1216 (std::get<_Indexes>(_M_bound_args), __args)...);
1220 template<
typename _Res,
typename... _Args, std::size_t... _Indexes>
1222 __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>,
1223 typename __disable_if_void<_Res>::type = 0)
const
1225 return _M_f(_Mu<_Bound_args>()
1226 (std::get<_Indexes>(_M_bound_args), __args)...);
1230 template<
typename _Res,
typename... _Args, std::size_t... _Indexes>
1232 __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>,
1233 typename __enable_if_void<_Res>::type = 0)
const
1235 _M_f(_Mu<_Bound_args>()
1236 (std::get<_Indexes>(_M_bound_args), __args)...);
1240 template<
typename _Res,
typename... _Args, std::size_t... _Indexes>
1242 __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>,
1243 typename __disable_if_void<_Res>::type = 0)
volatile
1245 return _M_f(_Mu<_Bound_args>()
1246 (__volget<_Indexes>(_M_bound_args), __args)...);
1250 template<
typename _Res,
typename... _Args, std::size_t... _Indexes>
1252 __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>,
1253 typename __enable_if_void<_Res>::type = 0)
volatile
1255 _M_f(_Mu<_Bound_args>()
1256 (__volget<_Indexes>(_M_bound_args), __args)...);
1260 template<
typename _Res,
typename... _Args, std::size_t... _Indexes>
1262 __call(tuple<_Args...>&& __args, _Index_tuple<_Indexes...>,
1263 typename __disable_if_void<_Res>::type = 0)
const volatile
1265 return _M_f(_Mu<_Bound_args>()
1266 (__volget<_Indexes>(_M_bound_args), __args)...);
1270 template<
typename _Res,
typename... _Args, std::size_t... _Indexes>
1272 __call(tuple<_Args...>&& __args,
1273 _Index_tuple<_Indexes...>,
1274 typename __enable_if_void<_Res>::type = 0)
const volatile
1276 _M_f(_Mu<_Bound_args>()
1277 (__volget<_Indexes>(_M_bound_args), __args)...);
1281 typedef _Result result_type;
1283 template<
typename... _Args>
1284 explicit _Bind_result(
const _Functor& __f, _Args&&... __args)
1285 : _M_f(__f), _M_bound_args(
std::
forward<_Args>(__args)...)
1288 template<
typename... _Args>
1289 explicit _Bind_result(_Functor&& __f, _Args&&... __args)
1290 : _M_f(
std::move(__f)), _M_bound_args(
std::
forward<_Args>(__args)...)
1293 _Bind_result(
const _Bind_result&) =
default;
1295 _Bind_result(_Bind_result&& __b)
1296 : _M_f(
std::move(__b._M_f)), _M_bound_args(
std::move(__b._M_bound_args))
1300 template<
typename... _Args>
1302 operator()(_Args&&... __args)
1304 return this->__call<_Result>(
1305 std::forward_as_tuple(std::forward<_Args>(__args)...),
1310 template<
typename... _Args>
1312 operator()(_Args&&... __args)
const
1314 return this->__call<_Result>(
1315 std::forward_as_tuple(std::forward<_Args>(__args)...),
1320 template<
typename... _Args>
1322 operator()(_Args&&... __args)
volatile
1324 return this->__call<_Result>(
1325 std::forward_as_tuple(std::forward<_Args>(__args)...),
1330 template<
typename... _Args>
1332 operator()(_Args&&... __args)
const volatile
1334 return this->__call<_Result>(
1335 std::forward_as_tuple(std::forward<_Args>(__args)...),
1344 template<
typename _Signature>
1346 :
public true_type { };
1352 template<
typename _Signature>
1354 :
public true_type { };
1360 template<
typename _Signature>
1362 :
public true_type { };
1368 template<
typename _Signature>
1370 :
public true_type { };
1376 template<
typename _Result,
typename _Signature>
1378 :
public true_type { };
1384 template<
typename _Result,
typename _Signature>
1386 :
public true_type { };
1392 template<
typename _Result,
typename _Signature>
1394 :
public true_type { };
1400 template<
typename _Result,
typename _Signature>
1402 :
public true_type { };
1404 template<
typename _Func,
typename... _BoundArgs>
1405 struct _Bind_check_arity { };
1407 template<
typename _Ret,
typename... _Args,
typename... _BoundArgs>
1408 struct _Bind_check_arity<_Ret (*)(_Args...), _BoundArgs...>
1410 static_assert(
sizeof...(_BoundArgs) ==
sizeof...(_Args),
1411 "Wrong number of arguments for function");
1414 template<
typename _Ret,
typename... _Args,
typename... _BoundArgs>
1415 struct _Bind_check_arity<_Ret (*)(_Args......), _BoundArgs...>
1417 static_assert(
sizeof...(_BoundArgs) >=
sizeof...(_Args),
1418 "Wrong number of arguments for function");
1421 template<
typename _Tp,
typename _Class,
typename... _BoundArgs>
1422 struct _Bind_check_arity<_Tp _Class::*, _BoundArgs...>
1424 using _Arity =
typename _Mem_fn<_Tp _Class::*>::_Arity;
1425 using _Varargs =
typename _Mem_fn<_Tp _Class::*>::_Varargs;
1426 static_assert(_Varargs::value
1427 ?
sizeof...(_BoundArgs) >= _Arity::value + 1
1428 :
sizeof...(_BoundArgs) == _Arity::value + 1,
1429 "Wrong number of arguments for pointer-to-member");
1435 template<typename _Tp, typename _Tp2 = typename decay<_Tp>::type>
1436 using __is_socketlike = __or_<is_integral<_Tp2>, is_enum<_Tp2>>;
1438 template<
bool _SocketLike,
typename _Func,
typename... _BoundArgs>
1440 : _Bind_check_arity<typename decay<_Func>::type, _BoundArgs...>
1442 typedef _Maybe_wrap_member_pointer<typename decay<_Func>::type>
1444 typedef typename __maybe_type::type __func_type;
1445 typedef _Bind<__func_type(typename decay<_BoundArgs>::type...)> type;
1451 template<
typename _Func,
typename... _BoundArgs>
1452 struct _Bind_helper<true, _Func, _BoundArgs...>
1459 template<
typename _Func,
typename... _BoundArgs>
1461 _Bind_helper<__is_socketlike<_Func>::value, _Func, _BoundArgs...>::type
1462 bind(_Func&& __f, _BoundArgs&&... __args)
1464 typedef _Bind_helper<
false, _Func, _BoundArgs...> __helper_type;
1465 typedef typename __helper_type::__maybe_type __maybe_type;
1466 typedef typename __helper_type::type __result_type;
1467 return __result_type(__maybe_type::__do_wrap(std::forward<_Func>(__f)),
1468 std::forward<_BoundArgs>(__args)...);
1471 template<
typename _Result,
typename _Func,
typename... _BoundArgs>
1472 struct _Bindres_helper
1473 : _Bind_check_arity<typename decay<_Func>::type, _BoundArgs...>
1475 typedef _Maybe_wrap_member_pointer<typename decay<_Func>::type>
1477 typedef typename __maybe_type::type __functor_type;
1478 typedef _Bind_result<_Result,
1479 __functor_type(
typename decay<_BoundArgs>::type...)>
1487 template<
typename _Result,
typename _Func,
typename... _BoundArgs>
1489 typename _Bindres_helper<_Result, _Func, _BoundArgs...>::type
1490 bind(_Func&& __f, _BoundArgs&&... __args)
1492 typedef _Bindres_helper<_Result, _Func, _BoundArgs...> __helper_type;
1493 typedef typename __helper_type::__maybe_type __maybe_type;
1494 typedef typename __helper_type::type __result_type;
1495 return __result_type(__maybe_type::__do_wrap(std::forward<_Func>(__f)),
1496 std::forward<_BoundArgs>(__args)...);
1499 template<
typename _Signature>
1500 struct _Bind_simple;
1502 template<
typename _Callable,
typename... _Args>
1503 struct _Bind_simple<_Callable(_Args...)>
1505 typedef typename result_of<_Callable(_Args...)>::type result_type;
1507 template<
typename _Tp,
typename... _Up>
1509 _Bind_simple(_Tp&& __f, _Up&&... __args)
1513 _Bind_simple(
const _Bind_simple&) =
default;
1514 _Bind_simple(_Bind_simple&&) =
default;
1519 typedef typename _Build_index_tuple<
sizeof...(_Args)>::__type _Indices;
1520 return _M_invoke(_Indices());
1524 template<std::size_t... _Indices>
1525 typename result_of<_Callable(_Args...)>::type
1526 _M_invoke(_Index_tuple<_Indices...>)
1530 return std::forward<_Callable>(std::get<0>(_M_bound))(
1531 std::forward<_Args>(std::get<_Indices+1>(_M_bound))...);
1537 template<
typename _Func,
typename... _BoundArgs>
1538 struct _Bind_simple_helper
1539 : _Bind_check_arity<typename decay<_Func>::type, _BoundArgs...>
1541 typedef _Maybe_wrap_member_pointer<typename decay<_Func>::type>
1543 typedef typename __maybe_type::type __func_type;
1544 typedef _Bind_simple<__func_type(typename decay<_BoundArgs>::type...)>
1550 template<
typename _Callable,
typename... _Args>
1551 typename _Bind_simple_helper<_Callable, _Args...>::__type
1552 __bind_simple(_Callable&& __callable, _Args&&... __args)
1554 typedef _Bind_simple_helper<_Callable, _Args...> __helper_type;
1555 typedef typename __helper_type::__maybe_type __maybe_type;
1556 typedef typename __helper_type::__type __result_type;
1557 return __result_type(
1558 __maybe_type::__do_wrap( std::forward<_Callable>(__callable)),
1559 std::forward<_Args>(__args)...);
1572 const char*
what()
const noexcept;
1581 template<
typename _Tp>
1583 : is_trivially_copyable<_Tp>
::type
1586 class _Undefined_class;
1591 const void* _M_const_object;
1592 void (*_M_function_pointer)();
1593 void (_Undefined_class::*_M_member_pointer)();
1598 void* _M_access() {
return &_M_pod_data[0]; }
1599 const void* _M_access()
const {
return &_M_pod_data[0]; }
1601 template<
typename _Tp>
1604 {
return *
static_cast<_Tp*
>(_M_access()); }
1606 template<
typename _Tp>
1609 {
return *
static_cast<const _Tp*
>(_M_access()); }
1611 _Nocopy_types _M_unused;
1612 char _M_pod_data[
sizeof(_Nocopy_types)];
1615 enum _Manager_operation
1625 template<
typename _Tp>
1626 struct _Simple_type_wrapper
1628 _Simple_type_wrapper(_Tp __value) : __value(__value) { }
1633 template<
typename _Tp>
1634 struct __is_location_invariant<_Simple_type_wrapper<_Tp> >
1635 : __is_location_invariant<_Tp>
1640 template<
typename _Functor>
1642 __callable_functor(_Functor& __f)
1645 template<
typename _Member,
typename _Class>
1646 inline _Mem_fn<_Member _Class::*>
1647 __callable_functor(_Member _Class::* &__p)
1650 template<
typename _Member,
typename _Class>
1651 inline _Mem_fn<_Member _Class::*>
1652 __callable_functor(_Member _Class::*
const &__p)
1655 template<
typename _Member,
typename _Class>
1656 inline _Mem_fn<_Member _Class::*>
1657 __callable_functor(_Member _Class::*
volatile &__p)
1660 template<
typename _Member,
typename _Class>
1661 inline _Mem_fn<_Member _Class::*>
1662 __callable_functor(_Member _Class::*
const volatile &__p)
1665 template<
typename _Signature>
1672 static const std::size_t _M_max_size =
sizeof(_Nocopy_types);
1673 static const std::size_t _M_max_align = __alignof__(_Nocopy_types);
1675 template<
typename _Functor>
1679 static const bool __stored_locally =
1681 &&
sizeof(_Functor) <= _M_max_size
1682 && __alignof__(_Functor) <= _M_max_align
1683 && (_M_max_align % __alignof__(_Functor) == 0));
1689 _M_get_pointer(
const _Any_data& __source)
1691 const _Functor* __ptr =
1693 : __source._M_access<_Functor*>();
1694 return const_cast<_Functor*
>(__ptr);
1700 _M_clone(_Any_data& __dest,
const _Any_data& __source, true_type)
1702 new (__dest._M_access()) _Functor(__source._M_access<_Functor>());
1708 _M_clone(_Any_data& __dest,
const _Any_data& __source, false_type)
1710 __dest._M_access<_Functor*>() =
1711 new _Functor(*__source._M_access<_Functor*>());
1717 _M_destroy(_Any_data& __victim, true_type)
1719 __victim._M_access<_Functor>().~_Functor();
1724 _M_destroy(_Any_data& __victim, false_type)
1726 delete __victim._M_access<_Functor*>();
1731 _M_manager(_Any_data& __dest,
const _Any_data& __source,
1732 _Manager_operation __op)
1737 case __get_type_info:
1738 __dest._M_access<
const type_info*>() = &
typeid(_Functor);
1741 case __get_functor_ptr:
1742 __dest._M_access<_Functor*>() = _M_get_pointer(__source);
1745 case __clone_functor:
1746 _M_clone(__dest, __source, _Local_storage());
1749 case __destroy_functor:
1750 _M_destroy(__dest, _Local_storage());
1757 _M_init_functor(_Any_data& __functor, _Functor&& __f)
1758 { _M_init_functor(__functor, std::move(__f), _Local_storage()); }
1760 template<
typename _Signature>
1762 _M_not_empty_function(
const function<_Signature>& __f)
1763 {
return static_cast<bool>(__f); }
1765 template<
typename _Tp>
1767 _M_not_empty_function(_Tp*
const& __fp)
1770 template<
typename _Class,
typename _Tp>
1772 _M_not_empty_function(_Tp _Class::*
const& __mp)
1775 template<
typename _Tp>
1777 _M_not_empty_function(
const _Tp&)
1782 _M_init_functor(_Any_data& __functor, _Functor&& __f, true_type)
1783 {
new (__functor._M_access()) _Functor(std::move(__f)); }
1786 _M_init_functor(_Any_data& __functor, _Functor&& __f, false_type)
1787 { __functor._M_access<_Functor*>() =
new _Functor(std::move(__f)); }
1790 template<
typename _Functor>
1791 class _Ref_manager :
public _Base_manager<_Functor*>
1793 typedef _Function_base::_Base_manager<_Functor*> _Base;
1797 _M_manager(_Any_data& __dest,
const _Any_data& __source,
1798 _Manager_operation __op)
1803 case __get_type_info:
1804 __dest._M_access<
const type_info*>() = &
typeid(_Functor);
1807 case __get_functor_ptr:
1808 __dest._M_access<_Functor*>() = *_Base::_M_get_pointer(__source);
1813 _Base::_M_manager(__dest, __source, __op);
1830 _M_manager(_M_functor, _M_functor, __destroy_functor);
1834 bool _M_empty()
const {
return !_M_manager; }
1836 typedef bool (*_Manager_type)(_Any_data&,
const _Any_data&,
1837 _Manager_operation);
1839 _Any_data _M_functor;
1840 _Manager_type _M_manager;
1843 template<
typename _Signature,
typename _Functor>
1844 class _Function_handler;
1846 template<
typename _Res,
typename _Functor,
typename... _ArgTypes>
1847 class _Function_handler<_Res(_ArgTypes...), _Functor>
1848 :
public _Function_base::_Base_manager<_Functor>
1850 typedef _Function_base::_Base_manager<_Functor> _Base;
1854 _M_invoke(
const _Any_data& __functor, _ArgTypes&&... __args)
1856 return (*_Base::_M_get_pointer(__functor))(
1857 std::forward<_ArgTypes>(__args)...);
1861 template<
typename _Functor,
typename... _ArgTypes>
1862 class _Function_handler<void(_ArgTypes...), _Functor>
1863 :
public _Function_base::_Base_manager<_Functor>
1865 typedef _Function_base::_Base_manager<_Functor> _Base;
1869 _M_invoke(
const _Any_data& __functor, _ArgTypes&&... __args)
1871 (*_Base::_M_get_pointer(__functor))(
1872 std::forward<_ArgTypes>(__args)...);
1876 template<
typename _Res,
typename _Functor,
typename... _ArgTypes>
1877 class _Function_handler<_Res(_ArgTypes...), reference_wrapper<_Functor> >
1878 :
public _Function_base::_Ref_manager<_Functor>
1880 typedef _Function_base::_Ref_manager<_Functor> _Base;
1884 _M_invoke(
const _Any_data& __functor, _ArgTypes&&... __args)
1886 return std::__callable_functor(**_Base::_M_get_pointer(__functor))(
1887 std::forward<_ArgTypes>(__args)...);
1891 template<
typename _Functor,
typename... _ArgTypes>
1892 class _Function_handler<void(_ArgTypes...), reference_wrapper<_Functor> >
1893 :
public _Function_base::_Ref_manager<_Functor>
1895 typedef _Function_base::_Ref_manager<_Functor> _Base;
1899 _M_invoke(
const _Any_data& __functor, _ArgTypes&&... __args)
1901 std::__callable_functor(**_Base::_M_get_pointer(__functor))(
1902 std::forward<_ArgTypes>(__args)...);
1906 template<
typename _Class,
typename _Member,
typename _Res,
1907 typename... _ArgTypes>
1908 class _Function_handler<_Res(_ArgTypes...), _Member _Class::*>
1909 :
public _Function_handler<void(_ArgTypes...), _Member _Class::*>
1911 typedef _Function_handler<void(_ArgTypes...), _Member _Class::*>
1916 _M_invoke(
const _Any_data& __functor, _ArgTypes&&... __args)
1918 return std::mem_fn(_Base::_M_get_pointer(__functor)->__value)(
1919 std::forward<_ArgTypes>(__args)...);
1923 template<
typename _Class,
typename _Member,
typename... _ArgTypes>
1924 class _Function_handler<void(_ArgTypes...), _Member _Class::*>
1925 :
public _Function_base::_Base_manager<
1926 _Simple_type_wrapper< _Member _Class::* > >
1928 typedef _Member _Class::* _Functor;
1929 typedef _Simple_type_wrapper<_Functor> _Wrapper;
1930 typedef _Function_base::_Base_manager<_Wrapper> _Base;
1934 _M_manager(_Any_data& __dest,
const _Any_data& __source,
1935 _Manager_operation __op)
1940 case __get_type_info:
1941 __dest._M_access<
const type_info*>() = &
typeid(_Functor);
1944 case __get_functor_ptr:
1945 __dest._M_access<_Functor*>() =
1946 &_Base::_M_get_pointer(__source)->__value;
1950 _Base::_M_manager(__dest, __source, __op);
1956 _M_invoke(
const _Any_data& __functor, _ArgTypes&&... __args)
1958 std::mem_fn(_Base::_M_get_pointer(__functor)->__value)(
1959 std::forward<_ArgTypes>(__args)...);
1963 template<
typename _From,
typename _To>
1964 using __check_func_return_type
1965 = __or_<is_void<_To>, is_convertible<_From, _To>>;
1973 template<
typename _Res,
typename... _ArgTypes>
1974 class function<_Res(_ArgTypes...)>
1978 typedef _Res _Signature_type(_ArgTypes...);
1980 template<
typename _Func,
1981 typename _Res2 =
typename result_of<_Func(_ArgTypes...)>::type>
1982 struct _Callable : __check_func_return_type<_Res2, _Res> { };
1986 template<
typename _Tp>
1987 struct _Callable<function, _Tp> : false_type { };
1989 template<
typename _Cond,
typename _Tp>
1990 using _Requires =
typename enable_if<_Cond::value, _Tp>::type;
1993 typedef _Res result_type;
2008 function(nullptr_t) noexcept
2019 function(
const function& __x);
2051 template<
typename _Functor,
2052 typename = _Requires<__not_<is_same<_Functor, function>>,
void>,
2053 typename = _Requires<_Callable<_Functor>,
void>>
2071 function(__x).swap(*
this);
2089 function(std::move(__x)).swap(*
this);
2105 _M_manager(_M_functor, _M_functor, __destroy_functor);
2106 _M_manager =
nullptr;
2107 _M_invoker =
nullptr;
2128 template<
typename _Functor>
2129 _Requires<_Callable<typename decay<_Functor>::type>,
function&>
2132 function(std::forward<_Functor>(__f)).swap(*
this);
2137 template<
typename _Functor>
2141 function(__f).swap(*
this);
2156 std::swap(_M_functor, __x._M_functor);
2157 std::swap(_M_manager, __x._M_manager);
2158 std::swap(_M_invoker, __x._M_invoker);
2182 explicit operator bool() const noexcept
2183 {
return !_M_empty(); }
2195 _Res operator()(_ArgTypes... __args)
const;
2208 const type_info& target_type() const noexcept;
2219 template<typename _Functor> _Functor* target() noexcept;
2222 template<typename _Functor> const _Functor* target() const noexcept;
2226 using _Invoker_type = _Res (*)(
const _Any_data&, _ArgTypes&&...);
2227 _Invoker_type _M_invoker;
2231 template<
typename _Res,
typename... _ArgTypes>
2232 function<_Res(_ArgTypes...)>::
2233 function(
const function& __x)
2236 if (static_cast<bool>(__x))
2238 __x._M_manager(_M_functor, __x._M_functor, __clone_functor);
2239 _M_invoker = __x._M_invoker;
2240 _M_manager = __x._M_manager;
2244 template<
typename _Res,
typename... _ArgTypes>
2245 template<
typename _Functor,
typename,
typename>
2246 function<_Res(_ArgTypes...)>::
2247 function(_Functor __f)
2250 typedef _Function_handler<_Signature_type, _Functor> _My_handler;
2252 if (_My_handler::_M_not_empty_function(__f))
2254 _My_handler::_M_init_functor(_M_functor, std::move(__f));
2255 _M_invoker = &_My_handler::_M_invoke;
2256 _M_manager = &_My_handler::_M_manager;
2260 template<
typename _Res,
typename... _ArgTypes>
2262 function<_Res(_ArgTypes...)>::
2263 operator()(_ArgTypes... __args)
const
2266 __throw_bad_function_call();
2267 return _M_invoker(_M_functor, std::forward<_ArgTypes>(__args)...);
2271 template<
typename _Res,
typename... _ArgTypes>
2273 function<_Res(_ArgTypes...)>::
2274 target_type() const noexcept
2278 _Any_data __typeinfo_result;
2279 _M_manager(__typeinfo_result, _M_functor, __get_type_info);
2280 return *__typeinfo_result._M_access<
const type_info*>();
2283 return typeid(void);
2286 template<
typename _Res,
typename... _ArgTypes>
2287 template<
typename _Functor>
2289 function<_Res(_ArgTypes...)>::
2292 if (
typeid(_Functor) == target_type() && _M_manager)
2295 if (_M_manager(__ptr, _M_functor, __get_functor_ptr)
2299 return __ptr._M_access<_Functor*>();
2305 template<
typename _Res,
typename... _ArgTypes>
2306 template<
typename _Functor>
2308 function<_Res(_ArgTypes...)>::
2309 target() const noexcept
2311 if (
typeid(_Functor) == target_type() && _M_manager)
2314 _M_manager(__ptr, _M_functor, __get_functor_ptr);
2315 return __ptr._M_access<
const _Functor*>();
2331 template<
typename _Res,
typename... _Args>
2333 operator==(
const function<_Res(_Args...)>& __f, nullptr_t) noexcept
2334 {
return !
static_cast<bool>(__f); }
2337 template<
typename _Res,
typename... _Args>
2339 operator==(nullptr_t,
const function<_Res(_Args...)>& __f) noexcept
2340 {
return !
static_cast<bool>(__f); }
2349 template<
typename _Res,
typename... _Args>
2351 operator!=(
const function<_Res(_Args...)>& __f, nullptr_t) noexcept
2352 {
return static_cast<bool>(__f); }
2355 template<
typename _Res,
typename... _Args>
2357 operator!=(nullptr_t,
const function<_Res(_Args...)>& __f) noexcept
2358 {
return static_cast<bool>(__f); }
2367 template<
typename _Res,
typename... _Args>
2369 swap(
function<_Res(_Args...)>& __x,
function<_Res(_Args...)>& __y)
2372 _GLIBCXX_END_NAMESPACE_VERSION
2377 #endif // _GLIBCXX_FUNCTIONAL
reference_wrapper< const _Tp > cref(const _Tp &__t) noexcept
Denotes a const reference should be taken to a variable.
reference_wrapper< _Tp > ref(_Tp &__t) noexcept
Denotes a reference should be taken to a variable.
_Requires< _Callable< typename decay< _Functor >::type >, function & > operator=(_Functor &&__f)
Function assignment to a new target.
Exception class thrown when class template function's operator() is called with an empty target...
function & operator=(nullptr_t) noexcept
Function assignment to zero.
If we have found a result_type, extract it.
constexpr _Tp && forward(typename std::remove_reference< _Tp >::type &__t) noexcept
Forward an lvalue.
Base class of all polymorphic function object wrappers.
_Mem_fn< _Tp _Class::* > mem_fn(_Tp _Class::*) noexcept
Returns a function object that forwards to the member pointer pm.
function & operator=(reference_wrapper< _Functor > __f) noexcept
integral_constant< bool, false > false_type
The type used as a compile-time boolean with false value.
The type of placeholder objects defined by libstdc++.
_Bind_helper< __is_socketlike< _Func >::value, _Func, _BoundArgs...>::type bind(_Func &&__f, _BoundArgs &&...__args)
Function template for std::bind.
Primary class template, tuple.
Primary class template for reference_wrapper.
Type of the function object returned from bind().
const char * what() const noexcept
ISO C++ entities toplevel namespace is std.
function & operator=(const function &__x)
Function assignment operator.
Determines if the given type _Tp is a placeholder in a bind() expression and, if so, which placeholder it is. [TR1 3.6.2].
enable_if< (!is_member_pointer< _Functor >::value &&!is_function< _Functor >::value &&!is_function< typename remove_pointer< _Functor >::type >::value), typename result_of< _Functor &(_Args &&...)>::type >::type __invoke(_Functor &__f, _Args &&...__args)
Type of the function object returned from bind().
Determines if the given type _Tp is a function object should be treated as a subexpression when evalu...
_Tp * __addressof(_Tp &__r) noexcept
Same as C++11 std::addressof.
integral_constant< bool, true > true_type
The type used as a compile-time boolean with true value.
void swap(function &__x)
Swap the targets of two function objects.
function & operator=(function &&__x)
Function move-assignment operator.
Base class for all library exceptions.