30 #ifndef _GLIBCXX_REFWRAP_H 31 #define _GLIBCXX_REFWRAP_H 1 33 #pragma GCC system_header 35 #if __cplusplus < 201103L 43 namespace std _GLIBCXX_VISIBILITY(default)
45 _GLIBCXX_BEGIN_NAMESPACE_VERSION
48 template<
typename _Functor,
typename = __
void_t<>>
52 template<
typename _Functor>
54 __void_t<typename _Functor::result_type>>
55 {
typedef typename _Functor::result_type result_type; };
61 template<
typename _Functor>
67 template<
typename _Res,
typename... _ArgTypes>
69 {
typedef _Res result_type; };
71 template<
typename _Res,
typename... _ArgTypes>
73 {
typedef _Res result_type; };
75 template<
typename _Res,
typename... _ArgTypes>
77 {
typedef _Res result_type; };
79 template<
typename _Res,
typename... _ArgTypes>
81 {
typedef _Res result_type; };
83 template<
typename _Res,
typename... _ArgTypes>
85 {
typedef _Res result_type; };
87 template<
typename _Res,
typename... _ArgTypes>
89 {
typedef _Res result_type; };
91 template<
typename _Res,
typename... _ArgTypes>
93 {
typedef _Res result_type; };
95 template<
typename _Res,
typename... _ArgTypes>
97 {
typedef _Res result_type; };
100 template<
typename _Res,
typename... _ArgTypes>
102 {
typedef _Res result_type; };
104 template<
typename _Res,
typename... _ArgTypes>
106 {
typedef _Res result_type; };
109 template<
typename _Res,
typename... _ArgTypes>
111 {
typedef _Res result_type; };
113 template<
typename _Res,
typename... _ArgTypes>
115 {
typedef _Res result_type; };
118 template<
typename _Res,
typename _Class,
typename... _ArgTypes>
120 {
typedef _Res result_type; };
122 template<
typename _Res,
typename _Class,
typename... _ArgTypes>
124 {
typedef _Res result_type; };
127 template<
typename _Res,
typename _Class,
typename... _ArgTypes>
129 {
typedef _Res result_type; };
131 template<
typename _Res,
typename _Class,
typename... _ArgTypes>
133 {
typedef _Res result_type; };
136 template<
typename _Res,
typename _Class,
typename... _ArgTypes>
138 {
typedef _Res result_type; };
140 template<
typename _Res,
typename _Class,
typename... _ArgTypes>
142 {
typedef _Res result_type; };
145 template<
typename _Res,
typename _Class,
typename... _ArgTypes>
148 {
typedef _Res result_type; };
150 template<
typename _Res,
typename _Class,
typename... _ArgTypes>
153 {
typedef _Res result_type; };
159 template<
typename _Functor>
165 template<
typename _Tp,
typename = __
void_t<>>
166 struct _Refwrap_base_arg1
170 template<
typename _Tp>
171 struct _Refwrap_base_arg1<_Tp,
172 __void_t<typename _Tp::argument_type>>
174 typedef typename _Tp::argument_type argument_type;
178 template<
typename _Tp,
typename = __
void_t<>>
179 struct _Refwrap_base_arg2
183 template<
typename _Tp>
184 struct _Refwrap_base_arg2<_Tp,
185 __void_t<typename _Tp::first_argument_type,
186 typename _Tp::second_argument_type>>
188 typedef typename _Tp::first_argument_type first_argument_type;
189 typedef typename _Tp::second_argument_type second_argument_type;
198 template<
typename _Tp>
204 template<
typename _Res,
typename _T1>
209 template<
typename _Res,
typename _T1>
214 template<
typename _Res,
typename _T1>
219 template<
typename _Res,
typename _T1>
225 template<
typename _Res,
typename _T1,
typename _T2>
230 template<
typename _Res,
typename _T1,
typename _T2>
235 template<
typename _Res,
typename _T1,
typename _T2>
240 template<
typename _Res,
typename _T1,
typename _T2>
246 template<
typename _Res,
typename _T1>
252 template<
typename _Res,
typename _T1,
typename _T2>
258 template<
typename _Res,
typename _T1>
264 template<
typename _Res,
typename _T1,
typename _T2>
270 template<
typename _Res,
typename _T1>
276 template<
typename _Res,
typename _T1,
typename _T2>
282 template<
typename _Res,
typename _T1>
288 template<
typename _Res,
typename _T1,
typename _T2>
294 template<
typename _Res,
typename _T1>
300 template<
typename _Res,
typename _T1,
typename _T2>
310 template<
typename _Tp>
330 operator _Tp&()
const noexcept
331 {
return this->
get(); }
337 template<
typename... _Args>
338 typename result_of<_Tp&(_Args&&...)>::type
339 operator()(_Args&&... __args)
const 347 template<
typename _Tp>
353 template<
typename _Tp>
358 template<
typename _Tp>
359 void ref(
const _Tp&&) =
delete;
361 template<
typename _Tp>
362 void cref(
const _Tp&&) =
delete;
365 template<
typename _Tp>
368 {
return ref(__t.get()); }
371 template<
typename _Tp>
374 {
return cref(__t.get()); }
378 _GLIBCXX_END_NAMESPACE_VERSION
383 #endif // _GLIBCXX_REFWRAP_H
reference_wrapper< _Tp > ref(_Tp &__t) noexcept
Denotes a reference should be taken to a variable.
Primary class template for reference_wrapper.
ISO C++ entities toplevel namespace is std.
constexpr __invoke_result< _Callable, _Args... >::type __invoke(_Callable &&__fn, _Args &&...__args) noexcept(__is_nothrow_invocable< _Callable, _Args... >::value)
Invoke a callable object.
constexpr _Tp * __addressof(_Tp &__r) noexcept
Same as C++11 std::addressof.
If we have found a result_type, extract it.
reference_wrapper< const _Tp > cref(const _Tp &__t) noexcept
Denotes a const reference should be taken to a variable.