2 //===------------------------ functional ----------------------------------===//
4 // The LLVM Compiler Infrastructure
6 // This file is dual licensed under the MIT and the University of Illinois Open
7 // Source Licenses. See LICENSE.TXT for details.
9 //===----------------------------------------------------------------------===//
11 #ifndef _LIBCPP_FUNCTIONAL
12 #define _LIBCPP_FUNCTIONAL
20 template <class Arg, class Result>
23 typedef Arg argument_type;
24 typedef Result result_type;
27 template <class Arg1, class Arg2, class Result>
28 struct binary_function
30 typedef Arg1 first_argument_type;
31 typedef Arg2 second_argument_type;
32 typedef Result result_type;
36 class reference_wrapper
37 : public unary_function<T1, R> // if wrapping a unary functor
38 : public binary_function<T1, T2, R> // if wraping a binary functor
43 typedef see below result_type; // Not always defined
45 // construct/copy/destroy
46 reference_wrapper(T&) noexcept;
47 reference_wrapper(T&&) = delete; // do not bind to temps
48 reference_wrapper(const reference_wrapper<T>& x) noexcept;
51 reference_wrapper& operator=(const reference_wrapper<T>& x) noexcept;
54 operator T& () const noexcept;
55 T& get() const noexcept;
58 template <class... ArgTypes>
59 typename result_of<T&(ArgTypes&&...)>::type
60 operator() (ArgTypes&&...) const;
63 template <class T> reference_wrapper<T> ref(T& t) noexcept;
64 template <class T> void ref(const T&& t) = delete;
65 template <class T> reference_wrapper<T> ref(reference_wrapper<T>t) noexcept;
67 template <class T> reference_wrapper<const T> cref(const T& t) noexcept;
68 template <class T> void cref(const T&& t) = delete;
69 template <class T> reference_wrapper<const T> cref(reference_wrapper<T> t) noexcept;
71 template <class T> // <class T=void> in C++14
72 struct plus : binary_function<T, T, T>
74 T operator()(const T& x, const T& y) const;
77 template <class T> // <class T=void> in C++14
78 struct minus : binary_function<T, T, T>
80 T operator()(const T& x, const T& y) const;
83 template <class T> // <class T=void> in C++14
84 struct multiplies : binary_function<T, T, T>
86 T operator()(const T& x, const T& y) const;
89 template <class T> // <class T=void> in C++14
90 struct divides : binary_function<T, T, T>
92 T operator()(const T& x, const T& y) const;
95 template <class T> // <class T=void> in C++14
96 struct modulus : binary_function<T, T, T>
98 T operator()(const T& x, const T& y) const;
101 template <class T> // <class T=void> in C++14
102 struct negate : unary_function<T, T>
104 T operator()(const T& x) const;
107 template <class T> // <class T=void> in C++14
108 struct equal_to : binary_function<T, T, bool>
110 bool operator()(const T& x, const T& y) const;
113 template <class T> // <class T=void> in C++14
114 struct not_equal_to : binary_function<T, T, bool>
116 bool operator()(const T& x, const T& y) const;
119 template <class T> // <class T=void> in C++14
120 struct greater : binary_function<T, T, bool>
122 bool operator()(const T& x, const T& y) const;
125 template <class T> // <class T=void> in C++14
126 struct less : binary_function<T, T, bool>
128 bool operator()(const T& x, const T& y) const;
131 template <class T> // <class T=void> in C++14
132 struct greater_equal : binary_function<T, T, bool>
134 bool operator()(const T& x, const T& y) const;
137 template <class T> // <class T=void> in C++14
138 struct less_equal : binary_function<T, T, bool>
140 bool operator()(const T& x, const T& y) const;
143 template <class T> // <class T=void> in C++14
144 struct logical_and : binary_function<T, T, bool>
146 bool operator()(const T& x, const T& y) const;
149 template <class T> // <class T=void> in C++14
150 struct logical_or : binary_function<T, T, bool>
152 bool operator()(const T& x, const T& y) const;
155 template <class T> // <class T=void> in C++14
156 struct logical_not : unary_function<T, bool>
158 bool operator()(const T& x) const;
161 template <class T> // <class T=void> in C++14
162 struct bit_and : unary_function<T, bool>
164 bool operator()(const T& x, const T& y) const;
167 template <class T> // <class T=void> in C++14
168 struct bit_or : unary_function<T, bool>
170 bool operator()(const T& x, const T& y) const;
173 template <class T> // <class T=void> in C++14
174 struct bit_xor : unary_function<T, bool>
176 bool operator()(const T& x, const T& y) const;
179 template <class T=void> // C++14
180 struct bit_xor : unary_function<T, bool>
182 bool operator()(const T& x) const;
185 template <class Predicate>
187 : public unary_function<typename Predicate::argument_type, bool>
190 explicit unary_negate(const Predicate& pred);
191 bool operator()(const typename Predicate::argument_type& x) const;
194 template <class Predicate> unary_negate<Predicate> not1(const Predicate& pred);
196 template <class Predicate>
198 : public binary_function<typename Predicate::first_argument_type,
199 typename Predicate::second_argument_type,
203 explicit binary_negate(const Predicate& pred);
204 bool operator()(const typename Predicate::first_argument_type& x,
205 const typename Predicate::second_argument_type& y) const;
208 template <class Predicate> binary_negate<Predicate> not2(const Predicate& pred);
210 template<class T> struct is_bind_expression;
211 template<class T> struct is_placeholder;
213 template<class Fn, class... BoundArgs>
214 unspecified bind(Fn&&, BoundArgs&&...);
215 template<class R, class Fn, class... BoundArgs>
216 unspecified bind(Fn&&, BoundArgs&&...);
218 namespace placeholders {
219 // M is the implementation-defined number of placeholders
220 extern unspecified _1;
221 extern unspecified _2;
225 extern unspecified _Mp;
228 template <class Operation>
230 : public unary_function<typename Operation::second_argument_type,
231 typename Operation::result_type>
235 typename Operation::first_argument_type value;
237 binder1st(const Operation& x, const typename Operation::first_argument_type y);
238 typename Operation::result_type operator()( typename Operation::second_argument_type& x) const;
239 typename Operation::result_type operator()(const typename Operation::second_argument_type& x) const;
242 template <class Operation, class T>
243 binder1st<Operation> bind1st(const Operation& op, const T& x);
245 template <class Operation>
247 : public unary_function<typename Operation::first_argument_type,
248 typename Operation::result_type>
252 typename Operation::second_argument_type value;
254 binder2nd(const Operation& x, const typename Operation::second_argument_type y);
255 typename Operation::result_type operator()( typename Operation::first_argument_type& x) const;
256 typename Operation::result_type operator()(const typename Operation::first_argument_type& x) const;
259 template <class Operation, class T>
260 binder2nd<Operation> bind2nd(const Operation& op, const T& x);
262 template <class Arg, class Result>
263 class pointer_to_unary_function : public unary_function<Arg, Result>
266 explicit pointer_to_unary_function(Result (*f)(Arg));
267 Result operator()(Arg x) const;
270 template <class Arg, class Result>
271 pointer_to_unary_function<Arg,Result> ptr_fun(Result (*f)(Arg));
273 template <class Arg1, class Arg2, class Result>
274 class pointer_to_binary_function : public binary_function<Arg1, Arg2, Result>
277 explicit pointer_to_binary_function(Result (*f)(Arg1, Arg2));
278 Result operator()(Arg1 x, Arg2 y) const;
281 template <class Arg1, class Arg2, class Result>
282 pointer_to_binary_function<Arg1,Arg2,Result> ptr_fun(Result (*f)(Arg1,Arg2));
284 template<class S, class T>
285 class mem_fun_t : public unary_function<T*, S>
288 explicit mem_fun_t(S (T::*p)());
289 S operator()(T* p) const;
292 template<class S, class T, class A>
293 class mem_fun1_t : public binary_function<T*, A, S>
296 explicit mem_fun1_t(S (T::*p)(A));
297 S operator()(T* p, A x) const;
300 template<class S, class T> mem_fun_t<S,T> mem_fun(S (T::*f)());
301 template<class S, class T, class A> mem_fun1_t<S,T,A> mem_fun(S (T::*f)(A));
303 template<class S, class T>
304 class mem_fun_ref_t : public unary_function<T, S>
307 explicit mem_fun_ref_t(S (T::*p)());
308 S operator()(T& p) const;
311 template<class S, class T, class A>
312 class mem_fun1_ref_t : public binary_function<T, A, S>
315 explicit mem_fun1_ref_t(S (T::*p)(A));
316 S operator()(T& p, A x) const;
319 template<class S, class T> mem_fun_ref_t<S,T> mem_fun_ref(S (T::*f)());
320 template<class S, class T, class A> mem_fun1_ref_t<S,T,A> mem_fun_ref(S (T::*f)(A));
322 template <class S, class T>
323 class const_mem_fun_t : public unary_function<const T*, S>
326 explicit const_mem_fun_t(S (T::*p)() const);
327 S operator()(const T* p) const;
330 template <class S, class T, class A>
331 class const_mem_fun1_t : public binary_function<const T*, A, S>
334 explicit const_mem_fun1_t(S (T::*p)(A) const);
335 S operator()(const T* p, A x) const;
338 template <class S, class T> const_mem_fun_t<S,T> mem_fun(S (T::*f)() const);
339 template <class S, class T, class A> const_mem_fun1_t<S,T,A> mem_fun(S (T::*f)(A) const);
341 template <class S, class T>
342 class const_mem_fun_ref_t : public unary_function<T, S>
345 explicit const_mem_fun_ref_t(S (T::*p)() const);
346 S operator()(const T& p) const;
349 template <class S, class T, class A>
350 class const_mem_fun1_ref_t : public binary_function<T, A, S>
353 explicit const_mem_fun1_ref_t(S (T::*p)(A) const);
354 S operator()(const T& p, A x) const;
357 template <class S, class T> const_mem_fun_ref_t<S,T> mem_fun_ref(S (T::*f)() const);
358 template <class S, class T, class A> const_mem_fun1_ref_t<S,T,A> mem_fun_ref(S (T::*f)(A) const);
360 template<class R, class T> unspecified mem_fn(R T::*);
362 class bad_function_call
367 template<class> class function; // undefined
369 template<class R, class... ArgTypes>
370 class function<R(ArgTypes...)>
371 : public unary_function<T1, R> // iff sizeof...(ArgTypes) == 1 and
372 // ArgTypes contains T1
373 : public binary_function<T1, T2, R> // iff sizeof...(ArgTypes) == 2 and
374 // ArgTypes contains T1 and T2
377 typedef R result_type;
379 // construct/copy/destroy:
381 function(nullptr_t) noexcept;
382 function(const function&);
383 function(function&&) noexcept;
386 template<Allocator Alloc>
387 function(allocator_arg_t, const Alloc&) noexcept;
388 template<Allocator Alloc>
389 function(allocator_arg_t, const Alloc&, nullptr_t) noexcept;
390 template<Allocator Alloc>
391 function(allocator_arg_t, const Alloc&, const function&);
392 template<Allocator Alloc>
393 function(allocator_arg_t, const Alloc&, function&&);
394 template<class F, Allocator Alloc>
395 function(allocator_arg_t, const Alloc&, F);
397 function& operator=(const function&);
398 function& operator=(function&&) noexcept;
399 function& operator=(nullptr_t) noexcept;
401 function& operator=(F&&);
403 function& operator=(reference_wrapper<F>) noexcept;
407 // function modifiers:
408 void swap(function&) noexcept;
409 template<class F, class Alloc>
410 void assign(F&&, const Alloc&);
412 // function capacity:
413 explicit operator bool() const noexcept;
415 // function invocation:
416 R operator()(ArgTypes...) const;
418 // function target access:
419 const std::type_info& target_type() const noexcept;
420 template <typename T> T* target() noexcept;
421 template <typename T> const T* target() const noexcept;
424 // Null pointer comparisons:
425 template <class R, class ... ArgTypes>
426 bool operator==(const function<R(ArgTypes...)>&, nullptr_t) noexcept;
428 template <class R, class ... ArgTypes>
429 bool operator==(nullptr_t, const function<R(ArgTypes...)>&) noexcept;
431 template <class R, class ... ArgTypes>
432 bool operator!=(const function<R(ArgTypes...)>&, nullptr_t) noexcept;
434 template <class R, class ... ArgTypes>
435 bool operator!=(nullptr_t, const function<R(ArgTypes...)>&) noexcept;
437 // specialized algorithms:
438 template <class R, class ... ArgTypes>
439 void swap(function<R(ArgTypes...)>&, function<R(ArgTypes...)>&) noexcept;
441 template <class T> struct hash;
443 template <> struct hash<bool>;
444 template <> struct hash<char>;
445 template <> struct hash<signed char>;
446 template <> struct hash<unsigned char>;
447 template <> struct hash<char16_t>;
448 template <> struct hash<char32_t>;
449 template <> struct hash<wchar_t>;
450 template <> struct hash<short>;
451 template <> struct hash<unsigned short>;
452 template <> struct hash<int>;
453 template <> struct hash<unsigned int>;
454 template <> struct hash<long>;
455 template <> struct hash<long long>;
456 template <> struct hash<unsigned long>;
457 template <> struct hash<unsigned long long>;
459 template <> struct hash<float>;
460 template <> struct hash<double>;
461 template <> struct hash<long double>;
463 template<class T> struct hash<T*>;
467 POLICY: For non-variadic implementations, the number of arguments is limited
468 to 3. It is hoped that the need for non-variadic implementations
474 #include <type_traits>
480 #include <__functional_base>
482 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
483 #pragma GCC system_header
486 _LIBCPP_BEGIN_NAMESPACE_STD
488 #if _LIBCPP_STD_VER > 11
489 template <class _Tp = void>
493 struct _LIBCPP_TYPE_VIS_ONLY plus : binary_function<_Tp, _Tp, _Tp>
495 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
496 _Tp operator()(const _Tp& __x, const _Tp& __y) const
500 #if _LIBCPP_STD_VER > 11
502 struct _LIBCPP_TYPE_VIS_ONLY plus<void>
504 template <class _T1, class _T2>
505 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
506 auto operator()(_T1&& __t, _T2&& __u) const
507 _NOEXCEPT_(noexcept(_VSTD::forward<_T1>(__t) + _VSTD::forward<_T2>(__u)))
508 -> decltype (_VSTD::forward<_T1>(__t) + _VSTD::forward<_T2>(__u))
509 { return _VSTD::forward<_T1>(__t) + _VSTD::forward<_T2>(__u); }
510 typedef void is_transparent;
515 #if _LIBCPP_STD_VER > 11
516 template <class _Tp = void>
520 struct _LIBCPP_TYPE_VIS_ONLY minus : binary_function<_Tp, _Tp, _Tp>
522 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
523 _Tp operator()(const _Tp& __x, const _Tp& __y) const
527 #if _LIBCPP_STD_VER > 11
529 struct _LIBCPP_TYPE_VIS_ONLY minus<void>
531 template <class _T1, class _T2>
532 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
533 auto operator()(_T1&& __t, _T2&& __u) const
534 _NOEXCEPT_(noexcept(_VSTD::forward<_T1>(__t) - _VSTD::forward<_T2>(__u)))
535 -> decltype (_VSTD::forward<_T1>(__t) - _VSTD::forward<_T2>(__u))
536 { return _VSTD::forward<_T1>(__t) - _VSTD::forward<_T2>(__u); }
537 typedef void is_transparent;
542 #if _LIBCPP_STD_VER > 11
543 template <class _Tp = void>
547 struct _LIBCPP_TYPE_VIS_ONLY multiplies : binary_function<_Tp, _Tp, _Tp>
549 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
550 _Tp operator()(const _Tp& __x, const _Tp& __y) const
554 #if _LIBCPP_STD_VER > 11
556 struct _LIBCPP_TYPE_VIS_ONLY multiplies<void>
558 template <class _T1, class _T2>
559 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
560 auto operator()(_T1&& __t, _T2&& __u) const
561 _NOEXCEPT_(noexcept(_VSTD::forward<_T1>(__t) * _VSTD::forward<_T2>(__u)))
562 -> decltype (_VSTD::forward<_T1>(__t) * _VSTD::forward<_T2>(__u))
563 { return _VSTD::forward<_T1>(__t) * _VSTD::forward<_T2>(__u); }
564 typedef void is_transparent;
569 #if _LIBCPP_STD_VER > 11
570 template <class _Tp = void>
574 struct _LIBCPP_TYPE_VIS_ONLY divides : binary_function<_Tp, _Tp, _Tp>
576 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
577 _Tp operator()(const _Tp& __x, const _Tp& __y) const
581 #if _LIBCPP_STD_VER > 11
583 struct _LIBCPP_TYPE_VIS_ONLY divides<void>
585 template <class _T1, class _T2>
586 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
587 auto operator()(_T1&& __t, _T2&& __u) const
588 _NOEXCEPT_(noexcept(_VSTD::forward<_T1>(__t) / _VSTD::forward<_T2>(__u)))
589 -> decltype (_VSTD::forward<_T1>(__t) / _VSTD::forward<_T2>(__u))
590 { return _VSTD::forward<_T1>(__t) / _VSTD::forward<_T2>(__u); }
591 typedef void is_transparent;
596 #if _LIBCPP_STD_VER > 11
597 template <class _Tp = void>
601 struct _LIBCPP_TYPE_VIS_ONLY modulus : binary_function<_Tp, _Tp, _Tp>
603 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
604 _Tp operator()(const _Tp& __x, const _Tp& __y) const
608 #if _LIBCPP_STD_VER > 11
610 struct _LIBCPP_TYPE_VIS_ONLY modulus<void>
612 template <class _T1, class _T2>
613 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
614 auto operator()(_T1&& __t, _T2&& __u) const
615 _NOEXCEPT_(noexcept(_VSTD::forward<_T1>(__t) % _VSTD::forward<_T2>(__u)))
616 -> decltype (_VSTD::forward<_T1>(__t) % _VSTD::forward<_T2>(__u))
617 { return _VSTD::forward<_T1>(__t) % _VSTD::forward<_T2>(__u); }
618 typedef void is_transparent;
623 #if _LIBCPP_STD_VER > 11
624 template <class _Tp = void>
628 struct _LIBCPP_TYPE_VIS_ONLY negate : unary_function<_Tp, _Tp>
630 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
631 _Tp operator()(const _Tp& __x) const
635 #if _LIBCPP_STD_VER > 11
637 struct _LIBCPP_TYPE_VIS_ONLY negate<void>
640 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
641 auto operator()(_Tp&& __x) const
642 _NOEXCEPT_(noexcept(- _VSTD::forward<_Tp>(__x)))
643 -> decltype (- _VSTD::forward<_Tp>(__x))
644 { return - _VSTD::forward<_Tp>(__x); }
645 typedef void is_transparent;
650 #if _LIBCPP_STD_VER > 11
651 template <class _Tp = void>
655 struct _LIBCPP_TYPE_VIS_ONLY equal_to : binary_function<_Tp, _Tp, bool>
657 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
658 bool operator()(const _Tp& __x, const _Tp& __y) const
662 #if _LIBCPP_STD_VER > 11
664 struct _LIBCPP_TYPE_VIS_ONLY equal_to<void>
666 template <class _T1, class _T2>
667 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
668 auto operator()(_T1&& __t, _T2&& __u) const
669 _NOEXCEPT_(noexcept(_VSTD::forward<_T1>(__t) == _VSTD::forward<_T2>(__u)))
670 -> decltype (_VSTD::forward<_T1>(__t) == _VSTD::forward<_T2>(__u))
671 { return _VSTD::forward<_T1>(__t) == _VSTD::forward<_T2>(__u); }
672 typedef void is_transparent;
677 #if _LIBCPP_STD_VER > 11
678 template <class _Tp = void>
682 struct _LIBCPP_TYPE_VIS_ONLY not_equal_to : binary_function<_Tp, _Tp, bool>
684 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
685 bool operator()(const _Tp& __x, const _Tp& __y) const
689 #if _LIBCPP_STD_VER > 11
691 struct _LIBCPP_TYPE_VIS_ONLY not_equal_to<void>
693 template <class _T1, class _T2>
694 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
695 auto operator()(_T1&& __t, _T2&& __u) const
696 _NOEXCEPT_(noexcept(_VSTD::forward<_T1>(__t) != _VSTD::forward<_T2>(__u)))
697 -> decltype (_VSTD::forward<_T1>(__t) != _VSTD::forward<_T2>(__u))
698 { return _VSTD::forward<_T1>(__t) != _VSTD::forward<_T2>(__u); }
699 typedef void is_transparent;
704 #if _LIBCPP_STD_VER > 11
705 template <class _Tp = void>
709 struct _LIBCPP_TYPE_VIS_ONLY greater : binary_function<_Tp, _Tp, bool>
711 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
712 bool operator()(const _Tp& __x, const _Tp& __y) const
716 #if _LIBCPP_STD_VER > 11
718 struct _LIBCPP_TYPE_VIS_ONLY greater<void>
720 template <class _T1, class _T2>
721 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
722 auto operator()(_T1&& __t, _T2&& __u) const
723 _NOEXCEPT_(noexcept(_VSTD::forward<_T1>(__t) > _VSTD::forward<_T2>(__u)))
724 -> decltype (_VSTD::forward<_T1>(__t) > _VSTD::forward<_T2>(__u))
725 { return _VSTD::forward<_T1>(__t) > _VSTD::forward<_T2>(__u); }
726 typedef void is_transparent;
731 // less in <__functional_base>
733 #if _LIBCPP_STD_VER > 11
734 template <class _Tp = void>
738 struct _LIBCPP_TYPE_VIS_ONLY greater_equal : binary_function<_Tp, _Tp, bool>
740 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
741 bool operator()(const _Tp& __x, const _Tp& __y) const
745 #if _LIBCPP_STD_VER > 11
747 struct _LIBCPP_TYPE_VIS_ONLY greater_equal<void>
749 template <class _T1, class _T2>
750 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
751 auto operator()(_T1&& __t, _T2&& __u) const
752 _NOEXCEPT_(noexcept(_VSTD::forward<_T1>(__t) >= _VSTD::forward<_T2>(__u)))
753 -> decltype (_VSTD::forward<_T1>(__t) >= _VSTD::forward<_T2>(__u))
754 { return _VSTD::forward<_T1>(__t) >= _VSTD::forward<_T2>(__u); }
755 typedef void is_transparent;
760 #if _LIBCPP_STD_VER > 11
761 template <class _Tp = void>
765 struct _LIBCPP_TYPE_VIS_ONLY less_equal : binary_function<_Tp, _Tp, bool>
767 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
768 bool operator()(const _Tp& __x, const _Tp& __y) const
772 #if _LIBCPP_STD_VER > 11
774 struct _LIBCPP_TYPE_VIS_ONLY less_equal<void>
776 template <class _T1, class _T2>
777 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
778 auto operator()(_T1&& __t, _T2&& __u) const
779 _NOEXCEPT_(noexcept(_VSTD::forward<_T1>(__t) <= _VSTD::forward<_T2>(__u)))
780 -> decltype (_VSTD::forward<_T1>(__t) <= _VSTD::forward<_T2>(__u))
781 { return _VSTD::forward<_T1>(__t) <= _VSTD::forward<_T2>(__u); }
782 typedef void is_transparent;
787 #if _LIBCPP_STD_VER > 11
788 template <class _Tp = void>
792 struct _LIBCPP_TYPE_VIS_ONLY logical_and : binary_function<_Tp, _Tp, bool>
794 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
795 bool operator()(const _Tp& __x, const _Tp& __y) const
799 #if _LIBCPP_STD_VER > 11
801 struct _LIBCPP_TYPE_VIS_ONLY logical_and<void>
803 template <class _T1, class _T2>
804 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
805 auto operator()(_T1&& __t, _T2&& __u) const
806 _NOEXCEPT_(noexcept(_VSTD::forward<_T1>(__t) && _VSTD::forward<_T2>(__u)))
807 -> decltype (_VSTD::forward<_T1>(__t) && _VSTD::forward<_T2>(__u))
808 { return _VSTD::forward<_T1>(__t) && _VSTD::forward<_T2>(__u); }
809 typedef void is_transparent;
814 #if _LIBCPP_STD_VER > 11
815 template <class _Tp = void>
819 struct _LIBCPP_TYPE_VIS_ONLY logical_or : binary_function<_Tp, _Tp, bool>
821 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
822 bool operator()(const _Tp& __x, const _Tp& __y) const
826 #if _LIBCPP_STD_VER > 11
828 struct _LIBCPP_TYPE_VIS_ONLY logical_or<void>
830 template <class _T1, class _T2>
831 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
832 auto operator()(_T1&& __t, _T2&& __u) const
833 _NOEXCEPT_(noexcept(_VSTD::forward<_T1>(__t) || _VSTD::forward<_T2>(__u)))
834 -> decltype (_VSTD::forward<_T1>(__t) || _VSTD::forward<_T2>(__u))
835 { return _VSTD::forward<_T1>(__t) || _VSTD::forward<_T2>(__u); }
836 typedef void is_transparent;
841 #if _LIBCPP_STD_VER > 11
842 template <class _Tp = void>
846 struct _LIBCPP_TYPE_VIS_ONLY logical_not : unary_function<_Tp, bool>
848 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
849 bool operator()(const _Tp& __x) const
853 #if _LIBCPP_STD_VER > 11
855 struct _LIBCPP_TYPE_VIS_ONLY logical_not<void>
858 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
859 auto operator()(_Tp&& __x) const
860 _NOEXCEPT_(noexcept(!_VSTD::forward<_Tp>(__x)))
861 -> decltype (!_VSTD::forward<_Tp>(__x))
862 { return !_VSTD::forward<_Tp>(__x); }
863 typedef void is_transparent;
868 #if _LIBCPP_STD_VER > 11
869 template <class _Tp = void>
873 struct _LIBCPP_TYPE_VIS_ONLY bit_and : binary_function<_Tp, _Tp, _Tp>
875 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
876 _Tp operator()(const _Tp& __x, const _Tp& __y) const
880 #if _LIBCPP_STD_VER > 11
882 struct _LIBCPP_TYPE_VIS_ONLY bit_and<void>
884 template <class _T1, class _T2>
885 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
886 auto operator()(_T1&& __t, _T2&& __u) const
887 _NOEXCEPT_(noexcept(_VSTD::forward<_T1>(__t) & _VSTD::forward<_T2>(__u)))
888 -> decltype (_VSTD::forward<_T1>(__t) & _VSTD::forward<_T2>(__u))
889 { return _VSTD::forward<_T1>(__t) & _VSTD::forward<_T2>(__u); }
890 typedef void is_transparent;
895 #if _LIBCPP_STD_VER > 11
896 template <class _Tp = void>
900 struct _LIBCPP_TYPE_VIS_ONLY bit_or : binary_function<_Tp, _Tp, _Tp>
902 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
903 _Tp operator()(const _Tp& __x, const _Tp& __y) const
907 #if _LIBCPP_STD_VER > 11
909 struct _LIBCPP_TYPE_VIS_ONLY bit_or<void>
911 template <class _T1, class _T2>
912 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
913 auto operator()(_T1&& __t, _T2&& __u) const
914 _NOEXCEPT_(noexcept(_VSTD::forward<_T1>(__t) | _VSTD::forward<_T2>(__u)))
915 -> decltype (_VSTD::forward<_T1>(__t) | _VSTD::forward<_T2>(__u))
916 { return _VSTD::forward<_T1>(__t) | _VSTD::forward<_T2>(__u); }
917 typedef void is_transparent;
922 #if _LIBCPP_STD_VER > 11
923 template <class _Tp = void>
927 struct _LIBCPP_TYPE_VIS_ONLY bit_xor : binary_function<_Tp, _Tp, _Tp>
929 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
930 _Tp operator()(const _Tp& __x, const _Tp& __y) const
934 #if _LIBCPP_STD_VER > 11
936 struct _LIBCPP_TYPE_VIS_ONLY bit_xor<void>
938 template <class _T1, class _T2>
939 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
940 auto operator()(_T1&& __t, _T2&& __u) const
941 _NOEXCEPT_(noexcept(_VSTD::forward<_T1>(__t) ^ _VSTD::forward<_T2>(__u)))
942 -> decltype (_VSTD::forward<_T1>(__t) ^ _VSTD::forward<_T2>(__u))
943 { return _VSTD::forward<_T1>(__t) ^ _VSTD::forward<_T2>(__u); }
944 typedef void is_transparent;
949 #if _LIBCPP_STD_VER > 11
950 template <class _Tp = void>
951 struct _LIBCPP_TYPE_VIS_ONLY bit_not : unary_function<_Tp, _Tp>
953 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
954 _Tp operator()(const _Tp& __x) const
959 struct _LIBCPP_TYPE_VIS_ONLY bit_not<void>
962 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
963 auto operator()(_Tp&& __x) const
964 _NOEXCEPT_(noexcept(~_VSTD::forward<_Tp>(__x)))
965 -> decltype (~_VSTD::forward<_Tp>(__x))
966 { return ~_VSTD::forward<_Tp>(__x); }
967 typedef void is_transparent;
971 template <class _Predicate>
972 class _LIBCPP_TYPE_VIS_ONLY unary_negate
973 : public unary_function<typename _Predicate::argument_type, bool>
977 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
978 explicit unary_negate(const _Predicate& __pred)
980 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
981 bool operator()(const typename _Predicate::argument_type& __x) const
982 {return !__pred_(__x);}
985 template <class _Predicate>
986 inline _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
987 unary_negate<_Predicate>
988 not1(const _Predicate& __pred) {return unary_negate<_Predicate>(__pred);}
990 template <class _Predicate>
991 class _LIBCPP_TYPE_VIS_ONLY binary_negate
992 : public binary_function<typename _Predicate::first_argument_type,
993 typename _Predicate::second_argument_type,
998 _LIBCPP_INLINE_VISIBILITY explicit _LIBCPP_CONSTEXPR_AFTER_CXX11
999 binary_negate(const _Predicate& __pred) : __pred_(__pred) {}
1001 _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
1002 bool operator()(const typename _Predicate::first_argument_type& __x,
1003 const typename _Predicate::second_argument_type& __y) const
1004 {return !__pred_(__x, __y);}
1007 template <class _Predicate>
1008 inline _LIBCPP_CONSTEXPR_AFTER_CXX11 _LIBCPP_INLINE_VISIBILITY
1009 binary_negate<_Predicate>
1010 not2(const _Predicate& __pred) {return binary_negate<_Predicate>(__pred);}
1012 template <class __Operation>
1013 class _LIBCPP_TYPE_VIS_ONLY binder1st
1014 : public unary_function<typename __Operation::second_argument_type,
1015 typename __Operation::result_type>
1019 typename __Operation::first_argument_type value;
1021 _LIBCPP_INLINE_VISIBILITY binder1st(const __Operation& __x,
1022 const typename __Operation::first_argument_type __y)
1023 : op(__x), value(__y) {}
1024 _LIBCPP_INLINE_VISIBILITY typename __Operation::result_type operator()
1025 (typename __Operation::second_argument_type& __x) const
1026 {return op(value, __x);}
1027 _LIBCPP_INLINE_VISIBILITY typename __Operation::result_type operator()
1028 (const typename __Operation::second_argument_type& __x) const
1029 {return op(value, __x);}
1032 template <class __Operation, class _Tp>
1033 inline _LIBCPP_INLINE_VISIBILITY
1034 binder1st<__Operation>
1035 bind1st(const __Operation& __op, const _Tp& __x)
1036 {return binder1st<__Operation>(__op, __x);}
1038 template <class __Operation>
1039 class _LIBCPP_TYPE_VIS_ONLY binder2nd
1040 : public unary_function<typename __Operation::first_argument_type,
1041 typename __Operation::result_type>
1045 typename __Operation::second_argument_type value;
1047 _LIBCPP_INLINE_VISIBILITY
1048 binder2nd(const __Operation& __x, const typename __Operation::second_argument_type __y)
1049 : op(__x), value(__y) {}
1050 _LIBCPP_INLINE_VISIBILITY typename __Operation::result_type operator()
1051 ( typename __Operation::first_argument_type& __x) const
1052 {return op(__x, value);}
1053 _LIBCPP_INLINE_VISIBILITY typename __Operation::result_type operator()
1054 (const typename __Operation::first_argument_type& __x) const
1055 {return op(__x, value);}
1058 template <class __Operation, class _Tp>
1059 inline _LIBCPP_INLINE_VISIBILITY
1060 binder2nd<__Operation>
1061 bind2nd(const __Operation& __op, const _Tp& __x)
1062 {return binder2nd<__Operation>(__op, __x);}
1064 template <class _Arg, class _Result>
1065 class _LIBCPP_TYPE_VIS_ONLY pointer_to_unary_function
1066 : public unary_function<_Arg, _Result>
1068 _Result (*__f_)(_Arg);
1070 _LIBCPP_INLINE_VISIBILITY explicit pointer_to_unary_function(_Result (*__f)(_Arg))
1072 _LIBCPP_INLINE_VISIBILITY _Result operator()(_Arg __x) const
1076 template <class _Arg, class _Result>
1077 inline _LIBCPP_INLINE_VISIBILITY
1078 pointer_to_unary_function<_Arg,_Result>
1079 ptr_fun(_Result (*__f)(_Arg))
1080 {return pointer_to_unary_function<_Arg,_Result>(__f);}
1082 template <class _Arg1, class _Arg2, class _Result>
1083 class _LIBCPP_TYPE_VIS_ONLY pointer_to_binary_function
1084 : public binary_function<_Arg1, _Arg2, _Result>
1086 _Result (*__f_)(_Arg1, _Arg2);
1088 _LIBCPP_INLINE_VISIBILITY explicit pointer_to_binary_function(_Result (*__f)(_Arg1, _Arg2))
1090 _LIBCPP_INLINE_VISIBILITY _Result operator()(_Arg1 __x, _Arg2 __y) const
1091 {return __f_(__x, __y);}
1094 template <class _Arg1, class _Arg2, class _Result>
1095 inline _LIBCPP_INLINE_VISIBILITY
1096 pointer_to_binary_function<_Arg1,_Arg2,_Result>
1097 ptr_fun(_Result (*__f)(_Arg1,_Arg2))
1098 {return pointer_to_binary_function<_Arg1,_Arg2,_Result>(__f);}
1100 template<class _Sp, class _Tp>
1101 class _LIBCPP_TYPE_VIS_ONLY mem_fun_t : public unary_function<_Tp*, _Sp>
1105 _LIBCPP_INLINE_VISIBILITY explicit mem_fun_t(_Sp (_Tp::*__p)())
1107 _LIBCPP_INLINE_VISIBILITY _Sp operator()(_Tp* __p) const
1108 {return (__p->*__p_)();}
1111 template<class _Sp, class _Tp, class _Ap>
1112 class _LIBCPP_TYPE_VIS_ONLY mem_fun1_t : public binary_function<_Tp*, _Ap, _Sp>
1114 _Sp (_Tp::*__p_)(_Ap);
1116 _LIBCPP_INLINE_VISIBILITY explicit mem_fun1_t(_Sp (_Tp::*__p)(_Ap))
1118 _LIBCPP_INLINE_VISIBILITY _Sp operator()(_Tp* __p, _Ap __x) const
1119 {return (__p->*__p_)(__x);}
1122 template<class _Sp, class _Tp>
1123 inline _LIBCPP_INLINE_VISIBILITY
1125 mem_fun(_Sp (_Tp::*__f)())
1126 {return mem_fun_t<_Sp,_Tp>(__f);}
1128 template<class _Sp, class _Tp, class _Ap>
1129 inline _LIBCPP_INLINE_VISIBILITY
1130 mem_fun1_t<_Sp,_Tp,_Ap>
1131 mem_fun(_Sp (_Tp::*__f)(_Ap))
1132 {return mem_fun1_t<_Sp,_Tp,_Ap>(__f);}
1134 template<class _Sp, class _Tp>
1135 class _LIBCPP_TYPE_VIS_ONLY mem_fun_ref_t : public unary_function<_Tp, _Sp>
1139 _LIBCPP_INLINE_VISIBILITY explicit mem_fun_ref_t(_Sp (_Tp::*__p)())
1141 _LIBCPP_INLINE_VISIBILITY _Sp operator()(_Tp& __p) const
1142 {return (__p.*__p_)();}
1145 template<class _Sp, class _Tp, class _Ap>
1146 class _LIBCPP_TYPE_VIS_ONLY mem_fun1_ref_t : public binary_function<_Tp, _Ap, _Sp>
1148 _Sp (_Tp::*__p_)(_Ap);
1150 _LIBCPP_INLINE_VISIBILITY explicit mem_fun1_ref_t(_Sp (_Tp::*__p)(_Ap))
1152 _LIBCPP_INLINE_VISIBILITY _Sp operator()(_Tp& __p, _Ap __x) const
1153 {return (__p.*__p_)(__x);}
1156 template<class _Sp, class _Tp>
1157 inline _LIBCPP_INLINE_VISIBILITY
1158 mem_fun_ref_t<_Sp,_Tp>
1159 mem_fun_ref(_Sp (_Tp::*__f)())
1160 {return mem_fun_ref_t<_Sp,_Tp>(__f);}
1162 template<class _Sp, class _Tp, class _Ap>
1163 inline _LIBCPP_INLINE_VISIBILITY
1164 mem_fun1_ref_t<_Sp,_Tp,_Ap>
1165 mem_fun_ref(_Sp (_Tp::*__f)(_Ap))
1166 {return mem_fun1_ref_t<_Sp,_Tp,_Ap>(__f);}
1168 template <class _Sp, class _Tp>
1169 class _LIBCPP_TYPE_VIS_ONLY const_mem_fun_t : public unary_function<const _Tp*, _Sp>
1171 _Sp (_Tp::*__p_)() const;
1173 _LIBCPP_INLINE_VISIBILITY explicit const_mem_fun_t(_Sp (_Tp::*__p)() const)
1175 _LIBCPP_INLINE_VISIBILITY _Sp operator()(const _Tp* __p) const
1176 {return (__p->*__p_)();}
1179 template <class _Sp, class _Tp, class _Ap>
1180 class _LIBCPP_TYPE_VIS_ONLY const_mem_fun1_t : public binary_function<const _Tp*, _Ap, _Sp>
1182 _Sp (_Tp::*__p_)(_Ap) const;
1184 _LIBCPP_INLINE_VISIBILITY explicit const_mem_fun1_t(_Sp (_Tp::*__p)(_Ap) const)
1186 _LIBCPP_INLINE_VISIBILITY _Sp operator()(const _Tp* __p, _Ap __x) const
1187 {return (__p->*__p_)(__x);}
1190 template <class _Sp, class _Tp>
1191 inline _LIBCPP_INLINE_VISIBILITY
1192 const_mem_fun_t<_Sp,_Tp>
1193 mem_fun(_Sp (_Tp::*__f)() const)
1194 {return const_mem_fun_t<_Sp,_Tp>(__f);}
1196 template <class _Sp, class _Tp, class _Ap>
1197 inline _LIBCPP_INLINE_VISIBILITY
1198 const_mem_fun1_t<_Sp,_Tp,_Ap>
1199 mem_fun(_Sp (_Tp::*__f)(_Ap) const)
1200 {return const_mem_fun1_t<_Sp,_Tp,_Ap>(__f);}
1202 template <class _Sp, class _Tp>
1203 class _LIBCPP_TYPE_VIS_ONLY const_mem_fun_ref_t : public unary_function<_Tp, _Sp>
1205 _Sp (_Tp::*__p_)() const;
1207 _LIBCPP_INLINE_VISIBILITY explicit const_mem_fun_ref_t(_Sp (_Tp::*__p)() const)
1209 _LIBCPP_INLINE_VISIBILITY _Sp operator()(const _Tp& __p) const
1210 {return (__p.*__p_)();}
1213 template <class _Sp, class _Tp, class _Ap>
1214 class _LIBCPP_TYPE_VIS_ONLY const_mem_fun1_ref_t
1215 : public binary_function<_Tp, _Ap, _Sp>
1217 _Sp (_Tp::*__p_)(_Ap) const;
1219 _LIBCPP_INLINE_VISIBILITY explicit const_mem_fun1_ref_t(_Sp (_Tp::*__p)(_Ap) const)
1221 _LIBCPP_INLINE_VISIBILITY _Sp operator()(const _Tp& __p, _Ap __x) const
1222 {return (__p.*__p_)(__x);}
1225 template <class _Sp, class _Tp>
1226 inline _LIBCPP_INLINE_VISIBILITY
1227 const_mem_fun_ref_t<_Sp,_Tp>
1228 mem_fun_ref(_Sp (_Tp::*__f)() const)
1229 {return const_mem_fun_ref_t<_Sp,_Tp>(__f);}
1231 template <class _Sp, class _Tp, class _Ap>
1232 inline _LIBCPP_INLINE_VISIBILITY
1233 const_mem_fun1_ref_t<_Sp,_Tp,_Ap>
1234 mem_fun_ref(_Sp (_Tp::*__f)(_Ap) const)
1235 {return const_mem_fun1_ref_t<_Sp,_Tp,_Ap>(__f);}
1237 #ifdef _LIBCPP_HAS_NO_VARIADICS
1239 #include <__functional_03>
1241 #else // _LIBCPP_HAS_NO_VARIADICS
1243 template <class _Tp>
1245 : public __weak_result_type<_Tp>
1254 _LIBCPP_INLINE_VISIBILITY __mem_fn(type __f) : __f_(__f) {}
1257 template <class... _ArgTypes>
1258 _LIBCPP_INLINE_VISIBILITY
1259 typename __invoke_return<type, _ArgTypes...>::type
1260 operator() (_ArgTypes&&... __args) const
1262 return __invoke(__f_, _VSTD::forward<_ArgTypes>(__args)...);
1266 template<class _Rp, class _Tp>
1267 inline _LIBCPP_INLINE_VISIBILITY
1268 __mem_fn<_Rp _Tp::*>
1269 mem_fn(_Rp _Tp::* __pm)
1271 return __mem_fn<_Rp _Tp::*>(__pm);
1274 // bad_function_call
1276 class _LIBCPP_EXCEPTION_ABI bad_function_call
1281 template<class _Fp> class _LIBCPP_TYPE_VIS_ONLY function; // undefined
1283 namespace __function
1286 template<class _Rp, class ..._ArgTypes>
1287 struct __maybe_derive_from_unary_function
1291 template<class _Rp, class _A1>
1292 struct __maybe_derive_from_unary_function<_Rp(_A1)>
1293 : public unary_function<_A1, _Rp>
1297 template<class _Rp, class ..._ArgTypes>
1298 struct __maybe_derive_from_binary_function
1302 template<class _Rp, class _A1, class _A2>
1303 struct __maybe_derive_from_binary_function<_Rp(_A1, _A2)>
1304 : public binary_function<_A1, _A2, _Rp>
1308 template<class _Fp> class __base;
1310 template<class _Rp, class ..._ArgTypes>
1311 class __base<_Rp(_ArgTypes...)>
1313 __base(const __base&);
1314 __base& operator=(const __base&);
1316 _LIBCPP_INLINE_VISIBILITY __base() {}
1317 _LIBCPP_INLINE_VISIBILITY virtual ~__base() {}
1318 virtual __base* __clone() const = 0;
1319 virtual void __clone(__base*) const = 0;
1320 virtual void destroy() _NOEXCEPT = 0;
1321 virtual void destroy_deallocate() _NOEXCEPT = 0;
1322 virtual _Rp operator()(_ArgTypes&& ...) = 0;
1323 #ifndef _LIBCPP_NO_RTTI
1324 virtual const void* target(const type_info&) const _NOEXCEPT = 0;
1325 virtual const std::type_info& target_type() const _NOEXCEPT = 0;
1326 #endif // _LIBCPP_NO_RTTI
1329 template<class _FD, class _Alloc, class _FB> class __func;
1331 template<class _Fp, class _Alloc, class _Rp, class ..._ArgTypes>
1332 class __func<_Fp, _Alloc, _Rp(_ArgTypes...)>
1333 : public __base<_Rp(_ArgTypes...)>
1335 __compressed_pair<_Fp, _Alloc> __f_;
1337 _LIBCPP_INLINE_VISIBILITY
1338 explicit __func(_Fp&& __f)
1339 : __f_(piecewise_construct, _VSTD::forward_as_tuple(_VSTD::move(__f)),
1340 _VSTD::forward_as_tuple()) {}
1341 _LIBCPP_INLINE_VISIBILITY
1342 explicit __func(const _Fp& __f, const _Alloc& __a)
1343 : __f_(piecewise_construct, _VSTD::forward_as_tuple(__f),
1344 _VSTD::forward_as_tuple(__a)) {}
1346 _LIBCPP_INLINE_VISIBILITY
1347 explicit __func(const _Fp& __f, _Alloc&& __a)
1348 : __f_(piecewise_construct, _VSTD::forward_as_tuple(__f),
1349 _VSTD::forward_as_tuple(_VSTD::move(__a))) {}
1351 _LIBCPP_INLINE_VISIBILITY
1352 explicit __func(_Fp&& __f, _Alloc&& __a)
1353 : __f_(piecewise_construct, _VSTD::forward_as_tuple(_VSTD::move(__f)),
1354 _VSTD::forward_as_tuple(_VSTD::move(__a))) {}
1355 virtual __base<_Rp(_ArgTypes...)>* __clone() const;
1356 virtual void __clone(__base<_Rp(_ArgTypes...)>*) const;
1357 virtual void destroy() _NOEXCEPT;
1358 virtual void destroy_deallocate() _NOEXCEPT;
1359 virtual _Rp operator()(_ArgTypes&& ... __arg);
1360 #ifndef _LIBCPP_NO_RTTI
1361 virtual const void* target(const type_info&) const _NOEXCEPT;
1362 virtual const std::type_info& target_type() const _NOEXCEPT;
1363 #endif // _LIBCPP_NO_RTTI
1366 template<class _Fp, class _Alloc, class _Rp, class ..._ArgTypes>
1367 __base<_Rp(_ArgTypes...)>*
1368 __func<_Fp, _Alloc, _Rp(_ArgTypes...)>::__clone() const
1370 typedef allocator_traits<_Alloc> __alloc_traits;
1371 typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
1372 _Ap __a(__f_.second());
1373 typedef __allocator_destructor<_Ap> _Dp;
1374 unique_ptr<__func, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
1375 ::new (__hold.get()) __func(__f_.first(), _Alloc(__a));
1376 return __hold.release();
1379 template<class _Fp, class _Alloc, class _Rp, class ..._ArgTypes>
1381 __func<_Fp, _Alloc, _Rp(_ArgTypes...)>::__clone(__base<_Rp(_ArgTypes...)>* __p) const
1383 ::new (__p) __func(__f_.first(), __f_.second());
1386 template<class _Fp, class _Alloc, class _Rp, class ..._ArgTypes>
1388 __func<_Fp, _Alloc, _Rp(_ArgTypes...)>::destroy() _NOEXCEPT
1390 __f_.~__compressed_pair<_Fp, _Alloc>();
1393 template<class _Fp, class _Alloc, class _Rp, class ..._ArgTypes>
1395 __func<_Fp, _Alloc, _Rp(_ArgTypes...)>::destroy_deallocate() _NOEXCEPT
1397 typedef allocator_traits<_Alloc> __alloc_traits;
1398 typedef typename __rebind_alloc_helper<__alloc_traits, __func>::type _Ap;
1399 _Ap __a(__f_.second());
1400 __f_.~__compressed_pair<_Fp, _Alloc>();
1401 __a.deallocate(this, 1);
1404 template<class _Fp, class _Alloc, class _Rp, class ..._ArgTypes>
1406 __func<_Fp, _Alloc, _Rp(_ArgTypes...)>::operator()(_ArgTypes&& ... __arg)
1408 typedef __invoke_void_return_wrapper<_Rp> _Invoker;
1409 return _Invoker::__call(__f_.first(), _VSTD::forward<_ArgTypes>(__arg)...);
1412 #ifndef _LIBCPP_NO_RTTI
1414 template<class _Fp, class _Alloc, class _Rp, class ..._ArgTypes>
1416 __func<_Fp, _Alloc, _Rp(_ArgTypes...)>::target(const type_info& __ti) const _NOEXCEPT
1418 if (__ti == typeid(_Fp))
1419 return &__f_.first();
1420 return (const void*)0;
1423 template<class _Fp, class _Alloc, class _Rp, class ..._ArgTypes>
1424 const std::type_info&
1425 __func<_Fp, _Alloc, _Rp(_ArgTypes...)>::target_type() const _NOEXCEPT
1430 #endif // _LIBCPP_NO_RTTI
1434 template<class _Rp, class ..._ArgTypes>
1435 class _LIBCPP_TYPE_VIS_ONLY function<_Rp(_ArgTypes...)>
1436 : public __function::__maybe_derive_from_unary_function<_Rp(_ArgTypes...)>,
1437 public __function::__maybe_derive_from_binary_function<_Rp(_ArgTypes...)>
1439 typedef __function::__base<_Rp(_ArgTypes...)> __base;
1440 typename aligned_storage<3*sizeof(void*)>::type __buf_;
1443 template <class _Fp>
1444 _LIBCPP_INLINE_VISIBILITY
1445 static bool __not_null(const _Fp&) {return true;}
1446 template <class _R2, class ..._Ap>
1447 _LIBCPP_INLINE_VISIBILITY
1448 static bool __not_null(_R2 (*__p)(_Ap...)) {return __p;}
1449 template <class _R2, class _Cp, class ..._Ap>
1450 _LIBCPP_INLINE_VISIBILITY
1451 static bool __not_null(_R2 (_Cp::*__p)(_Ap...)) {return __p;}
1452 template <class _R2, class _Cp, class ..._Ap>
1453 _LIBCPP_INLINE_VISIBILITY
1454 static bool __not_null(_R2 (_Cp::*__p)(_Ap...) const) {return __p;}
1455 template <class _R2, class _Cp, class ..._Ap>
1456 _LIBCPP_INLINE_VISIBILITY
1457 static bool __not_null(_R2 (_Cp::*__p)(_Ap...) volatile) {return __p;}
1458 template <class _R2, class _Cp, class ..._Ap>
1459 _LIBCPP_INLINE_VISIBILITY
1460 static bool __not_null(_R2 (_Cp::*__p)(_Ap...) const volatile) {return __p;}
1461 template <class _R2, class ..._Ap>
1462 _LIBCPP_INLINE_VISIBILITY
1463 static bool __not_null(const function<_R2(_Ap...)>& __p) {return !!__p;}
1465 template <class _Fp, bool = !is_same<_Fp, function>::value &&
1466 __invokable<_Fp&, _ArgTypes...>::value>
1468 template <class _Fp>
1469 struct __callable<_Fp, true>
1471 static const bool value = is_same<void, _Rp>::value ||
1472 is_convertible<typename __invoke_of<_Fp&, _ArgTypes...>::type,
1475 template <class _Fp>
1476 struct __callable<_Fp, false>
1478 static const bool value = false;
1481 typedef _Rp result_type;
1483 // construct/copy/destroy:
1484 _LIBCPP_INLINE_VISIBILITY
1485 function() _NOEXCEPT : __f_(0) {}
1486 _LIBCPP_INLINE_VISIBILITY
1487 function(nullptr_t) _NOEXCEPT : __f_(0) {}
1488 function(const function&);
1489 function(function&&) _NOEXCEPT;
1491 function(_Fp, typename enable_if
1493 __callable<_Fp>::value &&
1494 !is_same<_Fp, function>::value
1497 template<class _Alloc>
1498 _LIBCPP_INLINE_VISIBILITY
1499 function(allocator_arg_t, const _Alloc&) _NOEXCEPT : __f_(0) {}
1500 template<class _Alloc>
1501 _LIBCPP_INLINE_VISIBILITY
1502 function(allocator_arg_t, const _Alloc&, nullptr_t) _NOEXCEPT : __f_(0) {}
1503 template<class _Alloc>
1504 function(allocator_arg_t, const _Alloc&, const function&);
1505 template<class _Alloc>
1506 function(allocator_arg_t, const _Alloc&, function&&);
1507 template<class _Fp, class _Alloc>
1508 function(allocator_arg_t, const _Alloc& __a, _Fp __f,
1509 typename enable_if<__callable<_Fp>::value>::type* = 0);
1511 function& operator=(const function&);
1512 function& operator=(function&&) _NOEXCEPT;
1513 function& operator=(nullptr_t) _NOEXCEPT;
1517 __callable<typename decay<_Fp>::type>::value &&
1518 !is_same<typename remove_reference<_Fp>::type, function>::value,
1525 // function modifiers:
1526 void swap(function&) _NOEXCEPT;
1527 template<class _Fp, class _Alloc>
1528 _LIBCPP_INLINE_VISIBILITY
1529 void assign(_Fp&& __f, const _Alloc& __a)
1530 {function(allocator_arg, __a, _VSTD::forward<_Fp>(__f)).swap(*this);}
1532 // function capacity:
1533 _LIBCPP_INLINE_VISIBILITY
1534 _LIBCPP_EXPLICIT operator bool() const _NOEXCEPT {return __f_;}
1536 // deleted overloads close possible hole in the type system
1537 template<class _R2, class... _ArgTypes2>
1538 bool operator==(const function<_R2(_ArgTypes2...)>&) const = delete;
1539 template<class _R2, class... _ArgTypes2>
1540 bool operator!=(const function<_R2(_ArgTypes2...)>&) const = delete;
1542 // function invocation:
1543 _Rp operator()(_ArgTypes...) const;
1545 #ifndef _LIBCPP_NO_RTTI
1546 // function target access:
1547 const std::type_info& target_type() const _NOEXCEPT;
1548 template <typename _Tp> _Tp* target() _NOEXCEPT;
1549 template <typename _Tp> const _Tp* target() const _NOEXCEPT;
1550 #endif // _LIBCPP_NO_RTTI
1553 template<class _Rp, class ..._ArgTypes>
1554 function<_Rp(_ArgTypes...)>::function(const function& __f)
1558 else if (__f.__f_ == (const __base*)&__f.__buf_)
1560 __f_ = (__base*)&__buf_;
1561 __f.__f_->__clone(__f_);
1564 __f_ = __f.__f_->__clone();
1567 template<class _Rp, class ..._ArgTypes>
1568 template <class _Alloc>
1569 function<_Rp(_ArgTypes...)>::function(allocator_arg_t, const _Alloc&,
1570 const function& __f)
1574 else if (__f.__f_ == (const __base*)&__f.__buf_)
1576 __f_ = (__base*)&__buf_;
1577 __f.__f_->__clone(__f_);
1580 __f_ = __f.__f_->__clone();
1583 template<class _Rp, class ..._ArgTypes>
1584 function<_Rp(_ArgTypes...)>::function(function&& __f) _NOEXCEPT
1588 else if (__f.__f_ == (__base*)&__f.__buf_)
1590 __f_ = (__base*)&__buf_;
1591 __f.__f_->__clone(__f_);
1600 template<class _Rp, class ..._ArgTypes>
1601 template <class _Alloc>
1602 function<_Rp(_ArgTypes...)>::function(allocator_arg_t, const _Alloc&,
1607 else if (__f.__f_ == (__base*)&__f.__buf_)
1609 __f_ = (__base*)&__buf_;
1610 __f.__f_->__clone(__f_);
1619 template<class _Rp, class ..._ArgTypes>
1620 template <class _Fp>
1621 function<_Rp(_ArgTypes...)>::function(_Fp __f,
1624 __callable<_Fp>::value &&
1625 !is_same<_Fp, function>::value
1629 if (__not_null(__f))
1631 typedef __function::__func<_Fp, allocator<_Fp>, _Rp(_ArgTypes...)> _FF;
1632 if (sizeof(_FF) <= sizeof(__buf_) && is_nothrow_copy_constructible<_Fp>::value)
1634 __f_ = (__base*)&__buf_;
1635 ::new (__f_) _FF(_VSTD::move(__f));
1639 typedef allocator<_FF> _Ap;
1641 typedef __allocator_destructor<_Ap> _Dp;
1642 unique_ptr<__base, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
1643 ::new (__hold.get()) _FF(_VSTD::move(__f), allocator<_Fp>(__a));
1644 __f_ = __hold.release();
1649 template<class _Rp, class ..._ArgTypes>
1650 template <class _Fp, class _Alloc>
1651 function<_Rp(_ArgTypes...)>::function(allocator_arg_t, const _Alloc& __a0, _Fp __f,
1652 typename enable_if<__callable<_Fp>::value>::type*)
1655 typedef allocator_traits<_Alloc> __alloc_traits;
1656 if (__not_null(__f))
1658 typedef __function::__func<_Fp, _Alloc, _Rp(_ArgTypes...)> _FF;
1659 typedef typename __rebind_alloc_helper<__alloc_traits, _FF>::type _Ap;
1661 if (sizeof(_FF) <= sizeof(__buf_) &&
1662 is_nothrow_copy_constructible<_Fp>::value && is_nothrow_copy_constructible<_Ap>::value)
1664 __f_ = (__base*)&__buf_;
1665 ::new (__f_) _FF(_VSTD::move(__f), _Alloc(__a));
1669 typedef __allocator_destructor<_Ap> _Dp;
1670 unique_ptr<__base, _Dp> __hold(__a.allocate(1), _Dp(__a, 1));
1671 ::new (__hold.get()) _FF(_VSTD::move(__f), _Alloc(__a));
1672 __f_ = __hold.release();
1677 template<class _Rp, class ..._ArgTypes>
1678 function<_Rp(_ArgTypes...)>&
1679 function<_Rp(_ArgTypes...)>::operator=(const function& __f)
1681 function(__f).swap(*this);
1685 template<class _Rp, class ..._ArgTypes>
1686 function<_Rp(_ArgTypes...)>&
1687 function<_Rp(_ArgTypes...)>::operator=(function&& __f) _NOEXCEPT
1689 if (__f_ == (__base*)&__buf_)
1692 __f_->destroy_deallocate();
1696 else if (__f.__f_ == (__base*)&__f.__buf_)
1698 __f_ = (__base*)&__buf_;
1699 __f.__f_->__clone(__f_);
1709 template<class _Rp, class ..._ArgTypes>
1710 function<_Rp(_ArgTypes...)>&
1711 function<_Rp(_ArgTypes...)>::operator=(nullptr_t) _NOEXCEPT
1713 if (__f_ == (__base*)&__buf_)
1716 __f_->destroy_deallocate();
1721 template<class _Rp, class ..._ArgTypes>
1722 template <class _Fp>
1725 function<_Rp(_ArgTypes...)>::template __callable<typename decay<_Fp>::type>::value &&
1726 !is_same<typename remove_reference<_Fp>::type, function<_Rp(_ArgTypes...)>>::value,
1727 function<_Rp(_ArgTypes...)>&
1729 function<_Rp(_ArgTypes...)>::operator=(_Fp&& __f)
1731 function(_VSTD::forward<_Fp>(__f)).swap(*this);
1735 template<class _Rp, class ..._ArgTypes>
1736 function<_Rp(_ArgTypes...)>::~function()
1738 if (__f_ == (__base*)&__buf_)
1741 __f_->destroy_deallocate();
1744 template<class _Rp, class ..._ArgTypes>
1746 function<_Rp(_ArgTypes...)>::swap(function& __f) _NOEXCEPT
1748 if (__f_ == (__base*)&__buf_ && __f.__f_ == (__base*)&__f.__buf_)
1750 typename aligned_storage<sizeof(__buf_)>::type __tempbuf;
1751 __base* __t = (__base*)&__tempbuf;
1755 __f.__f_->__clone((__base*)&__buf_);
1756 __f.__f_->destroy();
1758 __f_ = (__base*)&__buf_;
1759 __t->__clone((__base*)&__f.__buf_);
1761 __f.__f_ = (__base*)&__f.__buf_;
1763 else if (__f_ == (__base*)&__buf_)
1765 __f_->__clone((__base*)&__f.__buf_);
1768 __f.__f_ = (__base*)&__f.__buf_;
1770 else if (__f.__f_ == (__base*)&__f.__buf_)
1772 __f.__f_->__clone((__base*)&__buf_);
1773 __f.__f_->destroy();
1775 __f_ = (__base*)&__buf_;
1778 _VSTD::swap(__f_, __f.__f_);
1781 template<class _Rp, class ..._ArgTypes>
1783 function<_Rp(_ArgTypes...)>::operator()(_ArgTypes... __arg) const
1785 #ifndef _LIBCPP_NO_EXCEPTIONS
1787 throw bad_function_call();
1788 #endif // _LIBCPP_NO_EXCEPTIONS
1789 return (*__f_)(_VSTD::forward<_ArgTypes>(__arg)...);
1792 #ifndef _LIBCPP_NO_RTTI
1794 template<class _Rp, class ..._ArgTypes>
1795 const std::type_info&
1796 function<_Rp(_ArgTypes...)>::target_type() const _NOEXCEPT
1799 return typeid(void);
1800 return __f_->target_type();
1803 template<class _Rp, class ..._ArgTypes>
1804 template <typename _Tp>
1806 function<_Rp(_ArgTypes...)>::target() _NOEXCEPT
1810 return (_Tp*)__f_->target(typeid(_Tp));
1813 template<class _Rp, class ..._ArgTypes>
1814 template <typename _Tp>
1816 function<_Rp(_ArgTypes...)>::target() const _NOEXCEPT
1819 return (const _Tp*)0;
1820 return (const _Tp*)__f_->target(typeid(_Tp));
1823 #endif // _LIBCPP_NO_RTTI
1825 template <class _Rp, class... _ArgTypes>
1826 inline _LIBCPP_INLINE_VISIBILITY
1828 operator==(const function<_Rp(_ArgTypes...)>& __f, nullptr_t) _NOEXCEPT {return !__f;}
1830 template <class _Rp, class... _ArgTypes>
1831 inline _LIBCPP_INLINE_VISIBILITY
1833 operator==(nullptr_t, const function<_Rp(_ArgTypes...)>& __f) _NOEXCEPT {return !__f;}
1835 template <class _Rp, class... _ArgTypes>
1836 inline _LIBCPP_INLINE_VISIBILITY
1838 operator!=(const function<_Rp(_ArgTypes...)>& __f, nullptr_t) _NOEXCEPT {return (bool)__f;}
1840 template <class _Rp, class... _ArgTypes>
1841 inline _LIBCPP_INLINE_VISIBILITY
1843 operator!=(nullptr_t, const function<_Rp(_ArgTypes...)>& __f) _NOEXCEPT {return (bool)__f;}
1845 template <class _Rp, class... _ArgTypes>
1846 inline _LIBCPP_INLINE_VISIBILITY
1848 swap(function<_Rp(_ArgTypes...)>& __x, function<_Rp(_ArgTypes...)>& __y) _NOEXCEPT
1849 {return __x.swap(__y);}
1851 template<class _Tp> struct __is_bind_expression : public false_type {};
1852 template<class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_bind_expression
1853 : public __is_bind_expression<typename remove_cv<_Tp>::type> {};
1855 template<class _Tp> struct __is_placeholder : public integral_constant<int, 0> {};
1856 template<class _Tp> struct _LIBCPP_TYPE_VIS_ONLY is_placeholder
1857 : public __is_placeholder<typename remove_cv<_Tp>::type> {};
1859 namespace placeholders
1862 template <int _Np> struct __ph {};
1864 _LIBCPP_FUNC_VIS extern __ph<1> _1;
1865 _LIBCPP_FUNC_VIS extern __ph<2> _2;
1866 _LIBCPP_FUNC_VIS extern __ph<3> _3;
1867 _LIBCPP_FUNC_VIS extern __ph<4> _4;
1868 _LIBCPP_FUNC_VIS extern __ph<5> _5;
1869 _LIBCPP_FUNC_VIS extern __ph<6> _6;
1870 _LIBCPP_FUNC_VIS extern __ph<7> _7;
1871 _LIBCPP_FUNC_VIS extern __ph<8> _8;
1872 _LIBCPP_FUNC_VIS extern __ph<9> _9;
1873 _LIBCPP_FUNC_VIS extern __ph<10> _10;
1878 struct __is_placeholder<placeholders::__ph<_Np> >
1879 : public integral_constant<int, _Np> {};
1881 template <class _Tp, class _Uj>
1882 inline _LIBCPP_INLINE_VISIBILITY
1884 __mu(reference_wrapper<_Tp> __t, _Uj&)
1889 template <class _Ti, class ..._Uj, size_t ..._Indx>
1890 inline _LIBCPP_INLINE_VISIBILITY
1891 typename __invoke_of<_Ti&, _Uj...>::type
1892 __mu_expand(_Ti& __ti, tuple<_Uj...>& __uj, __tuple_indices<_Indx...>)
1894 return __ti(_VSTD::forward<_Uj>(_VSTD::get<_Indx>(__uj))...);
1897 template <class _Ti, class ..._Uj>
1898 inline _LIBCPP_INLINE_VISIBILITY
1899 typename __lazy_enable_if
1901 is_bind_expression<_Ti>::value,
1902 __invoke_of<_Ti&, _Uj...>
1904 __mu(_Ti& __ti, tuple<_Uj...>& __uj)
1906 typedef typename __make_tuple_indices<sizeof...(_Uj)>::type __indices;
1907 return __mu_expand(__ti, __uj, __indices());
1910 template <bool IsPh, class _Ti, class _Uj>
1911 struct __mu_return2 {};
1913 template <class _Ti, class _Uj>
1914 struct __mu_return2<true, _Ti, _Uj>
1916 typedef typename tuple_element<is_placeholder<_Ti>::value - 1, _Uj>::type type;
1919 template <class _Ti, class _Uj>
1920 inline _LIBCPP_INLINE_VISIBILITY
1923 0 < is_placeholder<_Ti>::value,
1924 typename __mu_return2<0 < is_placeholder<_Ti>::value, _Ti, _Uj>::type
1926 __mu(_Ti&, _Uj& __uj)
1928 const size_t _Indx = is_placeholder<_Ti>::value - 1;
1929 return _VSTD::forward<typename tuple_element<_Indx, _Uj>::type>(_VSTD::get<_Indx>(__uj));
1932 template <class _Ti, class _Uj>
1933 inline _LIBCPP_INLINE_VISIBILITY
1936 !is_bind_expression<_Ti>::value &&
1937 is_placeholder<_Ti>::value == 0 &&
1938 !__is_reference_wrapper<_Ti>::value,
1941 __mu(_Ti& __ti, _Uj&)
1946 template <class _Ti, bool IsReferenceWrapper, bool IsBindEx, bool IsPh,
1948 struct ____mu_return;
1950 template <bool _Invokable, class _Ti, class ..._Uj>
1951 struct ____mu_return_invokable // false
1956 template <class _Ti, class ..._Uj>
1957 struct ____mu_return_invokable<true, _Ti, _Uj...>
1959 typedef typename __invoke_of<_Ti&, _Uj...>::type type;
1962 template <class _Ti, class ..._Uj>
1963 struct ____mu_return<_Ti, false, true, false, tuple<_Uj...> >
1964 : public ____mu_return_invokable<__invokable<_Ti&, _Uj...>::value, _Ti, _Uj...>
1968 template <class _Ti, class _TupleUj>
1969 struct ____mu_return<_Ti, false, false, true, _TupleUj>
1971 typedef typename tuple_element<is_placeholder<_Ti>::value - 1,
1972 _TupleUj>::type&& type;
1975 template <class _Ti, class _TupleUj>
1976 struct ____mu_return<_Ti, true, false, false, _TupleUj>
1978 typedef typename _Ti::type& type;
1981 template <class _Ti, class _TupleUj>
1982 struct ____mu_return<_Ti, false, false, false, _TupleUj>
1987 template <class _Ti, class _TupleUj>
1989 : public ____mu_return<_Ti,
1990 __is_reference_wrapper<_Ti>::value,
1991 is_bind_expression<_Ti>::value,
1992 0 < is_placeholder<_Ti>::value &&
1993 is_placeholder<_Ti>::value <= tuple_size<_TupleUj>::value,
1998 template <class _Fp, class _BoundArgs, class _TupleUj>
1999 struct __is_valid_bind_return
2001 static const bool value = false;
2004 template <class _Fp, class ..._BoundArgs, class _TupleUj>
2005 struct __is_valid_bind_return<_Fp, tuple<_BoundArgs...>, _TupleUj>
2007 static const bool value = __invokable<_Fp,
2008 typename __mu_return<_BoundArgs, _TupleUj>::type...>::value;
2011 template <class _Fp, class ..._BoundArgs, class _TupleUj>
2012 struct __is_valid_bind_return<_Fp, const tuple<_BoundArgs...>, _TupleUj>
2014 static const bool value = __invokable<_Fp,
2015 typename __mu_return<const _BoundArgs, _TupleUj>::type...>::value;
2018 template <class _Fp, class _BoundArgs, class _TupleUj,
2019 bool = __is_valid_bind_return<_Fp, _BoundArgs, _TupleUj>::value>
2020 struct __bind_return;
2022 template <class _Fp, class ..._BoundArgs, class _TupleUj>
2023 struct __bind_return<_Fp, tuple<_BoundArgs...>, _TupleUj, true>
2025 typedef typename __invoke_of
2028 typename __mu_return
2036 template <class _Fp, class ..._BoundArgs, class _TupleUj>
2037 struct __bind_return<_Fp, const tuple<_BoundArgs...>, _TupleUj, true>
2039 typedef typename __invoke_of
2042 typename __mu_return
2050 template <class _Fp, class _BoundArgs, size_t ..._Indx, class _Args>
2051 inline _LIBCPP_INLINE_VISIBILITY
2052 typename __bind_return<_Fp, _BoundArgs, _Args>::type
2053 __apply_functor(_Fp& __f, _BoundArgs& __bound_args, __tuple_indices<_Indx...>,
2056 return __invoke(__f, __mu(_VSTD::get<_Indx>(__bound_args), __args)...);
2059 template<class _Fp, class ..._BoundArgs>
2061 : public __weak_result_type<typename decay<_Fp>::type>
2064 typedef typename decay<_Fp>::type _Fd;
2065 typedef tuple<typename decay<_BoundArgs>::type...> _Td;
2070 typedef typename __make_tuple_indices<sizeof...(_BoundArgs)>::type __indices;
2072 #ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2074 _LIBCPP_INLINE_VISIBILITY
2075 __bind(const __bind& __b)
2077 __bound_args_(__b.__bound_args_) {}
2079 _LIBCPP_INLINE_VISIBILITY
2080 __bind& operator=(const __bind& __b)
2083 __bound_args_ = __b.__bound_args_;
2087 _LIBCPP_INLINE_VISIBILITY
2088 __bind(__bind&& __b)
2089 : __f_(_VSTD::move(__b.__f_)),
2090 __bound_args_(_VSTD::move(__b.__bound_args_)) {}
2092 _LIBCPP_INLINE_VISIBILITY
2093 __bind& operator=(__bind&& __b)
2095 __f_ = _VSTD::move(__b.__f_);
2096 __bound_args_ = _VSTD::move(__b.__bound_args_);
2100 #endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2102 template <class _Gp, class ..._BA,
2103 class = typename enable_if
2105 is_constructible<_Fd, _Gp>::value &&
2106 !is_same<typename remove_reference<_Gp>::type,
2109 _LIBCPP_INLINE_VISIBILITY
2110 explicit __bind(_Gp&& __f, _BA&& ...__bound_args)
2111 : __f_(_VSTD::forward<_Gp>(__f)),
2112 __bound_args_(_VSTD::forward<_BA>(__bound_args)...) {}
2114 template <class ..._Args>
2115 _LIBCPP_INLINE_VISIBILITY
2116 typename __bind_return<_Fd, _Td, tuple<_Args&&...> >::type
2117 operator()(_Args&& ...__args)
2119 return __apply_functor(__f_, __bound_args_, __indices(),
2120 tuple<_Args&&...>(_VSTD::forward<_Args>(__args)...));
2123 template <class ..._Args>
2124 _LIBCPP_INLINE_VISIBILITY
2125 typename __bind_return<const _Fd, const _Td, tuple<_Args&&...> >::type
2126 operator()(_Args&& ...__args) const
2128 return __apply_functor(__f_, __bound_args_, __indices(),
2129 tuple<_Args&&...>(_VSTD::forward<_Args>(__args)...));
2133 template<class _Fp, class ..._BoundArgs>
2134 struct __is_bind_expression<__bind<_Fp, _BoundArgs...> > : public true_type {};
2136 template<class _Rp, class _Fp, class ..._BoundArgs>
2138 : public __bind<_Fp, _BoundArgs...>
2140 typedef __bind<_Fp, _BoundArgs...> base;
2141 typedef typename base::_Fd _Fd;
2142 typedef typename base::_Td _Td;
2144 typedef _Rp result_type;
2146 #ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2148 _LIBCPP_INLINE_VISIBILITY
2149 __bind_r(const __bind_r& __b)
2150 : base(_VSTD::forward<const base&>(__b)) {}
2152 _LIBCPP_INLINE_VISIBILITY
2153 __bind_r& operator=(const __bind_r& __b)
2155 base::operator=(_VSTD::forward<const base&>(__b));
2159 _LIBCPP_INLINE_VISIBILITY
2160 __bind_r(__bind_r&& __b)
2161 : base(_VSTD::forward<base>(__b)) {}
2163 _LIBCPP_INLINE_VISIBILITY
2164 __bind_r& operator=(__bind_r&& __b)
2166 base::operator=(_VSTD::forward<base>(__b));
2170 #endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2172 template <class _Gp, class ..._BA,
2173 class = typename enable_if
2175 is_constructible<_Fd, _Gp>::value &&
2176 !is_same<typename remove_reference<_Gp>::type,
2179 _LIBCPP_INLINE_VISIBILITY
2180 explicit __bind_r(_Gp&& __f, _BA&& ...__bound_args)
2181 : base(_VSTD::forward<_Gp>(__f),
2182 _VSTD::forward<_BA>(__bound_args)...) {}
2184 template <class ..._Args>
2185 _LIBCPP_INLINE_VISIBILITY
2188 is_convertible<typename __bind_return<_Fd, _Td, tuple<_Args&&...> >::type,
2189 result_type>::value || is_void<_Rp>::value,
2192 operator()(_Args&& ...__args)
2194 typedef __invoke_void_return_wrapper<_Rp> _Invoker;
2195 return _Invoker::__call(static_cast<base&>(*this), _VSTD::forward<_Args>(__args)...);
2198 template <class ..._Args>
2199 _LIBCPP_INLINE_VISIBILITY
2202 is_convertible<typename __bind_return<const _Fd, const _Td, tuple<_Args&&...> >::type,
2203 result_type>::value || is_void<_Rp>::value,
2206 operator()(_Args&& ...__args) const
2208 typedef __invoke_void_return_wrapper<_Rp> _Invoker;
2209 return _Invoker::__call(static_cast<base const&>(*this), _VSTD::forward<_Args>(__args)...);
2213 template<class _Rp, class _Fp, class ..._BoundArgs>
2214 struct __is_bind_expression<__bind_r<_Rp, _Fp, _BoundArgs...> > : public true_type {};
2216 template<class _Fp, class ..._BoundArgs>
2217 inline _LIBCPP_INLINE_VISIBILITY
2218 __bind<_Fp, _BoundArgs...>
2219 bind(_Fp&& __f, _BoundArgs&&... __bound_args)
2221 typedef __bind<_Fp, _BoundArgs...> type;
2222 return type(_VSTD::forward<_Fp>(__f), _VSTD::forward<_BoundArgs>(__bound_args)...);
2225 template<class _Rp, class _Fp, class ..._BoundArgs>
2226 inline _LIBCPP_INLINE_VISIBILITY
2227 __bind_r<_Rp, _Fp, _BoundArgs...>
2228 bind(_Fp&& __f, _BoundArgs&&... __bound_args)
2230 typedef __bind_r<_Rp, _Fp, _BoundArgs...> type;
2231 return type(_VSTD::forward<_Fp>(__f), _VSTD::forward<_BoundArgs>(__bound_args)...);
2234 #endif // _LIBCPP_HAS_NO_VARIADICS
2237 struct _LIBCPP_TYPE_VIS_ONLY hash<bool>
2238 : public unary_function<bool, size_t>
2240 _LIBCPP_INLINE_VISIBILITY
2241 size_t operator()(bool __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
2245 struct _LIBCPP_TYPE_VIS_ONLY hash<char>
2246 : public unary_function<char, size_t>
2248 _LIBCPP_INLINE_VISIBILITY
2249 size_t operator()(char __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
2253 struct _LIBCPP_TYPE_VIS_ONLY hash<signed char>
2254 : public unary_function<signed char, size_t>
2256 _LIBCPP_INLINE_VISIBILITY
2257 size_t operator()(signed char __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
2261 struct _LIBCPP_TYPE_VIS_ONLY hash<unsigned char>
2262 : public unary_function<unsigned char, size_t>
2264 _LIBCPP_INLINE_VISIBILITY
2265 size_t operator()(unsigned char __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
2268 #ifndef _LIBCPP_HAS_NO_UNICODE_CHARS
2271 struct _LIBCPP_TYPE_VIS_ONLY hash<char16_t>
2272 : public unary_function<char16_t, size_t>
2274 _LIBCPP_INLINE_VISIBILITY
2275 size_t operator()(char16_t __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
2279 struct _LIBCPP_TYPE_VIS_ONLY hash<char32_t>
2280 : public unary_function<char32_t, size_t>
2282 _LIBCPP_INLINE_VISIBILITY
2283 size_t operator()(char32_t __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
2286 #endif // _LIBCPP_HAS_NO_UNICODE_CHARS
2289 struct _LIBCPP_TYPE_VIS_ONLY hash<wchar_t>
2290 : public unary_function<wchar_t, size_t>
2292 _LIBCPP_INLINE_VISIBILITY
2293 size_t operator()(wchar_t __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
2297 struct _LIBCPP_TYPE_VIS_ONLY hash<short>
2298 : public unary_function<short, size_t>
2300 _LIBCPP_INLINE_VISIBILITY
2301 size_t operator()(short __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
2305 struct _LIBCPP_TYPE_VIS_ONLY hash<unsigned short>
2306 : public unary_function<unsigned short, size_t>
2308 _LIBCPP_INLINE_VISIBILITY
2309 size_t operator()(unsigned short __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
2313 struct _LIBCPP_TYPE_VIS_ONLY hash<int>
2314 : public unary_function<int, size_t>
2316 _LIBCPP_INLINE_VISIBILITY
2317 size_t operator()(int __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
2321 struct _LIBCPP_TYPE_VIS_ONLY hash<unsigned int>
2322 : public unary_function<unsigned int, size_t>
2324 _LIBCPP_INLINE_VISIBILITY
2325 size_t operator()(unsigned int __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
2329 struct _LIBCPP_TYPE_VIS_ONLY hash<long>
2330 : public unary_function<long, size_t>
2332 _LIBCPP_INLINE_VISIBILITY
2333 size_t operator()(long __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
2337 struct _LIBCPP_TYPE_VIS_ONLY hash<unsigned long>
2338 : public unary_function<unsigned long, size_t>
2340 _LIBCPP_INLINE_VISIBILITY
2341 size_t operator()(unsigned long __v) const _NOEXCEPT {return static_cast<size_t>(__v);}
2345 struct _LIBCPP_TYPE_VIS_ONLY hash<long long>
2346 : public __scalar_hash<long long>
2351 struct _LIBCPP_TYPE_VIS_ONLY hash<unsigned long long>
2352 : public __scalar_hash<unsigned long long>
2357 struct _LIBCPP_TYPE_VIS_ONLY hash<float>
2358 : public __scalar_hash<float>
2360 _LIBCPP_INLINE_VISIBILITY
2361 size_t operator()(float __v) const _NOEXCEPT
2363 // -0.0 and 0.0 should return same hash
2366 return __scalar_hash<float>::operator()(__v);
2371 struct _LIBCPP_TYPE_VIS_ONLY hash<double>
2372 : public __scalar_hash<double>
2374 _LIBCPP_INLINE_VISIBILITY
2375 size_t operator()(double __v) const _NOEXCEPT
2377 // -0.0 and 0.0 should return same hash
2380 return __scalar_hash<double>::operator()(__v);
2385 struct _LIBCPP_TYPE_VIS_ONLY hash<long double>
2386 : public __scalar_hash<long double>
2388 _LIBCPP_INLINE_VISIBILITY
2389 size_t operator()(long double __v) const _NOEXCEPT
2391 // -0.0 and 0.0 should return same hash
2394 #if defined(__i386__)
2395 // Zero out padding bits
2412 return __u.__s.__a ^ __u.__s.__b ^ __u.__s.__c ^ __u.__s.__d;
2413 #elif defined(__x86_64__)
2414 // Zero out padding bits
2427 return __u.__s.__a ^ __u.__s.__b;
2429 return __scalar_hash<long double>::operator()(__v);
2434 #if _LIBCPP_STD_VER > 11
2435 template <class _Tp>
2436 struct _LIBCPP_TYPE_VIS_ONLY hash
2437 : public unary_function<_Tp, size_t>
2439 static_assert(is_enum<_Tp>::value, "This hash only works for enumeration types");
2441 _LIBCPP_INLINE_VISIBILITY
2442 size_t operator()(_Tp __v) const _NOEXCEPT
2444 typedef typename underlying_type<_Tp>::type type;
2445 return hash<type>{}(static_cast<type>(__v));
2451 #if _LIBCPP_STD_VER > 14
2452 template <class _Fn, class ..._Args>
2453 result_of_t<_Fn&&(_Args&&...)>
2454 invoke(_Fn&& __f, _Args&&... __args) {
2455 return __invoke(_VSTD::forward<_Fn>(__f), _VSTD::forward<_Args>(__args)...);
2459 // struct hash<T*> in <memory>
2461 _LIBCPP_END_NAMESPACE_STD
2463 #endif // _LIBCPP_FUNCTIONAL