2 //===-------------------------- memory ------------------------------------===//
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_MEMORY
12 #define _LIBCPP_MEMORY
20 struct allocator_arg_t { };
21 constexpr allocator_arg_t allocator_arg = allocator_arg_t();
23 template <class T, class Alloc> struct uses_allocator;
29 typedef <details> element_type;
30 typedef <details> difference_type;
32 template <class U> using rebind = <details>;
34 static pointer pointer_to(<details>);
38 struct pointer_traits<T*>
41 typedef T element_type;
42 typedef ptrdiff_t difference_type;
44 template <class U> using rebind = U*;
46 static pointer pointer_to(<details>) noexcept;
49 template <class Alloc>
50 struct allocator_traits
52 typedef Alloc allocator_type;
53 typedef typename allocator_type::value_type
56 typedef Alloc::pointer | value_type* pointer;
57 typedef Alloc::const_pointer
58 | pointer_traits<pointer>::rebind<const value_type>
60 typedef Alloc::void_pointer
61 | pointer_traits<pointer>::rebind<void>
63 typedef Alloc::const_void_pointer
64 | pointer_traits<pointer>::rebind<const void>
66 typedef Alloc::difference_type
67 | pointer_traits<pointer>::difference_type
69 typedef Alloc::size_type
70 | make_unsigned<difference_type>::type
72 typedef Alloc::propagate_on_container_copy_assignment
73 | false_type propagate_on_container_copy_assignment;
74 typedef Alloc::propagate_on_container_move_assignment
75 | false_type propagate_on_container_move_assignment;
76 typedef Alloc::propagate_on_container_swap
77 | false_type propagate_on_container_swap;
79 template <class T> using rebind_alloc = Alloc::rebind<U>::other | Alloc<T, Args...>;
80 template <class T> using rebind_traits = allocator_traits<rebind_alloc<T>>;
82 static pointer allocate(allocator_type& a, size_type n);
83 static pointer allocate(allocator_type& a, size_type n, const_void_pointer hint);
85 static void deallocate(allocator_type& a, pointer p, size_type n) noexcept;
87 template <class T, class... Args>
88 static void construct(allocator_type& a, T* p, Args&&... args);
91 static void destroy(allocator_type& a, T* p);
93 static size_type max_size(const allocator_type& a);
96 select_on_container_copy_construction(const allocator_type& a);
100 class allocator<void>
103 typedef void* pointer;
104 typedef const void* const_pointer;
105 typedef void value_type;
107 template <class _Up> struct rebind {typedef allocator<_Up> other;};
114 typedef size_t size_type;
115 typedef ptrdiff_t difference_type;
117 typedef const T* const_pointer;
118 typedef typename add_lvalue_reference<T>::type reference;
119 typedef typename add_lvalue_reference<const T>::type const_reference;
120 typedef T value_type;
122 template <class U> struct rebind {typedef allocator<U> other;};
124 allocator() noexcept;
125 allocator(const allocator&) noexcept;
126 template <class U> allocator(const allocator<U>&) noexcept;
128 pointer address(reference x) const noexcept;
129 const_pointer address(const_reference x) const noexcept;
130 pointer allocate(size_type, allocator<void>::const_pointer hint = 0);
131 void deallocate(pointer p, size_type n) noexcept;
132 size_type max_size() const noexcept;
133 template<class U, class... Args>
134 void construct(U* p, Args&&... args);
139 template <class T, class U>
140 bool operator==(const allocator<T>&, const allocator<U>&) noexcept;
142 template <class T, class U>
143 bool operator!=(const allocator<T>&, const allocator<U>&) noexcept;
145 template <class OutputIterator, class T>
146 class raw_storage_iterator
147 : public iterator<output_iterator_tag,
148 T, // purposefully not C++03
149 ptrdiff_t, // purposefully not C++03
150 T*, // purposefully not C++03
151 raw_storage_iterator&> // purposefully not C++03
154 explicit raw_storage_iterator(OutputIterator x);
155 raw_storage_iterator& operator*();
156 raw_storage_iterator& operator=(const T& element);
157 raw_storage_iterator& operator++();
158 raw_storage_iterator operator++(int);
161 template <class T> pair<T*,ptrdiff_t> get_temporary_buffer(ptrdiff_t n) noexcept;
162 template <class T> void return_temporary_buffer(T* p) noexcept;
164 template <class T> T* addressof(T& r) noexcept;
166 template <class InputIterator, class ForwardIterator>
168 uninitialized_copy(InputIterator first, InputIterator last, ForwardIterator result);
170 template <class InputIterator, class Size, class ForwardIterator>
172 uninitialized_copy_n(InputIterator first, Size n, ForwardIterator result);
174 template <class ForwardIterator, class T>
175 void uninitialized_fill(ForwardIterator first, ForwardIterator last, const T& x);
177 template <class ForwardIterator, class Size, class T>
179 uninitialized_fill_n(ForwardIterator first, Size n, const T& x);
181 template <class Y> struct auto_ptr_ref {};
187 typedef X element_type;
189 explicit auto_ptr(X* p =0) throw();
190 auto_ptr(auto_ptr&) throw();
191 template<class Y> auto_ptr(auto_ptr<Y>&) throw();
192 auto_ptr& operator=(auto_ptr&) throw();
193 template<class Y> auto_ptr& operator=(auto_ptr<Y>&) throw();
194 auto_ptr& operator=(auto_ptr_ref<X> r) throw();
197 typename add_lvalue_reference<X>::type operator*() const throw();
198 X* operator->() const throw();
199 X* get() const throw();
200 X* release() throw();
201 void reset(X* p =0) throw();
203 auto_ptr(auto_ptr_ref<X>) throw();
204 template<class Y> operator auto_ptr_ref<Y>() throw();
205 template<class Y> operator auto_ptr<Y>() throw();
209 struct default_delete
211 constexpr default_delete() noexcept = default;
212 template <class U> default_delete(const default_delete<U>&) noexcept;
214 void operator()(T*) const noexcept;
218 struct default_delete<T[]>
220 constexpr default_delete() noexcept = default;
221 void operator()(T*) const noexcept;
222 template <class U> void operator()(U*) const = delete;
225 template <class T, class D = default_delete<T>>
229 typedef see below pointer;
230 typedef T element_type;
231 typedef D deleter_type;
234 constexpr unique_ptr() noexcept;
235 explicit unique_ptr(pointer p) noexcept;
236 unique_ptr(pointer p, see below d1) noexcept;
237 unique_ptr(pointer p, see below d2) noexcept;
238 unique_ptr(unique_ptr&& u) noexcept;
239 unique_ptr(nullptr_t) noexcept : unique_ptr() { }
240 template <class U, class E>
241 unique_ptr(unique_ptr<U, E>&& u) noexcept;
243 unique_ptr(auto_ptr<U>&& u) noexcept;
249 unique_ptr& operator=(unique_ptr&& u) noexcept;
250 template <class U, class E> unique_ptr& operator=(unique_ptr<U, E>&& u) noexcept;
251 unique_ptr& operator=(nullptr_t) noexcept;
254 typename add_lvalue_reference<T>::type operator*() const;
255 pointer operator->() const noexcept;
256 pointer get() const noexcept;
257 deleter_type& get_deleter() noexcept;
258 const deleter_type& get_deleter() const noexcept;
259 explicit operator bool() const noexcept;
262 pointer release() noexcept;
263 void reset(pointer p = pointer()) noexcept;
264 void swap(unique_ptr& u) noexcept;
267 template <class T, class D>
268 class unique_ptr<T[], D>
271 typedef implementation-defined pointer;
272 typedef T element_type;
273 typedef D deleter_type;
276 constexpr unique_ptr() noexcept;
277 explicit unique_ptr(pointer p) noexcept;
278 unique_ptr(pointer p, see below d) noexcept;
279 unique_ptr(pointer p, see below d) noexcept;
280 unique_ptr(unique_ptr&& u) noexcept;
281 unique_ptr(nullptr_t) noexcept : unique_ptr() { }
287 unique_ptr& operator=(unique_ptr&& u) noexcept;
288 unique_ptr& operator=(nullptr_t) noexcept;
291 T& operator[](size_t i) const;
292 pointer get() const noexcept;
293 deleter_type& get_deleter() noexcept;
294 const deleter_type& get_deleter() const noexcept;
295 explicit operator bool() const noexcept;
298 pointer release() noexcept;
299 void reset(pointer p = pointer()) noexcept;
300 void reset(nullptr_t) noexcept;
301 template <class U> void reset(U) = delete;
302 void swap(unique_ptr& u) noexcept;
305 template <class T, class D>
306 void swap(unique_ptr<T, D>& x, unique_ptr<T, D>& y) noexcept;
308 template <class T1, class D1, class T2, class D2>
309 bool operator==(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);
310 template <class T1, class D1, class T2, class D2>
311 bool operator!=(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);
312 template <class T1, class D1, class T2, class D2>
313 bool operator<(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);
314 template <class T1, class D1, class T2, class D2>
315 bool operator<=(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);
316 template <class T1, class D1, class T2, class D2>
317 bool operator>(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);
318 template <class T1, class D1, class T2, class D2>
319 bool operator>=(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y);
321 template <class T, class D>
322 bool operator==(const unique_ptr<T, D>& x, nullptr_t) noexcept;
323 template <class T, class D>
324 bool operator==(nullptr_t, const unique_ptr<T, D>& y) noexcept;
325 template <class T, class D>
326 bool operator!=(const unique_ptr<T, D>& x, nullptr_t) noexcept;
327 template <class T, class D>
328 bool operator!=(nullptr_t, const unique_ptr<T, D>& y) noexcept;
330 template <class T, class D>
331 bool operator<(const unique_ptr<T, D>& x, nullptr_t);
332 template <class T, class D>
333 bool operator<(nullptr_t, const unique_ptr<T, D>& y);
334 template <class T, class D>
335 bool operator<=(const unique_ptr<T, D>& x, nullptr_t);
336 template <class T, class D>
337 bool operator<=(nullptr_t, const unique_ptr<T, D>& y);
338 template <class T, class D>
339 bool operator>(const unique_ptr<T, D>& x, nullptr_t);
340 template <class T, class D>
341 bool operator>(nullptr_t, const unique_ptr<T, D>& y);
342 template <class T, class D>
343 bool operator>=(const unique_ptr<T, D>& x, nullptr_t);
344 template <class T, class D>
345 bool operator>=(nullptr_t, const unique_ptr<T, D>& y);
348 : public std::exception
350 bad_weak_ptr() noexcept;
357 typedef T element_type;
360 constexpr shared_ptr() noexcept;
361 template<class Y> explicit shared_ptr(Y* p);
362 template<class Y, class D> shared_ptr(Y* p, D d);
363 template<class Y, class D, class A> shared_ptr(Y* p, D d, A a);
364 template <class D> shared_ptr(nullptr_t p, D d);
365 template <class D, class A> shared_ptr(nullptr_t p, D d, A a);
366 template<class Y> shared_ptr(const shared_ptr<Y>& r, T *p) noexcept;
367 shared_ptr(const shared_ptr& r) noexcept;
368 template<class Y> shared_ptr(const shared_ptr<Y>& r) noexcept;
369 shared_ptr(shared_ptr&& r) noexcept;
370 template<class Y> shared_ptr(shared_ptr<Y>&& r) noexcept;
371 template<class Y> explicit shared_ptr(const weak_ptr<Y>& r);
372 template<class Y> shared_ptr(auto_ptr<Y>&& r);
373 template <class Y, class D> shared_ptr(unique_ptr<Y, D>&& r);
374 shared_ptr(nullptr_t) : shared_ptr() { }
380 shared_ptr& operator=(const shared_ptr& r) noexcept;
381 template<class Y> shared_ptr& operator=(const shared_ptr<Y>& r) noexcept;
382 shared_ptr& operator=(shared_ptr&& r) noexcept;
383 template<class Y> shared_ptr& operator=(shared_ptr<Y>&& r);
384 template<class Y> shared_ptr& operator=(auto_ptr<Y>&& r);
385 template <class Y, class D> shared_ptr& operator=(unique_ptr<Y, D>&& r);
388 void swap(shared_ptr& r) noexcept;
389 void reset() noexcept;
390 template<class Y> void reset(Y* p);
391 template<class Y, class D> void reset(Y* p, D d);
392 template<class Y, class D, class A> void reset(Y* p, D d, A a);
395 T* get() const noexcept;
396 T& operator*() const noexcept;
397 T* operator->() const noexcept;
398 long use_count() const noexcept;
399 bool unique() const noexcept;
400 explicit operator bool() const noexcept;
401 template<class U> bool owner_before(shared_ptr<U> const& b) const;
402 template<class U> bool owner_before(weak_ptr<U> const& b) const;
405 // shared_ptr comparisons:
406 template<class T, class U>
407 bool operator==(shared_ptr<T> const& a, shared_ptr<U> const& b) noexcept;
408 template<class T, class U>
409 bool operator!=(shared_ptr<T> const& a, shared_ptr<U> const& b) noexcept;
410 template<class T, class U>
411 bool operator<(shared_ptr<T> const& a, shared_ptr<U> const& b) noexcept;
412 template<class T, class U>
413 bool operator>(shared_ptr<T> const& a, shared_ptr<U> const& b) noexcept;
414 template<class T, class U>
415 bool operator<=(shared_ptr<T> const& a, shared_ptr<U> const& b) noexcept;
416 template<class T, class U>
417 bool operator>=(shared_ptr<T> const& a, shared_ptr<U> const& b) noexcept;
420 bool operator==(const shared_ptr<T>& x, nullptr_t) noexcept;
422 bool operator==(nullptr_t, const shared_ptr<T>& y) noexcept;
424 bool operator!=(const shared_ptr<T>& x, nullptr_t) noexcept;
426 bool operator!=(nullptr_t, const shared_ptr<T>& y) noexcept;
428 bool operator<(const shared_ptr<T>& x, nullptr_t) noexcept;
430 bool operator<(nullptr_t, const shared_ptr<T>& y) noexcept;
432 bool operator<=(const shared_ptr<T>& x, nullptr_t) noexcept;
434 bool operator<=(nullptr_t, const shared_ptr<T>& y) noexcept;
436 bool operator>(const shared_ptr<T>& x, nullptr_t) noexcept;
438 bool operator>(nullptr_t, const shared_ptr<T>& y) noexcept;
440 bool operator>=(const shared_ptr<T>& x, nullptr_t) noexcept;
442 bool operator>=(nullptr_t, const shared_ptr<T>& y) noexcept;
444 // shared_ptr specialized algorithms:
445 template<class T> void swap(shared_ptr<T>& a, shared_ptr<T>& b) noexcept;
448 template<class T, class U>
449 shared_ptr<T> static_pointer_cast(shared_ptr<U> const& r) noexcept;
450 template<class T, class U>
451 shared_ptr<T> dynamic_pointer_cast(shared_ptr<U> const& r) noexcept;
452 template<class T, class U>
453 shared_ptr<T> const_pointer_cast(shared_ptr<U> const& r) noexcept;
456 template<class E, class T, class Y>
457 basic_ostream<E, T>& operator<< (basic_ostream<E, T>& os, shared_ptr<Y> const& p);
459 // shared_ptr get_deleter:
460 template<class D, class T> D* get_deleter(shared_ptr<T> const& p) noexcept;
462 template<class T, class... Args>
463 shared_ptr<T> make_shared(Args&&... args);
464 template<class T, class A, class... Args>
465 shared_ptr<T> allocate_shared(const A& a, Args&&... args);
471 typedef T element_type;
474 constexpr weak_ptr() noexcept;
475 template<class Y> weak_ptr(shared_ptr<Y> const& r) noexcept;
476 weak_ptr(weak_ptr const& r) noexcept;
477 template<class Y> weak_ptr(weak_ptr<Y> const& r) noexcept;
483 weak_ptr& operator=(weak_ptr const& r) noexcept;
484 template<class Y> weak_ptr& operator=(weak_ptr<Y> const& r) noexcept;
485 template<class Y> weak_ptr& operator=(shared_ptr<Y> const& r) noexcept;
488 void swap(weak_ptr& r) noexcept;
489 void reset() noexcept;
492 long use_count() const noexcept;
493 bool expired() const noexcept;
494 shared_ptr<T> lock() const noexcept;
495 template<class U> bool owner_before(shared_ptr<U> const& b);
496 template<class U> bool owner_before(weak_ptr<U> const& b);
499 // weak_ptr specialized algorithms:
500 template<class T> void swap(weak_ptr<T>& a, weak_ptr<T>& b) noexcept;
503 template<class T> struct owner_less;
506 struct owner_less<shared_ptr<T>>
507 : binary_function<shared_ptr<T>, shared_ptr<T>, bool>
509 typedef bool result_type;
510 bool operator()(shared_ptr<T> const&, shared_ptr<T> const&) const;
511 bool operator()(shared_ptr<T> const&, weak_ptr<T> const&) const;
512 bool operator()(weak_ptr<T> const&, shared_ptr<T> const&) const;
516 struct owner_less<weak_ptr<T>>
517 : binary_function<weak_ptr<T>, weak_ptr<T>, bool>
519 typedef bool result_type;
520 bool operator()(weak_ptr<T> const&, weak_ptr<T> const&) const;
521 bool operator()(shared_ptr<T> const&, weak_ptr<T> const&) const;
522 bool operator()(weak_ptr<T> const&, shared_ptr<T> const&) const;
526 class enable_shared_from_this
529 constexpr enable_shared_from_this() noexcept;
530 enable_shared_from_this(enable_shared_from_this const&) noexcept;
531 enable_shared_from_this& operator=(enable_shared_from_this const&) noexcept;
532 ~enable_shared_from_this();
534 shared_ptr<T> shared_from_this();
535 shared_ptr<T const> shared_from_this() const;
539 bool atomic_is_lock_free(const shared_ptr<T>* p);
541 shared_ptr<T> atomic_load(const shared_ptr<T>* p);
543 shared_ptr<T> atomic_load_explicit(const shared_ptr<T>* p, memory_order mo);
545 void atomic_store(shared_ptr<T>* p, shared_ptr<T> r);
547 void atomic_store_explicit(shared_ptr<T>* p, shared_ptr<T> r, memory_order mo);
549 shared_ptr<T> atomic_exchange(shared_ptr<T>* p, shared_ptr<T> r);
552 atomic_exchange_explicit(shared_ptr<T>* p, shared_ptr<T> r, memory_order mo);
555 atomic_compare_exchange_weak(shared_ptr<T>* p, shared_ptr<T>* v, shared_ptr<T> w);
558 atomic_compare_exchange_strong( shared_ptr<T>* p, shared_ptr<T>* v, shared_ptr<T> w);
561 atomic_compare_exchange_weak_explicit(shared_ptr<T>* p, shared_ptr<T>* v,
562 shared_ptr<T> w, memory_order success,
563 memory_order failure);
566 atomic_compare_exchange_strong_explicit(shared_ptr<T>* p, shared_ptr<T>* v,
567 shared_ptr<T> w, memory_order success,
568 memory_order failure);
570 template <class T> struct hash;
571 template <class T, class D> struct hash<unique_ptr<T, D> >;
572 template <class T> struct hash<shared_ptr<T> >;
575 enum class pointer_safety { relaxed, preferred, strict };
576 void declare_reachable(void *p);
577 template <class T> T *undeclare_reachable(T *p);
578 void declare_no_pointers(char *p, size_t n);
579 void undeclare_no_pointers(char *p, size_t n);
580 pointer_safety get_pointer_safety() noexcept;
582 void* align(size_t alignment, size_t size, void*& ptr, size_t& space);
589 #include <type_traits>
597 #include <__functional_base>
599 #if defined(_LIBCPP_NO_EXCEPTIONS)
603 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
604 #pragma GCC system_header
607 _LIBCPP_BEGIN_NAMESPACE_STD
611 struct _LIBCPP_VISIBLE allocator_arg_t { };
613 extern const allocator_arg_t allocator_arg;
618 inline _LIBCPP_INLINE_VISIBILITY
620 addressof(_Tp& __x) _NOEXCEPT
622 return (_Tp*)&(char&)__x;
625 #if defined(_LIBCPP_HAS_OBJC_ARC) && !defined(_LIBCPP_PREDEFINED_OBJC_ARC_ADDRESSOF)
626 // Objective-C++ Automatic Reference Counting uses qualified pointers
627 // that require special addressof() signatures. When
628 // _LIBCPP_PREDEFINED_OBJC_ARC_ADDRESSOF is defined, the compiler
629 // itself is providing these definitions. Otherwise, we provide them.
631 inline _LIBCPP_INLINE_VISIBILITY
633 addressof(__strong _Tp& __x) _NOEXCEPT
638 #ifdef _LIBCPP_HAS_OBJC_ARC_WEAK
640 inline _LIBCPP_INLINE_VISIBILITY
642 addressof(__weak _Tp& __x) _NOEXCEPT
649 inline _LIBCPP_INLINE_VISIBILITY
651 addressof(__autoreleasing _Tp& __x) _NOEXCEPT
657 inline _LIBCPP_INLINE_VISIBILITY
658 __unsafe_unretained _Tp*
659 addressof(__unsafe_unretained _Tp& __x) _NOEXCEPT
665 template <class _Tp> class allocator;
668 class _LIBCPP_VISIBLE allocator<void>
671 typedef void* pointer;
672 typedef const void* const_pointer;
673 typedef void value_type;
675 template <class _Up> struct rebind {typedef allocator<_Up> other;};
681 struct __has_element_type
684 struct __two {char _; char __;};
685 template <class _Up> static __two __test(...);
686 template <class _Up> static char __test(typename _Up::element_type* = 0);
688 static const bool value = sizeof(__test<_Tp>(0)) == 1;
691 template <class _Ptr, bool = __has_element_type<_Ptr>::value>
692 struct __pointer_traits_element_type;
694 template <class _Ptr>
695 struct __pointer_traits_element_type<_Ptr, true>
697 typedef typename _Ptr::element_type type;
700 #ifndef _LIBCPP_HAS_NO_VARIADICS
702 template <template <class, class...> class _Sp, class _Tp, class ..._Args>
703 struct __pointer_traits_element_type<_Sp<_Tp, _Args...>, true>
705 typedef typename _Sp<_Tp, _Args...>::element_type type;
708 template <template <class, class...> class _Sp, class _Tp, class ..._Args>
709 struct __pointer_traits_element_type<_Sp<_Tp, _Args...>, false>
714 #else // _LIBCPP_HAS_NO_VARIADICS
716 template <template <class> class _Sp, class _Tp>
717 struct __pointer_traits_element_type<_Sp<_Tp>, true>
719 typedef typename _Sp<_Tp>::element_type type;
722 template <template <class> class _Sp, class _Tp>
723 struct __pointer_traits_element_type<_Sp<_Tp>, false>
728 template <template <class, class> class _Sp, class _Tp, class _A0>
729 struct __pointer_traits_element_type<_Sp<_Tp, _A0>, true>
731 typedef typename _Sp<_Tp, _A0>::element_type type;
734 template <template <class, class> class _Sp, class _Tp, class _A0>
735 struct __pointer_traits_element_type<_Sp<_Tp, _A0>, false>
740 template <template <class, class, class> class _Sp, class _Tp, class _A0, class _A1>
741 struct __pointer_traits_element_type<_Sp<_Tp, _A0, _A1>, true>
743 typedef typename _Sp<_Tp, _A0, _A1>::element_type type;
746 template <template <class, class, class> class _Sp, class _Tp, class _A0, class _A1>
747 struct __pointer_traits_element_type<_Sp<_Tp, _A0, _A1>, false>
752 template <template <class, class, class, class> class _Sp, class _Tp, class _A0,
753 class _A1, class _A2>
754 struct __pointer_traits_element_type<_Sp<_Tp, _A0, _A1, _A2>, true>
756 typedef typename _Sp<_Tp, _A0, _A1, _A2>::element_type type;
759 template <template <class, class, class, class> class _Sp, class _Tp, class _A0,
760 class _A1, class _A2>
761 struct __pointer_traits_element_type<_Sp<_Tp, _A0, _A1, _A2>, false>
766 #endif // _LIBCPP_HAS_NO_VARIADICS
769 struct __has_difference_type
772 struct __two {char _; char __;};
773 template <class _Up> static __two __test(...);
774 template <class _Up> static char __test(typename _Up::difference_type* = 0);
776 static const bool value = sizeof(__test<_Tp>(0)) == 1;
779 template <class _Ptr, bool = __has_difference_type<_Ptr>::value>
780 struct __pointer_traits_difference_type
782 typedef ptrdiff_t type;
785 template <class _Ptr>
786 struct __pointer_traits_difference_type<_Ptr, true>
788 typedef typename _Ptr::difference_type type;
791 template <class _Tp, class _Up>
795 struct __two {char _; char __;};
796 template <class _Xp> static __two __test(...);
797 template <class _Xp> static char __test(typename _Xp::template rebind<_Up>* = 0);
799 static const bool value = sizeof(__test<_Tp>(0)) == 1;
802 template <class _Tp, class _Up, bool = __has_rebind<_Tp, _Up>::value>
803 struct __pointer_traits_rebind
805 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
806 typedef typename _Tp::template rebind<_Up> type;
808 typedef typename _Tp::template rebind<_Up>::other type;
812 #ifndef _LIBCPP_HAS_NO_VARIADICS
814 template <template <class, class...> class _Sp, class _Tp, class ..._Args, class _Up>
815 struct __pointer_traits_rebind<_Sp<_Tp, _Args...>, _Up, true>
817 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
818 typedef typename _Sp<_Tp, _Args...>::template rebind<_Up> type;
820 typedef typename _Sp<_Tp, _Args...>::template rebind<_Up>::other type;
824 template <template <class, class...> class _Sp, class _Tp, class ..._Args, class _Up>
825 struct __pointer_traits_rebind<_Sp<_Tp, _Args...>, _Up, false>
827 typedef _Sp<_Up, _Args...> type;
830 #else // _LIBCPP_HAS_NO_VARIADICS
832 template <template <class> class _Sp, class _Tp, class _Up>
833 struct __pointer_traits_rebind<_Sp<_Tp>, _Up, true>
835 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
836 typedef typename _Sp<_Tp>::template rebind<_Up> type;
838 typedef typename _Sp<_Tp>::template rebind<_Up>::other type;
842 template <template <class> class _Sp, class _Tp, class _Up>
843 struct __pointer_traits_rebind<_Sp<_Tp>, _Up, false>
845 typedef _Sp<_Up> type;
848 template <template <class, class> class _Sp, class _Tp, class _A0, class _Up>
849 struct __pointer_traits_rebind<_Sp<_Tp, _A0>, _Up, true>
851 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
852 typedef typename _Sp<_Tp, _A0>::template rebind<_Up> type;
854 typedef typename _Sp<_Tp, _A0>::template rebind<_Up>::other type;
858 template <template <class, class> class _Sp, class _Tp, class _A0, class _Up>
859 struct __pointer_traits_rebind<_Sp<_Tp, _A0>, _Up, false>
861 typedef _Sp<_Up, _A0> type;
864 template <template <class, class, class> class _Sp, class _Tp, class _A0,
865 class _A1, class _Up>
866 struct __pointer_traits_rebind<_Sp<_Tp, _A0, _A1>, _Up, true>
868 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
869 typedef typename _Sp<_Tp, _A0, _A1>::template rebind<_Up> type;
871 typedef typename _Sp<_Tp, _A0, _A1>::template rebind<_Up>::other type;
875 template <template <class, class, class> class _Sp, class _Tp, class _A0,
876 class _A1, class _Up>
877 struct __pointer_traits_rebind<_Sp<_Tp, _A0, _A1>, _Up, false>
879 typedef _Sp<_Up, _A0, _A1> type;
882 template <template <class, class, class, class> class _Sp, class _Tp, class _A0,
883 class _A1, class _A2, class _Up>
884 struct __pointer_traits_rebind<_Sp<_Tp, _A0, _A1, _A2>, _Up, true>
886 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
887 typedef typename _Sp<_Tp, _A0, _A1, _A2>::template rebind<_Up> type;
889 typedef typename _Sp<_Tp, _A0, _A1, _A2>::template rebind<_Up>::other type;
893 template <template <class, class, class, class> class _Sp, class _Tp, class _A0,
894 class _A1, class _A2, class _Up>
895 struct __pointer_traits_rebind<_Sp<_Tp, _A0, _A1, _A2>, _Up, false>
897 typedef _Sp<_Up, _A0, _A1, _A2> type;
900 #endif // _LIBCPP_HAS_NO_VARIADICS
902 template <class _Ptr>
903 struct _LIBCPP_VISIBLE pointer_traits
905 typedef _Ptr pointer;
906 typedef typename __pointer_traits_element_type<pointer>::type element_type;
907 typedef typename __pointer_traits_difference_type<pointer>::type difference_type;
909 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
910 template <class _Up> using rebind = typename __pointer_traits_rebind<pointer, _Up>::type;
912 template <class _Up> struct rebind
913 {typedef typename __pointer_traits_rebind<pointer, _Up>::type other;};
914 #endif // _LIBCPP_HAS_NO_TEMPLATE_ALIASES
919 _LIBCPP_INLINE_VISIBILITY
920 static pointer pointer_to(typename conditional<is_void<element_type>::value,
921 __nat, element_type>::type& __r)
922 {return pointer::pointer_to(__r);}
926 struct _LIBCPP_VISIBLE pointer_traits<_Tp*>
928 typedef _Tp* pointer;
929 typedef _Tp element_type;
930 typedef ptrdiff_t difference_type;
932 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
933 template <class _Up> using rebind = _Up*;
935 template <class _Up> struct rebind {typedef _Up* other;};
941 _LIBCPP_INLINE_VISIBILITY
942 static pointer pointer_to(typename conditional<is_void<element_type>::value,
943 __nat, element_type>::type& __r) _NOEXCEPT
944 {return _VSTD::addressof(__r);}
949 namespace __has_pointer_type_imp
951 template <class _Up> static __two test(...);
952 template <class _Up> static char test(typename _Up::pointer* = 0);
956 struct __has_pointer_type
957 : public integral_constant<bool, sizeof(__has_pointer_type_imp::test<_Tp>(0)) == 1>
961 namespace __pointer_type_imp
964 template <class _Tp, class _Dp, bool = __has_pointer_type<_Dp>::value>
965 struct __pointer_type
967 typedef typename _Dp::pointer type;
970 template <class _Tp, class _Dp>
971 struct __pointer_type<_Tp, _Dp, false>
976 } // __pointer_type_imp
978 template <class _Tp, class _Dp>
979 struct __pointer_type
981 typedef typename __pointer_type_imp::__pointer_type<_Tp, typename remove_reference<_Dp>::type>::type type;
985 struct __has_const_pointer
988 struct __two {char _; char __;};
989 template <class _Up> static __two __test(...);
990 template <class _Up> static char __test(typename _Up::const_pointer* = 0);
992 static const bool value = sizeof(__test<_Tp>(0)) == 1;
995 template <class _Tp, class _Ptr, class _Alloc, bool = __has_const_pointer<_Alloc>::value>
996 struct __const_pointer
998 typedef typename _Alloc::const_pointer type;
1001 template <class _Tp, class _Ptr, class _Alloc>
1002 struct __const_pointer<_Tp, _Ptr, _Alloc, false>
1004 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
1005 typedef typename pointer_traits<_Ptr>::template rebind<const _Tp> type;
1007 typedef typename pointer_traits<_Ptr>::template rebind<const _Tp>::other type;
1011 template <class _Tp>
1012 struct __has_void_pointer
1015 struct __two {char _; char __;};
1016 template <class _Up> static __two __test(...);
1017 template <class _Up> static char __test(typename _Up::void_pointer* = 0);
1019 static const bool value = sizeof(__test<_Tp>(0)) == 1;
1022 template <class _Ptr, class _Alloc, bool = __has_void_pointer<_Alloc>::value>
1023 struct __void_pointer
1025 typedef typename _Alloc::void_pointer type;
1028 template <class _Ptr, class _Alloc>
1029 struct __void_pointer<_Ptr, _Alloc, false>
1031 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
1032 typedef typename pointer_traits<_Ptr>::template rebind<void> type;
1034 typedef typename pointer_traits<_Ptr>::template rebind<void>::other type;
1038 template <class _Tp>
1039 struct __has_const_void_pointer
1042 struct __two {char _; char __;};
1043 template <class _Up> static __two __test(...);
1044 template <class _Up> static char __test(typename _Up::const_void_pointer* = 0);
1046 static const bool value = sizeof(__test<_Tp>(0)) == 1;
1049 template <class _Ptr, class _Alloc, bool = __has_const_void_pointer<_Alloc>::value>
1050 struct __const_void_pointer
1052 typedef typename _Alloc::const_void_pointer type;
1055 template <class _Ptr, class _Alloc>
1056 struct __const_void_pointer<_Ptr, _Alloc, false>
1058 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
1059 typedef typename pointer_traits<_Ptr>::template rebind<const void> type;
1061 typedef typename pointer_traits<_Ptr>::template rebind<const void>::other type;
1066 inline _LIBCPP_INLINE_VISIBILITY
1068 __to_raw_pointer(_T* __p) _NOEXCEPT
1073 template <class _Pointer>
1074 inline _LIBCPP_INLINE_VISIBILITY
1075 typename pointer_traits<_Pointer>::element_type*
1076 __to_raw_pointer(_Pointer __p) _NOEXCEPT
1078 return _VSTD::__to_raw_pointer(__p.operator->());
1081 template <class _Tp>
1082 struct __has_size_type
1085 struct __two {char _; char __;};
1086 template <class _Up> static __two __test(...);
1087 template <class _Up> static char __test(typename _Up::size_type* = 0);
1089 static const bool value = sizeof(__test<_Tp>(0)) == 1;
1092 template <class _Alloc, class _DiffType, bool = __has_size_type<_Alloc>::value>
1095 typedef typename make_unsigned<_DiffType>::type type;
1098 template <class _Alloc, class _DiffType>
1099 struct __size_type<_Alloc, _DiffType, true>
1101 typedef typename _Alloc::size_type type;
1104 template <class _Tp>
1105 struct __has_propagate_on_container_copy_assignment
1108 struct __two {char _; char __;};
1109 template <class _Up> static __two __test(...);
1110 template <class _Up> static char __test(typename _Up::propagate_on_container_copy_assignment* = 0);
1112 static const bool value = sizeof(__test<_Tp>(0)) == 1;
1115 template <class _Alloc, bool = __has_propagate_on_container_copy_assignment<_Alloc>::value>
1116 struct __propagate_on_container_copy_assignment
1118 typedef false_type type;
1121 template <class _Alloc>
1122 struct __propagate_on_container_copy_assignment<_Alloc, true>
1124 typedef typename _Alloc::propagate_on_container_copy_assignment type;
1127 template <class _Tp>
1128 struct __has_propagate_on_container_move_assignment
1131 struct __two {char _; char __;};
1132 template <class _Up> static __two __test(...);
1133 template <class _Up> static char __test(typename _Up::propagate_on_container_move_assignment* = 0);
1135 static const bool value = sizeof(__test<_Tp>(0)) == 1;
1138 template <class _Alloc, bool = __has_propagate_on_container_move_assignment<_Alloc>::value>
1139 struct __propagate_on_container_move_assignment
1141 typedef false_type type;
1144 template <class _Alloc>
1145 struct __propagate_on_container_move_assignment<_Alloc, true>
1147 typedef typename _Alloc::propagate_on_container_move_assignment type;
1150 template <class _Tp>
1151 struct __has_propagate_on_container_swap
1154 struct __two {char _; char __;};
1155 template <class _Up> static __two __test(...);
1156 template <class _Up> static char __test(typename _Up::propagate_on_container_swap* = 0);
1158 static const bool value = sizeof(__test<_Tp>(0)) == 1;
1161 template <class _Alloc, bool = __has_propagate_on_container_swap<_Alloc>::value>
1162 struct __propagate_on_container_swap
1164 typedef false_type type;
1167 template <class _Alloc>
1168 struct __propagate_on_container_swap<_Alloc, true>
1170 typedef typename _Alloc::propagate_on_container_swap type;
1173 template <class _Tp, class _Up, bool = __has_rebind<_Tp, _Up>::value>
1174 struct __has_rebind_other
1177 struct __two {char _; char __;};
1178 template <class _Xp> static __two __test(...);
1179 template <class _Xp> static char __test(typename _Xp::template rebind<_Up>::other* = 0);
1181 static const bool value = sizeof(__test<_Tp>(0)) == 1;
1184 template <class _Tp, class _Up>
1185 struct __has_rebind_other<_Tp, _Up, false>
1187 static const bool value = false;
1190 template <class _Tp, class _Up, bool = __has_rebind_other<_Tp, _Up>::value>
1191 struct __allocator_traits_rebind
1193 typedef typename _Tp::template rebind<_Up>::other type;
1196 #ifndef _LIBCPP_HAS_NO_VARIADICS
1198 template <template <class, class...> class _Alloc, class _Tp, class ..._Args, class _Up>
1199 struct __allocator_traits_rebind<_Alloc<_Tp, _Args...>, _Up, true>
1201 typedef typename _Alloc<_Tp, _Args...>::template rebind<_Up>::other type;
1204 template <template <class, class...> class _Alloc, class _Tp, class ..._Args, class _Up>
1205 struct __allocator_traits_rebind<_Alloc<_Tp, _Args...>, _Up, false>
1207 typedef _Alloc<_Up, _Args...> type;
1210 #else // _LIBCPP_HAS_NO_VARIADICS
1212 template <template <class> class _Alloc, class _Tp, class _Up>
1213 struct __allocator_traits_rebind<_Alloc<_Tp>, _Up, true>
1215 typedef typename _Alloc<_Tp>::template rebind<_Up>::other type;
1218 template <template <class> class _Alloc, class _Tp, class _Up>
1219 struct __allocator_traits_rebind<_Alloc<_Tp>, _Up, false>
1221 typedef _Alloc<_Up> type;
1224 template <template <class, class> class _Alloc, class _Tp, class _A0, class _Up>
1225 struct __allocator_traits_rebind<_Alloc<_Tp, _A0>, _Up, true>
1227 typedef typename _Alloc<_Tp, _A0>::template rebind<_Up>::other type;
1230 template <template <class, class> class _Alloc, class _Tp, class _A0, class _Up>
1231 struct __allocator_traits_rebind<_Alloc<_Tp, _A0>, _Up, false>
1233 typedef _Alloc<_Up, _A0> type;
1236 template <template <class, class, class> class _Alloc, class _Tp, class _A0,
1237 class _A1, class _Up>
1238 struct __allocator_traits_rebind<_Alloc<_Tp, _A0, _A1>, _Up, true>
1240 typedef typename _Alloc<_Tp, _A0, _A1>::template rebind<_Up>::other type;
1243 template <template <class, class, class> class _Alloc, class _Tp, class _A0,
1244 class _A1, class _Up>
1245 struct __allocator_traits_rebind<_Alloc<_Tp, _A0, _A1>, _Up, false>
1247 typedef _Alloc<_Up, _A0, _A1> type;
1250 template <template <class, class, class, class> class _Alloc, class _Tp, class _A0,
1251 class _A1, class _A2, class _Up>
1252 struct __allocator_traits_rebind<_Alloc<_Tp, _A0, _A1, _A2>, _Up, true>
1254 typedef typename _Alloc<_Tp, _A0, _A1, _A2>::template rebind<_Up>::other type;
1257 template <template <class, class, class, class> class _Alloc, class _Tp, class _A0,
1258 class _A1, class _A2, class _Up>
1259 struct __allocator_traits_rebind<_Alloc<_Tp, _A0, _A1, _A2>, _Up, false>
1261 typedef _Alloc<_Up, _A0, _A1, _A2> type;
1264 #endif // _LIBCPP_HAS_NO_VARIADICS
1266 #ifndef _LIBCPP_HAS_NO_ADVANCED_SFINAE
1268 template <class _Alloc, class _SizeType, class _ConstVoidPtr>
1270 __has_allocate_hint_test(_Alloc&& __a, _SizeType&& __sz, _ConstVoidPtr&& __p)
1271 -> decltype(__a.allocate(__sz, __p), true_type());
1273 template <class _Alloc, class _SizeType, class _ConstVoidPtr>
1275 __has_allocate_hint_test(const _Alloc& __a, _SizeType&& __sz, _ConstVoidPtr&& __p)
1278 template <class _Alloc, class _SizeType, class _ConstVoidPtr>
1279 struct __has_allocate_hint
1280 : integral_constant<bool,
1282 decltype(__has_allocate_hint_test(declval<_Alloc>(),
1283 declval<_SizeType>(),
1284 declval<_ConstVoidPtr>())),
1289 #else // _LIBCPP_HAS_NO_ADVANCED_SFINAE
1291 template <class _Alloc, class _SizeType, class _ConstVoidPtr>
1292 struct __has_allocate_hint
1297 #endif // _LIBCPP_HAS_NO_ADVANCED_SFINAE
1299 #if !defined(_LIBCPP_HAS_NO_ADVANCED_SFINAE) && !defined(_LIBCPP_HAS_NO_VARIADICS)
1301 template <class _Alloc, class _Tp, class ..._Args>
1302 decltype(_VSTD::declval<_Alloc>().construct(_VSTD::declval<_Tp*>(),
1303 _VSTD::declval<_Args>()...),
1305 __has_construct_test(_Alloc&& __a, _Tp* __p, _Args&& ...__args);
1307 template <class _Alloc, class _Pointer, class ..._Args>
1309 __has_construct_test(const _Alloc& __a, _Pointer&& __p, _Args&& ...__args);
1311 template <class _Alloc, class _Pointer, class ..._Args>
1312 struct __has_construct
1313 : integral_constant<bool,
1315 decltype(__has_construct_test(declval<_Alloc>(),
1316 declval<_Pointer>(),
1317 declval<_Args>()...)),
1322 template <class _Alloc, class _Pointer>
1324 __has_destroy_test(_Alloc&& __a, _Pointer&& __p)
1325 -> decltype(__a.destroy(__p), true_type());
1327 template <class _Alloc, class _Pointer>
1329 __has_destroy_test(const _Alloc& __a, _Pointer&& __p)
1332 template <class _Alloc, class _Pointer>
1333 struct __has_destroy
1334 : integral_constant<bool,
1336 decltype(__has_destroy_test(declval<_Alloc>(),
1337 declval<_Pointer>())),
1342 template <class _Alloc>
1344 __has_max_size_test(_Alloc&& __a)
1345 -> decltype(__a.max_size(), true_type());
1347 template <class _Alloc>
1349 __has_max_size_test(const volatile _Alloc& __a)
1352 template <class _Alloc>
1353 struct __has_max_size
1354 : integral_constant<bool,
1356 decltype(__has_max_size_test(declval<_Alloc&>())),
1361 template <class _Alloc>
1363 __has_select_on_container_copy_construction_test(_Alloc&& __a)
1364 -> decltype(__a.select_on_container_copy_construction(), true_type());
1366 template <class _Alloc>
1368 __has_select_on_container_copy_construction_test(const volatile _Alloc& __a)
1371 template <class _Alloc>
1372 struct __has_select_on_container_copy_construction
1373 : integral_constant<bool,
1375 decltype(__has_select_on_container_copy_construction_test(declval<_Alloc&>())),
1380 #else // _LIBCPP_HAS_NO_ADVANCED_SFINAE
1382 #ifndef _LIBCPP_HAS_NO_VARIADICS
1384 template <class _Alloc, class _Pointer, class ..._Args>
1385 struct __has_construct
1390 #endif // _LIBCPP_HAS_NO_VARIADICS
1392 template <class _Alloc, class _Pointer>
1393 struct __has_destroy
1398 template <class _Alloc>
1399 struct __has_max_size
1404 template <class _Alloc>
1405 struct __has_select_on_container_copy_construction
1410 #endif // _LIBCPP_HAS_NO_ADVANCED_SFINAE
1412 template <class _Alloc, class _Ptr, bool = __has_difference_type<_Alloc>::value>
1413 struct __alloc_traits_difference_type
1415 typedef typename pointer_traits<_Ptr>::difference_type type;
1418 template <class _Alloc, class _Ptr>
1419 struct __alloc_traits_difference_type<_Alloc, _Ptr, true>
1421 typedef typename _Alloc::difference_type type;
1424 template <class _Alloc>
1425 struct _LIBCPP_VISIBLE allocator_traits
1427 typedef _Alloc allocator_type;
1428 typedef typename allocator_type::value_type value_type;
1430 typedef typename __pointer_type<value_type, allocator_type>::type pointer;
1431 typedef typename __const_pointer<value_type, pointer, allocator_type>::type const_pointer;
1432 typedef typename __void_pointer<pointer, allocator_type>::type void_pointer;
1433 typedef typename __const_void_pointer<pointer, allocator_type>::type const_void_pointer;
1435 typedef typename __alloc_traits_difference_type<allocator_type, pointer>::type difference_type;
1436 typedef typename __size_type<allocator_type, difference_type>::type size_type;
1438 typedef typename __propagate_on_container_copy_assignment<allocator_type>::type
1439 propagate_on_container_copy_assignment;
1440 typedef typename __propagate_on_container_move_assignment<allocator_type>::type
1441 propagate_on_container_move_assignment;
1442 typedef typename __propagate_on_container_swap<allocator_type>::type
1443 propagate_on_container_swap;
1445 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
1446 template <class _Tp> using rebind_alloc =
1447 typename __allocator_traits_rebind<allocator_type, _Tp>::type;
1448 template <class _Tp> using rebind_traits = allocator_traits<rebind_alloc<_Tp>>;
1449 #else // _LIBCPP_HAS_NO_TEMPLATE_ALIASES
1450 template <class _Tp> struct rebind_alloc
1451 {typedef typename __allocator_traits_rebind<allocator_type, _Tp>::type other;};
1452 template <class _Tp> struct rebind_traits
1453 {typedef allocator_traits<typename rebind_alloc<_Tp>::other> other;};
1454 #endif // _LIBCPP_HAS_NO_TEMPLATE_ALIASES
1456 _LIBCPP_INLINE_VISIBILITY
1457 static pointer allocate(allocator_type& __a, size_type __n)
1458 {return __a.allocate(__n);}
1459 _LIBCPP_INLINE_VISIBILITY
1460 static pointer allocate(allocator_type& __a, size_type __n, const_void_pointer __hint)
1461 {return allocate(__a, __n, __hint,
1462 __has_allocate_hint<allocator_type, size_type, const_void_pointer>());}
1464 _LIBCPP_INLINE_VISIBILITY
1465 static void deallocate(allocator_type& __a, pointer __p, size_type __n) _NOEXCEPT
1466 {__a.deallocate(__p, __n);}
1468 #ifndef _LIBCPP_HAS_NO_VARIADICS
1469 template <class _Tp, class... _Args>
1470 _LIBCPP_INLINE_VISIBILITY
1471 static void construct(allocator_type& __a, _Tp* __p, _Args&&... __args)
1472 {__construct(__has_construct<allocator_type, pointer, _Args...>(),
1473 __a, __p, _VSTD::forward<_Args>(__args)...);}
1474 #else // _LIBCPP_HAS_NO_VARIADICS
1475 template <class _Tp>
1476 _LIBCPP_INLINE_VISIBILITY
1477 static void construct(allocator_type& __a, _Tp* __p)
1479 ::new ((void*)__p) _Tp();
1481 template <class _Tp, class _A0>
1482 _LIBCPP_INLINE_VISIBILITY
1483 static void construct(allocator_type& __a, _Tp* __p, const _A0& __a0)
1485 ::new ((void*)__p) _Tp(__a0);
1487 template <class _Tp, class _A0, class _A1>
1488 _LIBCPP_INLINE_VISIBILITY
1489 static void construct(allocator_type& __a, _Tp* __p, const _A0& __a0,
1492 ::new ((void*)__p) _Tp(__a0, __a1);
1494 template <class _Tp, class _A0, class _A1, class _A2>
1495 _LIBCPP_INLINE_VISIBILITY
1496 static void construct(allocator_type& __a, _Tp* __p, const _A0& __a0,
1497 const _A1& __a1, const _A2& __a2)
1499 ::new ((void*)__p) _Tp(__a0, __a1, __a2);
1501 #endif // _LIBCPP_HAS_NO_VARIADICS
1503 template <class _Tp>
1504 _LIBCPP_INLINE_VISIBILITY
1505 static void destroy(allocator_type& __a, _Tp* __p)
1506 {__destroy(__has_destroy<allocator_type, _Tp*>(), __a, __p);}
1508 _LIBCPP_INLINE_VISIBILITY
1509 static size_type max_size(const allocator_type& __a)
1510 {return __max_size(__has_max_size<const allocator_type>(), __a);}
1512 _LIBCPP_INLINE_VISIBILITY
1513 static allocator_type
1514 select_on_container_copy_construction(const allocator_type& __a)
1515 {return select_on_container_copy_construction(
1516 __has_select_on_container_copy_construction<const allocator_type>(),
1521 _LIBCPP_INLINE_VISIBILITY
1522 static pointer allocate(allocator_type& __a, size_type __n,
1523 const_void_pointer __hint, true_type)
1524 {return __a.allocate(__n, __hint);}
1525 _LIBCPP_INLINE_VISIBILITY
1526 static pointer allocate(allocator_type& __a, size_type __n,
1527 const_void_pointer __hint, false_type)
1528 {return __a.allocate(__n);}
1530 #ifndef _LIBCPP_HAS_NO_VARIADICS
1531 template <class _Tp, class... _Args>
1532 _LIBCPP_INLINE_VISIBILITY
1533 static void __construct(true_type, allocator_type& __a, _Tp* __p, _Args&&... __args)
1534 {__a.construct(__p, _VSTD::forward<_Args>(__args)...);}
1535 template <class _Tp, class... _Args>
1536 _LIBCPP_INLINE_VISIBILITY
1537 static void __construct(false_type, allocator_type&, _Tp* __p, _Args&&... __args)
1539 ::new ((void*)__p) _Tp(_VSTD::forward<_Args>(__args)...);
1541 #endif // _LIBCPP_HAS_NO_VARIADICS
1543 template <class _Tp>
1544 _LIBCPP_INLINE_VISIBILITY
1545 static void __destroy(true_type, allocator_type& __a, _Tp* __p)
1547 template <class _Tp>
1548 _LIBCPP_INLINE_VISIBILITY
1549 static void __destroy(false_type, allocator_type&, _Tp* __p)
1554 _LIBCPP_INLINE_VISIBILITY
1555 static size_type __max_size(true_type, const allocator_type& __a)
1556 {return __a.max_size();}
1557 _LIBCPP_INLINE_VISIBILITY
1558 static size_type __max_size(false_type, const allocator_type&)
1559 {return numeric_limits<size_type>::max();}
1561 _LIBCPP_INLINE_VISIBILITY
1562 static allocator_type
1563 select_on_container_copy_construction(true_type, const allocator_type& __a)
1564 {return __a.select_on_container_copy_construction();}
1565 _LIBCPP_INLINE_VISIBILITY
1566 static allocator_type
1567 select_on_container_copy_construction(false_type, const allocator_type& __a)
1573 template <class _Tp>
1574 struct __has_allocator_type
1577 struct __two {char _; char __;};
1578 template <class _Up> static __two __test(...);
1579 template <class _Up> static char __test(typename _Up::allocator_type* = 0);
1581 static const bool value = sizeof(__test<_Tp>(0)) == 1;
1584 template <class _Tp, class _Alloc, bool = __has_allocator_type<_Tp>::value>
1585 struct __uses_allocator
1586 : public integral_constant<bool,
1587 is_convertible<_Alloc, typename _Tp::allocator_type>::value>
1591 template <class _Tp, class _Alloc>
1592 struct __uses_allocator<_Tp, _Alloc, false>
1597 template <class _Tp, class _Alloc>
1598 struct _LIBCPP_VISIBLE uses_allocator
1599 : public __uses_allocator<_Tp, _Alloc>
1603 #ifndef _LIBCPP_HAS_NO_VARIADICS
1605 // uses-allocator construction
1607 template <class _Tp, class _Alloc, class ..._Args>
1608 struct __uses_alloc_ctor_imp
1610 static const bool __ua = uses_allocator<_Tp, _Alloc>::value;
1611 static const bool __ic =
1612 is_constructible<_Tp, allocator_arg_t, _Alloc, _Args...>::value;
1613 static const int value = __ua ? 2 - __ic : 0;
1616 template <class _Tp, class _Alloc, class ..._Args>
1617 struct __uses_alloc_ctor
1618 : integral_constant<int, __uses_alloc_ctor_imp<_Tp, _Alloc, _Args...>::value>
1621 #endif // _LIBCPP_HAS_NO_VARIADICS
1625 template <class _Tp>
1626 class _LIBCPP_VISIBLE allocator
1629 typedef size_t size_type;
1630 typedef ptrdiff_t difference_type;
1631 typedef _Tp* pointer;
1632 typedef const _Tp* const_pointer;
1633 typedef _Tp& reference;
1634 typedef const _Tp& const_reference;
1635 typedef _Tp value_type;
1637 typedef true_type propagate_on_container_move_assignment;
1639 template <class _Up> struct rebind {typedef allocator<_Up> other;};
1641 _LIBCPP_INLINE_VISIBILITY allocator() _NOEXCEPT {}
1642 template <class _Up> _LIBCPP_INLINE_VISIBILITY allocator(const allocator<_Up>&) _NOEXCEPT {}
1643 _LIBCPP_INLINE_VISIBILITY pointer address(reference __x) const _NOEXCEPT
1644 {return _VSTD::addressof(__x);}
1645 _LIBCPP_INLINE_VISIBILITY const_pointer address(const_reference __x) const _NOEXCEPT
1646 {return _VSTD::addressof(__x);}
1647 _LIBCPP_INLINE_VISIBILITY pointer allocate(size_type __n, allocator<void>::const_pointer = 0)
1648 {return static_cast<pointer>(::operator new(__n * sizeof(_Tp)));}
1649 _LIBCPP_INLINE_VISIBILITY void deallocate(pointer __p, size_type) _NOEXCEPT
1650 {::operator delete((void*)__p);}
1651 _LIBCPP_INLINE_VISIBILITY size_type max_size() const _NOEXCEPT
1652 {return size_type(~0) / sizeof(_Tp);}
1653 #if !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_VARIADICS)
1654 template <class _Up, class... _Args>
1655 _LIBCPP_INLINE_VISIBILITY
1657 construct(_Up* __p, _Args&&... __args)
1659 ::new((void*)__p) _Up(_VSTD::forward<_Args>(__args)...);
1661 #else // !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_VARIADICS)
1662 _LIBCPP_INLINE_VISIBILITY
1664 construct(pointer __p)
1666 ::new((void*)__p) _Tp();
1668 # if defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES)
1669 template <class _A0>
1670 _LIBCPP_INLINE_VISIBILITY
1673 !is_convertible<_A0, __rv<_A0> >::value,
1676 construct(pointer __p, _A0& __a0)
1678 ::new((void*)__p) _Tp(__a0);
1680 template <class _A0>
1681 _LIBCPP_INLINE_VISIBILITY
1684 !is_convertible<_A0, __rv<_A0> >::value,
1687 construct(pointer __p, const _A0& __a0)
1689 ::new((void*)__p) _Tp(__a0);
1691 template <class _A0>
1692 _LIBCPP_INLINE_VISIBILITY
1695 is_convertible<_A0, __rv<_A0> >::value,
1698 construct(pointer __p, _A0 __a0)
1700 ::new((void*)__p) _Tp(_VSTD::move(__a0));
1702 # endif // defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES)
1703 template <class _A0, class _A1>
1704 _LIBCPP_INLINE_VISIBILITY
1706 construct(pointer __p, _A0& __a0, _A1& __a1)
1708 ::new((void*)__p) _Tp(__a0, __a1);
1710 template <class _A0, class _A1>
1711 _LIBCPP_INLINE_VISIBILITY
1713 construct(pointer __p, const _A0& __a0, _A1& __a1)
1715 ::new((void*)__p) _Tp(__a0, __a1);
1717 template <class _A0, class _A1>
1718 _LIBCPP_INLINE_VISIBILITY
1720 construct(pointer __p, _A0& __a0, const _A1& __a1)
1722 ::new((void*)__p) _Tp(__a0, __a1);
1724 template <class _A0, class _A1>
1725 _LIBCPP_INLINE_VISIBILITY
1727 construct(pointer __p, const _A0& __a0, const _A1& __a1)
1729 ::new((void*)__p) _Tp(__a0, __a1);
1731 #endif // !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_VARIADICS)
1732 _LIBCPP_INLINE_VISIBILITY void destroy(pointer __p) {__p->~_Tp();}
1735 template <class _Tp, class _Up>
1736 inline _LIBCPP_INLINE_VISIBILITY
1737 bool operator==(const allocator<_Tp>&, const allocator<_Up>&) _NOEXCEPT {return true;}
1739 template <class _Tp, class _Up>
1740 inline _LIBCPP_INLINE_VISIBILITY
1741 bool operator!=(const allocator<_Tp>&, const allocator<_Up>&) _NOEXCEPT {return false;}
1743 template <class _OutputIterator, class _Tp>
1744 class _LIBCPP_VISIBLE raw_storage_iterator
1745 : public iterator<output_iterator_tag,
1746 _Tp, // purposefully not C++03
1747 ptrdiff_t, // purposefully not C++03
1748 _Tp*, // purposefully not C++03
1749 raw_storage_iterator<_OutputIterator, _Tp>&> // purposefully not C++03
1752 _OutputIterator __x_;
1754 _LIBCPP_INLINE_VISIBILITY explicit raw_storage_iterator(_OutputIterator __x) : __x_(__x) {}
1755 _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator*() {return *this;}
1756 _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator=(const _Tp& __element)
1757 {::new(&*__x_) _Tp(__element); return *this;}
1758 _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator++() {++__x_; return *this;}
1759 _LIBCPP_INLINE_VISIBILITY raw_storage_iterator operator++(int)
1760 {raw_storage_iterator __t(*this); ++__x_; return __t;}
1763 template <class _Tp>
1764 pair<_Tp*, ptrdiff_t>
1765 get_temporary_buffer(ptrdiff_t __n) _NOEXCEPT
1767 pair<_Tp*, ptrdiff_t> __r(0, 0);
1768 const ptrdiff_t __m = (~ptrdiff_t(0) ^
1769 ptrdiff_t(ptrdiff_t(1) << (sizeof(ptrdiff_t) * __CHAR_BIT__ - 1)))
1775 __r.first = static_cast<_Tp*>(::operator new(__n * sizeof(_Tp), nothrow));
1786 template <class _Tp>
1787 inline _LIBCPP_INLINE_VISIBILITY
1788 void return_temporary_buffer(_Tp* __p) _NOEXCEPT {::operator delete(__p);}
1790 template <class _Tp>
1797 class _LIBCPP_VISIBLE auto_ptr
1802 typedef _Tp element_type;
1804 _LIBCPP_INLINE_VISIBILITY explicit auto_ptr(_Tp* __p = 0) throw() : __ptr_(__p) {}
1805 _LIBCPP_INLINE_VISIBILITY auto_ptr(auto_ptr& __p) throw() : __ptr_(__p.release()) {}
1806 template<class _Up> _LIBCPP_INLINE_VISIBILITY auto_ptr(auto_ptr<_Up>& __p) throw()
1807 : __ptr_(__p.release()) {}
1808 _LIBCPP_INLINE_VISIBILITY auto_ptr& operator=(auto_ptr& __p) throw()
1809 {reset(__p.release()); return *this;}
1810 template<class _Up> _LIBCPP_INLINE_VISIBILITY auto_ptr& operator=(auto_ptr<_Up>& __p) throw()
1811 {reset(__p.release()); return *this;}
1812 _LIBCPP_INLINE_VISIBILITY auto_ptr& operator=(auto_ptr_ref<_Tp> __p) throw()
1813 {reset(__p.__ptr_); return *this;}
1814 _LIBCPP_INLINE_VISIBILITY ~auto_ptr() throw() {delete __ptr_;}
1816 _LIBCPP_INLINE_VISIBILITY _Tp& operator*() const throw()
1818 _LIBCPP_INLINE_VISIBILITY _Tp* operator->() const throw() {return __ptr_;}
1819 _LIBCPP_INLINE_VISIBILITY _Tp* get() const throw() {return __ptr_;}
1820 _LIBCPP_INLINE_VISIBILITY _Tp* release() throw()
1826 _LIBCPP_INLINE_VISIBILITY void reset(_Tp* __p = 0) throw()
1833 _LIBCPP_INLINE_VISIBILITY auto_ptr(auto_ptr_ref<_Tp> __p) throw() : __ptr_(__p.__ptr_) {}
1834 template<class _Up> _LIBCPP_INLINE_VISIBILITY operator auto_ptr_ref<_Up>() throw()
1835 {auto_ptr_ref<_Up> __t; __t.__ptr_ = release(); return __t;}
1836 template<class _Up> _LIBCPP_INLINE_VISIBILITY operator auto_ptr<_Up>() throw()
1837 {return auto_ptr<_Up>(release());}
1841 class _LIBCPP_VISIBLE auto_ptr<void>
1844 typedef void element_type;
1847 template <class _T1, class _T2, bool = is_same<typename remove_cv<_T1>::type,
1848 typename remove_cv<_T2>::type>::value,
1849 bool = is_empty<_T1>::value,
1850 bool = is_empty<_T2>::value>
1851 struct __libcpp_compressed_pair_switch;
1853 template <class _T1, class _T2, bool IsSame>
1854 struct __libcpp_compressed_pair_switch<_T1, _T2, IsSame, false, false> {enum {value = 0};};
1856 template <class _T1, class _T2, bool IsSame>
1857 struct __libcpp_compressed_pair_switch<_T1, _T2, IsSame, true, false> {enum {value = 1};};
1859 template <class _T1, class _T2, bool IsSame>
1860 struct __libcpp_compressed_pair_switch<_T1, _T2, IsSame, false, true> {enum {value = 2};};
1862 template <class _T1, class _T2>
1863 struct __libcpp_compressed_pair_switch<_T1, _T2, false, true, true> {enum {value = 3};};
1865 template <class _T1, class _T2>
1866 struct __libcpp_compressed_pair_switch<_T1, _T2, true, true, true> {enum {value = 1};};
1868 template <class _T1, class _T2, unsigned = __libcpp_compressed_pair_switch<_T1, _T2>::value>
1869 class __libcpp_compressed_pair_imp;
1871 template <class _T1, class _T2>
1872 class __libcpp_compressed_pair_imp<_T1, _T2, 0>
1878 typedef _T1 _T1_param;
1879 typedef _T2 _T2_param;
1881 typedef typename remove_reference<_T1>::type& _T1_reference;
1882 typedef typename remove_reference<_T2>::type& _T2_reference;
1884 typedef const typename remove_reference<_T1>::type& _T1_const_reference;
1885 typedef const typename remove_reference<_T2>::type& _T2_const_reference;
1887 _LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp() {}
1888 _LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T1_param __t1, int = 0)
1889 : __first_(_VSTD::forward<_T1_param>(__t1)) {}
1890 _LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T2_param __t2, int* = 0)
1891 : __second_(_VSTD::forward<_T2_param>(__t2)) {}
1892 _LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp(_T1_param __t1, _T2_param __t2)
1893 : __first_(_VSTD::forward<_T1_param>(__t1)), __second_(_VSTD::forward<_T2_param>(__t2)) {}
1895 #ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
1897 _LIBCPP_INLINE_VISIBILITY
1898 __libcpp_compressed_pair_imp(const __libcpp_compressed_pair_imp& __p)
1899 _NOEXCEPT_(is_nothrow_copy_constructible<_T1>::value &&
1900 is_nothrow_copy_constructible<_T2>::value)
1901 : __first_(__p.first()),
1902 __second_(__p.second()) {}
1904 _LIBCPP_INLINE_VISIBILITY
1905 __libcpp_compressed_pair_imp& operator=(const __libcpp_compressed_pair_imp& __p)
1906 _NOEXCEPT_(is_nothrow_copy_assignable<_T1>::value &&
1907 is_nothrow_copy_assignable<_T2>::value)
1909 __first_ = __p.first();
1910 __second_ = __p.second();
1914 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
1916 _LIBCPP_INLINE_VISIBILITY
1917 __libcpp_compressed_pair_imp(__libcpp_compressed_pair_imp&& __p)
1918 _NOEXCEPT_(is_nothrow_move_constructible<_T1>::value &&
1919 is_nothrow_move_constructible<_T2>::value)
1920 : __first_(_VSTD::forward<_T1>(__p.first())),
1921 __second_(_VSTD::forward<_T2>(__p.second())) {}
1923 _LIBCPP_INLINE_VISIBILITY
1924 __libcpp_compressed_pair_imp& operator=(__libcpp_compressed_pair_imp&& __p)
1925 _NOEXCEPT_(is_nothrow_move_assignable<_T1>::value &&
1926 is_nothrow_move_assignable<_T2>::value)
1928 __first_ = _VSTD::forward<_T1>(__p.first());
1929 __second_ = _VSTD::forward<_T2>(__p.second());
1933 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
1935 #endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
1937 _LIBCPP_INLINE_VISIBILITY _T1_reference first() _NOEXCEPT {return __first_;}
1938 _LIBCPP_INLINE_VISIBILITY _T1_const_reference first() const _NOEXCEPT {return __first_;}
1940 _LIBCPP_INLINE_VISIBILITY _T2_reference second() _NOEXCEPT {return __second_;}
1941 _LIBCPP_INLINE_VISIBILITY _T2_const_reference second() const _NOEXCEPT {return __second_;}
1943 _LIBCPP_INLINE_VISIBILITY void swap(__libcpp_compressed_pair_imp& __x)
1944 _NOEXCEPT_(__is_nothrow_swappable<_T1>::value &&
1945 __is_nothrow_swappable<_T1>::value)
1948 swap(__first_, __x.__first_);
1949 swap(__second_, __x.__second_);
1953 template <class _T1, class _T2>
1954 class __libcpp_compressed_pair_imp<_T1, _T2, 1>
1960 typedef _T1 _T1_param;
1961 typedef _T2 _T2_param;
1963 typedef _T1& _T1_reference;
1964 typedef typename remove_reference<_T2>::type& _T2_reference;
1966 typedef const _T1& _T1_const_reference;
1967 typedef const typename remove_reference<_T2>::type& _T2_const_reference;
1969 _LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp() {}
1970 _LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T1_param __t1, int = 0)
1971 : _T1(_VSTD::forward<_T1_param>(__t1)) {}
1972 _LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T2_param __t2, int* = 0)
1973 : __second_(_VSTD::forward<_T2_param>(__t2)) {}
1974 _LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp(_T1_param __t1, _T2_param __t2)
1975 : _T1(_VSTD::forward<_T1_param>(__t1)), __second_(_VSTD::forward<_T2_param>(__t2)) {}
1977 #ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
1979 _LIBCPP_INLINE_VISIBILITY
1980 __libcpp_compressed_pair_imp(const __libcpp_compressed_pair_imp& __p)
1981 _NOEXCEPT_(is_nothrow_copy_constructible<_T1>::value &&
1982 is_nothrow_copy_constructible<_T2>::value)
1983 : _T1(__p.first()), __second_(__p.second()) {}
1985 _LIBCPP_INLINE_VISIBILITY
1986 __libcpp_compressed_pair_imp& operator=(const __libcpp_compressed_pair_imp& __p)
1987 _NOEXCEPT_(is_nothrow_copy_assignable<_T1>::value &&
1988 is_nothrow_copy_assignable<_T2>::value)
1990 _T1::operator=(__p.first());
1991 __second_ = __p.second();
1995 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
1997 _LIBCPP_INLINE_VISIBILITY
1998 __libcpp_compressed_pair_imp(__libcpp_compressed_pair_imp&& __p)
1999 _NOEXCEPT_(is_nothrow_move_constructible<_T1>::value &&
2000 is_nothrow_move_constructible<_T2>::value)
2001 : _T1(_VSTD::move(__p.first())), __second_(_VSTD::forward<_T2>(__p.second())) {}
2003 _LIBCPP_INLINE_VISIBILITY
2004 __libcpp_compressed_pair_imp& operator=(__libcpp_compressed_pair_imp&& __p)
2005 _NOEXCEPT_(is_nothrow_move_assignable<_T1>::value &&
2006 is_nothrow_move_assignable<_T2>::value)
2008 _T1::operator=(_VSTD::move(__p.first()));
2009 __second_ = _VSTD::forward<_T2>(__p.second());
2013 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2015 #endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2017 _LIBCPP_INLINE_VISIBILITY _T1_reference first() _NOEXCEPT {return *this;}
2018 _LIBCPP_INLINE_VISIBILITY _T1_const_reference first() const _NOEXCEPT {return *this;}
2020 _LIBCPP_INLINE_VISIBILITY _T2_reference second() _NOEXCEPT {return __second_;}
2021 _LIBCPP_INLINE_VISIBILITY _T2_const_reference second() const _NOEXCEPT {return __second_;}
2023 _LIBCPP_INLINE_VISIBILITY void swap(__libcpp_compressed_pair_imp& __x)
2024 _NOEXCEPT_(__is_nothrow_swappable<_T1>::value &&
2025 __is_nothrow_swappable<_T1>::value)
2028 swap(__second_, __x.__second_);
2032 template <class _T1, class _T2>
2033 class __libcpp_compressed_pair_imp<_T1, _T2, 2>
2039 typedef _T1 _T1_param;
2040 typedef _T2 _T2_param;
2042 typedef typename remove_reference<_T1>::type& _T1_reference;
2043 typedef _T2& _T2_reference;
2045 typedef const typename remove_reference<_T1>::type& _T1_const_reference;
2046 typedef const _T2& _T2_const_reference;
2048 _LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp() {}
2049 _LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T1_param __t1)
2050 : __first_(_VSTD::forward<_T1_param>(__t1)) {}
2051 _LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T2_param __t2)
2052 : _T2(_VSTD::forward<_T2_param>(__t2)) {}
2053 _LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp(_T1_param __t1, _T2_param __t2)
2054 _NOEXCEPT_(is_nothrow_move_constructible<_T1>::value &&
2055 is_nothrow_move_constructible<_T2>::value)
2056 : _T2(_VSTD::forward<_T2_param>(__t2)), __first_(_VSTD::forward<_T1_param>(__t1)) {}
2058 #ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2060 _LIBCPP_INLINE_VISIBILITY
2061 __libcpp_compressed_pair_imp(const __libcpp_compressed_pair_imp& __p)
2062 _NOEXCEPT_(is_nothrow_copy_constructible<_T1>::value &&
2063 is_nothrow_copy_constructible<_T2>::value)
2064 : _T2(__p.second()), __first_(__p.first()) {}
2066 _LIBCPP_INLINE_VISIBILITY
2067 __libcpp_compressed_pair_imp& operator=(const __libcpp_compressed_pair_imp& __p)
2068 _NOEXCEPT_(is_nothrow_copy_assignable<_T1>::value &&
2069 is_nothrow_copy_assignable<_T2>::value)
2071 _T2::operator=(__p.second());
2072 __first_ = __p.first();
2076 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2078 _LIBCPP_INLINE_VISIBILITY
2079 __libcpp_compressed_pair_imp(__libcpp_compressed_pair_imp&& __p)
2080 _NOEXCEPT_(is_nothrow_move_constructible<_T1>::value &&
2081 is_nothrow_move_constructible<_T2>::value)
2082 : _T2(_VSTD::forward<_T2>(__p.second())), __first_(_VSTD::move(__p.first())) {}
2084 _LIBCPP_INLINE_VISIBILITY
2085 __libcpp_compressed_pair_imp& operator=(__libcpp_compressed_pair_imp&& __p)
2086 _NOEXCEPT_(is_nothrow_move_assignable<_T1>::value &&
2087 is_nothrow_move_assignable<_T2>::value)
2089 _T2::operator=(_VSTD::forward<_T2>(__p.second()));
2090 __first_ = _VSTD::move(__p.first());
2094 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2096 #endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2098 _LIBCPP_INLINE_VISIBILITY _T1_reference first() _NOEXCEPT {return __first_;}
2099 _LIBCPP_INLINE_VISIBILITY _T1_const_reference first() const _NOEXCEPT {return __first_;}
2101 _LIBCPP_INLINE_VISIBILITY _T2_reference second() _NOEXCEPT {return *this;}
2102 _LIBCPP_INLINE_VISIBILITY _T2_const_reference second() const _NOEXCEPT {return *this;}
2104 _LIBCPP_INLINE_VISIBILITY void swap(__libcpp_compressed_pair_imp& __x)
2105 _NOEXCEPT_(__is_nothrow_swappable<_T1>::value &&
2106 __is_nothrow_swappable<_T1>::value)
2109 swap(__first_, __x.__first_);
2113 template <class _T1, class _T2>
2114 class __libcpp_compressed_pair_imp<_T1, _T2, 3>
2119 typedef _T1 _T1_param;
2120 typedef _T2 _T2_param;
2122 typedef _T1& _T1_reference;
2123 typedef _T2& _T2_reference;
2125 typedef const _T1& _T1_const_reference;
2126 typedef const _T2& _T2_const_reference;
2128 _LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp() {}
2129 _LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T1_param __t1)
2130 : _T1(_VSTD::forward<_T1_param>(__t1)) {}
2131 _LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T2_param __t2)
2132 : _T2(_VSTD::forward<_T2_param>(__t2)) {}
2133 _LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp(_T1_param __t1, _T2_param __t2)
2134 : _T1(_VSTD::forward<_T1_param>(__t1)), _T2(_VSTD::forward<_T2_param>(__t2)) {}
2136 #ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2138 _LIBCPP_INLINE_VISIBILITY
2139 __libcpp_compressed_pair_imp(const __libcpp_compressed_pair_imp& __p)
2140 _NOEXCEPT_(is_nothrow_copy_constructible<_T1>::value &&
2141 is_nothrow_copy_constructible<_T2>::value)
2142 : _T1(__p.first()), _T2(__p.second()) {}
2144 _LIBCPP_INLINE_VISIBILITY
2145 __libcpp_compressed_pair_imp& operator=(const __libcpp_compressed_pair_imp& __p)
2146 _NOEXCEPT_(is_nothrow_copy_assignable<_T1>::value &&
2147 is_nothrow_copy_assignable<_T2>::value)
2149 _T1::operator=(__p.first());
2150 _T2::operator=(__p.second());
2154 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2156 _LIBCPP_INLINE_VISIBILITY
2157 __libcpp_compressed_pair_imp(__libcpp_compressed_pair_imp&& __p)
2158 _NOEXCEPT_(is_nothrow_move_constructible<_T1>::value &&
2159 is_nothrow_move_constructible<_T2>::value)
2160 : _T1(_VSTD::move(__p.first())), _T2(_VSTD::move(__p.second())) {}
2162 _LIBCPP_INLINE_VISIBILITY
2163 __libcpp_compressed_pair_imp& operator=(__libcpp_compressed_pair_imp&& __p)
2164 _NOEXCEPT_(is_nothrow_move_assignable<_T1>::value &&
2165 is_nothrow_move_assignable<_T2>::value)
2167 _T1::operator=(_VSTD::move(__p.first()));
2168 _T2::operator=(_VSTD::move(__p.second()));
2172 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2174 #endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2176 _LIBCPP_INLINE_VISIBILITY _T1_reference first() _NOEXCEPT {return *this;}
2177 _LIBCPP_INLINE_VISIBILITY _T1_const_reference first() const _NOEXCEPT {return *this;}
2179 _LIBCPP_INLINE_VISIBILITY _T2_reference second() _NOEXCEPT {return *this;}
2180 _LIBCPP_INLINE_VISIBILITY _T2_const_reference second() const _NOEXCEPT {return *this;}
2182 _LIBCPP_INLINE_VISIBILITY void swap(__libcpp_compressed_pair_imp& __x)
2183 _NOEXCEPT_(__is_nothrow_swappable<_T1>::value &&
2184 __is_nothrow_swappable<_T1>::value)
2189 template <class _T1, class _T2>
2190 class __compressed_pair
2191 : private __libcpp_compressed_pair_imp<_T1, _T2>
2193 typedef __libcpp_compressed_pair_imp<_T1, _T2> base;
2195 typedef typename base::_T1_param _T1_param;
2196 typedef typename base::_T2_param _T2_param;
2198 typedef typename base::_T1_reference _T1_reference;
2199 typedef typename base::_T2_reference _T2_reference;
2201 typedef typename base::_T1_const_reference _T1_const_reference;
2202 typedef typename base::_T2_const_reference _T2_const_reference;
2204 _LIBCPP_INLINE_VISIBILITY __compressed_pair() {}
2205 _LIBCPP_INLINE_VISIBILITY explicit __compressed_pair(_T1_param __t1, int = 0)
2206 : base(_VSTD::forward<_T1_param>(__t1)) {}
2207 _LIBCPP_INLINE_VISIBILITY explicit __compressed_pair(_T2_param __t2, int* = 0)
2208 : base(_VSTD::forward<_T2_param>(__t2)) {}
2209 _LIBCPP_INLINE_VISIBILITY __compressed_pair(_T1_param __t1, _T2_param __t2)
2210 : base(_VSTD::forward<_T1_param>(__t1), _VSTD::forward<_T2_param>(__t2)) {}
2212 #ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2214 _LIBCPP_INLINE_VISIBILITY
2215 __compressed_pair(const __compressed_pair& __p)
2216 _NOEXCEPT_(is_nothrow_copy_constructible<_T1>::value &&
2217 is_nothrow_copy_constructible<_T2>::value)
2220 _LIBCPP_INLINE_VISIBILITY
2221 __compressed_pair& operator=(const __compressed_pair& __p)
2222 _NOEXCEPT_(is_nothrow_copy_assignable<_T1>::value &&
2223 is_nothrow_copy_assignable<_T2>::value)
2225 base::operator=(__p);
2229 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2230 _LIBCPP_INLINE_VISIBILITY
2231 __compressed_pair(__compressed_pair&& __p)
2232 _NOEXCEPT_(is_nothrow_move_constructible<_T1>::value &&
2233 is_nothrow_move_constructible<_T2>::value)
2234 : base(_VSTD::move(__p)) {}
2236 _LIBCPP_INLINE_VISIBILITY
2237 __compressed_pair& operator=(__compressed_pair&& __p)
2238 _NOEXCEPT_(is_nothrow_move_assignable<_T1>::value &&
2239 is_nothrow_move_assignable<_T2>::value)
2241 base::operator=(_VSTD::move(__p));
2244 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2246 #endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2248 _LIBCPP_INLINE_VISIBILITY _T1_reference first() _NOEXCEPT {return base::first();}
2249 _LIBCPP_INLINE_VISIBILITY _T1_const_reference first() const _NOEXCEPT {return base::first();}
2251 _LIBCPP_INLINE_VISIBILITY _T2_reference second() _NOEXCEPT {return base::second();}
2252 _LIBCPP_INLINE_VISIBILITY _T2_const_reference second() const _NOEXCEPT {return base::second();}
2254 _LIBCPP_INLINE_VISIBILITY void swap(__compressed_pair& __x)
2255 _NOEXCEPT_(__is_nothrow_swappable<_T1>::value &&
2256 __is_nothrow_swappable<_T1>::value)
2260 template <class _T1, class _T2>
2261 inline _LIBCPP_INLINE_VISIBILITY
2263 swap(__compressed_pair<_T1, _T2>& __x, __compressed_pair<_T1, _T2>& __y)
2264 _NOEXCEPT_(__is_nothrow_swappable<_T1>::value &&
2265 __is_nothrow_swappable<_T1>::value)
2268 template <class _Tp>
2269 struct _LIBCPP_VISIBLE default_delete
2271 _LIBCPP_INLINE_VISIBILITY default_delete() _NOEXCEPT {}
2272 template <class _Up>
2273 _LIBCPP_INLINE_VISIBILITY default_delete(const default_delete<_Up>&,
2274 typename enable_if<is_convertible<_Up*, _Tp*>::value>::type* = 0) _NOEXCEPT {}
2275 _LIBCPP_INLINE_VISIBILITY void operator() (_Tp* __ptr) const _NOEXCEPT
2277 static_assert(sizeof(_Tp) > 0, "default_delete can not delete incomplete type");
2282 template <class _Tp>
2283 struct _LIBCPP_VISIBLE default_delete<_Tp[]>
2285 _LIBCPP_INLINE_VISIBILITY void operator() (_Tp* __ptr) const _NOEXCEPT
2287 static_assert(sizeof(_Tp) > 0, "default_delete can not delete incomplete type");
2291 template <class _Up> void operator() (_Up*) const;
2294 template <class _Tp, class _Dp = default_delete<_Tp> >
2295 class _LIBCPP_VISIBLE unique_ptr
2298 typedef _Tp element_type;
2299 typedef _Dp deleter_type;
2300 typedef typename __pointer_type<_Tp, deleter_type>::type pointer;
2302 __compressed_pair<pointer, deleter_type> __ptr_;
2304 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2305 unique_ptr(const unique_ptr&);
2306 unique_ptr& operator=(const unique_ptr&);
2307 template <class _Up, class _Ep>
2308 unique_ptr(const unique_ptr<_Up, _Ep>&);
2309 template <class _Up, class _Ep>
2310 unique_ptr& operator=(const unique_ptr<_Up, _Ep>&);
2311 #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2312 unique_ptr(unique_ptr&);
2313 template <class _Up, class _Ep>
2314 unique_ptr(unique_ptr<_Up, _Ep>&);
2315 unique_ptr& operator=(unique_ptr&);
2316 template <class _Up, class _Ep>
2317 unique_ptr& operator=(unique_ptr<_Up, _Ep>&);
2318 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2320 struct __nat {int __for_bool_;};
2322 typedef typename remove_reference<deleter_type>::type& _Dp_reference;
2323 typedef const typename remove_reference<deleter_type>::type& _Dp_const_reference;
2325 _LIBCPP_INLINE_VISIBILITY unique_ptr() _NOEXCEPT
2328 static_assert(!is_pointer<deleter_type>::value,
2329 "unique_ptr constructed with null function pointer deleter");
2331 _LIBCPP_INLINE_VISIBILITY unique_ptr(nullptr_t) _NOEXCEPT
2334 static_assert(!is_pointer<deleter_type>::value,
2335 "unique_ptr constructed with null function pointer deleter");
2337 _LIBCPP_INLINE_VISIBILITY explicit unique_ptr(pointer __p) _NOEXCEPT
2338 : __ptr_(_VSTD::move(__p))
2340 static_assert(!is_pointer<deleter_type>::value,
2341 "unique_ptr constructed with null function pointer deleter");
2344 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2345 _LIBCPP_INLINE_VISIBILITY unique_ptr(pointer __p, typename conditional<
2346 is_reference<deleter_type>::value,
2348 typename add_lvalue_reference<const deleter_type>::type>::type __d)
2350 : __ptr_(__p, __d) {}
2352 _LIBCPP_INLINE_VISIBILITY unique_ptr(pointer __p, typename remove_reference<deleter_type>::type&& __d)
2354 : __ptr_(__p, _VSTD::move(__d))
2356 static_assert(!is_reference<deleter_type>::value, "rvalue deleter bound to reference");
2358 _LIBCPP_INLINE_VISIBILITY unique_ptr(unique_ptr&& __u) _NOEXCEPT
2359 : __ptr_(__u.release(), _VSTD::forward<deleter_type>(__u.get_deleter())) {}
2360 template <class _Up, class _Ep>
2361 _LIBCPP_INLINE_VISIBILITY
2362 unique_ptr(unique_ptr<_Up, _Ep>&& __u,
2365 !is_array<_Up>::value &&
2366 is_convertible<typename unique_ptr<_Up, _Ep>::pointer, pointer>::value &&
2367 is_convertible<_Ep, deleter_type>::value &&
2369 !is_reference<deleter_type>::value ||
2370 is_same<deleter_type, _Ep>::value
2373 >::type = __nat()) _NOEXCEPT
2374 : __ptr_(__u.release(), _VSTD::forward<_Ep>(__u.get_deleter())) {}
2376 template <class _Up>
2377 _LIBCPP_INLINE_VISIBILITY unique_ptr(auto_ptr<_Up>&& __p,
2379 is_convertible<_Up*, _Tp*>::value &&
2380 is_same<_Dp, default_delete<_Tp> >::value,
2382 >::type = __nat()) _NOEXCEPT
2383 : __ptr_(__p.release())
2387 _LIBCPP_INLINE_VISIBILITY unique_ptr& operator=(unique_ptr&& __u) _NOEXCEPT
2389 reset(__u.release());
2390 __ptr_.second() = _VSTD::forward<deleter_type>(__u.get_deleter());
2394 template <class _Up, class _Ep>
2395 _LIBCPP_INLINE_VISIBILITY
2398 !is_array<_Up>::value,
2401 operator=(unique_ptr<_Up, _Ep>&& __u) _NOEXCEPT
2403 reset(__u.release());
2404 __ptr_.second() = _VSTD::forward<_Ep>(__u.get_deleter());
2407 #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2409 _LIBCPP_INLINE_VISIBILITY operator __rv<unique_ptr>()
2411 return __rv<unique_ptr>(*this);
2414 _LIBCPP_INLINE_VISIBILITY unique_ptr(__rv<unique_ptr> __u)
2415 : __ptr_(__u->release(), _VSTD::forward<deleter_type>(__u->get_deleter())) {}
2417 template <class _Up, class _Ep>
2418 _LIBCPP_INLINE_VISIBILITY unique_ptr& operator=(unique_ptr<_Up, _Ep> __u)
2420 reset(__u.release());
2421 __ptr_.second() = _VSTD::forward<deleter_type>(__u.get_deleter());
2425 _LIBCPP_INLINE_VISIBILITY unique_ptr(pointer __p, deleter_type __d)
2426 : __ptr_(_VSTD::move(__p), _VSTD::move(__d)) {}
2428 template <class _Up>
2429 _LIBCPP_INLINE_VISIBILITY
2431 is_convertible<_Up*, _Tp*>::value &&
2432 is_same<_Dp, default_delete<_Tp> >::value,
2435 operator=(auto_ptr<_Up> __p)
2436 {reset(__p.release()); return *this;}
2438 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2439 _LIBCPP_INLINE_VISIBILITY ~unique_ptr() {reset();}
2441 _LIBCPP_INLINE_VISIBILITY unique_ptr& operator=(nullptr_t) _NOEXCEPT
2447 _LIBCPP_INLINE_VISIBILITY typename add_lvalue_reference<_Tp>::type operator*() const
2448 {return *__ptr_.first();}
2449 _LIBCPP_INLINE_VISIBILITY pointer operator->() const _NOEXCEPT {return __ptr_.first();}
2450 _LIBCPP_INLINE_VISIBILITY pointer get() const _NOEXCEPT {return __ptr_.first();}
2451 _LIBCPP_INLINE_VISIBILITY _Dp_reference get_deleter() _NOEXCEPT
2452 {return __ptr_.second();}
2453 _LIBCPP_INLINE_VISIBILITY _Dp_const_reference get_deleter() const _NOEXCEPT
2454 {return __ptr_.second();}
2455 _LIBCPP_INLINE_VISIBILITY operator int __nat::*() const
2457 {return __ptr_.first() ? &__nat::__for_bool_ : 0;}
2459 _LIBCPP_INLINE_VISIBILITY pointer release() _NOEXCEPT
2461 pointer __t = __ptr_.first();
2462 __ptr_.first() = pointer();
2466 _LIBCPP_INLINE_VISIBILITY void reset(pointer __p = pointer()) _NOEXCEPT
2468 pointer __tmp = __ptr_.first();
2469 __ptr_.first() = __p;
2471 __ptr_.second()(__tmp);
2474 _LIBCPP_INLINE_VISIBILITY void swap(unique_ptr& __u) _NOEXCEPT
2475 {__ptr_.swap(__u.__ptr_);}
2478 template <class _Tp, class _Dp>
2479 class _LIBCPP_VISIBLE unique_ptr<_Tp[], _Dp>
2482 typedef _Tp element_type;
2483 typedef _Dp deleter_type;
2484 typedef typename __pointer_type<_Tp, deleter_type>::type pointer;
2486 __compressed_pair<pointer, deleter_type> __ptr_;
2488 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2489 unique_ptr(const unique_ptr&);
2490 unique_ptr& operator=(const unique_ptr&);
2491 #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2492 unique_ptr(unique_ptr&);
2493 template <class _Up>
2494 unique_ptr(unique_ptr<_Up>&);
2495 unique_ptr& operator=(unique_ptr&);
2496 template <class _Up>
2497 unique_ptr& operator=(unique_ptr<_Up>&);
2498 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2500 struct __nat {int __for_bool_;};
2502 typedef typename remove_reference<deleter_type>::type& _Dp_reference;
2503 typedef const typename remove_reference<deleter_type>::type& _Dp_const_reference;
2505 _LIBCPP_INLINE_VISIBILITY unique_ptr() _NOEXCEPT
2508 static_assert(!is_pointer<deleter_type>::value,
2509 "unique_ptr constructed with null function pointer deleter");
2511 _LIBCPP_INLINE_VISIBILITY unique_ptr(nullptr_t) _NOEXCEPT
2514 static_assert(!is_pointer<deleter_type>::value,
2515 "unique_ptr constructed with null function pointer deleter");
2517 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2519 class = typename enable_if<is_same<_P, pointer>::value>::type
2521 _LIBCPP_INLINE_VISIBILITY explicit unique_ptr(_P __p) _NOEXCEPT
2524 static_assert(!is_pointer<deleter_type>::value,
2525 "unique_ptr constructed with null function pointer deleter");
2529 class = typename enable_if<is_same<_P, pointer>::value>::type
2531 _LIBCPP_INLINE_VISIBILITY unique_ptr(_P __p, typename conditional<
2532 is_reference<deleter_type>::value,
2534 typename add_lvalue_reference<const deleter_type>::type>::type __d)
2536 : __ptr_(__p, __d) {}
2538 _LIBCPP_INLINE_VISIBILITY unique_ptr(nullptr_t, typename conditional<
2539 is_reference<deleter_type>::value,
2541 typename add_lvalue_reference<const deleter_type>::type>::type __d)
2543 : __ptr_(pointer(), __d) {}
2546 class = typename enable_if<is_same<_P, pointer>::value ||
2547 is_same<_P, nullptr_t>::value>::type
2549 _LIBCPP_INLINE_VISIBILITY unique_ptr(_P __p, typename remove_reference<deleter_type>::type&& __d)
2551 : __ptr_(__p, _VSTD::move(__d))
2553 static_assert(!is_reference<deleter_type>::value, "rvalue deleter bound to reference");
2556 _LIBCPP_INLINE_VISIBILITY unique_ptr(nullptr_t, typename remove_reference<deleter_type>::type&& __d)
2558 : __ptr_(pointer(), _VSTD::move(__d))
2560 static_assert(!is_reference<deleter_type>::value, "rvalue deleter bound to reference");
2563 _LIBCPP_INLINE_VISIBILITY unique_ptr(unique_ptr&& __u) _NOEXCEPT
2564 : __ptr_(__u.release(), _VSTD::forward<deleter_type>(__u.get_deleter())) {}
2566 _LIBCPP_INLINE_VISIBILITY unique_ptr& operator=(unique_ptr&& __u) _NOEXCEPT
2568 reset(__u.release());
2569 __ptr_.second() = _VSTD::forward<deleter_type>(__u.get_deleter());
2572 #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2574 _LIBCPP_INLINE_VISIBILITY explicit unique_ptr(pointer __p)
2577 static_assert(!is_pointer<deleter_type>::value,
2578 "unique_ptr constructed with null function pointer deleter");
2581 _LIBCPP_INLINE_VISIBILITY unique_ptr(pointer __p, deleter_type __d)
2582 : __ptr_(__p, _VSTD::forward<deleter_type>(__d)) {}
2584 _LIBCPP_INLINE_VISIBILITY unique_ptr(nullptr_t, deleter_type __d)
2585 : __ptr_(pointer(), _VSTD::forward<deleter_type>(__d)) {}
2587 _LIBCPP_INLINE_VISIBILITY operator __rv<unique_ptr>()
2589 return __rv<unique_ptr>(*this);
2592 _LIBCPP_INLINE_VISIBILITY unique_ptr(__rv<unique_ptr> __u)
2593 : __ptr_(__u->release(), _VSTD::forward<deleter_type>(__u->get_deleter())) {}
2595 _LIBCPP_INLINE_VISIBILITY unique_ptr& operator=(__rv<unique_ptr> __u)
2597 reset(__u->release());
2598 __ptr_.second() = _VSTD::forward<deleter_type>(__u->get_deleter());
2602 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2603 _LIBCPP_INLINE_VISIBILITY ~unique_ptr() {reset();}
2605 _LIBCPP_INLINE_VISIBILITY unique_ptr& operator=(nullptr_t) _NOEXCEPT
2611 _LIBCPP_INLINE_VISIBILITY typename add_lvalue_reference<_Tp>::type operator[](size_t __i) const
2612 {return __ptr_.first()[__i];}
2613 _LIBCPP_INLINE_VISIBILITY pointer get() const _NOEXCEPT {return __ptr_.first();}
2614 _LIBCPP_INLINE_VISIBILITY _Dp_reference get_deleter() _NOEXCEPT
2615 {return __ptr_.second();}
2616 _LIBCPP_INLINE_VISIBILITY _Dp_const_reference get_deleter() const _NOEXCEPT
2617 {return __ptr_.second();}
2618 _LIBCPP_INLINE_VISIBILITY operator int __nat::*() const _NOEXCEPT
2619 {return __ptr_.first() ? &__nat::__for_bool_ : 0;}
2621 _LIBCPP_INLINE_VISIBILITY pointer release() _NOEXCEPT
2623 pointer __t = __ptr_.first();
2624 __ptr_.first() = pointer();
2628 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2630 class = typename enable_if<is_same<_P, pointer>::value>::type
2632 _LIBCPP_INLINE_VISIBILITY void reset(_P __p) _NOEXCEPT
2634 pointer __tmp = __ptr_.first();
2635 __ptr_.first() = __p;
2637 __ptr_.second()(__tmp);
2639 _LIBCPP_INLINE_VISIBILITY void reset(nullptr_t) _NOEXCEPT
2641 pointer __tmp = __ptr_.first();
2642 __ptr_.first() = nullptr;
2644 __ptr_.second()(__tmp);
2646 _LIBCPP_INLINE_VISIBILITY void reset() _NOEXCEPT
2648 pointer __tmp = __ptr_.first();
2649 __ptr_.first() = nullptr;
2651 __ptr_.second()(__tmp);
2653 #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2654 _LIBCPP_INLINE_VISIBILITY void reset(pointer __p = pointer())
2656 pointer __tmp = __ptr_.first();
2657 __ptr_.first() = __p;
2659 __ptr_.second()(__tmp);
2661 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2663 _LIBCPP_INLINE_VISIBILITY void swap(unique_ptr& __u) {__ptr_.swap(__u.__ptr_);}
2666 #ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2667 template <class _Up>
2668 explicit unique_ptr(_Up);
2669 template <class _Up>
2671 typename conditional<
2672 is_reference<deleter_type>::value,
2674 typename add_lvalue_reference<const deleter_type>::type>::type,
2677 is_convertible<_Up, pointer>::value,
2680 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2683 template <class _Tp, class _Dp>
2684 inline _LIBCPP_INLINE_VISIBILITY
2686 swap(unique_ptr<_Tp, _Dp>& __x, unique_ptr<_Tp, _Dp>& __y) _NOEXCEPT {__x.swap(__y);}
2688 template <class _T1, class _D1, class _T2, class _D2>
2689 inline _LIBCPP_INLINE_VISIBILITY
2691 operator==(const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return __x.get() == __y.get();}
2693 template <class _T1, class _D1, class _T2, class _D2>
2694 inline _LIBCPP_INLINE_VISIBILITY
2696 operator!=(const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return !(__x == __y);}
2698 template <class _T1, class _D1, class _T2, class _D2>
2699 inline _LIBCPP_INLINE_VISIBILITY
2701 operator< (const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return __x.get() < __y.get();}
2703 template <class _T1, class _D1, class _T2, class _D2>
2704 inline _LIBCPP_INLINE_VISIBILITY
2706 operator> (const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return __y < __x;}
2708 template <class _T1, class _D1, class _T2, class _D2>
2709 inline _LIBCPP_INLINE_VISIBILITY
2711 operator<=(const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return !(__y < __x);}
2713 template <class _T1, class _D1, class _T2, class _D2>
2714 inline _LIBCPP_INLINE_VISIBILITY
2716 operator>=(const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return !(__x < __y);}
2718 template <class _Tp> struct hash;
2721 struct _LIBCPP_VISIBLE hash<_Tp*>
2722 : public unary_function<_Tp*, size_t>
2724 _LIBCPP_INLINE_VISIBILITY
2725 size_t operator()(_Tp* __v) const _NOEXCEPT
2727 const size_t* const __p = reinterpret_cast<const size_t*>(&__v);
2732 template <class _Tp, class _Dp>
2733 struct _LIBCPP_VISIBLE hash<unique_ptr<_Tp, _Dp> >
2735 typedef unique_ptr<_Tp, _Dp> argument_type;
2736 typedef size_t result_type;
2737 _LIBCPP_INLINE_VISIBILITY
2738 result_type operator()(const argument_type& __ptr) const _NOEXCEPT
2740 typedef typename argument_type::pointer pointer;
2741 return hash<pointer>()(__ptr.get());
2750 template <class _Tp>
2751 _LIBCPP_INLINE_VISIBILITY void __process(_Tp* __p, false_type) _NOEXCEPT
2752 {for (size_t __i = 0; __i < size; ++__i, ++__p) __p->~_Tp();}
2754 template <class _Tp>
2755 _LIBCPP_INLINE_VISIBILITY void __process(_Tp*, true_type) _NOEXCEPT
2758 _LIBCPP_INLINE_VISIBILITY void __incr(false_type) _NOEXCEPT
2760 _LIBCPP_INLINE_VISIBILITY void __incr(true_type) _NOEXCEPT
2763 _LIBCPP_INLINE_VISIBILITY void __set(size_t __s, false_type) _NOEXCEPT
2765 _LIBCPP_INLINE_VISIBILITY void __set(size_t, true_type) _NOEXCEPT
2768 _LIBCPP_INLINE_VISIBILITY explicit __destruct_n(size_t __s) _NOEXCEPT
2771 template <class _Tp>
2772 _LIBCPP_INLINE_VISIBILITY void __incr(_Tp*) _NOEXCEPT
2773 {__incr(integral_constant<bool, is_trivially_destructible<_Tp>::value>());}
2775 template <class _Tp>
2776 _LIBCPP_INLINE_VISIBILITY void __set(size_t __s, _Tp*) _NOEXCEPT
2777 {__set(__s, integral_constant<bool, is_trivially_destructible<_Tp>::value>());}
2779 template <class _Tp>
2780 _LIBCPP_INLINE_VISIBILITY void operator()(_Tp* __p) _NOEXCEPT
2781 {__process(__p, integral_constant<bool, is_trivially_destructible<_Tp>::value>());}
2784 template <class _Alloc>
2785 class __allocator_destructor
2787 typedef allocator_traits<_Alloc> __alloc_traits;
2789 typedef typename __alloc_traits::pointer pointer;
2790 typedef typename __alloc_traits::size_type size_type;
2795 _LIBCPP_INLINE_VISIBILITY __allocator_destructor(_Alloc& __a, size_type __s)
2797 : __alloc_(__a), __s_(__s) {}
2798 _LIBCPP_INLINE_VISIBILITY
2799 void operator()(pointer __p) _NOEXCEPT
2800 {__alloc_traits::deallocate(__alloc_, __p, __s_);}
2803 template <class _InputIterator, class _ForwardIterator>
2805 uninitialized_copy(_InputIterator __f, _InputIterator __l, _ForwardIterator __r)
2807 __destruct_n __d(0);
2808 typedef typename iterator_traits<_ForwardIterator>::value_type value_type;
2809 unique_ptr<value_type, __destruct_n&> __h(&*__r, __d);
2810 for (; __f != __l; ++__f, ++__r, __d.__incr((value_type*)0))
2811 ::new(&*__r) value_type(*__f);
2816 template <class _InputIterator, class _Size, class _ForwardIterator>
2818 uninitialized_copy_n(_InputIterator __f, _Size __n, _ForwardIterator __r)
2820 __destruct_n __d(0);
2821 typedef typename iterator_traits<_ForwardIterator>::value_type value_type;
2822 unique_ptr<value_type, __destruct_n&> __h(&*__r, __d);
2823 for (; __n > 0; ++__f, ++__r, __d.__incr((value_type*)0), --__n)
2824 ::new(&*__r) value_type(*__f);
2829 template <class _ForwardIterator, class _Tp>
2831 uninitialized_fill(_ForwardIterator __f, _ForwardIterator __l, const _Tp& __x)
2833 __destruct_n __d(0);
2834 typedef typename iterator_traits<_ForwardIterator>::value_type value_type;
2835 unique_ptr<value_type, __destruct_n&> __h(&*__f, __d);
2836 for (; __f != __l; ++__f, __d.__incr((value_type*)0))
2837 ::new(&*__f) value_type(__x);
2841 template <class _ForwardIterator, class _Size, class _Tp>
2843 uninitialized_fill_n(_ForwardIterator __f, _Size __n, const _Tp& __x)
2845 __destruct_n __d(0);
2846 typedef typename iterator_traits<_ForwardIterator>::value_type value_type;
2847 unique_ptr<value_type, __destruct_n&> __h(&*__f, __d);
2848 for (; __n > 0; ++__f, --__n, __d.__incr((value_type*)0))
2849 ::new(&*__f) value_type(__x);
2854 class _LIBCPP_EXCEPTION_ABI bad_weak_ptr
2855 : public std::exception
2858 virtual ~bad_weak_ptr() _NOEXCEPT;
2859 virtual const char* what() const _NOEXCEPT;
2862 template<class _Tp> class weak_ptr;
2864 class __shared_count
2866 __shared_count(const __shared_count&);
2867 __shared_count& operator=(const __shared_count&);
2870 long __shared_owners_;
2871 virtual ~__shared_count();
2873 virtual void __on_zero_shared() _NOEXCEPT = 0;
2876 _LIBCPP_INLINE_VISIBILITY
2877 explicit __shared_count(long __refs = 0) _NOEXCEPT
2878 : __shared_owners_(__refs) {}
2880 void __add_shared() _NOEXCEPT;
2881 bool __release_shared() _NOEXCEPT;
2882 _LIBCPP_INLINE_VISIBILITY
2883 long use_count() const _NOEXCEPT {return __shared_owners_ + 1;}
2886 class __shared_weak_count
2887 : private __shared_count
2889 long __shared_weak_owners_;
2892 _LIBCPP_INLINE_VISIBILITY
2893 explicit __shared_weak_count(long __refs = 0) _NOEXCEPT
2894 : __shared_count(__refs),
2895 __shared_weak_owners_(__refs) {}
2897 virtual ~__shared_weak_count();
2900 void __add_shared() _NOEXCEPT;
2901 void __add_weak() _NOEXCEPT;
2902 void __release_shared() _NOEXCEPT;
2903 void __release_weak() _NOEXCEPT;
2904 _LIBCPP_INLINE_VISIBILITY
2905 long use_count() const _NOEXCEPT {return __shared_count::use_count();}
2906 __shared_weak_count* lock() _NOEXCEPT;
2908 virtual const void* __get_deleter(const type_info&) const _NOEXCEPT;
2910 virtual void __on_zero_shared_weak() _NOEXCEPT = 0;
2913 template <class _Tp, class _Dp, class _Alloc>
2914 class __shared_ptr_pointer
2915 : public __shared_weak_count
2917 __compressed_pair<__compressed_pair<_Tp, _Dp>, _Alloc> __data_;
2919 _LIBCPP_INLINE_VISIBILITY
2920 __shared_ptr_pointer(_Tp __p, _Dp __d, _Alloc __a)
2921 : __data_(__compressed_pair<_Tp, _Dp>(__p, _VSTD::move(__d)), _VSTD::move(__a)) {}
2923 #ifndef _LIBCPP_NO_RTTI
2924 virtual const void* __get_deleter(const type_info&) const _NOEXCEPT;
2928 virtual void __on_zero_shared() _NOEXCEPT;
2929 virtual void __on_zero_shared_weak() _NOEXCEPT;
2932 #ifndef _LIBCPP_NO_RTTI
2934 template <class _Tp, class _Dp, class _Alloc>
2936 __shared_ptr_pointer<_Tp, _Dp, _Alloc>::__get_deleter(const type_info& __t) const _NOEXCEPT
2938 return __t == typeid(_Dp) ? &__data_.first().second() : 0;
2941 #endif // _LIBCPP_NO_RTTI
2943 template <class _Tp, class _Dp, class _Alloc>
2945 __shared_ptr_pointer<_Tp, _Dp, _Alloc>::__on_zero_shared() _NOEXCEPT
2947 __data_.first().second()(__data_.first().first());
2948 __data_.first().second().~_Dp();
2951 template <class _Tp, class _Dp, class _Alloc>
2953 __shared_ptr_pointer<_Tp, _Dp, _Alloc>::__on_zero_shared_weak() _NOEXCEPT
2955 typename _Alloc::template rebind<__shared_ptr_pointer>::other __a(__data_.second());
2956 __data_.second().~_Alloc();
2957 __a.deallocate(this, 1);
2960 template <class _Tp, class _Alloc>
2961 class __shared_ptr_emplace
2962 : public __shared_weak_count
2964 __compressed_pair<_Alloc, _Tp> __data_;
2966 #ifndef _LIBCPP_HAS_NO_VARIADICS
2968 _LIBCPP_INLINE_VISIBILITY
2969 __shared_ptr_emplace(_Alloc __a)
2970 : __data_(_VSTD::move(__a)) {}
2972 template <class ..._Args>
2973 _LIBCPP_INLINE_VISIBILITY
2974 __shared_ptr_emplace(_Alloc __a, _Args&& ...__args)
2975 : __data_(_VSTD::move(__a), _Tp(_VSTD::forward<_Args>(__args)...)) {}
2977 #else // _LIBCPP_HAS_NO_VARIADICS
2979 _LIBCPP_INLINE_VISIBILITY
2980 __shared_ptr_emplace(_Alloc __a)
2983 template <class _A0>
2984 _LIBCPP_INLINE_VISIBILITY
2985 __shared_ptr_emplace(_Alloc __a, _A0& __a0)
2986 : __data_(__a, _Tp(__a0)) {}
2988 template <class _A0, class _A1>
2989 _LIBCPP_INLINE_VISIBILITY
2990 __shared_ptr_emplace(_Alloc __a, _A0& __a0, _A1& __a1)
2991 : __data_(__a, _Tp(__a0, __a1)) {}
2993 template <class _A0, class _A1, class _A2>
2994 _LIBCPP_INLINE_VISIBILITY
2995 __shared_ptr_emplace(_Alloc __a, _A0& __a0, _A1& __a1, _A2& __a2)
2996 : __data_(__a, _Tp(__a0, __a1, __a2)) {}
2998 #endif // _LIBCPP_HAS_NO_VARIADICS
3001 virtual void __on_zero_shared() _NOEXCEPT;
3002 virtual void __on_zero_shared_weak() _NOEXCEPT;
3004 _LIBCPP_INLINE_VISIBILITY
3005 _Tp* get() _NOEXCEPT {return &__data_.second();}
3008 template <class _Tp, class _Alloc>
3010 __shared_ptr_emplace<_Tp, _Alloc>::__on_zero_shared() _NOEXCEPT
3012 __data_.second().~_Tp();
3015 template <class _Tp, class _Alloc>
3017 __shared_ptr_emplace<_Tp, _Alloc>::__on_zero_shared_weak() _NOEXCEPT
3019 typename _Alloc::template rebind<__shared_ptr_emplace>::other __a(__data_.first());
3020 __data_.first().~_Alloc();
3021 __a.deallocate(this, 1);
3024 template<class _Tp> class enable_shared_from_this;
3027 class _LIBCPP_VISIBLE shared_ptr
3030 typedef _Tp element_type;
3032 element_type* __ptr_;
3033 __shared_weak_count* __cntrl_;
3035 struct __nat {int __for_bool_;};
3037 shared_ptr() _NOEXCEPT;
3038 shared_ptr(nullptr_t) _NOEXCEPT;
3039 template<class _Yp> explicit shared_ptr(_Yp* __p);
3040 template<class _Yp, class _Dp> shared_ptr(_Yp* __p, _Dp __d);
3041 template<class _Yp, class _Dp, class _Alloc> shared_ptr(_Yp* __p, _Dp __d, _Alloc __a);
3042 template <class _Dp> shared_ptr(nullptr_t __p, _Dp __d);
3043 template <class _Dp, class _Alloc> shared_ptr(nullptr_t __p, _Dp __d, _Alloc __a);
3044 template<class _Yp> shared_ptr(const shared_ptr<_Yp>& __r, element_type* __p) _NOEXCEPT;
3045 shared_ptr(const shared_ptr& __r) _NOEXCEPT;
3047 shared_ptr(const shared_ptr<_Yp>& __r,
3048 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat>::type = __nat())
3050 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
3051 shared_ptr(shared_ptr&& __r) _NOEXCEPT;
3052 template<class _Yp> shared_ptr(shared_ptr<_Yp>&& __r,
3053 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat>::type = __nat())
3055 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
3056 template<class _Yp> explicit shared_ptr(const weak_ptr<_Yp>& __r,
3057 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat>::type= __nat());
3058 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
3059 template<class _Yp> shared_ptr(auto_ptr<_Yp>&& __r);
3061 template<class _Yp> shared_ptr(auto_ptr<_Yp> __r);
3063 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
3065 template <class _Yp, class _Dp> shared_ptr(const unique_ptr<_Yp, _Dp>& __r);// = delete;
3067 template <class _Yp, class _Dp> shared_ptr(unique_ptr<_Yp, _Dp>&&,
3068 typename enable_if<!is_lvalue_reference<_Dp>::value, __nat>::type = __nat());
3069 template <class _Yp, class _Dp> shared_ptr(unique_ptr<_Yp, _Dp>&&,
3070 typename enable_if<is_lvalue_reference<_Dp>::value, __nat>::type = __nat());
3071 #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
3072 template <class _Yp, class _Dp> shared_ptr(unique_ptr<_Yp, _Dp>,
3073 typename enable_if<!is_lvalue_reference<_Dp>::value, __nat>::type = __nat());
3074 template <class _Yp, class _Dp> shared_ptr(unique_ptr<_Yp, _Dp>,
3075 typename enable_if<is_lvalue_reference<_Dp>::value, __nat>::type = __nat());
3076 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
3080 shared_ptr& operator=(const shared_ptr& __r) _NOEXCEPT;
3081 template<class _Yp> shared_ptr& operator=(const shared_ptr<_Yp>& __r) _NOEXCEPT;
3082 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
3083 shared_ptr& operator=(shared_ptr&& __r) _NOEXCEPT;
3084 template<class _Yp> shared_ptr& operator=(shared_ptr<_Yp>&& __r);
3085 template<class _Yp> shared_ptr& operator=(auto_ptr<_Yp>&& __r);
3086 #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
3087 template<class _Yp> shared_ptr& operator=(auto_ptr<_Yp> __r);
3089 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
3091 template <class _Yp, class _Dp> shared_ptr& operator=(const unique_ptr<_Yp, _Dp>& __r);// = delete;
3093 template <class _Yp, class _Dp> shared_ptr& operator=(unique_ptr<_Yp, _Dp>&& __r);
3094 #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
3095 template <class _Yp, class _Dp> shared_ptr& operator=(unique_ptr<_Yp, _Dp> __r);
3098 void swap(shared_ptr& __r) _NOEXCEPT;
3099 void reset() _NOEXCEPT;
3100 template<class _Yp> void reset(_Yp* __p) _NOEXCEPT;
3101 template<class _Yp, class _Dp> void reset(_Yp* __p, _Dp __d);
3102 template<class _Yp, class _Dp, class _Alloc> void reset(_Yp* __p, _Dp __d, _Alloc __a);
3104 _LIBCPP_INLINE_VISIBILITY
3105 element_type* get() const _NOEXCEPT {return __ptr_;}
3106 _LIBCPP_INLINE_VISIBILITY
3107 typename add_lvalue_reference<element_type>::type operator*() const _NOEXCEPT
3109 _LIBCPP_INLINE_VISIBILITY
3110 element_type* operator->() const _NOEXCEPT {return __ptr_;}
3111 _LIBCPP_INLINE_VISIBILITY
3112 long use_count() const _NOEXCEPT {return __cntrl_ ? __cntrl_->use_count() : 0;}
3113 _LIBCPP_INLINE_VISIBILITY
3114 bool unique() const _NOEXCEPT {return use_count() == 1;}
3115 _LIBCPP_INLINE_VISIBILITY
3116 /*explicit*/ operator bool() const _NOEXCEPT {return get() != 0;}
3118 _LIBCPP_INLINE_VISIBILITY
3119 bool owner_before(shared_ptr<_U> const& __p) const
3120 {return __cntrl_ < __p.__cntrl_;}
3122 _LIBCPP_INLINE_VISIBILITY
3123 bool owner_before(weak_ptr<_U> const& __p) const
3124 {return __cntrl_ < __p.__cntrl_;}
3126 #ifndef _LIBCPP_NO_RTTI
3127 template <class _Dp>
3128 _LIBCPP_INLINE_VISIBILITY
3129 _Dp* __get_deleter() const _NOEXCEPT
3130 {return (_Dp*)(__cntrl_ ? __cntrl_->__get_deleter(typeid(_Dp)) : 0);}
3131 #endif // _LIBCPP_NO_RTTI
3133 #ifndef _LIBCPP_HAS_NO_VARIADICS
3135 template<class ..._Args>
3138 make_shared(_Args&& ...__args);
3140 template<class _Alloc, class ..._Args>
3143 allocate_shared(const _Alloc& __a, _Args&& ...__args);
3145 #else // _LIBCPP_HAS_NO_VARIADICS
3147 static shared_ptr<_Tp> make_shared();
3150 static shared_ptr<_Tp> make_shared(_A0&);
3152 template<class _A0, class _A1>
3153 static shared_ptr<_Tp> make_shared(_A0&, _A1&);
3155 template<class _A0, class _A1, class _A2>
3156 static shared_ptr<_Tp> make_shared(_A0&, _A1&, _A2&);
3158 template<class _Alloc>
3159 static shared_ptr<_Tp>
3160 allocate_shared(const _Alloc& __a);
3162 template<class _Alloc, class _A0>
3163 static shared_ptr<_Tp>
3164 allocate_shared(const _Alloc& __a, _A0& __a0);
3166 template<class _Alloc, class _A0, class _A1>
3167 static shared_ptr<_Tp>
3168 allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1);
3170 template<class _Alloc, class _A0, class _A1, class _A2>
3171 static shared_ptr<_Tp>
3172 allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1, _A2& __a2);
3174 #endif // _LIBCPP_HAS_NO_VARIADICS
3178 template <class _Yp>
3179 _LIBCPP_INLINE_VISIBILITY
3181 __enable_weak_this(const enable_shared_from_this<_Yp>* __e) _NOEXCEPT
3184 __e->__weak_this_ = *this;
3187 _LIBCPP_INLINE_VISIBILITY
3188 void __enable_weak_this(const void*) _NOEXCEPT {}
3190 template <class _Up> friend class _LIBCPP_VISIBLE shared_ptr;
3191 template <class _Up> friend class _LIBCPP_VISIBLE weak_ptr;
3195 inline _LIBCPP_INLINE_VISIBILITY
3196 shared_ptr<_Tp>::shared_ptr() _NOEXCEPT
3203 inline _LIBCPP_INLINE_VISIBILITY
3204 shared_ptr<_Tp>::shared_ptr(nullptr_t) _NOEXCEPT
3212 shared_ptr<_Tp>::shared_ptr(_Yp* __p)
3215 unique_ptr<_Yp> __hold(__p);
3216 typedef __shared_ptr_pointer<_Yp*, default_delete<_Yp>, allocator<_Yp> > _CntrlBlk;
3217 __cntrl_ = new _CntrlBlk(__p, default_delete<_Yp>(), allocator<_Yp>());
3219 __enable_weak_this(__p);
3223 template<class _Yp, class _Dp>
3224 shared_ptr<_Tp>::shared_ptr(_Yp* __p, _Dp __d)
3227 #ifndef _LIBCPP_NO_EXCEPTIONS
3230 #endif // _LIBCPP_NO_EXCEPTIONS
3231 typedef __shared_ptr_pointer<_Yp*, _Dp, allocator<_Yp> > _CntrlBlk;
3232 __cntrl_ = new _CntrlBlk(__p, __d, allocator<_Yp>());
3233 __enable_weak_this(__p);
3234 #ifndef _LIBCPP_NO_EXCEPTIONS
3241 #endif // _LIBCPP_NO_EXCEPTIONS
3246 shared_ptr<_Tp>::shared_ptr(nullptr_t __p, _Dp __d)
3249 #ifndef _LIBCPP_NO_EXCEPTIONS
3252 #endif // _LIBCPP_NO_EXCEPTIONS
3253 typedef __shared_ptr_pointer<nullptr_t, _Dp, allocator<_Tp> > _CntrlBlk;
3254 __cntrl_ = new _CntrlBlk(__p, __d, allocator<_Tp>());
3255 #ifndef _LIBCPP_NO_EXCEPTIONS
3262 #endif // _LIBCPP_NO_EXCEPTIONS
3266 template<class _Yp, class _Dp, class _Alloc>
3267 shared_ptr<_Tp>::shared_ptr(_Yp* __p, _Dp __d, _Alloc __a)
3270 #ifndef _LIBCPP_NO_EXCEPTIONS
3273 #endif // _LIBCPP_NO_EXCEPTIONS
3274 typedef __shared_ptr_pointer<_Yp*, _Dp, _Alloc> _CntrlBlk;
3275 typedef typename _Alloc::template rebind<_CntrlBlk>::other _A2;
3276 typedef __allocator_destructor<_A2> _D2;
3278 unique_ptr<_CntrlBlk, _D2> __hold2(__a2.allocate(1), _D2(__a2, 1));
3279 ::new(__hold2.get()) _CntrlBlk(__p, __d, __a);
3280 __cntrl_ = __hold2.release();
3281 __enable_weak_this(__p);
3282 #ifndef _LIBCPP_NO_EXCEPTIONS
3289 #endif // _LIBCPP_NO_EXCEPTIONS
3293 template<class _Dp, class _Alloc>
3294 shared_ptr<_Tp>::shared_ptr(nullptr_t __p, _Dp __d, _Alloc __a)
3297 #ifndef _LIBCPP_NO_EXCEPTIONS
3300 #endif // _LIBCPP_NO_EXCEPTIONS
3301 typedef __shared_ptr_pointer<nullptr_t, _Dp, _Alloc> _CntrlBlk;
3302 typedef typename _Alloc::template rebind<_CntrlBlk>::other _A2;
3303 typedef __allocator_destructor<_A2> _D2;
3305 unique_ptr<_CntrlBlk, _D2> __hold2(__a2.allocate(1), _D2(__a2, 1));
3306 ::new(__hold2.get()) _CntrlBlk(__p, __d, __a);
3307 __cntrl_ = __hold2.release();
3308 #ifndef _LIBCPP_NO_EXCEPTIONS
3315 #endif // _LIBCPP_NO_EXCEPTIONS
3320 inline _LIBCPP_INLINE_VISIBILITY
3321 shared_ptr<_Tp>::shared_ptr(const shared_ptr<_Yp>& __r, element_type *__p) _NOEXCEPT
3323 __cntrl_(__r.__cntrl_)
3326 __cntrl_->__add_shared();
3330 inline _LIBCPP_INLINE_VISIBILITY
3331 shared_ptr<_Tp>::shared_ptr(const shared_ptr& __r) _NOEXCEPT
3332 : __ptr_(__r.__ptr_),
3333 __cntrl_(__r.__cntrl_)
3336 __cntrl_->__add_shared();
3341 inline _LIBCPP_INLINE_VISIBILITY
3342 shared_ptr<_Tp>::shared_ptr(const shared_ptr<_Yp>& __r,
3343 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat>::type)
3345 : __ptr_(__r.__ptr_),
3346 __cntrl_(__r.__cntrl_)
3349 __cntrl_->__add_shared();
3352 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
3355 inline _LIBCPP_INLINE_VISIBILITY
3356 shared_ptr<_Tp>::shared_ptr(shared_ptr&& __r) _NOEXCEPT
3357 : __ptr_(__r.__ptr_),
3358 __cntrl_(__r.__cntrl_)
3366 inline _LIBCPP_INLINE_VISIBILITY
3367 shared_ptr<_Tp>::shared_ptr(shared_ptr<_Yp>&& __r,
3368 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat>::type)
3370 : __ptr_(__r.__ptr_),
3371 __cntrl_(__r.__cntrl_)
3377 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
3381 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
3382 shared_ptr<_Tp>::shared_ptr(auto_ptr<_Yp>&& __r)
3384 shared_ptr<_Tp>::shared_ptr(auto_ptr<_Yp> __r)
3388 typedef __shared_ptr_pointer<_Yp*, default_delete<_Yp>, allocator<_Yp> > _CntrlBlk;
3389 __cntrl_ = new _CntrlBlk(__r.get(), default_delete<_Yp>(), allocator<_Yp>());
3390 __enable_weak_this(__r.get());
3395 template <class _Yp, class _Dp>
3396 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
3397 shared_ptr<_Tp>::shared_ptr(unique_ptr<_Yp, _Dp>&& __r,
3399 shared_ptr<_Tp>::shared_ptr(unique_ptr<_Yp, _Dp> __r,
3401 typename enable_if<!is_lvalue_reference<_Dp>::value, __nat>::type)
3404 typedef __shared_ptr_pointer<_Yp*, _Dp, allocator<_Yp> > _CntrlBlk;
3405 __cntrl_ = new _CntrlBlk(__r.get(), __r.get_deleter(), allocator<_Yp>());
3406 __enable_weak_this(__r.get());
3411 template <class _Yp, class _Dp>
3412 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
3413 shared_ptr<_Tp>::shared_ptr(unique_ptr<_Yp, _Dp>&& __r,
3415 shared_ptr<_Tp>::shared_ptr(unique_ptr<_Yp, _Dp> __r,
3417 typename enable_if<is_lvalue_reference<_Dp>::value, __nat>::type)
3420 typedef __shared_ptr_pointer<_Yp*,
3421 reference_wrapper<typename remove_reference<_Dp>::type>,
3422 allocator<_Yp> > _CntrlBlk;
3423 __cntrl_ = new _CntrlBlk(__r.get(), ref(__r.get_deleter()), allocator<_Yp>());
3424 __enable_weak_this(__r.get());
3428 #ifndef _LIBCPP_HAS_NO_VARIADICS
3431 template<class ..._Args>
3433 shared_ptr<_Tp>::make_shared(_Args&& ...__args)
3435 typedef __shared_ptr_emplace<_Tp, allocator<_Tp> > _CntrlBlk;
3436 typedef allocator<_CntrlBlk> _A2;
3437 typedef __allocator_destructor<_A2> _D2;
3439 unique_ptr<_CntrlBlk, _D2> __hold2(__a2.allocate(1), _D2(__a2, 1));
3440 ::new(__hold2.get()) _CntrlBlk(__a2, _VSTD::forward<_Args>(__args)...);
3441 shared_ptr<_Tp> __r;
3442 __r.__ptr_ = __hold2.get()->get();
3443 __r.__cntrl_ = __hold2.release();
3444 __r.__enable_weak_this(__r.__ptr_);
3449 template<class _Alloc, class ..._Args>
3451 shared_ptr<_Tp>::allocate_shared(const _Alloc& __a, _Args&& ...__args)
3453 typedef __shared_ptr_emplace<_Tp, _Alloc> _CntrlBlk;
3454 typedef typename _Alloc::template rebind<_CntrlBlk>::other _A2;
3455 typedef __allocator_destructor<_A2> _D2;
3457 unique_ptr<_CntrlBlk, _D2> __hold2(__a2.allocate(1), _D2(__a2, 1));
3458 ::new(__hold2.get()) _CntrlBlk(__a, _VSTD::forward<_Args>(__args)...);
3459 shared_ptr<_Tp> __r;
3460 __r.__ptr_ = __hold2.get()->get();
3461 __r.__cntrl_ = __hold2.release();
3462 __r.__enable_weak_this(__r.__ptr_);
3466 #else // _LIBCPP_HAS_NO_VARIADICS
3470 shared_ptr<_Tp>::make_shared()
3472 typedef __shared_ptr_emplace<_Tp, allocator<_Tp> > _CntrlBlk;
3473 typedef allocator<_CntrlBlk> _Alloc2;
3474 typedef __allocator_destructor<_Alloc2> _D2;
3476 unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
3477 ::new(__hold2.get()) _CntrlBlk(__alloc2);
3478 shared_ptr<_Tp> __r;
3479 __r.__ptr_ = __hold2.get()->get();
3480 __r.__cntrl_ = __hold2.release();
3481 __r.__enable_weak_this(__r.__ptr_);
3488 shared_ptr<_Tp>::make_shared(_A0& __a0)
3490 typedef __shared_ptr_emplace<_Tp, allocator<_Tp> > _CntrlBlk;
3491 typedef allocator<_CntrlBlk> _Alloc2;
3492 typedef __allocator_destructor<_Alloc2> _D2;
3494 unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
3495 ::new(__hold2.get()) _CntrlBlk(__alloc2, __a0);
3496 shared_ptr<_Tp> __r;
3497 __r.__ptr_ = __hold2.get()->get();
3498 __r.__cntrl_ = __hold2.release();
3499 __r.__enable_weak_this(__r.__ptr_);
3504 template<class _A0, class _A1>
3506 shared_ptr<_Tp>::make_shared(_A0& __a0, _A1& __a1)
3508 typedef __shared_ptr_emplace<_Tp, allocator<_Tp> > _CntrlBlk;
3509 typedef allocator<_CntrlBlk> _Alloc2;
3510 typedef __allocator_destructor<_Alloc2> _D2;
3512 unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
3513 ::new(__hold2.get()) _CntrlBlk(__alloc2, __a0, __a1);
3514 shared_ptr<_Tp> __r;
3515 __r.__ptr_ = __hold2.get()->get();
3516 __r.__cntrl_ = __hold2.release();
3517 __r.__enable_weak_this(__r.__ptr_);
3522 template<class _A0, class _A1, class _A2>
3524 shared_ptr<_Tp>::make_shared(_A0& __a0, _A1& __a1, _A2& __a2)
3526 typedef __shared_ptr_emplace<_Tp, allocator<_Tp> > _CntrlBlk;
3527 typedef allocator<_CntrlBlk> _Alloc2;
3528 typedef __allocator_destructor<_Alloc2> _D2;
3530 unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
3531 ::new(__hold2.get()) _CntrlBlk(__alloc2, __a0, __a1, __a2);
3532 shared_ptr<_Tp> __r;
3533 __r.__ptr_ = __hold2.get()->get();
3534 __r.__cntrl_ = __hold2.release();
3535 __r.__enable_weak_this(__r.__ptr_);
3540 template<class _Alloc>
3542 shared_ptr<_Tp>::allocate_shared(const _Alloc& __a)
3544 typedef __shared_ptr_emplace<_Tp, _Alloc> _CntrlBlk;
3545 typedef typename _Alloc::template rebind<_CntrlBlk>::other _Alloc2;
3546 typedef __allocator_destructor<_Alloc2> _D2;
3547 _Alloc2 __alloc2(__a);
3548 unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
3549 ::new(__hold2.get()) _CntrlBlk(__a);
3550 shared_ptr<_Tp> __r;
3551 __r.__ptr_ = __hold2.get()->get();
3552 __r.__cntrl_ = __hold2.release();
3553 __r.__enable_weak_this(__r.__ptr_);
3558 template<class _Alloc, class _A0>
3560 shared_ptr<_Tp>::allocate_shared(const _Alloc& __a, _A0& __a0)
3562 typedef __shared_ptr_emplace<_Tp, _Alloc> _CntrlBlk;
3563 typedef typename _Alloc::template rebind<_CntrlBlk>::other _Alloc2;
3564 typedef __allocator_destructor<_Alloc2> _D2;
3565 _Alloc2 __alloc2(__a);
3566 unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
3567 ::new(__hold2.get()) _CntrlBlk(__a, __a0);
3568 shared_ptr<_Tp> __r;
3569 __r.__ptr_ = __hold2.get()->get();
3570 __r.__cntrl_ = __hold2.release();
3571 __r.__enable_weak_this(__r.__ptr_);
3576 template<class _Alloc, class _A0, class _A1>
3578 shared_ptr<_Tp>::allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1)
3580 typedef __shared_ptr_emplace<_Tp, _Alloc> _CntrlBlk;
3581 typedef typename _Alloc::template rebind<_CntrlBlk>::other _Alloc2;
3582 typedef __allocator_destructor<_Alloc2> _D2;
3583 _Alloc2 __alloc2(__a);
3584 unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
3585 ::new(__hold2.get()) _CntrlBlk(__a, __a0, __a1);
3586 shared_ptr<_Tp> __r;
3587 __r.__ptr_ = __hold2.get()->get();
3588 __r.__cntrl_ = __hold2.release();
3589 __r.__enable_weak_this(__r.__ptr_);
3594 template<class _Alloc, class _A0, class _A1, class _A2>
3596 shared_ptr<_Tp>::allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1, _A2& __a2)
3598 typedef __shared_ptr_emplace<_Tp, _Alloc> _CntrlBlk;
3599 typedef typename _Alloc::template rebind<_CntrlBlk>::other _Alloc2;
3600 typedef __allocator_destructor<_Alloc2> _D2;
3601 _Alloc2 __alloc2(__a);
3602 unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
3603 ::new(__hold2.get()) _CntrlBlk(__a, __a0, __a1, __a2);
3604 shared_ptr<_Tp> __r;
3605 __r.__ptr_ = __hold2.get()->get();
3606 __r.__cntrl_ = __hold2.release();
3607 __r.__enable_weak_this(__r.__ptr_);
3611 #endif // _LIBCPP_HAS_NO_VARIADICS
3614 shared_ptr<_Tp>::~shared_ptr()
3617 __cntrl_->__release_shared();
3621 inline _LIBCPP_INLINE_VISIBILITY
3623 shared_ptr<_Tp>::operator=(const shared_ptr& __r) _NOEXCEPT
3625 shared_ptr(__r).swap(*this);
3631 inline _LIBCPP_INLINE_VISIBILITY
3633 shared_ptr<_Tp>::operator=(const shared_ptr<_Yp>& __r) _NOEXCEPT
3635 shared_ptr(__r).swap(*this);
3639 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
3642 inline _LIBCPP_INLINE_VISIBILITY
3644 shared_ptr<_Tp>::operator=(shared_ptr&& __r) _NOEXCEPT
3646 shared_ptr(_VSTD::move(__r)).swap(*this);
3652 inline _LIBCPP_INLINE_VISIBILITY
3654 shared_ptr<_Tp>::operator=(shared_ptr<_Yp>&& __r)
3656 shared_ptr(_VSTD::move(__r)).swap(*this);
3662 inline _LIBCPP_INLINE_VISIBILITY
3664 shared_ptr<_Tp>::operator=(auto_ptr<_Yp>&& __r)
3666 shared_ptr(_VSTD::move(__r)).swap(*this);
3671 template <class _Yp, class _Dp>
3672 inline _LIBCPP_INLINE_VISIBILITY
3674 shared_ptr<_Tp>::operator=(unique_ptr<_Yp, _Dp>&& __r)
3676 shared_ptr(_VSTD::move(__r)).swap(*this);
3680 #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
3684 inline _LIBCPP_INLINE_VISIBILITY
3686 shared_ptr<_Tp>::operator=(auto_ptr<_Yp> __r)
3688 shared_ptr(__r).swap(*this);
3693 template <class _Yp, class _Dp>
3694 inline _LIBCPP_INLINE_VISIBILITY
3696 shared_ptr<_Tp>::operator=(unique_ptr<_Yp, _Dp> __r)
3698 shared_ptr(_VSTD::move(__r)).swap(*this);
3702 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
3705 inline _LIBCPP_INLINE_VISIBILITY
3707 shared_ptr<_Tp>::swap(shared_ptr& __r) _NOEXCEPT
3709 _VSTD::swap(__ptr_, __r.__ptr_);
3710 _VSTD::swap(__cntrl_, __r.__cntrl_);
3714 inline _LIBCPP_INLINE_VISIBILITY
3716 shared_ptr<_Tp>::reset() _NOEXCEPT
3718 shared_ptr().swap(*this);
3723 inline _LIBCPP_INLINE_VISIBILITY
3725 shared_ptr<_Tp>::reset(_Yp* __p)
3727 shared_ptr(__p).swap(*this);
3731 template<class _Yp, class _Dp>
3732 inline _LIBCPP_INLINE_VISIBILITY
3734 shared_ptr<_Tp>::reset(_Yp* __p, _Dp __d)
3736 shared_ptr(__p, __d).swap(*this);
3740 template<class _Yp, class _Dp, class _Alloc>
3741 inline _LIBCPP_INLINE_VISIBILITY
3743 shared_ptr<_Tp>::reset(_Yp* __p, _Dp __d, _Alloc __a)
3745 shared_ptr(__p, __d, __a).swap(*this);
3748 #ifndef _LIBCPP_HAS_NO_VARIADICS
3750 template<class _Tp, class ..._Args>
3751 inline _LIBCPP_INLINE_VISIBILITY
3753 make_shared(_Args&& ...__args)
3755 return shared_ptr<_Tp>::make_shared(_VSTD::forward<_Args>(__args)...);
3758 template<class _Tp, class _Alloc, class ..._Args>
3759 inline _LIBCPP_INLINE_VISIBILITY
3761 allocate_shared(const _Alloc& __a, _Args&& ...__args)
3763 return shared_ptr<_Tp>::allocate_shared(__a, _VSTD::forward<_Args>(__args)...);
3766 #else // _LIBCPP_HAS_NO_VARIADICS
3769 inline _LIBCPP_INLINE_VISIBILITY
3773 return shared_ptr<_Tp>::make_shared();
3776 template<class _Tp, class _A0>
3777 inline _LIBCPP_INLINE_VISIBILITY
3779 make_shared(_A0& __a0)
3781 return shared_ptr<_Tp>::make_shared(__a0);
3784 template<class _Tp, class _A0, class _A1>
3785 inline _LIBCPP_INLINE_VISIBILITY
3787 make_shared(_A0& __a0, _A1& __a1)
3789 return shared_ptr<_Tp>::make_shared(__a0, __a1);
3792 template<class _Tp, class _A0, class _A1, class _A2>
3793 inline _LIBCPP_INLINE_VISIBILITY
3795 make_shared(_A0& __a0, _A1& __a1, _A2& __a2)
3797 return shared_ptr<_Tp>::make_shared(__a0, __a1, __a2);
3800 template<class _Tp, class _Alloc>
3801 inline _LIBCPP_INLINE_VISIBILITY
3803 allocate_shared(const _Alloc& __a)
3805 return shared_ptr<_Tp>::allocate_shared(__a);
3808 template<class _Tp, class _Alloc, class _A0>
3809 inline _LIBCPP_INLINE_VISIBILITY
3811 allocate_shared(const _Alloc& __a, _A0& __a0)
3813 return shared_ptr<_Tp>::allocate_shared(__a, __a0);
3816 template<class _Tp, class _Alloc, class _A0, class _A1>
3817 inline _LIBCPP_INLINE_VISIBILITY
3819 allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1)
3821 return shared_ptr<_Tp>::allocate_shared(__a, __a0, __a1);
3824 template<class _Tp, class _Alloc, class _A0, class _A1, class _A2>
3825 inline _LIBCPP_INLINE_VISIBILITY
3827 allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1, _A2& __a2)
3829 return shared_ptr<_Tp>::allocate_shared(__a, __a0, __a1, __a2);
3832 #endif // _LIBCPP_HAS_NO_VARIADICS
3834 template<class _Tp, class _Up>
3835 inline _LIBCPP_INLINE_VISIBILITY
3837 operator==(const shared_ptr<_Tp>& __x, const shared_ptr<_Up>& __y) _NOEXCEPT
3839 return __x.get() == __y.get();
3842 template<class _Tp, class _Up>
3843 inline _LIBCPP_INLINE_VISIBILITY
3845 operator!=(const shared_ptr<_Tp>& __x, const shared_ptr<_Up>& __y) _NOEXCEPT
3847 return !(__x == __y);
3850 template<class _Tp, class _Up>
3851 inline _LIBCPP_INLINE_VISIBILITY
3853 operator<(const shared_ptr<_Tp>& __x, const shared_ptr<_Up>& __y) _NOEXCEPT
3855 return __x.get() < __y.get();
3859 inline _LIBCPP_INLINE_VISIBILITY
3861 swap(shared_ptr<_Tp>& __x, shared_ptr<_Tp>& __y) _NOEXCEPT
3866 template<class _Tp, class _Up>
3867 inline _LIBCPP_INLINE_VISIBILITY
3869 static_pointer_cast(const shared_ptr<_Up>& __r) _NOEXCEPT
3871 return shared_ptr<_Tp>(__r, static_cast<_Tp*>(__r.get()));
3874 template<class _Tp, class _Up>
3875 inline _LIBCPP_INLINE_VISIBILITY
3877 dynamic_pointer_cast(const shared_ptr<_Up>& __r) _NOEXCEPT
3879 _Tp* __p = dynamic_cast<_Tp*>(__r.get());
3880 return __p ? shared_ptr<_Tp>(__r, __p) : shared_ptr<_Tp>();
3883 template<class _Tp, class _Up>
3885 const_pointer_cast(const shared_ptr<_Up>& __r) _NOEXCEPT
3887 return shared_ptr<_Tp>(__r, const_cast<_Tp*>(__r.get()));
3890 #ifndef _LIBCPP_NO_RTTI
3892 template<class _Dp, class _Tp>
3893 inline _LIBCPP_INLINE_VISIBILITY
3895 get_deleter(const shared_ptr<_Tp>& __p) _NOEXCEPT
3897 return __p.template __get_deleter<_Dp>();
3900 #endif // _LIBCPP_NO_RTTI
3903 class _LIBCPP_VISIBLE weak_ptr
3906 typedef _Tp element_type;
3908 element_type* __ptr_;
3909 __shared_weak_count* __cntrl_;
3912 weak_ptr() _NOEXCEPT;
3913 template<class _Yp> weak_ptr(shared_ptr<_Yp> const& __r,
3914 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat*>::type = 0)
3916 weak_ptr(weak_ptr const& __r) _NOEXCEPT;
3917 template<class _Yp> weak_ptr(weak_ptr<_Yp> const& __r,
3918 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat*>::type = 0)
3923 weak_ptr& operator=(weak_ptr const& __r) _NOEXCEPT;
3924 template<class _Yp> weak_ptr& operator=(weak_ptr<_Yp> const& __r) _NOEXCEPT;
3925 template<class _Yp> weak_ptr& operator=(shared_ptr<_Yp> const& __r) _NOEXCEPT;
3927 void swap(weak_ptr& __r) _NOEXCEPT;
3928 void reset() _NOEXCEPT;
3930 _LIBCPP_INLINE_VISIBILITY
3931 long use_count() const _NOEXCEPT
3932 {return __cntrl_ ? __cntrl_->use_count() : 0;}
3933 _LIBCPP_INLINE_VISIBILITY
3934 bool expired() const _NOEXCEPT
3935 {return __cntrl_ == 0 || __cntrl_->use_count() == 0;}
3936 shared_ptr<_Tp> lock() const _NOEXCEPT;
3938 _LIBCPP_INLINE_VISIBILITY
3939 bool owner_before(const shared_ptr<_Up>& __r) const
3940 {return __cntrl_ < __r.__cntrl_;}
3942 _LIBCPP_INLINE_VISIBILITY
3943 bool owner_before(const weak_ptr<_Up>& __r) const
3944 {return __cntrl_ < __r.__cntrl_;}
3946 template <class _Up> friend class _LIBCPP_VISIBLE weak_ptr;
3947 template <class _Up> friend class _LIBCPP_VISIBLE shared_ptr;
3951 inline _LIBCPP_INLINE_VISIBILITY
3952 weak_ptr<_Tp>::weak_ptr() _NOEXCEPT
3959 inline _LIBCPP_INLINE_VISIBILITY
3960 weak_ptr<_Tp>::weak_ptr(weak_ptr const& __r) _NOEXCEPT
3961 : __ptr_(__r.__ptr_),
3962 __cntrl_(__r.__cntrl_)
3965 __cntrl_->__add_weak();
3970 inline _LIBCPP_INLINE_VISIBILITY
3971 weak_ptr<_Tp>::weak_ptr(shared_ptr<_Yp> const& __r,
3972 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat*>::type)
3974 : __ptr_(__r.__ptr_),
3975 __cntrl_(__r.__cntrl_)
3978 __cntrl_->__add_weak();
3983 inline _LIBCPP_INLINE_VISIBILITY
3984 weak_ptr<_Tp>::weak_ptr(weak_ptr<_Yp> const& __r,
3985 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat*>::type)
3987 : __ptr_(__r.__ptr_),
3988 __cntrl_(__r.__cntrl_)
3991 __cntrl_->__add_weak();
3995 weak_ptr<_Tp>::~weak_ptr()
3998 __cntrl_->__release_weak();
4002 inline _LIBCPP_INLINE_VISIBILITY
4004 weak_ptr<_Tp>::operator=(weak_ptr const& __r) _NOEXCEPT
4006 weak_ptr(__r).swap(*this);
4012 inline _LIBCPP_INLINE_VISIBILITY
4014 weak_ptr<_Tp>::operator=(weak_ptr<_Yp> const& __r) _NOEXCEPT
4016 weak_ptr(__r).swap(*this);
4022 inline _LIBCPP_INLINE_VISIBILITY
4024 weak_ptr<_Tp>::operator=(shared_ptr<_Yp> const& __r) _NOEXCEPT
4026 weak_ptr(__r).swap(*this);
4031 inline _LIBCPP_INLINE_VISIBILITY
4033 weak_ptr<_Tp>::swap(weak_ptr& __r) _NOEXCEPT
4035 _VSTD::swap(__ptr_, __r.__ptr_);
4036 _VSTD::swap(__cntrl_, __r.__cntrl_);
4040 inline _LIBCPP_INLINE_VISIBILITY
4042 swap(weak_ptr<_Tp>& __x, weak_ptr<_Tp>& __y) _NOEXCEPT
4048 inline _LIBCPP_INLINE_VISIBILITY
4050 weak_ptr<_Tp>::reset() _NOEXCEPT
4052 weak_ptr().swap(*this);
4057 shared_ptr<_Tp>::shared_ptr(const weak_ptr<_Yp>& __r,
4058 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat>::type)
4059 : __ptr_(__r.__ptr_),
4060 __cntrl_(__r.__cntrl_ ? __r.__cntrl_->lock() : __r.__cntrl_)
4063 #ifndef _LIBCPP_NO_EXCEPTIONS
4064 throw bad_weak_ptr();
4066 assert(!"bad_weak_ptr");
4072 weak_ptr<_Tp>::lock() const _NOEXCEPT
4074 shared_ptr<_Tp> __r;
4075 __r.__cntrl_ = __cntrl_ ? __cntrl_->lock() : __cntrl_;
4077 __r.__ptr_ = __ptr_;
4081 template <class _Tp> struct owner_less;
4083 template <class _Tp>
4084 struct _LIBCPP_VISIBLE owner_less<shared_ptr<_Tp> >
4085 : binary_function<shared_ptr<_Tp>, shared_ptr<_Tp>, bool>
4087 typedef bool result_type;
4088 _LIBCPP_INLINE_VISIBILITY
4089 bool operator()(shared_ptr<_Tp> const& __x, shared_ptr<_Tp> const& __y) const
4090 {return __x.owner_before(__y);}
4091 _LIBCPP_INLINE_VISIBILITY
4092 bool operator()(shared_ptr<_Tp> const& __x, weak_ptr<_Tp> const& __y) const
4093 {return __x.owner_before(__y);}
4094 _LIBCPP_INLINE_VISIBILITY
4095 bool operator()( weak_ptr<_Tp> const& __x, shared_ptr<_Tp> const& __y) const
4096 {return __x.owner_before(__y);}
4099 template <class _Tp>
4100 struct _LIBCPP_VISIBLE owner_less<weak_ptr<_Tp> >
4101 : binary_function<weak_ptr<_Tp>, weak_ptr<_Tp>, bool>
4103 typedef bool result_type;
4104 _LIBCPP_INLINE_VISIBILITY
4105 bool operator()( weak_ptr<_Tp> const& __x, weak_ptr<_Tp> const& __y) const
4106 {return __x.owner_before(__y);}
4107 _LIBCPP_INLINE_VISIBILITY
4108 bool operator()(shared_ptr<_Tp> const& __x, weak_ptr<_Tp> const& __y) const
4109 {return __x.owner_before(__y);}
4110 _LIBCPP_INLINE_VISIBILITY
4111 bool operator()( weak_ptr<_Tp> const& __x, shared_ptr<_Tp> const& __y) const
4112 {return __x.owner_before(__y);}
4116 class _LIBCPP_VISIBLE enable_shared_from_this
4118 mutable weak_ptr<_Tp> __weak_this_;
4120 _LIBCPP_INLINE_VISIBILITY
4121 enable_shared_from_this() _NOEXCEPT {}
4122 _LIBCPP_INLINE_VISIBILITY
4123 enable_shared_from_this(enable_shared_from_this const&) _NOEXCEPT {}
4124 _LIBCPP_INLINE_VISIBILITY
4125 enable_shared_from_this& operator=(enable_shared_from_this const&) _NOEXCEPT
4127 _LIBCPP_INLINE_VISIBILITY
4128 ~enable_shared_from_this() {}
4130 _LIBCPP_INLINE_VISIBILITY
4131 shared_ptr<_Tp> shared_from_this()
4132 {return shared_ptr<_Tp>(__weak_this_);}
4133 _LIBCPP_INLINE_VISIBILITY
4134 shared_ptr<_Tp const> shared_from_this() const
4135 {return shared_ptr<const _Tp>(__weak_this_);}
4137 template <class _Up> friend class shared_ptr;
4140 template <class _Tp>
4141 struct _LIBCPP_VISIBLE hash<shared_ptr<_Tp> >
4143 typedef shared_ptr<_Tp> argument_type;
4144 typedef size_t result_type;
4145 _LIBCPP_INLINE_VISIBILITY
4146 result_type operator()(const argument_type& __ptr) const _NOEXCEPT
4148 return hash<_Tp*>()(__ptr.get());
4152 template<class _CharT, class _Traits, class _Y>
4153 inline _LIBCPP_INLINE_VISIBILITY
4154 basic_ostream<_CharT, _Traits>&
4155 operator<<(basic_ostream<_CharT, _Traits>& __os, shared_ptr<_Y> const& __p);
4158 struct _LIBCPP_VISIBLE pointer_safety
4169 _LIBCPP_INLINE_VISIBILITY
4170 pointer_safety(_ __v) : __v_(__v) {}
4171 _LIBCPP_INLINE_VISIBILITY
4172 operator int() const {return __v_;}
4175 void declare_reachable(void* __p);
4176 void declare_no_pointers(char* __p, size_t __n);
4177 void undeclare_no_pointers(char* __p, size_t __n);
4178 pointer_safety get_pointer_safety() _NOEXCEPT;
4179 void* __undeclare_reachable(void* __p);
4181 template <class _Tp>
4182 inline _LIBCPP_INLINE_VISIBILITY
4184 undeclare_reachable(_Tp* __p)
4186 return static_cast<_Tp*>(__undeclare_reachable(__p));
4189 void* align(size_t __align, size_t __sz, void*& __ptr, size_t& __space);
4191 _LIBCPP_END_NAMESPACE_STD
4193 #endif // _LIBCPP_MEMORY