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>
601 #if defined(_LIBCPP_NO_EXCEPTIONS)
605 #if __has_feature(cxx_atomic)
609 #include <__undef_min_max>
611 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
612 #pragma GCC system_header
615 _LIBCPP_BEGIN_NAMESPACE_STD
620 inline _LIBCPP_INLINE_VISIBILITY
622 addressof(_Tp& __x) _NOEXCEPT
624 return (_Tp*)&(char&)__x;
627 #if defined(_LIBCPP_HAS_OBJC_ARC) && !defined(_LIBCPP_PREDEFINED_OBJC_ARC_ADDRESSOF)
628 // Objective-C++ Automatic Reference Counting uses qualified pointers
629 // that require special addressof() signatures. When
630 // _LIBCPP_PREDEFINED_OBJC_ARC_ADDRESSOF is defined, the compiler
631 // itself is providing these definitions. Otherwise, we provide them.
633 inline _LIBCPP_INLINE_VISIBILITY
635 addressof(__strong _Tp& __x) _NOEXCEPT
640 #ifdef _LIBCPP_HAS_OBJC_ARC_WEAK
642 inline _LIBCPP_INLINE_VISIBILITY
644 addressof(__weak _Tp& __x) _NOEXCEPT
651 inline _LIBCPP_INLINE_VISIBILITY
653 addressof(__autoreleasing _Tp& __x) _NOEXCEPT
659 inline _LIBCPP_INLINE_VISIBILITY
660 __unsafe_unretained _Tp*
661 addressof(__unsafe_unretained _Tp& __x) _NOEXCEPT
667 template <class _Tp> class allocator;
670 class _LIBCPP_VISIBLE allocator<void>
673 typedef void* pointer;
674 typedef const void* const_pointer;
675 typedef void value_type;
677 template <class _Up> struct rebind {typedef allocator<_Up> other;};
681 class _LIBCPP_VISIBLE allocator<const void>
684 typedef const void* pointer;
685 typedef const void* const_pointer;
686 typedef const void value_type;
688 template <class _Up> struct rebind {typedef allocator<_Up> other;};
694 struct __has_element_type
697 struct __two {char __lx; char __lxx;};
698 template <class _Up> static __two __test(...);
699 template <class _Up> static char __test(typename _Up::element_type* = 0);
701 static const bool value = sizeof(__test<_Tp>(0)) == 1;
704 template <class _Ptr, bool = __has_element_type<_Ptr>::value>
705 struct __pointer_traits_element_type;
707 template <class _Ptr>
708 struct __pointer_traits_element_type<_Ptr, true>
710 typedef typename _Ptr::element_type type;
713 #ifndef _LIBCPP_HAS_NO_VARIADICS
715 template <template <class, class...> class _Sp, class _Tp, class ..._Args>
716 struct __pointer_traits_element_type<_Sp<_Tp, _Args...>, true>
718 typedef typename _Sp<_Tp, _Args...>::element_type type;
721 template <template <class, class...> class _Sp, class _Tp, class ..._Args>
722 struct __pointer_traits_element_type<_Sp<_Tp, _Args...>, false>
727 #else // _LIBCPP_HAS_NO_VARIADICS
729 template <template <class> class _Sp, class _Tp>
730 struct __pointer_traits_element_type<_Sp<_Tp>, true>
732 typedef typename _Sp<_Tp>::element_type type;
735 template <template <class> class _Sp, class _Tp>
736 struct __pointer_traits_element_type<_Sp<_Tp>, false>
741 template <template <class, class> class _Sp, class _Tp, class _A0>
742 struct __pointer_traits_element_type<_Sp<_Tp, _A0>, true>
744 typedef typename _Sp<_Tp, _A0>::element_type type;
747 template <template <class, class> class _Sp, class _Tp, class _A0>
748 struct __pointer_traits_element_type<_Sp<_Tp, _A0>, false>
753 template <template <class, class, class> class _Sp, class _Tp, class _A0, class _A1>
754 struct __pointer_traits_element_type<_Sp<_Tp, _A0, _A1>, true>
756 typedef typename _Sp<_Tp, _A0, _A1>::element_type type;
759 template <template <class, class, class> class _Sp, class _Tp, class _A0, class _A1>
760 struct __pointer_traits_element_type<_Sp<_Tp, _A0, _A1>, false>
765 template <template <class, class, class, class> class _Sp, class _Tp, class _A0,
766 class _A1, class _A2>
767 struct __pointer_traits_element_type<_Sp<_Tp, _A0, _A1, _A2>, true>
769 typedef typename _Sp<_Tp, _A0, _A1, _A2>::element_type type;
772 template <template <class, class, class, class> class _Sp, class _Tp, class _A0,
773 class _A1, class _A2>
774 struct __pointer_traits_element_type<_Sp<_Tp, _A0, _A1, _A2>, false>
779 #endif // _LIBCPP_HAS_NO_VARIADICS
782 struct __has_difference_type
785 struct __two {char __lx; char __lxx;};
786 template <class _Up> static __two __test(...);
787 template <class _Up> static char __test(typename _Up::difference_type* = 0);
789 static const bool value = sizeof(__test<_Tp>(0)) == 1;
792 template <class _Ptr, bool = __has_difference_type<_Ptr>::value>
793 struct __pointer_traits_difference_type
795 typedef ptrdiff_t type;
798 template <class _Ptr>
799 struct __pointer_traits_difference_type<_Ptr, true>
801 typedef typename _Ptr::difference_type type;
804 template <class _Tp, class _Up>
808 struct __two {char __lx; char __lxx;};
809 template <class _Xp> static __two __test(...);
810 template <class _Xp> static char __test(typename _Xp::template rebind<_Up>* = 0);
812 static const bool value = sizeof(__test<_Tp>(0)) == 1;
815 template <class _Tp, class _Up, bool = __has_rebind<_Tp, _Up>::value>
816 struct __pointer_traits_rebind
818 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
819 typedef typename _Tp::template rebind<_Up> type;
821 typedef typename _Tp::template rebind<_Up>::other type;
825 #ifndef _LIBCPP_HAS_NO_VARIADICS
827 template <template <class, class...> class _Sp, class _Tp, class ..._Args, class _Up>
828 struct __pointer_traits_rebind<_Sp<_Tp, _Args...>, _Up, true>
830 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
831 typedef typename _Sp<_Tp, _Args...>::template rebind<_Up> type;
833 typedef typename _Sp<_Tp, _Args...>::template rebind<_Up>::other type;
837 template <template <class, class...> class _Sp, class _Tp, class ..._Args, class _Up>
838 struct __pointer_traits_rebind<_Sp<_Tp, _Args...>, _Up, false>
840 typedef _Sp<_Up, _Args...> type;
843 #else // _LIBCPP_HAS_NO_VARIADICS
845 template <template <class> class _Sp, class _Tp, class _Up>
846 struct __pointer_traits_rebind<_Sp<_Tp>, _Up, true>
848 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
849 typedef typename _Sp<_Tp>::template rebind<_Up> type;
851 typedef typename _Sp<_Tp>::template rebind<_Up>::other type;
855 template <template <class> class _Sp, class _Tp, class _Up>
856 struct __pointer_traits_rebind<_Sp<_Tp>, _Up, false>
858 typedef _Sp<_Up> type;
861 template <template <class, class> class _Sp, class _Tp, class _A0, class _Up>
862 struct __pointer_traits_rebind<_Sp<_Tp, _A0>, _Up, true>
864 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
865 typedef typename _Sp<_Tp, _A0>::template rebind<_Up> type;
867 typedef typename _Sp<_Tp, _A0>::template rebind<_Up>::other type;
871 template <template <class, class> class _Sp, class _Tp, class _A0, class _Up>
872 struct __pointer_traits_rebind<_Sp<_Tp, _A0>, _Up, false>
874 typedef _Sp<_Up, _A0> type;
877 template <template <class, class, class> class _Sp, class _Tp, class _A0,
878 class _A1, class _Up>
879 struct __pointer_traits_rebind<_Sp<_Tp, _A0, _A1>, _Up, true>
881 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
882 typedef typename _Sp<_Tp, _A0, _A1>::template rebind<_Up> type;
884 typedef typename _Sp<_Tp, _A0, _A1>::template rebind<_Up>::other type;
888 template <template <class, class, class> class _Sp, class _Tp, class _A0,
889 class _A1, class _Up>
890 struct __pointer_traits_rebind<_Sp<_Tp, _A0, _A1>, _Up, false>
892 typedef _Sp<_Up, _A0, _A1> type;
895 template <template <class, class, class, class> class _Sp, class _Tp, class _A0,
896 class _A1, class _A2, class _Up>
897 struct __pointer_traits_rebind<_Sp<_Tp, _A0, _A1, _A2>, _Up, true>
899 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
900 typedef typename _Sp<_Tp, _A0, _A1, _A2>::template rebind<_Up> type;
902 typedef typename _Sp<_Tp, _A0, _A1, _A2>::template rebind<_Up>::other type;
906 template <template <class, class, class, class> class _Sp, class _Tp, class _A0,
907 class _A1, class _A2, class _Up>
908 struct __pointer_traits_rebind<_Sp<_Tp, _A0, _A1, _A2>, _Up, false>
910 typedef _Sp<_Up, _A0, _A1, _A2> type;
913 #endif // _LIBCPP_HAS_NO_VARIADICS
915 template <class _Ptr>
916 struct _LIBCPP_VISIBLE pointer_traits
918 typedef _Ptr pointer;
919 typedef typename __pointer_traits_element_type<pointer>::type element_type;
920 typedef typename __pointer_traits_difference_type<pointer>::type difference_type;
922 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
923 template <class _Up> using rebind = typename __pointer_traits_rebind<pointer, _Up>::type;
925 template <class _Up> struct rebind
926 {typedef typename __pointer_traits_rebind<pointer, _Up>::type other;};
927 #endif // _LIBCPP_HAS_NO_TEMPLATE_ALIASES
932 _LIBCPP_INLINE_VISIBILITY
933 static pointer pointer_to(typename conditional<is_void<element_type>::value,
934 __nat, element_type>::type& __r)
935 {return pointer::pointer_to(__r);}
939 struct _LIBCPP_VISIBLE pointer_traits<_Tp*>
941 typedef _Tp* pointer;
942 typedef _Tp element_type;
943 typedef ptrdiff_t difference_type;
945 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
946 template <class _Up> using rebind = _Up*;
948 template <class _Up> struct rebind {typedef _Up* other;};
954 _LIBCPP_INLINE_VISIBILITY
955 static pointer pointer_to(typename conditional<is_void<element_type>::value,
956 __nat, element_type>::type& __r) _NOEXCEPT
957 {return _VSTD::addressof(__r);}
962 namespace __has_pointer_type_imp
964 template <class _Up> static __two test(...);
965 template <class _Up> static char test(typename _Up::pointer* = 0);
969 struct __has_pointer_type
970 : public integral_constant<bool, sizeof(__has_pointer_type_imp::test<_Tp>(0)) == 1>
974 namespace __pointer_type_imp
977 template <class _Tp, class _Dp, bool = __has_pointer_type<_Dp>::value>
978 struct __pointer_type
980 typedef typename _Dp::pointer type;
983 template <class _Tp, class _Dp>
984 struct __pointer_type<_Tp, _Dp, false>
989 } // __pointer_type_imp
991 template <class _Tp, class _Dp>
992 struct __pointer_type
994 typedef typename __pointer_type_imp::__pointer_type<_Tp, typename remove_reference<_Dp>::type>::type type;
998 struct __has_const_pointer
1001 struct __two {char __lx; char __lxx;};
1002 template <class _Up> static __two __test(...);
1003 template <class _Up> static char __test(typename _Up::const_pointer* = 0);
1005 static const bool value = sizeof(__test<_Tp>(0)) == 1;
1008 template <class _Tp, class _Ptr, class _Alloc, bool = __has_const_pointer<_Alloc>::value>
1009 struct __const_pointer
1011 typedef typename _Alloc::const_pointer type;
1014 template <class _Tp, class _Ptr, class _Alloc>
1015 struct __const_pointer<_Tp, _Ptr, _Alloc, false>
1017 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
1018 typedef typename pointer_traits<_Ptr>::template rebind<const _Tp> type;
1020 typedef typename pointer_traits<_Ptr>::template rebind<const _Tp>::other type;
1024 template <class _Tp>
1025 struct __has_void_pointer
1028 struct __two {char __lx; char __lxx;};
1029 template <class _Up> static __two __test(...);
1030 template <class _Up> static char __test(typename _Up::void_pointer* = 0);
1032 static const bool value = sizeof(__test<_Tp>(0)) == 1;
1035 template <class _Ptr, class _Alloc, bool = __has_void_pointer<_Alloc>::value>
1036 struct __void_pointer
1038 typedef typename _Alloc::void_pointer type;
1041 template <class _Ptr, class _Alloc>
1042 struct __void_pointer<_Ptr, _Alloc, false>
1044 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
1045 typedef typename pointer_traits<_Ptr>::template rebind<void> type;
1047 typedef typename pointer_traits<_Ptr>::template rebind<void>::other type;
1051 template <class _Tp>
1052 struct __has_const_void_pointer
1055 struct __two {char __lx; char __lxx;};
1056 template <class _Up> static __two __test(...);
1057 template <class _Up> static char __test(typename _Up::const_void_pointer* = 0);
1059 static const bool value = sizeof(__test<_Tp>(0)) == 1;
1062 template <class _Ptr, class _Alloc, bool = __has_const_void_pointer<_Alloc>::value>
1063 struct __const_void_pointer
1065 typedef typename _Alloc::const_void_pointer type;
1068 template <class _Ptr, class _Alloc>
1069 struct __const_void_pointer<_Ptr, _Alloc, false>
1071 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
1072 typedef typename pointer_traits<_Ptr>::template rebind<const void> type;
1074 typedef typename pointer_traits<_Ptr>::template rebind<const void>::other type;
1078 template <class _Tp>
1079 inline _LIBCPP_INLINE_VISIBILITY
1081 __to_raw_pointer(_Tp* __p) _NOEXCEPT
1086 template <class _Pointer>
1087 inline _LIBCPP_INLINE_VISIBILITY
1088 typename pointer_traits<_Pointer>::element_type*
1089 __to_raw_pointer(_Pointer __p) _NOEXCEPT
1091 return _VSTD::__to_raw_pointer(__p.operator->());
1094 template <class _Tp>
1095 struct __has_size_type
1098 struct __two {char __lx; char __lxx;};
1099 template <class _Up> static __two __test(...);
1100 template <class _Up> static char __test(typename _Up::size_type* = 0);
1102 static const bool value = sizeof(__test<_Tp>(0)) == 1;
1105 template <class _Alloc, class _DiffType, bool = __has_size_type<_Alloc>::value>
1108 typedef typename make_unsigned<_DiffType>::type type;
1111 template <class _Alloc, class _DiffType>
1112 struct __size_type<_Alloc, _DiffType, true>
1114 typedef typename _Alloc::size_type type;
1117 template <class _Tp>
1118 struct __has_propagate_on_container_copy_assignment
1121 struct __two {char __lx; char __lxx;};
1122 template <class _Up> static __two __test(...);
1123 template <class _Up> static char __test(typename _Up::propagate_on_container_copy_assignment* = 0);
1125 static const bool value = sizeof(__test<_Tp>(0)) == 1;
1128 template <class _Alloc, bool = __has_propagate_on_container_copy_assignment<_Alloc>::value>
1129 struct __propagate_on_container_copy_assignment
1131 typedef false_type type;
1134 template <class _Alloc>
1135 struct __propagate_on_container_copy_assignment<_Alloc, true>
1137 typedef typename _Alloc::propagate_on_container_copy_assignment type;
1140 template <class _Tp>
1141 struct __has_propagate_on_container_move_assignment
1144 struct __two {char __lx; char __lxx;};
1145 template <class _Up> static __two __test(...);
1146 template <class _Up> static char __test(typename _Up::propagate_on_container_move_assignment* = 0);
1148 static const bool value = sizeof(__test<_Tp>(0)) == 1;
1151 template <class _Alloc, bool = __has_propagate_on_container_move_assignment<_Alloc>::value>
1152 struct __propagate_on_container_move_assignment
1154 typedef false_type type;
1157 template <class _Alloc>
1158 struct __propagate_on_container_move_assignment<_Alloc, true>
1160 typedef typename _Alloc::propagate_on_container_move_assignment type;
1163 template <class _Tp>
1164 struct __has_propagate_on_container_swap
1167 struct __two {char __lx; char __lxx;};
1168 template <class _Up> static __two __test(...);
1169 template <class _Up> static char __test(typename _Up::propagate_on_container_swap* = 0);
1171 static const bool value = sizeof(__test<_Tp>(0)) == 1;
1174 template <class _Alloc, bool = __has_propagate_on_container_swap<_Alloc>::value>
1175 struct __propagate_on_container_swap
1177 typedef false_type type;
1180 template <class _Alloc>
1181 struct __propagate_on_container_swap<_Alloc, true>
1183 typedef typename _Alloc::propagate_on_container_swap type;
1186 template <class _Tp, class _Up, bool = __has_rebind<_Tp, _Up>::value>
1187 struct __has_rebind_other
1190 struct __two {char __lx; char __lxx;};
1191 template <class _Xp> static __two __test(...);
1192 template <class _Xp> static char __test(typename _Xp::template rebind<_Up>::other* = 0);
1194 static const bool value = sizeof(__test<_Tp>(0)) == 1;
1197 template <class _Tp, class _Up>
1198 struct __has_rebind_other<_Tp, _Up, false>
1200 static const bool value = false;
1203 template <class _Tp, class _Up, bool = __has_rebind_other<_Tp, _Up>::value>
1204 struct __allocator_traits_rebind
1206 typedef typename _Tp::template rebind<_Up>::other type;
1209 #ifndef _LIBCPP_HAS_NO_VARIADICS
1211 template <template <class, class...> class _Alloc, class _Tp, class ..._Args, class _Up>
1212 struct __allocator_traits_rebind<_Alloc<_Tp, _Args...>, _Up, true>
1214 typedef typename _Alloc<_Tp, _Args...>::template rebind<_Up>::other type;
1217 template <template <class, class...> class _Alloc, class _Tp, class ..._Args, class _Up>
1218 struct __allocator_traits_rebind<_Alloc<_Tp, _Args...>, _Up, false>
1220 typedef _Alloc<_Up, _Args...> type;
1223 #else // _LIBCPP_HAS_NO_VARIADICS
1225 template <template <class> class _Alloc, class _Tp, class _Up>
1226 struct __allocator_traits_rebind<_Alloc<_Tp>, _Up, true>
1228 typedef typename _Alloc<_Tp>::template rebind<_Up>::other type;
1231 template <template <class> class _Alloc, class _Tp, class _Up>
1232 struct __allocator_traits_rebind<_Alloc<_Tp>, _Up, false>
1234 typedef _Alloc<_Up> type;
1237 template <template <class, class> class _Alloc, class _Tp, class _A0, class _Up>
1238 struct __allocator_traits_rebind<_Alloc<_Tp, _A0>, _Up, true>
1240 typedef typename _Alloc<_Tp, _A0>::template rebind<_Up>::other type;
1243 template <template <class, class> class _Alloc, class _Tp, class _A0, class _Up>
1244 struct __allocator_traits_rebind<_Alloc<_Tp, _A0>, _Up, false>
1246 typedef _Alloc<_Up, _A0> type;
1249 template <template <class, class, class> class _Alloc, class _Tp, class _A0,
1250 class _A1, class _Up>
1251 struct __allocator_traits_rebind<_Alloc<_Tp, _A0, _A1>, _Up, true>
1253 typedef typename _Alloc<_Tp, _A0, _A1>::template rebind<_Up>::other type;
1256 template <template <class, class, class> class _Alloc, class _Tp, class _A0,
1257 class _A1, class _Up>
1258 struct __allocator_traits_rebind<_Alloc<_Tp, _A0, _A1>, _Up, false>
1260 typedef _Alloc<_Up, _A0, _A1> type;
1263 template <template <class, class, class, class> class _Alloc, class _Tp, class _A0,
1264 class _A1, class _A2, class _Up>
1265 struct __allocator_traits_rebind<_Alloc<_Tp, _A0, _A1, _A2>, _Up, true>
1267 typedef typename _Alloc<_Tp, _A0, _A1, _A2>::template rebind<_Up>::other type;
1270 template <template <class, class, class, class> class _Alloc, class _Tp, class _A0,
1271 class _A1, class _A2, class _Up>
1272 struct __allocator_traits_rebind<_Alloc<_Tp, _A0, _A1, _A2>, _Up, false>
1274 typedef _Alloc<_Up, _A0, _A1, _A2> type;
1277 #endif // _LIBCPP_HAS_NO_VARIADICS
1279 #ifndef _LIBCPP_HAS_NO_ADVANCED_SFINAE
1281 template <class _Alloc, class _SizeType, class _ConstVoidPtr>
1283 __has_allocate_hint_test(_Alloc&& __a, _SizeType&& __sz, _ConstVoidPtr&& __p)
1284 -> decltype(__a.allocate(__sz, __p), true_type());
1286 template <class _Alloc, class _SizeType, class _ConstVoidPtr>
1288 __has_allocate_hint_test(const _Alloc& __a, _SizeType&& __sz, _ConstVoidPtr&& __p)
1291 template <class _Alloc, class _SizeType, class _ConstVoidPtr>
1292 struct __has_allocate_hint
1293 : integral_constant<bool,
1295 decltype(__has_allocate_hint_test(declval<_Alloc>(),
1296 declval<_SizeType>(),
1297 declval<_ConstVoidPtr>())),
1302 #else // _LIBCPP_HAS_NO_ADVANCED_SFINAE
1304 template <class _Alloc, class _SizeType, class _ConstVoidPtr>
1305 struct __has_allocate_hint
1310 #endif // _LIBCPP_HAS_NO_ADVANCED_SFINAE
1312 #if !defined(_LIBCPP_HAS_NO_ADVANCED_SFINAE) && !defined(_LIBCPP_HAS_NO_VARIADICS)
1314 template <class _Alloc, class _Tp, class ..._Args>
1315 decltype(_VSTD::declval<_Alloc>().construct(_VSTD::declval<_Tp*>(),
1316 _VSTD::declval<_Args>()...),
1318 __has_construct_test(_Alloc&& __a, _Tp* __p, _Args&& ...__args);
1320 template <class _Alloc, class _Pointer, class ..._Args>
1322 __has_construct_test(const _Alloc& __a, _Pointer&& __p, _Args&& ...__args);
1324 template <class _Alloc, class _Pointer, class ..._Args>
1325 struct __has_construct
1326 : integral_constant<bool,
1328 decltype(__has_construct_test(declval<_Alloc>(),
1329 declval<_Pointer>(),
1330 declval<_Args>()...)),
1335 template <class _Alloc, class _Pointer>
1337 __has_destroy_test(_Alloc&& __a, _Pointer&& __p)
1338 -> decltype(__a.destroy(__p), true_type());
1340 template <class _Alloc, class _Pointer>
1342 __has_destroy_test(const _Alloc& __a, _Pointer&& __p)
1345 template <class _Alloc, class _Pointer>
1346 struct __has_destroy
1347 : integral_constant<bool,
1349 decltype(__has_destroy_test(declval<_Alloc>(),
1350 declval<_Pointer>())),
1355 template <class _Alloc>
1357 __has_max_size_test(_Alloc&& __a)
1358 -> decltype(__a.max_size(), true_type());
1360 template <class _Alloc>
1362 __has_max_size_test(const volatile _Alloc& __a)
1365 template <class _Alloc>
1366 struct __has_max_size
1367 : integral_constant<bool,
1369 decltype(__has_max_size_test(declval<_Alloc&>())),
1374 template <class _Alloc>
1376 __has_select_on_container_copy_construction_test(_Alloc&& __a)
1377 -> decltype(__a.select_on_container_copy_construction(), true_type());
1379 template <class _Alloc>
1381 __has_select_on_container_copy_construction_test(const volatile _Alloc& __a)
1384 template <class _Alloc>
1385 struct __has_select_on_container_copy_construction
1386 : integral_constant<bool,
1388 decltype(__has_select_on_container_copy_construction_test(declval<_Alloc&>())),
1393 #else // _LIBCPP_HAS_NO_ADVANCED_SFINAE
1395 #ifndef _LIBCPP_HAS_NO_VARIADICS
1397 template <class _Alloc, class _Pointer, class ..._Args>
1398 struct __has_construct
1403 #else // _LIBCPP_HAS_NO_VARIADICS
1405 template <class _Alloc, class _Pointer, class _Args>
1406 struct __has_construct
1411 #endif // _LIBCPP_HAS_NO_VARIADICS
1413 template <class _Alloc, class _Pointer>
1414 struct __has_destroy
1419 template <class _Alloc>
1420 struct __has_max_size
1425 template <class _Alloc>
1426 struct __has_select_on_container_copy_construction
1431 #endif // _LIBCPP_HAS_NO_ADVANCED_SFINAE
1433 template <class _Alloc, class _Ptr, bool = __has_difference_type<_Alloc>::value>
1434 struct __alloc_traits_difference_type
1436 typedef typename pointer_traits<_Ptr>::difference_type type;
1439 template <class _Alloc, class _Ptr>
1440 struct __alloc_traits_difference_type<_Alloc, _Ptr, true>
1442 typedef typename _Alloc::difference_type type;
1445 template <class _Alloc>
1446 struct _LIBCPP_VISIBLE allocator_traits
1448 typedef _Alloc allocator_type;
1449 typedef typename allocator_type::value_type value_type;
1451 typedef typename __pointer_type<value_type, allocator_type>::type pointer;
1452 typedef typename __const_pointer<value_type, pointer, allocator_type>::type const_pointer;
1453 typedef typename __void_pointer<pointer, allocator_type>::type void_pointer;
1454 typedef typename __const_void_pointer<pointer, allocator_type>::type const_void_pointer;
1456 typedef typename __alloc_traits_difference_type<allocator_type, pointer>::type difference_type;
1457 typedef typename __size_type<allocator_type, difference_type>::type size_type;
1459 typedef typename __propagate_on_container_copy_assignment<allocator_type>::type
1460 propagate_on_container_copy_assignment;
1461 typedef typename __propagate_on_container_move_assignment<allocator_type>::type
1462 propagate_on_container_move_assignment;
1463 typedef typename __propagate_on_container_swap<allocator_type>::type
1464 propagate_on_container_swap;
1466 #ifndef _LIBCPP_HAS_NO_TEMPLATE_ALIASES
1467 template <class _Tp> using rebind_alloc =
1468 typename __allocator_traits_rebind<allocator_type, _Tp>::type;
1469 template <class _Tp> using rebind_traits = allocator_traits<rebind_alloc<_Tp>>;
1470 #else // _LIBCPP_HAS_NO_TEMPLATE_ALIASES
1471 template <class _Tp> struct rebind_alloc
1472 {typedef typename __allocator_traits_rebind<allocator_type, _Tp>::type other;};
1473 template <class _Tp> struct rebind_traits
1474 {typedef allocator_traits<typename rebind_alloc<_Tp>::other> other;};
1475 #endif // _LIBCPP_HAS_NO_TEMPLATE_ALIASES
1477 _LIBCPP_INLINE_VISIBILITY
1478 static pointer allocate(allocator_type& __a, size_type __n)
1479 {return __a.allocate(__n);}
1480 _LIBCPP_INLINE_VISIBILITY
1481 static pointer allocate(allocator_type& __a, size_type __n, const_void_pointer __hint)
1482 {return allocate(__a, __n, __hint,
1483 __has_allocate_hint<allocator_type, size_type, const_void_pointer>());}
1485 _LIBCPP_INLINE_VISIBILITY
1486 static void deallocate(allocator_type& __a, pointer __p, size_type __n) _NOEXCEPT
1487 {__a.deallocate(__p, __n);}
1489 #ifndef _LIBCPP_HAS_NO_VARIADICS
1490 template <class _Tp, class... _Args>
1491 _LIBCPP_INLINE_VISIBILITY
1492 static void construct(allocator_type& __a, _Tp* __p, _Args&&... __args)
1493 {__construct(__has_construct<allocator_type, pointer, _Args...>(),
1494 __a, __p, _VSTD::forward<_Args>(__args)...);}
1495 #else // _LIBCPP_HAS_NO_VARIADICS
1496 template <class _Tp>
1497 _LIBCPP_INLINE_VISIBILITY
1498 static void construct(allocator_type& __a, _Tp* __p)
1500 ::new ((void*)__p) _Tp();
1502 template <class _Tp, class _A0>
1503 _LIBCPP_INLINE_VISIBILITY
1504 static void construct(allocator_type& __a, _Tp* __p, const _A0& __a0)
1506 ::new ((void*)__p) _Tp(__a0);
1508 template <class _Tp, class _A0, class _A1>
1509 _LIBCPP_INLINE_VISIBILITY
1510 static void construct(allocator_type& __a, _Tp* __p, const _A0& __a0,
1513 ::new ((void*)__p) _Tp(__a0, __a1);
1515 template <class _Tp, class _A0, class _A1, class _A2>
1516 _LIBCPP_INLINE_VISIBILITY
1517 static void construct(allocator_type& __a, _Tp* __p, const _A0& __a0,
1518 const _A1& __a1, const _A2& __a2)
1520 ::new ((void*)__p) _Tp(__a0, __a1, __a2);
1522 #endif // _LIBCPP_HAS_NO_VARIADICS
1524 template <class _Tp>
1525 _LIBCPP_INLINE_VISIBILITY
1526 static void destroy(allocator_type& __a, _Tp* __p)
1527 {__destroy(__has_destroy<allocator_type, _Tp*>(), __a, __p);}
1529 _LIBCPP_INLINE_VISIBILITY
1530 static size_type max_size(const allocator_type& __a)
1531 {return __max_size(__has_max_size<const allocator_type>(), __a);}
1533 _LIBCPP_INLINE_VISIBILITY
1534 static allocator_type
1535 select_on_container_copy_construction(const allocator_type& __a)
1536 {return select_on_container_copy_construction(
1537 __has_select_on_container_copy_construction<const allocator_type>(),
1540 template <class _Ptr>
1541 _LIBCPP_INLINE_VISIBILITY
1544 __construct_forward(allocator_type& __a, _Ptr __begin1, _Ptr __end1, _Ptr& __begin2)
1546 for (; __begin1 != __end1; ++__begin1, ++__begin2)
1547 construct(__a, _VSTD::__to_raw_pointer(__begin2), _VSTD::move_if_noexcept(*__begin1));
1550 template <class _Tp>
1551 _LIBCPP_INLINE_VISIBILITY
1555 (is_same<allocator_type, allocator<_Tp> >::value
1556 || !__has_construct<allocator_type, _Tp*, _Tp>::value) &&
1557 is_trivially_move_constructible<_Tp>::value,
1560 __construct_forward(allocator_type& __a, _Tp* __begin1, _Tp* __end1, _Tp*& __begin2)
1562 ptrdiff_t _Np = __end1 - __begin1;
1563 _VSTD::memcpy(__begin2, __begin1, _Np * sizeof(_Tp));
1567 template <class _Ptr>
1568 _LIBCPP_INLINE_VISIBILITY
1571 __construct_backward(allocator_type& __a, _Ptr __begin1, _Ptr __end1, _Ptr& __end2)
1573 while (__end1 != __begin1)
1574 construct(__a, _VSTD::__to_raw_pointer(--__end2), _VSTD::move_if_noexcept(*--__end1));
1577 template <class _Tp>
1578 _LIBCPP_INLINE_VISIBILITY
1582 (is_same<allocator_type, allocator<_Tp> >::value
1583 || !__has_construct<allocator_type, _Tp*, _Tp>::value) &&
1584 is_trivially_move_constructible<_Tp>::value,
1587 __construct_backward(allocator_type& __a, _Tp* __begin1, _Tp* __end1, _Tp*& __end2)
1589 ptrdiff_t _Np = __end1 - __begin1;
1591 _VSTD::memcpy(__end2, __begin1, _Np * sizeof(_Tp));
1596 _LIBCPP_INLINE_VISIBILITY
1597 static pointer allocate(allocator_type& __a, size_type __n,
1598 const_void_pointer __hint, true_type)
1599 {return __a.allocate(__n, __hint);}
1600 _LIBCPP_INLINE_VISIBILITY
1601 static pointer allocate(allocator_type& __a, size_type __n,
1602 const_void_pointer, false_type)
1603 {return __a.allocate(__n);}
1605 #ifndef _LIBCPP_HAS_NO_VARIADICS
1606 template <class _Tp, class... _Args>
1607 _LIBCPP_INLINE_VISIBILITY
1608 static void __construct(true_type, allocator_type& __a, _Tp* __p, _Args&&... __args)
1609 {__a.construct(__p, _VSTD::forward<_Args>(__args)...);}
1610 template <class _Tp, class... _Args>
1611 _LIBCPP_INLINE_VISIBILITY
1612 static void __construct(false_type, allocator_type&, _Tp* __p, _Args&&... __args)
1614 ::new ((void*)__p) _Tp(_VSTD::forward<_Args>(__args)...);
1616 #endif // _LIBCPP_HAS_NO_VARIADICS
1618 template <class _Tp>
1619 _LIBCPP_INLINE_VISIBILITY
1620 static void __destroy(true_type, allocator_type& __a, _Tp* __p)
1622 template <class _Tp>
1623 _LIBCPP_INLINE_VISIBILITY
1624 static void __destroy(false_type, allocator_type&, _Tp* __p)
1629 _LIBCPP_INLINE_VISIBILITY
1630 static size_type __max_size(true_type, const allocator_type& __a)
1631 {return __a.max_size();}
1632 _LIBCPP_INLINE_VISIBILITY
1633 static size_type __max_size(false_type, const allocator_type&)
1634 {return numeric_limits<size_type>::max();}
1636 _LIBCPP_INLINE_VISIBILITY
1637 static allocator_type
1638 select_on_container_copy_construction(true_type, const allocator_type& __a)
1639 {return __a.select_on_container_copy_construction();}
1640 _LIBCPP_INLINE_VISIBILITY
1641 static allocator_type
1642 select_on_container_copy_construction(false_type, const allocator_type& __a)
1648 template <class _Tp>
1649 class _LIBCPP_VISIBLE allocator
1652 typedef size_t size_type;
1653 typedef ptrdiff_t difference_type;
1654 typedef _Tp* pointer;
1655 typedef const _Tp* const_pointer;
1656 typedef _Tp& reference;
1657 typedef const _Tp& const_reference;
1658 typedef _Tp value_type;
1660 typedef true_type propagate_on_container_move_assignment;
1662 template <class _Up> struct rebind {typedef allocator<_Up> other;};
1664 _LIBCPP_INLINE_VISIBILITY allocator() _NOEXCEPT {}
1665 template <class _Up> _LIBCPP_INLINE_VISIBILITY allocator(const allocator<_Up>&) _NOEXCEPT {}
1666 _LIBCPP_INLINE_VISIBILITY pointer address(reference __x) const _NOEXCEPT
1667 {return _VSTD::addressof(__x);}
1668 _LIBCPP_INLINE_VISIBILITY const_pointer address(const_reference __x) const _NOEXCEPT
1669 {return _VSTD::addressof(__x);}
1670 _LIBCPP_INLINE_VISIBILITY pointer allocate(size_type __n, allocator<void>::const_pointer = 0)
1671 {return static_cast<pointer>(::operator new(__n * sizeof(_Tp)));}
1672 _LIBCPP_INLINE_VISIBILITY void deallocate(pointer __p, size_type) _NOEXCEPT
1673 {::operator delete((void*)__p);}
1674 _LIBCPP_INLINE_VISIBILITY size_type max_size() const _NOEXCEPT
1675 {return size_type(~0) / sizeof(_Tp);}
1676 #if !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_VARIADICS)
1677 template <class _Up, class... _Args>
1678 _LIBCPP_INLINE_VISIBILITY
1680 construct(_Up* __p, _Args&&... __args)
1682 ::new((void*)__p) _Up(_VSTD::forward<_Args>(__args)...);
1684 #else // !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_VARIADICS)
1685 _LIBCPP_INLINE_VISIBILITY
1687 construct(pointer __p)
1689 ::new((void*)__p) _Tp();
1691 # if defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES)
1693 template <class _A0>
1694 _LIBCPP_INLINE_VISIBILITY
1696 construct(pointer __p, _A0& __a0)
1698 ::new((void*)__p) _Tp(__a0);
1700 template <class _A0>
1701 _LIBCPP_INLINE_VISIBILITY
1703 construct(pointer __p, const _A0& __a0)
1705 ::new((void*)__p) _Tp(__a0);
1707 # endif // defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES)
1708 template <class _A0, class _A1>
1709 _LIBCPP_INLINE_VISIBILITY
1711 construct(pointer __p, _A0& __a0, _A1& __a1)
1713 ::new((void*)__p) _Tp(__a0, __a1);
1715 template <class _A0, class _A1>
1716 _LIBCPP_INLINE_VISIBILITY
1718 construct(pointer __p, const _A0& __a0, _A1& __a1)
1720 ::new((void*)__p) _Tp(__a0, __a1);
1722 template <class _A0, class _A1>
1723 _LIBCPP_INLINE_VISIBILITY
1725 construct(pointer __p, _A0& __a0, const _A1& __a1)
1727 ::new((void*)__p) _Tp(__a0, __a1);
1729 template <class _A0, class _A1>
1730 _LIBCPP_INLINE_VISIBILITY
1732 construct(pointer __p, const _A0& __a0, const _A1& __a1)
1734 ::new((void*)__p) _Tp(__a0, __a1);
1736 #endif // !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_VARIADICS)
1737 _LIBCPP_INLINE_VISIBILITY void destroy(pointer __p) {__p->~_Tp();}
1740 template <class _Tp>
1741 class _LIBCPP_VISIBLE allocator<const _Tp>
1744 typedef size_t size_type;
1745 typedef ptrdiff_t difference_type;
1746 typedef const _Tp* pointer;
1747 typedef const _Tp* const_pointer;
1748 typedef const _Tp& reference;
1749 typedef const _Tp& const_reference;
1750 typedef _Tp value_type;
1752 typedef true_type propagate_on_container_move_assignment;
1754 template <class _Up> struct rebind {typedef allocator<_Up> other;};
1756 _LIBCPP_INLINE_VISIBILITY allocator() _NOEXCEPT {}
1757 template <class _Up> _LIBCPP_INLINE_VISIBILITY allocator(const allocator<_Up>&) _NOEXCEPT {}
1758 _LIBCPP_INLINE_VISIBILITY const_pointer address(const_reference __x) const _NOEXCEPT
1759 {return _VSTD::addressof(__x);}
1760 _LIBCPP_INLINE_VISIBILITY pointer allocate(size_type __n, allocator<void>::const_pointer = 0)
1761 {return static_cast<pointer>(::operator new(__n * sizeof(_Tp)));}
1762 _LIBCPP_INLINE_VISIBILITY void deallocate(pointer __p, size_type) _NOEXCEPT
1763 {::operator delete((void*)__p);}
1764 _LIBCPP_INLINE_VISIBILITY size_type max_size() const _NOEXCEPT
1765 {return size_type(~0) / sizeof(_Tp);}
1766 #if !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_VARIADICS)
1767 template <class _Up, class... _Args>
1768 _LIBCPP_INLINE_VISIBILITY
1770 construct(_Up* __p, _Args&&... __args)
1772 ::new((void*)__p) _Up(_VSTD::forward<_Args>(__args)...);
1774 #else // !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_VARIADICS)
1775 _LIBCPP_INLINE_VISIBILITY
1777 construct(pointer __p)
1779 ::new((void*)__p) _Tp();
1781 # if defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES)
1783 template <class _A0>
1784 _LIBCPP_INLINE_VISIBILITY
1786 construct(pointer __p, _A0& __a0)
1788 ::new((void*)__p) _Tp(__a0);
1790 template <class _A0>
1791 _LIBCPP_INLINE_VISIBILITY
1793 construct(pointer __p, const _A0& __a0)
1795 ::new((void*)__p) _Tp(__a0);
1797 # endif // defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES)
1798 template <class _A0, class _A1>
1799 _LIBCPP_INLINE_VISIBILITY
1801 construct(pointer __p, _A0& __a0, _A1& __a1)
1803 ::new((void*)__p) _Tp(__a0, __a1);
1805 template <class _A0, class _A1>
1806 _LIBCPP_INLINE_VISIBILITY
1808 construct(pointer __p, const _A0& __a0, _A1& __a1)
1810 ::new((void*)__p) _Tp(__a0, __a1);
1812 template <class _A0, class _A1>
1813 _LIBCPP_INLINE_VISIBILITY
1815 construct(pointer __p, _A0& __a0, const _A1& __a1)
1817 ::new((void*)__p) _Tp(__a0, __a1);
1819 template <class _A0, class _A1>
1820 _LIBCPP_INLINE_VISIBILITY
1822 construct(pointer __p, const _A0& __a0, const _A1& __a1)
1824 ::new((void*)__p) _Tp(__a0, __a1);
1826 #endif // !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_VARIADICS)
1827 _LIBCPP_INLINE_VISIBILITY void destroy(pointer __p) {__p->~_Tp();}
1830 template <class _Tp, class _Up>
1831 inline _LIBCPP_INLINE_VISIBILITY
1832 bool operator==(const allocator<_Tp>&, const allocator<_Up>&) _NOEXCEPT {return true;}
1834 template <class _Tp, class _Up>
1835 inline _LIBCPP_INLINE_VISIBILITY
1836 bool operator!=(const allocator<_Tp>&, const allocator<_Up>&) _NOEXCEPT {return false;}
1838 template <class _OutputIterator, class _Tp>
1839 class _LIBCPP_VISIBLE raw_storage_iterator
1840 : public iterator<output_iterator_tag,
1841 _Tp, // purposefully not C++03
1842 ptrdiff_t, // purposefully not C++03
1843 _Tp*, // purposefully not C++03
1844 raw_storage_iterator<_OutputIterator, _Tp>&> // purposefully not C++03
1847 _OutputIterator __x_;
1849 _LIBCPP_INLINE_VISIBILITY explicit raw_storage_iterator(_OutputIterator __x) : __x_(__x) {}
1850 _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator*() {return *this;}
1851 _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator=(const _Tp& __element)
1852 {::new(&*__x_) _Tp(__element); return *this;}
1853 _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator++() {++__x_; return *this;}
1854 _LIBCPP_INLINE_VISIBILITY raw_storage_iterator operator++(int)
1855 {raw_storage_iterator __t(*this); ++__x_; return __t;}
1858 template <class _Tp>
1859 pair<_Tp*, ptrdiff_t>
1860 get_temporary_buffer(ptrdiff_t __n) _NOEXCEPT
1862 pair<_Tp*, ptrdiff_t> __r(0, 0);
1863 const ptrdiff_t __m = (~ptrdiff_t(0) ^
1864 ptrdiff_t(ptrdiff_t(1) << (sizeof(ptrdiff_t) * __CHAR_BIT__ - 1)))
1870 __r.first = static_cast<_Tp*>(::operator new(__n * sizeof(_Tp), nothrow));
1881 template <class _Tp>
1882 inline _LIBCPP_INLINE_VISIBILITY
1883 void return_temporary_buffer(_Tp* __p) _NOEXCEPT {::operator delete(__p);}
1885 template <class _Tp>
1892 class _LIBCPP_VISIBLE auto_ptr
1897 typedef _Tp element_type;
1899 _LIBCPP_INLINE_VISIBILITY explicit auto_ptr(_Tp* __p = 0) throw() : __ptr_(__p) {}
1900 _LIBCPP_INLINE_VISIBILITY auto_ptr(auto_ptr& __p) throw() : __ptr_(__p.release()) {}
1901 template<class _Up> _LIBCPP_INLINE_VISIBILITY auto_ptr(auto_ptr<_Up>& __p) throw()
1902 : __ptr_(__p.release()) {}
1903 _LIBCPP_INLINE_VISIBILITY auto_ptr& operator=(auto_ptr& __p) throw()
1904 {reset(__p.release()); return *this;}
1905 template<class _Up> _LIBCPP_INLINE_VISIBILITY auto_ptr& operator=(auto_ptr<_Up>& __p) throw()
1906 {reset(__p.release()); return *this;}
1907 _LIBCPP_INLINE_VISIBILITY auto_ptr& operator=(auto_ptr_ref<_Tp> __p) throw()
1908 {reset(__p.__ptr_); return *this;}
1909 _LIBCPP_INLINE_VISIBILITY ~auto_ptr() throw() {delete __ptr_;}
1911 _LIBCPP_INLINE_VISIBILITY _Tp& operator*() const throw()
1913 _LIBCPP_INLINE_VISIBILITY _Tp* operator->() const throw() {return __ptr_;}
1914 _LIBCPP_INLINE_VISIBILITY _Tp* get() const throw() {return __ptr_;}
1915 _LIBCPP_INLINE_VISIBILITY _Tp* release() throw()
1921 _LIBCPP_INLINE_VISIBILITY void reset(_Tp* __p = 0) throw()
1928 _LIBCPP_INLINE_VISIBILITY auto_ptr(auto_ptr_ref<_Tp> __p) throw() : __ptr_(__p.__ptr_) {}
1929 template<class _Up> _LIBCPP_INLINE_VISIBILITY operator auto_ptr_ref<_Up>() throw()
1930 {auto_ptr_ref<_Up> __t; __t.__ptr_ = release(); return __t;}
1931 template<class _Up> _LIBCPP_INLINE_VISIBILITY operator auto_ptr<_Up>() throw()
1932 {return auto_ptr<_Up>(release());}
1936 class _LIBCPP_VISIBLE auto_ptr<void>
1939 typedef void element_type;
1942 template <class _T1, class _T2, bool = is_same<typename remove_cv<_T1>::type,
1943 typename remove_cv<_T2>::type>::value,
1944 bool = is_empty<_T1>::value
1945 #if __has_feature(is_final)
1949 bool = is_empty<_T2>::value
1950 #if __has_feature(is_final)
1954 struct __libcpp_compressed_pair_switch;
1956 template <class _T1, class _T2, bool IsSame>
1957 struct __libcpp_compressed_pair_switch<_T1, _T2, IsSame, false, false> {enum {value = 0};};
1959 template <class _T1, class _T2, bool IsSame>
1960 struct __libcpp_compressed_pair_switch<_T1, _T2, IsSame, true, false> {enum {value = 1};};
1962 template <class _T1, class _T2, bool IsSame>
1963 struct __libcpp_compressed_pair_switch<_T1, _T2, IsSame, false, true> {enum {value = 2};};
1965 template <class _T1, class _T2>
1966 struct __libcpp_compressed_pair_switch<_T1, _T2, false, true, true> {enum {value = 3};};
1968 template <class _T1, class _T2>
1969 struct __libcpp_compressed_pair_switch<_T1, _T2, true, true, true> {enum {value = 1};};
1971 template <class _T1, class _T2, unsigned = __libcpp_compressed_pair_switch<_T1, _T2>::value>
1972 class __libcpp_compressed_pair_imp;
1974 template <class _T1, class _T2>
1975 class __libcpp_compressed_pair_imp<_T1, _T2, 0>
1981 typedef _T1 _T1_param;
1982 typedef _T2 _T2_param;
1984 typedef typename remove_reference<_T1>::type& _T1_reference;
1985 typedef typename remove_reference<_T2>::type& _T2_reference;
1987 typedef const typename remove_reference<_T1>::type& _T1_const_reference;
1988 typedef const typename remove_reference<_T2>::type& _T2_const_reference;
1990 _LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp() {}
1991 _LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T1_param __t1)
1992 : __first_(_VSTD::forward<_T1_param>(__t1)) {}
1993 _LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T2_param __t2)
1994 : __second_(_VSTD::forward<_T2_param>(__t2)) {}
1995 _LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp(_T1_param __t1, _T2_param __t2)
1996 : __first_(_VSTD::forward<_T1_param>(__t1)), __second_(_VSTD::forward<_T2_param>(__t2)) {}
1998 #ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2000 _LIBCPP_INLINE_VISIBILITY
2001 __libcpp_compressed_pair_imp(const __libcpp_compressed_pair_imp& __p)
2002 _NOEXCEPT_(is_nothrow_copy_constructible<_T1>::value &&
2003 is_nothrow_copy_constructible<_T2>::value)
2004 : __first_(__p.first()),
2005 __second_(__p.second()) {}
2007 _LIBCPP_INLINE_VISIBILITY
2008 __libcpp_compressed_pair_imp& operator=(const __libcpp_compressed_pair_imp& __p)
2009 _NOEXCEPT_(is_nothrow_copy_assignable<_T1>::value &&
2010 is_nothrow_copy_assignable<_T2>::value)
2012 __first_ = __p.first();
2013 __second_ = __p.second();
2017 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2019 _LIBCPP_INLINE_VISIBILITY
2020 __libcpp_compressed_pair_imp(__libcpp_compressed_pair_imp&& __p)
2021 _NOEXCEPT_(is_nothrow_move_constructible<_T1>::value &&
2022 is_nothrow_move_constructible<_T2>::value)
2023 : __first_(_VSTD::forward<_T1>(__p.first())),
2024 __second_(_VSTD::forward<_T2>(__p.second())) {}
2026 _LIBCPP_INLINE_VISIBILITY
2027 __libcpp_compressed_pair_imp& operator=(__libcpp_compressed_pair_imp&& __p)
2028 _NOEXCEPT_(is_nothrow_move_assignable<_T1>::value &&
2029 is_nothrow_move_assignable<_T2>::value)
2031 __first_ = _VSTD::forward<_T1>(__p.first());
2032 __second_ = _VSTD::forward<_T2>(__p.second());
2036 #ifndef _LIBCPP_HAS_NO_VARIADICS
2038 template <class... _Args1, class... _Args2, size_t... _I1, size_t... _I2>
2039 _LIBCPP_INLINE_VISIBILITY
2040 __libcpp_compressed_pair_imp(piecewise_construct_t __pc,
2041 tuple<_Args1...> __first_args,
2042 tuple<_Args2...> __second_args,
2043 __tuple_indices<_I1...>,
2044 __tuple_indices<_I2...>)
2045 : __first_(_VSTD::forward<_Args1>(get<_I1>(__first_args))...),
2046 __second_(_VSTD::forward<_Args2>(get<_I2>(__second_args))...)
2049 #endif // _LIBCPP_HAS_NO_VARIADICS
2051 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2053 #endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2055 _LIBCPP_INLINE_VISIBILITY _T1_reference first() _NOEXCEPT {return __first_;}
2056 _LIBCPP_INLINE_VISIBILITY _T1_const_reference first() const _NOEXCEPT {return __first_;}
2058 _LIBCPP_INLINE_VISIBILITY _T2_reference second() _NOEXCEPT {return __second_;}
2059 _LIBCPP_INLINE_VISIBILITY _T2_const_reference second() const _NOEXCEPT {return __second_;}
2061 _LIBCPP_INLINE_VISIBILITY void swap(__libcpp_compressed_pair_imp& __x)
2062 _NOEXCEPT_(__is_nothrow_swappable<_T1>::value &&
2063 __is_nothrow_swappable<_T1>::value)
2066 swap(__first_, __x.__first_);
2067 swap(__second_, __x.__second_);
2071 template <class _T1, class _T2>
2072 class __libcpp_compressed_pair_imp<_T1, _T2, 1>
2078 typedef _T1 _T1_param;
2079 typedef _T2 _T2_param;
2081 typedef _T1& _T1_reference;
2082 typedef typename remove_reference<_T2>::type& _T2_reference;
2084 typedef const _T1& _T1_const_reference;
2085 typedef const typename remove_reference<_T2>::type& _T2_const_reference;
2087 _LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp() {}
2088 _LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T1_param __t1)
2089 : _T1(_VSTD::forward<_T1_param>(__t1)) {}
2090 _LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T2_param __t2)
2091 : __second_(_VSTD::forward<_T2_param>(__t2)) {}
2092 _LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp(_T1_param __t1, _T2_param __t2)
2093 : _T1(_VSTD::forward<_T1_param>(__t1)), __second_(_VSTD::forward<_T2_param>(__t2)) {}
2095 #ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2097 _LIBCPP_INLINE_VISIBILITY
2098 __libcpp_compressed_pair_imp(const __libcpp_compressed_pair_imp& __p)
2099 _NOEXCEPT_(is_nothrow_copy_constructible<_T1>::value &&
2100 is_nothrow_copy_constructible<_T2>::value)
2101 : _T1(__p.first()), __second_(__p.second()) {}
2103 _LIBCPP_INLINE_VISIBILITY
2104 __libcpp_compressed_pair_imp& operator=(const __libcpp_compressed_pair_imp& __p)
2105 _NOEXCEPT_(is_nothrow_copy_assignable<_T1>::value &&
2106 is_nothrow_copy_assignable<_T2>::value)
2108 _T1::operator=(__p.first());
2109 __second_ = __p.second();
2113 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2115 _LIBCPP_INLINE_VISIBILITY
2116 __libcpp_compressed_pair_imp(__libcpp_compressed_pair_imp&& __p)
2117 _NOEXCEPT_(is_nothrow_move_constructible<_T1>::value &&
2118 is_nothrow_move_constructible<_T2>::value)
2119 : _T1(_VSTD::move(__p.first())), __second_(_VSTD::forward<_T2>(__p.second())) {}
2121 _LIBCPP_INLINE_VISIBILITY
2122 __libcpp_compressed_pair_imp& operator=(__libcpp_compressed_pair_imp&& __p)
2123 _NOEXCEPT_(is_nothrow_move_assignable<_T1>::value &&
2124 is_nothrow_move_assignable<_T2>::value)
2126 _T1::operator=(_VSTD::move(__p.first()));
2127 __second_ = _VSTD::forward<_T2>(__p.second());
2131 #ifndef _LIBCPP_HAS_NO_VARIADICS
2133 template <class... _Args1, class... _Args2, size_t... _I1, size_t... _I2>
2134 _LIBCPP_INLINE_VISIBILITY
2135 __libcpp_compressed_pair_imp(piecewise_construct_t __pc,
2136 tuple<_Args1...> __first_args,
2137 tuple<_Args2...> __second_args,
2138 __tuple_indices<_I1...>,
2139 __tuple_indices<_I2...>)
2140 : _T1(_VSTD::forward<_Args1>(get<_I1>(__first_args))...),
2141 __second_(_VSTD::forward<_Args2>(get<_I2>(__second_args))...)
2144 #endif // _LIBCPP_HAS_NO_VARIADICS
2146 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2148 #endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2150 _LIBCPP_INLINE_VISIBILITY _T1_reference first() _NOEXCEPT {return *this;}
2151 _LIBCPP_INLINE_VISIBILITY _T1_const_reference first() const _NOEXCEPT {return *this;}
2153 _LIBCPP_INLINE_VISIBILITY _T2_reference second() _NOEXCEPT {return __second_;}
2154 _LIBCPP_INLINE_VISIBILITY _T2_const_reference second() const _NOEXCEPT {return __second_;}
2156 _LIBCPP_INLINE_VISIBILITY void swap(__libcpp_compressed_pair_imp& __x)
2157 _NOEXCEPT_(__is_nothrow_swappable<_T1>::value &&
2158 __is_nothrow_swappable<_T1>::value)
2161 swap(__second_, __x.__second_);
2165 template <class _T1, class _T2>
2166 class __libcpp_compressed_pair_imp<_T1, _T2, 2>
2172 typedef _T1 _T1_param;
2173 typedef _T2 _T2_param;
2175 typedef typename remove_reference<_T1>::type& _T1_reference;
2176 typedef _T2& _T2_reference;
2178 typedef const typename remove_reference<_T1>::type& _T1_const_reference;
2179 typedef const _T2& _T2_const_reference;
2181 _LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp() {}
2182 _LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T1_param __t1)
2183 : __first_(_VSTD::forward<_T1_param>(__t1)) {}
2184 _LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T2_param __t2)
2185 : _T2(_VSTD::forward<_T2_param>(__t2)) {}
2186 _LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp(_T1_param __t1, _T2_param __t2)
2187 _NOEXCEPT_(is_nothrow_move_constructible<_T1>::value &&
2188 is_nothrow_move_constructible<_T2>::value)
2189 : _T2(_VSTD::forward<_T2_param>(__t2)), __first_(_VSTD::forward<_T1_param>(__t1)) {}
2191 #ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2193 _LIBCPP_INLINE_VISIBILITY
2194 __libcpp_compressed_pair_imp(const __libcpp_compressed_pair_imp& __p)
2195 _NOEXCEPT_(is_nothrow_copy_constructible<_T1>::value &&
2196 is_nothrow_copy_constructible<_T2>::value)
2197 : _T2(__p.second()), __first_(__p.first()) {}
2199 _LIBCPP_INLINE_VISIBILITY
2200 __libcpp_compressed_pair_imp& operator=(const __libcpp_compressed_pair_imp& __p)
2201 _NOEXCEPT_(is_nothrow_copy_assignable<_T1>::value &&
2202 is_nothrow_copy_assignable<_T2>::value)
2204 _T2::operator=(__p.second());
2205 __first_ = __p.first();
2209 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2211 _LIBCPP_INLINE_VISIBILITY
2212 __libcpp_compressed_pair_imp(__libcpp_compressed_pair_imp&& __p)
2213 _NOEXCEPT_(is_nothrow_move_constructible<_T1>::value &&
2214 is_nothrow_move_constructible<_T2>::value)
2215 : _T2(_VSTD::forward<_T2>(__p.second())), __first_(_VSTD::move(__p.first())) {}
2217 _LIBCPP_INLINE_VISIBILITY
2218 __libcpp_compressed_pair_imp& operator=(__libcpp_compressed_pair_imp&& __p)
2219 _NOEXCEPT_(is_nothrow_move_assignable<_T1>::value &&
2220 is_nothrow_move_assignable<_T2>::value)
2222 _T2::operator=(_VSTD::forward<_T2>(__p.second()));
2223 __first_ = _VSTD::move(__p.first());
2227 #ifndef _LIBCPP_HAS_NO_VARIADICS
2229 template <class... _Args1, class... _Args2, size_t... _I1, size_t... _I2>
2230 _LIBCPP_INLINE_VISIBILITY
2231 __libcpp_compressed_pair_imp(piecewise_construct_t __pc,
2232 tuple<_Args1...> __first_args,
2233 tuple<_Args2...> __second_args,
2234 __tuple_indices<_I1...>,
2235 __tuple_indices<_I2...>)
2236 : _T2(_VSTD::forward<_Args2>(get<_I2>(__second_args))...),
2237 __first_(_VSTD::forward<_Args1>(get<_I1>(__first_args))...)
2241 #endif // _LIBCPP_HAS_NO_VARIADICS
2243 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2245 #endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2247 _LIBCPP_INLINE_VISIBILITY _T1_reference first() _NOEXCEPT {return __first_;}
2248 _LIBCPP_INLINE_VISIBILITY _T1_const_reference first() const _NOEXCEPT {return __first_;}
2250 _LIBCPP_INLINE_VISIBILITY _T2_reference second() _NOEXCEPT {return *this;}
2251 _LIBCPP_INLINE_VISIBILITY _T2_const_reference second() const _NOEXCEPT {return *this;}
2253 _LIBCPP_INLINE_VISIBILITY void swap(__libcpp_compressed_pair_imp& __x)
2254 _NOEXCEPT_(__is_nothrow_swappable<_T1>::value &&
2255 __is_nothrow_swappable<_T1>::value)
2258 swap(__first_, __x.__first_);
2262 template <class _T1, class _T2>
2263 class __libcpp_compressed_pair_imp<_T1, _T2, 3>
2268 typedef _T1 _T1_param;
2269 typedef _T2 _T2_param;
2271 typedef _T1& _T1_reference;
2272 typedef _T2& _T2_reference;
2274 typedef const _T1& _T1_const_reference;
2275 typedef const _T2& _T2_const_reference;
2277 _LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp() {}
2278 _LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T1_param __t1)
2279 : _T1(_VSTD::forward<_T1_param>(__t1)) {}
2280 _LIBCPP_INLINE_VISIBILITY explicit __libcpp_compressed_pair_imp(_T2_param __t2)
2281 : _T2(_VSTD::forward<_T2_param>(__t2)) {}
2282 _LIBCPP_INLINE_VISIBILITY __libcpp_compressed_pair_imp(_T1_param __t1, _T2_param __t2)
2283 : _T1(_VSTD::forward<_T1_param>(__t1)), _T2(_VSTD::forward<_T2_param>(__t2)) {}
2285 #ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2287 _LIBCPP_INLINE_VISIBILITY
2288 __libcpp_compressed_pair_imp(const __libcpp_compressed_pair_imp& __p)
2289 _NOEXCEPT_(is_nothrow_copy_constructible<_T1>::value &&
2290 is_nothrow_copy_constructible<_T2>::value)
2291 : _T1(__p.first()), _T2(__p.second()) {}
2293 _LIBCPP_INLINE_VISIBILITY
2294 __libcpp_compressed_pair_imp& operator=(const __libcpp_compressed_pair_imp& __p)
2295 _NOEXCEPT_(is_nothrow_copy_assignable<_T1>::value &&
2296 is_nothrow_copy_assignable<_T2>::value)
2298 _T1::operator=(__p.first());
2299 _T2::operator=(__p.second());
2303 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2305 _LIBCPP_INLINE_VISIBILITY
2306 __libcpp_compressed_pair_imp(__libcpp_compressed_pair_imp&& __p)
2307 _NOEXCEPT_(is_nothrow_move_constructible<_T1>::value &&
2308 is_nothrow_move_constructible<_T2>::value)
2309 : _T1(_VSTD::move(__p.first())), _T2(_VSTD::move(__p.second())) {}
2311 _LIBCPP_INLINE_VISIBILITY
2312 __libcpp_compressed_pair_imp& operator=(__libcpp_compressed_pair_imp&& __p)
2313 _NOEXCEPT_(is_nothrow_move_assignable<_T1>::value &&
2314 is_nothrow_move_assignable<_T2>::value)
2316 _T1::operator=(_VSTD::move(__p.first()));
2317 _T2::operator=(_VSTD::move(__p.second()));
2321 #ifndef _LIBCPP_HAS_NO_VARIADICS
2323 template <class... _Args1, class... _Args2, size_t... _I1, size_t... _I2>
2324 _LIBCPP_INLINE_VISIBILITY
2325 __libcpp_compressed_pair_imp(piecewise_construct_t __pc,
2326 tuple<_Args1...> __first_args,
2327 tuple<_Args2...> __second_args,
2328 __tuple_indices<_I1...>,
2329 __tuple_indices<_I2...>)
2330 : _T1(_VSTD::forward<_Args1>(get<_I1>(__first_args))...),
2331 _T2(_VSTD::forward<_Args2>(get<_I2>(__second_args))...)
2334 #endif // _LIBCPP_HAS_NO_VARIADICS
2336 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2338 #endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2340 _LIBCPP_INLINE_VISIBILITY _T1_reference first() _NOEXCEPT {return *this;}
2341 _LIBCPP_INLINE_VISIBILITY _T1_const_reference first() const _NOEXCEPT {return *this;}
2343 _LIBCPP_INLINE_VISIBILITY _T2_reference second() _NOEXCEPT {return *this;}
2344 _LIBCPP_INLINE_VISIBILITY _T2_const_reference second() const _NOEXCEPT {return *this;}
2346 _LIBCPP_INLINE_VISIBILITY void swap(__libcpp_compressed_pair_imp&)
2347 _NOEXCEPT_(__is_nothrow_swappable<_T1>::value &&
2348 __is_nothrow_swappable<_T1>::value)
2353 template <class _T1, class _T2>
2354 class __compressed_pair
2355 : private __libcpp_compressed_pair_imp<_T1, _T2>
2357 typedef __libcpp_compressed_pair_imp<_T1, _T2> base;
2359 typedef typename base::_T1_param _T1_param;
2360 typedef typename base::_T2_param _T2_param;
2362 typedef typename base::_T1_reference _T1_reference;
2363 typedef typename base::_T2_reference _T2_reference;
2365 typedef typename base::_T1_const_reference _T1_const_reference;
2366 typedef typename base::_T2_const_reference _T2_const_reference;
2368 _LIBCPP_INLINE_VISIBILITY __compressed_pair() {}
2369 _LIBCPP_INLINE_VISIBILITY explicit __compressed_pair(_T1_param __t1)
2370 : base(_VSTD::forward<_T1_param>(__t1)) {}
2371 _LIBCPP_INLINE_VISIBILITY explicit __compressed_pair(_T2_param __t2)
2372 : base(_VSTD::forward<_T2_param>(__t2)) {}
2373 _LIBCPP_INLINE_VISIBILITY __compressed_pair(_T1_param __t1, _T2_param __t2)
2374 : base(_VSTD::forward<_T1_param>(__t1), _VSTD::forward<_T2_param>(__t2)) {}
2376 #ifdef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2378 _LIBCPP_INLINE_VISIBILITY
2379 __compressed_pair(const __compressed_pair& __p)
2380 _NOEXCEPT_(is_nothrow_copy_constructible<_T1>::value &&
2381 is_nothrow_copy_constructible<_T2>::value)
2384 _LIBCPP_INLINE_VISIBILITY
2385 __compressed_pair& operator=(const __compressed_pair& __p)
2386 _NOEXCEPT_(is_nothrow_copy_assignable<_T1>::value &&
2387 is_nothrow_copy_assignable<_T2>::value)
2389 base::operator=(__p);
2393 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2394 _LIBCPP_INLINE_VISIBILITY
2395 __compressed_pair(__compressed_pair&& __p)
2396 _NOEXCEPT_(is_nothrow_move_constructible<_T1>::value &&
2397 is_nothrow_move_constructible<_T2>::value)
2398 : base(_VSTD::move(__p)) {}
2400 _LIBCPP_INLINE_VISIBILITY
2401 __compressed_pair& operator=(__compressed_pair&& __p)
2402 _NOEXCEPT_(is_nothrow_move_assignable<_T1>::value &&
2403 is_nothrow_move_assignable<_T2>::value)
2405 base::operator=(_VSTD::move(__p));
2409 #ifndef _LIBCPP_HAS_NO_VARIADICS
2411 template <class... _Args1, class... _Args2>
2412 _LIBCPP_INLINE_VISIBILITY
2413 __compressed_pair(piecewise_construct_t __pc, tuple<_Args1...> __first_args,
2414 tuple<_Args2...> __second_args)
2415 : base(__pc, _VSTD::move(__first_args), _VSTD::move(__second_args),
2416 typename __make_tuple_indices<sizeof...(_Args1)>::type(),
2417 typename __make_tuple_indices<sizeof...(_Args2) >::type())
2420 #endif // _LIBCPP_HAS_NO_VARIADICS
2422 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2424 #endif // _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2426 _LIBCPP_INLINE_VISIBILITY _T1_reference first() _NOEXCEPT {return base::first();}
2427 _LIBCPP_INLINE_VISIBILITY _T1_const_reference first() const _NOEXCEPT {return base::first();}
2429 _LIBCPP_INLINE_VISIBILITY _T2_reference second() _NOEXCEPT {return base::second();}
2430 _LIBCPP_INLINE_VISIBILITY _T2_const_reference second() const _NOEXCEPT {return base::second();}
2432 _LIBCPP_INLINE_VISIBILITY void swap(__compressed_pair& __x)
2433 _NOEXCEPT_(__is_nothrow_swappable<_T1>::value &&
2434 __is_nothrow_swappable<_T1>::value)
2438 template <class _T1, class _T2>
2439 inline _LIBCPP_INLINE_VISIBILITY
2441 swap(__compressed_pair<_T1, _T2>& __x, __compressed_pair<_T1, _T2>& __y)
2442 _NOEXCEPT_(__is_nothrow_swappable<_T1>::value &&
2443 __is_nothrow_swappable<_T1>::value)
2446 // __same_or_less_cv_qualified
2448 template <class _Ptr1, class _Ptr2,
2449 bool = is_same<typename remove_cv<typename pointer_traits<_Ptr1>::element_type>::type,
2450 typename remove_cv<typename pointer_traits<_Ptr2>::element_type>::type
2453 struct __same_or_less_cv_qualified_imp
2454 : is_convertible<_Ptr1, _Ptr2> {};
2456 template <class _Ptr1, class _Ptr2>
2457 struct __same_or_less_cv_qualified_imp<_Ptr1, _Ptr2, false>
2460 template <class _Ptr1, class _Ptr2, bool = is_scalar<_Ptr1>::value &&
2461 !is_pointer<_Ptr1>::value>
2462 struct __same_or_less_cv_qualified
2463 : __same_or_less_cv_qualified_imp<_Ptr1, _Ptr2> {};
2465 template <class _Ptr1, class _Ptr2>
2466 struct __same_or_less_cv_qualified<_Ptr1, _Ptr2, true>
2471 template <class _Tp>
2472 struct _LIBCPP_VISIBLE default_delete
2474 #ifndef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2475 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR default_delete() _NOEXCEPT = default;
2477 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR default_delete() _NOEXCEPT {}
2479 template <class _Up>
2480 _LIBCPP_INLINE_VISIBILITY default_delete(const default_delete<_Up>&,
2481 typename enable_if<is_convertible<_Up*, _Tp*>::value>::type* = 0) _NOEXCEPT {}
2482 _LIBCPP_INLINE_VISIBILITY void operator() (_Tp* __ptr) const _NOEXCEPT
2484 static_assert(sizeof(_Tp) > 0, "default_delete can not delete incomplete type");
2489 template <class _Tp>
2490 struct _LIBCPP_VISIBLE default_delete<_Tp[]>
2493 #ifndef _LIBCPP_HAS_NO_DEFAULTED_FUNCTIONS
2494 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR default_delete() _NOEXCEPT = default;
2496 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR default_delete() _NOEXCEPT {}
2498 template <class _Up>
2499 _LIBCPP_INLINE_VISIBILITY default_delete(const default_delete<_Up[]>&,
2500 typename enable_if<__same_or_less_cv_qualified<_Up*, _Tp*>::value>::type* = 0) _NOEXCEPT {}
2501 template <class _Up>
2502 _LIBCPP_INLINE_VISIBILITY
2503 void operator() (_Up* __ptr,
2504 typename enable_if<__same_or_less_cv_qualified<_Up*, _Tp*>::value>::type* = 0) const _NOEXCEPT
2506 static_assert(sizeof(_Tp) > 0, "default_delete can not delete incomplete type");
2511 template <class _Tp, class _Dp = default_delete<_Tp> >
2512 class _LIBCPP_VISIBLE unique_ptr
2515 typedef _Tp element_type;
2516 typedef _Dp deleter_type;
2517 typedef typename __pointer_type<_Tp, deleter_type>::type pointer;
2519 __compressed_pair<pointer, deleter_type> __ptr_;
2521 #ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2522 unique_ptr(unique_ptr&);
2523 template <class _Up, class _Ep>
2524 unique_ptr(unique_ptr<_Up, _Ep>&);
2525 unique_ptr& operator=(unique_ptr&);
2526 template <class _Up, class _Ep>
2527 unique_ptr& operator=(unique_ptr<_Up, _Ep>&);
2528 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2530 struct __nat {int __for_bool_;};
2532 typedef typename remove_reference<deleter_type>::type& _Dp_reference;
2533 typedef const typename remove_reference<deleter_type>::type& _Dp_const_reference;
2535 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR unique_ptr() _NOEXCEPT
2538 static_assert(!is_pointer<deleter_type>::value,
2539 "unique_ptr constructed with null function pointer deleter");
2541 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR unique_ptr(nullptr_t) _NOEXCEPT
2544 static_assert(!is_pointer<deleter_type>::value,
2545 "unique_ptr constructed with null function pointer deleter");
2547 _LIBCPP_INLINE_VISIBILITY explicit unique_ptr(pointer __p) _NOEXCEPT
2548 : __ptr_(_VSTD::move(__p))
2550 static_assert(!is_pointer<deleter_type>::value,
2551 "unique_ptr constructed with null function pointer deleter");
2554 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2555 _LIBCPP_INLINE_VISIBILITY unique_ptr(pointer __p, typename conditional<
2556 is_reference<deleter_type>::value,
2558 typename add_lvalue_reference<const deleter_type>::type>::type __d)
2560 : __ptr_(__p, __d) {}
2562 _LIBCPP_INLINE_VISIBILITY unique_ptr(pointer __p, typename remove_reference<deleter_type>::type&& __d)
2564 : __ptr_(__p, _VSTD::move(__d))
2566 static_assert(!is_reference<deleter_type>::value, "rvalue deleter bound to reference");
2568 _LIBCPP_INLINE_VISIBILITY unique_ptr(unique_ptr&& __u) _NOEXCEPT
2569 : __ptr_(__u.release(), _VSTD::forward<deleter_type>(__u.get_deleter())) {}
2570 template <class _Up, class _Ep>
2571 _LIBCPP_INLINE_VISIBILITY
2572 unique_ptr(unique_ptr<_Up, _Ep>&& __u,
2575 !is_array<_Up>::value &&
2576 is_convertible<typename unique_ptr<_Up, _Ep>::pointer, pointer>::value &&
2577 is_convertible<_Ep, deleter_type>::value &&
2579 !is_reference<deleter_type>::value ||
2580 is_same<deleter_type, _Ep>::value
2583 >::type = __nat()) _NOEXCEPT
2584 : __ptr_(__u.release(), _VSTD::forward<_Ep>(__u.get_deleter())) {}
2586 template <class _Up>
2587 _LIBCPP_INLINE_VISIBILITY unique_ptr(auto_ptr<_Up>&& __p,
2589 is_convertible<_Up*, _Tp*>::value &&
2590 is_same<_Dp, default_delete<_Tp> >::value,
2592 >::type = __nat()) _NOEXCEPT
2593 : __ptr_(__p.release())
2597 _LIBCPP_INLINE_VISIBILITY unique_ptr& operator=(unique_ptr&& __u) _NOEXCEPT
2599 reset(__u.release());
2600 __ptr_.second() = _VSTD::forward<deleter_type>(__u.get_deleter());
2604 template <class _Up, class _Ep>
2605 _LIBCPP_INLINE_VISIBILITY
2608 !is_array<_Up>::value &&
2609 is_convertible<typename unique_ptr<_Up, _Ep>::pointer, pointer>::value &&
2610 is_assignable<deleter_type&, _Ep&&>::value,
2613 operator=(unique_ptr<_Up, _Ep>&& __u) _NOEXCEPT
2615 reset(__u.release());
2616 __ptr_.second() = _VSTD::forward<_Ep>(__u.get_deleter());
2619 #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2621 _LIBCPP_INLINE_VISIBILITY operator __rv<unique_ptr>()
2623 return __rv<unique_ptr>(*this);
2626 _LIBCPP_INLINE_VISIBILITY unique_ptr(__rv<unique_ptr> __u)
2627 : __ptr_(__u->release(), _VSTD::forward<deleter_type>(__u->get_deleter())) {}
2629 template <class _Up, class _Ep>
2630 _LIBCPP_INLINE_VISIBILITY unique_ptr& operator=(unique_ptr<_Up, _Ep> __u)
2632 reset(__u.release());
2633 __ptr_.second() = _VSTD::forward<deleter_type>(__u.get_deleter());
2637 _LIBCPP_INLINE_VISIBILITY unique_ptr(pointer __p, deleter_type __d)
2638 : __ptr_(_VSTD::move(__p), _VSTD::move(__d)) {}
2640 template <class _Up>
2641 _LIBCPP_INLINE_VISIBILITY
2643 is_convertible<_Up*, _Tp*>::value &&
2644 is_same<_Dp, default_delete<_Tp> >::value,
2647 operator=(auto_ptr<_Up> __p)
2648 {reset(__p.release()); return *this;}
2650 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2651 _LIBCPP_INLINE_VISIBILITY ~unique_ptr() {reset();}
2653 _LIBCPP_INLINE_VISIBILITY unique_ptr& operator=(nullptr_t) _NOEXCEPT
2659 _LIBCPP_INLINE_VISIBILITY typename add_lvalue_reference<_Tp>::type operator*() const
2660 {return *__ptr_.first();}
2661 _LIBCPP_INLINE_VISIBILITY pointer operator->() const _NOEXCEPT {return __ptr_.first();}
2662 _LIBCPP_INLINE_VISIBILITY pointer get() const _NOEXCEPT {return __ptr_.first();}
2663 _LIBCPP_INLINE_VISIBILITY _Dp_reference get_deleter() _NOEXCEPT
2664 {return __ptr_.second();}
2665 _LIBCPP_INLINE_VISIBILITY _Dp_const_reference get_deleter() const _NOEXCEPT
2666 {return __ptr_.second();}
2667 _LIBCPP_INLINE_VISIBILITY
2668 _LIBCPP_EXPLICIT operator bool() const _NOEXCEPT
2669 {return __ptr_.first() != nullptr;}
2671 _LIBCPP_INLINE_VISIBILITY pointer release() _NOEXCEPT
2673 pointer __t = __ptr_.first();
2674 __ptr_.first() = pointer();
2678 _LIBCPP_INLINE_VISIBILITY void reset(pointer __p = pointer()) _NOEXCEPT
2680 pointer __tmp = __ptr_.first();
2681 __ptr_.first() = __p;
2683 __ptr_.second()(__tmp);
2686 _LIBCPP_INLINE_VISIBILITY void swap(unique_ptr& __u) _NOEXCEPT
2687 {__ptr_.swap(__u.__ptr_);}
2690 template <class _Tp, class _Dp>
2691 class _LIBCPP_VISIBLE unique_ptr<_Tp[], _Dp>
2694 typedef _Tp element_type;
2695 typedef _Dp deleter_type;
2696 typedef typename __pointer_type<_Tp, deleter_type>::type pointer;
2698 __compressed_pair<pointer, deleter_type> __ptr_;
2700 #ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2701 unique_ptr(unique_ptr&);
2702 template <class _Up>
2703 unique_ptr(unique_ptr<_Up>&);
2704 unique_ptr& operator=(unique_ptr&);
2705 template <class _Up>
2706 unique_ptr& operator=(unique_ptr<_Up>&);
2707 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2709 struct __nat {int __for_bool_;};
2711 typedef typename remove_reference<deleter_type>::type& _Dp_reference;
2712 typedef const typename remove_reference<deleter_type>::type& _Dp_const_reference;
2714 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR unique_ptr() _NOEXCEPT
2717 static_assert(!is_pointer<deleter_type>::value,
2718 "unique_ptr constructed with null function pointer deleter");
2720 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR unique_ptr(nullptr_t) _NOEXCEPT
2723 static_assert(!is_pointer<deleter_type>::value,
2724 "unique_ptr constructed with null function pointer deleter");
2726 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2727 template <class _Pp,
2728 class = typename enable_if<__same_or_less_cv_qualified<_Pp, pointer>::value>::type
2730 _LIBCPP_INLINE_VISIBILITY explicit unique_ptr(_Pp __p) _NOEXCEPT
2733 static_assert(!is_pointer<deleter_type>::value,
2734 "unique_ptr constructed with null function pointer deleter");
2737 template <class _Pp,
2738 class = typename enable_if<__same_or_less_cv_qualified<_Pp, pointer>::value>::type
2740 _LIBCPP_INLINE_VISIBILITY unique_ptr(_Pp __p, typename conditional<
2741 is_reference<deleter_type>::value,
2743 typename add_lvalue_reference<const deleter_type>::type>::type __d)
2745 : __ptr_(__p, __d) {}
2747 _LIBCPP_INLINE_VISIBILITY unique_ptr(nullptr_t, typename conditional<
2748 is_reference<deleter_type>::value,
2750 typename add_lvalue_reference<const deleter_type>::type>::type __d)
2752 : __ptr_(pointer(), __d) {}
2754 template <class _Pp,
2755 class = typename enable_if<__same_or_less_cv_qualified<_Pp, pointer>::value>::type
2757 _LIBCPP_INLINE_VISIBILITY unique_ptr(_Pp __p, typename remove_reference<deleter_type>::type&& __d)
2759 : __ptr_(__p, _VSTD::move(__d))
2761 static_assert(!is_reference<deleter_type>::value, "rvalue deleter bound to reference");
2764 _LIBCPP_INLINE_VISIBILITY unique_ptr(nullptr_t, typename remove_reference<deleter_type>::type&& __d)
2766 : __ptr_(pointer(), _VSTD::move(__d))
2768 static_assert(!is_reference<deleter_type>::value, "rvalue deleter bound to reference");
2771 _LIBCPP_INLINE_VISIBILITY unique_ptr(unique_ptr&& __u) _NOEXCEPT
2772 : __ptr_(__u.release(), _VSTD::forward<deleter_type>(__u.get_deleter())) {}
2774 _LIBCPP_INLINE_VISIBILITY unique_ptr& operator=(unique_ptr&& __u) _NOEXCEPT
2776 reset(__u.release());
2777 __ptr_.second() = _VSTD::forward<deleter_type>(__u.get_deleter());
2781 template <class _Up, class _Ep>
2782 _LIBCPP_INLINE_VISIBILITY
2783 unique_ptr(unique_ptr<_Up, _Ep>&& __u,
2786 is_array<_Up>::value &&
2787 __same_or_less_cv_qualified<typename unique_ptr<_Up, _Ep>::pointer, pointer>::value
2788 && is_convertible<_Ep, deleter_type>::value &&
2790 !is_reference<deleter_type>::value ||
2791 is_same<deleter_type, _Ep>::value
2796 : __ptr_(__u.release(), _VSTD::forward<deleter_type>(__u.get_deleter())) {}
2799 template <class _Up, class _Ep>
2800 _LIBCPP_INLINE_VISIBILITY
2803 is_array<_Up>::value &&
2804 __same_or_less_cv_qualified<typename unique_ptr<_Up, _Ep>::pointer, pointer>::value &&
2805 is_assignable<deleter_type&, _Ep&&>::value,
2808 operator=(unique_ptr<_Up, _Ep>&& __u) _NOEXCEPT
2810 reset(__u.release());
2811 __ptr_.second() = _VSTD::forward<_Ep>(__u.get_deleter());
2814 #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2816 _LIBCPP_INLINE_VISIBILITY explicit unique_ptr(pointer __p)
2819 static_assert(!is_pointer<deleter_type>::value,
2820 "unique_ptr constructed with null function pointer deleter");
2823 _LIBCPP_INLINE_VISIBILITY unique_ptr(pointer __p, deleter_type __d)
2824 : __ptr_(__p, _VSTD::forward<deleter_type>(__d)) {}
2826 _LIBCPP_INLINE_VISIBILITY unique_ptr(nullptr_t, deleter_type __d)
2827 : __ptr_(pointer(), _VSTD::forward<deleter_type>(__d)) {}
2829 _LIBCPP_INLINE_VISIBILITY operator __rv<unique_ptr>()
2831 return __rv<unique_ptr>(*this);
2834 _LIBCPP_INLINE_VISIBILITY unique_ptr(__rv<unique_ptr> __u)
2835 : __ptr_(__u->release(), _VSTD::forward<deleter_type>(__u->get_deleter())) {}
2837 _LIBCPP_INLINE_VISIBILITY unique_ptr& operator=(__rv<unique_ptr> __u)
2839 reset(__u->release());
2840 __ptr_.second() = _VSTD::forward<deleter_type>(__u->get_deleter());
2844 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2845 _LIBCPP_INLINE_VISIBILITY ~unique_ptr() {reset();}
2847 _LIBCPP_INLINE_VISIBILITY unique_ptr& operator=(nullptr_t) _NOEXCEPT
2853 _LIBCPP_INLINE_VISIBILITY typename add_lvalue_reference<_Tp>::type operator[](size_t __i) const
2854 {return __ptr_.first()[__i];}
2855 _LIBCPP_INLINE_VISIBILITY pointer get() const _NOEXCEPT {return __ptr_.first();}
2856 _LIBCPP_INLINE_VISIBILITY _Dp_reference get_deleter() _NOEXCEPT
2857 {return __ptr_.second();}
2858 _LIBCPP_INLINE_VISIBILITY _Dp_const_reference get_deleter() const _NOEXCEPT
2859 {return __ptr_.second();}
2860 _LIBCPP_INLINE_VISIBILITY
2861 _LIBCPP_EXPLICIT operator bool() const _NOEXCEPT
2862 {return __ptr_.first() != nullptr;}
2864 _LIBCPP_INLINE_VISIBILITY pointer release() _NOEXCEPT
2866 pointer __t = __ptr_.first();
2867 __ptr_.first() = pointer();
2871 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2872 template <class _Pp,
2873 class = typename enable_if<__same_or_less_cv_qualified<_Pp, pointer>::value>::type
2875 _LIBCPP_INLINE_VISIBILITY void reset(_Pp __p) _NOEXCEPT
2877 pointer __tmp = __ptr_.first();
2878 __ptr_.first() = __p;
2880 __ptr_.second()(__tmp);
2882 _LIBCPP_INLINE_VISIBILITY void reset(nullptr_t) _NOEXCEPT
2884 pointer __tmp = __ptr_.first();
2885 __ptr_.first() = nullptr;
2887 __ptr_.second()(__tmp);
2889 _LIBCPP_INLINE_VISIBILITY void reset() _NOEXCEPT
2891 pointer __tmp = __ptr_.first();
2892 __ptr_.first() = nullptr;
2894 __ptr_.second()(__tmp);
2896 #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2897 _LIBCPP_INLINE_VISIBILITY void reset(pointer __p = pointer())
2899 pointer __tmp = __ptr_.first();
2900 __ptr_.first() = __p;
2902 __ptr_.second()(__tmp);
2904 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2906 _LIBCPP_INLINE_VISIBILITY void swap(unique_ptr& __u) {__ptr_.swap(__u.__ptr_);}
2909 #ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES
2910 template <class _Up>
2911 explicit unique_ptr(_Up);
2912 template <class _Up>
2914 typename conditional<
2915 is_reference<deleter_type>::value,
2917 typename add_lvalue_reference<const deleter_type>::type>::type,
2920 is_convertible<_Up, pointer>::value,
2923 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
2926 template <class _Tp, class _Dp>
2927 inline _LIBCPP_INLINE_VISIBILITY
2929 swap(unique_ptr<_Tp, _Dp>& __x, unique_ptr<_Tp, _Dp>& __y) _NOEXCEPT {__x.swap(__y);}
2931 template <class _T1, class _D1, class _T2, class _D2>
2932 inline _LIBCPP_INLINE_VISIBILITY
2934 operator==(const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return __x.get() == __y.get();}
2936 template <class _T1, class _D1, class _T2, class _D2>
2937 inline _LIBCPP_INLINE_VISIBILITY
2939 operator!=(const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return !(__x == __y);}
2941 template <class _T1, class _D1, class _T2, class _D2>
2942 inline _LIBCPP_INLINE_VISIBILITY
2944 operator< (const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y)
2946 typedef typename unique_ptr<_T1, _D1>::pointer _P1;
2947 typedef typename unique_ptr<_T2, _D2>::pointer _P2;
2948 typedef typename common_type<_P1, _P2>::type _V;
2949 return less<_V>()(__x.get(), __y.get());
2952 template <class _T1, class _D1, class _T2, class _D2>
2953 inline _LIBCPP_INLINE_VISIBILITY
2955 operator> (const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return __y < __x;}
2957 template <class _T1, class _D1, class _T2, class _D2>
2958 inline _LIBCPP_INLINE_VISIBILITY
2960 operator<=(const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return !(__y < __x);}
2962 template <class _T1, class _D1, class _T2, class _D2>
2963 inline _LIBCPP_INLINE_VISIBILITY
2965 operator>=(const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return !(__x < __y);}
2967 template <class _T1, class _D1>
2968 inline _LIBCPP_INLINE_VISIBILITY
2970 operator==(const unique_ptr<_T1, _D1>& __x, nullptr_t) _NOEXCEPT
2975 template <class _T1, class _D1>
2976 inline _LIBCPP_INLINE_VISIBILITY
2978 operator==(nullptr_t, const unique_ptr<_T1, _D1>& __x) _NOEXCEPT
2983 template <class _T1, class _D1>
2984 inline _LIBCPP_INLINE_VISIBILITY
2986 operator!=(const unique_ptr<_T1, _D1>& __x, nullptr_t) _NOEXCEPT
2988 return static_cast<bool>(__x);
2991 template <class _T1, class _D1>
2992 inline _LIBCPP_INLINE_VISIBILITY
2994 operator!=(nullptr_t, const unique_ptr<_T1, _D1>& __x) _NOEXCEPT
2996 return static_cast<bool>(__x);
2999 template <class _T1, class _D1>
3000 inline _LIBCPP_INLINE_VISIBILITY
3002 operator<(const unique_ptr<_T1, _D1>& __x, nullptr_t)
3004 typedef typename unique_ptr<_T1, _D1>::pointer _P1;
3005 return less<_P1>()(__x.get(), nullptr);
3008 template <class _T1, class _D1>
3009 inline _LIBCPP_INLINE_VISIBILITY
3011 operator<(nullptr_t, const unique_ptr<_T1, _D1>& __x)
3013 typedef typename unique_ptr<_T1, _D1>::pointer _P1;
3014 return less<_P1>()(nullptr, __x.get());
3017 template <class _T1, class _D1>
3018 inline _LIBCPP_INLINE_VISIBILITY
3020 operator>(const unique_ptr<_T1, _D1>& __x, nullptr_t)
3022 return nullptr < __x;
3025 template <class _T1, class _D1>
3026 inline _LIBCPP_INLINE_VISIBILITY
3028 operator>(nullptr_t, const unique_ptr<_T1, _D1>& __x)
3030 return __x < nullptr;
3033 template <class _T1, class _D1>
3034 inline _LIBCPP_INLINE_VISIBILITY
3036 operator<=(const unique_ptr<_T1, _D1>& __x, nullptr_t)
3038 return !(nullptr < __x);
3041 template <class _T1, class _D1>
3042 inline _LIBCPP_INLINE_VISIBILITY
3044 operator<=(nullptr_t, const unique_ptr<_T1, _D1>& __x)
3046 return !(__x < nullptr);
3049 template <class _T1, class _D1>
3050 inline _LIBCPP_INLINE_VISIBILITY
3052 operator>=(const unique_ptr<_T1, _D1>& __x, nullptr_t)
3054 return !(__x < nullptr);
3057 template <class _T1, class _D1>
3058 inline _LIBCPP_INLINE_VISIBILITY
3060 operator>=(nullptr_t, const unique_ptr<_T1, _D1>& __x)
3062 return !(nullptr < __x);
3065 #ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES
3067 template <class _Tp, class _Dp>
3068 inline _LIBCPP_INLINE_VISIBILITY
3069 unique_ptr<_Tp, _Dp>
3070 move(unique_ptr<_Tp, _Dp>& __t)
3072 return unique_ptr<_Tp, _Dp>(__rv<unique_ptr<_Tp, _Dp> >(__t));
3077 template <class _Tp> struct hash;
3079 // We use murmur2 when size_t is 32 bits, and cityhash64 when size_t
3080 // is 64 bits. This is because cityhash64 uses 64bit x 64bit
3081 // multiplication, which can be very slow on 32-bit systems.
3082 template <class _Size, size_t = sizeof(_Size)*__CHAR_BIT__>
3083 struct __murmur2_or_cityhash;
3085 template <class _Size>
3086 struct __murmur2_or_cityhash<_Size, 32>
3088 _Size operator()(const void* __key, _Size __len);
3092 template <class _Size>
3094 __murmur2_or_cityhash<_Size, 32>::operator()(const void* __key, _Size __len)
3096 const _Size __m = 0x5bd1e995;
3097 const _Size __r = 24;
3099 const unsigned char* __data = static_cast<const unsigned char*>(__key);
3100 for (; __len >= 4; __data += 4, __len -= 4)
3102 _Size __k = *(const _Size*)__data;
3112 __h ^= __data[2] << 16;
3114 __h ^= __data[1] << 8;
3125 template <class _Size>
3126 struct __murmur2_or_cityhash<_Size, 64>
3128 _Size operator()(const void* __key, _Size __len);
3131 // Some primes between 2^63 and 2^64.
3132 static const _Size __k0 = 0xc3a5c85c97cb3127ULL;
3133 static const _Size __k1 = 0xb492b66fbe98f273ULL;
3134 static const _Size __k2 = 0x9ae16a3b2f90404fULL;
3135 static const _Size __k3 = 0xc949d7c7509e6557ULL;
3137 static _Size __rotate(_Size __val, int __shift) {
3138 return __shift == 0 ? __val : ((__val >> __shift) | (__val << (64 - __shift)));
3141 static _Size __rotate_by_at_least_1(_Size __val, int __shift) {
3142 return (__val >> __shift) | (__val << (64 - __shift));
3145 static _Size __shift_mix(_Size __val) {
3146 return __val ^ (__val >> 47);
3149 static _Size __hash_len_16(_Size __u, _Size __v) {
3150 const _Size __mul = 0x9ddfea08eb382d69ULL;
3151 _Size __a = (__u ^ __v) * __mul;
3153 _Size __b = (__v ^ __a) * __mul;
3159 static _Size __hash_len_0_to_16(const char* __s, _Size __len) {
3161 const _Size __a = *(const _Size*)__s;
3162 const _Size __b = *(const _Size*)(__s + __len - 8);
3163 return __hash_len_16(__a, __rotate_by_at_least_1(__b + __len, __len)) ^ __b;
3166 const uint32_t __a = *(const uint32_t*)(__s);
3167 const uint32_t __b = *(const uint32_t*)(__s + __len - 4);
3168 return __hash_len_16(__len + (__a << 3), __b);
3171 const unsigned char __a = __s[0];
3172 const unsigned char __b = __s[__len >> 1];
3173 const unsigned char __c = __s[__len - 1];
3174 const uint32_t __y = static_cast<uint32_t>(__a) +
3175 (static_cast<uint32_t>(__b) << 8);
3176 const uint32_t __z = __len + (static_cast<uint32_t>(__c) << 2);
3177 return __shift_mix(__y * __k2 ^ __z * __k3) * __k2;
3182 static _Size __hash_len_17_to_32(const char *__s, _Size __len) {
3183 const _Size __a = *(const _Size*)(__s) * __k1;
3184 const _Size __b = *(const _Size*)(__s + 8);
3185 const _Size __c = *(const _Size*)(__s + __len - 8) * __k2;
3186 const _Size __d = *(const _Size*)(__s + __len - 16) * __k0;
3187 return __hash_len_16(__rotate(__a - __b, 43) + __rotate(__c, 30) + __d,
3188 __a + __rotate(__b ^ __k3, 20) - __c + __len);
3191 // Return a 16-byte hash for 48 bytes. Quick and dirty.
3192 // Callers do best to use "random-looking" values for a and b.
3193 static pair<_Size, _Size> __weak_hash_len_32_with_seeds(
3194 _Size __w, _Size __x, _Size __y, _Size __z, _Size __a, _Size __b) {
3196 __b = __rotate(__b + __a + __z, 21);
3197 const _Size __c = __a;
3200 __b += __rotate(__a, 44);
3201 return pair<_Size, _Size>(__a + __z, __b + __c);
3204 // Return a 16-byte hash for s[0] ... s[31], a, and b. Quick and dirty.
3205 static pair<_Size, _Size> __weak_hash_len_32_with_seeds(
3206 const char* __s, _Size __a, _Size __b) {
3207 return __weak_hash_len_32_with_seeds(*(const _Size*)(__s),
3208 *(const _Size*)(__s + 8),
3209 *(const _Size*)(__s + 16),
3210 *(const _Size*)(__s + 24),
3215 // Return an 8-byte hash for 33 to 64 bytes.
3216 static _Size __hash_len_33_to_64(const char *__s, size_t __len) {
3217 _Size __z = *(const _Size*)(__s + 24);
3218 _Size __a = *(const _Size*)(__s) +
3219 (__len + *(const _Size*)(__s + __len - 16)) * __k0;
3220 _Size __b = __rotate(__a + __z, 52);
3221 _Size __c = __rotate(__a, 37);
3222 __a += *(const _Size*)(__s + 8);
3223 __c += __rotate(__a, 7);
3224 __a += *(const _Size*)(__s + 16);
3225 _Size __vf = __a + __z;
3226 _Size __vs = __b + __rotate(__a, 31) + __c;
3227 __a = *(const _Size*)(__s + 16) + *(const _Size*)(__s + __len - 32);
3228 __z += *(const _Size*)(__s + __len - 8);
3229 __b = __rotate(__a + __z, 52);
3230 __c = __rotate(__a, 37);
3231 __a += *(const _Size*)(__s + __len - 24);
3232 __c += __rotate(__a, 7);
3233 __a += *(const _Size*)(__s + __len - 16);
3234 _Size __wf = __a + __z;
3235 _Size __ws = __b + __rotate(__a, 31) + __c;
3236 _Size __r = __shift_mix((__vf + __ws) * __k2 + (__wf + __vs) * __k0);
3237 return __shift_mix(__r * __k0 + __vs) * __k2;
3242 template <class _Size>
3244 __murmur2_or_cityhash<_Size, 64>::operator()(const void* __key, _Size __len)
3246 const char* __s = static_cast<const char*>(__key);
3249 return __hash_len_0_to_16(__s, __len);
3251 return __hash_len_17_to_32(__s, __len);
3253 } else if (__len <= 64) {
3254 return __hash_len_33_to_64(__s, __len);
3257 // For strings over 64 bytes we hash the end first, and then as we
3258 // loop we keep 56 bytes of state: v, w, x, y, and z.
3259 _Size __x = *(const _Size*)(__s + __len - 40);
3260 _Size __y = *(const _Size*)(__s + __len - 16) +
3261 *(const _Size*)(__s + __len - 56);
3262 _Size __z = __hash_len_16(*(const _Size*)(__s + __len - 48) + __len,
3263 *(const _Size*)(__s + __len - 24));
3264 pair<_Size, _Size> __v = __weak_hash_len_32_with_seeds(__s + __len - 64, __len, __z);
3265 pair<_Size, _Size> __w = __weak_hash_len_32_with_seeds(__s + __len - 32, __y + __k1, __x);
3266 __x = __x * __k1 + *(const _Size*)(__s);
3268 // Decrease len to the nearest multiple of 64, and operate on 64-byte chunks.
3269 __len = (__len - 1) & ~static_cast<_Size>(63);
3271 __x = __rotate(__x + __y + __v.first + *(const _Size*)(__s + 8), 37) * __k1;
3272 __y = __rotate(__y + __v.second + *(const _Size*)(__s + 48), 42) * __k1;
3274 __y += __v.first + *(const _Size*)(__s + 40);
3275 __z = __rotate(__z + __w.first, 33) * __k1;
3276 __v = __weak_hash_len_32_with_seeds(__s, __v.second * __k1, __x + __w.first);
3277 __w = __weak_hash_len_32_with_seeds(__s + 32, __z + __w.second,
3278 __y + *(const _Size*)(__s + 16));
3279 std::swap(__z, __x);
3282 } while (__len != 0);
3283 return __hash_len_16(
3284 __hash_len_16(__v.first, __w.first) + __shift_mix(__y) * __k1 + __z,
3285 __hash_len_16(__v.second, __w.second) + __x);
3288 template <class _Tp, size_t = sizeof(_Tp) / sizeof(size_t)>
3289 struct __scalar_hash;
3291 template <class _Tp>
3292 struct __scalar_hash<_Tp, 0>
3293 : public unary_function<_Tp, size_t>
3295 _LIBCPP_INLINE_VISIBILITY
3296 size_t operator()(_Tp __v) const _NOEXCEPT
3309 template <class _Tp>
3310 struct __scalar_hash<_Tp, 1>
3311 : public unary_function<_Tp, size_t>
3313 _LIBCPP_INLINE_VISIBILITY
3314 size_t operator()(_Tp __v) const _NOEXCEPT
3326 template <class _Tp>
3327 struct __scalar_hash<_Tp, 2>
3328 : public unary_function<_Tp, size_t>
3330 _LIBCPP_INLINE_VISIBILITY
3331 size_t operator()(_Tp __v) const _NOEXCEPT
3343 return __murmur2_or_cityhash<size_t>()(&__u, sizeof(__u));
3347 template <class _Tp>
3348 struct __scalar_hash<_Tp, 3>
3349 : public unary_function<_Tp, size_t>
3351 _LIBCPP_INLINE_VISIBILITY
3352 size_t operator()(_Tp __v) const _NOEXCEPT
3365 return __murmur2_or_cityhash<size_t>()(&__u, sizeof(__u));
3369 template <class _Tp>
3370 struct __scalar_hash<_Tp, 4>
3371 : public unary_function<_Tp, size_t>
3373 _LIBCPP_INLINE_VISIBILITY
3374 size_t operator()(_Tp __v) const _NOEXCEPT
3388 return __murmur2_or_cityhash<size_t>()(&__u, sizeof(__u));
3393 struct _LIBCPP_VISIBLE hash<_Tp*>
3394 : public unary_function<_Tp*, size_t>
3396 _LIBCPP_INLINE_VISIBILITY
3397 size_t operator()(_Tp* __v) const _NOEXCEPT
3405 return __murmur2_or_cityhash<size_t>()(&__u, sizeof(__u));
3409 template <class _Tp, class _Dp>
3410 struct _LIBCPP_VISIBLE hash<unique_ptr<_Tp, _Dp> >
3412 typedef unique_ptr<_Tp, _Dp> argument_type;
3413 typedef size_t result_type;
3414 _LIBCPP_INLINE_VISIBILITY
3415 result_type operator()(const argument_type& __ptr) const _NOEXCEPT
3417 typedef typename argument_type::pointer pointer;
3418 return hash<pointer>()(__ptr.get());
3427 template <class _Tp>
3428 _LIBCPP_INLINE_VISIBILITY void __process(_Tp* __p, false_type) _NOEXCEPT
3429 {for (size_t __i = 0; __i < size; ++__i, ++__p) __p->~_Tp();}
3431 template <class _Tp>
3432 _LIBCPP_INLINE_VISIBILITY void __process(_Tp*, true_type) _NOEXCEPT
3435 _LIBCPP_INLINE_VISIBILITY void __incr(false_type) _NOEXCEPT
3437 _LIBCPP_INLINE_VISIBILITY void __incr(true_type) _NOEXCEPT
3440 _LIBCPP_INLINE_VISIBILITY void __set(size_t __s, false_type) _NOEXCEPT
3442 _LIBCPP_INLINE_VISIBILITY void __set(size_t, true_type) _NOEXCEPT
3445 _LIBCPP_INLINE_VISIBILITY explicit __destruct_n(size_t __s) _NOEXCEPT
3448 template <class _Tp>
3449 _LIBCPP_INLINE_VISIBILITY void __incr(_Tp*) _NOEXCEPT
3450 {__incr(integral_constant<bool, is_trivially_destructible<_Tp>::value>());}
3452 template <class _Tp>
3453 _LIBCPP_INLINE_VISIBILITY void __set(size_t __s, _Tp*) _NOEXCEPT
3454 {__set(__s, integral_constant<bool, is_trivially_destructible<_Tp>::value>());}
3456 template <class _Tp>
3457 _LIBCPP_INLINE_VISIBILITY void operator()(_Tp* __p) _NOEXCEPT
3458 {__process(__p, integral_constant<bool, is_trivially_destructible<_Tp>::value>());}
3461 template <class _Alloc>
3462 class __allocator_destructor
3464 typedef allocator_traits<_Alloc> __alloc_traits;
3466 typedef typename __alloc_traits::pointer pointer;
3467 typedef typename __alloc_traits::size_type size_type;
3472 _LIBCPP_INLINE_VISIBILITY __allocator_destructor(_Alloc& __a, size_type __s)
3474 : __alloc_(__a), __s_(__s) {}
3475 _LIBCPP_INLINE_VISIBILITY
3476 void operator()(pointer __p) _NOEXCEPT
3477 {__alloc_traits::deallocate(__alloc_, __p, __s_);}
3480 template <class _InputIterator, class _ForwardIterator>
3482 uninitialized_copy(_InputIterator __f, _InputIterator __l, _ForwardIterator __r)
3484 typedef typename iterator_traits<_ForwardIterator>::value_type value_type;
3485 #ifndef _LIBCPP_NO_EXCEPTIONS
3486 _ForwardIterator __s = __r;
3490 for (; __f != __l; ++__f, ++__r)
3491 ::new(&*__r) value_type(*__f);
3492 #ifndef _LIBCPP_NO_EXCEPTIONS
3496 for (; __s != __r; ++__s)
3504 template <class _InputIterator, class _Size, class _ForwardIterator>
3506 uninitialized_copy_n(_InputIterator __f, _Size __n, _ForwardIterator __r)
3508 typedef typename iterator_traits<_ForwardIterator>::value_type value_type;
3509 #ifndef _LIBCPP_NO_EXCEPTIONS
3510 _ForwardIterator __s = __r;
3514 for (; __n > 0; ++__f, ++__r, --__n)
3515 ::new(&*__r) value_type(*__f);
3516 #ifndef _LIBCPP_NO_EXCEPTIONS
3520 for (; __s != __r; ++__s)
3528 template <class _ForwardIterator, class _Tp>
3530 uninitialized_fill(_ForwardIterator __f, _ForwardIterator __l, const _Tp& __x)
3532 typedef typename iterator_traits<_ForwardIterator>::value_type value_type;
3533 #ifndef _LIBCPP_NO_EXCEPTIONS
3534 _ForwardIterator __s = __f;
3538 for (; __f != __l; ++__f)
3539 ::new(&*__f) value_type(__x);
3540 #ifndef _LIBCPP_NO_EXCEPTIONS
3544 for (; __s != __f; ++__s)
3551 template <class _ForwardIterator, class _Size, class _Tp>
3553 uninitialized_fill_n(_ForwardIterator __f, _Size __n, const _Tp& __x)
3555 typedef typename iterator_traits<_ForwardIterator>::value_type value_type;
3556 #ifndef _LIBCPP_NO_EXCEPTIONS
3557 _ForwardIterator __s = __f;
3561 for (; __n > 0; ++__f, --__n)
3562 ::new(&*__f) value_type(__x);
3563 #ifndef _LIBCPP_NO_EXCEPTIONS
3567 for (; __s != __f; ++__s)
3575 class _LIBCPP_EXCEPTION_ABI bad_weak_ptr
3576 : public std::exception
3579 virtual ~bad_weak_ptr() _NOEXCEPT;
3580 virtual const char* what() const _NOEXCEPT;
3583 template<class _Tp> class _LIBCPP_VISIBLE weak_ptr;
3585 class __shared_count
3587 __shared_count(const __shared_count&);
3588 __shared_count& operator=(const __shared_count&);
3591 long __shared_owners_;
3592 virtual ~__shared_count();
3594 virtual void __on_zero_shared() _NOEXCEPT = 0;
3597 _LIBCPP_INLINE_VISIBILITY
3598 explicit __shared_count(long __refs = 0) _NOEXCEPT
3599 : __shared_owners_(__refs) {}
3601 void __add_shared() _NOEXCEPT;
3602 bool __release_shared() _NOEXCEPT;
3603 _LIBCPP_INLINE_VISIBILITY
3604 long use_count() const _NOEXCEPT {return __shared_owners_ + 1;}
3607 class __shared_weak_count
3608 : private __shared_count
3610 long __shared_weak_owners_;
3613 _LIBCPP_INLINE_VISIBILITY
3614 explicit __shared_weak_count(long __refs = 0) _NOEXCEPT
3615 : __shared_count(__refs),
3616 __shared_weak_owners_(__refs) {}
3618 virtual ~__shared_weak_count();
3621 void __add_shared() _NOEXCEPT;
3622 void __add_weak() _NOEXCEPT;
3623 void __release_shared() _NOEXCEPT;
3624 void __release_weak() _NOEXCEPT;
3625 _LIBCPP_INLINE_VISIBILITY
3626 long use_count() const _NOEXCEPT {return __shared_count::use_count();}
3627 __shared_weak_count* lock() _NOEXCEPT;
3629 // purposefully not protected with #ifndef _LIBCPP_NO_RTTI because doing so
3630 // breaks ABI for those clients who need to compile their projects with
3631 // -fno-rtti and yet link against a libc++.dylib compiled without -fno-rtti.
3632 virtual const void* __get_deleter(const type_info&) const _NOEXCEPT;
3634 virtual void __on_zero_shared_weak() _NOEXCEPT = 0;
3637 template <class _Tp, class _Dp, class _Alloc>
3638 class __shared_ptr_pointer
3639 : public __shared_weak_count
3641 __compressed_pair<__compressed_pair<_Tp, _Dp>, _Alloc> __data_;
3643 _LIBCPP_INLINE_VISIBILITY
3644 __shared_ptr_pointer(_Tp __p, _Dp __d, _Alloc __a)
3645 : __data_(__compressed_pair<_Tp, _Dp>(__p, _VSTD::move(__d)), _VSTD::move(__a)) {}
3647 #ifndef _LIBCPP_NO_RTTI
3648 virtual const void* __get_deleter(const type_info&) const _NOEXCEPT;
3652 virtual void __on_zero_shared() _NOEXCEPT;
3653 virtual void __on_zero_shared_weak() _NOEXCEPT;
3656 #ifndef _LIBCPP_NO_RTTI
3658 template <class _Tp, class _Dp, class _Alloc>
3660 __shared_ptr_pointer<_Tp, _Dp, _Alloc>::__get_deleter(const type_info& __t) const _NOEXCEPT
3662 return __t == typeid(_Dp) ? &__data_.first().second() : 0;
3665 #endif // _LIBCPP_NO_RTTI
3667 template <class _Tp, class _Dp, class _Alloc>
3669 __shared_ptr_pointer<_Tp, _Dp, _Alloc>::__on_zero_shared() _NOEXCEPT
3671 __data_.first().second()(__data_.first().first());
3672 __data_.first().second().~_Dp();
3675 template <class _Tp, class _Dp, class _Alloc>
3677 __shared_ptr_pointer<_Tp, _Dp, _Alloc>::__on_zero_shared_weak() _NOEXCEPT
3679 typename _Alloc::template rebind<__shared_ptr_pointer>::other __a(__data_.second());
3680 __data_.second().~_Alloc();
3681 __a.deallocate(this, 1);
3684 template <class _Tp, class _Alloc>
3685 class __shared_ptr_emplace
3686 : public __shared_weak_count
3688 __compressed_pair<_Alloc, _Tp> __data_;
3690 #ifndef _LIBCPP_HAS_NO_VARIADICS
3692 _LIBCPP_INLINE_VISIBILITY
3693 __shared_ptr_emplace(_Alloc __a)
3694 : __data_(_VSTD::move(__a)) {}
3696 template <class ..._Args>
3697 _LIBCPP_INLINE_VISIBILITY
3698 __shared_ptr_emplace(_Alloc __a, _Args&& ...__args)
3699 : __data_(piecewise_construct, _VSTD::forward_as_tuple(__a),
3700 _VSTD::forward_as_tuple(_VSTD::forward<_Args>(__args)...)) {}
3702 #else // _LIBCPP_HAS_NO_VARIADICS
3704 _LIBCPP_INLINE_VISIBILITY
3705 __shared_ptr_emplace(_Alloc __a)
3708 template <class _A0>
3709 _LIBCPP_INLINE_VISIBILITY
3710 __shared_ptr_emplace(_Alloc __a, _A0& __a0)
3711 : __data_(__a, _Tp(__a0)) {}
3713 template <class _A0, class _A1>
3714 _LIBCPP_INLINE_VISIBILITY
3715 __shared_ptr_emplace(_Alloc __a, _A0& __a0, _A1& __a1)
3716 : __data_(__a, _Tp(__a0, __a1)) {}
3718 template <class _A0, class _A1, class _A2>
3719 _LIBCPP_INLINE_VISIBILITY
3720 __shared_ptr_emplace(_Alloc __a, _A0& __a0, _A1& __a1, _A2& __a2)
3721 : __data_(__a, _Tp(__a0, __a1, __a2)) {}
3723 #endif // _LIBCPP_HAS_NO_VARIADICS
3726 virtual void __on_zero_shared() _NOEXCEPT;
3727 virtual void __on_zero_shared_weak() _NOEXCEPT;
3729 _LIBCPP_INLINE_VISIBILITY
3730 _Tp* get() _NOEXCEPT {return &__data_.second();}
3733 template <class _Tp, class _Alloc>
3735 __shared_ptr_emplace<_Tp, _Alloc>::__on_zero_shared() _NOEXCEPT
3737 __data_.second().~_Tp();
3740 template <class _Tp, class _Alloc>
3742 __shared_ptr_emplace<_Tp, _Alloc>::__on_zero_shared_weak() _NOEXCEPT
3744 typename _Alloc::template rebind<__shared_ptr_emplace>::other __a(__data_.first());
3745 __data_.first().~_Alloc();
3746 __a.deallocate(this, 1);
3749 template<class _Tp> class _LIBCPP_VISIBLE enable_shared_from_this;
3752 class _LIBCPP_VISIBLE shared_ptr
3755 typedef _Tp element_type;
3757 element_type* __ptr_;
3758 __shared_weak_count* __cntrl_;
3760 struct __nat {int __for_bool_;};
3762 _LIBCPP_CONSTEXPR shared_ptr() _NOEXCEPT;
3763 _LIBCPP_CONSTEXPR shared_ptr(nullptr_t) _NOEXCEPT;
3765 class = typename enable_if
3767 is_convertible<_Yp*, element_type*>::value
3770 explicit shared_ptr(_Yp* __p);
3771 template<class _Yp, class _Dp,
3772 class = typename enable_if
3774 is_convertible<_Yp*, element_type*>::value
3777 shared_ptr(_Yp* __p, _Dp __d);
3778 template<class _Yp, class _Dp, class _Alloc,
3779 class = typename enable_if
3781 is_convertible<_Yp*, element_type*>::value
3784 shared_ptr(_Yp* __p, _Dp __d, _Alloc __a);
3785 template <class _Dp> shared_ptr(nullptr_t __p, _Dp __d);
3786 template <class _Dp, class _Alloc> shared_ptr(nullptr_t __p, _Dp __d, _Alloc __a);
3787 template<class _Yp> shared_ptr(const shared_ptr<_Yp>& __r, element_type* __p) _NOEXCEPT;
3788 shared_ptr(const shared_ptr& __r) _NOEXCEPT;
3790 shared_ptr(const shared_ptr<_Yp>& __r,
3791 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat>::type = __nat())
3793 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
3794 shared_ptr(shared_ptr&& __r) _NOEXCEPT;
3795 template<class _Yp> shared_ptr(shared_ptr<_Yp>&& __r,
3796 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat>::type = __nat())
3798 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
3799 template<class _Yp> explicit shared_ptr(const weak_ptr<_Yp>& __r,
3800 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat>::type= __nat());
3801 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
3803 class = typename enable_if
3805 is_convertible<_Yp*, element_type*>::value
3808 shared_ptr(auto_ptr<_Yp>&& __r);
3811 class = typename enable_if
3813 is_convertible<_Yp*, element_type*>::value
3816 shared_ptr(auto_ptr<_Yp> __r);
3818 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
3819 template <class _Yp, class _Dp,
3820 class = typename enable_if
3822 !is_array<_Yp>::value &&
3823 is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, element_type*>::value
3826 shared_ptr(unique_ptr<_Yp, _Dp>&&,
3827 typename enable_if<!is_lvalue_reference<_Dp>::value, __nat>::type = __nat());
3828 template <class _Yp, class _Dp,
3829 class = typename enable_if
3831 !is_array<_Yp>::value &&
3832 is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, element_type*>::value
3835 shared_ptr(unique_ptr<_Yp, _Dp>&&,
3836 typename enable_if<is_lvalue_reference<_Dp>::value, __nat>::type = __nat());
3837 #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
3838 template <class _Yp, class _Dp,
3839 class = typename enable_if
3841 !is_array<_Yp>::value &&
3842 is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, element_type*>::value
3844 > shared_ptr(unique_ptr<_Yp, _Dp>,
3845 typename enable_if<!is_lvalue_reference<_Dp>::value, __nat>::type = __nat());
3846 template <class _Yp, class _Dp,
3847 class = typename enable_if
3849 !is_array<_Yp>::value &&
3850 is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, element_type*>::value
3853 shared_ptr(unique_ptr<_Yp, _Dp>,
3854 typename enable_if<is_lvalue_reference<_Dp>::value, __nat>::type = __nat());
3855 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
3859 shared_ptr& operator=(const shared_ptr& __r) _NOEXCEPT;
3863 is_convertible<_Yp*, element_type*>::value,
3866 operator=(const shared_ptr<_Yp>& __r) _NOEXCEPT;
3867 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
3868 shared_ptr& operator=(shared_ptr&& __r) _NOEXCEPT;
3872 is_convertible<_Yp*, element_type*>::value,
3875 operator=(shared_ptr<_Yp>&& __r);
3879 !is_array<_Yp>::value &&
3880 is_convertible<_Yp*, element_type*>::value,
3883 operator=(auto_ptr<_Yp>&& __r);
3884 #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
3888 !is_array<_Yp>::value &&
3889 is_convertible<_Yp*, element_type*>::value,
3892 operator=(auto_ptr<_Yp> __r);
3894 template <class _Yp, class _Dp>
3897 !is_array<_Yp>::value &&
3898 is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, element_type*>::value,
3901 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
3902 operator=(unique_ptr<_Yp, _Dp>&& __r);
3903 #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
3904 operator=(unique_ptr<_Yp, _Dp> __r);
3907 void swap(shared_ptr& __r) _NOEXCEPT;
3908 void reset() _NOEXCEPT;
3912 is_convertible<_Yp*, element_type*>::value,
3916 template<class _Yp, class _Dp>
3919 is_convertible<_Yp*, element_type*>::value,
3922 reset(_Yp* __p, _Dp __d);
3923 template<class _Yp, class _Dp, class _Alloc>
3926 is_convertible<_Yp*, element_type*>::value,
3929 reset(_Yp* __p, _Dp __d, _Alloc __a);
3931 _LIBCPP_INLINE_VISIBILITY
3932 element_type* get() const _NOEXCEPT {return __ptr_;}
3933 _LIBCPP_INLINE_VISIBILITY
3934 typename add_lvalue_reference<element_type>::type operator*() const _NOEXCEPT
3936 _LIBCPP_INLINE_VISIBILITY
3937 element_type* operator->() const _NOEXCEPT {return __ptr_;}
3938 _LIBCPP_INLINE_VISIBILITY
3939 long use_count() const _NOEXCEPT {return __cntrl_ ? __cntrl_->use_count() : 0;}
3940 _LIBCPP_INLINE_VISIBILITY
3941 bool unique() const _NOEXCEPT {return use_count() == 1;}
3942 _LIBCPP_INLINE_VISIBILITY
3943 _LIBCPP_EXPLICIT operator bool() const _NOEXCEPT {return get() != 0;}
3944 template <class _Up>
3945 _LIBCPP_INLINE_VISIBILITY
3946 bool owner_before(shared_ptr<_Up> const& __p) const
3947 {return __cntrl_ < __p.__cntrl_;}
3948 template <class _Up>
3949 _LIBCPP_INLINE_VISIBILITY
3950 bool owner_before(weak_ptr<_Up> const& __p) const
3951 {return __cntrl_ < __p.__cntrl_;}
3952 _LIBCPP_INLINE_VISIBILITY
3954 __owner_equivalent(const shared_ptr& __p) const
3955 {return __cntrl_ == __p.__cntrl_;}
3957 #ifndef _LIBCPP_NO_RTTI
3958 template <class _Dp>
3959 _LIBCPP_INLINE_VISIBILITY
3960 _Dp* __get_deleter() const _NOEXCEPT
3961 {return (_Dp*)(__cntrl_ ? __cntrl_->__get_deleter(typeid(_Dp)) : 0);}
3962 #endif // _LIBCPP_NO_RTTI
3964 #ifndef _LIBCPP_HAS_NO_VARIADICS
3966 template<class ..._Args>
3969 make_shared(_Args&& ...__args);
3971 template<class _Alloc, class ..._Args>
3974 allocate_shared(const _Alloc& __a, _Args&& ...__args);
3976 #else // _LIBCPP_HAS_NO_VARIADICS
3978 static shared_ptr<_Tp> make_shared();
3981 static shared_ptr<_Tp> make_shared(_A0&);
3983 template<class _A0, class _A1>
3984 static shared_ptr<_Tp> make_shared(_A0&, _A1&);
3986 template<class _A0, class _A1, class _A2>
3987 static shared_ptr<_Tp> make_shared(_A0&, _A1&, _A2&);
3989 template<class _Alloc>
3990 static shared_ptr<_Tp>
3991 allocate_shared(const _Alloc& __a);
3993 template<class _Alloc, class _A0>
3994 static shared_ptr<_Tp>
3995 allocate_shared(const _Alloc& __a, _A0& __a0);
3997 template<class _Alloc, class _A0, class _A1>
3998 static shared_ptr<_Tp>
3999 allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1);
4001 template<class _Alloc, class _A0, class _A1, class _A2>
4002 static shared_ptr<_Tp>
4003 allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1, _A2& __a2);
4005 #endif // _LIBCPP_HAS_NO_VARIADICS
4009 template <class _Yp>
4010 _LIBCPP_INLINE_VISIBILITY
4012 __enable_weak_this(const enable_shared_from_this<_Yp>* __e) _NOEXCEPT
4015 __e->__weak_this_ = *this;
4018 _LIBCPP_INLINE_VISIBILITY
4019 void __enable_weak_this(const void*) _NOEXCEPT {}
4021 template <class _Up> friend class _LIBCPP_VISIBLE shared_ptr;
4022 template <class _Up> friend class _LIBCPP_VISIBLE weak_ptr;
4026 inline _LIBCPP_INLINE_VISIBILITY
4028 shared_ptr<_Tp>::shared_ptr() _NOEXCEPT
4035 inline _LIBCPP_INLINE_VISIBILITY
4037 shared_ptr<_Tp>::shared_ptr(nullptr_t) _NOEXCEPT
4044 template<class _Yp, class>
4045 shared_ptr<_Tp>::shared_ptr(_Yp* __p)
4048 unique_ptr<_Yp> __hold(__p);
4049 typedef __shared_ptr_pointer<_Yp*, default_delete<_Yp>, allocator<_Yp> > _CntrlBlk;
4050 __cntrl_ = new _CntrlBlk(__p, default_delete<_Yp>(), allocator<_Yp>());
4052 __enable_weak_this(__p);
4056 template<class _Yp, class _Dp, class>
4057 shared_ptr<_Tp>::shared_ptr(_Yp* __p, _Dp __d)
4060 #ifndef _LIBCPP_NO_EXCEPTIONS
4063 #endif // _LIBCPP_NO_EXCEPTIONS
4064 typedef __shared_ptr_pointer<_Yp*, _Dp, allocator<_Yp> > _CntrlBlk;
4065 __cntrl_ = new _CntrlBlk(__p, __d, allocator<_Yp>());
4066 __enable_weak_this(__p);
4067 #ifndef _LIBCPP_NO_EXCEPTIONS
4074 #endif // _LIBCPP_NO_EXCEPTIONS
4079 shared_ptr<_Tp>::shared_ptr(nullptr_t __p, _Dp __d)
4082 #ifndef _LIBCPP_NO_EXCEPTIONS
4085 #endif // _LIBCPP_NO_EXCEPTIONS
4086 typedef __shared_ptr_pointer<nullptr_t, _Dp, allocator<_Tp> > _CntrlBlk;
4087 __cntrl_ = new _CntrlBlk(__p, __d, allocator<_Tp>());
4088 #ifndef _LIBCPP_NO_EXCEPTIONS
4095 #endif // _LIBCPP_NO_EXCEPTIONS
4099 template<class _Yp, class _Dp, class _Alloc, class>
4100 shared_ptr<_Tp>::shared_ptr(_Yp* __p, _Dp __d, _Alloc __a)
4103 #ifndef _LIBCPP_NO_EXCEPTIONS
4106 #endif // _LIBCPP_NO_EXCEPTIONS
4107 typedef __shared_ptr_pointer<_Yp*, _Dp, _Alloc> _CntrlBlk;
4108 typedef typename _Alloc::template rebind<_CntrlBlk>::other _A2;
4109 typedef __allocator_destructor<_A2> _D2;
4111 unique_ptr<_CntrlBlk, _D2> __hold2(__a2.allocate(1), _D2(__a2, 1));
4112 ::new(__hold2.get()) _CntrlBlk(__p, __d, __a);
4113 __cntrl_ = __hold2.release();
4114 __enable_weak_this(__p);
4115 #ifndef _LIBCPP_NO_EXCEPTIONS
4122 #endif // _LIBCPP_NO_EXCEPTIONS
4126 template<class _Dp, class _Alloc>
4127 shared_ptr<_Tp>::shared_ptr(nullptr_t __p, _Dp __d, _Alloc __a)
4130 #ifndef _LIBCPP_NO_EXCEPTIONS
4133 #endif // _LIBCPP_NO_EXCEPTIONS
4134 typedef __shared_ptr_pointer<nullptr_t, _Dp, _Alloc> _CntrlBlk;
4135 typedef typename _Alloc::template rebind<_CntrlBlk>::other _A2;
4136 typedef __allocator_destructor<_A2> _D2;
4138 unique_ptr<_CntrlBlk, _D2> __hold2(__a2.allocate(1), _D2(__a2, 1));
4139 ::new(__hold2.get()) _CntrlBlk(__p, __d, __a);
4140 __cntrl_ = __hold2.release();
4141 #ifndef _LIBCPP_NO_EXCEPTIONS
4148 #endif // _LIBCPP_NO_EXCEPTIONS
4153 inline _LIBCPP_INLINE_VISIBILITY
4154 shared_ptr<_Tp>::shared_ptr(const shared_ptr<_Yp>& __r, element_type *__p) _NOEXCEPT
4156 __cntrl_(__r.__cntrl_)
4159 __cntrl_->__add_shared();
4163 inline _LIBCPP_INLINE_VISIBILITY
4164 shared_ptr<_Tp>::shared_ptr(const shared_ptr& __r) _NOEXCEPT
4165 : __ptr_(__r.__ptr_),
4166 __cntrl_(__r.__cntrl_)
4169 __cntrl_->__add_shared();
4174 inline _LIBCPP_INLINE_VISIBILITY
4175 shared_ptr<_Tp>::shared_ptr(const shared_ptr<_Yp>& __r,
4176 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat>::type)
4178 : __ptr_(__r.__ptr_),
4179 __cntrl_(__r.__cntrl_)
4182 __cntrl_->__add_shared();
4185 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
4188 inline _LIBCPP_INLINE_VISIBILITY
4189 shared_ptr<_Tp>::shared_ptr(shared_ptr&& __r) _NOEXCEPT
4190 : __ptr_(__r.__ptr_),
4191 __cntrl_(__r.__cntrl_)
4199 inline _LIBCPP_INLINE_VISIBILITY
4200 shared_ptr<_Tp>::shared_ptr(shared_ptr<_Yp>&& __r,
4201 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat>::type)
4203 : __ptr_(__r.__ptr_),
4204 __cntrl_(__r.__cntrl_)
4210 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
4213 template<class _Yp, class>
4214 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
4215 shared_ptr<_Tp>::shared_ptr(auto_ptr<_Yp>&& __r)
4217 shared_ptr<_Tp>::shared_ptr(auto_ptr<_Yp> __r)
4221 typedef __shared_ptr_pointer<_Yp*, default_delete<_Yp>, allocator<_Yp> > _CntrlBlk;
4222 __cntrl_ = new _CntrlBlk(__r.get(), default_delete<_Yp>(), allocator<_Yp>());
4223 __enable_weak_this(__r.get());
4228 template <class _Yp, class _Dp, class>
4229 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
4230 shared_ptr<_Tp>::shared_ptr(unique_ptr<_Yp, _Dp>&& __r,
4232 shared_ptr<_Tp>::shared_ptr(unique_ptr<_Yp, _Dp> __r,
4234 typename enable_if<!is_lvalue_reference<_Dp>::value, __nat>::type)
4237 typedef __shared_ptr_pointer<_Yp*, _Dp, allocator<_Yp> > _CntrlBlk;
4238 __cntrl_ = new _CntrlBlk(__r.get(), __r.get_deleter(), allocator<_Yp>());
4239 __enable_weak_this(__r.get());
4244 template <class _Yp, class _Dp, class>
4245 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
4246 shared_ptr<_Tp>::shared_ptr(unique_ptr<_Yp, _Dp>&& __r,
4248 shared_ptr<_Tp>::shared_ptr(unique_ptr<_Yp, _Dp> __r,
4250 typename enable_if<is_lvalue_reference<_Dp>::value, __nat>::type)
4253 typedef __shared_ptr_pointer<_Yp*,
4254 reference_wrapper<typename remove_reference<_Dp>::type>,
4255 allocator<_Yp> > _CntrlBlk;
4256 __cntrl_ = new _CntrlBlk(__r.get(), ref(__r.get_deleter()), allocator<_Yp>());
4257 __enable_weak_this(__r.get());
4261 #ifndef _LIBCPP_HAS_NO_VARIADICS
4264 template<class ..._Args>
4266 shared_ptr<_Tp>::make_shared(_Args&& ...__args)
4268 typedef __shared_ptr_emplace<_Tp, allocator<_Tp> > _CntrlBlk;
4269 typedef allocator<_CntrlBlk> _A2;
4270 typedef __allocator_destructor<_A2> _D2;
4272 unique_ptr<_CntrlBlk, _D2> __hold2(__a2.allocate(1), _D2(__a2, 1));
4273 ::new(__hold2.get()) _CntrlBlk(__a2, _VSTD::forward<_Args>(__args)...);
4274 shared_ptr<_Tp> __r;
4275 __r.__ptr_ = __hold2.get()->get();
4276 __r.__cntrl_ = __hold2.release();
4277 __r.__enable_weak_this(__r.__ptr_);
4282 template<class _Alloc, class ..._Args>
4284 shared_ptr<_Tp>::allocate_shared(const _Alloc& __a, _Args&& ...__args)
4286 typedef __shared_ptr_emplace<_Tp, _Alloc> _CntrlBlk;
4287 typedef typename _Alloc::template rebind<_CntrlBlk>::other _A2;
4288 typedef __allocator_destructor<_A2> _D2;
4290 unique_ptr<_CntrlBlk, _D2> __hold2(__a2.allocate(1), _D2(__a2, 1));
4291 ::new(__hold2.get()) _CntrlBlk(__a, _VSTD::forward<_Args>(__args)...);
4292 shared_ptr<_Tp> __r;
4293 __r.__ptr_ = __hold2.get()->get();
4294 __r.__cntrl_ = __hold2.release();
4295 __r.__enable_weak_this(__r.__ptr_);
4299 #else // _LIBCPP_HAS_NO_VARIADICS
4303 shared_ptr<_Tp>::make_shared()
4305 typedef __shared_ptr_emplace<_Tp, allocator<_Tp> > _CntrlBlk;
4306 typedef allocator<_CntrlBlk> _Alloc2;
4307 typedef __allocator_destructor<_Alloc2> _D2;
4309 unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
4310 ::new(__hold2.get()) _CntrlBlk(__alloc2);
4311 shared_ptr<_Tp> __r;
4312 __r.__ptr_ = __hold2.get()->get();
4313 __r.__cntrl_ = __hold2.release();
4314 __r.__enable_weak_this(__r.__ptr_);
4321 shared_ptr<_Tp>::make_shared(_A0& __a0)
4323 typedef __shared_ptr_emplace<_Tp, allocator<_Tp> > _CntrlBlk;
4324 typedef allocator<_CntrlBlk> _Alloc2;
4325 typedef __allocator_destructor<_Alloc2> _D2;
4327 unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
4328 ::new(__hold2.get()) _CntrlBlk(__alloc2, __a0);
4329 shared_ptr<_Tp> __r;
4330 __r.__ptr_ = __hold2.get()->get();
4331 __r.__cntrl_ = __hold2.release();
4332 __r.__enable_weak_this(__r.__ptr_);
4337 template<class _A0, class _A1>
4339 shared_ptr<_Tp>::make_shared(_A0& __a0, _A1& __a1)
4341 typedef __shared_ptr_emplace<_Tp, allocator<_Tp> > _CntrlBlk;
4342 typedef allocator<_CntrlBlk> _Alloc2;
4343 typedef __allocator_destructor<_Alloc2> _D2;
4345 unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
4346 ::new(__hold2.get()) _CntrlBlk(__alloc2, __a0, __a1);
4347 shared_ptr<_Tp> __r;
4348 __r.__ptr_ = __hold2.get()->get();
4349 __r.__cntrl_ = __hold2.release();
4350 __r.__enable_weak_this(__r.__ptr_);
4355 template<class _A0, class _A1, class _A2>
4357 shared_ptr<_Tp>::make_shared(_A0& __a0, _A1& __a1, _A2& __a2)
4359 typedef __shared_ptr_emplace<_Tp, allocator<_Tp> > _CntrlBlk;
4360 typedef allocator<_CntrlBlk> _Alloc2;
4361 typedef __allocator_destructor<_Alloc2> _D2;
4363 unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
4364 ::new(__hold2.get()) _CntrlBlk(__alloc2, __a0, __a1, __a2);
4365 shared_ptr<_Tp> __r;
4366 __r.__ptr_ = __hold2.get()->get();
4367 __r.__cntrl_ = __hold2.release();
4368 __r.__enable_weak_this(__r.__ptr_);
4373 template<class _Alloc>
4375 shared_ptr<_Tp>::allocate_shared(const _Alloc& __a)
4377 typedef __shared_ptr_emplace<_Tp, _Alloc> _CntrlBlk;
4378 typedef typename _Alloc::template rebind<_CntrlBlk>::other _Alloc2;
4379 typedef __allocator_destructor<_Alloc2> _D2;
4380 _Alloc2 __alloc2(__a);
4381 unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
4382 ::new(__hold2.get()) _CntrlBlk(__a);
4383 shared_ptr<_Tp> __r;
4384 __r.__ptr_ = __hold2.get()->get();
4385 __r.__cntrl_ = __hold2.release();
4386 __r.__enable_weak_this(__r.__ptr_);
4391 template<class _Alloc, class _A0>
4393 shared_ptr<_Tp>::allocate_shared(const _Alloc& __a, _A0& __a0)
4395 typedef __shared_ptr_emplace<_Tp, _Alloc> _CntrlBlk;
4396 typedef typename _Alloc::template rebind<_CntrlBlk>::other _Alloc2;
4397 typedef __allocator_destructor<_Alloc2> _D2;
4398 _Alloc2 __alloc2(__a);
4399 unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
4400 ::new(__hold2.get()) _CntrlBlk(__a, __a0);
4401 shared_ptr<_Tp> __r;
4402 __r.__ptr_ = __hold2.get()->get();
4403 __r.__cntrl_ = __hold2.release();
4404 __r.__enable_weak_this(__r.__ptr_);
4409 template<class _Alloc, class _A0, class _A1>
4411 shared_ptr<_Tp>::allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1)
4413 typedef __shared_ptr_emplace<_Tp, _Alloc> _CntrlBlk;
4414 typedef typename _Alloc::template rebind<_CntrlBlk>::other _Alloc2;
4415 typedef __allocator_destructor<_Alloc2> _D2;
4416 _Alloc2 __alloc2(__a);
4417 unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
4418 ::new(__hold2.get()) _CntrlBlk(__a, __a0, __a1);
4419 shared_ptr<_Tp> __r;
4420 __r.__ptr_ = __hold2.get()->get();
4421 __r.__cntrl_ = __hold2.release();
4422 __r.__enable_weak_this(__r.__ptr_);
4427 template<class _Alloc, class _A0, class _A1, class _A2>
4429 shared_ptr<_Tp>::allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1, _A2& __a2)
4431 typedef __shared_ptr_emplace<_Tp, _Alloc> _CntrlBlk;
4432 typedef typename _Alloc::template rebind<_CntrlBlk>::other _Alloc2;
4433 typedef __allocator_destructor<_Alloc2> _D2;
4434 _Alloc2 __alloc2(__a);
4435 unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1));
4436 ::new(__hold2.get()) _CntrlBlk(__a, __a0, __a1, __a2);
4437 shared_ptr<_Tp> __r;
4438 __r.__ptr_ = __hold2.get()->get();
4439 __r.__cntrl_ = __hold2.release();
4440 __r.__enable_weak_this(__r.__ptr_);
4444 #endif // _LIBCPP_HAS_NO_VARIADICS
4447 shared_ptr<_Tp>::~shared_ptr()
4450 __cntrl_->__release_shared();
4454 inline _LIBCPP_INLINE_VISIBILITY
4456 shared_ptr<_Tp>::operator=(const shared_ptr& __r) _NOEXCEPT
4458 shared_ptr(__r).swap(*this);
4464 inline _LIBCPP_INLINE_VISIBILITY
4467 is_convertible<_Yp*, _Tp*>::value,
4470 shared_ptr<_Tp>::operator=(const shared_ptr<_Yp>& __r) _NOEXCEPT
4472 shared_ptr(__r).swap(*this);
4476 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
4479 inline _LIBCPP_INLINE_VISIBILITY
4481 shared_ptr<_Tp>::operator=(shared_ptr&& __r) _NOEXCEPT
4483 shared_ptr(_VSTD::move(__r)).swap(*this);
4489 inline _LIBCPP_INLINE_VISIBILITY
4492 is_convertible<_Yp*, _Tp*>::value,
4495 shared_ptr<_Tp>::operator=(shared_ptr<_Yp>&& __r)
4497 shared_ptr(_VSTD::move(__r)).swap(*this);
4503 inline _LIBCPP_INLINE_VISIBILITY
4506 !is_array<_Yp>::value &&
4507 is_convertible<_Yp*, _Tp*>::value,
4510 shared_ptr<_Tp>::operator=(auto_ptr<_Yp>&& __r)
4512 shared_ptr(_VSTD::move(__r)).swap(*this);
4517 template <class _Yp, class _Dp>
4518 inline _LIBCPP_INLINE_VISIBILITY
4521 !is_array<_Yp>::value &&
4522 is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, _Tp*>::value,
4525 shared_ptr<_Tp>::operator=(unique_ptr<_Yp, _Dp>&& __r)
4527 shared_ptr(_VSTD::move(__r)).swap(*this);
4531 #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES
4535 inline _LIBCPP_INLINE_VISIBILITY
4538 !is_array<_Yp>::value &&
4539 is_convertible<_Yp*, _Tp*>::value,
4542 shared_ptr<_Tp>::operator=(auto_ptr<_Yp> __r)
4544 shared_ptr(__r).swap(*this);
4549 template <class _Yp, class _Dp>
4550 inline _LIBCPP_INLINE_VISIBILITY
4553 !is_array<_Yp>::value &&
4554 is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, _Tp*>::value,
4557 shared_ptr<_Tp>::operator=(unique_ptr<_Yp, _Dp> __r)
4559 shared_ptr(_VSTD::move(__r)).swap(*this);
4563 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
4566 inline _LIBCPP_INLINE_VISIBILITY
4568 shared_ptr<_Tp>::swap(shared_ptr& __r) _NOEXCEPT
4570 _VSTD::swap(__ptr_, __r.__ptr_);
4571 _VSTD::swap(__cntrl_, __r.__cntrl_);
4575 inline _LIBCPP_INLINE_VISIBILITY
4577 shared_ptr<_Tp>::reset() _NOEXCEPT
4579 shared_ptr().swap(*this);
4584 inline _LIBCPP_INLINE_VISIBILITY
4587 is_convertible<_Yp*, _Tp*>::value,
4590 shared_ptr<_Tp>::reset(_Yp* __p)
4592 shared_ptr(__p).swap(*this);
4596 template<class _Yp, class _Dp>
4597 inline _LIBCPP_INLINE_VISIBILITY
4600 is_convertible<_Yp*, _Tp*>::value,
4603 shared_ptr<_Tp>::reset(_Yp* __p, _Dp __d)
4605 shared_ptr(__p, __d).swap(*this);
4609 template<class _Yp, class _Dp, class _Alloc>
4610 inline _LIBCPP_INLINE_VISIBILITY
4613 is_convertible<_Yp*, _Tp*>::value,
4616 shared_ptr<_Tp>::reset(_Yp* __p, _Dp __d, _Alloc __a)
4618 shared_ptr(__p, __d, __a).swap(*this);
4621 #ifndef _LIBCPP_HAS_NO_VARIADICS
4623 template<class _Tp, class ..._Args>
4624 inline _LIBCPP_INLINE_VISIBILITY
4627 !is_array<_Tp>::value,
4630 make_shared(_Args&& ...__args)
4632 return shared_ptr<_Tp>::make_shared(_VSTD::forward<_Args>(__args)...);
4635 template<class _Tp, class _Alloc, class ..._Args>
4636 inline _LIBCPP_INLINE_VISIBILITY
4639 !is_array<_Tp>::value,
4642 allocate_shared(const _Alloc& __a, _Args&& ...__args)
4644 return shared_ptr<_Tp>::allocate_shared(__a, _VSTD::forward<_Args>(__args)...);
4647 #else // _LIBCPP_HAS_NO_VARIADICS
4650 inline _LIBCPP_INLINE_VISIBILITY
4654 return shared_ptr<_Tp>::make_shared();
4657 template<class _Tp, class _A0>
4658 inline _LIBCPP_INLINE_VISIBILITY
4660 make_shared(_A0& __a0)
4662 return shared_ptr<_Tp>::make_shared(__a0);
4665 template<class _Tp, class _A0, class _A1>
4666 inline _LIBCPP_INLINE_VISIBILITY
4668 make_shared(_A0& __a0, _A1& __a1)
4670 return shared_ptr<_Tp>::make_shared(__a0, __a1);
4673 template<class _Tp, class _A0, class _A1, class _A2>
4674 inline _LIBCPP_INLINE_VISIBILITY
4676 make_shared(_A0& __a0, _A1& __a1, _A2& __a2)
4678 return shared_ptr<_Tp>::make_shared(__a0, __a1, __a2);
4681 template<class _Tp, class _Alloc>
4682 inline _LIBCPP_INLINE_VISIBILITY
4684 allocate_shared(const _Alloc& __a)
4686 return shared_ptr<_Tp>::allocate_shared(__a);
4689 template<class _Tp, class _Alloc, class _A0>
4690 inline _LIBCPP_INLINE_VISIBILITY
4692 allocate_shared(const _Alloc& __a, _A0& __a0)
4694 return shared_ptr<_Tp>::allocate_shared(__a, __a0);
4697 template<class _Tp, class _Alloc, class _A0, class _A1>
4698 inline _LIBCPP_INLINE_VISIBILITY
4700 allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1)
4702 return shared_ptr<_Tp>::allocate_shared(__a, __a0, __a1);
4705 template<class _Tp, class _Alloc, class _A0, class _A1, class _A2>
4706 inline _LIBCPP_INLINE_VISIBILITY
4708 allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1, _A2& __a2)
4710 return shared_ptr<_Tp>::allocate_shared(__a, __a0, __a1, __a2);
4713 #endif // _LIBCPP_HAS_NO_VARIADICS
4715 template<class _Tp, class _Up>
4716 inline _LIBCPP_INLINE_VISIBILITY
4718 operator==(const shared_ptr<_Tp>& __x, const shared_ptr<_Up>& __y) _NOEXCEPT
4720 return __x.get() == __y.get();
4723 template<class _Tp, class _Up>
4724 inline _LIBCPP_INLINE_VISIBILITY
4726 operator!=(const shared_ptr<_Tp>& __x, const shared_ptr<_Up>& __y) _NOEXCEPT
4728 return !(__x == __y);
4731 template<class _Tp, class _Up>
4732 inline _LIBCPP_INLINE_VISIBILITY
4734 operator<(const shared_ptr<_Tp>& __x, const shared_ptr<_Up>& __y) _NOEXCEPT
4736 typedef typename common_type<_Tp*, _Up*>::type _V;
4737 return less<_V>()(__x.get(), __y.get());
4740 template<class _Tp, class _Up>
4741 inline _LIBCPP_INLINE_VISIBILITY
4743 operator>(const shared_ptr<_Tp>& __x, const shared_ptr<_Up>& __y) _NOEXCEPT
4748 template<class _Tp, class _Up>
4749 inline _LIBCPP_INLINE_VISIBILITY
4751 operator<=(const shared_ptr<_Tp>& __x, const shared_ptr<_Up>& __y) _NOEXCEPT
4753 return !(__y < __x);
4756 template<class _Tp, class _Up>
4757 inline _LIBCPP_INLINE_VISIBILITY
4759 operator>=(const shared_ptr<_Tp>& __x, const shared_ptr<_Up>& __y) _NOEXCEPT
4761 return !(__x < __y);
4765 inline _LIBCPP_INLINE_VISIBILITY
4767 operator==(const shared_ptr<_Tp>& __x, nullptr_t) _NOEXCEPT
4773 inline _LIBCPP_INLINE_VISIBILITY
4775 operator==(nullptr_t, const shared_ptr<_Tp>& __x) _NOEXCEPT
4781 inline _LIBCPP_INLINE_VISIBILITY
4783 operator!=(const shared_ptr<_Tp>& __x, nullptr_t) _NOEXCEPT
4785 return static_cast<bool>(__x);
4789 inline _LIBCPP_INLINE_VISIBILITY
4791 operator!=(nullptr_t, const shared_ptr<_Tp>& __x) _NOEXCEPT
4793 return static_cast<bool>(__x);
4797 inline _LIBCPP_INLINE_VISIBILITY
4799 operator<(const shared_ptr<_Tp>& __x, nullptr_t) _NOEXCEPT
4801 return less<_Tp*>()(__x.get(), nullptr);
4805 inline _LIBCPP_INLINE_VISIBILITY
4807 operator<(nullptr_t, const shared_ptr<_Tp>& __x) _NOEXCEPT
4809 return less<_Tp*>()(nullptr, __x.get());
4813 inline _LIBCPP_INLINE_VISIBILITY
4815 operator>(const shared_ptr<_Tp>& __x, nullptr_t) _NOEXCEPT
4817 return nullptr < __x;
4821 inline _LIBCPP_INLINE_VISIBILITY
4823 operator>(nullptr_t, const shared_ptr<_Tp>& __x) _NOEXCEPT
4825 return __x < nullptr;
4829 inline _LIBCPP_INLINE_VISIBILITY
4831 operator<=(const shared_ptr<_Tp>& __x, nullptr_t) _NOEXCEPT
4833 return !(nullptr < __x);
4837 inline _LIBCPP_INLINE_VISIBILITY
4839 operator<=(nullptr_t, const shared_ptr<_Tp>& __x) _NOEXCEPT
4841 return !(__x < nullptr);
4845 inline _LIBCPP_INLINE_VISIBILITY
4847 operator>=(const shared_ptr<_Tp>& __x, nullptr_t) _NOEXCEPT
4849 return !(__x < nullptr);
4853 inline _LIBCPP_INLINE_VISIBILITY
4855 operator>=(nullptr_t, const shared_ptr<_Tp>& __x) _NOEXCEPT
4857 return !(nullptr < __x);
4861 inline _LIBCPP_INLINE_VISIBILITY
4863 swap(shared_ptr<_Tp>& __x, shared_ptr<_Tp>& __y) _NOEXCEPT
4868 template<class _Tp, class _Up>
4869 inline _LIBCPP_INLINE_VISIBILITY
4872 !is_array<_Tp>::value && !is_array<_Up>::value,
4875 static_pointer_cast(const shared_ptr<_Up>& __r) _NOEXCEPT
4877 return shared_ptr<_Tp>(__r, static_cast<_Tp*>(__r.get()));
4880 template<class _Tp, class _Up>
4881 inline _LIBCPP_INLINE_VISIBILITY
4884 !is_array<_Tp>::value && !is_array<_Up>::value,
4887 dynamic_pointer_cast(const shared_ptr<_Up>& __r) _NOEXCEPT
4889 _Tp* __p = dynamic_cast<_Tp*>(__r.get());
4890 return __p ? shared_ptr<_Tp>(__r, __p) : shared_ptr<_Tp>();
4893 template<class _Tp, class _Up>
4896 is_array<_Tp>::value == is_array<_Up>::value,
4899 const_pointer_cast(const shared_ptr<_Up>& __r) _NOEXCEPT
4901 typedef typename remove_extent<_Tp>::type _RTp;
4902 return shared_ptr<_Tp>(__r, const_cast<_RTp*>(__r.get()));
4905 #ifndef _LIBCPP_NO_RTTI
4907 template<class _Dp, class _Tp>
4908 inline _LIBCPP_INLINE_VISIBILITY
4910 get_deleter(const shared_ptr<_Tp>& __p) _NOEXCEPT
4912 return __p.template __get_deleter<_Dp>();
4915 #endif // _LIBCPP_NO_RTTI
4918 class _LIBCPP_VISIBLE weak_ptr
4921 typedef _Tp element_type;
4923 element_type* __ptr_;
4924 __shared_weak_count* __cntrl_;
4927 _LIBCPP_CONSTEXPR weak_ptr() _NOEXCEPT;
4928 template<class _Yp> weak_ptr(shared_ptr<_Yp> const& __r,
4929 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat*>::type = 0)
4931 weak_ptr(weak_ptr const& __r) _NOEXCEPT;
4932 template<class _Yp> weak_ptr(weak_ptr<_Yp> const& __r,
4933 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat*>::type = 0)
4936 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
4937 weak_ptr(weak_ptr&& __r) _NOEXCEPT;
4938 template<class _Yp> weak_ptr(weak_ptr<_Yp>&& __r,
4939 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat*>::type = 0)
4941 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
4944 weak_ptr& operator=(weak_ptr const& __r) _NOEXCEPT;
4948 is_convertible<_Yp*, element_type*>::value,
4951 operator=(weak_ptr<_Yp> const& __r) _NOEXCEPT;
4953 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
4955 weak_ptr& operator=(weak_ptr&& __r) _NOEXCEPT;
4959 is_convertible<_Yp*, element_type*>::value,
4962 operator=(weak_ptr<_Yp>&& __r) _NOEXCEPT;
4964 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
4969 is_convertible<_Yp*, element_type*>::value,
4972 operator=(shared_ptr<_Yp> const& __r) _NOEXCEPT;
4974 void swap(weak_ptr& __r) _NOEXCEPT;
4975 void reset() _NOEXCEPT;
4977 _LIBCPP_INLINE_VISIBILITY
4978 long use_count() const _NOEXCEPT
4979 {return __cntrl_ ? __cntrl_->use_count() : 0;}
4980 _LIBCPP_INLINE_VISIBILITY
4981 bool expired() const _NOEXCEPT
4982 {return __cntrl_ == 0 || __cntrl_->use_count() == 0;}
4983 shared_ptr<_Tp> lock() const _NOEXCEPT;
4985 _LIBCPP_INLINE_VISIBILITY
4986 bool owner_before(const shared_ptr<_Up>& __r) const
4987 {return __cntrl_ < __r.__cntrl_;}
4989 _LIBCPP_INLINE_VISIBILITY
4990 bool owner_before(const weak_ptr<_Up>& __r) const
4991 {return __cntrl_ < __r.__cntrl_;}
4993 template <class _Up> friend class _LIBCPP_VISIBLE weak_ptr;
4994 template <class _Up> friend class _LIBCPP_VISIBLE shared_ptr;
4998 inline _LIBCPP_INLINE_VISIBILITY
5000 weak_ptr<_Tp>::weak_ptr() _NOEXCEPT
5007 inline _LIBCPP_INLINE_VISIBILITY
5008 weak_ptr<_Tp>::weak_ptr(weak_ptr const& __r) _NOEXCEPT
5009 : __ptr_(__r.__ptr_),
5010 __cntrl_(__r.__cntrl_)
5013 __cntrl_->__add_weak();
5018 inline _LIBCPP_INLINE_VISIBILITY
5019 weak_ptr<_Tp>::weak_ptr(shared_ptr<_Yp> const& __r,
5020 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat*>::type)
5022 : __ptr_(__r.__ptr_),
5023 __cntrl_(__r.__cntrl_)
5026 __cntrl_->__add_weak();
5031 inline _LIBCPP_INLINE_VISIBILITY
5032 weak_ptr<_Tp>::weak_ptr(weak_ptr<_Yp> const& __r,
5033 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat*>::type)
5035 : __ptr_(__r.__ptr_),
5036 __cntrl_(__r.__cntrl_)
5039 __cntrl_->__add_weak();
5042 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
5045 inline _LIBCPP_INLINE_VISIBILITY
5046 weak_ptr<_Tp>::weak_ptr(weak_ptr&& __r) _NOEXCEPT
5047 : __ptr_(__r.__ptr_),
5048 __cntrl_(__r.__cntrl_)
5056 inline _LIBCPP_INLINE_VISIBILITY
5057 weak_ptr<_Tp>::weak_ptr(weak_ptr<_Yp>&& __r,
5058 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat*>::type)
5060 : __ptr_(__r.__ptr_),
5061 __cntrl_(__r.__cntrl_)
5067 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
5070 weak_ptr<_Tp>::~weak_ptr()
5073 __cntrl_->__release_weak();
5077 inline _LIBCPP_INLINE_VISIBILITY
5079 weak_ptr<_Tp>::operator=(weak_ptr const& __r) _NOEXCEPT
5081 weak_ptr(__r).swap(*this);
5087 inline _LIBCPP_INLINE_VISIBILITY
5090 is_convertible<_Yp*, _Tp*>::value,
5093 weak_ptr<_Tp>::operator=(weak_ptr<_Yp> const& __r) _NOEXCEPT
5095 weak_ptr(__r).swap(*this);
5099 #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES
5102 inline _LIBCPP_INLINE_VISIBILITY
5104 weak_ptr<_Tp>::operator=(weak_ptr&& __r) _NOEXCEPT
5106 weak_ptr(_VSTD::move(__r)).swap(*this);
5112 inline _LIBCPP_INLINE_VISIBILITY
5115 is_convertible<_Yp*, _Tp*>::value,
5118 weak_ptr<_Tp>::operator=(weak_ptr<_Yp>&& __r) _NOEXCEPT
5120 weak_ptr(_VSTD::move(__r)).swap(*this);
5124 #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES
5128 inline _LIBCPP_INLINE_VISIBILITY
5131 is_convertible<_Yp*, _Tp*>::value,
5134 weak_ptr<_Tp>::operator=(shared_ptr<_Yp> const& __r) _NOEXCEPT
5136 weak_ptr(__r).swap(*this);
5141 inline _LIBCPP_INLINE_VISIBILITY
5143 weak_ptr<_Tp>::swap(weak_ptr& __r) _NOEXCEPT
5145 _VSTD::swap(__ptr_, __r.__ptr_);
5146 _VSTD::swap(__cntrl_, __r.__cntrl_);
5150 inline _LIBCPP_INLINE_VISIBILITY
5152 swap(weak_ptr<_Tp>& __x, weak_ptr<_Tp>& __y) _NOEXCEPT
5158 inline _LIBCPP_INLINE_VISIBILITY
5160 weak_ptr<_Tp>::reset() _NOEXCEPT
5162 weak_ptr().swap(*this);
5167 shared_ptr<_Tp>::shared_ptr(const weak_ptr<_Yp>& __r,
5168 typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat>::type)
5169 : __ptr_(__r.__ptr_),
5170 __cntrl_(__r.__cntrl_ ? __r.__cntrl_->lock() : __r.__cntrl_)
5173 #ifndef _LIBCPP_NO_EXCEPTIONS
5174 throw bad_weak_ptr();
5176 assert(!"bad_weak_ptr");
5182 weak_ptr<_Tp>::lock() const _NOEXCEPT
5184 shared_ptr<_Tp> __r;
5185 __r.__cntrl_ = __cntrl_ ? __cntrl_->lock() : __cntrl_;
5187 __r.__ptr_ = __ptr_;
5191 template <class _Tp> struct owner_less;
5193 template <class _Tp>
5194 struct _LIBCPP_VISIBLE owner_less<shared_ptr<_Tp> >
5195 : binary_function<shared_ptr<_Tp>, shared_ptr<_Tp>, bool>
5197 typedef bool result_type;
5198 _LIBCPP_INLINE_VISIBILITY
5199 bool operator()(shared_ptr<_Tp> const& __x, shared_ptr<_Tp> const& __y) const
5200 {return __x.owner_before(__y);}
5201 _LIBCPP_INLINE_VISIBILITY
5202 bool operator()(shared_ptr<_Tp> const& __x, weak_ptr<_Tp> const& __y) const
5203 {return __x.owner_before(__y);}
5204 _LIBCPP_INLINE_VISIBILITY
5205 bool operator()( weak_ptr<_Tp> const& __x, shared_ptr<_Tp> const& __y) const
5206 {return __x.owner_before(__y);}
5209 template <class _Tp>
5210 struct _LIBCPP_VISIBLE owner_less<weak_ptr<_Tp> >
5211 : binary_function<weak_ptr<_Tp>, weak_ptr<_Tp>, bool>
5213 typedef bool result_type;
5214 _LIBCPP_INLINE_VISIBILITY
5215 bool operator()( weak_ptr<_Tp> const& __x, weak_ptr<_Tp> const& __y) const
5216 {return __x.owner_before(__y);}
5217 _LIBCPP_INLINE_VISIBILITY
5218 bool operator()(shared_ptr<_Tp> const& __x, weak_ptr<_Tp> const& __y) const
5219 {return __x.owner_before(__y);}
5220 _LIBCPP_INLINE_VISIBILITY
5221 bool operator()( weak_ptr<_Tp> const& __x, shared_ptr<_Tp> const& __y) const
5222 {return __x.owner_before(__y);}
5226 class _LIBCPP_VISIBLE enable_shared_from_this
5228 mutable weak_ptr<_Tp> __weak_this_;
5230 _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR
5231 enable_shared_from_this() _NOEXCEPT {}
5232 _LIBCPP_INLINE_VISIBILITY
5233 enable_shared_from_this(enable_shared_from_this const&) _NOEXCEPT {}
5234 _LIBCPP_INLINE_VISIBILITY
5235 enable_shared_from_this& operator=(enable_shared_from_this const&) _NOEXCEPT
5237 _LIBCPP_INLINE_VISIBILITY
5238 ~enable_shared_from_this() {}
5240 _LIBCPP_INLINE_VISIBILITY
5241 shared_ptr<_Tp> shared_from_this()
5242 {return shared_ptr<_Tp>(__weak_this_);}
5243 _LIBCPP_INLINE_VISIBILITY
5244 shared_ptr<_Tp const> shared_from_this() const
5245 {return shared_ptr<const _Tp>(__weak_this_);}
5247 template <class _Up> friend class shared_ptr;
5250 template <class _Tp>
5251 struct _LIBCPP_VISIBLE hash<shared_ptr<_Tp> >
5253 typedef shared_ptr<_Tp> argument_type;
5254 typedef size_t result_type;
5255 _LIBCPP_INLINE_VISIBILITY
5256 result_type operator()(const argument_type& __ptr) const _NOEXCEPT
5258 return hash<_Tp*>()(__ptr.get());
5262 template<class _CharT, class _Traits, class _Yp>
5263 inline _LIBCPP_INLINE_VISIBILITY
5264 basic_ostream<_CharT, _Traits>&
5265 operator<<(basic_ostream<_CharT, _Traits>& __os, shared_ptr<_Yp> const& __p);
5267 #if __has_feature(cxx_atomic)
5273 void lock() _NOEXCEPT;
5274 void unlock() _NOEXCEPT;
5277 _LIBCPP_CONSTEXPR __sp_mut(void*) _NOEXCEPT;
5278 __sp_mut(const __sp_mut&);
5279 __sp_mut& operator=(const __sp_mut&);
5281 friend _LIBCPP_VISIBLE __sp_mut& __get_sp_mut(const void*);
5284 _LIBCPP_VISIBLE __sp_mut& __get_sp_mut(const void*);
5286 template <class _Tp>
5287 inline _LIBCPP_INLINE_VISIBILITY
5289 atomic_is_lock_free(const shared_ptr<_Tp>*)
5294 template <class _Tp>
5296 atomic_load(const shared_ptr<_Tp>* __p)
5298 __sp_mut& __m = __get_sp_mut(__p);
5300 shared_ptr<_Tp> __q = *__p;
5305 template <class _Tp>
5306 inline _LIBCPP_INLINE_VISIBILITY
5308 atomic_load_explicit(const shared_ptr<_Tp>* __p, memory_order)
5310 return atomic_load(__p);
5313 template <class _Tp>
5315 atomic_store(shared_ptr<_Tp>* __p, shared_ptr<_Tp> __r)
5317 __sp_mut& __m = __get_sp_mut(__p);
5323 template <class _Tp>
5324 inline _LIBCPP_INLINE_VISIBILITY
5326 atomic_store_explicit(shared_ptr<_Tp>* __p, shared_ptr<_Tp> __r, memory_order)
5328 atomic_store(__p, __r);
5331 template <class _Tp>
5333 atomic_exchange(shared_ptr<_Tp>* __p, shared_ptr<_Tp> __r)
5335 __sp_mut& __m = __get_sp_mut(__p);
5342 template <class _Tp>
5343 inline _LIBCPP_INLINE_VISIBILITY
5345 atomic_exchange_explicit(shared_ptr<_Tp>* __p, shared_ptr<_Tp> __r, memory_order)
5347 return atomic_exchange(__p, __r);
5350 template <class _Tp>
5352 atomic_compare_exchange_strong(shared_ptr<_Tp>* __p, shared_ptr<_Tp>* __v, shared_ptr<_Tp> __w)
5354 __sp_mut& __m = __get_sp_mut(__p);
5356 if (__p->__owner_equivalent(*__v))
5367 template <class _Tp>
5368 inline _LIBCPP_INLINE_VISIBILITY
5370 atomic_compare_exchange_weak(shared_ptr<_Tp>* __p, shared_ptr<_Tp>* __v, shared_ptr<_Tp> __w)
5372 return atomic_compare_exchange_strong(__p, __v, __w);
5375 template <class _Tp>
5376 inline _LIBCPP_INLINE_VISIBILITY
5378 atomic_compare_exchange_strong_explicit(shared_ptr<_Tp>* __p, shared_ptr<_Tp>* __v,
5379 shared_ptr<_Tp> __w, memory_order, memory_order)
5381 return atomic_compare_exchange_strong(__p, __v, __w);
5384 template <class _Tp>
5385 inline _LIBCPP_INLINE_VISIBILITY
5387 atomic_compare_exchange_weak_explicit(shared_ptr<_Tp>* __p, shared_ptr<_Tp>* __v,
5388 shared_ptr<_Tp> __w, memory_order, memory_order)
5390 return atomic_compare_exchange_weak(__p, __v, __w);
5393 #endif // __has_feature(cxx_atomic)
5396 struct _LIBCPP_VISIBLE pointer_safety
5407 _LIBCPP_INLINE_VISIBILITY
5408 pointer_safety(__lx __v) : __v_(__v) {}
5409 _LIBCPP_INLINE_VISIBILITY
5410 operator int() const {return __v_;}
5413 void declare_reachable(void* __p);
5414 void declare_no_pointers(char* __p, size_t __n);
5415 void undeclare_no_pointers(char* __p, size_t __n);
5416 pointer_safety get_pointer_safety() _NOEXCEPT;
5417 void* __undeclare_reachable(void* __p);
5419 template <class _Tp>
5420 inline _LIBCPP_INLINE_VISIBILITY
5422 undeclare_reachable(_Tp* __p)
5424 return static_cast<_Tp*>(__undeclare_reachable(__p));
5427 void* align(size_t __align, size_t __sz, void*& __ptr, size_t& __space);
5429 _LIBCPP_END_NAMESPACE_STD
5431 #endif // _LIBCPP_MEMORY