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Diffstat (limited to 'contrib/llvm-project/libcxx/include/memory')
| -rw-r--r-- | contrib/llvm-project/libcxx/include/memory | 969 |
1 files changed, 969 insertions, 0 deletions
diff --git a/contrib/llvm-project/libcxx/include/memory b/contrib/llvm-project/libcxx/include/memory new file mode 100644 index 000000000000..fdb894353008 --- /dev/null +++ b/contrib/llvm-project/libcxx/include/memory @@ -0,0 +1,969 @@ +// -*- C++ -*- +//===-------------------------- memory ------------------------------------===// +// +// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. +// See https://llvm.org/LICENSE.txt for license information. +// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception +// +//===----------------------------------------------------------------------===// + +#ifndef _LIBCPP_MEMORY +#define _LIBCPP_MEMORY + +/* + memory synopsis + +namespace std +{ + +struct allocator_arg_t { }; +inline constexpr allocator_arg_t allocator_arg = allocator_arg_t(); + +template <class T, class Alloc> struct uses_allocator; + +template <class Ptr> +struct pointer_traits +{ + typedef Ptr pointer; + typedef <details> element_type; + typedef <details> difference_type; + + template <class U> using rebind = <details>; + + static pointer pointer_to(<details>); +}; + +template <class T> +struct pointer_traits<T*> +{ + typedef T* pointer; + typedef T element_type; + typedef ptrdiff_t difference_type; + + template <class U> using rebind = U*; + + static pointer pointer_to(<details>) noexcept; // constexpr in C++20 +}; + +template <class T> constexpr T* to_address(T* p) noexcept; // C++20 +template <class Ptr> constexpr auto to_address(const Ptr& p) noexcept; // C++20 + +template <class Alloc> +struct allocator_traits +{ + typedef Alloc allocator_type; + typedef typename allocator_type::value_type + value_type; + + typedef Alloc::pointer | value_type* pointer; + typedef Alloc::const_pointer + | pointer_traits<pointer>::rebind<const value_type> + const_pointer; + typedef Alloc::void_pointer + | pointer_traits<pointer>::rebind<void> + void_pointer; + typedef Alloc::const_void_pointer + | pointer_traits<pointer>::rebind<const void> + const_void_pointer; + typedef Alloc::difference_type + | pointer_traits<pointer>::difference_type + difference_type; + typedef Alloc::size_type + | make_unsigned<difference_type>::type + size_type; + typedef Alloc::propagate_on_container_copy_assignment + | false_type propagate_on_container_copy_assignment; + typedef Alloc::propagate_on_container_move_assignment + | false_type propagate_on_container_move_assignment; + typedef Alloc::propagate_on_container_swap + | false_type propagate_on_container_swap; + typedef Alloc::is_always_equal + | is_empty is_always_equal; + + template <class T> using rebind_alloc = Alloc::rebind<T>::other | Alloc<T, Args...>; + template <class T> using rebind_traits = allocator_traits<rebind_alloc<T>>; + + static pointer allocate(allocator_type& a, size_type n); // constexpr and [[nodiscard]] in C++20 + static pointer allocate(allocator_type& a, size_type n, const_void_pointer hint); // constexpr and [[nodiscard]] in C++20 + + static void deallocate(allocator_type& a, pointer p, size_type n) noexcept; // constexpr in C++20 + + template <class T, class... Args> + static void construct(allocator_type& a, T* p, Args&&... args); // constexpr in C++20 + + template <class T> + static void destroy(allocator_type& a, T* p); // constexpr in C++20 + + static size_type max_size(const allocator_type& a); // noexcept in C++14, constexpr in C++20 + static allocator_type select_on_container_copy_construction(const allocator_type& a); // constexpr in C++20 +}; + +template <> +class allocator<void> // removed in C++20 +{ +public: + typedef void* pointer; + typedef const void* const_pointer; + typedef void value_type; + + template <class _Up> struct rebind {typedef allocator<_Up> other;}; +}; + +template <class T> +class allocator +{ +public: + typedef size_t size_type; + typedef ptrdiff_t difference_type; + typedef T* pointer; // deprecated in C++17, removed in C++20 + typedef const T* const_pointer; // deprecated in C++17, removed in C++20 + typedef typename add_lvalue_reference<T>::type + reference; // deprecated in C++17, removed in C++20 + typedef typename add_lvalue_reference<const T>::type + const_reference; // deprecated in C++17, removed in C++20 + + typedef T value_type; + + template <class U> struct rebind {typedef allocator<U> other;}; // deprecated in C++17, removed in C++20 + + typedef true_type propagate_on_container_move_assignment; + typedef true_type is_always_equal; + + constexpr allocator() noexcept; // constexpr in C++20 + constexpr allocator(const allocator&) noexcept; // constexpr in C++20 + template <class U> + constexpr allocator(const allocator<U>&) noexcept; // constexpr in C++20 + ~allocator(); // constexpr in C++20 + pointer address(reference x) const noexcept; // deprecated in C++17, removed in C++20 + const_pointer address(const_reference x) const noexcept; // deprecated in C++17, removed in C++20 + T* allocate(size_t n, const void* hint); // deprecated in C++17, removed in C++20 + T* allocate(size_t n); // constexpr in C++20 + void deallocate(T* p, size_t n) noexcept; // constexpr in C++20 + size_type max_size() const noexcept; // deprecated in C++17, removed in C++20 + template<class U, class... Args> + void construct(U* p, Args&&... args); // deprecated in C++17, removed in C++20 + template <class U> + void destroy(U* p); // deprecated in C++17, removed in C++20 +}; + +template <class T, class U> +bool operator==(const allocator<T>&, const allocator<U>&) noexcept; // constexpr in C++20 + +template <class T, class U> +bool operator!=(const allocator<T>&, const allocator<U>&) noexcept; // constexpr in C++20 + +template <class OutputIterator, class T> +class raw_storage_iterator // deprecated in C++17, removed in C++20 + : public iterator<output_iterator_tag, void, void, void, void> // until C++17 +{ +public: + typedef output_iterator_tag iterator_category; + typedef void value_type; + typedef void difference_type; // until C++20 + typedef ptrdiff_t difference_type; // since C++20 + typedef void pointer; + typedef void reference; + + explicit raw_storage_iterator(OutputIterator x); + raw_storage_iterator& operator*(); + raw_storage_iterator& operator=(const T& element); + raw_storage_iterator& operator++(); + raw_storage_iterator operator++(int); +}; + +template <class T> pair<T*,ptrdiff_t> get_temporary_buffer(ptrdiff_t n) noexcept; +template <class T> void return_temporary_buffer(T* p) noexcept; + +template <class T> T* addressof(T& r) noexcept; +template <class T> T* addressof(const T&& r) noexcept = delete; + +template <class InputIterator, class ForwardIterator> +ForwardIterator +uninitialized_copy(InputIterator first, InputIterator last, ForwardIterator result); + +template <class InputIterator, class Size, class ForwardIterator> +ForwardIterator +uninitialized_copy_n(InputIterator first, Size n, ForwardIterator result); + +template <class ForwardIterator, class T> +void uninitialized_fill(ForwardIterator first, ForwardIterator last, const T& x); + +template <class ForwardIterator, class Size, class T> +ForwardIterator +uninitialized_fill_n(ForwardIterator first, Size n, const T& x); + +template <class T, class ...Args> +constexpr T* construct_at(T* location, Args&& ...args); // since C++20 + +template <class T> +void destroy_at(T* location); // constexpr in C++20 + +template <class ForwardIterator> +void destroy(ForwardIterator first, ForwardIterator last); // constexpr in C++20 + +template <class ForwardIterator, class Size> +ForwardIterator destroy_n(ForwardIterator first, Size n); // constexpr in C++20 + +template <class InputIterator, class ForwardIterator> + ForwardIterator uninitialized_move(InputIterator first, InputIterator last, ForwardIterator result); + +template <class InputIterator, class Size, class ForwardIterator> + pair<InputIterator,ForwardIterator> uninitialized_move_n(InputIterator first, Size n, ForwardIterator result); + +template <class ForwardIterator> + void uninitialized_value_construct(ForwardIterator first, ForwardIterator last); + +template <class ForwardIterator, class Size> + ForwardIterator uninitialized_value_construct_n(ForwardIterator first, Size n); + +template <class ForwardIterator> + void uninitialized_default_construct(ForwardIterator first, ForwardIterator last); + +template <class ForwardIterator, class Size> + ForwardIterator uninitialized_default_construct_n(ForwardIterator first, Size n); + +template <class Y> struct auto_ptr_ref {}; // deprecated in C++11, removed in C++17 + +template<class X> +class auto_ptr // deprecated in C++11, removed in C++17 +{ +public: + typedef X element_type; + + explicit auto_ptr(X* p =0) throw(); + auto_ptr(auto_ptr&) throw(); + template<class Y> auto_ptr(auto_ptr<Y>&) throw(); + auto_ptr& operator=(auto_ptr&) throw(); + template<class Y> auto_ptr& operator=(auto_ptr<Y>&) throw(); + auto_ptr& operator=(auto_ptr_ref<X> r) throw(); + ~auto_ptr() throw(); + + typename add_lvalue_reference<X>::type operator*() const throw(); + X* operator->() const throw(); + X* get() const throw(); + X* release() throw(); + void reset(X* p =0) throw(); + + auto_ptr(auto_ptr_ref<X>) throw(); + template<class Y> operator auto_ptr_ref<Y>() throw(); + template<class Y> operator auto_ptr<Y>() throw(); +}; + +template <class T> +struct default_delete +{ + constexpr default_delete() noexcept = default; + template <class U> default_delete(const default_delete<U>&) noexcept; + + void operator()(T*) const noexcept; +}; + +template <class T> +struct default_delete<T[]> +{ + constexpr default_delete() noexcept = default; + void operator()(T*) const noexcept; + template <class U> void operator()(U*) const = delete; +}; + +template <class T, class D = default_delete<T>> +class unique_ptr +{ +public: + typedef see below pointer; + typedef T element_type; + typedef D deleter_type; + + // constructors + constexpr unique_ptr() noexcept; + explicit unique_ptr(pointer p) noexcept; + unique_ptr(pointer p, see below d1) noexcept; + unique_ptr(pointer p, see below d2) noexcept; + unique_ptr(unique_ptr&& u) noexcept; + unique_ptr(nullptr_t) noexcept : unique_ptr() { } + template <class U, class E> + unique_ptr(unique_ptr<U, E>&& u) noexcept; + template <class U> + unique_ptr(auto_ptr<U>&& u) noexcept; // removed in C++17 + + // destructor + ~unique_ptr(); + + // assignment + unique_ptr& operator=(unique_ptr&& u) noexcept; + template <class U, class E> unique_ptr& operator=(unique_ptr<U, E>&& u) noexcept; + unique_ptr& operator=(nullptr_t) noexcept; + + // observers + typename add_lvalue_reference<T>::type operator*() const; + pointer operator->() const noexcept; + pointer get() const noexcept; + deleter_type& get_deleter() noexcept; + const deleter_type& get_deleter() const noexcept; + explicit operator bool() const noexcept; + + // modifiers + pointer release() noexcept; + void reset(pointer p = pointer()) noexcept; + void swap(unique_ptr& u) noexcept; +}; + +template <class T, class D> +class unique_ptr<T[], D> +{ +public: + typedef implementation-defined pointer; + typedef T element_type; + typedef D deleter_type; + + // constructors + constexpr unique_ptr() noexcept; + explicit unique_ptr(pointer p) noexcept; + unique_ptr(pointer p, see below d) noexcept; + unique_ptr(pointer p, see below d) noexcept; + unique_ptr(unique_ptr&& u) noexcept; + unique_ptr(nullptr_t) noexcept : unique_ptr() { } + + // destructor + ~unique_ptr(); + + // assignment + unique_ptr& operator=(unique_ptr&& u) noexcept; + unique_ptr& operator=(nullptr_t) noexcept; + + // observers + T& operator[](size_t i) const; + pointer get() const noexcept; + deleter_type& get_deleter() noexcept; + const deleter_type& get_deleter() const noexcept; + explicit operator bool() const noexcept; + + // modifiers + pointer release() noexcept; + void reset(pointer p = pointer()) noexcept; + void reset(nullptr_t) noexcept; + template <class U> void reset(U) = delete; + void swap(unique_ptr& u) noexcept; +}; + +template <class T, class D> + void swap(unique_ptr<T, D>& x, unique_ptr<T, D>& y) noexcept; + +template <class T1, class D1, class T2, class D2> + bool operator==(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y); +template <class T1, class D1, class T2, class D2> + bool operator!=(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y); +template <class T1, class D1, class T2, class D2> + bool operator<(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y); +template <class T1, class D1, class T2, class D2> + bool operator<=(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y); +template <class T1, class D1, class T2, class D2> + bool operator>(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y); +template <class T1, class D1, class T2, class D2> + bool operator>=(const unique_ptr<T1, D1>& x, const unique_ptr<T2, D2>& y); + +template <class T, class D> + bool operator==(const unique_ptr<T, D>& x, nullptr_t) noexcept; +template <class T, class D> + bool operator==(nullptr_t, const unique_ptr<T, D>& y) noexcept; +template <class T, class D> + bool operator!=(const unique_ptr<T, D>& x, nullptr_t) noexcept; +template <class T, class D> + bool operator!=(nullptr_t, const unique_ptr<T, D>& y) noexcept; + +template <class T, class D> + bool operator<(const unique_ptr<T, D>& x, nullptr_t); +template <class T, class D> + bool operator<(nullptr_t, const unique_ptr<T, D>& y); +template <class T, class D> + bool operator<=(const unique_ptr<T, D>& x, nullptr_t); +template <class T, class D> + bool operator<=(nullptr_t, const unique_ptr<T, D>& y); +template <class T, class D> + bool operator>(const unique_ptr<T, D>& x, nullptr_t); +template <class T, class D> + bool operator>(nullptr_t, const unique_ptr<T, D>& y); +template <class T, class D> + bool operator>=(const unique_ptr<T, D>& x, nullptr_t); +template <class T, class D> + bool operator>=(nullptr_t, const unique_ptr<T, D>& y); + +class bad_weak_ptr + : public std::exception +{ + bad_weak_ptr() noexcept; +}; + +template<class T, class... Args> unique_ptr<T> make_unique(Args&&... args); // C++14 +template<class T> unique_ptr<T> make_unique(size_t n); // C++14 +template<class T, class... Args> unspecified make_unique(Args&&...) = delete; // C++14, T == U[N] + +template<class E, class T, class Y, class D> + basic_ostream<E, T>& operator<< (basic_ostream<E, T>& os, unique_ptr<Y, D> const& p); + +template<class T> +class shared_ptr +{ +public: + typedef T element_type; + typedef weak_ptr<T> weak_type; // C++17 + + // constructors: + constexpr shared_ptr() noexcept; + template<class Y> explicit shared_ptr(Y* p); + template<class Y, class D> shared_ptr(Y* p, D d); + template<class Y, class D, class A> shared_ptr(Y* p, D d, A a); + template <class D> shared_ptr(nullptr_t p, D d); + template <class D, class A> shared_ptr(nullptr_t p, D d, A a); + template<class Y> shared_ptr(const shared_ptr<Y>& r, T *p) noexcept; + shared_ptr(const shared_ptr& r) noexcept; + template<class Y> shared_ptr(const shared_ptr<Y>& r) noexcept; + shared_ptr(shared_ptr&& r) noexcept; + template<class Y> shared_ptr(shared_ptr<Y>&& r) noexcept; + template<class Y> explicit shared_ptr(const weak_ptr<Y>& r); + template<class Y> shared_ptr(auto_ptr<Y>&& r); // removed in C++17 + template <class Y, class D> shared_ptr(unique_ptr<Y, D>&& r); + shared_ptr(nullptr_t) : shared_ptr() { } + + // destructor: + ~shared_ptr(); + + // assignment: + shared_ptr& operator=(const shared_ptr& r) noexcept; + template<class Y> shared_ptr& operator=(const shared_ptr<Y>& r) noexcept; + shared_ptr& operator=(shared_ptr&& r) noexcept; + template<class Y> shared_ptr& operator=(shared_ptr<Y>&& r); + template<class Y> shared_ptr& operator=(auto_ptr<Y>&& r); // removed in C++17 + template <class Y, class D> shared_ptr& operator=(unique_ptr<Y, D>&& r); + + // modifiers: + void swap(shared_ptr& r) noexcept; + void reset() noexcept; + template<class Y> void reset(Y* p); + template<class Y, class D> void reset(Y* p, D d); + template<class Y, class D, class A> void reset(Y* p, D d, A a); + + // observers: + T* get() const noexcept; + T& operator*() const noexcept; + T* operator->() const noexcept; + long use_count() const noexcept; + bool unique() const noexcept; + explicit operator bool() const noexcept; + template<class U> bool owner_before(shared_ptr<U> const& b) const noexcept; + template<class U> bool owner_before(weak_ptr<U> const& b) const noexcept; +}; + +template<class T> +shared_ptr(weak_ptr<T>) -> shared_ptr<T>; +template<class T, class D> +shared_ptr(unique_ptr<T, D>) -> shared_ptr<T>; + +// shared_ptr comparisons: +template<class T, class U> + bool operator==(shared_ptr<T> const& a, shared_ptr<U> const& b) noexcept; +template<class T, class U> + bool operator!=(shared_ptr<T> const& a, shared_ptr<U> const& b) noexcept; +template<class T, class U> + bool operator<(shared_ptr<T> const& a, shared_ptr<U> const& b) noexcept; +template<class T, class U> + bool operator>(shared_ptr<T> const& a, shared_ptr<U> const& b) noexcept; +template<class T, class U> + bool operator<=(shared_ptr<T> const& a, shared_ptr<U> const& b) noexcept; +template<class T, class U> + bool operator>=(shared_ptr<T> const& a, shared_ptr<U> const& b) noexcept; + +template <class T> + bool operator==(const shared_ptr<T>& x, nullptr_t) noexcept; +template <class T> + bool operator==(nullptr_t, const shared_ptr<T>& y) noexcept; +template <class T> + bool operator!=(const shared_ptr<T>& x, nullptr_t) noexcept; +template <class T> + bool operator!=(nullptr_t, const shared_ptr<T>& y) noexcept; +template <class T> + bool operator<(const shared_ptr<T>& x, nullptr_t) noexcept; +template <class T> +bool operator<(nullptr_t, const shared_ptr<T>& y) noexcept; +template <class T> + bool operator<=(const shared_ptr<T>& x, nullptr_t) noexcept; +template <class T> + bool operator<=(nullptr_t, const shared_ptr<T>& y) noexcept; +template <class T> + bool operator>(const shared_ptr<T>& x, nullptr_t) noexcept; +template <class T> + bool operator>(nullptr_t, const shared_ptr<T>& y) noexcept; +template <class T> + bool operator>=(const shared_ptr<T>& x, nullptr_t) noexcept; +template <class T> + bool operator>=(nullptr_t, const shared_ptr<T>& y) noexcept; + +// shared_ptr specialized algorithms: +template<class T> void swap(shared_ptr<T>& a, shared_ptr<T>& b) noexcept; + +// shared_ptr casts: +template<class T, class U> + shared_ptr<T> static_pointer_cast(shared_ptr<U> const& r) noexcept; +template<class T, class U> + shared_ptr<T> dynamic_pointer_cast(shared_ptr<U> const& r) noexcept; +template<class T, class U> + shared_ptr<T> const_pointer_cast(shared_ptr<U> const& r) noexcept; + +// shared_ptr I/O: +template<class E, class T, class Y> + basic_ostream<E, T>& operator<< (basic_ostream<E, T>& os, shared_ptr<Y> const& p); + +// shared_ptr get_deleter: +template<class D, class T> D* get_deleter(shared_ptr<T> const& p) noexcept; + +template<class T, class... Args> + shared_ptr<T> make_shared(Args&&... args); +template<class T, class A, class... Args> + shared_ptr<T> allocate_shared(const A& a, Args&&... args); + +template<class T> +class weak_ptr +{ +public: + typedef T element_type; + + // constructors + constexpr weak_ptr() noexcept; + template<class Y> weak_ptr(shared_ptr<Y> const& r) noexcept; + weak_ptr(weak_ptr const& r) noexcept; + template<class Y> weak_ptr(weak_ptr<Y> const& r) noexcept; + weak_ptr(weak_ptr&& r) noexcept; // C++14 + template<class Y> weak_ptr(weak_ptr<Y>&& r) noexcept; // C++14 + + // destructor + ~weak_ptr(); + + // assignment + weak_ptr& operator=(weak_ptr const& r) noexcept; + template<class Y> weak_ptr& operator=(weak_ptr<Y> const& r) noexcept; + template<class Y> weak_ptr& operator=(shared_ptr<Y> const& r) noexcept; + weak_ptr& operator=(weak_ptr&& r) noexcept; // C++14 + template<class Y> weak_ptr& operator=(weak_ptr<Y>&& r) noexcept; // C++14 + + // modifiers + void swap(weak_ptr& r) noexcept; + void reset() noexcept; + + // observers + long use_count() const noexcept; + bool expired() const noexcept; + shared_ptr<T> lock() const noexcept; + template<class U> bool owner_before(shared_ptr<U> const& b) const noexcept; + template<class U> bool owner_before(weak_ptr<U> const& b) const noexcept; +}; + +template<class T> +weak_ptr(shared_ptr<T>) -> weak_ptr<T>; + +// weak_ptr specialized algorithms: +template<class T> void swap(weak_ptr<T>& a, weak_ptr<T>& b) noexcept; + +// class owner_less: +template<class T> struct owner_less; + +template<class T> +struct owner_less<shared_ptr<T> > + : binary_function<shared_ptr<T>, shared_ptr<T>, bool> +{ + typedef bool result_type; + bool operator()(shared_ptr<T> const&, shared_ptr<T> const&) const noexcept; + bool operator()(shared_ptr<T> const&, weak_ptr<T> const&) const noexcept; + bool operator()(weak_ptr<T> const&, shared_ptr<T> const&) const noexcept; +}; + +template<class T> +struct owner_less<weak_ptr<T> > + : binary_function<weak_ptr<T>, weak_ptr<T>, bool> +{ + typedef bool result_type; + bool operator()(weak_ptr<T> const&, weak_ptr<T> const&) const noexcept; + bool operator()(shared_ptr<T> const&, weak_ptr<T> const&) const noexcept; + bool operator()(weak_ptr<T> const&, shared_ptr<T> const&) const noexcept; +}; + +template <> // Added in C++14 +struct owner_less<void> +{ + template <class _Tp, class _Up> + bool operator()( shared_ptr<_Tp> const& __x, shared_ptr<_Up> const& __y) const noexcept; + template <class _Tp, class _Up> + bool operator()( shared_ptr<_Tp> const& __x, weak_ptr<_Up> const& __y) const noexcept; + template <class _Tp, class _Up> + bool operator()( weak_ptr<_Tp> const& __x, shared_ptr<_Up> const& __y) const noexcept; + template <class _Tp, class _Up> + bool operator()( weak_ptr<_Tp> const& __x, weak_ptr<_Up> const& __y) const noexcept; + + typedef void is_transparent; +}; + +template<class T> +class enable_shared_from_this +{ +protected: + constexpr enable_shared_from_this() noexcept; + enable_shared_from_this(enable_shared_from_this const&) noexcept; + enable_shared_from_this& operator=(enable_shared_from_this const&) noexcept; + ~enable_shared_from_this(); +public: + shared_ptr<T> shared_from_this(); + shared_ptr<T const> shared_from_this() const; +}; + +template<class T> + bool atomic_is_lock_free(const shared_ptr<T>* p); +template<class T> + shared_ptr<T> atomic_load(const shared_ptr<T>* p); +template<class T> + shared_ptr<T> atomic_load_explicit(const shared_ptr<T>* p, memory_order mo); +template<class T> + void atomic_store(shared_ptr<T>* p, shared_ptr<T> r); +template<class T> + void atomic_store_explicit(shared_ptr<T>* p, shared_ptr<T> r, memory_order mo); +template<class T> + shared_ptr<T> atomic_exchange(shared_ptr<T>* p, shared_ptr<T> r); +template<class T> + shared_ptr<T> + atomic_exchange_explicit(shared_ptr<T>* p, shared_ptr<T> r, memory_order mo); +template<class T> + bool + atomic_compare_exchange_weak(shared_ptr<T>* p, shared_ptr<T>* v, shared_ptr<T> w); +template<class T> + bool + atomic_compare_exchange_strong( shared_ptr<T>* p, shared_ptr<T>* v, shared_ptr<T> w); +template<class T> + bool + atomic_compare_exchange_weak_explicit(shared_ptr<T>* p, shared_ptr<T>* v, + shared_ptr<T> w, memory_order success, + memory_order failure); +template<class T> + bool + atomic_compare_exchange_strong_explicit(shared_ptr<T>* p, shared_ptr<T>* v, + shared_ptr<T> w, memory_order success, + memory_order failure); +// Hash support +template <class T> struct hash; +template <class T, class D> struct hash<unique_ptr<T, D> >; +template <class T> struct hash<shared_ptr<T> >; + +template <class T, class Alloc> + inline constexpr bool uses_allocator_v = uses_allocator<T, Alloc>::value; + +// Pointer safety +enum class pointer_safety { relaxed, preferred, strict }; // since C++11 +void declare_reachable(void *p); // since C++11 +template <class T> T *undeclare_reachable(T *p); // since C++11 +void declare_no_pointers(char *p, size_t n); // since C++11 +void undeclare_no_pointers(char *p, size_t n); // since C++11 +pointer_safety get_pointer_safety() noexcept; // since C++11 + +void* align(size_t alignment, size_t size, void*& ptr, size_t& space); + +} // std + +*/ + +#include <__config> +#include <__functional_base> +#include <__memory/addressof.h> +#include <__memory/allocation_guard.h> +#include <__memory/allocator.h> +#include <__memory/allocator_arg_t.h> +#include <__memory/allocator_traits.h> +#include <__memory/compressed_pair.h> +#include <__memory/construct_at.h> +#include <__memory/pointer_safety.h> +#include <__memory/pointer_traits.h> +#include <__memory/raw_storage_iterator.h> +#include <__memory/shared_ptr.h> +#include <__memory/temporary_buffer.h> +#include <__memory/uninitialized_algorithms.h> +#include <__memory/unique_ptr.h> +#include <__memory/uses_allocator.h> +#include <compare> +#include <cstddef> +#include <cstdint> +#include <cstring> +#include <iosfwd> +#include <iterator> +#include <new> +#include <stdexcept> +#include <tuple> +#include <type_traits> +#include <typeinfo> +#include <utility> +#include <version> + +#if _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR) +# include <__memory/auto_ptr.h> +#endif + +#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) +#pragma GCC system_header +#endif + +_LIBCPP_PUSH_MACROS +#include <__undef_macros> + + +_LIBCPP_BEGIN_NAMESPACE_STD + +template <class _Alloc, class _Ptr> +_LIBCPP_INLINE_VISIBILITY +void __construct_forward_with_exception_guarantees(_Alloc& __a, _Ptr __begin1, _Ptr __end1, _Ptr& __begin2) { + static_assert(__is_cpp17_move_insertable<_Alloc>::value, + "The specified type does not meet the requirements of Cpp17MoveInsertable"); + typedef allocator_traits<_Alloc> _Traits; + for (; __begin1 != __end1; ++__begin1, (void)++__begin2) { + _Traits::construct(__a, _VSTD::__to_address(__begin2), +#ifdef _LIBCPP_NO_EXCEPTIONS + _VSTD::move(*__begin1) +#else + _VSTD::move_if_noexcept(*__begin1) +#endif + ); + } +} + +template <class _Alloc, class _Tp, typename enable_if< + (__is_default_allocator<_Alloc>::value || !__has_construct<_Alloc, _Tp*, _Tp>::value) && + is_trivially_move_constructible<_Tp>::value +>::type> +_LIBCPP_INLINE_VISIBILITY +void __construct_forward_with_exception_guarantees(_Alloc&, _Tp* __begin1, _Tp* __end1, _Tp*& __begin2) { + ptrdiff_t _Np = __end1 - __begin1; + if (_Np > 0) { + _VSTD::memcpy(__begin2, __begin1, _Np * sizeof(_Tp)); + __begin2 += _Np; + } +} + +template <class _Alloc, class _Iter, class _Ptr> +_LIBCPP_INLINE_VISIBILITY +void __construct_range_forward(_Alloc& __a, _Iter __begin1, _Iter __end1, _Ptr& __begin2) { + typedef allocator_traits<_Alloc> _Traits; + for (; __begin1 != __end1; ++__begin1, (void) ++__begin2) { + _Traits::construct(__a, _VSTD::__to_address(__begin2), *__begin1); + } +} + +template <class _Alloc, class _Source, class _Dest, + class _RawSource = typename remove_const<_Source>::type, + class _RawDest = typename remove_const<_Dest>::type, + class = + typename enable_if< + is_trivially_copy_constructible<_Dest>::value && + is_same<_RawSource, _RawDest>::value && + (__is_default_allocator<_Alloc>::value || !__has_construct<_Alloc, _Dest*, _Source&>::value) + >::type> +_LIBCPP_INLINE_VISIBILITY +void __construct_range_forward(_Alloc&, _Source* __begin1, _Source* __end1, _Dest*& __begin2) { + ptrdiff_t _Np = __end1 - __begin1; + if (_Np > 0) { + _VSTD::memcpy(const_cast<_RawDest*>(__begin2), __begin1, _Np * sizeof(_Dest)); + __begin2 += _Np; + } +} + +template <class _Alloc, class _Ptr> +_LIBCPP_INLINE_VISIBILITY +void __construct_backward_with_exception_guarantees(_Alloc& __a, _Ptr __begin1, _Ptr __end1, _Ptr& __end2) { + static_assert(__is_cpp17_move_insertable<_Alloc>::value, + "The specified type does not meet the requirements of Cpp17MoveInsertable"); + typedef allocator_traits<_Alloc> _Traits; + while (__end1 != __begin1) { + _Traits::construct(__a, _VSTD::__to_address(__end2 - 1), +#ifdef _LIBCPP_NO_EXCEPTIONS + _VSTD::move(*--__end1) +#else + _VSTD::move_if_noexcept(*--__end1) +#endif + ); + --__end2; + } +} + +template <class _Alloc, class _Tp, class = typename enable_if< + (__is_default_allocator<_Alloc>::value || !__has_construct<_Alloc, _Tp*, _Tp>::value) && + is_trivially_move_constructible<_Tp>::value +>::type> +_LIBCPP_INLINE_VISIBILITY +void __construct_backward_with_exception_guarantees(_Alloc&, _Tp* __begin1, _Tp* __end1, _Tp*& __end2) { + ptrdiff_t _Np = __end1 - __begin1; + __end2 -= _Np; + if (_Np > 0) + _VSTD::memcpy(static_cast<void*>(__end2), static_cast<void const*>(__begin1), _Np * sizeof(_Tp)); +} + +struct __destruct_n +{ +private: + size_t __size_; + + template <class _Tp> + _LIBCPP_INLINE_VISIBILITY void __process(_Tp* __p, false_type) _NOEXCEPT + {for (size_t __i = 0; __i < __size_; ++__i, ++__p) __p->~_Tp();} + + template <class _Tp> + _LIBCPP_INLINE_VISIBILITY void __process(_Tp*, true_type) _NOEXCEPT + {} + + _LIBCPP_INLINE_VISIBILITY void __incr(false_type) _NOEXCEPT + {++__size_;} + _LIBCPP_INLINE_VISIBILITY void __incr(true_type) _NOEXCEPT + {} + + _LIBCPP_INLINE_VISIBILITY void __set(size_t __s, false_type) _NOEXCEPT + {__size_ = __s;} + _LIBCPP_INLINE_VISIBILITY void __set(size_t, true_type) _NOEXCEPT + {} +public: + _LIBCPP_INLINE_VISIBILITY explicit __destruct_n(size_t __s) _NOEXCEPT + : __size_(__s) {} + + template <class _Tp> + _LIBCPP_INLINE_VISIBILITY void __incr() _NOEXCEPT + {__incr(integral_constant<bool, is_trivially_destructible<_Tp>::value>());} + + template <class _Tp> + _LIBCPP_INLINE_VISIBILITY void __set(size_t __s, _Tp*) _NOEXCEPT + {__set(__s, integral_constant<bool, is_trivially_destructible<_Tp>::value>());} + + template <class _Tp> + _LIBCPP_INLINE_VISIBILITY void operator()(_Tp* __p) _NOEXCEPT + {__process(__p, integral_constant<bool, is_trivially_destructible<_Tp>::value>());} +}; + +_LIBCPP_FUNC_VIS void* align(size_t __align, size_t __sz, void*& __ptr, size_t& __space); + +// --- Helper for container swap -- +template <typename _Alloc> +_LIBCPP_INLINE_VISIBILITY +void __swap_allocator(_Alloc & __a1, _Alloc & __a2, true_type) +#if _LIBCPP_STD_VER >= 14 + _NOEXCEPT +#else + _NOEXCEPT_(__is_nothrow_swappable<_Alloc>::value) +#endif +{ + using _VSTD::swap; + swap(__a1, __a2); +} + +template <typename _Alloc> +inline _LIBCPP_INLINE_VISIBILITY +void __swap_allocator(_Alloc &, _Alloc &, false_type) _NOEXCEPT {} + +template <typename _Alloc> +inline _LIBCPP_INLINE_VISIBILITY +void __swap_allocator(_Alloc & __a1, _Alloc & __a2) +#if _LIBCPP_STD_VER >= 14 + _NOEXCEPT +#else + _NOEXCEPT_(__is_nothrow_swappable<_Alloc>::value) +#endif +{ + _VSTD::__swap_allocator(__a1, __a2, + integral_constant<bool, allocator_traits<_Alloc>::propagate_on_container_swap::value>()); +} + +template <typename _Alloc, typename _Traits=allocator_traits<_Alloc> > +struct __noexcept_move_assign_container : public integral_constant<bool, + _Traits::propagate_on_container_move_assignment::value +#if _LIBCPP_STD_VER > 14 + || _Traits::is_always_equal::value +#else + && is_nothrow_move_assignable<_Alloc>::value +#endif + > {}; + + +template <class _Tp, class _Alloc> +struct __temp_value { + typedef allocator_traits<_Alloc> _Traits; + + typename aligned_storage<sizeof(_Tp), _LIBCPP_ALIGNOF(_Tp)>::type __v; + _Alloc &__a; + + _Tp *__addr() { return reinterpret_cast<_Tp *>(addressof(__v)); } + _Tp & get() { return *__addr(); } + + template<class... _Args> + _LIBCPP_NO_CFI + __temp_value(_Alloc &__alloc, _Args&& ... __args) : __a(__alloc) { + _Traits::construct(__a, reinterpret_cast<_Tp*>(addressof(__v)), + _VSTD::forward<_Args>(__args)...); + } + + ~__temp_value() { _Traits::destroy(__a, __addr()); } + }; + +template<typename _Alloc, typename = void, typename = void> +struct __is_allocator : false_type {}; + +template<typename _Alloc> +struct __is_allocator<_Alloc, + typename __void_t<typename _Alloc::value_type>::type, + typename __void_t<decltype(declval<_Alloc&>().allocate(size_t(0)))>::type + > + : true_type {}; + +// __builtin_new_allocator -- A non-templated helper for allocating and +// deallocating memory using __builtin_operator_new and +// __builtin_operator_delete. It should be used in preference to +// `std::allocator<T>` to avoid additional instantiations. +struct __builtin_new_allocator { + struct __builtin_new_deleter { + typedef void* pointer_type; + + _LIBCPP_CONSTEXPR explicit __builtin_new_deleter(size_t __size, size_t __align) + : __size_(__size), __align_(__align) {} + + void operator()(void* p) const _NOEXCEPT { + _VSTD::__libcpp_deallocate(p, __size_, __align_); + } + + private: + size_t __size_; + size_t __align_; + }; + + typedef unique_ptr<void, __builtin_new_deleter> __holder_t; + + static __holder_t __allocate_bytes(size_t __s, size_t __align) { + return __holder_t(_VSTD::__libcpp_allocate(__s, __align), + __builtin_new_deleter(__s, __align)); + } + + static void __deallocate_bytes(void* __p, size_t __s, + size_t __align) _NOEXCEPT { + _VSTD::__libcpp_deallocate(__p, __s, __align); + } + + template <class _Tp> + _LIBCPP_NODEBUG _LIBCPP_ALWAYS_INLINE + static __holder_t __allocate_type(size_t __n) { + return __allocate_bytes(__n * sizeof(_Tp), _LIBCPP_ALIGNOF(_Tp)); + } + + template <class _Tp> + _LIBCPP_NODEBUG _LIBCPP_ALWAYS_INLINE + static void __deallocate_type(void* __p, size_t __n) _NOEXCEPT { + __deallocate_bytes(__p, __n * sizeof(_Tp), _LIBCPP_ALIGNOF(_Tp)); + } +}; + + +_LIBCPP_END_NAMESPACE_STD + +_LIBCPP_POP_MACROS + +#if defined(_LIBCPP_HAS_PARALLEL_ALGORITHMS) && _LIBCPP_STD_VER >= 17 +# include <__pstl_memory> +#endif + +#endif // _LIBCPP_MEMORY |