| // -*- C++ -*- |
| //===-------------------------- memory ------------------------------------===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is dual licensed under the MIT and the University of Illinois Open |
| // Source Licenses. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #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; |
| }; |
| |
| template <class T> constexpr T* to_address(T* p) noexcept; // C++20 |
| template <class Ptr> 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<U>::other | Alloc<T, Args...>; |
| template <class T> using rebind_traits = allocator_traits<rebind_alloc<T>>; |
| |
| static pointer allocate(allocator_type& a, size_type n); // [[nodiscard]] in C++20 |
| static pointer allocate(allocator_type& a, size_type n, const_void_pointer hint); // [[nodiscard]] in C++20 |
| |
| static void deallocate(allocator_type& a, pointer p, size_type n) noexcept; |
| |
| template <class T, class... Args> |
| static void construct(allocator_type& a, T* p, Args&&... args); |
| |
| template <class T> |
| static void destroy(allocator_type& a, T* p); |
| |
| static size_type max_size(const allocator_type& a); // noexcept in C++14 |
| |
| static allocator_type |
| select_on_container_copy_construction(const allocator_type& a); |
| }; |
| |
| template <> |
| class allocator<void> |
| { |
| 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; |
| typedef const T* const_pointer; |
| typedef typename add_lvalue_reference<T>::type reference; |
| typedef typename add_lvalue_reference<const T>::type const_reference; |
| typedef T value_type; |
| |
| template <class U> struct rebind {typedef allocator<U> other;}; |
| |
| 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(); |
| pointer address(reference x) const noexcept; |
| const_pointer address(const_reference x) const noexcept; |
| pointer allocate(size_type, allocator<void>::const_pointer hint = 0); |
| void deallocate(pointer p, size_type n) noexcept; |
| size_type max_size() const noexcept; |
| template<class U, class... Args> |
| void construct(U* p, Args&&... args); |
| template <class U> |
| void destroy(U* p); |
| }; |
| |
| template <class T, class U> |
| bool operator==(const allocator<T>&, const allocator<U>&) noexcept; |
| |
| template <class T, class U> |
| bool operator!=(const allocator<T>&, const allocator<U>&) noexcept; |
| |
| template <class OutputIterator, class T> |
| class raw_storage_iterator |
| : public iterator<output_iterator_tag, |
| T, // purposefully not C++03 |
| ptrdiff_t, // purposefully not C++03 |
| T*, // purposefully not C++03 |
| raw_storage_iterator&> // purposefully not C++03 |
| { |
| public: |
| 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> |
| void destroy_at(T* location); |
| |
| template <class ForwardIterator> |
| void destroy(ForwardIterator first, ForwardIterator last); |
| |
| template <class ForwardIterator, class Size> |
| ForwardIterator destroy_n(ForwardIterator first, Size n); |
| |
| 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 {}; // removed in C++17 |
| |
| template<class X> |
| class auto_ptr // 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; |
| }; |
| |
| // 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; |
| }; |
| |
| // 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 }; |
| void declare_reachable(void *p); |
| template <class T> T *undeclare_reachable(T *p); |
| void declare_no_pointers(char *p, size_t n); |
| void undeclare_no_pointers(char *p, size_t n); |
| pointer_safety get_pointer_safety() noexcept; |
| |
| void* align(size_t alignment, size_t size, void*& ptr, size_t& space); |
| |
| } // std |
| |
| */ |
| |
| #include <__config> |
| #include <type_traits> |
| #include <typeinfo> |
| #include <cstddef> |
| #include <cstdint> |
| #include <new> |
| #include <utility> |
| #include <limits> |
| #include <iterator> |
| #include <__functional_base> |
| #include <iosfwd> |
| #include <tuple> |
| #include <stdexcept> |
| #include <cstring> |
| #include <cassert> |
| #if !defined(_LIBCPP_HAS_NO_ATOMIC_HEADER) |
| # include <atomic> |
| #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 _ValueType> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _ValueType __libcpp_relaxed_load(_ValueType const* __value) { |
| #if !defined(_LIBCPP_HAS_NO_THREADS) && \ |
| defined(__ATOMIC_RELAXED) && \ |
| (__has_builtin(__atomic_load_n) || _GNUC_VER >= 407) |
| return __atomic_load_n(__value, __ATOMIC_RELAXED); |
| #else |
| return *__value; |
| #endif |
| } |
| |
| template <class _ValueType> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _ValueType __libcpp_acquire_load(_ValueType const* __value) { |
| #if !defined(_LIBCPP_HAS_NO_THREADS) && \ |
| defined(__ATOMIC_ACQUIRE) && \ |
| (__has_builtin(__atomic_load_n) || _GNUC_VER >= 407) |
| return __atomic_load_n(__value, __ATOMIC_ACQUIRE); |
| #else |
| return *__value; |
| #endif |
| } |
| |
| // addressof moved to <type_traits> |
| |
| template <class _Tp> class allocator; |
| |
| template <> |
| class _LIBCPP_TEMPLATE_VIS allocator<void> |
| { |
| public: |
| typedef void* pointer; |
| typedef const void* const_pointer; |
| typedef void value_type; |
| |
| template <class _Up> struct rebind {typedef allocator<_Up> other;}; |
| }; |
| |
| template <> |
| class _LIBCPP_TEMPLATE_VIS allocator<const void> |
| { |
| public: |
| typedef const void* pointer; |
| typedef const void* const_pointer; |
| typedef const void value_type; |
| |
| template <class _Up> struct rebind {typedef allocator<_Up> other;}; |
| }; |
| |
| // pointer_traits |
| |
| template <class _Tp, class = void> |
| struct __has_element_type : false_type {}; |
| |
| template <class _Tp> |
| struct __has_element_type<_Tp, |
| typename __void_t<typename _Tp::element_type>::type> : true_type {}; |
| |
| template <class _Ptr, bool = __has_element_type<_Ptr>::value> |
| struct __pointer_traits_element_type; |
| |
| template <class _Ptr> |
| struct __pointer_traits_element_type<_Ptr, true> |
| { |
| typedef typename _Ptr::element_type type; |
| }; |
| |
| #ifndef _LIBCPP_HAS_NO_VARIADICS |
| |
| template <template <class, class...> class _Sp, class _Tp, class ..._Args> |
| struct __pointer_traits_element_type<_Sp<_Tp, _Args...>, true> |
| { |
| typedef typename _Sp<_Tp, _Args...>::element_type type; |
| }; |
| |
| template <template <class, class...> class _Sp, class _Tp, class ..._Args> |
| struct __pointer_traits_element_type<_Sp<_Tp, _Args...>, false> |
| { |
| typedef _Tp type; |
| }; |
| |
| #else // _LIBCPP_HAS_NO_VARIADICS |
| |
| template <template <class> class _Sp, class _Tp> |
| struct __pointer_traits_element_type<_Sp<_Tp>, true> |
| { |
| typedef typename _Sp<_Tp>::element_type type; |
| }; |
| |
| template <template <class> class _Sp, class _Tp> |
| struct __pointer_traits_element_type<_Sp<_Tp>, false> |
| { |
| typedef _Tp type; |
| }; |
| |
| template <template <class, class> class _Sp, class _Tp, class _A0> |
| struct __pointer_traits_element_type<_Sp<_Tp, _A0>, true> |
| { |
| typedef typename _Sp<_Tp, _A0>::element_type type; |
| }; |
| |
| template <template <class, class> class _Sp, class _Tp, class _A0> |
| struct __pointer_traits_element_type<_Sp<_Tp, _A0>, false> |
| { |
| typedef _Tp type; |
| }; |
| |
| template <template <class, class, class> class _Sp, class _Tp, class _A0, class _A1> |
| struct __pointer_traits_element_type<_Sp<_Tp, _A0, _A1>, true> |
| { |
| typedef typename _Sp<_Tp, _A0, _A1>::element_type type; |
| }; |
| |
| template <template <class, class, class> class _Sp, class _Tp, class _A0, class _A1> |
| struct __pointer_traits_element_type<_Sp<_Tp, _A0, _A1>, false> |
| { |
| typedef _Tp type; |
| }; |
| |
| template <template <class, class, class, class> class _Sp, class _Tp, class _A0, |
| class _A1, class _A2> |
| struct __pointer_traits_element_type<_Sp<_Tp, _A0, _A1, _A2>, true> |
| { |
| typedef typename _Sp<_Tp, _A0, _A1, _A2>::element_type type; |
| }; |
| |
| template <template <class, class, class, class> class _Sp, class _Tp, class _A0, |
| class _A1, class _A2> |
| struct __pointer_traits_element_type<_Sp<_Tp, _A0, _A1, _A2>, false> |
| { |
| typedef _Tp type; |
| }; |
| |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class _Tp, class = void> |
| struct __has_difference_type : false_type {}; |
| |
| template <class _Tp> |
| struct __has_difference_type<_Tp, |
| typename __void_t<typename _Tp::difference_type>::type> : true_type {}; |
| |
| template <class _Ptr, bool = __has_difference_type<_Ptr>::value> |
| struct __pointer_traits_difference_type |
| { |
| typedef ptrdiff_t type; |
| }; |
| |
| template <class _Ptr> |
| struct __pointer_traits_difference_type<_Ptr, true> |
| { |
| typedef typename _Ptr::difference_type type; |
| }; |
| |
| template <class _Tp, class _Up> |
| struct __has_rebind |
| { |
| private: |
| struct __two {char __lx; char __lxx;}; |
| template <class _Xp> static __two __test(...); |
| template <class _Xp> static char __test(typename _Xp::template rebind<_Up>* = 0); |
| public: |
| static const bool value = sizeof(__test<_Tp>(0)) == 1; |
| }; |
| |
| template <class _Tp, class _Up, bool = __has_rebind<_Tp, _Up>::value> |
| struct __pointer_traits_rebind |
| { |
| #ifndef _LIBCPP_CXX03_LANG |
| typedef typename _Tp::template rebind<_Up> type; |
| #else |
| typedef typename _Tp::template rebind<_Up>::other type; |
| #endif |
| }; |
| |
| #ifndef _LIBCPP_HAS_NO_VARIADICS |
| |
| template <template <class, class...> class _Sp, class _Tp, class ..._Args, class _Up> |
| struct __pointer_traits_rebind<_Sp<_Tp, _Args...>, _Up, true> |
| { |
| #ifndef _LIBCPP_CXX03_LANG |
| typedef typename _Sp<_Tp, _Args...>::template rebind<_Up> type; |
| #else |
| typedef typename _Sp<_Tp, _Args...>::template rebind<_Up>::other type; |
| #endif |
| }; |
| |
| template <template <class, class...> class _Sp, class _Tp, class ..._Args, class _Up> |
| struct __pointer_traits_rebind<_Sp<_Tp, _Args...>, _Up, false> |
| { |
| typedef _Sp<_Up, _Args...> type; |
| }; |
| |
| #else // _LIBCPP_HAS_NO_VARIADICS |
| |
| template <template <class> class _Sp, class _Tp, class _Up> |
| struct __pointer_traits_rebind<_Sp<_Tp>, _Up, true> |
| { |
| #ifndef _LIBCPP_CXX03_LANG |
| typedef typename _Sp<_Tp>::template rebind<_Up> type; |
| #else |
| typedef typename _Sp<_Tp>::template rebind<_Up>::other type; |
| #endif |
| }; |
| |
| template <template <class> class _Sp, class _Tp, class _Up> |
| struct __pointer_traits_rebind<_Sp<_Tp>, _Up, false> |
| { |
| typedef _Sp<_Up> type; |
| }; |
| |
| template <template <class, class> class _Sp, class _Tp, class _A0, class _Up> |
| struct __pointer_traits_rebind<_Sp<_Tp, _A0>, _Up, true> |
| { |
| #ifndef _LIBCPP_CXX03_LANG |
| typedef typename _Sp<_Tp, _A0>::template rebind<_Up> type; |
| #else |
| typedef typename _Sp<_Tp, _A0>::template rebind<_Up>::other type; |
| #endif |
| }; |
| |
| template <template <class, class> class _Sp, class _Tp, class _A0, class _Up> |
| struct __pointer_traits_rebind<_Sp<_Tp, _A0>, _Up, false> |
| { |
| typedef _Sp<_Up, _A0> type; |
| }; |
| |
| template <template <class, class, class> class _Sp, class _Tp, class _A0, |
| class _A1, class _Up> |
| struct __pointer_traits_rebind<_Sp<_Tp, _A0, _A1>, _Up, true> |
| { |
| #ifndef _LIBCPP_CXX03_LANG |
| typedef typename _Sp<_Tp, _A0, _A1>::template rebind<_Up> type; |
| #else |
| typedef typename _Sp<_Tp, _A0, _A1>::template rebind<_Up>::other type; |
| #endif |
| }; |
| |
| template <template <class, class, class> class _Sp, class _Tp, class _A0, |
| class _A1, class _Up> |
| struct __pointer_traits_rebind<_Sp<_Tp, _A0, _A1>, _Up, false> |
| { |
| typedef _Sp<_Up, _A0, _A1> type; |
| }; |
| |
| template <template <class, class, class, class> class _Sp, class _Tp, class _A0, |
| class _A1, class _A2, class _Up> |
| struct __pointer_traits_rebind<_Sp<_Tp, _A0, _A1, _A2>, _Up, true> |
| { |
| #ifndef _LIBCPP_CXX03_LANG |
| typedef typename _Sp<_Tp, _A0, _A1, _A2>::template rebind<_Up> type; |
| #else |
| typedef typename _Sp<_Tp, _A0, _A1, _A2>::template rebind<_Up>::other type; |
| #endif |
| }; |
| |
| template <template <class, class, class, class> class _Sp, class _Tp, class _A0, |
| class _A1, class _A2, class _Up> |
| struct __pointer_traits_rebind<_Sp<_Tp, _A0, _A1, _A2>, _Up, false> |
| { |
| typedef _Sp<_Up, _A0, _A1, _A2> type; |
| }; |
| |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class _Ptr> |
| struct _LIBCPP_TEMPLATE_VIS pointer_traits |
| { |
| typedef _Ptr pointer; |
| typedef typename __pointer_traits_element_type<pointer>::type element_type; |
| typedef typename __pointer_traits_difference_type<pointer>::type difference_type; |
| |
| #ifndef _LIBCPP_CXX03_LANG |
| template <class _Up> using rebind = typename __pointer_traits_rebind<pointer, _Up>::type; |
| #else |
| template <class _Up> struct rebind |
| {typedef typename __pointer_traits_rebind<pointer, _Up>::type other;}; |
| #endif // _LIBCPP_CXX03_LANG |
| |
| private: |
| struct __nat {}; |
| public: |
| _LIBCPP_INLINE_VISIBILITY |
| static pointer pointer_to(typename conditional<is_void<element_type>::value, |
| __nat, element_type>::type& __r) |
| {return pointer::pointer_to(__r);} |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TEMPLATE_VIS pointer_traits<_Tp*> |
| { |
| typedef _Tp* pointer; |
| typedef _Tp element_type; |
| typedef ptrdiff_t difference_type; |
| |
| #ifndef _LIBCPP_CXX03_LANG |
| template <class _Up> using rebind = _Up*; |
| #else |
| template <class _Up> struct rebind {typedef _Up* other;}; |
| #endif |
| |
| private: |
| struct __nat {}; |
| public: |
| _LIBCPP_INLINE_VISIBILITY |
| static pointer pointer_to(typename conditional<is_void<element_type>::value, |
| __nat, element_type>::type& __r) _NOEXCEPT |
| {return _VSTD::addressof(__r);} |
| }; |
| |
| template <class _From, class _To> |
| struct __rebind_pointer { |
| #ifndef _LIBCPP_CXX03_LANG |
| typedef typename pointer_traits<_From>::template rebind<_To> type; |
| #else |
| typedef typename pointer_traits<_From>::template rebind<_To>::other type; |
| #endif |
| }; |
| |
| // allocator_traits |
| |
| template <class _Tp, class = void> |
| struct __has_pointer_type : false_type {}; |
| |
| template <class _Tp> |
| struct __has_pointer_type<_Tp, |
| typename __void_t<typename _Tp::pointer>::type> : true_type {}; |
| |
| namespace __pointer_type_imp |
| { |
| |
| template <class _Tp, class _Dp, bool = __has_pointer_type<_Dp>::value> |
| struct __pointer_type |
| { |
| typedef typename _Dp::pointer type; |
| }; |
| |
| template <class _Tp, class _Dp> |
| struct __pointer_type<_Tp, _Dp, false> |
| { |
| typedef _Tp* type; |
| }; |
| |
| } // __pointer_type_imp |
| |
| template <class _Tp, class _Dp> |
| struct __pointer_type |
| { |
| typedef typename __pointer_type_imp::__pointer_type<_Tp, typename remove_reference<_Dp>::type>::type type; |
| }; |
| |
| template <class _Tp, class = void> |
| struct __has_const_pointer : false_type {}; |
| |
| template <class _Tp> |
| struct __has_const_pointer<_Tp, |
| typename __void_t<typename _Tp::const_pointer>::type> : true_type {}; |
| |
| template <class _Tp, class _Ptr, class _Alloc, bool = __has_const_pointer<_Alloc>::value> |
| struct __const_pointer |
| { |
| typedef typename _Alloc::const_pointer type; |
| }; |
| |
| template <class _Tp, class _Ptr, class _Alloc> |
| struct __const_pointer<_Tp, _Ptr, _Alloc, false> |
| { |
| #ifndef _LIBCPP_CXX03_LANG |
| typedef typename pointer_traits<_Ptr>::template rebind<const _Tp> type; |
| #else |
| typedef typename pointer_traits<_Ptr>::template rebind<const _Tp>::other type; |
| #endif |
| }; |
| |
| template <class _Tp, class = void> |
| struct __has_void_pointer : false_type {}; |
| |
| template <class _Tp> |
| struct __has_void_pointer<_Tp, |
| typename __void_t<typename _Tp::void_pointer>::type> : true_type {}; |
| |
| template <class _Ptr, class _Alloc, bool = __has_void_pointer<_Alloc>::value> |
| struct __void_pointer |
| { |
| typedef typename _Alloc::void_pointer type; |
| }; |
| |
| template <class _Ptr, class _Alloc> |
| struct __void_pointer<_Ptr, _Alloc, false> |
| { |
| #ifndef _LIBCPP_CXX03_LANG |
| typedef typename pointer_traits<_Ptr>::template rebind<void> type; |
| #else |
| typedef typename pointer_traits<_Ptr>::template rebind<void>::other type; |
| #endif |
| }; |
| |
| template <class _Tp, class = void> |
| struct __has_const_void_pointer : false_type {}; |
| |
| template <class _Tp> |
| struct __has_const_void_pointer<_Tp, |
| typename __void_t<typename _Tp::const_void_pointer>::type> : true_type {}; |
| |
| template <class _Ptr, class _Alloc, bool = __has_const_void_pointer<_Alloc>::value> |
| struct __const_void_pointer |
| { |
| typedef typename _Alloc::const_void_pointer type; |
| }; |
| |
| template <class _Ptr, class _Alloc> |
| struct __const_void_pointer<_Ptr, _Alloc, false> |
| { |
| #ifndef _LIBCPP_CXX03_LANG |
| typedef typename pointer_traits<_Ptr>::template rebind<const void> type; |
| #else |
| typedef typename pointer_traits<_Ptr>::template rebind<const void>::other type; |
| #endif |
| }; |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR |
| _Tp* |
| __to_raw_pointer(_Tp* __p) _NOEXCEPT |
| { |
| return __p; |
| } |
| |
| #if _LIBCPP_STD_VER <= 17 |
| template <class _Pointer> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename pointer_traits<_Pointer>::element_type* |
| __to_raw_pointer(_Pointer __p) _NOEXCEPT |
| { |
| return _VSTD::__to_raw_pointer(__p.operator->()); |
| } |
| #else |
| template <class _Pointer> |
| inline _LIBCPP_INLINE_VISIBILITY |
| auto |
| __to_raw_pointer(const _Pointer& __p) _NOEXCEPT |
| -> decltype(pointer_traits<_Pointer>::to_address(__p)) |
| { |
| return pointer_traits<_Pointer>::to_address(__p); |
| } |
| |
| template <class _Pointer, class... _None> |
| inline _LIBCPP_INLINE_VISIBILITY |
| auto |
| __to_raw_pointer(const _Pointer& __p, _None...) _NOEXCEPT |
| { |
| return _VSTD::__to_raw_pointer(__p.operator->()); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY constexpr |
| _Tp* |
| to_address(_Tp* __p) _NOEXCEPT |
| { |
| static_assert(!is_function_v<_Tp>, "_Tp is a function type"); |
| return __p; |
| } |
| |
| template <class _Pointer> |
| inline _LIBCPP_INLINE_VISIBILITY |
| auto |
| to_address(const _Pointer& __p) _NOEXCEPT |
| { |
| return _VSTD::__to_raw_pointer(__p); |
| } |
| #endif |
| |
| template <class _Tp, class = void> |
| struct __has_size_type : false_type {}; |
| |
| template <class _Tp> |
| struct __has_size_type<_Tp, |
| typename __void_t<typename _Tp::size_type>::type> : true_type {}; |
| |
| template <class _Alloc, class _DiffType, bool = __has_size_type<_Alloc>::value> |
| struct __size_type |
| { |
| typedef typename make_unsigned<_DiffType>::type type; |
| }; |
| |
| template <class _Alloc, class _DiffType> |
| struct __size_type<_Alloc, _DiffType, true> |
| { |
| typedef typename _Alloc::size_type type; |
| }; |
| |
| template <class _Tp, class = void> |
| struct __has_propagate_on_container_copy_assignment : false_type {}; |
| |
| template <class _Tp> |
| struct __has_propagate_on_container_copy_assignment<_Tp, |
| typename __void_t<typename _Tp::propagate_on_container_copy_assignment>::type> |
| : true_type {}; |
| |
| template <class _Alloc, bool = __has_propagate_on_container_copy_assignment<_Alloc>::value> |
| struct __propagate_on_container_copy_assignment |
| { |
| typedef false_type type; |
| }; |
| |
| template <class _Alloc> |
| struct __propagate_on_container_copy_assignment<_Alloc, true> |
| { |
| typedef typename _Alloc::propagate_on_container_copy_assignment type; |
| }; |
| |
| template <class _Tp, class = void> |
| struct __has_propagate_on_container_move_assignment : false_type {}; |
| |
| template <class _Tp> |
| struct __has_propagate_on_container_move_assignment<_Tp, |
| typename __void_t<typename _Tp::propagate_on_container_move_assignment>::type> |
| : true_type {}; |
| |
| template <class _Alloc, bool = __has_propagate_on_container_move_assignment<_Alloc>::value> |
| struct __propagate_on_container_move_assignment |
| { |
| typedef false_type type; |
| }; |
| |
| template <class _Alloc> |
| struct __propagate_on_container_move_assignment<_Alloc, true> |
| { |
| typedef typename _Alloc::propagate_on_container_move_assignment type; |
| }; |
| |
| template <class _Tp, class = void> |
| struct __has_propagate_on_container_swap : false_type {}; |
| |
| template <class _Tp> |
| struct __has_propagate_on_container_swap<_Tp, |
| typename __void_t<typename _Tp::propagate_on_container_swap>::type> |
| : true_type {}; |
| |
| template <class _Alloc, bool = __has_propagate_on_container_swap<_Alloc>::value> |
| struct __propagate_on_container_swap |
| { |
| typedef false_type type; |
| }; |
| |
| template <class _Alloc> |
| struct __propagate_on_container_swap<_Alloc, true> |
| { |
| typedef typename _Alloc::propagate_on_container_swap type; |
| }; |
| |
| template <class _Tp, class = void> |
| struct __has_is_always_equal : false_type {}; |
| |
| template <class _Tp> |
| struct __has_is_always_equal<_Tp, |
| typename __void_t<typename _Tp::is_always_equal>::type> |
| : true_type {}; |
| |
| template <class _Alloc, bool = __has_is_always_equal<_Alloc>::value> |
| struct __is_always_equal |
| { |
| typedef typename _VSTD::is_empty<_Alloc>::type type; |
| }; |
| |
| template <class _Alloc> |
| struct __is_always_equal<_Alloc, true> |
| { |
| typedef typename _Alloc::is_always_equal type; |
| }; |
| |
| template <class _Tp, class _Up, bool = __has_rebind<_Tp, _Up>::value> |
| struct __has_rebind_other |
| { |
| private: |
| struct __two {char __lx; char __lxx;}; |
| template <class _Xp> static __two __test(...); |
| template <class _Xp> static char __test(typename _Xp::template rebind<_Up>::other* = 0); |
| public: |
| static const bool value = sizeof(__test<_Tp>(0)) == 1; |
| }; |
| |
| template <class _Tp, class _Up> |
| struct __has_rebind_other<_Tp, _Up, false> |
| { |
| static const bool value = false; |
| }; |
| |
| template <class _Tp, class _Up, bool = __has_rebind_other<_Tp, _Up>::value> |
| struct __allocator_traits_rebind |
| { |
| typedef typename _Tp::template rebind<_Up>::other type; |
| }; |
| |
| #ifndef _LIBCPP_HAS_NO_VARIADICS |
| |
| template <template <class, class...> class _Alloc, class _Tp, class ..._Args, class _Up> |
| struct __allocator_traits_rebind<_Alloc<_Tp, _Args...>, _Up, true> |
| { |
| typedef typename _Alloc<_Tp, _Args...>::template rebind<_Up>::other type; |
| }; |
| |
| template <template <class, class...> class _Alloc, class _Tp, class ..._Args, class _Up> |
| struct __allocator_traits_rebind<_Alloc<_Tp, _Args...>, _Up, false> |
| { |
| typedef _Alloc<_Up, _Args...> type; |
| }; |
| |
| #else // _LIBCPP_HAS_NO_VARIADICS |
| |
| template <template <class> class _Alloc, class _Tp, class _Up> |
| struct __allocator_traits_rebind<_Alloc<_Tp>, _Up, true> |
| { |
| typedef typename _Alloc<_Tp>::template rebind<_Up>::other type; |
| }; |
| |
| template <template <class> class _Alloc, class _Tp, class _Up> |
| struct __allocator_traits_rebind<_Alloc<_Tp>, _Up, false> |
| { |
| typedef _Alloc<_Up> type; |
| }; |
| |
| template <template <class, class> class _Alloc, class _Tp, class _A0, class _Up> |
| struct __allocator_traits_rebind<_Alloc<_Tp, _A0>, _Up, true> |
| { |
| typedef typename _Alloc<_Tp, _A0>::template rebind<_Up>::other type; |
| }; |
| |
| template <template <class, class> class _Alloc, class _Tp, class _A0, class _Up> |
| struct __allocator_traits_rebind<_Alloc<_Tp, _A0>, _Up, false> |
| { |
| typedef _Alloc<_Up, _A0> type; |
| }; |
| |
| template <template <class, class, class> class _Alloc, class _Tp, class _A0, |
| class _A1, class _Up> |
| struct __allocator_traits_rebind<_Alloc<_Tp, _A0, _A1>, _Up, true> |
| { |
| typedef typename _Alloc<_Tp, _A0, _A1>::template rebind<_Up>::other type; |
| }; |
| |
| template <template <class, class, class> class _Alloc, class _Tp, class _A0, |
| class _A1, class _Up> |
| struct __allocator_traits_rebind<_Alloc<_Tp, _A0, _A1>, _Up, false> |
| { |
| typedef _Alloc<_Up, _A0, _A1> type; |
| }; |
| |
| template <template <class, class, class, class> class _Alloc, class _Tp, class _A0, |
| class _A1, class _A2, class _Up> |
| struct __allocator_traits_rebind<_Alloc<_Tp, _A0, _A1, _A2>, _Up, true> |
| { |
| typedef typename _Alloc<_Tp, _A0, _A1, _A2>::template rebind<_Up>::other type; |
| }; |
| |
| template <template <class, class, class, class> class _Alloc, class _Tp, class _A0, |
| class _A1, class _A2, class _Up> |
| struct __allocator_traits_rebind<_Alloc<_Tp, _A0, _A1, _A2>, _Up, false> |
| { |
| typedef _Alloc<_Up, _A0, _A1, _A2> type; |
| }; |
| |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| |
| #ifndef _LIBCPP_CXX03_LANG |
| |
| template <class _Alloc, class _SizeType, class _ConstVoidPtr> |
| auto |
| __has_allocate_hint_test(_Alloc&& __a, _SizeType&& __sz, _ConstVoidPtr&& __p) |
| -> decltype((void)__a.allocate(__sz, __p), true_type()); |
| |
| template <class _Alloc, class _SizeType, class _ConstVoidPtr> |
| auto |
| __has_allocate_hint_test(const _Alloc& __a, _SizeType&& __sz, _ConstVoidPtr&& __p) |
| -> false_type; |
| |
| template <class _Alloc, class _SizeType, class _ConstVoidPtr> |
| struct __has_allocate_hint |
| : integral_constant<bool, |
| is_same< |
| decltype(_VSTD::__has_allocate_hint_test(declval<_Alloc>(), |
| declval<_SizeType>(), |
| declval<_ConstVoidPtr>())), |
| true_type>::value> |
| { |
| }; |
| |
| #else // _LIBCPP_CXX03_LANG |
| |
| template <class _Alloc, class _SizeType, class _ConstVoidPtr> |
| struct __has_allocate_hint |
| : true_type |
| { |
| }; |
| |
| #endif // _LIBCPP_CXX03_LANG |
| |
| #if !defined(_LIBCPP_CXX03_LANG) |
| |
| template <class _Alloc, class _Tp, class ..._Args> |
| decltype(_VSTD::declval<_Alloc>().construct(_VSTD::declval<_Tp*>(), |
| _VSTD::declval<_Args>()...), |
| true_type()) |
| __has_construct_test(_Alloc&& __a, _Tp* __p, _Args&& ...__args); |
| |
| template <class _Alloc, class _Pointer, class ..._Args> |
| false_type |
| __has_construct_test(const _Alloc& __a, _Pointer&& __p, _Args&& ...__args); |
| |
| template <class _Alloc, class _Pointer, class ..._Args> |
| struct __has_construct |
| : integral_constant<bool, |
| is_same< |
| decltype(_VSTD::__has_construct_test(declval<_Alloc>(), |
| declval<_Pointer>(), |
| declval<_Args>()...)), |
| true_type>::value> |
| { |
| }; |
| |
| template <class _Alloc, class _Pointer> |
| auto |
| __has_destroy_test(_Alloc&& __a, _Pointer&& __p) |
| -> decltype(__a.destroy(__p), true_type()); |
| |
| template <class _Alloc, class _Pointer> |
| auto |
| __has_destroy_test(const _Alloc& __a, _Pointer&& __p) |
| -> false_type; |
| |
| template <class _Alloc, class _Pointer> |
| struct __has_destroy |
| : integral_constant<bool, |
| is_same< |
| decltype(_VSTD::__has_destroy_test(declval<_Alloc>(), |
| declval<_Pointer>())), |
| true_type>::value> |
| { |
| }; |
| |
| template <class _Alloc> |
| auto |
| __has_max_size_test(_Alloc&& __a) |
| -> decltype(__a.max_size(), true_type()); |
| |
| template <class _Alloc> |
| auto |
| __has_max_size_test(const volatile _Alloc& __a) |
| -> false_type; |
| |
| template <class _Alloc> |
| struct __has_max_size |
| : integral_constant<bool, |
| is_same< |
| decltype(_VSTD::__has_max_size_test(declval<_Alloc&>())), |
| true_type>::value> |
| { |
| }; |
| |
| template <class _Alloc> |
| auto |
| __has_select_on_container_copy_construction_test(_Alloc&& __a) |
| -> decltype(__a.select_on_container_copy_construction(), true_type()); |
| |
| template <class _Alloc> |
| auto |
| __has_select_on_container_copy_construction_test(const volatile _Alloc& __a) |
| -> false_type; |
| |
| template <class _Alloc> |
| struct __has_select_on_container_copy_construction |
| : integral_constant<bool, |
| is_same< |
| decltype(_VSTD::__has_select_on_container_copy_construction_test(declval<_Alloc&>())), |
| true_type>::value> |
| { |
| }; |
| |
| #else // _LIBCPP_CXX03_LANG |
| |
| #ifndef _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class _Alloc, class _Pointer, class ..._Args> |
| struct __has_construct |
| : false_type |
| { |
| }; |
| |
| #else // _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class _Alloc, class _Pointer, class _Args> |
| struct __has_construct |
| : false_type |
| { |
| }; |
| |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class _Alloc, class _Pointer> |
| struct __has_destroy |
| : false_type |
| { |
| }; |
| |
| template <class _Alloc> |
| struct __has_max_size |
| : true_type |
| { |
| }; |
| |
| template <class _Alloc> |
| struct __has_select_on_container_copy_construction |
| : false_type |
| { |
| }; |
| |
| #endif // _LIBCPP_CXX03_LANG |
| |
| template <class _Alloc, class _Ptr, bool = __has_difference_type<_Alloc>::value> |
| struct __alloc_traits_difference_type |
| { |
| typedef typename pointer_traits<_Ptr>::difference_type type; |
| }; |
| |
| template <class _Alloc, class _Ptr> |
| struct __alloc_traits_difference_type<_Alloc, _Ptr, true> |
| { |
| typedef typename _Alloc::difference_type type; |
| }; |
| |
| template <class _Alloc> |
| struct _LIBCPP_TEMPLATE_VIS allocator_traits |
| { |
| typedef _Alloc allocator_type; |
| typedef typename allocator_type::value_type value_type; |
| |
| typedef typename __pointer_type<value_type, allocator_type>::type pointer; |
| typedef typename __const_pointer<value_type, pointer, allocator_type>::type const_pointer; |
| typedef typename __void_pointer<pointer, allocator_type>::type void_pointer; |
| typedef typename __const_void_pointer<pointer, allocator_type>::type const_void_pointer; |
| |
| typedef typename __alloc_traits_difference_type<allocator_type, pointer>::type difference_type; |
| typedef typename __size_type<allocator_type, difference_type>::type size_type; |
| |
| typedef typename __propagate_on_container_copy_assignment<allocator_type>::type |
| propagate_on_container_copy_assignment; |
| typedef typename __propagate_on_container_move_assignment<allocator_type>::type |
| propagate_on_container_move_assignment; |
| typedef typename __propagate_on_container_swap<allocator_type>::type |
| propagate_on_container_swap; |
| typedef typename __is_always_equal<allocator_type>::type |
| is_always_equal; |
| |
| #ifndef _LIBCPP_CXX03_LANG |
| template <class _Tp> using rebind_alloc = |
| typename __allocator_traits_rebind<allocator_type, _Tp>::type; |
| template <class _Tp> using rebind_traits = allocator_traits<rebind_alloc<_Tp>>; |
| #else // _LIBCPP_CXX03_LANG |
| template <class _Tp> struct rebind_alloc |
| {typedef typename __allocator_traits_rebind<allocator_type, _Tp>::type other;}; |
| template <class _Tp> struct rebind_traits |
| {typedef allocator_traits<typename rebind_alloc<_Tp>::other> other;}; |
| #endif // _LIBCPP_CXX03_LANG |
| |
| _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY |
| static pointer allocate(allocator_type& __a, size_type __n) |
| {return __a.allocate(__n);} |
| _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY |
| static pointer allocate(allocator_type& __a, size_type __n, const_void_pointer __hint) |
| {return __allocate(__a, __n, __hint, |
| __has_allocate_hint<allocator_type, size_type, const_void_pointer>());} |
| |
| _LIBCPP_INLINE_VISIBILITY |
| static void deallocate(allocator_type& __a, pointer __p, size_type __n) _NOEXCEPT |
| {__a.deallocate(__p, __n);} |
| |
| #ifndef _LIBCPP_HAS_NO_VARIADICS |
| template <class _Tp, class... _Args> |
| _LIBCPP_INLINE_VISIBILITY |
| static void construct(allocator_type& __a, _Tp* __p, _Args&&... __args) |
| {__construct(__has_construct<allocator_type, _Tp*, _Args...>(), |
| __a, __p, _VSTD::forward<_Args>(__args)...);} |
| #else // _LIBCPP_HAS_NO_VARIADICS |
| template <class _Tp> |
| _LIBCPP_INLINE_VISIBILITY |
| static void construct(allocator_type&, _Tp* __p) |
| { |
| ::new ((void*)__p) _Tp(); |
| } |
| template <class _Tp, class _A0> |
| _LIBCPP_INLINE_VISIBILITY |
| static void construct(allocator_type&, _Tp* __p, const _A0& __a0) |
| { |
| ::new ((void*)__p) _Tp(__a0); |
| } |
| template <class _Tp, class _A0, class _A1> |
| _LIBCPP_INLINE_VISIBILITY |
| static void construct(allocator_type&, _Tp* __p, const _A0& __a0, |
| const _A1& __a1) |
| { |
| ::new ((void*)__p) _Tp(__a0, __a1); |
| } |
| template <class _Tp, class _A0, class _A1, class _A2> |
| _LIBCPP_INLINE_VISIBILITY |
| static void construct(allocator_type&, _Tp* __p, const _A0& __a0, |
| const _A1& __a1, const _A2& __a2) |
| { |
| ::new ((void*)__p) _Tp(__a0, __a1, __a2); |
| } |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class _Tp> |
| _LIBCPP_INLINE_VISIBILITY |
| static void destroy(allocator_type& __a, _Tp* __p) |
| {__destroy(__has_destroy<allocator_type, _Tp*>(), __a, __p);} |
| |
| _LIBCPP_INLINE_VISIBILITY |
| static size_type max_size(const allocator_type& __a) _NOEXCEPT |
| {return __max_size(__has_max_size<const allocator_type>(), __a);} |
| |
| _LIBCPP_INLINE_VISIBILITY |
| static allocator_type |
| select_on_container_copy_construction(const allocator_type& __a) |
| {return __select_on_container_copy_construction( |
| __has_select_on_container_copy_construction<const allocator_type>(), |
| __a);} |
| |
| template <class _Ptr> |
| _LIBCPP_INLINE_VISIBILITY |
| static |
| void |
| __construct_forward(allocator_type& __a, _Ptr __begin1, _Ptr __end1, _Ptr& __begin2) |
| { |
| for (; __begin1 != __end1; ++__begin1, ++__begin2) |
| construct(__a, _VSTD::__to_raw_pointer(__begin2), _VSTD::move_if_noexcept(*__begin1)); |
| } |
| |
| template <class _Tp> |
| _LIBCPP_INLINE_VISIBILITY |
| static |
| typename enable_if |
| < |
| (is_same<allocator_type, allocator<_Tp> >::value |
| || !__has_construct<allocator_type, _Tp*, _Tp>::value) && |
| is_trivially_move_constructible<_Tp>::value, |
| void |
| >::type |
| __construct_forward(allocator_type&, _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 _Iter, class _Ptr> |
| _LIBCPP_INLINE_VISIBILITY |
| static |
| void |
| __construct_range_forward(allocator_type& __a, _Iter __begin1, _Iter __end1, _Ptr& __begin2) |
| { |
| for (; __begin1 != __end1; ++__begin1, (void) ++__begin2) |
| construct(__a, _VSTD::__to_raw_pointer(__begin2), *__begin1); |
| } |
| |
| template <class _Tp> |
| _LIBCPP_INLINE_VISIBILITY |
| static |
| typename enable_if |
| < |
| (is_same<allocator_type, allocator<_Tp> >::value |
| || !__has_construct<allocator_type, _Tp*, _Tp>::value) && |
| is_trivially_move_constructible<_Tp>::value, |
| void |
| >::type |
| __construct_range_forward(allocator_type&, _Tp* __begin1, _Tp* __end1, _Tp*& __begin2) |
| { |
| typedef typename remove_const<_Tp>::type _Vp; |
| ptrdiff_t _Np = __end1 - __begin1; |
| if (_Np > 0) |
| { |
| _VSTD::memcpy(const_cast<_Vp*>(__begin2), __begin1, _Np * sizeof(_Tp)); |
| __begin2 += _Np; |
| } |
| } |
| |
| template <class _Ptr> |
| _LIBCPP_INLINE_VISIBILITY |
| static |
| void |
| __construct_backward(allocator_type& __a, _Ptr __begin1, _Ptr __end1, _Ptr& __end2) |
| { |
| while (__end1 != __begin1) |
| { |
| construct(__a, _VSTD::__to_raw_pointer(__end2-1), _VSTD::move_if_noexcept(*--__end1)); |
| --__end2; |
| } |
| } |
| |
| template <class _Tp> |
| _LIBCPP_INLINE_VISIBILITY |
| static |
| typename enable_if |
| < |
| (is_same<allocator_type, allocator<_Tp> >::value |
| || !__has_construct<allocator_type, _Tp*, _Tp>::value) && |
| is_trivially_move_constructible<_Tp>::value, |
| void |
| >::type |
| __construct_backward(allocator_type&, _Tp* __begin1, _Tp* __end1, _Tp*& __end2) |
| { |
| ptrdiff_t _Np = __end1 - __begin1; |
| __end2 -= _Np; |
| if (_Np > 0) |
| _VSTD::memcpy(__end2, __begin1, _Np * sizeof(_Tp)); |
| } |
| |
| private: |
| |
| _LIBCPP_INLINE_VISIBILITY |
| static pointer __allocate(allocator_type& __a, size_type __n, |
| const_void_pointer __hint, true_type) |
| {return __a.allocate(__n, __hint);} |
| _LIBCPP_INLINE_VISIBILITY |
| static pointer __allocate(allocator_type& __a, size_type __n, |
| const_void_pointer, false_type) |
| {return __a.allocate(__n);} |
| |
| #ifndef _LIBCPP_HAS_NO_VARIADICS |
| template <class _Tp, class... _Args> |
| _LIBCPP_INLINE_VISIBILITY |
| static void __construct(true_type, allocator_type& __a, _Tp* __p, _Args&&... __args) |
| {__a.construct(__p, _VSTD::forward<_Args>(__args)...);} |
| template <class _Tp, class... _Args> |
| _LIBCPP_INLINE_VISIBILITY |
| static void __construct(false_type, allocator_type&, _Tp* __p, _Args&&... __args) |
| { |
| ::new ((void*)__p) _Tp(_VSTD::forward<_Args>(__args)...); |
| } |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| |
| template <class _Tp> |
| _LIBCPP_INLINE_VISIBILITY |
| static void __destroy(true_type, allocator_type& __a, _Tp* __p) |
| {__a.destroy(__p);} |
| template <class _Tp> |
| _LIBCPP_INLINE_VISIBILITY |
| static void __destroy(false_type, allocator_type&, _Tp* __p) |
| { |
| __p->~_Tp(); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| static size_type __max_size(true_type, const allocator_type& __a) _NOEXCEPT |
| {return __a.max_size();} |
| _LIBCPP_INLINE_VISIBILITY |
| static size_type __max_size(false_type, const allocator_type&) _NOEXCEPT |
| {return numeric_limits<size_type>::max() / sizeof(value_type);} |
| |
| _LIBCPP_INLINE_VISIBILITY |
| static allocator_type |
| __select_on_container_copy_construction(true_type, const allocator_type& __a) |
| {return __a.select_on_container_copy_construction();} |
| _LIBCPP_INLINE_VISIBILITY |
| static allocator_type |
| __select_on_container_copy_construction(false_type, const allocator_type& __a) |
| {return __a;} |
| }; |
| |
| template <class _Traits, class _Tp> |
| struct __rebind_alloc_helper |
| { |
| #ifndef _LIBCPP_CXX03_LANG |
| typedef typename _Traits::template rebind_alloc<_Tp> type; |
| #else |
| typedef typename _Traits::template rebind_alloc<_Tp>::other type; |
| #endif |
| }; |
| |
| // allocator |
| |
| template <class _Tp> |
| class _LIBCPP_TEMPLATE_VIS allocator |
| { |
| public: |
| typedef size_t size_type; |
| typedef ptrdiff_t difference_type; |
| typedef _Tp* pointer; |
| typedef const _Tp* const_pointer; |
| typedef _Tp& reference; |
| typedef const _Tp& const_reference; |
| typedef _Tp value_type; |
| |
| typedef true_type propagate_on_container_move_assignment; |
| typedef true_type is_always_equal; |
| |
| template <class _Up> struct rebind {typedef allocator<_Up> other;}; |
| |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 |
| allocator() _NOEXCEPT {} |
| |
| template <class _Up> |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 |
| allocator(const allocator<_Up>&) _NOEXCEPT {} |
| |
| _LIBCPP_INLINE_VISIBILITY pointer address(reference __x) const _NOEXCEPT |
| {return _VSTD::addressof(__x);} |
| _LIBCPP_INLINE_VISIBILITY const_pointer address(const_reference __x) const _NOEXCEPT |
| {return _VSTD::addressof(__x);} |
| _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY |
| pointer allocate(size_type __n, allocator<void>::const_pointer = 0) |
| { |
| if (__n > max_size()) |
| __throw_length_error("allocator<T>::allocate(size_t n)" |
| " 'n' exceeds maximum supported size"); |
| return static_cast<pointer>(_VSTD::__libcpp_allocate(__n * sizeof(_Tp), __alignof(_Tp))); |
| } |
| _LIBCPP_INLINE_VISIBILITY void deallocate(pointer __p, size_type) _NOEXCEPT |
| {_VSTD::__libcpp_deallocate((void*)__p, __alignof(_Tp));} |
| _LIBCPP_INLINE_VISIBILITY size_type max_size() const _NOEXCEPT |
| {return size_type(~0) / sizeof(_Tp);} |
| #if !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_VARIADICS) |
| template <class _Up, class... _Args> |
| _LIBCPP_INLINE_VISIBILITY |
| void |
| construct(_Up* __p, _Args&&... __args) |
| { |
| ::new((void*)__p) _Up(_VSTD::forward<_Args>(__args)...); |
| } |
| #else // !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_VARIADICS) |
| _LIBCPP_INLINE_VISIBILITY |
| void |
| construct(pointer __p) |
| { |
| ::new((void*)__p) _Tp(); |
| } |
| # if defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) |
| |
| template <class _A0> |
| _LIBCPP_INLINE_VISIBILITY |
| void |
| construct(pointer __p, _A0& __a0) |
| { |
| ::new((void*)__p) _Tp(__a0); |
| } |
| template <class _A0> |
| _LIBCPP_INLINE_VISIBILITY |
| void |
| construct(pointer __p, const _A0& __a0) |
| { |
| ::new((void*)__p) _Tp(__a0); |
| } |
| # endif // defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) |
| template <class _A0, class _A1> |
| _LIBCPP_INLINE_VISIBILITY |
| void |
| construct(pointer __p, _A0& __a0, _A1& __a1) |
| { |
| ::new((void*)__p) _Tp(__a0, __a1); |
| } |
| template <class _A0, class _A1> |
| _LIBCPP_INLINE_VISIBILITY |
| void |
| construct(pointer __p, const _A0& __a0, _A1& __a1) |
| { |
| ::new((void*)__p) _Tp(__a0, __a1); |
| } |
| template <class _A0, class _A1> |
| _LIBCPP_INLINE_VISIBILITY |
| void |
| construct(pointer __p, _A0& __a0, const _A1& __a1) |
| { |
| ::new((void*)__p) _Tp(__a0, __a1); |
| } |
| template <class _A0, class _A1> |
| _LIBCPP_INLINE_VISIBILITY |
| void |
| construct(pointer __p, const _A0& __a0, const _A1& __a1) |
| { |
| ::new((void*)__p) _Tp(__a0, __a1); |
| } |
| #endif // !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_VARIADICS) |
| _LIBCPP_INLINE_VISIBILITY void destroy(pointer __p) {__p->~_Tp();} |
| }; |
| |
| template <class _Tp> |
| class _LIBCPP_TEMPLATE_VIS allocator<const _Tp> |
| { |
| public: |
| typedef size_t size_type; |
| typedef ptrdiff_t difference_type; |
| typedef const _Tp* pointer; |
| typedef const _Tp* const_pointer; |
| typedef const _Tp& reference; |
| typedef const _Tp& const_reference; |
| typedef const _Tp value_type; |
| |
| typedef true_type propagate_on_container_move_assignment; |
| typedef true_type is_always_equal; |
| |
| template <class _Up> struct rebind {typedef allocator<_Up> other;}; |
| |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 |
| allocator() _NOEXCEPT {} |
| |
| template <class _Up> |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 |
| allocator(const allocator<_Up>&) _NOEXCEPT {} |
| |
| _LIBCPP_INLINE_VISIBILITY const_pointer address(const_reference __x) const _NOEXCEPT |
| {return _VSTD::addressof(__x);} |
| _LIBCPP_INLINE_VISIBILITY pointer allocate(size_type __n, allocator<void>::const_pointer = 0) |
| { |
| if (__n > max_size()) |
| __throw_length_error("allocator<const T>::allocate(size_t n)" |
| " 'n' exceeds maximum supported size"); |
| return static_cast<pointer>(_VSTD::__libcpp_allocate(__n * sizeof(_Tp), __alignof(_Tp))); |
| } |
| _LIBCPP_INLINE_VISIBILITY void deallocate(pointer __p, size_type) _NOEXCEPT |
| {_VSTD::__libcpp_deallocate((void*) const_cast<_Tp *>(__p), __alignof(_Tp));} |
| _LIBCPP_INLINE_VISIBILITY size_type max_size() const _NOEXCEPT |
| {return size_type(~0) / sizeof(_Tp);} |
| #if !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_VARIADICS) |
| template <class _Up, class... _Args> |
| _LIBCPP_INLINE_VISIBILITY |
| void |
| construct(_Up* __p, _Args&&... __args) |
| { |
| ::new((void*)__p) _Up(_VSTD::forward<_Args>(__args)...); |
| } |
| #else // !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_VARIADICS) |
| _LIBCPP_INLINE_VISIBILITY |
| void |
| construct(pointer __p) |
| { |
| ::new((void*) const_cast<_Tp *>(__p)) _Tp(); |
| } |
| # if defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) |
| |
| template <class _A0> |
| _LIBCPP_INLINE_VISIBILITY |
| void |
| construct(pointer __p, _A0& __a0) |
| { |
| ::new((void*) const_cast<_Tp *>(__p)) _Tp(__a0); |
| } |
| template <class _A0> |
| _LIBCPP_INLINE_VISIBILITY |
| void |
| construct(pointer __p, const _A0& __a0) |
| { |
| ::new((void*) const_cast<_Tp *>(__p)) _Tp(__a0); |
| } |
| # endif // defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) |
| template <class _A0, class _A1> |
| _LIBCPP_INLINE_VISIBILITY |
| void |
| construct(pointer __p, _A0& __a0, _A1& __a1) |
| { |
| ::new((void*) const_cast<_Tp *>(__p)) _Tp(__a0, __a1); |
| } |
| template <class _A0, class _A1> |
| _LIBCPP_INLINE_VISIBILITY |
| void |
| construct(pointer __p, const _A0& __a0, _A1& __a1) |
| { |
| ::new((void*) const_cast<_Tp *>(__p)) _Tp(__a0, __a1); |
| } |
| template <class _A0, class _A1> |
| _LIBCPP_INLINE_VISIBILITY |
| void |
| construct(pointer __p, _A0& __a0, const _A1& __a1) |
| { |
| ::new((void*) const_cast<_Tp *>(__p)) _Tp(__a0, __a1); |
| } |
| template <class _A0, class _A1> |
| _LIBCPP_INLINE_VISIBILITY |
| void |
| construct(pointer __p, const _A0& __a0, const _A1& __a1) |
| { |
| ::new((void*) const_cast<_Tp *>(__p)) _Tp(__a0, __a1); |
| } |
| #endif // !defined(_LIBCPP_HAS_NO_RVALUE_REFERENCES) && !defined(_LIBCPP_HAS_NO_VARIADICS) |
| _LIBCPP_INLINE_VISIBILITY void destroy(pointer __p) {__p->~_Tp();} |
| }; |
| |
| template <class _Tp, class _Up> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool operator==(const allocator<_Tp>&, const allocator<_Up>&) _NOEXCEPT {return true;} |
| |
| template <class _Tp, class _Up> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool operator!=(const allocator<_Tp>&, const allocator<_Up>&) _NOEXCEPT {return false;} |
| |
| template <class _OutputIterator, class _Tp> |
| class _LIBCPP_TEMPLATE_VIS raw_storage_iterator |
| : public iterator<output_iterator_tag, |
| _Tp, // purposefully not C++03 |
| ptrdiff_t, // purposefully not C++03 |
| _Tp*, // purposefully not C++03 |
| raw_storage_iterator<_OutputIterator, _Tp>&> // purposefully not C++03 |
| { |
| private: |
| _OutputIterator __x_; |
| public: |
| _LIBCPP_INLINE_VISIBILITY explicit raw_storage_iterator(_OutputIterator __x) : __x_(__x) {} |
| _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator*() {return *this;} |
| _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator=(const _Tp& __element) |
| {::new(_VSTD::addressof(*__x_)) _Tp(__element); return *this;} |
| #if _LIBCPP_STD_VER >= 14 |
| _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator=(_Tp&& __element) |
| {::new(_VSTD::addressof(*__x_)) _Tp(_VSTD::move(__element)); return *this;} |
| #endif |
| _LIBCPP_INLINE_VISIBILITY raw_storage_iterator& operator++() {++__x_; return *this;} |
| _LIBCPP_INLINE_VISIBILITY raw_storage_iterator operator++(int) |
| {raw_storage_iterator __t(*this); ++__x_; return __t;} |
| #if _LIBCPP_STD_VER >= 14 |
| _LIBCPP_INLINE_VISIBILITY _OutputIterator base() const { return __x_; } |
| #endif |
| }; |
| |
| template <class _Tp> |
| _LIBCPP_NO_CFI |
| pair<_Tp*, ptrdiff_t> |
| get_temporary_buffer(ptrdiff_t __n) _NOEXCEPT |
| { |
| pair<_Tp*, ptrdiff_t> __r(0, 0); |
| const ptrdiff_t __m = (~ptrdiff_t(0) ^ |
| ptrdiff_t(ptrdiff_t(1) << (sizeof(ptrdiff_t) * __CHAR_BIT__ - 1))) |
| / sizeof(_Tp); |
| if (__n > __m) |
| __n = __m; |
| while (__n > 0) |
| { |
| #if !defined(_LIBCPP_HAS_NO_ALIGNED_ALLOCATION) |
| if (__is_overaligned_for_new(__alignof(_Tp))) |
| { |
| std::align_val_t __al = |
| std::align_val_t(std::alignment_of<_Tp>::value); |
| __r.first = static_cast<_Tp*>(::operator new( |
| __n * sizeof(_Tp), __al, nothrow)); |
| } else { |
| __r.first = static_cast<_Tp*>(::operator new( |
| __n * sizeof(_Tp), nothrow)); |
| } |
| #else |
| if (__is_overaligned_for_new(__alignof(_Tp))) |
| { |
| // Since aligned operator new is unavailable, return an empty |
| // buffer rather than one with invalid alignment. |
| return __r; |
| } |
| |
| __r.first = static_cast<_Tp*>(::operator new(__n * sizeof(_Tp), nothrow)); |
| #endif |
| |
| if (__r.first) |
| { |
| __r.second = __n; |
| break; |
| } |
| __n /= 2; |
| } |
| return __r; |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| void return_temporary_buffer(_Tp* __p) _NOEXCEPT |
| { |
| _VSTD::__libcpp_deallocate((void*)__p, __alignof(_Tp)); |
| } |
| |
| #if _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR) |
| template <class _Tp> |
| struct auto_ptr_ref |
| { |
| _Tp* __ptr_; |
| }; |
| |
| template<class _Tp> |
| class _LIBCPP_TEMPLATE_VIS auto_ptr |
| { |
| private: |
| _Tp* __ptr_; |
| public: |
| typedef _Tp element_type; |
| |
| _LIBCPP_INLINE_VISIBILITY explicit auto_ptr(_Tp* __p = 0) throw() : __ptr_(__p) {} |
| _LIBCPP_INLINE_VISIBILITY auto_ptr(auto_ptr& __p) throw() : __ptr_(__p.release()) {} |
| template<class _Up> _LIBCPP_INLINE_VISIBILITY auto_ptr(auto_ptr<_Up>& __p) throw() |
| : __ptr_(__p.release()) {} |
| _LIBCPP_INLINE_VISIBILITY auto_ptr& operator=(auto_ptr& __p) throw() |
| {reset(__p.release()); return *this;} |
| template<class _Up> _LIBCPP_INLINE_VISIBILITY auto_ptr& operator=(auto_ptr<_Up>& __p) throw() |
| {reset(__p.release()); return *this;} |
| _LIBCPP_INLINE_VISIBILITY auto_ptr& operator=(auto_ptr_ref<_Tp> __p) throw() |
| {reset(__p.__ptr_); return *this;} |
| _LIBCPP_INLINE_VISIBILITY ~auto_ptr() throw() {delete __ptr_;} |
| |
| _LIBCPP_INLINE_VISIBILITY _Tp& operator*() const throw() |
| {return *__ptr_;} |
| _LIBCPP_INLINE_VISIBILITY _Tp* operator->() const throw() {return __ptr_;} |
| _LIBCPP_INLINE_VISIBILITY _Tp* get() const throw() {return __ptr_;} |
| _LIBCPP_INLINE_VISIBILITY _Tp* release() throw() |
| { |
| _Tp* __t = __ptr_; |
| __ptr_ = 0; |
| return __t; |
| } |
| _LIBCPP_INLINE_VISIBILITY void reset(_Tp* __p = 0) throw() |
| { |
| if (__ptr_ != __p) |
| delete __ptr_; |
| __ptr_ = __p; |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY auto_ptr(auto_ptr_ref<_Tp> __p) throw() : __ptr_(__p.__ptr_) {} |
| template<class _Up> _LIBCPP_INLINE_VISIBILITY operator auto_ptr_ref<_Up>() throw() |
| {auto_ptr_ref<_Up> __t; __t.__ptr_ = release(); return __t;} |
| template<class _Up> _LIBCPP_INLINE_VISIBILITY operator auto_ptr<_Up>() throw() |
| {return auto_ptr<_Up>(release());} |
| }; |
| |
| template <> |
| class _LIBCPP_TEMPLATE_VIS auto_ptr<void> |
| { |
| public: |
| typedef void element_type; |
| }; |
| #endif |
| |
| template <class _Tp, int _Idx, |
| bool _CanBeEmptyBase = |
| is_empty<_Tp>::value && !__libcpp_is_final<_Tp>::value> |
| struct __compressed_pair_elem { |
| typedef _Tp _ParamT; |
| typedef _Tp& reference; |
| typedef const _Tp& const_reference; |
| |
| #ifndef _LIBCPP_CXX03_LANG |
| _LIBCPP_INLINE_VISIBILITY constexpr __compressed_pair_elem() : __value_() {} |
| |
| template <class _Up, class = typename enable_if< |
| !is_same<__compressed_pair_elem, typename decay<_Up>::type>::value |
| >::type> |
| _LIBCPP_INLINE_VISIBILITY |
| constexpr explicit |
| __compressed_pair_elem(_Up&& __u) |
| : __value_(_VSTD::forward<_Up>(__u)){}; |
| |
| template <class... _Args, size_t... _Indexes> |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| __compressed_pair_elem(piecewise_construct_t, tuple<_Args...> __args, |
| __tuple_indices<_Indexes...>) |
| : __value_(_VSTD::forward<_Args>(_VSTD::get<_Indexes>(__args))...) {} |
| #else |
| _LIBCPP_INLINE_VISIBILITY __compressed_pair_elem() : __value_() {} |
| _LIBCPP_INLINE_VISIBILITY |
| __compressed_pair_elem(_ParamT __p) : __value_(std::forward<_ParamT>(__p)) {} |
| #endif |
| |
| _LIBCPP_INLINE_VISIBILITY reference __get() _NOEXCEPT { return __value_; } |
| _LIBCPP_INLINE_VISIBILITY |
| const_reference __get() const _NOEXCEPT { return __value_; } |
| |
| private: |
| _Tp __value_; |
| }; |
| |
| template <class _Tp, int _Idx> |
| struct __compressed_pair_elem<_Tp, _Idx, true> : private _Tp { |
| typedef _Tp _ParamT; |
| typedef _Tp& reference; |
| typedef const _Tp& const_reference; |
| typedef _Tp __value_type; |
| |
| #ifndef _LIBCPP_CXX03_LANG |
| _LIBCPP_INLINE_VISIBILITY constexpr __compressed_pair_elem() = default; |
| |
| template <class _Up, class = typename enable_if< |
| !is_same<__compressed_pair_elem, typename decay<_Up>::type>::value |
| >::type> |
| _LIBCPP_INLINE_VISIBILITY |
| constexpr explicit |
| __compressed_pair_elem(_Up&& __u) |
| : __value_type(_VSTD::forward<_Up>(__u)){}; |
| |
| template <class... _Args, size_t... _Indexes> |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| __compressed_pair_elem(piecewise_construct_t, tuple<_Args...> __args, |
| __tuple_indices<_Indexes...>) |
| : __value_type(_VSTD::forward<_Args>(_VSTD::get<_Indexes>(__args))...) {} |
| #else |
| _LIBCPP_INLINE_VISIBILITY __compressed_pair_elem() : __value_type() {} |
| _LIBCPP_INLINE_VISIBILITY |
| __compressed_pair_elem(_ParamT __p) |
| : __value_type(std::forward<_ParamT>(__p)) {} |
| #endif |
| |
| _LIBCPP_INLINE_VISIBILITY reference __get() _NOEXCEPT { return *this; } |
| _LIBCPP_INLINE_VISIBILITY |
| const_reference __get() const _NOEXCEPT { return *this; } |
| }; |
| |
| // Tag used to construct the second element of the compressed pair. |
| struct __second_tag {}; |
| |
| template <class _T1, class _T2> |
| class __compressed_pair : private __compressed_pair_elem<_T1, 0>, |
| private __compressed_pair_elem<_T2, 1> { |
| typedef __compressed_pair_elem<_T1, 0> _Base1; |
| typedef __compressed_pair_elem<_T2, 1> _Base2; |
| |
| // NOTE: This static assert should never fire because __compressed_pair |
| // is *almost never* used in a scenario where it's possible for T1 == T2. |
| // (The exception is std::function where it is possible that the function |
| // object and the allocator have the same type). |
| static_assert((!is_same<_T1, _T2>::value), |
| "__compressed_pair cannot be instantated when T1 and T2 are the same type; " |
| "The current implementation is NOT ABI-compatible with the previous " |
| "implementation for this configuration"); |
| |
| public: |
| #ifndef _LIBCPP_CXX03_LANG |
| template <bool _Dummy = true, |
| class = typename enable_if< |
| __dependent_type<is_default_constructible<_T1>, _Dummy>::value && |
| __dependent_type<is_default_constructible<_T2>, _Dummy>::value |
| >::type |
| > |
| _LIBCPP_INLINE_VISIBILITY |
| constexpr __compressed_pair() {} |
| |
| template <class _Tp, typename enable_if<!is_same<typename decay<_Tp>::type, |
| __compressed_pair>::value, |
| bool>::type = true> |
| _LIBCPP_INLINE_VISIBILITY constexpr explicit |
| __compressed_pair(_Tp&& __t) |
| : _Base1(std::forward<_Tp>(__t)), _Base2() {} |
| |
| template <class _Tp> |
| _LIBCPP_INLINE_VISIBILITY constexpr |
| __compressed_pair(__second_tag, _Tp&& __t) |
| : _Base1(), _Base2(std::forward<_Tp>(__t)) {} |
| |
| template <class _U1, class _U2> |
| _LIBCPP_INLINE_VISIBILITY constexpr |
| __compressed_pair(_U1&& __t1, _U2&& __t2) |
| : _Base1(std::forward<_U1>(__t1)), _Base2(std::forward<_U2>(__t2)) {} |
| |
| template <class... _Args1, class... _Args2> |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX14 |
| __compressed_pair(piecewise_construct_t __pc, tuple<_Args1...> __first_args, |
| tuple<_Args2...> __second_args) |
| : _Base1(__pc, _VSTD::move(__first_args), |
| typename __make_tuple_indices<sizeof...(_Args1)>::type()), |
| _Base2(__pc, _VSTD::move(__second_args), |
| typename __make_tuple_indices<sizeof...(_Args2)>::type()) {} |
| |
| #else |
| _LIBCPP_INLINE_VISIBILITY |
| __compressed_pair() {} |
| |
| _LIBCPP_INLINE_VISIBILITY explicit |
| __compressed_pair(_T1 __t1) : _Base1(_VSTD::forward<_T1>(__t1)) {} |
| |
| _LIBCPP_INLINE_VISIBILITY |
| __compressed_pair(__second_tag, _T2 __t2) |
| : _Base1(), _Base2(_VSTD::forward<_T2>(__t2)) {} |
| |
| _LIBCPP_INLINE_VISIBILITY |
| __compressed_pair(_T1 __t1, _T2 __t2) |
| : _Base1(_VSTD::forward<_T1>(__t1)), _Base2(_VSTD::forward<_T2>(__t2)) {} |
| #endif |
| |
| _LIBCPP_INLINE_VISIBILITY |
| typename _Base1::reference first() _NOEXCEPT { |
| return static_cast<_Base1&>(*this).__get(); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| typename _Base1::const_reference first() const _NOEXCEPT { |
| return static_cast<_Base1 const&>(*this).__get(); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| typename _Base2::reference second() _NOEXCEPT { |
| return static_cast<_Base2&>(*this).__get(); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| typename _Base2::const_reference second() const _NOEXCEPT { |
| return static_cast<_Base2 const&>(*this).__get(); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| void swap(__compressed_pair& __x) |
| _NOEXCEPT_(__is_nothrow_swappable<_T1>::value && |
| __is_nothrow_swappable<_T2>::value) |
| { |
| using std::swap; |
| swap(first(), __x.first()); |
| swap(second(), __x.second()); |
| } |
| }; |
| |
| template <class _T1, class _T2> |
| inline _LIBCPP_INLINE_VISIBILITY |
| void swap(__compressed_pair<_T1, _T2>& __x, __compressed_pair<_T1, _T2>& __y) |
| _NOEXCEPT_(__is_nothrow_swappable<_T1>::value && |
| __is_nothrow_swappable<_T2>::value) { |
| __x.swap(__y); |
| } |
| |
| // default_delete |
| |
| template <class _Tp> |
| struct _LIBCPP_TEMPLATE_VIS default_delete { |
| static_assert(!is_function<_Tp>::value, |
| "default_delete cannot be instantiated for function types"); |
| #ifndef _LIBCPP_CXX03_LANG |
| _LIBCPP_INLINE_VISIBILITY constexpr default_delete() noexcept = default; |
| #else |
| _LIBCPP_INLINE_VISIBILITY default_delete() {} |
| #endif |
| template <class _Up> |
| _LIBCPP_INLINE_VISIBILITY |
| default_delete(const default_delete<_Up>&, |
| typename enable_if<is_convertible<_Up*, _Tp*>::value>::type* = |
| 0) _NOEXCEPT {} |
| |
| _LIBCPP_INLINE_VISIBILITY void operator()(_Tp* __ptr) const _NOEXCEPT { |
| static_assert(sizeof(_Tp) > 0, |
| "default_delete can not delete incomplete type"); |
| static_assert(!is_void<_Tp>::value, |
| "default_delete can not delete incomplete type"); |
| delete __ptr; |
| } |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TEMPLATE_VIS default_delete<_Tp[]> { |
| private: |
| template <class _Up> |
| struct _EnableIfConvertible |
| : enable_if<is_convertible<_Up(*)[], _Tp(*)[]>::value> {}; |
| |
| public: |
| #ifndef _LIBCPP_CXX03_LANG |
| _LIBCPP_INLINE_VISIBILITY constexpr default_delete() noexcept = default; |
| #else |
| _LIBCPP_INLINE_VISIBILITY default_delete() {} |
| #endif |
| |
| template <class _Up> |
| _LIBCPP_INLINE_VISIBILITY |
| default_delete(const default_delete<_Up[]>&, |
| typename _EnableIfConvertible<_Up>::type* = 0) _NOEXCEPT {} |
| |
| template <class _Up> |
| _LIBCPP_INLINE_VISIBILITY |
| typename _EnableIfConvertible<_Up>::type |
| operator()(_Up* __ptr) const _NOEXCEPT { |
| static_assert(sizeof(_Tp) > 0, |
| "default_delete can not delete incomplete type"); |
| static_assert(!is_void<_Tp>::value, |
| "default_delete can not delete void type"); |
| delete[] __ptr; |
| } |
| }; |
| |
| |
| |
| #ifndef _LIBCPP_CXX03_LANG |
| template <class _Deleter> |
| struct __unique_ptr_deleter_sfinae { |
| static_assert(!is_reference<_Deleter>::value, "incorrect specialization"); |
| typedef const _Deleter& __lval_ref_type; |
| typedef _Deleter&& __good_rval_ref_type; |
| typedef true_type __enable_rval_overload; |
| }; |
| |
| template <class _Deleter> |
| struct __unique_ptr_deleter_sfinae<_Deleter const&> { |
| typedef const _Deleter& __lval_ref_type; |
| typedef const _Deleter&& __bad_rval_ref_type; |
| typedef false_type __enable_rval_overload; |
| }; |
| |
| template <class _Deleter> |
| struct __unique_ptr_deleter_sfinae<_Deleter&> { |
| typedef _Deleter& __lval_ref_type; |
| typedef _Deleter&& __bad_rval_ref_type; |
| typedef false_type __enable_rval_overload; |
| }; |
| #endif // !defined(_LIBCPP_CXX03_LANG) |
| |
| template <class _Tp, class _Dp = default_delete<_Tp> > |
| class _LIBCPP_TEMPLATE_VIS unique_ptr { |
| public: |
| typedef _Tp element_type; |
| typedef _Dp deleter_type; |
| typedef typename __pointer_type<_Tp, deleter_type>::type pointer; |
| |
| static_assert(!is_rvalue_reference<deleter_type>::value, |
| "the specified deleter type cannot be an rvalue reference"); |
| |
| private: |
| __compressed_pair<pointer, deleter_type> __ptr_; |
| |
| struct __nat { int __for_bool_; }; |
| |
| #ifndef _LIBCPP_CXX03_LANG |
| typedef __unique_ptr_deleter_sfinae<_Dp> _DeleterSFINAE; |
| |
| template <bool _Dummy> |
| using _LValRefType = |
| typename __dependent_type<_DeleterSFINAE, _Dummy>::__lval_ref_type; |
| |
| template <bool _Dummy> |
| using _GoodRValRefType = |
| typename __dependent_type<_DeleterSFINAE, _Dummy>::__good_rval_ref_type; |
| |
| template <bool _Dummy> |
| using _BadRValRefType = |
| typename __dependent_type<_DeleterSFINAE, _Dummy>::__bad_rval_ref_type; |
| |
| template <bool _Dummy, class _Deleter = typename __dependent_type< |
| __identity<deleter_type>, _Dummy>::type> |
| using _EnableIfDeleterDefaultConstructible = |
| typename enable_if<is_default_constructible<_Deleter>::value && |
| !is_pointer<_Deleter>::value>::type; |
| |
| template <class _ArgType> |
| using _EnableIfDeleterConstructible = |
| typename enable_if<is_constructible<deleter_type, _ArgType>::value>::type; |
| |
| template <class _UPtr, class _Up> |
| using _EnableIfMoveConvertible = typename enable_if< |
| is_convertible<typename _UPtr::pointer, pointer>::value && |
| !is_array<_Up>::value |
| >::type; |
| |
| template <class _UDel> |
| using _EnableIfDeleterConvertible = typename enable_if< |
| (is_reference<_Dp>::value && is_same<_Dp, _UDel>::value) || |
| (!is_reference<_Dp>::value && is_convertible<_UDel, _Dp>::value) |
| >::type; |
| |
| template <class _UDel> |
| using _EnableIfDeleterAssignable = typename enable_if< |
| is_assignable<_Dp&, _UDel&&>::value |
| >::type; |
| |
| public: |
| template <bool _Dummy = true, |
| class = _EnableIfDeleterDefaultConstructible<_Dummy>> |
| _LIBCPP_INLINE_VISIBILITY |
| constexpr unique_ptr() noexcept : __ptr_(pointer()) {} |
| |
| template <bool _Dummy = true, |
| class = _EnableIfDeleterDefaultConstructible<_Dummy>> |
| _LIBCPP_INLINE_VISIBILITY |
| constexpr unique_ptr(nullptr_t) noexcept : __ptr_(pointer()) {} |
| |
| template <bool _Dummy = true, |
| class = _EnableIfDeleterDefaultConstructible<_Dummy>> |
| _LIBCPP_INLINE_VISIBILITY |
| explicit unique_ptr(pointer __p) noexcept : __ptr_(__p) {} |
| |
| template <bool _Dummy = true, |
| class = _EnableIfDeleterConstructible<_LValRefType<_Dummy>>> |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr(pointer __p, _LValRefType<_Dummy> __d) noexcept |
| : __ptr_(__p, __d) {} |
| |
| template <bool _Dummy = true, |
| class = _EnableIfDeleterConstructible<_GoodRValRefType<_Dummy>>> |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr(pointer __p, _GoodRValRefType<_Dummy> __d) noexcept |
| : __ptr_(__p, _VSTD::move(__d)) { |
| static_assert(!is_reference<deleter_type>::value, |
| "rvalue deleter bound to reference"); |
| } |
| |
| template <bool _Dummy = true, |
| class = _EnableIfDeleterConstructible<_BadRValRefType<_Dummy>>> |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr(pointer __p, _BadRValRefType<_Dummy> __d) = delete; |
| |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr(unique_ptr&& __u) noexcept |
| : __ptr_(__u.release(), _VSTD::forward<deleter_type>(__u.get_deleter())) { |
| } |
| |
| template <class _Up, class _Ep, |
| class = _EnableIfMoveConvertible<unique_ptr<_Up, _Ep>, _Up>, |
| class = _EnableIfDeleterConvertible<_Ep> |
| > |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr(unique_ptr<_Up, _Ep>&& __u) _NOEXCEPT |
| : __ptr_(__u.release(), _VSTD::forward<_Ep>(__u.get_deleter())) {} |
| |
| #if _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR) |
| template <class _Up> |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr(auto_ptr<_Up>&& __p, |
| typename enable_if<is_convertible<_Up*, _Tp*>::value && |
| is_same<_Dp, default_delete<_Tp>>::value, |
| __nat>::type = __nat()) _NOEXCEPT |
| : __ptr_(__p.release()) {} |
| #endif |
| |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr& operator=(unique_ptr&& __u) _NOEXCEPT { |
| reset(__u.release()); |
| __ptr_.second() = _VSTD::forward<deleter_type>(__u.get_deleter()); |
| return *this; |
| } |
| |
| template <class _Up, class _Ep, |
| class = _EnableIfMoveConvertible<unique_ptr<_Up, _Ep>, _Up>, |
| class = _EnableIfDeleterAssignable<_Ep> |
| > |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr& operator=(unique_ptr<_Up, _Ep>&& __u) _NOEXCEPT { |
| reset(__u.release()); |
| __ptr_.second() = _VSTD::forward<_Ep>(__u.get_deleter()); |
| return *this; |
| } |
| |
| #else // _LIBCPP_CXX03_LANG |
| private: |
| unique_ptr(unique_ptr&); |
| template <class _Up, class _Ep> unique_ptr(unique_ptr<_Up, _Ep>&); |
| |
| unique_ptr& operator=(unique_ptr&); |
| template <class _Up, class _Ep> unique_ptr& operator=(unique_ptr<_Up, _Ep>&); |
| |
| public: |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr() : __ptr_(pointer()) |
| { |
| static_assert(!is_pointer<deleter_type>::value, |
| "unique_ptr constructed with null function pointer deleter"); |
| static_assert(is_default_constructible<deleter_type>::value, |
| "unique_ptr::deleter_type is not default constructible"); |
| } |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr(nullptr_t) : __ptr_(pointer()) |
| { |
| static_assert(!is_pointer<deleter_type>::value, |
| "unique_ptr constructed with null function pointer deleter"); |
| } |
| _LIBCPP_INLINE_VISIBILITY |
| explicit unique_ptr(pointer __p) |
| : __ptr_(_VSTD::move(__p)) { |
| static_assert(!is_pointer<deleter_type>::value, |
| "unique_ptr constructed with null function pointer deleter"); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| operator __rv<unique_ptr>() { |
| return __rv<unique_ptr>(*this); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr(__rv<unique_ptr> __u) |
| : __ptr_(__u->release(), |
| _VSTD::forward<deleter_type>(__u->get_deleter())) {} |
| |
| template <class _Up, class _Ep> |
| _LIBCPP_INLINE_VISIBILITY |
| typename enable_if< |
| !is_array<_Up>::value && |
| is_convertible<typename unique_ptr<_Up, _Ep>::pointer, |
| pointer>::value && |
| is_assignable<deleter_type&, _Ep&>::value, |
| unique_ptr&>::type |
| operator=(unique_ptr<_Up, _Ep> __u) { |
| reset(__u.release()); |
| __ptr_.second() = _VSTD::forward<_Ep>(__u.get_deleter()); |
| return *this; |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr(pointer __p, deleter_type __d) |
| : __ptr_(_VSTD::move(__p), _VSTD::move(__d)) {} |
| #endif // _LIBCPP_CXX03_LANG |
| |
| #if _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR) |
| template <class _Up> |
| _LIBCPP_INLINE_VISIBILITY |
| typename enable_if<is_convertible<_Up*, _Tp*>::value && |
| is_same<_Dp, default_delete<_Tp> >::value, |
| unique_ptr&>::type |
| operator=(auto_ptr<_Up> __p) { |
| reset(__p.release()); |
| return *this; |
| } |
| #endif |
| |
| _LIBCPP_INLINE_VISIBILITY |
| ~unique_ptr() { reset(); } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr& operator=(nullptr_t) _NOEXCEPT { |
| reset(); |
| return *this; |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| typename add_lvalue_reference<_Tp>::type |
| operator*() const { |
| return *__ptr_.first(); |
| } |
| _LIBCPP_INLINE_VISIBILITY |
| pointer operator->() const _NOEXCEPT { |
| return __ptr_.first(); |
| } |
| _LIBCPP_INLINE_VISIBILITY |
| pointer get() const _NOEXCEPT { |
| return __ptr_.first(); |
| } |
| _LIBCPP_INLINE_VISIBILITY |
| deleter_type& get_deleter() _NOEXCEPT { |
| return __ptr_.second(); |
| } |
| _LIBCPP_INLINE_VISIBILITY |
| const deleter_type& get_deleter() const _NOEXCEPT { |
| return __ptr_.second(); |
| } |
| _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_EXPLICIT operator bool() const _NOEXCEPT { |
| return __ptr_.first() != nullptr; |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| pointer release() _NOEXCEPT { |
| pointer __t = __ptr_.first(); |
| __ptr_.first() = pointer(); |
| return __t; |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| void reset(pointer __p = pointer()) _NOEXCEPT { |
| pointer __tmp = __ptr_.first(); |
| __ptr_.first() = __p; |
| if (__tmp) |
| __ptr_.second()(__tmp); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| void swap(unique_ptr& __u) _NOEXCEPT { |
| __ptr_.swap(__u.__ptr_); |
| } |
| }; |
| |
| |
| template <class _Tp, class _Dp> |
| class _LIBCPP_TEMPLATE_VIS unique_ptr<_Tp[], _Dp> { |
| public: |
| typedef _Tp element_type; |
| typedef _Dp deleter_type; |
| typedef typename __pointer_type<_Tp, deleter_type>::type pointer; |
| |
| private: |
| __compressed_pair<pointer, deleter_type> __ptr_; |
| |
| template <class _From> |
| struct _CheckArrayPointerConversion : is_same<_From, pointer> {}; |
| |
| template <class _FromElem> |
| struct _CheckArrayPointerConversion<_FromElem*> |
| : integral_constant<bool, |
| is_same<_FromElem*, pointer>::value || |
| (is_same<pointer, element_type*>::value && |
| is_convertible<_FromElem(*)[], element_type(*)[]>::value) |
| > |
| {}; |
| |
| #ifndef _LIBCPP_CXX03_LANG |
| typedef __unique_ptr_deleter_sfinae<_Dp> _DeleterSFINAE; |
| |
| template <bool _Dummy> |
| using _LValRefType = |
| typename __dependent_type<_DeleterSFINAE, _Dummy>::__lval_ref_type; |
| |
| template <bool _Dummy> |
| using _GoodRValRefType = |
| typename __dependent_type<_DeleterSFINAE, _Dummy>::__good_rval_ref_type; |
| |
| template <bool _Dummy> |
| using _BadRValRefType = |
| typename __dependent_type<_DeleterSFINAE, _Dummy>::__bad_rval_ref_type; |
| |
| template <bool _Dummy, class _Deleter = typename __dependent_type< |
| __identity<deleter_type>, _Dummy>::type> |
| using _EnableIfDeleterDefaultConstructible = |
| typename enable_if<is_default_constructible<_Deleter>::value && |
| !is_pointer<_Deleter>::value>::type; |
| |
| template <class _ArgType> |
| using _EnableIfDeleterConstructible = |
| typename enable_if<is_constructible<deleter_type, _ArgType>::value>::type; |
| |
| template <class _Pp> |
| using _EnableIfPointerConvertible = typename enable_if< |
| _CheckArrayPointerConversion<_Pp>::value |
| >::type; |
| |
| template <class _UPtr, class _Up, |
| class _ElemT = typename _UPtr::element_type> |
| using _EnableIfMoveConvertible = typename enable_if< |
| is_array<_Up>::value && |
| is_same<pointer, element_type*>::value && |
| is_same<typename _UPtr::pointer, _ElemT*>::value && |
| is_convertible<_ElemT(*)[], element_type(*)[]>::value |
| >::type; |
| |
| template <class _UDel> |
| using _EnableIfDeleterConvertible = typename enable_if< |
| (is_reference<_Dp>::value && is_same<_Dp, _UDel>::value) || |
| (!is_reference<_Dp>::value && is_convertible<_UDel, _Dp>::value) |
| >::type; |
| |
| template <class _UDel> |
| using _EnableIfDeleterAssignable = typename enable_if< |
| is_assignable<_Dp&, _UDel&&>::value |
| >::type; |
| |
| public: |
| template <bool _Dummy = true, |
| class = _EnableIfDeleterDefaultConstructible<_Dummy>> |
| _LIBCPP_INLINE_VISIBILITY |
| constexpr unique_ptr() noexcept : __ptr_(pointer()) {} |
| |
| template <bool _Dummy = true, |
| class = _EnableIfDeleterDefaultConstructible<_Dummy>> |
| _LIBCPP_INLINE_VISIBILITY |
| constexpr unique_ptr(nullptr_t) noexcept : __ptr_(pointer()) {} |
| |
| template <class _Pp, bool _Dummy = true, |
| class = _EnableIfDeleterDefaultConstructible<_Dummy>, |
| class = _EnableIfPointerConvertible<_Pp>> |
| _LIBCPP_INLINE_VISIBILITY |
| explicit unique_ptr(_Pp __p) noexcept |
| : __ptr_(__p) {} |
| |
| template <class _Pp, bool _Dummy = true, |
| class = _EnableIfDeleterConstructible<_LValRefType<_Dummy>>, |
| class = _EnableIfPointerConvertible<_Pp>> |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr(_Pp __p, _LValRefType<_Dummy> __d) noexcept |
| : __ptr_(__p, __d) {} |
| |
| template <bool _Dummy = true, |
| class = _EnableIfDeleterConstructible<_LValRefType<_Dummy>>> |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr(nullptr_t, _LValRefType<_Dummy> __d) noexcept |
| : __ptr_(nullptr, __d) {} |
| |
| template <class _Pp, bool _Dummy = true, |
| class = _EnableIfDeleterConstructible<_GoodRValRefType<_Dummy>>, |
| class = _EnableIfPointerConvertible<_Pp>> |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr(_Pp __p, _GoodRValRefType<_Dummy> __d) noexcept |
| : __ptr_(__p, _VSTD::move(__d)) { |
| static_assert(!is_reference<deleter_type>::value, |
| "rvalue deleter bound to reference"); |
| } |
| |
| template <bool _Dummy = true, |
| class = _EnableIfDeleterConstructible<_GoodRValRefType<_Dummy>>> |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr(nullptr_t, _GoodRValRefType<_Dummy> __d) noexcept |
| : __ptr_(nullptr, _VSTD::move(__d)) { |
| static_assert(!is_reference<deleter_type>::value, |
| "rvalue deleter bound to reference"); |
| } |
| |
| template <class _Pp, bool _Dummy = true, |
| class = _EnableIfDeleterConstructible<_BadRValRefType<_Dummy>>, |
| class = _EnableIfPointerConvertible<_Pp>> |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr(_Pp __p, _BadRValRefType<_Dummy> __d) = delete; |
| |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr(unique_ptr&& __u) noexcept |
| : __ptr_(__u.release(), _VSTD::forward<deleter_type>(__u.get_deleter())) { |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr& operator=(unique_ptr&& __u) noexcept { |
| reset(__u.release()); |
| __ptr_.second() = _VSTD::forward<deleter_type>(__u.get_deleter()); |
| return *this; |
| } |
| |
| template <class _Up, class _Ep, |
| class = _EnableIfMoveConvertible<unique_ptr<_Up, _Ep>, _Up>, |
| class = _EnableIfDeleterConvertible<_Ep> |
| > |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr(unique_ptr<_Up, _Ep>&& __u) noexcept |
| : __ptr_(__u.release(), _VSTD::forward<_Ep>(__u.get_deleter())) { |
| } |
| |
| template <class _Up, class _Ep, |
| class = _EnableIfMoveConvertible<unique_ptr<_Up, _Ep>, _Up>, |
| class = _EnableIfDeleterAssignable<_Ep> |
| > |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr& |
| operator=(unique_ptr<_Up, _Ep>&& __u) noexcept { |
| reset(__u.release()); |
| __ptr_.second() = _VSTD::forward<_Ep>(__u.get_deleter()); |
| return *this; |
| } |
| |
| #else // _LIBCPP_CXX03_LANG |
| private: |
| template <class _Up> explicit unique_ptr(_Up); |
| |
| unique_ptr(unique_ptr&); |
| template <class _Up> unique_ptr(unique_ptr<_Up>&); |
| |
| unique_ptr& operator=(unique_ptr&); |
| template <class _Up> unique_ptr& operator=(unique_ptr<_Up>&); |
| |
| template <class _Up> |
| unique_ptr(_Up __u, |
| typename conditional< |
| is_reference<deleter_type>::value, deleter_type, |
| typename add_lvalue_reference<const deleter_type>::type>::type, |
| typename enable_if<is_convertible<_Up, pointer>::value, |
| __nat>::type = __nat()); |
| public: |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr() : __ptr_(pointer()) { |
| static_assert(!is_pointer<deleter_type>::value, |
| "unique_ptr constructed with null function pointer deleter"); |
| } |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr(nullptr_t) : __ptr_(pointer()) { |
| static_assert(!is_pointer<deleter_type>::value, |
| "unique_ptr constructed with null function pointer deleter"); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| explicit unique_ptr(pointer __p) : __ptr_(__p) { |
| static_assert(!is_pointer<deleter_type>::value, |
| "unique_ptr constructed with null function pointer deleter"); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr(pointer __p, deleter_type __d) |
| : __ptr_(__p, _VSTD::forward<deleter_type>(__d)) {} |
| |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr(nullptr_t, deleter_type __d) |
| : __ptr_(pointer(), _VSTD::forward<deleter_type>(__d)) {} |
| |
| _LIBCPP_INLINE_VISIBILITY |
| operator __rv<unique_ptr>() { |
| return __rv<unique_ptr>(*this); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr(__rv<unique_ptr> __u) |
| : __ptr_(__u->release(), |
| _VSTD::forward<deleter_type>(__u->get_deleter())) {} |
| |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr& operator=(__rv<unique_ptr> __u) { |
| reset(__u->release()); |
| __ptr_.second() = _VSTD::forward<deleter_type>(__u->get_deleter()); |
| return *this; |
| } |
| |
| #endif // _LIBCPP_CXX03_LANG |
| |
| public: |
| _LIBCPP_INLINE_VISIBILITY |
| ~unique_ptr() { reset(); } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| unique_ptr& operator=(nullptr_t) _NOEXCEPT { |
| reset(); |
| return *this; |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| typename add_lvalue_reference<_Tp>::type |
| operator[](size_t __i) const { |
| return __ptr_.first()[__i]; |
| } |
| _LIBCPP_INLINE_VISIBILITY |
| pointer get() const _NOEXCEPT { |
| return __ptr_.first(); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| deleter_type& get_deleter() _NOEXCEPT { |
| return __ptr_.second(); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| const deleter_type& get_deleter() const _NOEXCEPT { |
| return __ptr_.second(); |
| } |
| _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_EXPLICIT operator bool() const _NOEXCEPT { |
| return __ptr_.first() != nullptr; |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| pointer release() _NOEXCEPT { |
| pointer __t = __ptr_.first(); |
| __ptr_.first() = pointer(); |
| return __t; |
| } |
| |
| template <class _Pp> |
| _LIBCPP_INLINE_VISIBILITY |
| typename enable_if< |
| _CheckArrayPointerConversion<_Pp>::value |
| >::type |
| reset(_Pp __p) _NOEXCEPT { |
| pointer __tmp = __ptr_.first(); |
| __ptr_.first() = __p; |
| if (__tmp) |
| __ptr_.second()(__tmp); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| void reset(nullptr_t = nullptr) _NOEXCEPT { |
| pointer __tmp = __ptr_.first(); |
| __ptr_.first() = nullptr; |
| if (__tmp) |
| __ptr_.second()(__tmp); |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| void swap(unique_ptr& __u) _NOEXCEPT { |
| __ptr_.swap(__u.__ptr_); |
| } |
| |
| }; |
| |
| template <class _Tp, class _Dp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if< |
| __is_swappable<_Dp>::value, |
| void |
| >::type |
| swap(unique_ptr<_Tp, _Dp>& __x, unique_ptr<_Tp, _Dp>& __y) _NOEXCEPT {__x.swap(__y);} |
| |
| template <class _T1, class _D1, class _T2, class _D2> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator==(const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return __x.get() == __y.get();} |
| |
| template <class _T1, class _D1, class _T2, class _D2> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator!=(const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return !(__x == __y);} |
| |
| template <class _T1, class _D1, class _T2, class _D2> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator< (const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) |
| { |
| typedef typename unique_ptr<_T1, _D1>::pointer _P1; |
| typedef typename unique_ptr<_T2, _D2>::pointer _P2; |
| typedef typename common_type<_P1, _P2>::type _Vp; |
| return less<_Vp>()(__x.get(), __y.get()); |
| } |
| |
| template <class _T1, class _D1, class _T2, class _D2> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator> (const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return __y < __x;} |
| |
| template <class _T1, class _D1, class _T2, class _D2> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator<=(const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return !(__y < __x);} |
| |
| template <class _T1, class _D1, class _T2, class _D2> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator>=(const unique_ptr<_T1, _D1>& __x, const unique_ptr<_T2, _D2>& __y) {return !(__x < __y);} |
| |
| template <class _T1, class _D1> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator==(const unique_ptr<_T1, _D1>& __x, nullptr_t) _NOEXCEPT |
| { |
| return !__x; |
| } |
| |
| template <class _T1, class _D1> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator==(nullptr_t, const unique_ptr<_T1, _D1>& __x) _NOEXCEPT |
| { |
| return !__x; |
| } |
| |
| template <class _T1, class _D1> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator!=(const unique_ptr<_T1, _D1>& __x, nullptr_t) _NOEXCEPT |
| { |
| return static_cast<bool>(__x); |
| } |
| |
| template <class _T1, class _D1> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator!=(nullptr_t, const unique_ptr<_T1, _D1>& __x) _NOEXCEPT |
| { |
| return static_cast<bool>(__x); |
| } |
| |
| template <class _T1, class _D1> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator<(const unique_ptr<_T1, _D1>& __x, nullptr_t) |
| { |
| typedef typename unique_ptr<_T1, _D1>::pointer _P1; |
| return less<_P1>()(__x.get(), nullptr); |
| } |
| |
| template <class _T1, class _D1> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator<(nullptr_t, const unique_ptr<_T1, _D1>& __x) |
| { |
| typedef typename unique_ptr<_T1, _D1>::pointer _P1; |
| return less<_P1>()(nullptr, __x.get()); |
| } |
| |
| template <class _T1, class _D1> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator>(const unique_ptr<_T1, _D1>& __x, nullptr_t) |
| { |
| return nullptr < __x; |
| } |
| |
| template <class _T1, class _D1> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator>(nullptr_t, const unique_ptr<_T1, _D1>& __x) |
| { |
| return __x < nullptr; |
| } |
| |
| template <class _T1, class _D1> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator<=(const unique_ptr<_T1, _D1>& __x, nullptr_t) |
| { |
| return !(nullptr < __x); |
| } |
| |
| template <class _T1, class _D1> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator<=(nullptr_t, const unique_ptr<_T1, _D1>& __x) |
| { |
| return !(__x < nullptr); |
| } |
| |
| template <class _T1, class _D1> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator>=(const unique_ptr<_T1, _D1>& __x, nullptr_t) |
| { |
| return !(__x < nullptr); |
| } |
| |
| template <class _T1, class _D1> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator>=(nullptr_t, const unique_ptr<_T1, _D1>& __x) |
| { |
| return !(nullptr < __x); |
| } |
| |
| #ifdef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template <class _Tp, class _Dp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| unique_ptr<_Tp, _Dp> |
| move(unique_ptr<_Tp, _Dp>& __t) |
| { |
| return unique_ptr<_Tp, _Dp>(__rv<unique_ptr<_Tp, _Dp> >(__t)); |
| } |
| |
| #endif |
| |
| #if _LIBCPP_STD_VER > 11 |
| |
| template<class _Tp> |
| struct __unique_if |
| { |
| typedef unique_ptr<_Tp> __unique_single; |
| }; |
| |
| template<class _Tp> |
| struct __unique_if<_Tp[]> |
| { |
| typedef unique_ptr<_Tp[]> __unique_array_unknown_bound; |
| }; |
| |
| template<class _Tp, size_t _Np> |
| struct __unique_if<_Tp[_Np]> |
| { |
| typedef void __unique_array_known_bound; |
| }; |
| |
| template<class _Tp, class... _Args> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename __unique_if<_Tp>::__unique_single |
| make_unique(_Args&&... __args) |
| { |
| return unique_ptr<_Tp>(new _Tp(_VSTD::forward<_Args>(__args)...)); |
| } |
| |
| template<class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename __unique_if<_Tp>::__unique_array_unknown_bound |
| make_unique(size_t __n) |
| { |
| typedef typename remove_extent<_Tp>::type _Up; |
| return unique_ptr<_Tp>(new _Up[__n]()); |
| } |
| |
| template<class _Tp, class... _Args> |
| typename __unique_if<_Tp>::__unique_array_known_bound |
| make_unique(_Args&&...) = delete; |
| |
| #endif // _LIBCPP_STD_VER > 11 |
| |
| template <class _Tp, class _Dp> |
| #ifdef _LIBCPP_CXX03_LANG |
| struct _LIBCPP_TEMPLATE_VIS hash<unique_ptr<_Tp, _Dp> > |
| #else |
| struct _LIBCPP_TEMPLATE_VIS hash<__enable_hash_helper< |
| unique_ptr<_Tp, _Dp>, typename unique_ptr<_Tp, _Dp>::pointer>> |
| #endif |
| { |
| typedef unique_ptr<_Tp, _Dp> argument_type; |
| typedef size_t result_type; |
| _LIBCPP_INLINE_VISIBILITY |
| result_type operator()(const argument_type& __ptr) const |
| { |
| typedef typename argument_type::pointer pointer; |
| return hash<pointer>()(__ptr.get()); |
| } |
| }; |
| |
| 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(_Tp*) _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>());} |
| }; |
| |
| template <class _Alloc> |
| class __allocator_destructor |
| { |
| typedef allocator_traits<_Alloc> __alloc_traits; |
| public: |
| typedef typename __alloc_traits::pointer pointer; |
| typedef typename __alloc_traits::size_type size_type; |
| private: |
| _Alloc& __alloc_; |
| size_type __s_; |
| public: |
| _LIBCPP_INLINE_VISIBILITY __allocator_destructor(_Alloc& __a, size_type __s) |
| _NOEXCEPT |
| : __alloc_(__a), __s_(__s) {} |
| _LIBCPP_INLINE_VISIBILITY |
| void operator()(pointer __p) _NOEXCEPT |
| {__alloc_traits::deallocate(__alloc_, __p, __s_);} |
| }; |
| |
| template <class _InputIterator, class _ForwardIterator> |
| _ForwardIterator |
| uninitialized_copy(_InputIterator __f, _InputIterator __l, _ForwardIterator __r) |
| { |
| typedef typename iterator_traits<_ForwardIterator>::value_type value_type; |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| _ForwardIterator __s = __r; |
| try |
| { |
| #endif |
| for (; __f != __l; ++__f, (void) ++__r) |
| ::new (static_cast<void*>(_VSTD::addressof(*__r))) value_type(*__f); |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| } |
| catch (...) |
| { |
| for (; __s != __r; ++__s) |
| __s->~value_type(); |
| throw; |
| } |
| #endif |
| return __r; |
| } |
| |
| template <class _InputIterator, class _Size, class _ForwardIterator> |
| _ForwardIterator |
| uninitialized_copy_n(_InputIterator __f, _Size __n, _ForwardIterator __r) |
| { |
| typedef typename iterator_traits<_ForwardIterator>::value_type value_type; |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| _ForwardIterator __s = __r; |
| try |
| { |
| #endif |
| for (; __n > 0; ++__f, (void) ++__r, (void) --__n) |
| ::new (static_cast<void*>(_VSTD::addressof(*__r))) value_type(*__f); |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| } |
| catch (...) |
| { |
| for (; __s != __r; ++__s) |
| __s->~value_type(); |
| throw; |
| } |
| #endif |
| return __r; |
| } |
| |
| template <class _ForwardIterator, class _Tp> |
| void |
| uninitialized_fill(_ForwardIterator __f, _ForwardIterator __l, const _Tp& __x) |
| { |
| typedef typename iterator_traits<_ForwardIterator>::value_type value_type; |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| _ForwardIterator __s = __f; |
| try |
| { |
| #endif |
| for (; __f != __l; ++__f) |
| ::new (static_cast<void*>(_VSTD::addressof(*__f))) value_type(__x); |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| } |
| catch (...) |
| { |
| for (; __s != __f; ++__s) |
| __s->~value_type(); |
| throw; |
| } |
| #endif |
| } |
| |
| template <class _ForwardIterator, class _Size, class _Tp> |
| _ForwardIterator |
| uninitialized_fill_n(_ForwardIterator __f, _Size __n, const _Tp& __x) |
| { |
| typedef typename iterator_traits<_ForwardIterator>::value_type value_type; |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| _ForwardIterator __s = __f; |
| try |
| { |
| #endif |
| for (; __n > 0; ++__f, (void) --__n) |
| ::new (static_cast<void*>(_VSTD::addressof(*__f))) value_type(__x); |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| } |
| catch (...) |
| { |
| for (; __s != __f; ++__s) |
| __s->~value_type(); |
| throw; |
| } |
| #endif |
| return __f; |
| } |
| |
| #if _LIBCPP_STD_VER > 14 |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| void destroy_at(_Tp* __loc) { |
| _LIBCPP_ASSERT(__loc, "null pointer given to destroy_at"); |
| __loc->~_Tp(); |
| } |
| |
| template <class _ForwardIterator> |
| inline _LIBCPP_INLINE_VISIBILITY |
| void destroy(_ForwardIterator __first, _ForwardIterator __last) { |
| for (; __first != __last; ++__first) |
| _VSTD::destroy_at(_VSTD::addressof(*__first)); |
| } |
| |
| template <class _ForwardIterator, class _Size> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _ForwardIterator destroy_n(_ForwardIterator __first, _Size __n) { |
| for (; __n > 0; (void)++__first, --__n) |
| _VSTD::destroy_at(_VSTD::addressof(*__first)); |
| return __first; |
| } |
| |
| template <class _ForwardIterator> |
| inline _LIBCPP_INLINE_VISIBILITY |
| void uninitialized_default_construct(_ForwardIterator __first, _ForwardIterator __last) { |
| using _Vt = typename iterator_traits<_ForwardIterator>::value_type; |
| auto __idx = __first; |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| try { |
| #endif |
| for (; __idx != __last; ++__idx) |
| ::new((void*)_VSTD::addressof(*__idx)) _Vt; |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| } catch (...) { |
| _VSTD::destroy(__first, __idx); |
| throw; |
| } |
| #endif |
| } |
| |
| template <class _ForwardIterator, class _Size> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _ForwardIterator uninitialized_default_construct_n(_ForwardIterator __first, _Size __n) { |
| using _Vt = typename iterator_traits<_ForwardIterator>::value_type; |
| auto __idx = __first; |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| try { |
| #endif |
| for (; __n > 0; (void)++__idx, --__n) |
| ::new((void*)_VSTD::addressof(*__idx)) _Vt; |
| return __idx; |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| } catch (...) { |
| _VSTD::destroy(__first, __idx); |
| throw; |
| } |
| #endif |
| } |
| |
| |
| template <class _ForwardIterator> |
| inline _LIBCPP_INLINE_VISIBILITY |
| void uninitialized_value_construct(_ForwardIterator __first, _ForwardIterator __last) { |
| using _Vt = typename iterator_traits<_ForwardIterator>::value_type; |
| auto __idx = __first; |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| try { |
| #endif |
| for (; __idx != __last; ++__idx) |
| ::new((void*)_VSTD::addressof(*__idx)) _Vt(); |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| } catch (...) { |
| _VSTD::destroy(__first, __idx); |
| throw; |
| } |
| #endif |
| } |
| |
| template <class _ForwardIterator, class _Size> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _ForwardIterator uninitialized_value_construct_n(_ForwardIterator __first, _Size __n) { |
| using _Vt = typename iterator_traits<_ForwardIterator>::value_type; |
| auto __idx = __first; |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| try { |
| #endif |
| for (; __n > 0; (void)++__idx, --__n) |
| ::new((void*)_VSTD::addressof(*__idx)) _Vt(); |
| return __idx; |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| } catch (...) { |
| _VSTD::destroy(__first, __idx); |
| throw; |
| } |
| #endif |
| } |
| |
| |
| template <class _InputIt, class _ForwardIt> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _ForwardIt uninitialized_move(_InputIt __first, _InputIt __last, _ForwardIt __first_res) { |
| using _Vt = typename iterator_traits<_ForwardIt>::value_type; |
| auto __idx = __first_res; |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| try { |
| #endif |
| for (; __first != __last; (void)++__idx, ++__first) |
| ::new((void*)_VSTD::addressof(*__idx)) _Vt(std::move(*__first)); |
| return __idx; |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| } catch (...) { |
| _VSTD::destroy(__first_res, __idx); |
| throw; |
| } |
| #endif |
| } |
| |
| template <class _InputIt, class _Size, class _ForwardIt> |
| inline _LIBCPP_INLINE_VISIBILITY |
| pair<_InputIt, _ForwardIt> |
| uninitialized_move_n(_InputIt __first, _Size __n, _ForwardIt __first_res) { |
| using _Vt = typename iterator_traits<_ForwardIt>::value_type; |
| auto __idx = __first_res; |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| try { |
| #endif |
| for (; __n > 0; ++__idx, (void)++__first, --__n) |
| ::new((void*)_VSTD::addressof(*__idx)) _Vt(std::move(*__first)); |
| return {__first, __idx}; |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| } catch (...) { |
| _VSTD::destroy(__first_res, __idx); |
| throw; |
| } |
| #endif |
| } |
| |
| |
| #endif // _LIBCPP_STD_VER > 14 |
| |
| // NOTE: Relaxed and acq/rel atomics (for increment and decrement respectively) |
| // should be sufficient for thread safety. |
| // See https://bugs.llvm.org/show_bug.cgi?id=22803 |
| #if defined(__clang__) && __has_builtin(__atomic_add_fetch) \ |
| && defined(__ATOMIC_RELAXED) \ |
| && defined(__ATOMIC_ACQ_REL) |
| # define _LIBCPP_HAS_BUILTIN_ATOMIC_SUPPORT |
| #elif !defined(__clang__) && defined(_GNUC_VER) && _GNUC_VER >= 407 |
| # define _LIBCPP_HAS_BUILTIN_ATOMIC_SUPPORT |
| #endif |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY _Tp |
| __libcpp_atomic_refcount_increment(_Tp& __t) _NOEXCEPT |
| { |
| #if defined(_LIBCPP_HAS_BUILTIN_ATOMIC_SUPPORT) && !defined(_LIBCPP_HAS_NO_THREADS) |
| return __atomic_add_fetch(&__t, 1, __ATOMIC_RELAXED); |
| #else |
| return __t += 1; |
| #endif |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY _Tp |
| __libcpp_atomic_refcount_decrement(_Tp& __t) _NOEXCEPT |
| { |
| #if defined(_LIBCPP_HAS_BUILTIN_ATOMIC_SUPPORT) && !defined(_LIBCPP_HAS_NO_THREADS) |
| return __atomic_add_fetch(&__t, -1, __ATOMIC_ACQ_REL); |
| #else |
| return __t -= 1; |
| #endif |
| } |
| |
| class _LIBCPP_EXCEPTION_ABI bad_weak_ptr |
| : public std::exception |
| { |
| public: |
| virtual ~bad_weak_ptr() _NOEXCEPT; |
| virtual const char* what() const _NOEXCEPT; |
| }; |
| |
| _LIBCPP_NORETURN inline _LIBCPP_INLINE_VISIBILITY |
| void __throw_bad_weak_ptr() |
| { |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| throw bad_weak_ptr(); |
| #else |
| _VSTD::abort(); |
| #endif |
| } |
| |
| template<class _Tp> class _LIBCPP_TEMPLATE_VIS weak_ptr; |
| |
| class _LIBCPP_TYPE_VIS __shared_count |
| { |
| __shared_count(const __shared_count&); |
| __shared_count& operator=(const __shared_count&); |
| |
| protected: |
| long __shared_owners_; |
| virtual ~__shared_count(); |
| private: |
| virtual void __on_zero_shared() _NOEXCEPT = 0; |
| |
| public: |
| _LIBCPP_INLINE_VISIBILITY |
| explicit __shared_count(long __refs = 0) _NOEXCEPT |
| : __shared_owners_(__refs) {} |
| |
| #if defined(_LIBCPP_BUILDING_LIBRARY) && \ |
| defined(_LIBCPP_DEPRECATED_ABI_LEGACY_LIBRARY_DEFINITIONS_FOR_INLINE_FUNCTIONS) |
| void __add_shared() _NOEXCEPT; |
| bool __release_shared() _NOEXCEPT; |
| #else |
| _LIBCPP_INLINE_VISIBILITY |
| void __add_shared() _NOEXCEPT { |
| __libcpp_atomic_refcount_increment(__shared_owners_); |
| } |
| _LIBCPP_INLINE_VISIBILITY |
| bool __release_shared() _NOEXCEPT { |
| if (__libcpp_atomic_refcount_decrement(__shared_owners_) == -1) { |
| __on_zero_shared(); |
| return true; |
| } |
| return false; |
| } |
| #endif |
| _LIBCPP_INLINE_VISIBILITY |
| long use_count() const _NOEXCEPT { |
| return __libcpp_relaxed_load(&__shared_owners_) + 1; |
| } |
| }; |
| |
| class _LIBCPP_TYPE_VIS __shared_weak_count |
| : private __shared_count |
| { |
| long __shared_weak_owners_; |
| |
| public: |
| _LIBCPP_INLINE_VISIBILITY |
| explicit __shared_weak_count(long __refs = 0) _NOEXCEPT |
| : __shared_count(__refs), |
| __shared_weak_owners_(__refs) {} |
| protected: |
| virtual ~__shared_weak_count(); |
| |
| public: |
| #if defined(_LIBCPP_BUILDING_LIBRARY) && \ |
| defined(_LIBCPP_DEPRECATED_ABI_LEGACY_LIBRARY_DEFINITIONS_FOR_INLINE_FUNCTIONS) |
| void __add_shared() _NOEXCEPT; |
| void __add_weak() _NOEXCEPT; |
| void __release_shared() _NOEXCEPT; |
| #else |
| _LIBCPP_INLINE_VISIBILITY |
| void __add_shared() _NOEXCEPT { |
| __shared_count::__add_shared(); |
| } |
| _LIBCPP_INLINE_VISIBILITY |
| void __add_weak() _NOEXCEPT { |
| __libcpp_atomic_refcount_increment(__shared_weak_owners_); |
| } |
| _LIBCPP_INLINE_VISIBILITY |
| void __release_shared() _NOEXCEPT { |
| if (__shared_count::__release_shared()) |
| __release_weak(); |
| } |
| #endif |
| void __release_weak() _NOEXCEPT; |
| _LIBCPP_INLINE_VISIBILITY |
| long use_count() const _NOEXCEPT {return __shared_count::use_count();} |
| __shared_weak_count* lock() _NOEXCEPT; |
| |
| // Define the function out only if we build static libc++ without RTTI. |
| // Otherwise we may break clients who need to compile their projects with |
| // -fno-rtti and yet link against a libc++.dylib compiled |
| // without -fno-rtti. |
| #if !defined(_LIBCPP_NO_RTTI) || !defined(_LIBCPP_BUILD_STATIC) |
| virtual const void* __get_deleter(const type_info&) const _NOEXCEPT; |
| #endif |
| private: |
| virtual void __on_zero_shared_weak() _NOEXCEPT = 0; |
| }; |
| |
| template <class _Tp, class _Dp, class _Alloc> |
| class __shared_ptr_pointer |
| : public __shared_weak_count |
| { |
| __compressed_pair<__compressed_pair<_Tp, _Dp>, _Alloc> __data_; |
| public: |
| _LIBCPP_INLINE_VISIBILITY |
| __shared_ptr_pointer(_Tp __p, _Dp __d, _Alloc __a) |
| : __data_(__compressed_pair<_Tp, _Dp>(__p, _VSTD::move(__d)), _VSTD::move(__a)) {} |
| |
| #ifndef _LIBCPP_NO_RTTI |
| virtual const void* __get_deleter(const type_info&) const _NOEXCEPT; |
| #endif |
| |
| private: |
| virtual void __on_zero_shared() _NOEXCEPT; |
| virtual void __on_zero_shared_weak() _NOEXCEPT; |
| }; |
| |
| #ifndef _LIBCPP_NO_RTTI |
| |
| template <class _Tp, class _Dp, class _Alloc> |
| const void* |
| __shared_ptr_pointer<_Tp, _Dp, _Alloc>::__get_deleter(const type_info& __t) const _NOEXCEPT |
| { |
| return __t == typeid(_Dp) ? _VSTD::addressof(__data_.first().second()) : nullptr; |
| } |
| |
| #endif // _LIBCPP_NO_RTTI |
| |
| template <class _Tp, class _Dp, class _Alloc> |
| void |
| __shared_ptr_pointer<_Tp, _Dp, _Alloc>::__on_zero_shared() _NOEXCEPT |
| { |
| __data_.first().second()(__data_.first().first()); |
| __data_.first().second().~_Dp(); |
| } |
| |
| template <class _Tp, class _Dp, class _Alloc> |
| void |
| __shared_ptr_pointer<_Tp, _Dp, _Alloc>::__on_zero_shared_weak() _NOEXCEPT |
| { |
| typedef typename __allocator_traits_rebind<_Alloc, __shared_ptr_pointer>::type _Al; |
| typedef allocator_traits<_Al> _ATraits; |
| typedef pointer_traits<typename _ATraits::pointer> _PTraits; |
| |
| _Al __a(__data_.second()); |
| __data_.second().~_Alloc(); |
| __a.deallocate(_PTraits::pointer_to(*this), 1); |
| } |
| |
| template <class _Tp, class _Alloc> |
| class __shared_ptr_emplace |
| : public __shared_weak_count |
| { |
| __compressed_pair<_Alloc, _Tp> __data_; |
| public: |
| #ifndef _LIBCPP_HAS_NO_VARIADICS |
| |
| _LIBCPP_INLINE_VISIBILITY |
| __shared_ptr_emplace(_Alloc __a) |
| : __data_(_VSTD::move(__a)) {} |
| |
| template <class ..._Args> |
| _LIBCPP_INLINE_VISIBILITY |
| __shared_ptr_emplace(_Alloc __a, _Args&& ...__args) |
| : __data_(piecewise_construct, _VSTD::forward_as_tuple(__a), |
| _VSTD::forward_as_tuple(_VSTD::forward<_Args>(__args)...)) {} |
| |
| #else // _LIBCPP_HAS_NO_VARIADICS |
| |
| _LIBCPP_INLINE_VISIBILITY |
| __shared_ptr_emplace(_Alloc __a) |
| : __data_(__a) {} |
| |
| template <class _A0> |
| _LIBCPP_INLINE_VISIBILITY |
| __shared_ptr_emplace(_Alloc __a, _A0& __a0) |
| : __data_(__a, _Tp(__a0)) {} |
| |
| template <class _A0, class _A1> |
| _LIBCPP_INLINE_VISIBILITY |
| __shared_ptr_emplace(_Alloc __a, _A0& __a0, _A1& __a1) |
| : __data_(__a, _Tp(__a0, __a1)) {} |
| |
| template <class _A0, class _A1, class _A2> |
| _LIBCPP_INLINE_VISIBILITY |
| __shared_ptr_emplace(_Alloc __a, _A0& __a0, _A1& __a1, _A2& __a2) |
| : __data_(__a, _Tp(__a0, __a1, __a2)) {} |
| |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| |
| private: |
| virtual void __on_zero_shared() _NOEXCEPT; |
| virtual void __on_zero_shared_weak() _NOEXCEPT; |
| public: |
| _LIBCPP_INLINE_VISIBILITY |
| _Tp* get() _NOEXCEPT {return _VSTD::addressof(__data_.second());} |
| }; |
| |
| template <class _Tp, class _Alloc> |
| void |
| __shared_ptr_emplace<_Tp, _Alloc>::__on_zero_shared() _NOEXCEPT |
| { |
| __data_.second().~_Tp(); |
| } |
| |
| template <class _Tp, class _Alloc> |
| void |
| __shared_ptr_emplace<_Tp, _Alloc>::__on_zero_shared_weak() _NOEXCEPT |
| { |
| typedef typename __allocator_traits_rebind<_Alloc, __shared_ptr_emplace>::type _Al; |
| typedef allocator_traits<_Al> _ATraits; |
| typedef pointer_traits<typename _ATraits::pointer> _PTraits; |
| _Al __a(__data_.first()); |
| __data_.first().~_Alloc(); |
| __a.deallocate(_PTraits::pointer_to(*this), 1); |
| } |
| |
| struct __shared_ptr_dummy_rebind_allocator_type; |
| template <> |
| class _LIBCPP_TEMPLATE_VIS allocator<__shared_ptr_dummy_rebind_allocator_type> |
| { |
| public: |
| template <class _Other> |
| struct rebind |
| { |
| typedef allocator<_Other> other; |
| }; |
| }; |
| |
| template<class _Tp> class _LIBCPP_TEMPLATE_VIS enable_shared_from_this; |
| |
| template<class _Tp> |
| class _LIBCPP_TEMPLATE_VIS shared_ptr |
| { |
| public: |
| typedef _Tp element_type; |
| |
| #if _LIBCPP_STD_VER > 14 |
| typedef weak_ptr<_Tp> weak_type; |
| #endif |
| private: |
| element_type* __ptr_; |
| __shared_weak_count* __cntrl_; |
| |
| struct __nat {int __for_bool_;}; |
| public: |
| _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_CONSTEXPR shared_ptr() _NOEXCEPT; |
| _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_CONSTEXPR shared_ptr(nullptr_t) _NOEXCEPT; |
| template<class _Yp> |
| explicit shared_ptr(_Yp* __p, |
| typename enable_if<is_convertible<_Yp*, element_type*>::value, __nat>::type = __nat()); |
| template<class _Yp, class _Dp> |
| shared_ptr(_Yp* __p, _Dp __d, |
| typename enable_if<is_convertible<_Yp*, element_type*>::value, __nat>::type = __nat()); |
| template<class _Yp, class _Dp, class _Alloc> |
| shared_ptr(_Yp* __p, _Dp __d, _Alloc __a, |
| typename enable_if<is_convertible<_Yp*, element_type*>::value, __nat>::type = __nat()); |
| template <class _Dp> shared_ptr(nullptr_t __p, _Dp __d); |
| template <class _Dp, class _Alloc> shared_ptr(nullptr_t __p, _Dp __d, _Alloc __a); |
| template<class _Yp> _LIBCPP_INLINE_VISIBILITY shared_ptr(const shared_ptr<_Yp>& __r, element_type* __p) _NOEXCEPT; |
| _LIBCPP_INLINE_VISIBILITY |
| shared_ptr(const shared_ptr& __r) _NOEXCEPT; |
| template<class _Yp> |
| _LIBCPP_INLINE_VISIBILITY |
| shared_ptr(const shared_ptr<_Yp>& __r, |
| typename enable_if<is_convertible<_Yp*, element_type*>::value, __nat>::type = __nat()) |
| _NOEXCEPT; |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| _LIBCPP_INLINE_VISIBILITY |
| shared_ptr(shared_ptr&& __r) _NOEXCEPT; |
| template<class _Yp> _LIBCPP_INLINE_VISIBILITY shared_ptr(shared_ptr<_Yp>&& __r, |
| typename enable_if<is_convertible<_Yp*, element_type*>::value, __nat>::type = __nat()) |
| _NOEXCEPT; |
| #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| template<class _Yp> explicit shared_ptr(const weak_ptr<_Yp>& __r, |
| typename enable_if<is_convertible<_Yp*, element_type*>::value, __nat>::type= __nat()); |
| #if _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR) |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| template<class _Yp> |
| shared_ptr(auto_ptr<_Yp>&& __r, |
| typename enable_if<is_convertible<_Yp*, element_type*>::value, __nat>::type = __nat()); |
| #else |
| template<class _Yp> |
| shared_ptr(auto_ptr<_Yp> __r, |
| typename enable_if<is_convertible<_Yp*, element_type*>::value, __nat>::type = __nat()); |
| #endif |
| #endif |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| template <class _Yp, class _Dp> |
| shared_ptr(unique_ptr<_Yp, _Dp>&&, |
| typename enable_if |
| < |
| !is_lvalue_reference<_Dp>::value && |
| !is_array<_Yp>::value && |
| is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, element_type*>::value, |
| __nat |
| >::type = __nat()); |
| template <class _Yp, class _Dp> |
| shared_ptr(unique_ptr<_Yp, _Dp>&&, |
| typename enable_if |
| < |
| is_lvalue_reference<_Dp>::value && |
| !is_array<_Yp>::value && |
| is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, element_type*>::value, |
| __nat |
| >::type = __nat()); |
| #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| template <class _Yp, class _Dp> |
| shared_ptr(unique_ptr<_Yp, _Dp>, |
| typename enable_if |
| < |
| !is_lvalue_reference<_Dp>::value && |
| !is_array<_Yp>::value && |
| is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, element_type*>::value, |
| __nat |
| >::type = __nat()); |
| template <class _Yp, class _Dp> |
| shared_ptr(unique_ptr<_Yp, _Dp>, |
| typename enable_if |
| < |
| is_lvalue_reference<_Dp>::value && |
| !is_array<_Yp>::value && |
| is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, element_type*>::value, |
| __nat |
| >::type = __nat()); |
| #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| ~shared_ptr(); |
| |
| _LIBCPP_INLINE_VISIBILITY |
| shared_ptr& operator=(const shared_ptr& __r) _NOEXCEPT; |
| template<class _Yp> |
| typename enable_if |
| < |
| is_convertible<_Yp*, element_type*>::value, |
| shared_ptr& |
| >::type |
| _LIBCPP_INLINE_VISIBILITY |
| operator=(const shared_ptr<_Yp>& __r) _NOEXCEPT; |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| _LIBCPP_INLINE_VISIBILITY |
| shared_ptr& operator=(shared_ptr&& __r) _NOEXCEPT; |
| template<class _Yp> |
| typename enable_if |
| < |
| is_convertible<_Yp*, element_type*>::value, |
| shared_ptr<_Tp>& |
| >::type |
| _LIBCPP_INLINE_VISIBILITY |
| operator=(shared_ptr<_Yp>&& __r); |
| #if _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR) |
| template<class _Yp> |
| _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| !is_array<_Yp>::value && |
| is_convertible<_Yp*, element_type*>::value, |
| shared_ptr |
| >::type& |
| operator=(auto_ptr<_Yp>&& __r); |
| #endif |
| #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| #if _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR) |
| template<class _Yp> |
| _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| !is_array<_Yp>::value && |
| is_convertible<_Yp*, element_type*>::value, |
| shared_ptr& |
| >::type |
| operator=(auto_ptr<_Yp> __r); |
| #endif |
| #endif |
| template <class _Yp, class _Dp> |
| typename enable_if |
| < |
| !is_array<_Yp>::value && |
| is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, element_type*>::value, |
| shared_ptr& |
| >::type |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| _LIBCPP_INLINE_VISIBILITY |
| operator=(unique_ptr<_Yp, _Dp>&& __r); |
| #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| _LIBCPP_INLINE_VISIBILITY |
| operator=(unique_ptr<_Yp, _Dp> __r); |
| #endif |
| |
| _LIBCPP_INLINE_VISIBILITY |
| void swap(shared_ptr& __r) _NOEXCEPT; |
| _LIBCPP_INLINE_VISIBILITY |
| void reset() _NOEXCEPT; |
| template<class _Yp> |
| typename enable_if |
| < |
| is_convertible<_Yp*, element_type*>::value, |
| void |
| >::type |
| _LIBCPP_INLINE_VISIBILITY |
| reset(_Yp* __p); |
| template<class _Yp, class _Dp> |
| typename enable_if |
| < |
| is_convertible<_Yp*, element_type*>::value, |
| void |
| >::type |
| _LIBCPP_INLINE_VISIBILITY |
| reset(_Yp* __p, _Dp __d); |
| template<class _Yp, class _Dp, class _Alloc> |
| typename enable_if |
| < |
| is_convertible<_Yp*, element_type*>::value, |
| void |
| >::type |
| _LIBCPP_INLINE_VISIBILITY |
| reset(_Yp* __p, _Dp __d, _Alloc __a); |
| |
| _LIBCPP_INLINE_VISIBILITY |
| element_type* get() const _NOEXCEPT {return __ptr_;} |
| _LIBCPP_INLINE_VISIBILITY |
| typename add_lvalue_reference<element_type>::type operator*() const _NOEXCEPT |
| {return *__ptr_;} |
| _LIBCPP_INLINE_VISIBILITY |
| element_type* operator->() const _NOEXCEPT {return __ptr_;} |
| _LIBCPP_INLINE_VISIBILITY |
| long use_count() const _NOEXCEPT {return __cntrl_ ? __cntrl_->use_count() : 0;} |
| _LIBCPP_INLINE_VISIBILITY |
| bool unique() const _NOEXCEPT {return use_count() == 1;} |
| _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_EXPLICIT operator bool() const _NOEXCEPT {return get() != 0;} |
| template <class _Up> |
| _LIBCPP_INLINE_VISIBILITY |
| bool owner_before(shared_ptr<_Up> const& __p) const _NOEXCEPT |
| {return __cntrl_ < __p.__cntrl_;} |
| template <class _Up> |
| _LIBCPP_INLINE_VISIBILITY |
| bool owner_before(weak_ptr<_Up> const& __p) const _NOEXCEPT |
| {return __cntrl_ < __p.__cntrl_;} |
| _LIBCPP_INLINE_VISIBILITY |
| bool |
| __owner_equivalent(const shared_ptr& __p) const |
| {return __cntrl_ == __p.__cntrl_;} |
| |
| #ifndef _LIBCPP_NO_RTTI |
| template <class _Dp> |
| _LIBCPP_INLINE_VISIBILITY |
| _Dp* __get_deleter() const _NOEXCEPT |
| {return static_cast<_Dp*>(__cntrl_ |
| ? const_cast<void *>(__cntrl_->__get_deleter(typeid(_Dp))) |
| : nullptr);} |
| #endif // _LIBCPP_NO_RTTI |
| |
| #ifndef _LIBCPP_HAS_NO_VARIADICS |
| |
| template<class ..._Args> |
| static |
| shared_ptr<_Tp> |
| make_shared(_Args&& ...__args); |
| |
| template<class _Alloc, class ..._Args> |
| static |
| shared_ptr<_Tp> |
| allocate_shared(const _Alloc& __a, _Args&& ...__args); |
| |
| #else // _LIBCPP_HAS_NO_VARIADICS |
| |
| static shared_ptr<_Tp> make_shared(); |
| |
| template<class _A0> |
| static shared_ptr<_Tp> make_shared(_A0&); |
| |
| template<class _A0, class _A1> |
| static shared_ptr<_Tp> make_shared(_A0&, _A1&); |
| |
| template<class _A0, class _A1, class _A2> |
| static shared_ptr<_Tp> make_shared(_A0&, _A1&, _A2&); |
| |
| template<class _Alloc> |
| static shared_ptr<_Tp> |
| allocate_shared(const _Alloc& __a); |
| |
| template<class _Alloc, class _A0> |
| static shared_ptr<_Tp> |
| allocate_shared(const _Alloc& __a, _A0& __a0); |
| |
| template<class _Alloc, class _A0, class _A1> |
| static shared_ptr<_Tp> |
| allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1); |
| |
| template<class _Alloc, class _A0, class _A1, class _A2> |
| static shared_ptr<_Tp> |
| allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1, _A2& __a2); |
| |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| |
| private: |
| template <class _Yp, bool = is_function<_Yp>::value> |
| struct __shared_ptr_default_allocator |
| { |
| typedef allocator<_Yp> type; |
| }; |
| |
| template <class _Yp> |
| struct __shared_ptr_default_allocator<_Yp, true> |
| { |
| typedef allocator<__shared_ptr_dummy_rebind_allocator_type> type; |
| }; |
| |
| template <class _Yp, class _OrigPtr> |
| _LIBCPP_INLINE_VISIBILITY |
| typename enable_if<is_convertible<_OrigPtr*, |
| const enable_shared_from_this<_Yp>* |
| >::value, |
| void>::type |
| __enable_weak_this(const enable_shared_from_this<_Yp>* __e, |
| _OrigPtr* __ptr) _NOEXCEPT |
| { |
| typedef typename remove_cv<_Yp>::type _RawYp; |
| if (__e && __e->__weak_this_.expired()) |
| { |
| __e->__weak_this_ = shared_ptr<_RawYp>(*this, |
| const_cast<_RawYp*>(static_cast<const _Yp*>(__ptr))); |
| } |
| } |
| |
| _LIBCPP_INLINE_VISIBILITY void __enable_weak_this(...) _NOEXCEPT {} |
| |
| template <class _Up> friend class _LIBCPP_TEMPLATE_VIS shared_ptr; |
| template <class _Up> friend class _LIBCPP_TEMPLATE_VIS weak_ptr; |
| }; |
| |
| |
| template<class _Tp> |
| inline |
| _LIBCPP_CONSTEXPR |
| shared_ptr<_Tp>::shared_ptr() _NOEXCEPT |
| : __ptr_(0), |
| __cntrl_(0) |
| { |
| } |
| |
| template<class _Tp> |
| inline |
| _LIBCPP_CONSTEXPR |
| shared_ptr<_Tp>::shared_ptr(nullptr_t) _NOEXCEPT |
| : __ptr_(0), |
| __cntrl_(0) |
| { |
| } |
| |
| template<class _Tp> |
| template<class _Yp> |
| shared_ptr<_Tp>::shared_ptr(_Yp* __p, |
| typename enable_if<is_convertible<_Yp*, element_type*>::value, __nat>::type) |
| : __ptr_(__p) |
| { |
| unique_ptr<_Yp> __hold(__p); |
| typedef typename __shared_ptr_default_allocator<_Yp>::type _AllocT; |
| typedef __shared_ptr_pointer<_Yp*, default_delete<_Yp>, _AllocT > _CntrlBlk; |
| __cntrl_ = new _CntrlBlk(__p, default_delete<_Yp>(), _AllocT()); |
| __hold.release(); |
| __enable_weak_this(__p, __p); |
| } |
| |
| template<class _Tp> |
| template<class _Yp, class _Dp> |
| shared_ptr<_Tp>::shared_ptr(_Yp* __p, _Dp __d, |
| typename enable_if<is_convertible<_Yp*, element_type*>::value, __nat>::type) |
| : __ptr_(__p) |
| { |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| try |
| { |
| #endif // _LIBCPP_NO_EXCEPTIONS |
| typedef typename __shared_ptr_default_allocator<_Yp>::type _AllocT; |
| typedef __shared_ptr_pointer<_Yp*, _Dp, _AllocT > _CntrlBlk; |
| __cntrl_ = new _CntrlBlk(__p, __d, _AllocT()); |
| __enable_weak_this(__p, __p); |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| } |
| catch (...) |
| { |
| __d(__p); |
| throw; |
| } |
| #endif // _LIBCPP_NO_EXCEPTIONS |
| } |
| |
| template<class _Tp> |
| template<class _Dp> |
| shared_ptr<_Tp>::shared_ptr(nullptr_t __p, _Dp __d) |
| : __ptr_(0) |
| { |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| try |
| { |
| #endif // _LIBCPP_NO_EXCEPTIONS |
| typedef typename __shared_ptr_default_allocator<_Tp>::type _AllocT; |
| typedef __shared_ptr_pointer<nullptr_t, _Dp, _AllocT > _CntrlBlk; |
| __cntrl_ = new _CntrlBlk(__p, __d, _AllocT()); |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| } |
| catch (...) |
| { |
| __d(__p); |
| throw; |
| } |
| #endif // _LIBCPP_NO_EXCEPTIONS |
| } |
| |
| template<class _Tp> |
| template<class _Yp, class _Dp, class _Alloc> |
| shared_ptr<_Tp>::shared_ptr(_Yp* __p, _Dp __d, _Alloc __a, |
| typename enable_if<is_convertible<_Yp*, element_type*>::value, __nat>::type) |
| : __ptr_(__p) |
| { |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| try |
| { |
| #endif // _LIBCPP_NO_EXCEPTIONS |
| typedef __shared_ptr_pointer<_Yp*, _Dp, _Alloc> _CntrlBlk; |
| typedef typename __allocator_traits_rebind<_Alloc, _CntrlBlk>::type _A2; |
| typedef __allocator_destructor<_A2> _D2; |
| _A2 __a2(__a); |
| unique_ptr<_CntrlBlk, _D2> __hold2(__a2.allocate(1), _D2(__a2, 1)); |
| ::new(static_cast<void*>(_VSTD::addressof(*__hold2.get()))) |
| _CntrlBlk(__p, __d, __a); |
| __cntrl_ = _VSTD::addressof(*__hold2.release()); |
| __enable_weak_this(__p, __p); |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| } |
| catch (...) |
| { |
| __d(__p); |
| throw; |
| } |
| #endif // _LIBCPP_NO_EXCEPTIONS |
| } |
| |
| template<class _Tp> |
| template<class _Dp, class _Alloc> |
| shared_ptr<_Tp>::shared_ptr(nullptr_t __p, _Dp __d, _Alloc __a) |
| : __ptr_(0) |
| { |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| try |
| { |
| #endif // _LIBCPP_NO_EXCEPTIONS |
| typedef __shared_ptr_pointer<nullptr_t, _Dp, _Alloc> _CntrlBlk; |
| typedef typename __allocator_traits_rebind<_Alloc, _CntrlBlk>::type _A2; |
| typedef __allocator_destructor<_A2> _D2; |
| _A2 __a2(__a); |
| unique_ptr<_CntrlBlk, _D2> __hold2(__a2.allocate(1), _D2(__a2, 1)); |
| ::new(static_cast<void*>(_VSTD::addressof(*__hold2.get()))) |
| _CntrlBlk(__p, __d, __a); |
| __cntrl_ = _VSTD::addressof(*__hold2.release()); |
| #ifndef _LIBCPP_NO_EXCEPTIONS |
| } |
| catch (...) |
| { |
| __d(__p); |
| throw; |
| } |
| #endif // _LIBCPP_NO_EXCEPTIONS |
| } |
| |
| template<class _Tp> |
| template<class _Yp> |
| inline |
| shared_ptr<_Tp>::shared_ptr(const shared_ptr<_Yp>& __r, element_type *__p) _NOEXCEPT |
| : __ptr_(__p), |
| __cntrl_(__r.__cntrl_) |
| { |
| if (__cntrl_) |
| __cntrl_->__add_shared(); |
| } |
| |
| template<class _Tp> |
| inline |
| shared_ptr<_Tp>::shared_ptr(const shared_ptr& __r) _NOEXCEPT |
| : __ptr_(__r.__ptr_), |
| __cntrl_(__r.__cntrl_) |
| { |
| if (__cntrl_) |
| __cntrl_->__add_shared(); |
| } |
| |
| template<class _Tp> |
| template<class _Yp> |
| inline |
| shared_ptr<_Tp>::shared_ptr(const shared_ptr<_Yp>& __r, |
| typename enable_if<is_convertible<_Yp*, element_type*>::value, __nat>::type) |
| _NOEXCEPT |
| : __ptr_(__r.__ptr_), |
| __cntrl_(__r.__cntrl_) |
| { |
| if (__cntrl_) |
| __cntrl_->__add_shared(); |
| } |
| |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template<class _Tp> |
| inline |
| shared_ptr<_Tp>::shared_ptr(shared_ptr&& __r) _NOEXCEPT |
| : __ptr_(__r.__ptr_), |
| __cntrl_(__r.__cntrl_) |
| { |
| __r.__ptr_ = 0; |
| __r.__cntrl_ = 0; |
| } |
| |
| template<class _Tp> |
| template<class _Yp> |
| inline |
| shared_ptr<_Tp>::shared_ptr(shared_ptr<_Yp>&& __r, |
| typename enable_if<is_convertible<_Yp*, element_type*>::value, __nat>::type) |
| _NOEXCEPT |
| : __ptr_(__r.__ptr_), |
| __cntrl_(__r.__cntrl_) |
| { |
| __r.__ptr_ = 0; |
| __r.__cntrl_ = 0; |
| } |
| |
| #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| #if _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR) |
| template<class _Tp> |
| template<class _Yp> |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| shared_ptr<_Tp>::shared_ptr(auto_ptr<_Yp>&& __r, |
| #else |
| shared_ptr<_Tp>::shared_ptr(auto_ptr<_Yp> __r, |
| #endif |
| typename enable_if<is_convertible<_Yp*, element_type*>::value, __nat>::type) |
| : __ptr_(__r.get()) |
| { |
| typedef __shared_ptr_pointer<_Yp*, default_delete<_Yp>, allocator<_Yp> > _CntrlBlk; |
| __cntrl_ = new _CntrlBlk(__r.get(), default_delete<_Yp>(), allocator<_Yp>()); |
| __enable_weak_this(__r.get(), __r.get()); |
| __r.release(); |
| } |
| #endif |
| |
| template<class _Tp> |
| template <class _Yp, class _Dp> |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| shared_ptr<_Tp>::shared_ptr(unique_ptr<_Yp, _Dp>&& __r, |
| #else |
| shared_ptr<_Tp>::shared_ptr(unique_ptr<_Yp, _Dp> __r, |
| #endif |
| typename enable_if |
| < |
| !is_lvalue_reference<_Dp>::value && |
| !is_array<_Yp>::value && |
| is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, element_type*>::value, |
| __nat |
| >::type) |
| : __ptr_(__r.get()) |
| { |
| #if _LIBCPP_STD_VER > 11 |
| if (__ptr_ == nullptr) |
| __cntrl_ = nullptr; |
| else |
| #endif |
| { |
| typedef typename __shared_ptr_default_allocator<_Yp>::type _AllocT; |
| typedef __shared_ptr_pointer<_Yp*, _Dp, _AllocT > _CntrlBlk; |
| __cntrl_ = new _CntrlBlk(__r.get(), __r.get_deleter(), _AllocT()); |
| __enable_weak_this(__r.get(), __r.get()); |
| } |
| __r.release(); |
| } |
| |
| template<class _Tp> |
| template <class _Yp, class _Dp> |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| shared_ptr<_Tp>::shared_ptr(unique_ptr<_Yp, _Dp>&& __r, |
| #else |
| shared_ptr<_Tp>::shared_ptr(unique_ptr<_Yp, _Dp> __r, |
| #endif |
| typename enable_if |
| < |
| is_lvalue_reference<_Dp>::value && |
| !is_array<_Yp>::value && |
| is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, element_type*>::value, |
| __nat |
| >::type) |
| : __ptr_(__r.get()) |
| { |
| #if _LIBCPP_STD_VER > 11 |
| if (__ptr_ == nullptr) |
| __cntrl_ = nullptr; |
| else |
| #endif |
| { |
| typedef typename __shared_ptr_default_allocator<_Yp>::type _AllocT; |
| typedef __shared_ptr_pointer<_Yp*, |
| reference_wrapper<typename remove_reference<_Dp>::type>, |
| _AllocT > _CntrlBlk; |
| __cntrl_ = new _CntrlBlk(__r.get(), ref(__r.get_deleter()), _AllocT()); |
| __enable_weak_this(__r.get(), __r.get()); |
| } |
| __r.release(); |
| } |
| |
| #ifndef _LIBCPP_HAS_NO_VARIADICS |
| |
| template<class _Tp> |
| template<class ..._Args> |
| shared_ptr<_Tp> |
| shared_ptr<_Tp>::make_shared(_Args&& ...__args) |
| { |
| static_assert( is_constructible<_Tp, _Args...>::value, "Can't construct object in make_shared" ); |
| typedef __shared_ptr_emplace<_Tp, allocator<_Tp> > _CntrlBlk; |
| typedef allocator<_CntrlBlk> _A2; |
| typedef __allocator_destructor<_A2> _D2; |
| _A2 __a2; |
| unique_ptr<_CntrlBlk, _D2> __hold2(__a2.allocate(1), _D2(__a2, 1)); |
| ::new(__hold2.get()) _CntrlBlk(__a2, _VSTD::forward<_Args>(__args)...); |
| shared_ptr<_Tp> __r; |
| __r.__ptr_ = __hold2.get()->get(); |
| __r.__cntrl_ = __hold2.release(); |
| __r.__enable_weak_this(__r.__ptr_, __r.__ptr_); |
| return __r; |
| } |
| |
| template<class _Tp> |
| template<class _Alloc, class ..._Args> |
| shared_ptr<_Tp> |
| shared_ptr<_Tp>::allocate_shared(const _Alloc& __a, _Args&& ...__args) |
| { |
| static_assert( is_constructible<_Tp, _Args...>::value, "Can't construct object in allocate_shared" ); |
| typedef __shared_ptr_emplace<_Tp, _Alloc> _CntrlBlk; |
| typedef typename __allocator_traits_rebind<_Alloc, _CntrlBlk>::type _A2; |
| typedef __allocator_destructor<_A2> _D2; |
| _A2 __a2(__a); |
| unique_ptr<_CntrlBlk, _D2> __hold2(__a2.allocate(1), _D2(__a2, 1)); |
| ::new(static_cast<void*>(_VSTD::addressof(*__hold2.get()))) |
| _CntrlBlk(__a, _VSTD::forward<_Args>(__args)...); |
| shared_ptr<_Tp> __r; |
| __r.__ptr_ = __hold2.get()->get(); |
| __r.__cntrl_ = _VSTD::addressof(*__hold2.release()); |
| __r.__enable_weak_this(__r.__ptr_, __r.__ptr_); |
| return __r; |
| } |
| |
| #else // _LIBCPP_HAS_NO_VARIADICS |
| |
| template<class _Tp> |
| shared_ptr<_Tp> |
| shared_ptr<_Tp>::make_shared() |
| { |
| static_assert((is_constructible<_Tp>::value), "Can't construct object in make_shared" ); |
| typedef __shared_ptr_emplace<_Tp, allocator<_Tp> > _CntrlBlk; |
| typedef allocator<_CntrlBlk> _Alloc2; |
| typedef __allocator_destructor<_Alloc2> _D2; |
| _Alloc2 __alloc2; |
| unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1)); |
| ::new(__hold2.get()) _CntrlBlk(__alloc2); |
| shared_ptr<_Tp> __r; |
| __r.__ptr_ = __hold2.get()->get(); |
| __r.__cntrl_ = __hold2.release(); |
| __r.__enable_weak_this(__r.__ptr_, __r.__ptr_); |
| return __r; |
| } |
| |
| template<class _Tp> |
| template<class _A0> |
| shared_ptr<_Tp> |
| shared_ptr<_Tp>::make_shared(_A0& __a0) |
| { |
| static_assert((is_constructible<_Tp, _A0>::value), "Can't construct object in make_shared" ); |
| typedef __shared_ptr_emplace<_Tp, allocator<_Tp> > _CntrlBlk; |
| typedef allocator<_CntrlBlk> _Alloc2; |
| typedef __allocator_destructor<_Alloc2> _D2; |
| _Alloc2 __alloc2; |
| unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1)); |
| ::new(__hold2.get()) _CntrlBlk(__alloc2, __a0); |
| shared_ptr<_Tp> __r; |
| __r.__ptr_ = __hold2.get()->get(); |
| __r.__cntrl_ = __hold2.release(); |
| __r.__enable_weak_this(__r.__ptr_, __r.__ptr_); |
| return __r; |
| } |
| |
| template<class _Tp> |
| template<class _A0, class _A1> |
| shared_ptr<_Tp> |
| shared_ptr<_Tp>::make_shared(_A0& __a0, _A1& __a1) |
| { |
| static_assert((is_constructible<_Tp, _A0, _A1>::value), "Can't construct object in make_shared" ); |
| typedef __shared_ptr_emplace<_Tp, allocator<_Tp> > _CntrlBlk; |
| typedef allocator<_CntrlBlk> _Alloc2; |
| typedef __allocator_destructor<_Alloc2> _D2; |
| _Alloc2 __alloc2; |
| unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1)); |
| ::new(__hold2.get()) _CntrlBlk(__alloc2, __a0, __a1); |
| shared_ptr<_Tp> __r; |
| __r.__ptr_ = __hold2.get()->get(); |
| __r.__cntrl_ = __hold2.release(); |
| __r.__enable_weak_this(__r.__ptr_, __r.__ptr_); |
| return __r; |
| } |
| |
| template<class _Tp> |
| template<class _A0, class _A1, class _A2> |
| shared_ptr<_Tp> |
| shared_ptr<_Tp>::make_shared(_A0& __a0, _A1& __a1, _A2& __a2) |
| { |
| static_assert((is_constructible<_Tp, _A0, _A1, _A2>::value), "Can't construct object in make_shared" ); |
| typedef __shared_ptr_emplace<_Tp, allocator<_Tp> > _CntrlBlk; |
| typedef allocator<_CntrlBlk> _Alloc2; |
| typedef __allocator_destructor<_Alloc2> _D2; |
| _Alloc2 __alloc2; |
| unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1)); |
| ::new(__hold2.get()) _CntrlBlk(__alloc2, __a0, __a1, __a2); |
| shared_ptr<_Tp> __r; |
| __r.__ptr_ = __hold2.get()->get(); |
| __r.__cntrl_ = __hold2.release(); |
| __r.__enable_weak_this(__r.__ptr_, __r.__ptr_); |
| return __r; |
| } |
| |
| template<class _Tp> |
| template<class _Alloc> |
| shared_ptr<_Tp> |
| shared_ptr<_Tp>::allocate_shared(const _Alloc& __a) |
| { |
| static_assert((is_constructible<_Tp>::value), "Can't construct object in allocate_shared" ); |
| typedef __shared_ptr_emplace<_Tp, _Alloc> _CntrlBlk; |
| typedef typename __allocator_traits_rebind<_Alloc, _CntrlBlk>::type _Alloc2; |
| typedef __allocator_destructor<_Alloc2> _D2; |
| _Alloc2 __alloc2(__a); |
| unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1)); |
| ::new(static_cast<void*>(_VSTD::addressof(*__hold2.get()))) |
| _CntrlBlk(__a); |
| shared_ptr<_Tp> __r; |
| __r.__ptr_ = __hold2.get()->get(); |
| __r.__cntrl_ = _VSTD::addressof(*__hold2.release()); |
| __r.__enable_weak_this(__r.__ptr_, __r.__ptr_); |
| return __r; |
| } |
| |
| template<class _Tp> |
| template<class _Alloc, class _A0> |
| shared_ptr<_Tp> |
| shared_ptr<_Tp>::allocate_shared(const _Alloc& __a, _A0& __a0) |
| { |
| static_assert((is_constructible<_Tp, _A0>::value), "Can't construct object in allocate_shared" ); |
| typedef __shared_ptr_emplace<_Tp, _Alloc> _CntrlBlk; |
| typedef typename __allocator_traits_rebind<_Alloc, _CntrlBlk>::type _Alloc2; |
| typedef __allocator_destructor<_Alloc2> _D2; |
| _Alloc2 __alloc2(__a); |
| unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1)); |
| ::new(static_cast<void*>(_VSTD::addressof(*__hold2.get()))) |
| _CntrlBlk(__a, __a0); |
| shared_ptr<_Tp> __r; |
| __r.__ptr_ = __hold2.get()->get(); |
| __r.__cntrl_ = _VSTD::addressof(*__hold2.release()); |
| __r.__enable_weak_this(__r.__ptr_, __r.__ptr_); |
| return __r; |
| } |
| |
| template<class _Tp> |
| template<class _Alloc, class _A0, class _A1> |
| shared_ptr<_Tp> |
| shared_ptr<_Tp>::allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1) |
| { |
| static_assert((is_constructible<_Tp, _A0, _A1>::value), "Can't construct object in allocate_shared" ); |
| typedef __shared_ptr_emplace<_Tp, _Alloc> _CntrlBlk; |
| typedef typename __allocator_traits_rebind<_Alloc, _CntrlBlk>::type _Alloc2; |
| typedef __allocator_destructor<_Alloc2> _D2; |
| _Alloc2 __alloc2(__a); |
| unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1)); |
| ::new(static_cast<void*>(_VSTD::addressof(*__hold2.get()))) |
| _CntrlBlk(__a, __a0, __a1); |
| shared_ptr<_Tp> __r; |
| __r.__ptr_ = __hold2.get()->get(); |
| __r.__cntrl_ = _VSTD::addressof(*__hold2.release()); |
| __r.__enable_weak_this(__r.__ptr_, __r.__ptr_); |
| return __r; |
| } |
| |
| template<class _Tp> |
| template<class _Alloc, class _A0, class _A1, class _A2> |
| shared_ptr<_Tp> |
| shared_ptr<_Tp>::allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1, _A2& __a2) |
| { |
| static_assert((is_constructible<_Tp, _A0, _A1, _A2>::value), "Can't construct object in allocate_shared" ); |
| typedef __shared_ptr_emplace<_Tp, _Alloc> _CntrlBlk; |
| typedef typename __allocator_traits_rebind<_Alloc, _CntrlBlk>::type _Alloc2; |
| typedef __allocator_destructor<_Alloc2> _D2; |
| _Alloc2 __alloc2(__a); |
| unique_ptr<_CntrlBlk, _D2> __hold2(__alloc2.allocate(1), _D2(__alloc2, 1)); |
| ::new(static_cast<void*>(_VSTD::addressof(*__hold2.get()))) |
| _CntrlBlk(__a, __a0, __a1, __a2); |
| shared_ptr<_Tp> __r; |
| __r.__ptr_ = __hold2.get()->get(); |
| __r.__cntrl_ = _VSTD::addressof(*__hold2.release()); |
| __r.__enable_weak_this(__r.__ptr_, __r.__ptr_); |
| return __r; |
| } |
| |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| |
| template<class _Tp> |
| shared_ptr<_Tp>::~shared_ptr() |
| { |
| if (__cntrl_) |
| __cntrl_->__release_shared(); |
| } |
| |
| template<class _Tp> |
| inline |
| shared_ptr<_Tp>& |
| shared_ptr<_Tp>::operator=(const shared_ptr& __r) _NOEXCEPT |
| { |
| shared_ptr(__r).swap(*this); |
| return *this; |
| } |
| |
| template<class _Tp> |
| template<class _Yp> |
| inline |
| typename enable_if |
| < |
| is_convertible<_Yp*, typename shared_ptr<_Tp>::element_type*>::value, |
| shared_ptr<_Tp>& |
| >::type |
| shared_ptr<_Tp>::operator=(const shared_ptr<_Yp>& __r) _NOEXCEPT |
| { |
| shared_ptr(__r).swap(*this); |
| return *this; |
| } |
| |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template<class _Tp> |
| inline |
| shared_ptr<_Tp>& |
| shared_ptr<_Tp>::operator=(shared_ptr&& __r) _NOEXCEPT |
| { |
| shared_ptr(_VSTD::move(__r)).swap(*this); |
| return *this; |
| } |
| |
| template<class _Tp> |
| template<class _Yp> |
| inline |
| typename enable_if |
| < |
| is_convertible<_Yp*, typename shared_ptr<_Tp>::element_type*>::value, |
| shared_ptr<_Tp>& |
| >::type |
| shared_ptr<_Tp>::operator=(shared_ptr<_Yp>&& __r) |
| { |
| shared_ptr(_VSTD::move(__r)).swap(*this); |
| return *this; |
| } |
| |
| #if _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR) |
| template<class _Tp> |
| template<class _Yp> |
| inline |
| typename enable_if |
| < |
| !is_array<_Yp>::value && |
| is_convertible<_Yp*, typename shared_ptr<_Tp>::element_type*>::value, |
| shared_ptr<_Tp> |
| >::type& |
| shared_ptr<_Tp>::operator=(auto_ptr<_Yp>&& __r) |
| { |
| shared_ptr(_VSTD::move(__r)).swap(*this); |
| return *this; |
| } |
| #endif |
| |
| template<class _Tp> |
| template <class _Yp, class _Dp> |
| inline |
| typename enable_if |
| < |
| !is_array<_Yp>::value && |
| is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, |
| typename shared_ptr<_Tp>::element_type*>::value, |
| shared_ptr<_Tp>& |
| >::type |
| shared_ptr<_Tp>::operator=(unique_ptr<_Yp, _Dp>&& __r) |
| { |
| shared_ptr(_VSTD::move(__r)).swap(*this); |
| return *this; |
| } |
| |
| #else // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| #if _LIBCPP_STD_VER <= 14 || defined(_LIBCPP_ENABLE_CXX17_REMOVED_AUTO_PTR) |
| template<class _Tp> |
| template<class _Yp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| !is_array<_Yp>::value && |
| is_convertible<_Yp*, typename shared_ptr<_Tp>::element_type*>::value, |
| shared_ptr<_Tp>& |
| >::type |
| shared_ptr<_Tp>::operator=(auto_ptr<_Yp> __r) |
| { |
| shared_ptr(__r).swap(*this); |
| return *this; |
| } |
| #endif |
| |
| template<class _Tp> |
| template <class _Yp, class _Dp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| !is_array<_Yp>::value && |
| is_convertible<typename unique_ptr<_Yp, _Dp>::pointer, |
| typename shared_ptr<_Tp>::element_type*>::value, |
| shared_ptr<_Tp>& |
| >::type |
| shared_ptr<_Tp>::operator=(unique_ptr<_Yp, _Dp> __r) |
| { |
| shared_ptr(_VSTD::move(__r)).swap(*this); |
| return *this; |
| } |
| |
| #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template<class _Tp> |
| inline |
| void |
| shared_ptr<_Tp>::swap(shared_ptr& __r) _NOEXCEPT |
| { |
| _VSTD::swap(__ptr_, __r.__ptr_); |
| _VSTD::swap(__cntrl_, __r.__cntrl_); |
| } |
| |
| template<class _Tp> |
| inline |
| void |
| shared_ptr<_Tp>::reset() _NOEXCEPT |
| { |
| shared_ptr().swap(*this); |
| } |
| |
| template<class _Tp> |
| template<class _Yp> |
| inline |
| typename enable_if |
| < |
| is_convertible<_Yp*, typename shared_ptr<_Tp>::element_type*>::value, |
| void |
| >::type |
| shared_ptr<_Tp>::reset(_Yp* __p) |
| { |
| shared_ptr(__p).swap(*this); |
| } |
| |
| template<class _Tp> |
| template<class _Yp, class _Dp> |
| inline |
| typename enable_if |
| < |
| is_convertible<_Yp*, typename shared_ptr<_Tp>::element_type*>::value, |
| void |
| >::type |
| shared_ptr<_Tp>::reset(_Yp* __p, _Dp __d) |
| { |
| shared_ptr(__p, __d).swap(*this); |
| } |
| |
| template<class _Tp> |
| template<class _Yp, class _Dp, class _Alloc> |
| inline |
| typename enable_if |
| < |
| is_convertible<_Yp*, typename shared_ptr<_Tp>::element_type*>::value, |
| void |
| >::type |
| shared_ptr<_Tp>::reset(_Yp* __p, _Dp __d, _Alloc __a) |
| { |
| shared_ptr(__p, __d, __a).swap(*this); |
| } |
| |
| #ifndef _LIBCPP_HAS_NO_VARIADICS |
| |
| template<class _Tp, class ..._Args> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| !is_array<_Tp>::value, |
| shared_ptr<_Tp> |
| >::type |
| make_shared(_Args&& ...__args) |
| { |
| return shared_ptr<_Tp>::make_shared(_VSTD::forward<_Args>(__args)...); |
| } |
| |
| template<class _Tp, class _Alloc, class ..._Args> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| !is_array<_Tp>::value, |
| shared_ptr<_Tp> |
| >::type |
| allocate_shared(const _Alloc& __a, _Args&& ...__args) |
| { |
| return shared_ptr<_Tp>::allocate_shared(__a, _VSTD::forward<_Args>(__args)...); |
| } |
| |
| #else // _LIBCPP_HAS_NO_VARIADICS |
| |
| template<class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| shared_ptr<_Tp> |
| make_shared() |
| { |
| return shared_ptr<_Tp>::make_shared(); |
| } |
| |
| template<class _Tp, class _A0> |
| inline _LIBCPP_INLINE_VISIBILITY |
| shared_ptr<_Tp> |
| make_shared(_A0& __a0) |
| { |
| return shared_ptr<_Tp>::make_shared(__a0); |
| } |
| |
| template<class _Tp, class _A0, class _A1> |
| inline _LIBCPP_INLINE_VISIBILITY |
| shared_ptr<_Tp> |
| make_shared(_A0& __a0, _A1& __a1) |
| { |
| return shared_ptr<_Tp>::make_shared(__a0, __a1); |
| } |
| |
| template<class _Tp, class _A0, class _A1, class _A2> |
| inline _LIBCPP_INLINE_VISIBILITY |
| shared_ptr<_Tp> |
| make_shared(_A0& __a0, _A1& __a1, _A2& __a2) |
| { |
| return shared_ptr<_Tp>::make_shared(__a0, __a1, __a2); |
| } |
| |
| template<class _Tp, class _Alloc> |
| inline _LIBCPP_INLINE_VISIBILITY |
| shared_ptr<_Tp> |
| allocate_shared(const _Alloc& __a) |
| { |
| return shared_ptr<_Tp>::allocate_shared(__a); |
| } |
| |
| template<class _Tp, class _Alloc, class _A0> |
| inline _LIBCPP_INLINE_VISIBILITY |
| shared_ptr<_Tp> |
| allocate_shared(const _Alloc& __a, _A0& __a0) |
| { |
| return shared_ptr<_Tp>::allocate_shared(__a, __a0); |
| } |
| |
| template<class _Tp, class _Alloc, class _A0, class _A1> |
| inline _LIBCPP_INLINE_VISIBILITY |
| shared_ptr<_Tp> |
| allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1) |
| { |
| return shared_ptr<_Tp>::allocate_shared(__a, __a0, __a1); |
| } |
| |
| template<class _Tp, class _Alloc, class _A0, class _A1, class _A2> |
| inline _LIBCPP_INLINE_VISIBILITY |
| shared_ptr<_Tp> |
| allocate_shared(const _Alloc& __a, _A0& __a0, _A1& __a1, _A2& __a2) |
| { |
| return shared_ptr<_Tp>::allocate_shared(__a, __a0, __a1, __a2); |
| } |
| |
| #endif // _LIBCPP_HAS_NO_VARIADICS |
| |
| template<class _Tp, class _Up> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator==(const shared_ptr<_Tp>& __x, const shared_ptr<_Up>& __y) _NOEXCEPT |
| { |
| return __x.get() == __y.get(); |
| } |
| |
| template<class _Tp, class _Up> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator!=(const shared_ptr<_Tp>& __x, const shared_ptr<_Up>& __y) _NOEXCEPT |
| { |
| return !(__x == __y); |
| } |
| |
| template<class _Tp, class _Up> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator<(const shared_ptr<_Tp>& __x, const shared_ptr<_Up>& __y) _NOEXCEPT |
| { |
| #if _LIBCPP_STD_VER <= 11 |
| typedef typename common_type<_Tp*, _Up*>::type _Vp; |
| return less<_Vp>()(__x.get(), __y.get()); |
| #else |
| return less<>()(__x.get(), __y.get()); |
| #endif |
| |
| } |
| |
| template<class _Tp, class _Up> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator>(const shared_ptr<_Tp>& __x, const shared_ptr<_Up>& __y) _NOEXCEPT |
| { |
| return __y < __x; |
| } |
| |
| template<class _Tp, class _Up> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator<=(const shared_ptr<_Tp>& __x, const shared_ptr<_Up>& __y) _NOEXCEPT |
| { |
| return !(__y < __x); |
| } |
| |
| template<class _Tp, class _Up> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator>=(const shared_ptr<_Tp>& __x, const shared_ptr<_Up>& __y) _NOEXCEPT |
| { |
| return !(__x < __y); |
| } |
| |
| template<class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator==(const shared_ptr<_Tp>& __x, nullptr_t) _NOEXCEPT |
| { |
| return !__x; |
| } |
| |
| template<class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator==(nullptr_t, const shared_ptr<_Tp>& __x) _NOEXCEPT |
| { |
| return !__x; |
| } |
| |
| template<class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator!=(const shared_ptr<_Tp>& __x, nullptr_t) _NOEXCEPT |
| { |
| return static_cast<bool>(__x); |
| } |
| |
| template<class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator!=(nullptr_t, const shared_ptr<_Tp>& __x) _NOEXCEPT |
| { |
| return static_cast<bool>(__x); |
| } |
| |
| template<class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator<(const shared_ptr<_Tp>& __x, nullptr_t) _NOEXCEPT |
| { |
| return less<_Tp*>()(__x.get(), nullptr); |
| } |
| |
| template<class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator<(nullptr_t, const shared_ptr<_Tp>& __x) _NOEXCEPT |
| { |
| return less<_Tp*>()(nullptr, __x.get()); |
| } |
| |
| template<class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator>(const shared_ptr<_Tp>& __x, nullptr_t) _NOEXCEPT |
| { |
| return nullptr < __x; |
| } |
| |
| template<class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator>(nullptr_t, const shared_ptr<_Tp>& __x) _NOEXCEPT |
| { |
| return __x < nullptr; |
| } |
| |
| template<class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator<=(const shared_ptr<_Tp>& __x, nullptr_t) _NOEXCEPT |
| { |
| return !(nullptr < __x); |
| } |
| |
| template<class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator<=(nullptr_t, const shared_ptr<_Tp>& __x) _NOEXCEPT |
| { |
| return !(__x < nullptr); |
| } |
| |
| template<class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator>=(const shared_ptr<_Tp>& __x, nullptr_t) _NOEXCEPT |
| { |
| return !(__x < nullptr); |
| } |
| |
| template<class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| operator>=(nullptr_t, const shared_ptr<_Tp>& __x) _NOEXCEPT |
| { |
| return !(nullptr < __x); |
| } |
| |
| template<class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| void |
| swap(shared_ptr<_Tp>& __x, shared_ptr<_Tp>& __y) _NOEXCEPT |
| { |
| __x.swap(__y); |
| } |
| |
| template<class _Tp, class _Up> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| !is_array<_Tp>::value && !is_array<_Up>::value, |
| shared_ptr<_Tp> |
| >::type |
| static_pointer_cast(const shared_ptr<_Up>& __r) _NOEXCEPT |
| { |
| return shared_ptr<_Tp>(__r, static_cast<_Tp*>(__r.get())); |
| } |
| |
| template<class _Tp, class _Up> |
| inline _LIBCPP_INLINE_VISIBILITY |
| typename enable_if |
| < |
| !is_array<_Tp>::value && !is_array<_Up>::value, |
| shared_ptr<_Tp> |
| >::type |
| dynamic_pointer_cast(const shared_ptr<_Up>& __r) _NOEXCEPT |
| { |
| _Tp* __p = dynamic_cast<_Tp*>(__r.get()); |
| return __p ? shared_ptr<_Tp>(__r, __p) : shared_ptr<_Tp>(); |
| } |
| |
| template<class _Tp, class _Up> |
| typename enable_if |
| < |
| is_array<_Tp>::value == is_array<_Up>::value, |
| shared_ptr<_Tp> |
| >::type |
| const_pointer_cast(const shared_ptr<_Up>& __r) _NOEXCEPT |
| { |
| typedef typename remove_extent<_Tp>::type _RTp; |
| return shared_ptr<_Tp>(__r, const_cast<_RTp*>(__r.get())); |
| } |
| |
| #ifndef _LIBCPP_NO_RTTI |
| |
| template<class _Dp, class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _Dp* |
| get_deleter(const shared_ptr<_Tp>& __p) _NOEXCEPT |
| { |
| return __p.template __get_deleter<_Dp>(); |
| } |
| |
| #endif // _LIBCPP_NO_RTTI |
| |
| template<class _Tp> |
| class _LIBCPP_TEMPLATE_VIS weak_ptr |
| { |
| public: |
| typedef _Tp element_type; |
| private: |
| element_type* __ptr_; |
| __shared_weak_count* __cntrl_; |
| |
| public: |
| _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_CONSTEXPR weak_ptr() _NOEXCEPT; |
| template<class _Yp> _LIBCPP_INLINE_VISIBILITY weak_ptr(shared_ptr<_Yp> const& __r, |
| typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat*>::type = 0) |
| _NOEXCEPT; |
| _LIBCPP_INLINE_VISIBILITY |
| weak_ptr(weak_ptr const& __r) _NOEXCEPT; |
| template<class _Yp> _LIBCPP_INLINE_VISIBILITY weak_ptr(weak_ptr<_Yp> const& __r, |
| typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat*>::type = 0) |
| _NOEXCEPT; |
| |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| _LIBCPP_INLINE_VISIBILITY |
| weak_ptr(weak_ptr&& __r) _NOEXCEPT; |
| template<class _Yp> _LIBCPP_INLINE_VISIBILITY weak_ptr(weak_ptr<_Yp>&& __r, |
| typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat*>::type = 0) |
| _NOEXCEPT; |
| #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| ~weak_ptr(); |
| |
| _LIBCPP_INLINE_VISIBILITY |
| weak_ptr& operator=(weak_ptr const& __r) _NOEXCEPT; |
| template<class _Yp> |
| typename enable_if |
| < |
| is_convertible<_Yp*, element_type*>::value, |
| weak_ptr& |
| >::type |
| _LIBCPP_INLINE_VISIBILITY |
| operator=(weak_ptr<_Yp> const& __r) _NOEXCEPT; |
| |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| _LIBCPP_INLINE_VISIBILITY |
| weak_ptr& operator=(weak_ptr&& __r) _NOEXCEPT; |
| template<class _Yp> |
| typename enable_if |
| < |
| is_convertible<_Yp*, element_type*>::value, |
| weak_ptr& |
| >::type |
| _LIBCPP_INLINE_VISIBILITY |
| operator=(weak_ptr<_Yp>&& __r) _NOEXCEPT; |
| |
| #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template<class _Yp> |
| typename enable_if |
| < |
| is_convertible<_Yp*, element_type*>::value, |
| weak_ptr& |
| >::type |
| _LIBCPP_INLINE_VISIBILITY |
| operator=(shared_ptr<_Yp> const& __r) _NOEXCEPT; |
| |
| _LIBCPP_INLINE_VISIBILITY |
| void swap(weak_ptr& __r) _NOEXCEPT; |
| _LIBCPP_INLINE_VISIBILITY |
| void reset() _NOEXCEPT; |
| |
| _LIBCPP_INLINE_VISIBILITY |
| long use_count() const _NOEXCEPT |
| {return __cntrl_ ? __cntrl_->use_count() : 0;} |
| _LIBCPP_INLINE_VISIBILITY |
| bool expired() const _NOEXCEPT |
| {return __cntrl_ == 0 || __cntrl_->use_count() == 0;} |
| shared_ptr<_Tp> lock() const _NOEXCEPT; |
| template<class _Up> |
| _LIBCPP_INLINE_VISIBILITY |
| bool owner_before(const shared_ptr<_Up>& __r) const _NOEXCEPT |
| {return __cntrl_ < __r.__cntrl_;} |
| template<class _Up> |
| _LIBCPP_INLINE_VISIBILITY |
| bool owner_before(const weak_ptr<_Up>& __r) const _NOEXCEPT |
| {return __cntrl_ < __r.__cntrl_;} |
| |
| template <class _Up> friend class _LIBCPP_TEMPLATE_VIS weak_ptr; |
| template <class _Up> friend class _LIBCPP_TEMPLATE_VIS shared_ptr; |
| }; |
| |
| template<class _Tp> |
| inline |
| _LIBCPP_CONSTEXPR |
| weak_ptr<_Tp>::weak_ptr() _NOEXCEPT |
| : __ptr_(0), |
| __cntrl_(0) |
| { |
| } |
| |
| template<class _Tp> |
| inline |
| weak_ptr<_Tp>::weak_ptr(weak_ptr const& __r) _NOEXCEPT |
| : __ptr_(__r.__ptr_), |
| __cntrl_(__r.__cntrl_) |
| { |
| if (__cntrl_) |
| __cntrl_->__add_weak(); |
| } |
| |
| template<class _Tp> |
| template<class _Yp> |
| inline |
| weak_ptr<_Tp>::weak_ptr(shared_ptr<_Yp> const& __r, |
| typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat*>::type) |
| _NOEXCEPT |
| : __ptr_(__r.__ptr_), |
| __cntrl_(__r.__cntrl_) |
| { |
| if (__cntrl_) |
| __cntrl_->__add_weak(); |
| } |
| |
| template<class _Tp> |
| template<class _Yp> |
| inline |
| weak_ptr<_Tp>::weak_ptr(weak_ptr<_Yp> const& __r, |
| typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat*>::type) |
| _NOEXCEPT |
| : __ptr_(__r.__ptr_), |
| __cntrl_(__r.__cntrl_) |
| { |
| if (__cntrl_) |
| __cntrl_->__add_weak(); |
| } |
| |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template<class _Tp> |
| inline |
| weak_ptr<_Tp>::weak_ptr(weak_ptr&& __r) _NOEXCEPT |
| : __ptr_(__r.__ptr_), |
| __cntrl_(__r.__cntrl_) |
| { |
| __r.__ptr_ = 0; |
| __r.__cntrl_ = 0; |
| } |
| |
| template<class _Tp> |
| template<class _Yp> |
| inline |
| weak_ptr<_Tp>::weak_ptr(weak_ptr<_Yp>&& __r, |
| typename enable_if<is_convertible<_Yp*, _Tp*>::value, __nat*>::type) |
| _NOEXCEPT |
| : __ptr_(__r.__ptr_), |
| __cntrl_(__r.__cntrl_) |
| { |
| __r.__ptr_ = 0; |
| __r.__cntrl_ = 0; |
| } |
| |
| #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template<class _Tp> |
| weak_ptr<_Tp>::~weak_ptr() |
| { |
| if (__cntrl_) |
| __cntrl_->__release_weak(); |
| } |
| |
| template<class _Tp> |
| inline |
| weak_ptr<_Tp>& |
| weak_ptr<_Tp>::operator=(weak_ptr const& __r) _NOEXCEPT |
| { |
| weak_ptr(__r).swap(*this); |
| return *this; |
| } |
| |
| template<class _Tp> |
| template<class _Yp> |
| inline |
| typename enable_if |
| < |
| is_convertible<_Yp*, _Tp*>::value, |
| weak_ptr<_Tp>& |
| >::type |
| weak_ptr<_Tp>::operator=(weak_ptr<_Yp> const& __r) _NOEXCEPT |
| { |
| weak_ptr(__r).swap(*this); |
| return *this; |
| } |
| |
| #ifndef _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template<class _Tp> |
| inline |
| weak_ptr<_Tp>& |
| weak_ptr<_Tp>::operator=(weak_ptr&& __r) _NOEXCEPT |
| { |
| weak_ptr(_VSTD::move(__r)).swap(*this); |
| return *this; |
| } |
| |
| template<class _Tp> |
| template<class _Yp> |
| inline |
| typename enable_if |
| < |
| is_convertible<_Yp*, _Tp*>::value, |
| weak_ptr<_Tp>& |
| >::type |
| weak_ptr<_Tp>::operator=(weak_ptr<_Yp>&& __r) _NOEXCEPT |
| { |
| weak_ptr(_VSTD::move(__r)).swap(*this); |
| return *this; |
| } |
| |
| #endif // _LIBCPP_HAS_NO_RVALUE_REFERENCES |
| |
| template<class _Tp> |
| template<class _Yp> |
| inline |
| typename enable_if |
| < |
| is_convertible<_Yp*, _Tp*>::value, |
| weak_ptr<_Tp>& |
| >::type |
| weak_ptr<_Tp>::operator=(shared_ptr<_Yp> const& __r) _NOEXCEPT |
| { |
| weak_ptr(__r).swap(*this); |
| return *this; |
| } |
| |
| template<class _Tp> |
| inline |
| void |
| weak_ptr<_Tp>::swap(weak_ptr& __r) _NOEXCEPT |
| { |
| _VSTD::swap(__ptr_, __r.__ptr_); |
| _VSTD::swap(__cntrl_, __r.__cntrl_); |
| } |
| |
| template<class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| void |
| swap(weak_ptr<_Tp>& __x, weak_ptr<_Tp>& __y) _NOEXCEPT |
| { |
| __x.swap(__y); |
| } |
| |
| template<class _Tp> |
| inline |
| void |
| weak_ptr<_Tp>::reset() _NOEXCEPT |
| { |
| weak_ptr().swap(*this); |
| } |
| |
| template<class _Tp> |
| template<class _Yp> |
| shared_ptr<_Tp>::shared_ptr(const weak_ptr<_Yp>& __r, |
| typename enable_if<is_convertible<_Yp*, element_type*>::value, __nat>::type) |
| : __ptr_(__r.__ptr_), |
| __cntrl_(__r.__cntrl_ ? __r.__cntrl_->lock() : __r.__cntrl_) |
| { |
| if (__cntrl_ == 0) |
| __throw_bad_weak_ptr(); |
| } |
| |
| template<class _Tp> |
| shared_ptr<_Tp> |
| weak_ptr<_Tp>::lock() const _NOEXCEPT |
| { |
| shared_ptr<_Tp> __r; |
| __r.__cntrl_ = __cntrl_ ? __cntrl_->lock() : __cntrl_; |
| if (__r.__cntrl_) |
| __r.__ptr_ = __ptr_; |
| return __r; |
| } |
| |
| #if _LIBCPP_STD_VER > 14 |
| template <class _Tp = void> struct owner_less; |
| #else |
| template <class _Tp> struct owner_less; |
| #endif |
| |
| template <class _Tp> |
| struct _LIBCPP_TEMPLATE_VIS owner_less<shared_ptr<_Tp> > |
| : binary_function<shared_ptr<_Tp>, shared_ptr<_Tp>, bool> |
| { |
| typedef bool result_type; |
| _LIBCPP_INLINE_VISIBILITY |
| bool operator()(shared_ptr<_Tp> const& __x, shared_ptr<_Tp> const& __y) const _NOEXCEPT |
| {return __x.owner_before(__y);} |
| _LIBCPP_INLINE_VISIBILITY |
| bool operator()(shared_ptr<_Tp> const& __x, weak_ptr<_Tp> const& __y) const _NOEXCEPT |
| {return __x.owner_before(__y);} |
| _LIBCPP_INLINE_VISIBILITY |
| bool operator()( weak_ptr<_Tp> const& __x, shared_ptr<_Tp> const& __y) const _NOEXCEPT |
| {return __x.owner_before(__y);} |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TEMPLATE_VIS owner_less<weak_ptr<_Tp> > |
| : binary_function<weak_ptr<_Tp>, weak_ptr<_Tp>, bool> |
| { |
| typedef bool result_type; |
| _LIBCPP_INLINE_VISIBILITY |
| bool operator()( weak_ptr<_Tp> const& __x, weak_ptr<_Tp> const& __y) const _NOEXCEPT |
| {return __x.owner_before(__y);} |
| _LIBCPP_INLINE_VISIBILITY |
| bool operator()(shared_ptr<_Tp> const& __x, weak_ptr<_Tp> const& __y) const _NOEXCEPT |
| {return __x.owner_before(__y);} |
| _LIBCPP_INLINE_VISIBILITY |
| bool operator()( weak_ptr<_Tp> const& __x, shared_ptr<_Tp> const& __y) const _NOEXCEPT |
| {return __x.owner_before(__y);} |
| }; |
| |
| #if _LIBCPP_STD_VER > 14 |
| template <> |
| struct _LIBCPP_TEMPLATE_VIS owner_less<void> |
| { |
| template <class _Tp, class _Up> |
| _LIBCPP_INLINE_VISIBILITY |
| bool operator()( shared_ptr<_Tp> const& __x, shared_ptr<_Up> const& __y) const _NOEXCEPT |
| {return __x.owner_before(__y);} |
| template <class _Tp, class _Up> |
| _LIBCPP_INLINE_VISIBILITY |
| bool operator()( shared_ptr<_Tp> const& __x, weak_ptr<_Up> const& __y) const _NOEXCEPT |
| {return __x.owner_before(__y);} |
| template <class _Tp, class _Up> |
| _LIBCPP_INLINE_VISIBILITY |
| bool operator()( weak_ptr<_Tp> const& __x, shared_ptr<_Up> const& __y) const _NOEXCEPT |
| {return __x.owner_before(__y);} |
| template <class _Tp, class _Up> |
| _LIBCPP_INLINE_VISIBILITY |
| bool operator()( weak_ptr<_Tp> const& __x, weak_ptr<_Up> const& __y) const _NOEXCEPT |
| {return __x.owner_before(__y);} |
| typedef void is_transparent; |
| }; |
| #endif |
| |
| template<class _Tp> |
| class _LIBCPP_TEMPLATE_VIS enable_shared_from_this |
| { |
| mutable weak_ptr<_Tp> __weak_this_; |
| protected: |
| _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR |
| enable_shared_from_this() _NOEXCEPT {} |
| _LIBCPP_INLINE_VISIBILITY |
| enable_shared_from_this(enable_shared_from_this const&) _NOEXCEPT {} |
| _LIBCPP_INLINE_VISIBILITY |
| enable_shared_from_this& operator=(enable_shared_from_this const&) _NOEXCEPT |
| {return *this;} |
| _LIBCPP_INLINE_VISIBILITY |
| ~enable_shared_from_this() {} |
| public: |
| _LIBCPP_INLINE_VISIBILITY |
| shared_ptr<_Tp> shared_from_this() |
| {return shared_ptr<_Tp>(__weak_this_);} |
| _LIBCPP_INLINE_VISIBILITY |
| shared_ptr<_Tp const> shared_from_this() const |
| {return shared_ptr<const _Tp>(__weak_this_);} |
| |
| #if _LIBCPP_STD_VER > 14 |
| _LIBCPP_INLINE_VISIBILITY |
| weak_ptr<_Tp> weak_from_this() _NOEXCEPT |
| { return __weak_this_; } |
| |
| _LIBCPP_INLINE_VISIBILITY |
| weak_ptr<const _Tp> weak_from_this() const _NOEXCEPT |
| { return __weak_this_; } |
| #endif // _LIBCPP_STD_VER > 14 |
| |
| template <class _Up> friend class shared_ptr; |
| }; |
| |
| template <class _Tp> |
| struct _LIBCPP_TEMPLATE_VIS hash<shared_ptr<_Tp> > |
| { |
| typedef shared_ptr<_Tp> argument_type; |
| typedef size_t result_type; |
| |
| _LIBCPP_INLINE_VISIBILITY |
| result_type operator()(const argument_type& __ptr) const _NOEXCEPT |
| { |
| return hash<_Tp*>()(__ptr.get()); |
| } |
| }; |
| |
| template<class _CharT, class _Traits, class _Yp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| basic_ostream<_CharT, _Traits>& |
| operator<<(basic_ostream<_CharT, _Traits>& __os, shared_ptr<_Yp> const& __p); |
| |
| |
| #if !defined(_LIBCPP_HAS_NO_ATOMIC_HEADER) |
| |
| class _LIBCPP_TYPE_VIS __sp_mut |
| { |
| void* __lx; |
| public: |
| void lock() _NOEXCEPT; |
| void unlock() _NOEXCEPT; |
| |
| private: |
| _LIBCPP_CONSTEXPR __sp_mut(void*) _NOEXCEPT; |
| __sp_mut(const __sp_mut&); |
| __sp_mut& operator=(const __sp_mut&); |
| |
| friend _LIBCPP_FUNC_VIS __sp_mut& __get_sp_mut(const void*); |
| }; |
| |
| _LIBCPP_FUNC_VIS _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR |
| __sp_mut& __get_sp_mut(const void*); |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| bool |
| atomic_is_lock_free(const shared_ptr<_Tp>*) |
| { |
| return false; |
| } |
| |
| template <class _Tp> |
| _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR |
| shared_ptr<_Tp> |
| atomic_load(const shared_ptr<_Tp>* __p) |
| { |
| __sp_mut& __m = __get_sp_mut(__p); |
| __m.lock(); |
| shared_ptr<_Tp> __q = *__p; |
| __m.unlock(); |
| return __q; |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR |
| shared_ptr<_Tp> |
| atomic_load_explicit(const shared_ptr<_Tp>* __p, memory_order) |
| { |
| return atomic_load(__p); |
| } |
| |
| template <class _Tp> |
| _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR |
| void |
| atomic_store(shared_ptr<_Tp>* __p, shared_ptr<_Tp> __r) |
| { |
| __sp_mut& __m = __get_sp_mut(__p); |
| __m.lock(); |
| __p->swap(__r); |
| __m.unlock(); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR |
| void |
| atomic_store_explicit(shared_ptr<_Tp>* __p, shared_ptr<_Tp> __r, memory_order) |
| { |
| atomic_store(__p, __r); |
| } |
| |
| template <class _Tp> |
| _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR |
| shared_ptr<_Tp> |
| atomic_exchange(shared_ptr<_Tp>* __p, shared_ptr<_Tp> __r) |
| { |
| __sp_mut& __m = __get_sp_mut(__p); |
| __m.lock(); |
| __p->swap(__r); |
| __m.unlock(); |
| return __r; |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR |
| shared_ptr<_Tp> |
| atomic_exchange_explicit(shared_ptr<_Tp>* __p, shared_ptr<_Tp> __r, memory_order) |
| { |
| return atomic_exchange(__p, __r); |
| } |
| |
| template <class _Tp> |
| _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR |
| bool |
| atomic_compare_exchange_strong(shared_ptr<_Tp>* __p, shared_ptr<_Tp>* __v, shared_ptr<_Tp> __w) |
| { |
| shared_ptr<_Tp> __temp; |
| __sp_mut& __m = __get_sp_mut(__p); |
| __m.lock(); |
| if (__p->__owner_equivalent(*__v)) |
| { |
| _VSTD::swap(__temp, *__p); |
| *__p = __w; |
| __m.unlock(); |
| return true; |
| } |
| _VSTD::swap(__temp, *__v); |
| *__v = *__p; |
| __m.unlock(); |
| return false; |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR |
| bool |
| atomic_compare_exchange_weak(shared_ptr<_Tp>* __p, shared_ptr<_Tp>* __v, shared_ptr<_Tp> __w) |
| { |
| return atomic_compare_exchange_strong(__p, __v, __w); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR |
| bool |
| atomic_compare_exchange_strong_explicit(shared_ptr<_Tp>* __p, shared_ptr<_Tp>* __v, |
| shared_ptr<_Tp> __w, memory_order, memory_order) |
| { |
| return atomic_compare_exchange_strong(__p, __v, __w); |
| } |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _LIBCPP_AVAILABILITY_ATOMIC_SHARED_PTR |
| bool |
| atomic_compare_exchange_weak_explicit(shared_ptr<_Tp>* __p, shared_ptr<_Tp>* __v, |
| shared_ptr<_Tp> __w, memory_order, memory_order) |
| { |
| return atomic_compare_exchange_weak(__p, __v, __w); |
| } |
| |
| #endif // !defined(_LIBCPP_HAS_NO_ATOMIC_HEADER) |
| |
| //enum class |
| #if defined(_LIBCPP_ABI_POINTER_SAFETY_ENUM_TYPE) |
| # ifndef _LIBCPP_CXX03_LANG |
| enum class pointer_safety : unsigned char { |
| relaxed, |
| preferred, |
| strict |
| }; |
| # endif |
| #else |
| struct _LIBCPP_TYPE_VIS pointer_safety |
| { |
| enum __lx |
| { |
| relaxed, |
| preferred, |
| strict |
| }; |
| |
| __lx __v_; |
| |
| _LIBCPP_INLINE_VISIBILITY |
| pointer_safety() : __v_() {} |
| |
| _LIBCPP_INLINE_VISIBILITY |
| pointer_safety(__lx __v) : __v_(__v) {} |
| _LIBCPP_INLINE_VISIBILITY |
| operator int() const {return __v_;} |
| }; |
| #endif |
| |
| #if !defined(_LIBCPP_ABI_POINTER_SAFETY_ENUM_TYPE) && \ |
| defined(_LIBCPP_BUILDING_LIBRARY) |
| _LIBCPP_FUNC_VIS pointer_safety get_pointer_safety() _NOEXCEPT; |
| #else |
| // This function is only offered in C++03 under ABI v1. |
| # if !defined(_LIBCPP_ABI_POINTER_SAFETY_ENUM_TYPE) || !defined(_LIBCPP_CXX03_LANG) |
| inline _LIBCPP_INLINE_VISIBILITY |
| pointer_safety get_pointer_safety() _NOEXCEPT { |
| return pointer_safety::relaxed; |
| } |
| # endif |
| #endif |
| |
| |
| _LIBCPP_FUNC_VIS void declare_reachable(void* __p); |
| _LIBCPP_FUNC_VIS void declare_no_pointers(char* __p, size_t __n); |
| _LIBCPP_FUNC_VIS void undeclare_no_pointers(char* __p, size_t __n); |
| _LIBCPP_FUNC_VIS void* __undeclare_reachable(void* __p); |
| |
| template <class _Tp> |
| inline _LIBCPP_INLINE_VISIBILITY |
| _Tp* |
| undeclare_reachable(_Tp* __p) |
| { |
| return static_cast<_Tp*>(__undeclare_reachable(__p)); |
| } |
| |
| _LIBCPP_FUNC_VIS void* align(size_t __align, size_t __sz, void*& __ptr, size_t& __space); |
| |
| // --- Helper for container swap -- |
| 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 |
| { |
| __swap_allocator(__a1, __a2, |
| integral_constant<bool, _VSTD::allocator_traits<_Alloc>::propagate_on_container_swap::value>()); |
| } |
| |
| 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, 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 |
| > {}; |
| |
| |
| #ifndef _LIBCPP_HAS_NO_VARIADICS |
| template <class _Tp, class _Alloc> |
| struct __temp_value { |
| typedef allocator_traits<_Alloc> _Traits; |
| |
| typename aligned_storage<sizeof(_Tp), alignof(_Tp)>::type __v; |
| _Alloc &__a; |
| |
| _Tp *__addr() { return reinterpret_cast<_Tp *>(addressof(__v)); } |
| _Tp & get() { return *__addr(); } |
| |
| template<class... _Args> |
| __temp_value(_Alloc &__alloc, _Args&& ... __args) : __a(__alloc) |
| { _Traits::construct(__a, __addr(), _VSTD::forward<_Args>(__args)...); } |
| |
| ~__temp_value() { _Traits::destroy(__a, __addr()); } |
| }; |
| #endif |
| |
| 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(_VSTD::declval<_Alloc&>().allocate(size_t(0)))>::type |
| > |
| : true_type {}; |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| _LIBCPP_POP_MACROS |
| |
| #endif // _LIBCPP_MEMORY |
