| // -*- C++ -*- |
| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP_SCOPED_ALLOCATOR |
| #define _LIBCPP_SCOPED_ALLOCATOR |
| |
| /* |
| scoped_allocator synopsis |
| |
| namespace std |
| { |
| |
| template <class OuterAlloc, class... InnerAllocs> |
| class scoped_allocator_adaptor : public OuterAlloc |
| { |
| typedef allocator_traits<OuterAlloc> OuterTraits; // exposition only |
| scoped_allocator_adaptor<InnerAllocs...> inner; // exposition only |
| public: |
| |
| typedef OuterAlloc outer_allocator_type; |
| typedef see below inner_allocator_type; |
| |
| typedef typename OuterTraits::value_type value_type; |
| typedef typename OuterTraits::size_type size_type; |
| typedef typename OuterTraits::difference_type difference_type; |
| typedef typename OuterTraits::pointer pointer; |
| typedef typename OuterTraits::const_pointer const_pointer; |
| typedef typename OuterTraits::void_pointer void_pointer; |
| typedef typename OuterTraits::const_void_pointer const_void_pointer; |
| |
| typedef see below propagate_on_container_copy_assignment; |
| typedef see below propagate_on_container_move_assignment; |
| typedef see below propagate_on_container_swap; |
| typedef see below is_always_equal; |
| |
| template <class Tp> |
| struct rebind |
| { |
| typedef scoped_allocator_adaptor< |
| OuterTraits::template rebind_alloc<Tp>, InnerAllocs...> other; |
| }; |
| |
| scoped_allocator_adaptor(); |
| template <class OuterA2> |
| scoped_allocator_adaptor(OuterA2&& outerAlloc, |
| const InnerAllocs&... innerAllocs) noexcept; |
| scoped_allocator_adaptor(const scoped_allocator_adaptor& other) noexcept; |
| scoped_allocator_adaptor(scoped_allocator_adaptor&& other) noexcept; |
| template <class OuterA2> |
| scoped_allocator_adaptor(const scoped_allocator_adaptor<OuterA2, InnerAllocs...>& other) noexcept; |
| template <class OuterA2> |
| scoped_allocator_adaptor(const scoped_allocator_adaptor<OuterA2, InnerAllocs...>&& other) noexcept; |
| |
| scoped_allocator_adaptor& operator=(const scoped_allocator_adaptor&) = default; |
| scoped_allocator_adaptor& operator=(scoped_allocator_adaptor&&) = default; |
| ~scoped_allocator_adaptor(); |
| |
| inner_allocator_type& inner_allocator() noexcept; |
| const inner_allocator_type& inner_allocator() const noexcept; |
| |
| outer_allocator_type& outer_allocator() noexcept; |
| const outer_allocator_type& outer_allocator() const noexcept; |
| |
| pointer allocate(size_type n); // [[nodiscard]] in C++20 |
| pointer allocate(size_type n, const_void_pointer hint); // [[nodiscard]] in C++20 |
| void deallocate(pointer p, size_type n) noexcept; |
| |
| size_type max_size() const; |
| template <class T, class... Args> void construct(T* p, Args&& args); |
| template <class T1, class T2, class... Args1, class... Args2> |
| void construct(pair<T1, T2>* p, piecewise_construct t, tuple<Args1...> x, |
| tuple<Args2...> y); |
| template <class T1, class T2> |
| void construct(pair<T1, T2>* p); |
| template <class T1, class T2, class U, class V> |
| void construct(pair<T1, T2>* p, U&& x, V&& y); |
| template <class T1, class T2, class U, class V> |
| void construct(pair<T1, T2>* p, const pair<U, V>& x); |
| template <class T1, class T2, class U, class V> |
| void construct(pair<T1, T2>* p, pair<U, V>&& x); |
| template <class T> void destroy(T* p); |
| |
| template <class T> void destroy(T* p) noexcept; |
| |
| scoped_allocator_adaptor select_on_container_copy_construction() const noexcept; |
| }; |
| |
| template<class OuterAlloc, class... InnerAllocs> |
| scoped_allocator_adaptor(OuterAlloc, InnerAllocs...) |
| -> scoped_allocator_adaptor<OuterAlloc, InnerAllocs...>; |
| |
| template <class OuterA1, class OuterA2, class... InnerAllocs> |
| bool |
| operator==(const scoped_allocator_adaptor<OuterA1, InnerAllocs...>& a, |
| const scoped_allocator_adaptor<OuterA2, InnerAllocs...>& b) noexcept; |
| |
| template <class OuterA1, class OuterA2, class... InnerAllocs> |
| bool |
| operator!=(const scoped_allocator_adaptor<OuterA1, InnerAllocs...>& a, |
| const scoped_allocator_adaptor<OuterA2, InnerAllocs...>& b) noexcept; // removed in C++20 |
| |
| } // std |
| |
| */ |
| |
| #include <__config> |
| #include <__memory/allocator_traits.h> |
| #include <__memory/uses_allocator_construction.h> |
| #include <__type_traits/common_type.h> |
| #include <__type_traits/enable_if.h> |
| #include <__type_traits/integral_constant.h> |
| #include <__type_traits/is_constructible.h> |
| #include <__type_traits/remove_reference.h> |
| #include <__utility/declval.h> |
| #include <__utility/forward.h> |
| #include <__utility/move.h> |
| #include <__utility/pair.h> |
| #include <__utility/piecewise_construct.h> |
| #include <tuple> |
| #include <version> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| _LIBCPP_PUSH_MACROS |
| #include <__undef_macros> |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| #if !defined(_LIBCPP_CXX03_LANG) |
| |
| // scoped_allocator_adaptor |
| |
| template <class... _Allocs> |
| class scoped_allocator_adaptor; |
| |
| template <class... _Allocs> |
| struct __get_poc_copy_assignment; |
| |
| template <class _A0> |
| struct __get_poc_copy_assignment<_A0> { |
| static const bool value = allocator_traits<_A0>::propagate_on_container_copy_assignment::value; |
| }; |
| |
| template <class _A0, class... _Allocs> |
| struct __get_poc_copy_assignment<_A0, _Allocs...> { |
| static const bool value = allocator_traits<_A0>::propagate_on_container_copy_assignment::value || |
| __get_poc_copy_assignment<_Allocs...>::value; |
| }; |
| |
| template <class... _Allocs> |
| struct __get_poc_move_assignment; |
| |
| template <class _A0> |
| struct __get_poc_move_assignment<_A0> { |
| static const bool value = allocator_traits<_A0>::propagate_on_container_move_assignment::value; |
| }; |
| |
| template <class _A0, class... _Allocs> |
| struct __get_poc_move_assignment<_A0, _Allocs...> { |
| static const bool value = allocator_traits<_A0>::propagate_on_container_move_assignment::value || |
| __get_poc_move_assignment<_Allocs...>::value; |
| }; |
| |
| template <class... _Allocs> |
| struct __get_poc_swap; |
| |
| template <class _A0> |
| struct __get_poc_swap<_A0> { |
| static const bool value = allocator_traits<_A0>::propagate_on_container_swap::value; |
| }; |
| |
| template <class _A0, class... _Allocs> |
| struct __get_poc_swap<_A0, _Allocs...> { |
| static const bool value = |
| allocator_traits<_A0>::propagate_on_container_swap::value || __get_poc_swap<_Allocs...>::value; |
| }; |
| |
| template <class... _Allocs> |
| struct __get_is_always_equal; |
| |
| template <class _A0> |
| struct __get_is_always_equal<_A0> { |
| static const bool value = allocator_traits<_A0>::is_always_equal::value; |
| }; |
| |
| template <class _A0, class... _Allocs> |
| struct __get_is_always_equal<_A0, _Allocs...> { |
| static const bool value = allocator_traits<_A0>::is_always_equal::value && __get_is_always_equal<_Allocs...>::value; |
| }; |
| |
| template <class... _Allocs> |
| class __scoped_allocator_storage; |
| |
| template <class _OuterAlloc, class... _InnerAllocs> |
| class __scoped_allocator_storage<_OuterAlloc, _InnerAllocs...> : public _OuterAlloc { |
| typedef _OuterAlloc outer_allocator_type; |
| |
| protected: |
| typedef scoped_allocator_adaptor<_InnerAllocs...> inner_allocator_type; |
| |
| private: |
| inner_allocator_type __inner_; |
| |
| protected: |
| _LIBCPP_HIDE_FROM_ABI __scoped_allocator_storage() _NOEXCEPT {} |
| |
| template <class _OuterA2, __enable_if_t<is_constructible<outer_allocator_type, _OuterA2>::value, int> = 0> |
| _LIBCPP_HIDE_FROM_ABI |
| __scoped_allocator_storage(_OuterA2&& __outer_alloc, const _InnerAllocs&... __inner_allocs) _NOEXCEPT |
| : outer_allocator_type(std::forward<_OuterA2>(__outer_alloc)), |
| __inner_(__inner_allocs...) {} |
| |
| template <class _OuterA2, __enable_if_t<is_constructible<outer_allocator_type, const _OuterA2&>::value, int> = 0> |
| _LIBCPP_HIDE_FROM_ABI |
| __scoped_allocator_storage(const __scoped_allocator_storage<_OuterA2, _InnerAllocs...>& __other) _NOEXCEPT |
| : outer_allocator_type(__other.outer_allocator()), |
| __inner_(__other.inner_allocator()) {} |
| |
| template <class _OuterA2, __enable_if_t<is_constructible<outer_allocator_type, _OuterA2>::value, int> = 0> |
| _LIBCPP_HIDE_FROM_ABI |
| __scoped_allocator_storage(__scoped_allocator_storage<_OuterA2, _InnerAllocs...>&& __other) _NOEXCEPT |
| : outer_allocator_type(std::move(__other.outer_allocator())), |
| __inner_(std::move(__other.inner_allocator())) {} |
| |
| template <class _OuterA2, __enable_if_t<is_constructible<outer_allocator_type, _OuterA2>::value, int> = 0> |
| _LIBCPP_HIDE_FROM_ABI __scoped_allocator_storage(_OuterA2&& __o, const inner_allocator_type& __i) _NOEXCEPT |
| : outer_allocator_type(std::forward<_OuterA2>(__o)), |
| __inner_(__i) {} |
| |
| _LIBCPP_HIDE_FROM_ABI inner_allocator_type& inner_allocator() _NOEXCEPT { return __inner_; } |
| _LIBCPP_HIDE_FROM_ABI const inner_allocator_type& inner_allocator() const _NOEXCEPT { return __inner_; } |
| |
| _LIBCPP_HIDE_FROM_ABI outer_allocator_type& outer_allocator() _NOEXCEPT { |
| return static_cast<outer_allocator_type&>(*this); |
| } |
| _LIBCPP_HIDE_FROM_ABI const outer_allocator_type& outer_allocator() const _NOEXCEPT { |
| return static_cast<const outer_allocator_type&>(*this); |
| } |
| |
| scoped_allocator_adaptor<outer_allocator_type, _InnerAllocs...> _LIBCPP_HIDE_FROM_ABI |
| select_on_container_copy_construction() const _NOEXCEPT { |
| return scoped_allocator_adaptor<outer_allocator_type, _InnerAllocs...>( |
| allocator_traits<outer_allocator_type>::select_on_container_copy_construction(outer_allocator()), |
| allocator_traits<inner_allocator_type>::select_on_container_copy_construction(inner_allocator())); |
| } |
| |
| template <class...> |
| friend class __scoped_allocator_storage; |
| }; |
| |
| template <class _OuterAlloc> |
| class __scoped_allocator_storage<_OuterAlloc> : public _OuterAlloc { |
| typedef _OuterAlloc outer_allocator_type; |
| |
| protected: |
| typedef scoped_allocator_adaptor<_OuterAlloc> inner_allocator_type; |
| |
| _LIBCPP_HIDE_FROM_ABI __scoped_allocator_storage() _NOEXCEPT {} |
| |
| template <class _OuterA2, __enable_if_t<is_constructible<outer_allocator_type, _OuterA2>::value, int> = 0> |
| _LIBCPP_HIDE_FROM_ABI __scoped_allocator_storage(_OuterA2&& __outer_alloc) _NOEXCEPT |
| : outer_allocator_type(std::forward<_OuterA2>(__outer_alloc)) {} |
| |
| template <class _OuterA2, __enable_if_t<is_constructible<outer_allocator_type, const _OuterA2&>::value, int> = 0> |
| _LIBCPP_HIDE_FROM_ABI __scoped_allocator_storage(const __scoped_allocator_storage<_OuterA2>& __other) _NOEXCEPT |
| : outer_allocator_type(__other.outer_allocator()) {} |
| |
| template <class _OuterA2, __enable_if_t<is_constructible<outer_allocator_type, _OuterA2>::value, int> = 0> |
| _LIBCPP_HIDE_FROM_ABI __scoped_allocator_storage(__scoped_allocator_storage<_OuterA2>&& __other) _NOEXCEPT |
| : outer_allocator_type(std::move(__other.outer_allocator())) {} |
| |
| _LIBCPP_HIDE_FROM_ABI inner_allocator_type& inner_allocator() _NOEXCEPT { |
| return static_cast<inner_allocator_type&>(*this); |
| } |
| _LIBCPP_HIDE_FROM_ABI const inner_allocator_type& inner_allocator() const _NOEXCEPT { |
| return static_cast<const inner_allocator_type&>(*this); |
| } |
| |
| _LIBCPP_HIDE_FROM_ABI outer_allocator_type& outer_allocator() _NOEXCEPT { |
| return static_cast<outer_allocator_type&>(*this); |
| } |
| _LIBCPP_HIDE_FROM_ABI const outer_allocator_type& outer_allocator() const _NOEXCEPT { |
| return static_cast<const outer_allocator_type&>(*this); |
| } |
| |
| _LIBCPP_HIDE_FROM_ABI scoped_allocator_adaptor<outer_allocator_type> |
| select_on_container_copy_construction() const _NOEXCEPT { |
| return scoped_allocator_adaptor<outer_allocator_type>( |
| allocator_traits<outer_allocator_type>::select_on_container_copy_construction(outer_allocator())); |
| } |
| |
| __scoped_allocator_storage(const outer_allocator_type& __o, const inner_allocator_type& __i) _NOEXCEPT; |
| |
| template <class...> |
| friend class __scoped_allocator_storage; |
| }; |
| |
| // __outermost |
| |
| template <class _Alloc> |
| decltype(std::declval<_Alloc>().outer_allocator(), true_type()) __has_outer_allocator_test(_Alloc&& __a); |
| |
| template <class _Alloc> |
| false_type __has_outer_allocator_test(const volatile _Alloc& __a); |
| |
| template <class _Alloc> |
| struct __has_outer_allocator |
| : public common_type< decltype(std::__has_outer_allocator_test(std::declval<_Alloc&>()))>::type {}; |
| |
| template <class _Alloc, bool = __has_outer_allocator<_Alloc>::value> |
| struct __outermost { |
| typedef _Alloc type; |
| _LIBCPP_HIDE_FROM_ABI type& operator()(type& __a) const _NOEXCEPT { return __a; } |
| }; |
| |
| template <class _Alloc> |
| struct __outermost<_Alloc, true> { |
| typedef __libcpp_remove_reference_t< decltype(std::declval<_Alloc>().outer_allocator()) > _OuterAlloc; |
| typedef typename __outermost<_OuterAlloc>::type type; |
| _LIBCPP_HIDE_FROM_ABI type& operator()(_Alloc& __a) const _NOEXCEPT { |
| return __outermost<_OuterAlloc>()(__a.outer_allocator()); |
| } |
| }; |
| |
| template <class _OuterAlloc, class... _InnerAllocs> |
| class _LIBCPP_TEMPLATE_VIS scoped_allocator_adaptor<_OuterAlloc, _InnerAllocs...> |
| : public __scoped_allocator_storage<_OuterAlloc, _InnerAllocs...> { |
| typedef __scoped_allocator_storage<_OuterAlloc, _InnerAllocs...> _Base; |
| typedef allocator_traits<_OuterAlloc> _OuterTraits; |
| |
| public: |
| typedef _OuterAlloc outer_allocator_type; |
| typedef typename _Base::inner_allocator_type inner_allocator_type; |
| typedef typename _OuterTraits::size_type size_type; |
| typedef typename _OuterTraits::difference_type difference_type; |
| typedef typename _OuterTraits::pointer pointer; |
| typedef typename _OuterTraits::const_pointer const_pointer; |
| typedef typename _OuterTraits::void_pointer void_pointer; |
| typedef typename _OuterTraits::const_void_pointer const_void_pointer; |
| |
| typedef integral_constant< bool, __get_poc_copy_assignment<outer_allocator_type, _InnerAllocs...>::value > |
| propagate_on_container_copy_assignment; |
| typedef integral_constant< bool, __get_poc_move_assignment<outer_allocator_type, _InnerAllocs...>::value > |
| propagate_on_container_move_assignment; |
| typedef integral_constant< bool, __get_poc_swap<outer_allocator_type, _InnerAllocs...>::value > |
| propagate_on_container_swap; |
| typedef integral_constant< bool, __get_is_always_equal<outer_allocator_type, _InnerAllocs...>::value > |
| is_always_equal; |
| |
| template <class _Tp> |
| struct rebind { |
| typedef scoped_allocator_adaptor< typename _OuterTraits::template rebind_alloc<_Tp>, _InnerAllocs... > other; |
| }; |
| |
| _LIBCPP_HIDE_FROM_ABI scoped_allocator_adaptor() _NOEXCEPT {} |
| template <class _OuterA2, __enable_if_t<is_constructible<outer_allocator_type, _OuterA2>::value, int> = 0> |
| _LIBCPP_HIDE_FROM_ABI |
| scoped_allocator_adaptor(_OuterA2&& __outer_alloc, const _InnerAllocs&... __inner_allocs) _NOEXCEPT |
| : _Base(std::forward<_OuterA2>(__outer_alloc), __inner_allocs...) {} |
| // scoped_allocator_adaptor(const scoped_allocator_adaptor& __other) = default; |
| template <class _OuterA2, __enable_if_t<is_constructible<outer_allocator_type, const _OuterA2&>::value, int> = 0> |
| _LIBCPP_HIDE_FROM_ABI |
| scoped_allocator_adaptor(const scoped_allocator_adaptor<_OuterA2, _InnerAllocs...>& __other) _NOEXCEPT |
| : _Base(__other) {} |
| template <class _OuterA2, __enable_if_t<is_constructible<outer_allocator_type, _OuterA2>::value, int> = 0> |
| _LIBCPP_HIDE_FROM_ABI |
| scoped_allocator_adaptor(scoped_allocator_adaptor<_OuterA2, _InnerAllocs...>&& __other) _NOEXCEPT |
| : _Base(std::move(__other)) {} |
| |
| // scoped_allocator_adaptor& operator=(const scoped_allocator_adaptor&) = default; |
| // scoped_allocator_adaptor& operator=(scoped_allocator_adaptor&&) = default; |
| // ~scoped_allocator_adaptor() = default; |
| |
| _LIBCPP_HIDE_FROM_ABI inner_allocator_type& inner_allocator() _NOEXCEPT { return _Base::inner_allocator(); } |
| _LIBCPP_HIDE_FROM_ABI const inner_allocator_type& inner_allocator() const _NOEXCEPT { |
| return _Base::inner_allocator(); |
| } |
| |
| _LIBCPP_HIDE_FROM_ABI outer_allocator_type& outer_allocator() _NOEXCEPT { return _Base::outer_allocator(); } |
| _LIBCPP_HIDE_FROM_ABI const outer_allocator_type& outer_allocator() const _NOEXCEPT { |
| return _Base::outer_allocator(); |
| } |
| |
| _LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI pointer allocate(size_type __n) { |
| return allocator_traits<outer_allocator_type>::allocate(outer_allocator(), __n); |
| } |
| _LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI pointer allocate(size_type __n, const_void_pointer __hint) { |
| return allocator_traits<outer_allocator_type>::allocate(outer_allocator(), __n, __hint); |
| } |
| |
| _LIBCPP_HIDE_FROM_ABI void deallocate(pointer __p, size_type __n) _NOEXCEPT { |
| allocator_traits<outer_allocator_type>::deallocate(outer_allocator(), __p, __n); |
| } |
| |
| _LIBCPP_HIDE_FROM_ABI size_type max_size() const { |
| return allocator_traits<outer_allocator_type>::max_size(outer_allocator()); |
| } |
| |
| # if _LIBCPP_STD_VER >= 20 |
| template <class _Type, class... _Args> |
| _LIBCPP_HIDE_FROM_ABI void construct(_Type* __ptr, _Args&&... __args) { |
| using _OM = __outermost<outer_allocator_type>; |
| std::apply( |
| [__ptr, this](auto&&... __newargs) { |
| allocator_traits<typename _OM::type>::construct( |
| _OM()(outer_allocator()), __ptr, std::forward<decltype(__newargs)>(__newargs)...); |
| }, |
| std::uses_allocator_construction_args<_Type>(inner_allocator(), std::forward<_Args>(__args)...)); |
| } |
| # else |
| template <class _Tp, class... _Args> |
| _LIBCPP_HIDE_FROM_ABI void construct(_Tp* __p, _Args&&... __args) { |
| __construct(__uses_alloc_ctor<_Tp, inner_allocator_type&, _Args...>(), __p, std::forward<_Args>(__args)...); |
| } |
| |
| template <class _T1, class _T2, class... _Args1, class... _Args2> |
| _LIBCPP_HIDE_FROM_ABI void |
| construct(pair<_T1, _T2>* __p, piecewise_construct_t, tuple<_Args1...> __x, tuple<_Args2...> __y) { |
| typedef __outermost<outer_allocator_type> _OM; |
| allocator_traits<typename _OM::type>::construct( |
| _OM()(outer_allocator()), |
| __p, |
| piecewise_construct, |
| __transform_tuple(typename __uses_alloc_ctor< _T1, inner_allocator_type&, _Args1... >::type(), |
| std::move(__x), |
| typename __make_tuple_indices<sizeof...(_Args1)>::type{}), |
| __transform_tuple(typename __uses_alloc_ctor< _T2, inner_allocator_type&, _Args2... >::type(), |
| std::move(__y), |
| typename __make_tuple_indices<sizeof...(_Args2)>::type{})); |
| } |
| |
| template <class _T1, class _T2> |
| _LIBCPP_HIDE_FROM_ABI void construct(pair<_T1, _T2>* __p) { |
| construct(__p, piecewise_construct, tuple<>{}, tuple<>{}); |
| } |
| |
| template <class _T1, class _T2, class _Up, class _Vp> |
| _LIBCPP_HIDE_FROM_ABI void construct(pair<_T1, _T2>* __p, _Up&& __x, _Vp&& __y) { |
| construct(__p, |
| piecewise_construct, |
| std::forward_as_tuple(std::forward<_Up>(__x)), |
| std::forward_as_tuple(std::forward<_Vp>(__y))); |
| } |
| |
| template <class _T1, class _T2, class _Up, class _Vp> |
| _LIBCPP_HIDE_FROM_ABI void construct(pair<_T1, _T2>* __p, const pair<_Up, _Vp>& __x) { |
| construct(__p, piecewise_construct, std::forward_as_tuple(__x.first), std::forward_as_tuple(__x.second)); |
| } |
| |
| template <class _T1, class _T2, class _Up, class _Vp> |
| _LIBCPP_HIDE_FROM_ABI void construct(pair<_T1, _T2>* __p, pair<_Up, _Vp>&& __x) { |
| construct(__p, |
| piecewise_construct, |
| std::forward_as_tuple(std::forward<_Up>(__x.first)), |
| std::forward_as_tuple(std::forward<_Vp>(__x.second))); |
| } |
| # endif |
| |
| template <class _Tp> |
| _LIBCPP_HIDE_FROM_ABI void destroy(_Tp* __p) { |
| typedef __outermost<outer_allocator_type> _OM; |
| allocator_traits<typename _OM::type>::destroy(_OM()(outer_allocator()), __p); |
| } |
| |
| _LIBCPP_HIDE_FROM_ABI scoped_allocator_adaptor select_on_container_copy_construction() const _NOEXCEPT { |
| return _Base::select_on_container_copy_construction(); |
| } |
| |
| private: |
| _LIBCPP_HIDE_FROM_ABI explicit scoped_allocator_adaptor( |
| outer_allocator_type&& __o, inner_allocator_type&& __i) _NOEXCEPT : _Base(std::move(__o), std::move(__i)) {} |
| |
| template <class _Tp, class... _Args> |
| _LIBCPP_HIDE_FROM_ABI void __construct(integral_constant<int, 0>, _Tp* __p, _Args&&... __args) { |
| typedef __outermost<outer_allocator_type> _OM; |
| allocator_traits<typename _OM::type>::construct(_OM()(outer_allocator()), __p, std::forward<_Args>(__args)...); |
| } |
| |
| template <class _Tp, class... _Args> |
| _LIBCPP_HIDE_FROM_ABI void __construct(integral_constant<int, 1>, _Tp* __p, _Args&&... __args) { |
| typedef __outermost<outer_allocator_type> _OM; |
| allocator_traits<typename _OM::type>::construct( |
| _OM()(outer_allocator()), __p, allocator_arg, inner_allocator(), std::forward<_Args>(__args)...); |
| } |
| |
| template <class _Tp, class... _Args> |
| _LIBCPP_HIDE_FROM_ABI void __construct(integral_constant<int, 2>, _Tp* __p, _Args&&... __args) { |
| typedef __outermost<outer_allocator_type> _OM; |
| allocator_traits<typename _OM::type>::construct( |
| _OM()(outer_allocator()), __p, std::forward<_Args>(__args)..., inner_allocator()); |
| } |
| |
| template <class... _Args, size_t... _Idx> |
| _LIBCPP_HIDE_FROM_ABI tuple<_Args&&...> |
| __transform_tuple(integral_constant<int, 0>, tuple<_Args...>&& __t, __tuple_indices<_Idx...>) { |
| return std::forward_as_tuple(std::get<_Idx>(std::move(__t))...); |
| } |
| |
| template <class... _Args, size_t... _Idx> |
| _LIBCPP_HIDE_FROM_ABI tuple<allocator_arg_t, inner_allocator_type&, _Args&&...> |
| __transform_tuple(integral_constant<int, 1>, tuple<_Args...>&& __t, __tuple_indices<_Idx...>) { |
| using _Tup = tuple<allocator_arg_t, inner_allocator_type&, _Args&&...>; |
| return _Tup(allocator_arg, inner_allocator(), std::get<_Idx>(std::move(__t))...); |
| } |
| |
| template <class... _Args, size_t... _Idx> |
| _LIBCPP_HIDE_FROM_ABI tuple<_Args&&..., inner_allocator_type&> |
| __transform_tuple(integral_constant<int, 2>, tuple<_Args...>&& __t, __tuple_indices<_Idx...>) { |
| using _Tup = tuple<_Args&&..., inner_allocator_type&>; |
| return _Tup(std::get<_Idx>(std::move(__t))..., inner_allocator()); |
| } |
| |
| template <class...> |
| friend class __scoped_allocator_storage; |
| }; |
| |
| # if _LIBCPP_STD_VER >= 17 |
| template <class _OuterAlloc, class... _InnerAllocs> |
| scoped_allocator_adaptor(_OuterAlloc, _InnerAllocs...) -> scoped_allocator_adaptor<_OuterAlloc, _InnerAllocs...>; |
| # endif |
| |
| template <class _OuterA1, class _OuterA2> |
| inline _LIBCPP_HIDE_FROM_ABI bool |
| operator==(const scoped_allocator_adaptor<_OuterA1>& __a, const scoped_allocator_adaptor<_OuterA2>& __b) _NOEXCEPT { |
| return __a.outer_allocator() == __b.outer_allocator(); |
| } |
| |
| template <class _OuterA1, class _OuterA2, class _InnerA0, class... _InnerAllocs> |
| inline _LIBCPP_HIDE_FROM_ABI bool |
| operator==(const scoped_allocator_adaptor<_OuterA1, _InnerA0, _InnerAllocs...>& __a, |
| const scoped_allocator_adaptor<_OuterA2, _InnerA0, _InnerAllocs...>& __b) _NOEXCEPT { |
| return __a.outer_allocator() == __b.outer_allocator() && __a.inner_allocator() == __b.inner_allocator(); |
| } |
| |
| # if _LIBCPP_STD_VER <= 17 |
| |
| template <class _OuterA1, class _OuterA2, class... _InnerAllocs> |
| inline _LIBCPP_HIDE_FROM_ABI bool operator!=(const scoped_allocator_adaptor<_OuterA1, _InnerAllocs...>& __a, |
| const scoped_allocator_adaptor<_OuterA2, _InnerAllocs...>& __b) _NOEXCEPT { |
| return !(__a == __b); |
| } |
| |
| # endif // _LIBCPP_STD_VER <= 17 |
| |
| #endif // !defined(_LIBCPP_CXX03_LANG) |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| _LIBCPP_POP_MACROS |
| |
| #if !defined(_LIBCPP_REMOVE_TRANSITIVE_INCLUDES) && _LIBCPP_STD_VER <= 20 |
| # include <atomic> |
| # include <climits> |
| # include <concepts> |
| # include <cstring> |
| # include <ctime> |
| # include <iterator> |
| # include <memory> |
| # include <ratio> |
| # include <stdexcept> |
| # include <type_traits> |
| # include <variant> |
| #endif |
| |
| #endif // _LIBCPP_SCOPED_ALLOCATOR |
