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+// -*- C++ -*-
+//===-------------------------- scoped_allocator --------------------------===//
+//
+// 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_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 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;
+
+} // std
+
+*/
+
+#include <__config>
+#include <memory>
+
+#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
+#pragma GCC system_header
+#endif
+
+_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_INLINE_VISIBILITY
+ __scoped_allocator_storage() _NOEXCEPT {}
+
+ template <class _OuterA2,
+ class = typename enable_if<
+ is_constructible<outer_allocator_type, _OuterA2>::value
+ >::type>
+ _LIBCPP_INLINE_VISIBILITY
+ __scoped_allocator_storage(_OuterA2&& __outerAlloc,
+ const _InnerAllocs& ...__innerAllocs) _NOEXCEPT
+ : outer_allocator_type(_VSTD::forward<_OuterA2>(__outerAlloc)),
+ __inner_(__innerAllocs...) {}
+
+ template <class _OuterA2,
+ class = typename enable_if<
+ is_constructible<outer_allocator_type, const _OuterA2&>::value
+ >::type>
+ _LIBCPP_INLINE_VISIBILITY
+ __scoped_allocator_storage(
+ const __scoped_allocator_storage<_OuterA2, _InnerAllocs...>& __other) _NOEXCEPT
+ : outer_allocator_type(__other.outer_allocator()),
+ __inner_(__other.inner_allocator()) {}
+
+ template <class _OuterA2,
+ class = typename enable_if<
+ is_constructible<outer_allocator_type, _OuterA2>::value
+ >::type>
+ _LIBCPP_INLINE_VISIBILITY
+ __scoped_allocator_storage(
+ __scoped_allocator_storage<_OuterA2, _InnerAllocs...>&& __other) _NOEXCEPT
+ : outer_allocator_type(_VSTD::move(__other.outer_allocator())),
+ __inner_(_VSTD::move(__other.inner_allocator())) {}
+
+ template <class _OuterA2,
+ class = typename enable_if<
+ is_constructible<outer_allocator_type, _OuterA2>::value
+ >::type>
+ _LIBCPP_INLINE_VISIBILITY
+ __scoped_allocator_storage(_OuterA2&& __o,
+ const inner_allocator_type& __i) _NOEXCEPT
+ : outer_allocator_type(_VSTD::forward<_OuterA2>(__o)),
+ __inner_(__i)
+ {
+ }
+
+ _LIBCPP_INLINE_VISIBILITY
+ inner_allocator_type& inner_allocator() _NOEXCEPT {return __inner_;}
+ _LIBCPP_INLINE_VISIBILITY
+ const inner_allocator_type& inner_allocator() const _NOEXCEPT {return __inner_;}
+
+ _LIBCPP_INLINE_VISIBILITY
+ outer_allocator_type& outer_allocator() _NOEXCEPT
+ {return static_cast<outer_allocator_type&>(*this);}
+ _LIBCPP_INLINE_VISIBILITY
+ const outer_allocator_type& outer_allocator() const _NOEXCEPT
+ {return static_cast<const outer_allocator_type&>(*this);}
+
+ scoped_allocator_adaptor<outer_allocator_type, _InnerAllocs...>
+ _LIBCPP_INLINE_VISIBILITY
+ 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_INLINE_VISIBILITY
+ __scoped_allocator_storage() _NOEXCEPT {}
+
+ template <class _OuterA2,
+ class = typename enable_if<
+ is_constructible<outer_allocator_type, _OuterA2>::value
+ >::type>
+ _LIBCPP_INLINE_VISIBILITY
+ __scoped_allocator_storage(_OuterA2&& __outerAlloc) _NOEXCEPT
+ : outer_allocator_type(_VSTD::forward<_OuterA2>(__outerAlloc)) {}
+
+ template <class _OuterA2,
+ class = typename enable_if<
+ is_constructible<outer_allocator_type, const _OuterA2&>::value
+ >::type>
+ _LIBCPP_INLINE_VISIBILITY
+ __scoped_allocator_storage(
+ const __scoped_allocator_storage<_OuterA2>& __other) _NOEXCEPT
+ : outer_allocator_type(__other.outer_allocator()) {}
+
+ template <class _OuterA2,
+ class = typename enable_if<
+ is_constructible<outer_allocator_type, _OuterA2>::value
+ >::type>
+ _LIBCPP_INLINE_VISIBILITY
+ __scoped_allocator_storage(
+ __scoped_allocator_storage<_OuterA2>&& __other) _NOEXCEPT
+ : outer_allocator_type(_VSTD::move(__other.outer_allocator())) {}
+
+ _LIBCPP_INLINE_VISIBILITY
+ inner_allocator_type& inner_allocator() _NOEXCEPT
+ {return static_cast<inner_allocator_type&>(*this);}
+ _LIBCPP_INLINE_VISIBILITY
+ const inner_allocator_type& inner_allocator() const _NOEXCEPT
+ {return static_cast<const inner_allocator_type&>(*this);}
+
+ _LIBCPP_INLINE_VISIBILITY
+ outer_allocator_type& outer_allocator() _NOEXCEPT
+ {return static_cast<outer_allocator_type&>(*this);}
+ _LIBCPP_INLINE_VISIBILITY
+ const outer_allocator_type& outer_allocator() const _NOEXCEPT
+ {return static_cast<const outer_allocator_type&>(*this);}
+
+ _LIBCPP_INLINE_VISIBILITY
+ 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(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(__has_outer_allocator_test(declval<_Alloc&>()))
+ >::type
+{
+};
+
+template <class _Alloc, bool = __has_outer_allocator<_Alloc>::value>
+struct __outermost
+{
+ typedef _Alloc type;
+ _LIBCPP_INLINE_VISIBILITY
+ type& operator()(type& __a) const _NOEXCEPT {return __a;}
+};
+
+template <class _Alloc>
+struct __outermost<_Alloc, true>
+{
+ typedef typename remove_reference
+ <
+ decltype(_VSTD::declval<_Alloc>().outer_allocator())
+ >::type _OuterAlloc;
+ typedef typename __outermost<_OuterAlloc>::type type;
+ _LIBCPP_INLINE_VISIBILITY
+ 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_INLINE_VISIBILITY
+ scoped_allocator_adaptor() _NOEXCEPT {}
+ template <class _OuterA2,
+ class = typename enable_if<
+ is_constructible<outer_allocator_type, _OuterA2>::value
+ >::type>
+ _LIBCPP_INLINE_VISIBILITY
+ scoped_allocator_adaptor(_OuterA2&& __outerAlloc,
+ const _InnerAllocs& ...__innerAllocs) _NOEXCEPT
+ : base(_VSTD::forward<_OuterA2>(__outerAlloc), __innerAllocs...) {}
+ // scoped_allocator_adaptor(const scoped_allocator_adaptor& __other) = default;
+ template <class _OuterA2,
+ class = typename enable_if<
+ is_constructible<outer_allocator_type, const _OuterA2&>::value
+ >::type>
+ _LIBCPP_INLINE_VISIBILITY
+ scoped_allocator_adaptor(
+ const scoped_allocator_adaptor<_OuterA2, _InnerAllocs...>& __other) _NOEXCEPT
+ : base(__other) {}
+ template <class _OuterA2,
+ class = typename enable_if<
+ is_constructible<outer_allocator_type, _OuterA2>::value
+ >::type>
+ _LIBCPP_INLINE_VISIBILITY
+ scoped_allocator_adaptor(
+ scoped_allocator_adaptor<_OuterA2, _InnerAllocs...>&& __other) _NOEXCEPT
+ : base(_VSTD::move(__other)) {}
+
+ // scoped_allocator_adaptor& operator=(const scoped_allocator_adaptor&) = default;
+ // scoped_allocator_adaptor& operator=(scoped_allocator_adaptor&&) = default;
+ // ~scoped_allocator_adaptor() = default;
+
+ _LIBCPP_INLINE_VISIBILITY
+ inner_allocator_type& inner_allocator() _NOEXCEPT
+ {return base::inner_allocator();}
+ _LIBCPP_INLINE_VISIBILITY
+ const inner_allocator_type& inner_allocator() const _NOEXCEPT
+ {return base::inner_allocator();}
+
+ _LIBCPP_INLINE_VISIBILITY
+ outer_allocator_type& outer_allocator() _NOEXCEPT
+ {return base::outer_allocator();}
+ _LIBCPP_INLINE_VISIBILITY
+ const outer_allocator_type& outer_allocator() const _NOEXCEPT
+ {return base::outer_allocator();}
+
+ _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY
+ pointer allocate(size_type __n)
+ {return allocator_traits<outer_allocator_type>::
+ allocate(outer_allocator(), __n);}
+ _LIBCPP_NODISCARD_AFTER_CXX17 _LIBCPP_INLINE_VISIBILITY
+ pointer allocate(size_type __n, const_void_pointer __hint)
+ {return allocator_traits<outer_allocator_type>::
+ allocate(outer_allocator(), __n, __hint);}
+
+ _LIBCPP_INLINE_VISIBILITY
+ void deallocate(pointer __p, size_type __n) _NOEXCEPT
+ {allocator_traits<outer_allocator_type>::
+ deallocate(outer_allocator(), __p, __n);}
+
+ _LIBCPP_INLINE_VISIBILITY
+ size_type max_size() const
+ {return allocator_traits<outer_allocator_type>::max_size(outer_allocator());}
+
+ template <class _Tp, class... _Args>
+ _LIBCPP_INLINE_VISIBILITY
+ void construct(_Tp* __p, _Args&& ...__args)
+ {__construct(__uses_alloc_ctor<_Tp, inner_allocator_type&, _Args...>(),
+ __p, _VSTD::forward<_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)
+ {
+ 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()
+ , _VSTD::move(__x)
+ , typename __make_tuple_indices<sizeof...(_Args1)>::type{}
+ )
+ , __transform_tuple(
+ typename __uses_alloc_ctor<
+ _T2, inner_allocator_type&, _Args2...
+ >::type()
+ , _VSTD::move(__y)
+ , typename __make_tuple_indices<sizeof...(_Args2)>::type{}
+ )
+ );
+ }
+
+ template <class _T1, class _T2>
+ void construct(pair<_T1, _T2>* __p)
+ { construct(__p, piecewise_construct, tuple<>{}, tuple<>{}); }
+
+ template <class _T1, class _T2, class _Up, class _Vp>
+ void construct(pair<_T1, _T2>* __p, _Up&& __x, _Vp&& __y) {
+ construct(__p, piecewise_construct,
+ _VSTD::forward_as_tuple(_VSTD::forward<_Up>(__x)),
+ _VSTD::forward_as_tuple(_VSTD::forward<_Vp>(__y)));
+ }
+
+ template <class _T1, class _T2, class _Up, class _Vp>
+ void construct(pair<_T1, _T2>* __p, const pair<_Up, _Vp>& __x) {
+ construct(__p, piecewise_construct,
+ _VSTD::forward_as_tuple(__x.first),
+ _VSTD::forward_as_tuple(__x.second));
+ }
+
+ template <class _T1, class _T2, class _Up, class _Vp>
+ void construct(pair<_T1, _T2>* __p, pair<_Up, _Vp>&& __x) {
+ construct(__p, piecewise_construct,
+ _VSTD::forward_as_tuple(_VSTD::forward<_Up>(__x.first)),
+ _VSTD::forward_as_tuple(_VSTD::forward<_Vp>(__x.second)));
+ }
+
+ template <class _Tp>
+ _LIBCPP_INLINE_VISIBILITY
+ void destroy(_Tp* __p)
+ {
+ typedef __outermost<outer_allocator_type> _OM;
+ allocator_traits<typename _OM::type>::
+ destroy(_OM()(outer_allocator()), __p);
+ }
+
+ _LIBCPP_INLINE_VISIBILITY
+ scoped_allocator_adaptor select_on_container_copy_construction() const _NOEXCEPT
+ {return base::select_on_container_copy_construction();}
+
+private:
+
+
+ template <class _OuterA2,
+ class = typename enable_if<
+ is_constructible<outer_allocator_type, _OuterA2>::value
+ >::type>
+ _LIBCPP_INLINE_VISIBILITY
+ scoped_allocator_adaptor(_OuterA2&& __o,
+ const inner_allocator_type& __i) _NOEXCEPT
+ : base(_VSTD::forward<_OuterA2>(__o), __i) {}
+
+ template <class _Tp, class... _Args>
+ _LIBCPP_INLINE_VISIBILITY
+ 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,
+ _VSTD::forward<_Args>(__args)...
+ );
+ }
+
+ template <class _Tp, class... _Args>
+ _LIBCPP_INLINE_VISIBILITY
+ 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(),
+ _VSTD::forward<_Args>(__args)...
+ );
+ }
+
+ template <class _Tp, class... _Args>
+ _LIBCPP_INLINE_VISIBILITY
+ 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,
+ _VSTD::forward<_Args>(__args)...,
+ inner_allocator()
+ );
+ }
+
+ template <class ..._Args, size_t ..._Idx>
+ _LIBCPP_INLINE_VISIBILITY
+ tuple<_Args&&...>
+ __transform_tuple(integral_constant<int, 0>, tuple<_Args...>&& __t,
+ __tuple_indices<_Idx...>)
+ {
+ return _VSTD::forward_as_tuple(_VSTD::get<_Idx>(_VSTD::move(__t))...);
+ }
+
+ template <class ..._Args, size_t ..._Idx>
+ _LIBCPP_INLINE_VISIBILITY
+ 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(),
+ _VSTD::get<_Idx>(_VSTD::move(__t))...);
+ }
+
+ template <class ..._Args, size_t ..._Idx>
+ _LIBCPP_INLINE_VISIBILITY
+ 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(_VSTD::get<_Idx>(_VSTD::move(__t))..., inner_allocator());
+ }
+
+ template <class...> friend class __scoped_allocator_storage;
+};
+
+template <class _OuterA1, class _OuterA2>
+inline _LIBCPP_INLINE_VISIBILITY
+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_INLINE_VISIBILITY
+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();
+}
+
+template <class _OuterA1, class _OuterA2, class... _InnerAllocs>
+inline _LIBCPP_INLINE_VISIBILITY
+bool
+operator!=(const scoped_allocator_adaptor<_OuterA1, _InnerAllocs...>& __a,
+ const scoped_allocator_adaptor<_OuterA2, _InnerAllocs...>& __b) _NOEXCEPT
+{
+ return !(__a == __b);
+}
+
+#endif // !defined(_LIBCPP_CXX03_LANG)
+
+_LIBCPP_END_NAMESPACE_STD
+
+#endif // _LIBCPP_SCOPED_ALLOCATOR