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1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef _LIBCPP___CXX03___MEMORY_SWAP_ALLOCATOR_H10#define _LIBCPP___CXX03___MEMORY_SWAP_ALLOCATOR_H11 12#include <__cxx03/__config>13#include <__cxx03/__memory/allocator_traits.h>14#include <__cxx03/__type_traits/integral_constant.h>15#include <__cxx03/__type_traits/is_swappable.h>16#include <__cxx03/__utility/swap.h>17 18#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)19# pragma GCC system_header20#endif21 22_LIBCPP_BEGIN_NAMESPACE_STD23 24template <typename _Alloc>25_LIBCPP_HIDE_FROM_ABI void __swap_allocator(_Alloc& __a1, _Alloc& __a2, true_type) {26 using std::swap;27 swap(__a1, __a2);28}29 30template <typename _Alloc>31inline _LIBCPP_HIDE_FROM_ABI void __swap_allocator(_Alloc&, _Alloc&, false_type) _NOEXCEPT {}32 33template <typename _Alloc>34inline _LIBCPP_HIDE_FROM_ABI void __swap_allocator(_Alloc& __a1, _Alloc& __a2) {35 std::__swap_allocator(36 __a1, __a2, integral_constant<bool, allocator_traits<_Alloc>::propagate_on_container_swap::value>());37}38 39_LIBCPP_END_NAMESPACE_STD40 41#endif // _LIBCPP___CXX03___MEMORY_SWAP_ALLOCATOR_H42