| //===----------------------------------------------------------------------===// |
| // |
| // 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___CXX03___MEMORY_SWAP_ALLOCATOR_H |
| #define _LIBCPP___CXX03___MEMORY_SWAP_ALLOCATOR_H |
| |
| #include <__cxx03/__config> |
| #include <__cxx03/__memory/allocator_traits.h> |
| #include <__cxx03/__type_traits/integral_constant.h> |
| #include <__cxx03/__type_traits/is_swappable.h> |
| #include <__cxx03/__utility/swap.h> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| template <typename _Alloc> |
| _LIBCPP_HIDE_FROM_ABI void __swap_allocator(_Alloc& __a1, _Alloc& __a2, true_type) { |
| using std::swap; |
| swap(__a1, __a2); |
| } |
| |
| template <typename _Alloc> |
| inline _LIBCPP_HIDE_FROM_ABI void __swap_allocator(_Alloc&, _Alloc&, false_type) _NOEXCEPT {} |
| |
| template <typename _Alloc> |
| inline _LIBCPP_HIDE_FROM_ABI void __swap_allocator(_Alloc& __a1, _Alloc& __a2) { |
| std::__swap_allocator( |
| __a1, __a2, integral_constant<bool, allocator_traits<_Alloc>::propagate_on_container_swap::value>()); |
| } |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP___CXX03___MEMORY_SWAP_ALLOCATOR_H |
