| //===----------------------------------------------------------------------===// |
| // |
| // 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___MEMORY_SWAP_ALLOCATOR_H |
| #define _LIBCPP___MEMORY_SWAP_ALLOCATOR_H |
| |
| #include <__config> |
| #include <__memory/allocator_traits.h> |
| #include <__type_traits/integral_constant.h> |
| #include <__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 _LIBCPP_CONSTEXPR_SINCE_CXX14 void __swap_allocator(_Alloc& __a1, _Alloc& __a2, true_type) |
| #if _LIBCPP_STD_VER > 11 |
| _NOEXCEPT |
| #else |
| _NOEXCEPT_(__is_nothrow_swappable<_Alloc>::value) |
| #endif |
| { |
| using _VSTD::swap; |
| swap(__a1, __a2); |
| } |
| |
| template <typename _Alloc> |
| inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 void |
| __swap_allocator(_Alloc&, _Alloc&, false_type) _NOEXCEPT {} |
| |
| template <typename _Alloc> |
| inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX14 void __swap_allocator(_Alloc& __a1, _Alloc& __a2) |
| #if _LIBCPP_STD_VER > 11 |
| _NOEXCEPT |
| #else |
| _NOEXCEPT_(__is_nothrow_swappable<_Alloc>::value) |
| #endif |
| { |
| _VSTD::__swap_allocator( |
| __a1, __a2, integral_constant<bool, allocator_traits<_Alloc>::propagate_on_container_swap::value>()); |
| } |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP___MEMORY_SWAP_ALLOCATOR_H |
