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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-exception
6//
7//===----------------------------------------------------------------------===//
8
9#ifndef _LIBCPP___MEMORY_NOEXCEPT_MOVE_ASSIGN_CONTAINER_H
10#define _LIBCPP___MEMORY_NOEXCEPT_MOVE_ASSIGN_CONTAINER_H
11
12#include <__config>
13#include <__memory/allocator_traits.h>
14#include <__type_traits/integral_constant.h>
15#include <__type_traits/is_nothrow_assignable.h>
16
17#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
18# pragma GCC system_header
19#endif
20
21_LIBCPP_BEGIN_NAMESPACE_STD
22
23template <typename _Alloc, typename _Traits = allocator_traits<_Alloc> >
24struct __noexcept_move_assign_container
25 : public integral_constant<bool,
26 _Traits::propagate_on_container_move_assignment::value
27#if _LIBCPP_STD_VER >= 17
28 || _Traits::is_always_equal::value
29#else
30 && is_nothrow_move_assignable<_Alloc>::value
31#endif
32 > {
33};
34
35_LIBCPP_END_NAMESPACE_STD
36
37#endif // _LIBCPP___MEMORY_NOEXCEPT_MOVE_ASSIGN_CONTAINER_H
38

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source code of libcxx/include/__memory/noexcept_move_assign_container.h