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___ALGORITHM_ITER_SWAP_H
10#define _LIBCPP___ALGORITHM_ITER_SWAP_H
11
12#include <__config>
13#include <__utility/declval.h>
14#include <__utility/swap.h>
15
16#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
17# pragma GCC system_header
18#endif
19
20_LIBCPP_BEGIN_NAMESPACE_STD
21
22template <class _ForwardIterator1, class _ForwardIterator2>
23inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 void iter_swap(_ForwardIterator1 __a, _ForwardIterator2 __b)
24 // _NOEXCEPT_(_NOEXCEPT_(swap(*__a, *__b)))
25 _NOEXCEPT_(_NOEXCEPT_(swap(*std::declval<_ForwardIterator1>(), *std::declval<_ForwardIterator2>()))) {
26 swap(*__a, *__b);
27}
28
29_LIBCPP_END_NAMESPACE_STD
30
31#endif // _LIBCPP___ALGORITHM_ITER_SWAP_H
32