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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___ALGORITHM_ITER_SWAP_H10#define _LIBCPP___ALGORITHM_ITER_SWAP_H11 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_header18#endif19 20_LIBCPP_BEGIN_NAMESPACE_STD21 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_STD30 31#endif // _LIBCPP___ALGORITHM_ITER_SWAP_H32