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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_RANGES_SWAP_RANGES_H10#define _LIBCPP___ALGORITHM_RANGES_SWAP_RANGES_H11 12#include <__algorithm/in_in_result.h>13#include <__algorithm/iterator_operations.h>14#include <__algorithm/swap_ranges.h>15#include <__config>16#include <__iterator/concepts.h>17#include <__iterator/iter_swap.h>18#include <__ranges/access.h>19#include <__ranges/concepts.h>20#include <__ranges/dangling.h>21#include <__utility/move.h>22 23#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)24# pragma GCC system_header25#endif26 27_LIBCPP_PUSH_MACROS28#include <__undef_macros>29 30#if _LIBCPP_STD_VER >= 2031 32_LIBCPP_BEGIN_NAMESPACE_STD33 34namespace ranges {35 36template <class _I1, class _I2>37using swap_ranges_result = in_in_result<_I1, _I2>;38 39struct __swap_ranges {40 template <input_iterator _I1, sentinel_for<_I1> _S1, input_iterator _I2, sentinel_for<_I2> _S2>41 requires indirectly_swappable<_I1, _I2>42 _LIBCPP_HIDE_FROM_ABI constexpr swap_ranges_result<_I1, _I2>43 operator()(_I1 __first1, _S1 __last1, _I2 __first2, _S2 __last2) const {44 auto __ret = std::__swap_ranges<_RangeAlgPolicy>(45 std::move(__first1), std::move(__last1), std::move(__first2), std::move(__last2));46 return {std::move(__ret.first), std::move(__ret.second)};47 }48 49 template <input_range _R1, input_range _R2>50 requires indirectly_swappable<iterator_t<_R1>, iterator_t<_R2>>51 _LIBCPP_HIDE_FROM_ABI constexpr swap_ranges_result<borrowed_iterator_t<_R1>, borrowed_iterator_t<_R2>>52 operator()(_R1&& __r1, _R2&& __r2) const {53 return operator()(ranges::begin(__r1), ranges::end(__r1), ranges::begin(__r2), ranges::end(__r2));54 }55};56 57inline namespace __cpo {58inline constexpr auto swap_ranges = __swap_ranges{};59} // namespace __cpo60} // namespace ranges61 62_LIBCPP_END_NAMESPACE_STD63 64#endif // _LIBCPP_STD_VER >= 2065 66_LIBCPP_POP_MACROS67 68#endif // _LIBCPP___ALGORITHM_RANGES_SWAP_RANGES_H69