181ad6265SDimitry Andric //===----------------------------------------------------------------------===// 281ad6265SDimitry Andric // 381ad6265SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 481ad6265SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 581ad6265SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 681ad6265SDimitry Andric // 781ad6265SDimitry Andric //===----------------------------------------------------------------------===// 881ad6265SDimitry Andric 981ad6265SDimitry Andric #ifndef _LIBCPP___ALGORITHM_RANGES_SWAP_RANGES_H 1081ad6265SDimitry Andric #define _LIBCPP___ALGORITHM_RANGES_SWAP_RANGES_H 1181ad6265SDimitry Andric 1281ad6265SDimitry Andric #include <__algorithm/in_in_result.h> 1361cfbce3SDimitry Andric #include <__algorithm/iterator_operations.h> 1461cfbce3SDimitry Andric #include <__algorithm/swap_ranges.h> 1581ad6265SDimitry Andric #include <__config> 1681ad6265SDimitry Andric #include <__iterator/concepts.h> 1781ad6265SDimitry Andric #include <__iterator/iter_swap.h> 1881ad6265SDimitry Andric #include <__ranges/access.h> 1981ad6265SDimitry Andric #include <__ranges/concepts.h> 2081ad6265SDimitry Andric #include <__ranges/dangling.h> 2181ad6265SDimitry Andric #include <__utility/move.h> 2281ad6265SDimitry Andric 2381ad6265SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 2481ad6265SDimitry Andric # pragma GCC system_header 2581ad6265SDimitry Andric #endif 2681ad6265SDimitry Andric 27*b3edf446SDimitry Andric _LIBCPP_PUSH_MACROS 28*b3edf446SDimitry Andric #include <__undef_macros> 29*b3edf446SDimitry Andric 3006c3fb27SDimitry Andric #if _LIBCPP_STD_VER >= 20 3181ad6265SDimitry Andric 3281ad6265SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 3381ad6265SDimitry Andric 3481ad6265SDimitry Andric namespace ranges { 3581ad6265SDimitry Andric 3681ad6265SDimitry Andric template <class _I1, class _I2> 3781ad6265SDimitry Andric using swap_ranges_result = in_in_result<_I1, _I2>; 3881ad6265SDimitry Andric 3981ad6265SDimitry Andric namespace __swap_ranges { 4081ad6265SDimitry Andric struct __fn { 4106c3fb27SDimitry Andric template <input_iterator _I1, sentinel_for<_I1> _S1, input_iterator _I2, sentinel_for<_I2> _S2> 4281ad6265SDimitry Andric requires indirectly_swappable<_I1, _I2> 4381ad6265SDimitry Andric _LIBCPP_HIDE_FROM_ABI constexpr swap_ranges_result<_I1, _I2> operator__fn4481ad6265SDimitry Andric operator()(_I1 __first1, _S1 __last1, _I2 __first2, _S2 __last2) const { 4561cfbce3SDimitry Andric auto __ret = std::__swap_ranges<_RangeAlgPolicy>( 4661cfbce3SDimitry Andric std::move(__first1), std::move(__last1), std::move(__first2), std::move(__last2)); 4761cfbce3SDimitry Andric return {std::move(__ret.first), std::move(__ret.second)}; 4881ad6265SDimitry Andric } 4981ad6265SDimitry Andric 5081ad6265SDimitry Andric template <input_range _R1, input_range _R2> 5181ad6265SDimitry Andric requires indirectly_swappable<iterator_t<_R1>, iterator_t<_R2>> 5206c3fb27SDimitry Andric _LIBCPP_HIDE_FROM_ABI constexpr swap_ranges_result<borrowed_iterator_t<_R1>, borrowed_iterator_t<_R2>> operator__fn5381ad6265SDimitry Andric operator()(_R1&& __r1, _R2&& __r2) const { 5406c3fb27SDimitry Andric return operator()(ranges::begin(__r1), ranges::end(__r1), ranges::begin(__r2), ranges::end(__r2)); 5581ad6265SDimitry Andric } 5681ad6265SDimitry Andric }; 5781ad6265SDimitry Andric } // namespace __swap_ranges 5881ad6265SDimitry Andric 5981ad6265SDimitry Andric inline namespace __cpo { 6081ad6265SDimitry Andric inline constexpr auto swap_ranges = __swap_ranges::__fn{}; 6181ad6265SDimitry Andric } // namespace __cpo 6281ad6265SDimitry Andric } // namespace ranges 6381ad6265SDimitry Andric 6481ad6265SDimitry Andric _LIBCPP_END_NAMESPACE_STD 6581ad6265SDimitry Andric 6606c3fb27SDimitry Andric #endif // _LIBCPP_STD_VER >= 20 6781ad6265SDimitry Andric 68*b3edf446SDimitry Andric _LIBCPP_POP_MACROS 69*b3edf446SDimitry Andric 7081ad6265SDimitry Andric #endif // _LIBCPP___ALGORITHM_RANGES_SWAP_RANGES_H 71