1*4bdff4beSrobert //===----------------------------------------------------------------------===// 2*4bdff4beSrobert // 3*4bdff4beSrobert // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*4bdff4beSrobert // See https://llvm.org/LICENSE.txt for license information. 5*4bdff4beSrobert // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*4bdff4beSrobert // 7*4bdff4beSrobert //===----------------------------------------------------------------------===// 8*4bdff4beSrobert 9*4bdff4beSrobert #ifndef _LIBCPP___ALGORITHM_RANGES_SWAP_RANGES_H 10*4bdff4beSrobert #define _LIBCPP___ALGORITHM_RANGES_SWAP_RANGES_H 11*4bdff4beSrobert 12*4bdff4beSrobert #include <__algorithm/in_in_result.h> 13*4bdff4beSrobert #include <__algorithm/iterator_operations.h> 14*4bdff4beSrobert #include <__algorithm/swap_ranges.h> 15*4bdff4beSrobert #include <__config> 16*4bdff4beSrobert #include <__iterator/concepts.h> 17*4bdff4beSrobert #include <__iterator/iter_swap.h> 18*4bdff4beSrobert #include <__ranges/access.h> 19*4bdff4beSrobert #include <__ranges/concepts.h> 20*4bdff4beSrobert #include <__ranges/dangling.h> 21*4bdff4beSrobert #include <__utility/move.h> 22*4bdff4beSrobert 23*4bdff4beSrobert #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 24*4bdff4beSrobert # pragma GCC system_header 25*4bdff4beSrobert #endif 26*4bdff4beSrobert 27*4bdff4beSrobert #if _LIBCPP_STD_VER > 17 28*4bdff4beSrobert 29*4bdff4beSrobert _LIBCPP_BEGIN_NAMESPACE_STD 30*4bdff4beSrobert 31*4bdff4beSrobert namespace ranges { 32*4bdff4beSrobert 33*4bdff4beSrobert template <class _I1, class _I2> 34*4bdff4beSrobert using swap_ranges_result = in_in_result<_I1, _I2>; 35*4bdff4beSrobert 36*4bdff4beSrobert namespace __swap_ranges { 37*4bdff4beSrobert struct __fn { 38*4bdff4beSrobert template <input_iterator _I1, sentinel_for<_I1> _S1, 39*4bdff4beSrobert input_iterator _I2, sentinel_for<_I2> _S2> 40*4bdff4beSrobert requires indirectly_swappable<_I1, _I2> 41*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI constexpr swap_ranges_result<_I1, _I2> operator__fn42*4bdff4beSrobert operator()(_I1 __first1, _S1 __last1, _I2 __first2, _S2 __last2) const { 43*4bdff4beSrobert auto __ret = std::__swap_ranges<_RangeAlgPolicy>( 44*4bdff4beSrobert std::move(__first1), std::move(__last1), std::move(__first2), std::move(__last2)); 45*4bdff4beSrobert return {std::move(__ret.first), std::move(__ret.second)}; 46*4bdff4beSrobert } 47*4bdff4beSrobert 48*4bdff4beSrobert template <input_range _R1, input_range _R2> 49*4bdff4beSrobert requires indirectly_swappable<iterator_t<_R1>, iterator_t<_R2>> 50*4bdff4beSrobert _LIBCPP_HIDE_FROM_ABI constexpr 51*4bdff4beSrobert swap_ranges_result<borrowed_iterator_t<_R1>, borrowed_iterator_t<_R2>> operator__fn52*4bdff4beSrobert operator()(_R1&& __r1, _R2&& __r2) const { 53*4bdff4beSrobert return operator()(ranges::begin(__r1), ranges::end(__r1), 54*4bdff4beSrobert ranges::begin(__r2), ranges::end(__r2)); 55*4bdff4beSrobert } 56*4bdff4beSrobert }; 57*4bdff4beSrobert } // namespace __swap_ranges 58*4bdff4beSrobert 59*4bdff4beSrobert inline namespace __cpo { 60*4bdff4beSrobert inline constexpr auto swap_ranges = __swap_ranges::__fn{}; 61*4bdff4beSrobert } // namespace __cpo 62*4bdff4beSrobert } // namespace ranges 63*4bdff4beSrobert 64*4bdff4beSrobert _LIBCPP_END_NAMESPACE_STD 65*4bdff4beSrobert 66*4bdff4beSrobert #endif // _LIBCPP_STD_VER > 17 67*4bdff4beSrobert 68*4bdff4beSrobert #endif // _LIBCPP___ALGORITHM_RANGES_SWAP_RANGES_H 69