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_MOVE_BACKWARD_H 1081ad6265SDimitry Andric #define _LIBCPP___ALGORITHM_RANGES_MOVE_BACKWARD_H 1181ad6265SDimitry Andric 1281ad6265SDimitry Andric #include <__algorithm/in_out_result.h> 13bdd1243dSDimitry Andric #include <__algorithm/iterator_operations.h> 14bdd1243dSDimitry Andric #include <__algorithm/move_backward.h> 1581ad6265SDimitry Andric #include <__config> 1681ad6265SDimitry Andric #include <__iterator/concepts.h> 1781ad6265SDimitry Andric #include <__iterator/iter_move.h> 1881ad6265SDimitry Andric #include <__iterator/next.h> 1981ad6265SDimitry Andric #include <__ranges/access.h> 2081ad6265SDimitry Andric #include <__ranges/concepts.h> 2181ad6265SDimitry Andric #include <__ranges/dangling.h> 2281ad6265SDimitry Andric #include <__utility/move.h> 2381ad6265SDimitry Andric 2481ad6265SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 2581ad6265SDimitry Andric # pragma GCC system_header 2681ad6265SDimitry Andric #endif 2781ad6265SDimitry Andric 28*b3edf446SDimitry Andric _LIBCPP_PUSH_MACROS 29*b3edf446SDimitry Andric #include <__undef_macros> 30*b3edf446SDimitry Andric 3106c3fb27SDimitry Andric #if _LIBCPP_STD_VER >= 20 3281ad6265SDimitry Andric 3381ad6265SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 3481ad6265SDimitry Andric 3581ad6265SDimitry Andric namespace ranges { 3681ad6265SDimitry Andric 3781ad6265SDimitry Andric template <class _InIter, class _OutIter> 3881ad6265SDimitry Andric using move_backward_result = in_out_result<_InIter, _OutIter>; 3981ad6265SDimitry Andric 4081ad6265SDimitry Andric namespace __move_backward { 4181ad6265SDimitry Andric struct __fn { 4281ad6265SDimitry Andric template <class _InIter, class _Sent, class _OutIter> 4306c3fb27SDimitry Andric _LIBCPP_HIDE_FROM_ABI constexpr static move_backward_result<_InIter, _OutIter> __move_backward_impl__fn4406c3fb27SDimitry Andric __move_backward_impl(_InIter __first, _Sent __last, _OutIter __result) { 45bdd1243dSDimitry Andric auto __ret = std::__move_backward<_RangeAlgPolicy>(std::move(__first), std::move(__last), std::move(__result)); 46bdd1243dSDimitry Andric return {std::move(__ret.first), std::move(__ret.second)}; 4781ad6265SDimitry Andric } 4881ad6265SDimitry Andric 4981ad6265SDimitry Andric template <bidirectional_iterator _InIter, sentinel_for<_InIter> _Sent, bidirectional_iterator _OutIter> 5081ad6265SDimitry Andric requires indirectly_movable<_InIter, _OutIter> 5106c3fb27SDimitry Andric _LIBCPP_HIDE_FROM_ABI constexpr move_backward_result<_InIter, _OutIter> operator__fn5206c3fb27SDimitry Andric operator()(_InIter __first, _Sent __last, _OutIter __result) const { 5381ad6265SDimitry Andric return __move_backward_impl(std::move(__first), std::move(__last), std::move(__result)); 5481ad6265SDimitry Andric } 5581ad6265SDimitry Andric 5681ad6265SDimitry Andric template <bidirectional_range _Range, bidirectional_iterator _Iter> 5781ad6265SDimitry Andric requires indirectly_movable<iterator_t<_Range>, _Iter> 5806c3fb27SDimitry Andric _LIBCPP_HIDE_FROM_ABI constexpr move_backward_result<borrowed_iterator_t<_Range>, _Iter> operator__fn5906c3fb27SDimitry Andric operator()(_Range&& __range, _Iter __result) const { 6081ad6265SDimitry Andric return __move_backward_impl(ranges::begin(__range), ranges::end(__range), std::move(__result)); 6181ad6265SDimitry Andric } 6281ad6265SDimitry Andric }; 6381ad6265SDimitry Andric } // namespace __move_backward 6481ad6265SDimitry Andric 6581ad6265SDimitry Andric inline namespace __cpo { 6681ad6265SDimitry Andric inline constexpr auto move_backward = __move_backward::__fn{}; 6781ad6265SDimitry Andric } // namespace __cpo 6881ad6265SDimitry Andric } // namespace ranges 6981ad6265SDimitry Andric 7081ad6265SDimitry Andric _LIBCPP_END_NAMESPACE_STD 7181ad6265SDimitry Andric 7206c3fb27SDimitry Andric #endif // _LIBCPP_STD_VER >= 20 7381ad6265SDimitry Andric 74*b3edf446SDimitry Andric _LIBCPP_POP_MACROS 75*b3edf446SDimitry Andric 7681ad6265SDimitry Andric #endif // _LIBCPP___ALGORITHM_RANGES_MOVE_BACKWARD_H 77