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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 #ifndef _LIBCPP___ALGORITHM_RANGES_MOVE_H 10 #define _LIBCPP___ALGORITHM_RANGES_MOVE_H 11 12 #include <__algorithm/in_out_result.h> 13 #include <__algorithm/iterator_operations.h> 14 #include <__algorithm/move.h> 15 #include <__config> 16 #include <__iterator/concepts.h> 17 #include <__ranges/access.h> 18 #include <__ranges/concepts.h> 19 #include <__ranges/dangling.h> 20 #include <__utility/move.h> 21 22 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 23 # pragma GCC system_header 24 #endif 25 26 #if _LIBCPP_STD_VER >= 20 27 28 _LIBCPP_BEGIN_NAMESPACE_STD 29 30 namespace ranges { 31 32 template <class _InIter, class _OutIter> 33 using move_result = in_out_result<_InIter, _OutIter>; 34 35 namespace __move { 36 struct __fn { 37 template <class _InIter, class _Sent, class _OutIter> 38 _LIBCPP_HIDE_FROM_ABI constexpr static move_result<_InIter, _OutIter> 39 __move_impl(_InIter __first, _Sent __last, _OutIter __result) { 40 auto __ret = std::__move<_RangeAlgPolicy>(std::move(__first), std::move(__last), std::move(__result)); 41 return {std::move(__ret.first), std::move(__ret.second)}; 42 } 43 44 template <input_iterator _InIter, sentinel_for<_InIter> _Sent, weakly_incrementable _OutIter> 45 requires indirectly_movable<_InIter, _OutIter> 46 _LIBCPP_HIDE_FROM_ABI constexpr move_result<_InIter, _OutIter> 47 operator()(_InIter __first, _Sent __last, _OutIter __result) const { 48 return __move_impl(std::move(__first), std::move(__last), std::move(__result)); 49 } 50 51 template <input_range _Range, weakly_incrementable _OutIter> 52 requires indirectly_movable<iterator_t<_Range>, _OutIter> 53 _LIBCPP_HIDE_FROM_ABI constexpr move_result<borrowed_iterator_t<_Range>, _OutIter> 54 operator()(_Range&& __range, _OutIter __result) const { 55 return __move_impl(ranges::begin(__range), ranges::end(__range), std::move(__result)); 56 } 57 }; 58 } // namespace __move 59 60 inline namespace __cpo { 61 inline constexpr auto move = __move::__fn{}; 62 } // namespace __cpo 63 } // namespace ranges 64 65 _LIBCPP_END_NAMESPACE_STD 66 67 #endif // _LIBCPP_STD_VER >= 20 68 69 #endif // _LIBCPP___ALGORITHM_RANGES_MOVE_H 70