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 _LIBCPP_PUSH_MACROS 27 #include <__undef_macros> 28 29 #if _LIBCPP_STD_VER >= 20 30 31 _LIBCPP_BEGIN_NAMESPACE_STD 32 33 namespace ranges { 34 35 template <class _InIter, class _OutIter> 36 using move_result = in_out_result<_InIter, _OutIter>; 37 38 namespace __move { 39 struct __fn { 40 template <class _InIter, class _Sent, class _OutIter> 41 _LIBCPP_HIDE_FROM_ABI constexpr static move_result<_InIter, _OutIter> 42 __move_impl(_InIter __first, _Sent __last, _OutIter __result) { 43 auto __ret = std::__move<_RangeAlgPolicy>(std::move(__first), std::move(__last), std::move(__result)); 44 return {std::move(__ret.first), std::move(__ret.second)}; 45 } 46 47 template <input_iterator _InIter, sentinel_for<_InIter> _Sent, weakly_incrementable _OutIter> 48 requires indirectly_movable<_InIter, _OutIter> 49 _LIBCPP_HIDE_FROM_ABI constexpr move_result<_InIter, _OutIter> 50 operator()(_InIter __first, _Sent __last, _OutIter __result) const { 51 return __move_impl(std::move(__first), std::move(__last), std::move(__result)); 52 } 53 54 template <input_range _Range, weakly_incrementable _OutIter> 55 requires indirectly_movable<iterator_t<_Range>, _OutIter> 56 _LIBCPP_HIDE_FROM_ABI constexpr move_result<borrowed_iterator_t<_Range>, _OutIter> 57 operator()(_Range&& __range, _OutIter __result) const { 58 return __move_impl(ranges::begin(__range), ranges::end(__range), std::move(__result)); 59 } 60 }; 61 } // namespace __move 62 63 inline namespace __cpo { 64 inline constexpr auto move = __move::__fn{}; 65 } // namespace __cpo 66 } // namespace ranges 67 68 _LIBCPP_END_NAMESPACE_STD 69 70 #endif // _LIBCPP_STD_VER >= 20 71 72 _LIBCPP_POP_MACROS 73 74 #endif // _LIBCPP___ALGORITHM_RANGES_MOVE_H 75