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
33namespace ranges {
34
35template <class _InIter, class _OutIter>
36using move_result = in_out_result<_InIter, _OutIter>;
37
38namespace __move {
39struct __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
63inline namespace __cpo {
64inline 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