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_SORT_H
10#define _LIBCPP___ALGORITHM_RANGES_SORT_H
11
12#include <__algorithm/iterator_operations.h>
13#include <__algorithm/make_projected.h>
14#include <__algorithm/sort.h>
15#include <__config>
16#include <__functional/identity.h>
17#include <__functional/invoke.h>
18#include <__functional/ranges_operations.h>
19#include <__iterator/concepts.h>
20#include <__iterator/iterator_traits.h>
21#include <__iterator/next.h>
22#include <__iterator/projected.h>
23#include <__iterator/sortable.h>
24#include <__ranges/access.h>
25#include <__ranges/concepts.h>
26#include <__ranges/dangling.h>
27#include <__utility/forward.h>
28#include <__utility/move.h>
29
30#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
31#  pragma GCC system_header
32#endif
33
34_LIBCPP_PUSH_MACROS
35#include <__undef_macros>
36
37#if _LIBCPP_STD_VER >= 20
38
39_LIBCPP_BEGIN_NAMESPACE_STD
40
41namespace ranges {
42struct __sort {
43  template <class _Iter, class _Sent, class _Comp, class _Proj>
44  _LIBCPP_HIDE_FROM_ABI constexpr static _Iter
45  __sort_fn_impl(_Iter __first, _Sent __last, _Comp& __comp, _Proj& __proj) {
46    auto __last_iter = ranges::next(__first, __last);
47
48    auto&& __projected_comp = std::__make_projected(__comp, __proj);
49    std::__sort_impl<_RangeAlgPolicy>(std::move(__first), __last_iter, __projected_comp);
50
51    return __last_iter;
52  }
53
54  template <random_access_iterator _Iter, sentinel_for<_Iter> _Sent, class _Comp = ranges::less, class _Proj = identity>
55    requires sortable<_Iter, _Comp, _Proj>
56  _LIBCPP_HIDE_FROM_ABI constexpr _Iter
57  operator()(_Iter __first, _Sent __last, _Comp __comp = {}, _Proj __proj = {}) const {
58    return __sort_fn_impl(std::move(__first), std::move(__last), __comp, __proj);
59  }
60
61  template <random_access_range _Range, class _Comp = ranges::less, class _Proj = identity>
62    requires sortable<iterator_t<_Range>, _Comp, _Proj>
63  _LIBCPP_HIDE_FROM_ABI constexpr borrowed_iterator_t<_Range>
64  operator()(_Range&& __r, _Comp __comp = {}, _Proj __proj = {}) const {
65    return __sort_fn_impl(ranges::begin(__r), ranges::end(__r), __comp, __proj);
66  }
67};
68
69inline namespace __cpo {
70inline constexpr auto sort = __sort{};
71} // namespace __cpo
72} // namespace ranges
73
74_LIBCPP_END_NAMESPACE_STD
75
76#endif // _LIBCPP_STD_VER >= 20
77
78_LIBCPP_POP_MACROS
79
80#endif // _LIBCPP___ALGORITHM_RANGES_SORT_H