xref: /freebsd/contrib/llvm-project/libcxx/include/__algorithm/ranges_includes.h (revision 1fd880742ace94e11fa60ee0b074f0b18e54c54f)
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_INCLUDES_H
10  #define _LIBCPP___ALGORITHM_RANGES_INCLUDES_H
11  
12  #include <__algorithm/includes.h>
13  #include <__algorithm/make_projected.h>
14  #include <__config>
15  #include <__functional/identity.h>
16  #include <__functional/invoke.h>
17  #include <__functional/ranges_operations.h>
18  #include <__iterator/concepts.h>
19  #include <__iterator/iterator_traits.h>
20  #include <__iterator/projected.h>
21  #include <__ranges/access.h>
22  #include <__ranges/concepts.h>
23  #include <__utility/forward.h>
24  #include <__utility/move.h>
25  
26  #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
27  #  pragma GCC system_header
28  #endif
29  
30  _LIBCPP_PUSH_MACROS
31  #include <__undef_macros>
32  
33  #if _LIBCPP_STD_VER >= 20
34  
35  _LIBCPP_BEGIN_NAMESPACE_STD
36  
37  namespace ranges {
38  namespace __includes {
39  
40  struct __fn {
41    template <input_iterator _Iter1,
42              sentinel_for<_Iter1> _Sent1,
43              input_iterator _Iter2,
44              sentinel_for<_Iter2> _Sent2,
45              class _Proj1                                                                           = identity,
46              class _Proj2                                                                           = identity,
47              indirect_strict_weak_order<projected<_Iter1, _Proj1>, projected<_Iter2, _Proj2>> _Comp = ranges::less>
48    _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr bool operator()(
49        _Iter1 __first1,
50        _Sent1 __last1,
51        _Iter2 __first2,
52        _Sent2 __last2,
53        _Comp __comp   = {},
54        _Proj1 __proj1 = {},
55        _Proj2 __proj2 = {}) const {
56      return std::__includes(
57          std::move(__first1),
58          std::move(__last1),
59          std::move(__first2),
60          std::move(__last2),
61          std::move(__comp),
62          std::move(__proj1),
63          std::move(__proj2));
64    }
65  
66    template <input_range _Range1,
67              input_range _Range2,
68              class _Proj1 = identity,
69              class _Proj2 = identity,
70              indirect_strict_weak_order<projected<iterator_t<_Range1>, _Proj1>, projected<iterator_t<_Range2>, _Proj2>>
71                  _Comp = ranges::less>
72    _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr bool operator()(
73        _Range1&& __range1, _Range2&& __range2, _Comp __comp = {}, _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const {
74      return std::__includes(
75          ranges::begin(__range1),
76          ranges::end(__range1),
77          ranges::begin(__range2),
78          ranges::end(__range2),
79          std::move(__comp),
80          std::move(__proj1),
81          std::move(__proj2));
82    }
83  };
84  
85  } // namespace __includes
86  
87  inline namespace __cpo {
88  inline constexpr auto includes = __includes::__fn{};
89  } // namespace __cpo
90  } // namespace ranges
91  
92  _LIBCPP_END_NAMESPACE_STD
93  
94  #endif // _LIBCPP_STD_VER >= 20
95  
96  _LIBCPP_POP_MACROS
97  
98  #endif // _LIBCPP___ALGORITHM_RANGES_INCLUDES_H
99