libcxx/include/__algorithm/ranges_includes.h

   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 #if _LIBCPP_STD_VER >= 20
  31
  32 _LIBCPP_BEGIN_NAMESPACE_STD
  33
  34 namespace ranges {
  35 namespace __includes {
  36
  37 struct __fn {
  38   template <input_iterator _Iter1,
  39             sentinel_for<_Iter1> _Sent1,
  40             input_iterator _Iter2,
  41             sentinel_for<_Iter2> _Sent2,
  42             class _Proj1                                                                           = identity,
  43             class _Proj2                                                                           = identity,
  44             indirect_strict_weak_order<projected<_Iter1, _Proj1>, projected<_Iter2, _Proj2>> _Comp = ranges::less>
  45   _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr bool operator()(
  46       _Iter1 __first1,
  47       _Sent1 __last1,
  48       _Iter2 __first2,
  49       _Sent2 __last2,
  50       _Comp __comp   = {},
  51       _Proj1 __proj1 = {},
  52       _Proj2 __proj2 = {}) const {
  53     return std::__includes(
  54         std::move(__first1),
  55         std::move(__last1),
  56         std::move(__first2),
  57         std::move(__last2),
  58         std::move(__comp),
  59         std::move(__proj1),
  60         std::move(__proj2));
  61   }
  62
  63   template <input_range _Range1,
  64             input_range _Range2,
  65             class _Proj1 = identity,
  66             class _Proj2 = identity,
  67             indirect_strict_weak_order<projected<iterator_t<_Range1>, _Proj1>, projected<iterator_t<_Range2>, _Proj2>>
  68                 _Comp = ranges::less>
  69   _LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI constexpr bool operator()(
  70       _Range1&& __range1, _Range2&& __range2, _Comp __comp = {}, _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const {
  71     return std::__includes(
  72         ranges::begin(__range1),
  73         ranges::end(__range1),
  74         ranges::begin(__range2),
  75         ranges::end(__range2),
  76         std::move(__comp),
  77         std::move(__proj1),
  78         std::move(__proj2));
  79   }
  80 };
  81
  82 } // namespace __includes
  83
  84 inline namespace __cpo {
  85 inline constexpr auto includes = __includes::__fn{};
  86 } // namespace __cpo
  87 } // namespace ranges
  88
  89 _LIBCPP_END_NAMESPACE_STD
  90
  91 #endif // _LIBCPP_STD_VER >= 20
  92
  93 #endif // _LIBCPP___ALGORITHM_RANGES_INCLUDES_H