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