__cxx03/__algorithm/ranges_includes.h

0001 //===----------------------------------------------------------------------===//
0002 //
0003 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
0004 // See https://llvm.org/LICENSE.txt for license information.
0005 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
0006 //
0007 //===----------------------------------------------------------------------===//
0008
0009 #ifndef _LIBCPP___CXX03___ALGORITHM_RANGES_INCLUDES_H
0010 #define _LIBCPP___CXX03___ALGORITHM_RANGES_INCLUDES_H
0011
0012 #include <__cxx03/__algorithm/includes.h>
0013 #include <__cxx03/__algorithm/make_projected.h>
0014 #include <__cxx03/__config>
0015 #include <__cxx03/__functional/identity.h>
0016 #include <__cxx03/__functional/invoke.h>
0017 #include <__cxx03/__functional/ranges_operations.h>
0018 #include <__cxx03/__iterator/concepts.h>
0019 #include <__cxx03/__iterator/iterator_traits.h>
0020 #include <__cxx03/__iterator/projected.h>
0021 #include <__cxx03/__ranges/access.h>
0022 #include <__cxx03/__ranges/concepts.h>
0023 #include <__cxx03/__utility/forward.h>
0024 #include <__cxx03/__utility/move.h>
0025
0026 #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
0027 #  pragma GCC system_header
0028 #endif
0029
0030 _LIBCPP_PUSH_MACROS
0031 #include <__cxx03/__undef_macros>
0032
0033 #if _LIBCPP_STD_VER >= 20
0034
0035 _LIBCPP_BEGIN_NAMESPACE_STD
0036
0037 namespace ranges {
0038 namespace __includes {
0039
0040 struct __fn {
0041   template <input_iterator _Iter1,
0042             sentinel_for<_Iter1> _Sent1,
0043             input_iterator _Iter2,
0044             sentinel_for<_Iter2> _Sent2,
0045             class _Proj1                                                                           = identity,
0046             class _Proj2                                                                           = identity,
0047             indirect_strict_weak_order<projected<_Iter1, _Proj1>, projected<_Iter2, _Proj2>> _Comp = ranges::less>
0048   [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr bool operator()(
0049       _Iter1 __first1,
0050       _Sent1 __last1,
0051       _Iter2 __first2,
0052       _Sent2 __last2,
0053       _Comp __comp   = {},
0054       _Proj1 __proj1 = {},
0055       _Proj2 __proj2 = {}) const {
0056     return std::__includes(
0057         std::move(__first1),
0058         std::move(__last1),
0059         std::move(__first2),
0060         std::move(__last2),
0061         std::move(__comp),
0062         std::move(__proj1),
0063         std::move(__proj2));
0064   }
0065
0066   template <input_range _Range1,
0067             input_range _Range2,
0068             class _Proj1 = identity,
0069             class _Proj2 = identity,
0070             indirect_strict_weak_order<projected<iterator_t<_Range1>, _Proj1>, projected<iterator_t<_Range2>, _Proj2>>
0071                 _Comp = ranges::less>
0072   [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr bool operator()(
0073       _Range1&& __range1, _Range2&& __range2, _Comp __comp = {}, _Proj1 __proj1 = {}, _Proj2 __proj2 = {}) const {
0074     return std::__includes(
0075         ranges::begin(__range1),
0076         ranges::end(__range1),
0077         ranges::begin(__range2),
0078         ranges::end(__range2),
0079         std::move(__comp),
0080         std::move(__proj1),
0081         std::move(__proj2));
0082   }
0083 };
0084
0085 } // namespace __includes
0086
0087 inline namespace __cpo {
0088 inline constexpr auto includes = __includes::__fn{};
0089 } // namespace __cpo
0090 } // namespace ranges
0091
0092 _LIBCPP_END_NAMESPACE_STD
0093
0094 #endif // _LIBCPP_STD_VER >= 20
0095
0096 _LIBCPP_POP_MACROS
0097
0098 #endif // _LIBCPP___CXX03___ALGORITHM_RANGES_INCLUDES_H