1e78f53d1SNikolas Klauser //===----------------------------------------------------------------------===// 2e78f53d1SNikolas Klauser // 3e78f53d1SNikolas Klauser // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4e78f53d1SNikolas Klauser // See https://llvm.org/LICENSE.txt for license information. 5e78f53d1SNikolas Klauser // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6e78f53d1SNikolas Klauser // 7e78f53d1SNikolas Klauser //===----------------------------------------------------------------------===// 8e78f53d1SNikolas Klauser 9*ce777190SNikolas Klauser #ifndef _LIBCPP___CXX03___ALGORITHM_RANGES_CONTAINS_H 10*ce777190SNikolas Klauser #define _LIBCPP___CXX03___ALGORITHM_RANGES_CONTAINS_H 11e78f53d1SNikolas Klauser 1273fbae83SNikolas Klauser #include <__cxx03/__algorithm/ranges_find.h> 1373fbae83SNikolas Klauser #include <__cxx03/__config> 1473fbae83SNikolas Klauser #include <__cxx03/__functional/identity.h> 1573fbae83SNikolas Klauser #include <__cxx03/__functional/ranges_operations.h> 1673fbae83SNikolas Klauser #include <__cxx03/__functional/reference_wrapper.h> 1773fbae83SNikolas Klauser #include <__cxx03/__iterator/concepts.h> 1873fbae83SNikolas Klauser #include <__cxx03/__iterator/indirectly_comparable.h> 1973fbae83SNikolas Klauser #include <__cxx03/__iterator/projected.h> 2073fbae83SNikolas Klauser #include <__cxx03/__ranges/access.h> 2173fbae83SNikolas Klauser #include <__cxx03/__ranges/concepts.h> 2273fbae83SNikolas Klauser #include <__cxx03/__utility/move.h> 23e78f53d1SNikolas Klauser 24e78f53d1SNikolas Klauser #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 25e78f53d1SNikolas Klauser # pragma GCC system_header 26e78f53d1SNikolas Klauser #endif 27e78f53d1SNikolas Klauser 28e78f53d1SNikolas Klauser _LIBCPP_PUSH_MACROS 2973fbae83SNikolas Klauser #include <__cxx03/__undef_macros> 30e78f53d1SNikolas Klauser 31e78f53d1SNikolas Klauser #if _LIBCPP_STD_VER >= 23 32e78f53d1SNikolas Klauser 33e78f53d1SNikolas Klauser _LIBCPP_BEGIN_NAMESPACE_STD 34e78f53d1SNikolas Klauser 35e78f53d1SNikolas Klauser namespace ranges { 36e78f53d1SNikolas Klauser namespace __contains { 37e78f53d1SNikolas Klauser struct __fn { 38e78f53d1SNikolas Klauser template <input_iterator _Iter, sentinel_for<_Iter> _Sent, class _Type, class _Proj = identity> 39e78f53d1SNikolas Klauser requires indirect_binary_predicate<ranges::equal_to, projected<_Iter, _Proj>, const _Type*> 40e78f53d1SNikolas Klauser [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr bool static 41e78f53d1SNikolas Klauser operator()(_Iter __first, _Sent __last, const _Type& __value, _Proj __proj = {}) { 42e78f53d1SNikolas Klauser return ranges::find(std::move(__first), __last, __value, std::ref(__proj)) != __last; 43e78f53d1SNikolas Klauser } 44e78f53d1SNikolas Klauser 45e78f53d1SNikolas Klauser template <input_range _Range, class _Type, class _Proj = identity> 46e78f53d1SNikolas Klauser requires indirect_binary_predicate<ranges::equal_to, projected<iterator_t<_Range>, _Proj>, const _Type*> 47e78f53d1SNikolas Klauser [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr bool static 48e78f53d1SNikolas Klauser operator()(_Range&& __range, const _Type& __value, _Proj __proj = {}) { 49e78f53d1SNikolas Klauser return ranges::find(ranges::begin(__range), ranges::end(__range), __value, std::ref(__proj)) != 50e78f53d1SNikolas Klauser ranges::end(__range); 51e78f53d1SNikolas Klauser } 52e78f53d1SNikolas Klauser }; 53e78f53d1SNikolas Klauser } // namespace __contains 54e78f53d1SNikolas Klauser 55e78f53d1SNikolas Klauser inline namespace __cpo { 56e78f53d1SNikolas Klauser inline constexpr auto contains = __contains::__fn{}; 57e78f53d1SNikolas Klauser } // namespace __cpo 58e78f53d1SNikolas Klauser } // namespace ranges 59e78f53d1SNikolas Klauser 60e78f53d1SNikolas Klauser _LIBCPP_END_NAMESPACE_STD 61e78f53d1SNikolas Klauser 62e78f53d1SNikolas Klauser #endif // _LIBCPP_STD_VER >= 23 63e78f53d1SNikolas Klauser 64e78f53d1SNikolas Klauser _LIBCPP_POP_MACROS 65e78f53d1SNikolas Klauser 66*ce777190SNikolas Klauser #endif // _LIBCPP___CXX03___ALGORITHM_RANGES_CONTAINS_H 67