| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef _LIBCPP___ALGORITHM_RANGES_CONTAINS_H |
| #define _LIBCPP___ALGORITHM_RANGES_CONTAINS_H |
| |
| #include <__algorithm/ranges_find.h> |
| #include <__config> |
| #include <__functional/identity.h> |
| #include <__functional/ranges_operations.h> |
| #include <__functional/reference_wrapper.h> |
| #include <__iterator/concepts.h> |
| #include <__iterator/indirectly_comparable.h> |
| #include <__iterator/projected.h> |
| #include <__ranges/access.h> |
| #include <__ranges/concepts.h> |
| #include <__utility/move.h> |
| |
| #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) |
| # pragma GCC system_header |
| #endif |
| |
| _LIBCPP_PUSH_MACROS |
| #include <__undef_macros> |
| |
| #if _LIBCPP_STD_VER >= 23 |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| namespace ranges { |
| namespace __contains { |
| struct __fn { |
| template <input_iterator _Iter, sentinel_for<_Iter> _Sent, class _Type, class _Proj = identity> |
| requires indirect_binary_predicate<ranges::equal_to, projected<_Iter, _Proj>, const _Type*> |
| [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr bool static |
| operator()(_Iter __first, _Sent __last, const _Type& __value, _Proj __proj = {}) { |
| return ranges::find(std::move(__first), __last, __value, std::ref(__proj)) != __last; |
| } |
| |
| template <input_range _Range, class _Type, class _Proj = identity> |
| requires indirect_binary_predicate<ranges::equal_to, projected<iterator_t<_Range>, _Proj>, const _Type*> |
| [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr bool static |
| operator()(_Range&& __range, const _Type& __value, _Proj __proj = {}) { |
| return ranges::find(ranges::begin(__range), ranges::end(__range), __value, std::ref(__proj)) != |
| ranges::end(__range); |
| } |
| }; |
| } // namespace __contains |
| |
| inline namespace __cpo { |
| inline constexpr auto contains = __contains::__fn{}; |
| } // namespace __cpo |
| } // namespace ranges |
| |
| _LIBCPP_END_NAMESPACE_STD |
| |
| #endif // _LIBCPP_STD_VER >= 23 |
| |
| _LIBCPP_POP_MACROS |
| |
| #endif // _LIBCPP___ALGORITHM_RANGES_CONTAINS_H |