xref: /llvm-project/libcxx/include/__algorithm/ranges_lower_bound.h (revision d10dc5a06fac4dcabf2264c64c8672c6f6ae36fb)
181715861SNikolas Klauser //===----------------------------------------------------------------------===//
281715861SNikolas Klauser //
381715861SNikolas Klauser // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
481715861SNikolas Klauser // See https://llvm.org/LICENSE.txt for license information.
581715861SNikolas Klauser // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
681715861SNikolas Klauser //
781715861SNikolas Klauser //===----------------------------------------------------------------------===//
881715861SNikolas Klauser 
981715861SNikolas Klauser #ifndef _LIBCPP___ALGORITHM_RANGES_LOWER_BOUND_H
1081715861SNikolas Klauser #define _LIBCPP___ALGORITHM_RANGES_LOWER_BOUND_H
1181715861SNikolas Klauser 
12988682a3SNikolas Klauser #include <__algorithm/iterator_operations.h>
1381715861SNikolas Klauser #include <__algorithm/lower_bound.h>
1481715861SNikolas Klauser #include <__config>
1581715861SNikolas Klauser #include <__functional/identity.h>
1681715861SNikolas Klauser #include <__functional/invoke.h>
1781715861SNikolas Klauser #include <__functional/ranges_operations.h>
1881715861SNikolas Klauser #include <__iterator/advance.h>
1981715861SNikolas Klauser #include <__iterator/concepts.h>
2081715861SNikolas Klauser #include <__iterator/iterator_traits.h>
2181715861SNikolas Klauser #include <__iterator/projected.h>
2281715861SNikolas Klauser #include <__ranges/access.h>
2381715861SNikolas Klauser #include <__ranges/concepts.h>
2481715861SNikolas Klauser #include <__ranges/dangling.h>
2581715861SNikolas Klauser 
2681715861SNikolas Klauser #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
2781715861SNikolas Klauser #  pragma GCC system_header
2881715861SNikolas Klauser #endif
2981715861SNikolas Klauser 
307b462251SLouis Dionne _LIBCPP_PUSH_MACROS
317b462251SLouis Dionne #include <__undef_macros>
327b462251SLouis Dionne 
334f15267dSNikolas Klauser #if _LIBCPP_STD_VER >= 20
3481715861SNikolas Klauser 
3581715861SNikolas Klauser _LIBCPP_BEGIN_NAMESPACE_STD
3681715861SNikolas Klauser 
3781715861SNikolas Klauser namespace ranges {
3881715861SNikolas Klauser 
39*d10dc5a0SChristopher Di Bella struct __lower_bound {
405aa03b64SLouis Dionne   template <forward_iterator _Iter,
415aa03b64SLouis Dionne             sentinel_for<_Iter> _Sent,
425aa03b64SLouis Dionne             class _Type,
435aa03b64SLouis Dionne             class _Proj                                                             = identity,
4481715861SNikolas Klauser             indirect_strict_weak_order<const _Type*, projected<_Iter, _Proj>> _Comp = ranges::less>
4583bc7b57SNikolas Klauser   [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr _Iter
465aa03b64SLouis Dionne   operator()(_Iter __first, _Sent __last, const _Type& __value, _Comp __comp = {}, _Proj __proj = {}) const {
47d8655fb3SLouis Dionne     return std::__lower_bound<_RangeAlgPolicy>(__first, __last, __value, __comp, __proj);
4881715861SNikolas Klauser   }
4981715861SNikolas Klauser 
505aa03b64SLouis Dionne   template <forward_range _Range,
515aa03b64SLouis Dionne             class _Type,
525aa03b64SLouis Dionne             class _Proj                                                                          = identity,
5381715861SNikolas Klauser             indirect_strict_weak_order<const _Type*, projected<iterator_t<_Range>, _Proj>> _Comp = ranges::less>
5483bc7b57SNikolas Klauser   [[nodiscard]] _LIBCPP_HIDE_FROM_ABI constexpr borrowed_iterator_t<_Range>
555aa03b64SLouis Dionne   operator()(_Range&& __r, const _Type& __value, _Comp __comp = {}, _Proj __proj = {}) const {
56d8655fb3SLouis Dionne     return std::__lower_bound<_RangeAlgPolicy>(ranges::begin(__r), ranges::end(__r), __value, __comp, __proj);
5781715861SNikolas Klauser   }
5881715861SNikolas Klauser };
5981715861SNikolas Klauser 
6081715861SNikolas Klauser inline namespace __cpo {
61*d10dc5a0SChristopher Di Bella inline constexpr auto lower_bound = __lower_bound{};
6281715861SNikolas Klauser } // namespace __cpo
6381715861SNikolas Klauser } // namespace ranges
6481715861SNikolas Klauser 
6581715861SNikolas Klauser _LIBCPP_END_NAMESPACE_STD
6681715861SNikolas Klauser 
674f15267dSNikolas Klauser #endif // _LIBCPP_STD_VER >= 20
6881715861SNikolas Klauser 
697b462251SLouis Dionne _LIBCPP_POP_MACROS
707b462251SLouis Dionne 
7181715861SNikolas Klauser #endif // _LIBCPP___ALGORITHM_RANGES_LOWER_BOUND_H
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