1fe6060f1SDimitry Andric //===----------------------------------------------------------------------===// 2fe6060f1SDimitry Andric // 3fe6060f1SDimitry Andric // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4fe6060f1SDimitry Andric // See https://llvm.org/LICENSE.txt for license information. 5fe6060f1SDimitry Andric // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6fe6060f1SDimitry Andric // 7fe6060f1SDimitry Andric //===----------------------------------------------------------------------===// 8fe6060f1SDimitry Andric 9fe6060f1SDimitry Andric #ifndef _LIBCPP___ALGORITHM_BINARY_SEARCH_H 10fe6060f1SDimitry Andric #define _LIBCPP___ALGORITHM_BINARY_SEARCH_H 11fe6060f1SDimitry Andric 12fe6060f1SDimitry Andric #include <__algorithm/comp.h> 13fe6060f1SDimitry Andric #include <__algorithm/comp_ref_type.h> 145e801ac6SDimitry Andric #include <__algorithm/lower_bound.h> 1504eeddc0SDimitry Andric #include <__config> 16fe6060f1SDimitry Andric #include <__iterator/iterator_traits.h> 17fe6060f1SDimitry Andric 18fe6060f1SDimitry Andric #if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) 19fe6060f1SDimitry Andric # pragma GCC system_header 20fe6060f1SDimitry Andric #endif 21fe6060f1SDimitry Andric 22fe6060f1SDimitry Andric _LIBCPP_BEGIN_NAMESPACE_STD 23fe6060f1SDimitry Andric 24fe6060f1SDimitry Andric template <class _ForwardIterator, class _Tp, class _Compare> 25*0fca6ea1SDimitry Andric _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool 26cb14a3feSDimitry Andric binary_search(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value, _Compare __comp) { 27bdd1243dSDimitry Andric __first = std::lower_bound<_ForwardIterator, _Tp, __comp_ref_type<_Compare> >(__first, __last, __value, __comp); 28753f127fSDimitry Andric return __first != __last && !__comp(__value, *__first); 29fe6060f1SDimitry Andric } 30fe6060f1SDimitry Andric 31fe6060f1SDimitry Andric template <class _ForwardIterator, class _Tp> 32*0fca6ea1SDimitry Andric _LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 bool 33cb14a3feSDimitry Andric binary_search(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value) { 3406c3fb27SDimitry Andric return std::binary_search(__first, __last, __value, __less<>()); 35fe6060f1SDimitry Andric } 36fe6060f1SDimitry Andric 37fe6060f1SDimitry Andric _LIBCPP_END_NAMESPACE_STD 38fe6060f1SDimitry Andric 39fe6060f1SDimitry Andric #endif // _LIBCPP___ALGORITHM_BINARY_SEARCH_H 40