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58 lines
1.9 KiB
C++
58 lines
1.9 KiB
C++
// -*- C++ -*-
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#ifndef _LIBCPP___ALGORITHM_ADJACENT_FIND_H
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#define _LIBCPP___ALGORITHM_ADJACENT_FIND_H
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#include <__algorithm/comp.h>
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#include <__algorithm/iterator_operations.h>
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#include <__config>
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#include <__iterator/iterator_traits.h>
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#include <__utility/move.h>
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#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
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# pragma GCC system_header
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#endif
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_LIBCPP_PUSH_MACROS
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#include <__undef_macros>
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_LIBCPP_BEGIN_NAMESPACE_STD
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template <class _Iter, class _Sent, class _BinaryPredicate>
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_LIBCPP_NODISCARD _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _Iter
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__adjacent_find(_Iter __first, _Sent __last, _BinaryPredicate&& __pred) {
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if (__first == __last)
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return __first;
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_Iter __i = __first;
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while (++__i != __last) {
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if (__pred(*__first, *__i))
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return __first;
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__first = __i;
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}
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return __i;
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}
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template <class _ForwardIterator, class _BinaryPredicate>
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_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator
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adjacent_find(_ForwardIterator __first, _ForwardIterator __last, _BinaryPredicate __pred) {
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return std::__adjacent_find(std::move(__first), std::move(__last), __pred);
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}
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template <class _ForwardIterator>
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_LIBCPP_NODISCARD inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator
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adjacent_find(_ForwardIterator __first, _ForwardIterator __last) {
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return std::adjacent_find(std::move(__first), std::move(__last), __equal_to());
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}
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_LIBCPP_END_NAMESPACE_STD
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_LIBCPP_POP_MACROS
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#endif // _LIBCPP___ALGORITHM_ADJACENT_FIND_H
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