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// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// 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_ADJACENT_FIND_H
#define _LIBCPP___ALGORITHM_ADJACENT_FIND_H
#include <__algorithm/comp.h>
#include <__algorithm/iterator_operations.h>
#include <__config>
#include <__iterator/iterator_traits.h>
#include <__utility/move.h>
#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
# pragma GCC system_header
#endif
_LIBCPP_PUSH_MACROS
#include <__undef_macros>
_LIBCPP_BEGIN_NAMESPACE_STD
template <class _Iter, class _Sent, class _BinaryPredicate>
_LIBCPP_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _Iter
__adjacent_find(_Iter __first, _Sent __last, _BinaryPredicate&& __pred) {
if (__first == __last)
return __first;
_Iter __i = __first;
while (++__i != __last) {
if (__pred(*__first, *__i))
return __first;
__first = __i;
}
return __i;
}
template <class _ForwardIterator, class _BinaryPredicate>
_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator
adjacent_find(_ForwardIterator __first, _ForwardIterator __last, _BinaryPredicate __pred) {
return std::__adjacent_find(std::move(__first), std::move(__last), __pred);
}
template <class _ForwardIterator>
_LIBCPP_NODISCARD_EXT inline _LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _ForwardIterator
adjacent_find(_ForwardIterator __first, _ForwardIterator __last) {
return std::adjacent_find(std::move(__first), std::move(__last), __equal_to());
}
_LIBCPP_END_NAMESPACE_STD
_LIBCPP_POP_MACROS
#endif // _LIBCPP___ALGORITHM_ADJACENT_FIND_H
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