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| author | Devtools Arcadia <arcadia-devtools@yandex-team.ru> | 2022-02-07 18:08:42 +0300 |
|---|---|---|
| committer | Devtools Arcadia <arcadia-devtools@mous.vla.yp-c.yandex.net> | 2022-02-07 18:08:42 +0300 |
| commit | 1110808a9d39d4b808aef724c861a2e1a38d2a69 (patch) | |
| tree | e26c9fed0de5d9873cce7e00bc214573dc2195b7 /contrib/libs/cxxsupp/libcxx/include/__algorithm/adjacent_find.h | |
| download | ydb-1110808a9d39d4b808aef724c861a2e1a38d2a69.tar.gz | |
intermediate changes
ref:cde9a383711a11544ce7e107a78147fb96cc4029
Diffstat (limited to 'contrib/libs/cxxsupp/libcxx/include/__algorithm/adjacent_find.h')
| -rw-r--r-- | contrib/libs/cxxsupp/libcxx/include/__algorithm/adjacent_find.h | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/contrib/libs/cxxsupp/libcxx/include/__algorithm/adjacent_find.h b/contrib/libs/cxxsupp/libcxx/include/__algorithm/adjacent_find.h new file mode 100644 index 0000000000..621ef5f20f --- /dev/null +++ b/contrib/libs/cxxsupp/libcxx/include/__algorithm/adjacent_find.h @@ -0,0 +1,46 @@ +// -*- 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 <__config> +#include <__algorithm/comp.h> +#include <__iterator/iterator_traits.h> + +#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) +#pragma GCC system_header +#endif + +_LIBCPP_BEGIN_NAMESPACE_STD + +template <class _ForwardIterator, class _BinaryPredicate> +_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 _ForwardIterator +adjacent_find(_ForwardIterator __first, _ForwardIterator __last, _BinaryPredicate __pred) { + if (__first != __last) { + _ForwardIterator __i = __first; + while (++__i != __last) { + if (__pred(*__first, *__i)) + return __first; + __first = __i; + } + } + return __last; +} + +template <class _ForwardIterator> +_LIBCPP_NODISCARD_EXT inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 _ForwardIterator +adjacent_find(_ForwardIterator __first, _ForwardIterator __last) { + typedef typename iterator_traits<_ForwardIterator>::value_type __v; + return _VSTD::adjacent_find(__first, __last, __equal_to<__v>()); +} + +_LIBCPP_END_NAMESPACE_STD + +#endif // _LIBCPP___ALGORITHM_ADJACENT_FIND_H |