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author | Andrey Khalyavin <halyavin@gmail.com> | 2022-02-10 16:46:30 +0300 |
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committer | Daniil Cherednik <dcherednik@yandex-team.ru> | 2022-02-10 16:46:30 +0300 |
commit | 4b839d0704ee9be1dabb0310a1f03af24963637b (patch) | |
tree | 1a2c5ffcf89eb53ecd79dbc9bc0a195c27404d0c /contrib/libs/cxxsupp/libcxx/include/__algorithm/shift_left.h | |
parent | f773626848a7c7456803654292e716b83d69cc12 (diff) | |
download | ydb-4b839d0704ee9be1dabb0310a1f03af24963637b.tar.gz |
Restoring authorship annotation for Andrey Khalyavin <halyavin@gmail.com>. Commit 2 of 2.
Diffstat (limited to 'contrib/libs/cxxsupp/libcxx/include/__algorithm/shift_left.h')
-rw-r--r-- | contrib/libs/cxxsupp/libcxx/include/__algorithm/shift_left.h | 112 |
1 files changed, 56 insertions, 56 deletions
diff --git a/contrib/libs/cxxsupp/libcxx/include/__algorithm/shift_left.h b/contrib/libs/cxxsupp/libcxx/include/__algorithm/shift_left.h index 2fd3058d5b..8d9bc07d2e 100644 --- a/contrib/libs/cxxsupp/libcxx/include/__algorithm/shift_left.h +++ b/contrib/libs/cxxsupp/libcxx/include/__algorithm/shift_left.h @@ -1,56 +1,56 @@ -//===----------------------------------------------------------------------===// -// -// 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_SHIFT_LEFT_H -#define _LIBCPP___ALGORITHM_SHIFT_LEFT_H - -#include <__config> -#include <__algorithm/move.h> -#include <__iterator/iterator_traits.h> -#include <type_traits> // swap - -#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) -#pragma GCC system_header -#endif - -_LIBCPP_BEGIN_NAMESPACE_STD - -#if _LIBCPP_STD_VER > 17 - -template <class _ForwardIterator> -inline _LIBCPP_INLINE_VISIBILITY constexpr -_ForwardIterator -shift_left(_ForwardIterator __first, _ForwardIterator __last, - typename iterator_traits<_ForwardIterator>::difference_type __n) -{ - if (__n == 0) { - return __last; - } - - _ForwardIterator __m = __first; - if constexpr (__is_cpp17_random_access_iterator<_ForwardIterator>::value) { - if (__n >= __last - __first) { - return __first; - } - __m += __n; - } else { - for (; __n > 0; --__n) { - if (__m == __last) { - return __first; - } - ++__m; - } - } - return _VSTD::move(__m, __last, __first); -} - -#endif // _LIBCPP_STD_VER > 17 - -_LIBCPP_END_NAMESPACE_STD - -#endif // _LIBCPP___ALGORITHM_SHIFT_LEFT_H +//===----------------------------------------------------------------------===// +// +// 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_SHIFT_LEFT_H +#define _LIBCPP___ALGORITHM_SHIFT_LEFT_H + +#include <__config> +#include <__algorithm/move.h> +#include <__iterator/iterator_traits.h> +#include <type_traits> // swap + +#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) +#pragma GCC system_header +#endif + +_LIBCPP_BEGIN_NAMESPACE_STD + +#if _LIBCPP_STD_VER > 17 + +template <class _ForwardIterator> +inline _LIBCPP_INLINE_VISIBILITY constexpr +_ForwardIterator +shift_left(_ForwardIterator __first, _ForwardIterator __last, + typename iterator_traits<_ForwardIterator>::difference_type __n) +{ + if (__n == 0) { + return __last; + } + + _ForwardIterator __m = __first; + if constexpr (__is_cpp17_random_access_iterator<_ForwardIterator>::value) { + if (__n >= __last - __first) { + return __first; + } + __m += __n; + } else { + for (; __n > 0; --__n) { + if (__m == __last) { + return __first; + } + ++__m; + } + } + return _VSTD::move(__m, __last, __first); +} + +#endif // _LIBCPP_STD_VER > 17 + +_LIBCPP_END_NAMESPACE_STD + +#endif // _LIBCPP___ALGORITHM_SHIFT_LEFT_H |