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author | mikhnenko <mikhnenko@yandex-team.com> | 2023-11-04 00:34:43 +0300 |
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committer | mikhnenko <mikhnenko@yandex-team.com> | 2023-11-04 00:56:50 +0300 |
commit | 1b85f8248fcbe51733270e55a66115495f55e962 (patch) | |
tree | 5a15497b81da50ab1729df98ea80b44e6d17e8f2 /contrib/libs/cxxsupp/libcxxmsvc/include/__numeric/exclusive_scan.h | |
parent | 7f0f6f3bb94e4546f9c87b9ba3bed8721b1cd5de (diff) | |
download | ydb-1b85f8248fcbe51733270e55a66115495f55e962.tar.gz |
Use ym2 for sysincls generating
Diffstat (limited to 'contrib/libs/cxxsupp/libcxxmsvc/include/__numeric/exclusive_scan.h')
-rw-r--r-- | contrib/libs/cxxsupp/libcxxmsvc/include/__numeric/exclusive_scan.h | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/contrib/libs/cxxsupp/libcxxmsvc/include/__numeric/exclusive_scan.h b/contrib/libs/cxxsupp/libcxxmsvc/include/__numeric/exclusive_scan.h new file mode 100644 index 0000000000..c0c89b3880 --- /dev/null +++ b/contrib/libs/cxxsupp/libcxxmsvc/include/__numeric/exclusive_scan.h @@ -0,0 +1,53 @@ +// -*- 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___NUMERIC_EXCLUSIVE_SCAN_H +#define _LIBCPP___NUMERIC_EXCLUSIVE_SCAN_H + +#include <__config> +#include <__functional/operations.h> +#include <__utility/move.h> + +#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER) +# pragma GCC system_header +#endif + +_LIBCPP_BEGIN_NAMESPACE_STD + +#if _LIBCPP_STD_VER > 14 + +template <class _InputIterator, class _OutputIterator, class _Tp, class _BinaryOp> +_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 _OutputIterator +exclusive_scan(_InputIterator __first, _InputIterator __last, _OutputIterator __result, _Tp __init, _BinaryOp __b) { + if (__first != __last) { + _Tp __tmp(__b(__init, *__first)); + while (true) { + *__result = _VSTD::move(__init); + ++__result; + ++__first; + if (__first == __last) + break; + __init = _VSTD::move(__tmp); + __tmp = __b(__init, *__first); + } + } + return __result; +} + +template <class _InputIterator, class _OutputIterator, class _Tp> +_LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_AFTER_CXX17 _OutputIterator +exclusive_scan(_InputIterator __first, _InputIterator __last, _OutputIterator __result, _Tp __init) { + return _VSTD::exclusive_scan(__first, __last, __result, __init, _VSTD::plus<>()); +} + +#endif // _LIBCPP_STD_VER > 14 + +_LIBCPP_END_NAMESPACE_STD + +#endif // _LIBCPP___NUMERIC_EXCLUSIVE_SCAN_H |