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77a00c0d54
As part of the upcoming clang-formatting of libc++, this patch performs the long desired removal of the _VSTD macro. See https://discourse.llvm.org/t/rfc-clang-formatting-all-of-libc-once-and-for-all for the clang-format proposal.
49 lines
1.7 KiB
C++
49 lines
1.7 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___NUMERIC_REDUCE_H
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#define _LIBCPP___NUMERIC_REDUCE_H
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#include <__config>
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#include <__functional/operations.h>
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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_BEGIN_NAMESPACE_STD
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#if _LIBCPP_STD_VER >= 17
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template <class _InputIterator, class _Tp, class _BinaryOp>
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_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _Tp reduce(_InputIterator __first, _InputIterator __last,
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_Tp __init, _BinaryOp __b) {
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for (; __first != __last; ++__first)
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__init = __b(std::move(__init), *__first);
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return __init;
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}
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template <class _InputIterator, class _Tp>
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_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 _Tp reduce(_InputIterator __first, _InputIterator __last,
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_Tp __init) {
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return std::reduce(__first, __last, __init, std::plus<>());
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}
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template <class _InputIterator>
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_LIBCPP_HIDE_FROM_ABI _LIBCPP_CONSTEXPR_SINCE_CXX20 typename iterator_traits<_InputIterator>::value_type
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reduce(_InputIterator __first, _InputIterator __last) {
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return std::reduce(__first, __last, typename iterator_traits<_InputIterator>::value_type{});
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}
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#endif
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___NUMERIC_REDUCE_H
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