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5d4439cc3e
release/17.x branch, commit 8f4dd44097c9ae25dd203d5ac87f3b48f854bba8 This adds the flag `-D_LIBCPP_PSTL_CPU_BACKEND_SERIAL`. A future enhancement could possibly pass something different if there is a compelling parallel implementation. That libdispatch one might be worth looking into.
52 lines
1.7 KiB
C++
Vendored
52 lines
1.7 KiB
C++
Vendored
//===----------------------------------------------------------------------===//
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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___ALGORITHM_FILL_H
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#define _LIBCPP___ALGORITHM_FILL_H
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#include <__algorithm/fill_n.h>
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#include <__config>
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#include <__iterator/iterator_traits.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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// fill isn't specialized for std::memset, because the compiler already optimizes the loop to a call to std::memset.
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template <class _ForwardIterator, class _Tp>
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inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
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void
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__fill(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value, forward_iterator_tag)
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{
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for (; __first != __last; ++__first)
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*__first = __value;
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}
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template <class _RandomAccessIterator, class _Tp>
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inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
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void
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__fill(_RandomAccessIterator __first, _RandomAccessIterator __last, const _Tp& __value, random_access_iterator_tag)
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{
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_VSTD::fill_n(__first, __last - __first, __value);
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}
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template <class _ForwardIterator, class _Tp>
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inline _LIBCPP_INLINE_VISIBILITY _LIBCPP_CONSTEXPR_SINCE_CXX20
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void
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fill(_ForwardIterator __first, _ForwardIterator __last, const _Tp& __value)
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{
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_VSTD::__fill(__first, __last, __value, typename iterator_traits<_ForwardIterator>::iterator_category());
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}
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___ALGORITHM_FILL_H
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