04b45450ac
The _LIBCPP_PSTL_CUSTOMIZATION_POINT macro was assuming that the policy was called _RawPolicy and referencing it by name. It happened to always work but this was definitely accidental and an oversight in the original implementation. This patch fixes that by passing the policy to the macro explicitly. Noticed while reviewing #66968.
86 lines
3.2 KiB
C++
86 lines
3.2 KiB
C++
//===----------------------------------------------------------------------===//
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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_PSTL_FILL_H
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#define _LIBCPP___ALGORITHM_PSTL_FILL_H
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#include <__algorithm/fill_n.h>
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#include <__algorithm/pstl_for_each.h>
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#include <__algorithm/pstl_frontend_dispatch.h>
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#include <__config>
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#include <__iterator/concepts.h>
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#include <__iterator/cpp17_iterator_concepts.h>
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#include <__iterator/iterator_traits.h>
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#include <__type_traits/enable_if.h>
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#include <__type_traits/is_execution_policy.h>
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#include <__type_traits/remove_cvref.h>
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#include <__utility/move.h>
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#include <__utility/terminate_on_exception.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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#if !defined(_LIBCPP_HAS_NO_INCOMPLETE_PSTL) && _LIBCPP_STD_VER >= 17
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_LIBCPP_BEGIN_NAMESPACE_STD
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template <class>
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void __pstl_fill(); // declaration needed for the frontend dispatch below
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template <class _ExecutionPolicy,
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class _ForwardIterator,
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class _Tp,
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class _RawPolicy = __remove_cvref_t<_ExecutionPolicy>,
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enable_if_t<is_execution_policy_v<_RawPolicy>, int> = 0>
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_LIBCPP_HIDE_FROM_ABI void
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fill(_ExecutionPolicy&& __policy, _ForwardIterator __first, _ForwardIterator __last, const _Tp& __value) {
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_LIBCPP_REQUIRE_CPP17_FORWARD_ITERATOR(_ForwardIterator);
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std::__pstl_frontend_dispatch(
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_LIBCPP_PSTL_CUSTOMIZATION_POINT(__pstl_fill, _RawPolicy),
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[&](_ForwardIterator __g_first, _ForwardIterator __g_last, const _Tp& __g_value) {
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std::for_each(__policy, __g_first, __g_last, [&](__iter_reference<_ForwardIterator> __element) {
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__element = __g_value;
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});
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},
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std::move(__first),
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std::move(__last),
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__value);
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}
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template <class>
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void __pstl_fill_n(); // declaration needed for the frontend dispatch below
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template <class _ExecutionPolicy,
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class _ForwardIterator,
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class _SizeT,
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class _Tp,
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class _RawPolicy = __remove_cvref_t<_ExecutionPolicy>,
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enable_if_t<is_execution_policy_v<_RawPolicy>, int> = 0>
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_LIBCPP_HIDE_FROM_ABI void
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fill_n(_ExecutionPolicy&& __policy, _ForwardIterator __first, _SizeT __n, const _Tp& __value) {
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_LIBCPP_REQUIRE_CPP17_FORWARD_ITERATOR(_ForwardIterator);
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std::__pstl_frontend_dispatch(
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_LIBCPP_PSTL_CUSTOMIZATION_POINT(__pstl_fill_n, _RawPolicy),
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[&](_ForwardIterator __g_first, _SizeT __g_n, const _Tp& __g_value) {
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if constexpr (__has_random_access_iterator_category_or_concept<_ForwardIterator>::value)
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std::fill(__policy, __g_first, __g_first + __g_n, __g_value);
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else
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std::fill_n(__g_first, __g_n, __g_value);
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},
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std::move(__first),
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__n,
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__value);
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}
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_LIBCPP_END_NAMESPACE_STD
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#endif // !defined(_LIBCPP_HAS_NO_INCOMPLETE_PSTL) && _LIBCPP_STD_VER >= 17
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#endif // _LIBCPP___ALGORITHM_PSTL_FILL_H
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