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aade74675c
This makes exception handling a lot simpler, since we don't have to convert any exceptions this way. Is also properly handles all the user-thrown exceptions. Reviewed By: ldionne, #libc Spies: arichardson, mstorsjo, libcxx-commits Differential Revision: https://reviews.llvm.org/D154238
73 lines
2.7 KiB
C++
73 lines
2.7 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_IS_PARITTIONED
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#define _LIBCPP___ALGORITHM_PSTL_IS_PARITTIONED
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#include <__algorithm/pstl_any_all_none_of.h>
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#include <__algorithm/pstl_backend.h>
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#include <__algorithm/pstl_find.h>
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#include <__algorithm/pstl_frontend_dispatch.h>
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#include <__config>
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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 <optional>
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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_is_partitioned();
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template <class _ExecutionPolicy,
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class _ForwardIterator,
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class _Predicate,
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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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[[nodiscard]] _LIBCPP_HIDE_FROM_ABI optional<bool> __is_partitioned(
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_ExecutionPolicy&& __policy, _ForwardIterator&& __first, _ForwardIterator&& __last, _Predicate&& __pred) {
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return std::__pstl_frontend_dispatch(
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_LIBCPP_PSTL_CUSTOMIZATION_POINT(__pstl_is_partitioned, _RawPolicy),
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[&__policy](_ForwardIterator __g_first, _ForwardIterator __g_last, _Predicate __g_pred) {
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__g_first = std::find_if_not(__policy, __g_first, __g_last, __g_pred);
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if (__g_first == __g_last)
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return true;
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++__g_first;
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return std::none_of(__policy, __g_first, __g_last, __g_pred);
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},
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std::move(__first),
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std::move(__last),
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std::move(__pred));
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}
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template <class _ExecutionPolicy,
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class _ForwardIterator,
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class _Predicate,
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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_NODISCARD_EXT _LIBCPP_HIDE_FROM_ABI bool
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is_partitioned(_ExecutionPolicy&& __policy, _ForwardIterator __first, _ForwardIterator __last, _Predicate __pred) {
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auto __res = std::__is_partitioned(__policy, std::move(__first), std::move(__last), std::move(__pred));
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if (!__res)
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std::__throw_bad_alloc();
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return *std::move(__res);
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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_IS_PARITTIONED
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