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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.
38 lines
1.1 KiB
C++
Vendored
38 lines
1.1 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___CONCEPTS_BOOLEAN_TESTABLE_H
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#define _LIBCPP___CONCEPTS_BOOLEAN_TESTABLE_H
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#include <__concepts/convertible_to.h>
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#include <__config>
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#include <__utility/forward.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 >= 20
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// [concepts.booleantestable]
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template <class _Tp>
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concept __boolean_testable_impl = convertible_to<_Tp, bool>;
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template <class _Tp>
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concept __boolean_testable = __boolean_testable_impl<_Tp> && requires(_Tp&& __t) {
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{ !_VSTD::forward<_Tp>(__t) } -> __boolean_testable_impl;
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};
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#endif // _LIBCPP_STD_VER >= 20
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___CONCEPTS_BOOLEAN_TESTABLE_H
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