29 lines
879 B
C++
29 lines
879 B
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___ATOMIC_IS_ALWAYS_LOCK_FREE_H
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#define _LIBCPP___ATOMIC_IS_ALWAYS_LOCK_FREE_H
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#include <__config>
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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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template <class _Tp>
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struct __libcpp_is_always_lock_free {
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// __atomic_always_lock_free is available in all Standard modes
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static const bool __value = __atomic_always_lock_free(sizeof(_Tp), 0);
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};
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_LIBCPP_END_NAMESPACE_STD
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#endif // _LIBCPP___ATOMIC_IS_ALWAYS_LOCK_FREE_H
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