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1//===----------------------------------------------------------------------===//2//3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.4// See https://llvm.org/LICENSE.txt for license information.5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception6//7//===----------------------------------------------------------------------===//8 9#ifndef _LIBCPP___NEW_INTERFERENCE_SIZE_H10#define _LIBCPP___NEW_INTERFERENCE_SIZE_H11 12#include <__config>13#include <__cstddef/size_t.h>14 15#if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)16# pragma GCC system_header17#endif18 19_LIBCPP_BEGIN_NAMESPACE_STD20 21#if _LIBCPP_STD_VER >= 1722 23# if defined(__GCC_DESTRUCTIVE_SIZE) && defined(__GCC_CONSTRUCTIVE_SIZE)24 25inline constexpr size_t hardware_destructive_interference_size = __GCC_DESTRUCTIVE_SIZE;26inline constexpr size_t hardware_constructive_interference_size = __GCC_CONSTRUCTIVE_SIZE;27 28# endif // defined(__GCC_DESTRUCTIVE_SIZE) && defined(__GCC_CONSTRUCTIVE_SIZE)29 30#endif // _LIBCPP_STD_VER >= 1731 32_LIBCPP_END_NAMESPACE_STD33 34#endif // _LIBCPP___NEW_INTERFERENCE_SIZE_H35