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1// -*- C++ -*-2//===----------------------------------------------------------------------===//3//4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.5// See https://llvm.org/LICENSE.txt for license information.6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception7//8//===----------------------------------------------------------------------===//9 10#ifndef _LIBCPP_CSTDALIGN11#define _LIBCPP_CSTDALIGN12 13/*14 cstdalign synopsis15 16Macros:17 18 __alignas_is_defined19 __alignof_is_defined20 21*/22 23#if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)24# include <__cxx03/__config>25#else26# include <__config>27 28// <stdalign.h> is not provided by libc++29# if __has_include(<stdalign.h>)30# include <stdalign.h>31# ifdef _LIBCPP_STDALIGN_H32# error "If libc++ starts defining <stdalign.h>, the __has_include check should move to libc++'s <stdalign.h>"33# endif34# endif35 36# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)37# pragma GCC system_header38# endif39 40# undef __alignas_is_defined41# define __alignas_is_defined 142 43# undef __alignof_is_defined44# define __alignof_is_defined 145 46# if _LIBCPP_STD_VER >= 17 && !__building_module(std) && _LIBCPP_DIAGNOSE_DEPRECATED_HEADERS47# warning <cstdalign> is deprecated in C++17 and removed in C++20.48# endif49 50#endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)51 52#endif // _LIBCPP_CSTDALIGN53