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-exception
7//
8//===----------------------------------------------------------------------===//
9
10#ifndef _LIBCPP_CSTDALIGN
11#define _LIBCPP_CSTDALIGN
12
13/*
14 cstdalign synopsis
15
16Macros:
17
18 __alignas_is_defined
19 __alignof_is_defined
20
21*/
22
23#if __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
24# include <__cxx03/__config>
25#else
26# 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_H
32# error "If libc++ starts defining <stdalign.h>, the __has_include check should move to libc++'s <stdalign.h>"
33# endif
34# endif
35
36# if !defined(_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER)
37# pragma GCC system_header
38# endif
39
40# undef __alignas_is_defined
41# define __alignas_is_defined 1
42
43# undef __alignof_is_defined
44# define __alignof_is_defined 1
45
46# if _LIBCPP_STD_VER >= 17 && !__building_module(std) && _LIBCPP_DIAGNOSE_DEPRECATED_HEADERS
47# warning <cstdalign> is deprecated in C++17 and removed in C++20.
48# endif
49
50#endif // __cplusplus < 201103L && defined(_LIBCPP_USE_FROZEN_CXX03_HEADERS)
51
52#endif // _LIBCPP_CSTDALIGN