1#ifndef _STDALIGN_H
 2#define _STDALIGN_H
 3
 4#ifndef __cplusplus
 5
 6/* this whole header only works in C11 or with compiler extensions */
 7#if __STDC_VERSION__ < 201112L && defined( __GNUC__)
 8#define _Alignas(t) __attribute__((__aligned__(t)))
 9#define _Alignof(t) __alignof__(t)
10#endif
11
12#define alignas _Alignas
13#define alignof _Alignof
14
15#endif
16
17#define __alignas_is_defined 1
18#define __alignof_is_defined 1
19
20#endif