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 21