| 1 | #ifndef _STDDEF_H |
| 2 | #define _STDDEF_H |
| 3 | |
| 4 | #if __cplusplus >= 201103L |
| 5 | #define NULL nullptr |
| 6 | #elif defined(__cplusplus) |
| 7 | #define NULL 0L |
| 8 | #else |
| 9 | #define NULL ((void*)0) |
| 10 | #endif |
| 11 | |
| 12 | #define __NEED_ptrdiff_t |
| 13 | #define __NEED_size_t |
| 14 | #define __NEED_wchar_t |
| 15 | #if __STDC_VERSION__ >= 201112L || __cplusplus >= 201103L |
| 16 | #define __NEED_max_align_t |
| 17 | #endif |
| 18 | |
| 19 | #include <bits/alltypes.h> |
| 20 | |
| 21 | #if __GNUC__ > 3 |
| 22 | #define offsetof(type, member) __builtin_offsetof(type, member) |
| 23 | #else |
| 24 | #define offsetof(type, member) ((size_t)( (char *)&(((type *)0)->member) - (char *)0 )) |
| 25 | #endif |
| 26 | |
| 27 | #endif |