| #ifndef _STDDEF_H |
| #define _STDDEF_H |
| |
| #if __cplusplus >= 201103L |
| #define NULL nullptr |
| #elif defined(__cplusplus) |
| #define NULL 0L |
| #else |
| #define NULL ((void*)0) |
| #endif |
| |
| #define __NEED_ptrdiff_t |
| #define __NEED_size_t |
| #define __NEED_wchar_t |
| #if __STDC_VERSION__ >= 201112L || __cplusplus >= 201103L |
| #define __NEED_max_align_t |
| #endif |
| |
| #include <bits/alltypes.h> |
| |
| #if __GNUC__ > 3 |
| #define offsetof(type, member) __builtin_offsetof(type, member) |
| #else |
| #define offsetof(type, member) ((size_t)( (char *)&(((type *)0)->member) - (char *)0 )) |
| #endif |
| |
| #endif |