1 #ifndef _LINUX_STDDEF_H
2 #define _LINUX_STDDEF_H
3 
4 #undef NULL
5 #if defined(__cplusplus)
6 #define NULL 0
7 #else
8 #define NULL ((void *)0)
9 #endif
10 
11 #undef offsetof
12 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
13 
14 #endif
15