include/linux/stddef.h

   1 #ifndef _LINUX_STDDEF_H
   2 #define _LINUX_STDDEF_H
   3
   4 #include <linux/compiler.h>
   5
   6 #undef NULL
   7 #if defined(__cplusplus)
   8 #define NULL 0
   9 #else
  10 #define NULL ((void *)0)
  11 #endif
  12
  13 #undef offsetof
  14 #ifdef __compiler_offsetof
  15 #define offsetof(TYPE,MEMBER) __compiler_offsetof(TYPE,MEMBER)
  16 #else
  17 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
  18 #endif
  19
  20 #endif