1 #ifndef _LINUX_STDDEF_H 2 #define _LINUX_STDDEF_H 3 4 #include <uapi/linux/stddef.h> 5 6 #undef NULL 7 #define NULL ((void *)0) 8 9 enum { 10 false = 0, 11 true = 1 12 }; 13 14 #undef offsetof 15 #ifdef __compiler_offsetof 16 #define offsetof(TYPE, MEMBER) __compiler_offsetof(TYPE, MEMBER) 17 #else 18 #define offsetof(TYPE, MEMBER) ((size_t)&((TYPE *)0)->MEMBER) 19 #endif 20 21 /** 22 * offsetofend(TYPE, MEMBER) 23 * 24 * @TYPE: The type of the structure 25 * @MEMBER: The member within the structure to get the end offset of 26 */ 27 #define offsetofend(TYPE, MEMBER) \ 28 (offsetof(TYPE, MEMBER) + sizeof(((TYPE *)0)->MEMBER)) 29 30 #endif 31