[deliverable/linux.git] / include / linux / stddef.h

#ifndef _LINUX_STDDEF_H
#define _LINUX_STDDEF_H

#include <uapi/linux/stddef.h>


#undef NULL
#define NULL ((void *)0)

enum {
	false	= 0,
	true	= 1
};

#undef offsetof
#ifdef __compiler_offsetof
#define offsetof(TYPE,MEMBER) __compiler_offsetof(TYPE,MEMBER)
#else
#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
#endif
#endif

/**
 * offsetofend(TYPE, MEMBER)
 *
 * @TYPE: The type of the structure
 * @MEMBER: The member within the structure to get the end offset of
 */
#define offsetofend(TYPE, MEMBER) \
	(offsetof(TYPE, MEMBER)	+ sizeof(((TYPE *)0)->MEMBER))
Commit	Line	Data
1da177e4 LT	1	#ifndef _LINUX_STDDEF_H
	2	#define _LINUX_STDDEF_H
	3
607ca46e	4	#include <uapi/linux/stddef.h>
1da177e4	5
2084c24a	6
1da177e4	7	#undef NULL
1da177e4	8	#define NULL ((void *)0)
6e218287 RK	9
	10	enum {
	11	false = 0,
	12	true = 1
	13	};
	14
1da177e4 LT	15	#undef offsetof
	16	#ifdef __compiler_offsetof
	17	#define offsetof(TYPE,MEMBER) __compiler_offsetof(TYPE,MEMBER)
	18	#else
	19	#define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *)0)->MEMBER)
	20	#endif
1da177e4	21	#endif
38764884 DV	22
	23	/**
	24	* offsetofend(TYPE, MEMBER)
	25	*
	26	* @TYPE: The type of the structure
	27	* @MEMBER: The member within the structure to get the end offset of
	28	*/
	29	#define offsetofend(TYPE, MEMBER) \
	30	(offsetof(TYPE, MEMBER) + sizeof(((TYPE *)0)->MEMBER))