[unix-history] / usr / src / include / struct.h

/*	struct.h	4.1	83/05/03	*/

/*
 * access to information relating to the fields of a structure
 */

#define	fldoff(str, fld)	((int)&(((struct str *)0)->fld))
#define	fldsiz(str, fld)	(sizeof(((struct str *)0)->fld))
#define	strbase(str, ptr, fld)	((struct str *)((char *)(ptr)-fldoff(str, fld)))
Commit	Line	Data
e8453270 SL	1	/* struct.h 4.1 83/05/03 */
	2
	3	/*
	4	* access to information relating to the fields of a structure
	5	*/
	6
	7	#define fldoff(str, fld) ((int)&(((struct str *)0)->fld))
	8	#define fldsiz(str, fld) (sizeof(((struct str *)0)->fld))
	9	#define strbase(str, ptr, fld) ((struct str )((char )(ptr)-fldoff(str, fld)))