/* "@(#)struct.h	5.1	6/6/86" */

/*
 * 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)))
