[unix-history] / usr / src / libc / gen / rindex.c

/*
 * Return the ptr in sp at which the character c last
 * appears; NULL if not found
*/

#define NULL 0

char *
rindex(sp, c)
register char *sp, c;
{
	register char *r;

	r = NULL;
	do {
		if (*sp == c)
			r = sp;
	} while (*sp++);
	return(r);
}
Commit	Line	Data
9c8fc5ca BJ	1	/*
	2	* Return the ptr in sp at which the character c last
	3	* appears; NULL if not found
	4	*/
	5
	6	#define NULL 0
	7
	8	char *
	9	rindex(sp, c)
	10	register char *sp, c;
	11	{
	12	register char *r;
	13
	14	r = NULL;
	15	do {
	16	if (*sp == c)
	17	r = sp;
	18	} while (*sp++);
	19	return(r);
	20	}