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

/*
 * Concatenate s2 on the end of s1.  S1's space must be large enough.
 * Return s1.
 */

char *
strcat(s1, s2)
register char *s1, *s2;
{
	register char *os1;

	os1 = s1;
	while (*s1++)
		;
	--s1;
	while (*s1++ = *s2++)
		;
	return(os1);
}
Commit	Line	Data
18e5fa7e BJ	1	/*
	2	* Concatenate s2 on the end of s1. S1's space must be large enough.
	3	* Return s1.
	4	*/
	5
	6	char *
	7	strcat(s1, s2)
	8	register char s1, s2;
	9	{
	10	register char *os1;
	11
	12	os1 = s1;
	13	while (*s1++)
	14	;
	15	--s1;
	16	while (s1++ = s2++)
	17	;
	18	return(os1);
	19	}