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

/*
 * Compare strings (at most n bytes):  s1>s2: >0  s1==s2: 0  s1<s2: <0
 */

strcmpn(s1, s2, n)
register char *s1, *s2;
register n;
{

	while (--n >= 0 && *s1 == *s2++)
		if (*s1++ == '\0')
			return(0);
	return(n<0 ? 0 : *s1 - *--s2);
}
Commit	Line	Data
e5acd2fe TL	1	/*
	2	* Compare strings (at most n bytes): s1>s2: >0 s1==s2: 0 s1<s2: <0
	3	*/
	4
	5	strcmpn(s1, s2, n)
	6	register char s1, s2;
	7	register n;
	8	{
	9
	10	while (--n >= 0 && s1 == s2++)
	11	if (*s1++ == '\0')
	12	return(0);
	13	return(n<0 ? 0 : s1 - --s2);
	14	}