[unix-history] / usr / src / lib / libc / string / strncmp.c

#if defined(LIBC_SCCS) && !defined(lint)
static char sccsid[] = "@(#)strncmp.c	5.2 (Berkeley) %G%";
#endif LIBC_SCCS and not lint

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

strncmp(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
2ce81398 DS	1	#if defined(LIBC_SCCS) && !defined(lint)
	2	static char sccsid[] = "@(#)strncmp.c 5.2 (Berkeley) %G%";
	3	#endif LIBC_SCCS and not lint
b8f253e8	4
7db9433a BJ	5	/*
	6	* Compare strings (at most n bytes): s1>s2: >0 s1==s2: 0 s1<s2: <0
	7	*/
	8
	9	strncmp(s1, s2, n)
	10	register char s1, s2;
	11	register n;
	12	{
	13
	14	while (--n >= 0 && s1 == s2++)
	15	if (*s1++ == '\0')
	16	return(0);
	17	return(n<0 ? 0 : s1 - --s2);
	18	}