2 * (c) copyright 1987 by the Vrije Universiteit, Amsterdam, The Netherlands.
3 * See the copyright notice in the ACK home directory, in the file "Copyright".
5 /* $Id: strcmp.c,v 1.4 1994/06/24 11:56:43 ceriel Exp $ */
10 strcmp(register const char *s1, register const char *s2)
12 while (*s1 == *s2++) {
17 if (*s1 == '\0') return -1;
18 if (*--s2 == '\0') return 1;
19 return (unsigned char) *s1 - (unsigned char) *s2;