1 /* 2 * Copyright (c) 1985 Regents of the University of California. 3 * All rights reserved. The Berkeley software License Agreement 4 * specifies the terms and conditions for redistribution. 5 */ 6 7 /* 8 * Sys5 compat routine 9 */ 10 11 #ifndef lint 12 static char sccsid[] = "@(#)memcmp.c 5.1 (Berkeley) 85/08/05"; 13 #endif 14 15 memcmp(s1, s2, n) 16 register char *s1, *s2; 17 register n; 18 { 19 while (--n >= 0) 20 if (*s1++ != *s2++) 21 return (*--s1 - *--s2); 22 return (0); 23 } 24