1 /* 2 * Copyright (c) 1980 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 #if defined(LIBC_SCCS) && !defined(lint) 8 static char sccsid[] = "@(#)strcmpn.c 4.3 (Berkeley) 03/09/86"; 9 #endif LIBC_SCCS and not lint 10 11 /* 12 * Compare strings (at most n bytes): s1>s2: >0 s1==s2: 0 s1<s2: <0 13 */ 14 15 strcmpn(s1, s2, n) 16 register char *s1, *s2; 17 register n; 18 { 19 20 while (--n >= 0 && *s1 == *s2++) 21 if (*s1++ == '\0') 22 return(0); 23 return(n<0 ? 0 : *s1 - *--s2); 24 } 25