4.3BSD - /usr/src/lib/libc/compat-sys5/strcmpn.c

   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) 3/9/86";
   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: }

Defined functions

Defined variables