lib/nstrcmp.c

   1 /*
   2  * Copyright 1998 by Andi Kleen. Subject to the GPL.
   3  * Copyright 2002 by Bruno Hall who contributed a shorter rewrite
   4  *                                  which actually works
   5  *
   6  * $Id: nstrcmp.c,v 1.3 2002/12/10 00:37:33 ecki Exp $
   7  */
   8 #include <ctype.h>
   9 #include <stdlib.h>
  10 #include "util.h"
  11
  12
  13 /* like strcmp(), but knows about numbers */
  14 int nstrcmp(const char *a, const char *b)
  15 {
  16     while (*a == *b && !isdigit(*a)) {
  17         if (*a++ == 0)
  18             return 0;
  19         b++;
  20     }
  21     if (isdigit(*a) && isdigit(*b))
  22         return atoi(a) - atoi(b);
  23     return *(const unsigned char *)a - *(const unsigned char *)b;
  24 }