mdw@git.distorted.org.uk Git - dot-forward/blob - case_diffb.c

   1 #include "case.h"
   2
   3 int case_diffb(s,len,t)
   4 register char *s;
   5 unsigned int len;
   6 register char *t;
   7 {
   8   register unsigned char x;
   9   register unsigned char y;
  10
  11   while (len > 0) {
  12     --len;
  13     x = *s++ - 'A';
  14     if (x <= 'Z' - 'A') x += 'a'; else x += 'A';
  15     y = *t++ - 'A';
  16     if (y <= 'Z' - 'A') y += 'a'; else y += 'A';
  17     if (x != y)
  18       return ((int)(unsigned int) x) - ((int)(unsigned int) y);
  19   }
  20   return 0;
  21 }