File: byte_diff.c

package info (click to toggle)
fastforward 1%3A0.51-11
  • links: PTS, VCS
  • area: main
  • in suites: forky, sid
  • size: 1,060 kB
  • sloc: ansic: 8,033; makefile: 483; sh: 160
file content (16 lines) | stat: -rw-r--r-- 453 bytes parent folder | download | duplicates (73) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
 
#include "byte.h"

int byte_diff(s,n,t)
register char *s;
register unsigned int n;
register char *t;
{
  for (;;) {
    if (!n) return 0; if (*s != *t) break; ++s; ++t; --n;
    if (!n) return 0; if (*s != *t) break; ++s; ++t; --n;
    if (!n) return 0; if (*s != *t) break; ++s; ++t; --n;
    if (!n) return 0; if (*s != *t) break; ++s; ++t; --n;
  }
  return ((int)(unsigned int)(unsigned char) *s)
       - ((int)(unsigned int)(unsigned char) *t);
}