File: str_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 (17 lines) | stat: -rw-r--r-- 439 bytes parent folder | download | duplicates (27) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
 
#include "str.h"

int str_diff(s,t)
register char *s;
register char *t;
{
  register char x;

  for (;;) {
    x = *s; if (x != *t) break; if (!x) break; ++s; ++t;
    x = *s; if (x != *t) break; if (!x) break; ++s; ++t;
    x = *s; if (x != *t) break; if (!x) break; ++s; ++t;
    x = *s; if (x != *t) break; if (!x) break; ++s; ++t;
  }
  return ((int)(unsigned int)(unsigned char) x)
       - ((int)(unsigned int)(unsigned char) *t);
}