File: str_diffn.c

package info (click to toggle)
qmail 1.03-14
  • links: PTS
  • area: non-free
  • in suites: potato
  • size: 2,648 kB
  • ctags: 1,885
  • sloc: ansic: 14,818; makefile: 2,198; sh: 605; perl: 537
file content (18 lines) | stat: -rw-r--r-- 550 bytes parent folder | download | duplicates (38) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
 
#include "str.h"

int str_diffn(s,t,len)
register char *s;
register char *t;
unsigned int len;
{
  register char x;

  for (;;) {
    if (!len--) return 0; x = *s; if (x != *t) break; if (!x) break; ++s; ++t;
    if (!len--) return 0; x = *s; if (x != *t) break; if (!x) break; ++s; ++t;
    if (!len--) return 0; x = *s; if (x != *t) break; if (!x) break; ++s; ++t;
    if (!len--) return 0; x = *s; if (x != *t) break; if (!x) break; ++s; ++t;
  }
  return ((int)(unsigned int)(unsigned char) x)
       - ((int)(unsigned int)(unsigned char) *t);
}