File: case_diffb.c

package info (click to toggle)
serialmail 0.72-3
  • links: PTS
  • area: non-free
  • in suites: hamm, potato, slink
  • size: 692 kB
  • ctags: 468
  • sloc: ansic: 3,619; makefile: 542; sh: 295
file content (21 lines) | stat: -rw-r--r-- 423 bytes parent folder | download | duplicates (24) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
 
#include "case.h"

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

  while (len > 0) {
    --len;
    x = *s++ - 'A';
    if (x <= 'Z' - 'A') x += 'a'; else x += 'A';
    y = *t++ - 'A';
    if (y <= 'Z' - 'A') y += 'a'; else y += 'A';
    if (x != y)
      return ((int)(unsigned int) x) - ((int)(unsigned int) y);
  }
  return 0;
}