1 /* bcmp
2 This function is in the public domain. */
3
4 /*
5
6 @deftypefn Supplemental int bcmp (char *@var{x}, char *@var{y}, int @var{count})
7
8 Compares the first @var{count} bytes of two areas of memory. Returns
9 zero if they are the same, nonzero otherwise. Returns zero if
10 @var{count} is zero. A nonzero result only indicates a difference,
11 it does not indicate any sorting order (say, by having a positive
12 result mean @var{x} sorts before @var{y}).
13
14 @end deftypefn
15
16 */
17
18
19 int
bcmp(from,to,count)20 bcmp (from, to, count)
21 char *from, *to;
22 int count;
23 {
24 int rtnval = 0;
25
26 while (count-- > 0)
27 {
28 if (*from++ != *to++)
29 {
30 rtnval = 1;
31 break;
32 }
33 }
34 return (rtnval);
35 }
36
37