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Commit | Line | Data |
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252b5132 RH |
1 | /* bcmp |
2 | This function is in the public domain. */ | |
3 | ||
4 | /* | |
5 | ||
39423523 | 6 | @deftypefn Supplemental int bcmp (char *@var{x}, char *@var{y}, int @var{count}) |
252b5132 | 7 | |
39423523 | 8 | Compares the first @var{count} bytes of two areas of memory. Returns |
56056af5 DD |
9 | zero if they are the same, nonzero otherwise. Returns zero if |
10 | @var{count} is zero. A nonzero result only indicates a difference, | |
39423523 DD |
11 | it does not indicate any sorting order (say, by having a positive |
12 | result mean @var{x} sorts before @var{y}). | |
252b5132 | 13 | |
39423523 | 14 | @end deftypefn |
252b5132 RH |
15 | |
16 | */ | |
17 | ||
18 | ||
19 | int | |
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 |