| 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 |
| 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 | |