note 83004 added to function.crc32
| From: | bbo at osu1 dot php dot net | Date: | Tue, 06 May 2008 12:20:15 +0000 |
| Subject: | note 83004 added to function.crc32 | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-139093@lists.php.net to get a copy of this message | ||
unsigned 32 .. correct gf2_matrix_times is:
function gf2_matrix_times($mat, $vec)
{
$sum=0;
$i=0;
while ($vec) {
if ($vec & 1) {
$sum ^= $mat[$i];
}
$vec>>= 1;
$vec &= 0x7fffffff;
$i++;
}
return $sum;
}
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