note 83004 deleted from function.crc32 by danbrown
| From: | danbrown@php.net | Date: | Thu, 06 Oct 2011 21:25:47 +0000 |
| Subject: | note 83004 deleted from function.crc32 by danbrown | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-183682@lists.php.net to get a copy of this message | ||
Note Submitter: bbo
----
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;
}