note 40106 added to ref.gmp
| From: | richard-slater dot co dot uk at rn2 dot php dot net | Date: | Sun, 22 Feb 2004 06:03:59 +0000 |
| Subject: | note 40106 added to ref.gmp | ||
| Groups: | php.notes | ||
| Request: | Send a blank email to php-notes+get-65509@lists.php.net to get a copy of this message | ||
For those (like me) who are trying to do bit masking with very large numbers, here is a useful
function to do the work for you.
<?php
function isBitSet($bitMask, $bitMap)
{
return (bool) gmp_intval(gmp_div(gmp_and($bitMask, $bitMap),$bitMask));
}
?>
----
Manual Page -- http://www.php.net/manual/en/ref.gmp.php
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