#22988 [Asn->Csd]: I'm feeling lucky - rand() bug

ID: 22988 Updated by: pollita@php.net Reported By: vakmajom at freemail dot hu -Status: Assigned +Status: Closed Bug Type: Documentation problem Operating System: Windows 2000 PHP Version: 4.3.2RC1 Assigned To: pollita New Comment: This bug has been fixed in CVS. In case this was a PHP problem, snapshots of the sources are packaged every three hours; this change will be in the next snapshot. You can grab the snapshot at http://snaps.php.net/. In case this was a documentation problem, the fix will show up soon at http://www.php.net/manual/. In case this was a PHP.net website problem, the change will show up on the PHP.net site and on the mirror sites in short time. Thank you for the report, and for helping us make PHP better. Previous Comments: ------------------------------------------------------------------------ [2003-05-11 08:36:09] moriyoshi@php.net changing to the correct status ------------------------------------------------------------------------ [2003-05-06 14:29:26] vakmajom at freemail dot hu Why it is a Windows bug? Because RAND_MAX is not 2147483647? Alrigth then. But the documentation should also mention that you must not call rand(min, max) or mt_rand(min, max) if (max-min > 2147483647) (on unix systems you get a Warning message (tested with PHP 4.1.0), but on Windows systems mt_rand(-2147483648, 2147483647) simply returns -2147483648, without any warning message - as I explained. ------------------------------------------------------------------------ [2003-04-26 16:56:07] pollita@php.net Actually the docs should mention this. Reclassifying and opening back up. ------------------------------------------------------------------------ [2003-04-26 16:55:38] pollita@php.net After discussion it looks like PHP won't be getting into the business of fixing windows bugs :) As you suggested the best bet is to stick with mt_rand() to get the resulution you're looking for. ------------------------------------------------------------------------ [2003-04-18 00:03:55] pollita@php.net I can see where you were going with that, unfortunately it has the unexpected result of simply chaning the bug so that only *odd* numbers get returned.... I'm still thinking over this one and hope you give it some more thought too.... :) ------------------------------------------------------------------------ The remainder of the comments for this report are too long. To view the rest of the comments, please view the bug report online at http://bugs.php.net/22988 -- Edit this bug report at http://bugs.php.net/?id=22988&edit=1