Re: rand(), mt_rand() and limits
| From: | Yasuo Ohgaki | Date: | Mon, 12 Jan 2015 00:32:55 +0000 |
| Subject: | Re: rand(), mt_rand() and limits | ||
| References: | 1 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-80394@lists.php.net to get a copy of this message | ||
Hi all,
On Mon, Jan 12, 2015 at 7:12 AM, Andrea Faulds <ajf@ajf.me> wrote:
> * Use a 64-bit random number generation algorithm on 64-bit platforms
> (or invoke the 32-bit generator twice)
Comment for those who does not know 64 bit version of MT rand, please read
http://www.math.sci.hiroshima-u.ac.jp/~m-mat/MT/emt64.html
With this algorithm, 32bit and 64bit machines get different random number
with the same seed.
Regards,
--
Yasuo Ohgaki
yohgaki@ohgaki.net