On 8/11/16 10:13 AM, Lauri Kenttä wrote:
Hello,
Any thoughts about supporting a longer seed array for mt_srand? Does
anyone really need it? Should it be in mt_srand or mt_srand_array?
See: https://bugs.php.net/bug.php?id=32145
The second question is controversial.
People have asserted that nobody does statistical work in PHP, or that
if they do it's not a "legitimate" use of PHP. There were demands for
evidence that anyone has ever legitimately needed to seed an RNG in PHP.
I disagree. #32145 in itself is sufficient for me.
For statistical work 2^32 starting positions is not enough. MT's period
is Vast, like Dennett's Vast with a capital V. Nobody needs *that* much
but if MT is what we've got then it seems reasonable to allow access to
more of it.
mt_srand() will work. But what would be in the array? Integers from
which the upper 32 bits, if they exist, are discarded?
Tom
--
PHP Internals - PHP Runtime Development Mailing List
To unsubscribe, visit: http://www.php.net/unsub.php
