Re: [RFC] RNG fixes
| From: | Rowan Collins | Date: | Thu, 23 Jun 2016 14:09:12 +0000 |
| Subject: | Re: [RFC] RNG fixes | ||
| References: | 1 2 3 4 5 6 7 8 9 10 | Groups: | php.internals |
| Request: | Send a blank email to internals+get-94227@lists.php.net to get a copy of this message | ||
On 23/06/2016 14:57, Nikita Popov wrote:
Whatever we do, please maintain the invariant that mt_rand() >= rand() in terms of quality. I recommend doing this by making mt_rand() == rand().The relationship that I feel is poorly defined at the moment is random_int() vs mt_rand(). There isn't actually anything in the manual to say when *not* to use it. So the implication seems to be random_int()
mt_rand() > rand().I would prefer something like random_fast_int() == mt_rand() == rand(), with clear documentation on when to use random_fast_int() instead of random_int(), and a note on the others that "since 7.2, mt_rand() is an alias for random_fast_int()" etc. (Not wedded to the name random_fast_int, we can bikeshed that later.) Regards, -- Rowan Collins [IMSoP]