Re: Best way to get a non-repeating random number?
Re: Best way to get a non-repeating random number?
- Subject: Re: Best way to get a non-repeating random number?
- From: "Eric E. Dolecki" <email@hidden>
- Date: Tue, 14 Apr 2009 12:24:46 -0400
to get back to my original question I'm not just doing this:
int tmp = (arc4random())+1;
while (tmp == activeTarget) {
tmp = (arc4random())+1;
}
activeTarget = tmp;
On Tue, Apr 14, 2009 at 11:32 AM, Michael Ash <email@hidden> wrote:
> On Tue, Apr 14, 2009 at 6:56 AM, Jean-Daniel Dupas
> <email@hidden> wrote:
> > reading /dev/random is currently the best way to generate random number
> on
> > OS X.
> >
> > http://lists.apple.com/archives/apple-cdsa/2009/Mar/msg00077.html
>
> Careful with these blanket pronouncements. The best way depends on
> your goals, as is almost always the case in programming. For example,
> /dev/random really stinks if you want a repeatable sequence, and is a
> poor choice if you value speed over the quality of the random numbers.
>
> Mike
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