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Re: [gnugo-devel] rand() % n

From: Gunnar Farnebäck
Subject: Re: [gnugo-devel] rand() % n
Date: Fri, 14 May 2004 00:09:14 +0200
User-agent: EMH/1.14.1 SEMI/1.14.3 (Ushinoya) FLIM/1.14.2 (Yagi-Nishiguchi) APEL/10.3 Emacs/21.3 (sparc-sun-solaris2.9) MULE/5.0 (SAKAKI)

David wrote:
> I was really wondering why so much time was being spent worrying
> about the low order bits when it does seem that most any decent RNG
> (and perhaps even a known poor one) would be far better than this
> application would require.

You'd have to ask Douglas about that. :-)

> It was not my intent to suggest the use of another RNG, unless the
> overflow problem really is an issue.

The overflow problem only exists in the proposed patch, not in the
current code. I see no reason to change the latter. Except for
everything else introducing floating point computations in the random
number generation would add another potential source for platform


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