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Subject: Re: question about optimizing code - puh Heiner is fast!

Author: Dieter Buerssner

Date: 13:35:33 07/08/03

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On July 08, 2003 at 15:30:06, Reinhard Scharnagl wrote:

>On July 08, 2003 at 15:14:57, Dieter Buerssner wrote:
>>Or one could take 4 random numbers and combine them as
>>
>>  r1 & r2 & (r3|r4)

>As far as I know most only positive numbers will be
>generated, therefore this smart idea will not always do,
>because the MSB is obviously cleared then.

All library rand() will only return positive signed integers. I meant a PRNG
included in source code. Most I know (I have a collection of over 50) return 32
bit numbers. One 2 line example, I showed recently in
http://www.talkchess.com/forums/1/message.html?304949

That one is really not good, but good enough for such testing.
Using a PRNG in source code has also the benefit, that numbers can be reproduced
by people with a different compiler.

Regards,
Dieter



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