[ODE] dRandInt Crash Fix

[George Birbilis]

it makes one wonder why there's not some CPU instruction to return a random 
number (or is there one at Intel CPUs?). If it also had some engine to 
return really random numbers (using noise from the system [heat etc.])

-----
George Birbilis (birbilis at kagi.com)
Microsoft Most Valuable Professional
MVP J# for 2004 & 2005
http://www.kagi.com/birbilis
QuickTime, Delphi, ActiveX, .NET, IPC
--------------
----- Original Message ----- 
From: "Adam D. Moss" <adam at gimp.org>
To: "ode" <ODE at q12.org>
Sent: Wednesday, June 22, 2005 1:50 PM
Subject: Re: [ODE] dRandInt Crash Fix


> Adam D. Moss wrote:
>> I think that what it intends to do is:
>>
>> int dRandInt (int n)
>> {
>>   double a = double(n-1) / 4294967296.0;
>
> Forget that, it's kinda bogus.  However, it leaves your
> strange problem unexplained.  Are you using D3D and letting
> it lower the x87 internal accuracy?
>
> Meanwhile I think I'm happier with the xor-folding int
> implementation anyway...
>
> --adam
> -- 
> Adam D. Moss   -   adam at gimp.org
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