[GRASS-dev] r.random still broken on Mac

[William Kyngesburye]

On Sep 30, 2006, at 2:46 AM, Glynn Clements wrote:

>
> William Kyngesburye wrote:
>
>> I just did a quick test - removed __APPLE__ from r.random, so it uses
>> the extern lrand48.  I now get a random distribution.
>
> So it's the fake lrand48() that's causing problems?
>
> Doh.
>
...

> Can you try this instead:
>
> #define lrand48() (((long) rand() ^ ((long) rand() << 16)) &  
> 0x7FFFFFFF)
>
That works.

So, was there some other reason to use the fake lrand48() on OS X,  
since the real one seems to work?

-----
William Kyngesburye <kyngchaos at kyngchaos.com>
http://www.kyngchaos.com/

"Mon Dieu! but they are all alike.  Cheating, murdering, lying,  
fighting, and all for things that the beasts of the jungle would not  
deign to possess - money to purchase the effeminate pleasures of  
weaklings.  And yet withal bound down by silly customs that make them  
slaves to their unhappy lot while firm in the belief that they be the  
lords of creation enjoying the only real pleasures of existence....

- the wisdom of Tarzan


-----
William Kyngesburye <kyngchaos at kyngchaos.com>
http://www.kyngchaos.com/

All generalizations are dangerous, even this one.


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