Python Random vs. Cython C Rand for Dice Rolls
Chris Angelico
rosuav at gmail.com
Sun Jun 7 14:53:24 EDT 2015
On Mon, Jun 8, 2015 at 4:40 AM, C.D. Reimer <chris at cdreimer.com> wrote:
> PS Z:\projects\programming\python\basic_games\fastdice> python
> test_fastdice.py
>
> TOTAL SPOTS NUMBER OF TIMES
>
> 2 1389911
>
> 3 2777722
>
> 4 4168248
>
> 5 5553632
>
> 6 6944907
>
> 7 8334670
>
> 8 6945597
>
> 9 5553557
>
> 10 4167485
>
> 11 2775806
>
> 12 1388465
>
> 1.65599989891
>
>
> I had to put the array definition outside of the function declaration, where
> it's automatically initialized to zero in the global space.
Yep, that's one valid way to force them all to zero (per C spec). And
now you're seeing reasonable values. The rand() function may not be
all that great, but it certainly isn't responsible for the bizarre
values you were seeing :)
ChrisA
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