Sudoku Py / C++11 / D?

[Timon Gehr]

On 08/17/2012 01:13 AM, maarten van damme wrote:
> great, going to play around with it tomorrow.
> Caching the possibilities is going to look really ugly but you're
> right, it's going to give quiet a boost in performance.
>
> I'm also going to format your source code a bit more and see if I can
> follow it's logic as it seems to be way more efficient. (although
> compilation is failing here, I'm running dmd 2.059 and it gives "can't
> stride on chunks!(short))

Works for me both with DMD 2.060 and GDC with the 2.059 front end.

>
> would using short or bytes increase performance compared to integers?

Using less memory sometimes increases performance, but here it is not 
significant.

> if so, why did you use shorts instead of bytes?

Because I need 9 bits per entry to keep track of all the combinations
of possibilities.