On Tue, Jun 07, 2011 at 09:29:45AM -0400, Christian Stump wrote:
> dict_addition and dict_linear_combination expect all values living in
> a common ring. So testing val == zero should not involve coercion,
> should it?
Good point: the coercion code will instantly delegate the work to
equality test. I don't remember: do we have a cython equality test for
CombinatorialFreeModule? Isn't this going to call a python method at
the end of the day, just as is_zero?
> > for_removal = (key for key in D if D[key] == zero)
>
> cython doesn't yet support iterators
Arr, right. Well, that's comming soon.
> calling D.keys() tents to construct a much longer list than [key for
> key in D if D[key] == zero].
Sorry, I indeed meant:
for key in D:
if D[key] == zero:
del D[key]
> Anyway, I will benchmark the differences...
Thanks!
Cheers,
Nicolas
--
Nicolas M. Thiéry "Isil" <nthi...@users.sf.net>
http://Nicolas.Thiery.name/
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