Stéfan van der Walt wrote:
> Did this change recently?
>
> In [33]: np.__version__
> Out[33]: '1.1.0.dev5211'
>
> In [34]: np.minimum(np.uint8(164), np.uint64(12807)).dtype
> Out[34]: dtype('uint64')
>
> But yes, that looks like it should return a uint8.
>
This discussion is really moot unless a proposal for how to handle
different casting rules for different ufuncs is proposed. Right now,
the type-promotion rules are generic and do not depend on the ufunc only
on coercion rules for the mixed types.
One problem with a casting-rules-per-ufunc approach is that it makes it
harder to add new types and have them fit in to the casting structure
(which is currently possible now). Some mechanism for allowing the
types to plug-in to the per-ufunc rules would be needed.
These are not impossible things, just a bit of work and not on my
personal priority list.
-Travis
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