[Numpy-discussion] int 'up'casted to uint

Travis Oliphant oliphant.travis at ieee.org
Tue Jul 11 11:03:38 CDT 2006


Pau Gargallo wrote:
> hi,
>
> looking at the upcasting table at
> http://www.scipy.org/Tentative_NumPy_Tutorial#head-4c1d53fe504adc97baf27b65513b4b97586a4fc5
> I saw that int's are sometimes casted to uint's.
>
> In [3]: a = array([3],int16)
> In [5]: b = array([4],uint32)
> In [7]: a+b
> Out[7]: array([7], dtype=uint32)
>
> is that intended?
>   
It's a bug.  The result should be int64.  I've fixed it in SVN.

-Travis





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