[Numpy-discussion] bug report ?

Revaz Yves yves.revaz@obspm...
Wed Mar 5 08:13:45 CST 2008


Matthieu Brucher wrote:
> Hi,
>
> What type is pos->dimensions in your case ? It may be long (64bits 
> long) instead of the expected int (32bits) or something like that ?
>
yes,
pos->dimensions is a 64bits long
while PyArray_FromDims expects 32bits int.

Why is it so ?



> Matthieu
>
> 2008/2/8, Yves Revaz <yves.revaz@obspm.fr <mailto:yves.revaz@obspm.fr>>:
>
>
>     Dear list,
>
>     I'm using old numarray C api with numpy.
>     It seems that there is a bug when using the PyArray_FromDims function.
>
>     for example, if I define :
>     acc = (PyArrayObject *)
>     PyArray_FromDims(pos->nd,pos->dimensions,pos->descr->type_num);
>
>     where pos is PyArrayObject *pos;  (3x3 array)
>
>     when using return PyArray_Return(acc);
>     I get
>     array([], shape=(3, 0), dtype=float32)
>
>
>     It is possible to make everything works if I use the following lines
>     instead :
>     int   ld[2];
>     ld[0]=pos->dimensions[0];
>     ld[1]=pos->dimensions[1];
>     acc = (PyArrayObject *)
>     PyArray_FromDims(pos->nd,ld,pos->descr->type_num);
>
>     So, the problem comes from the pos->dimensions.
>
>
>     Is it a known bug ?
>
>
>     (I'm working on a linux 64bits machine.)
>
>
>     Cheers,
>
>
>     yves
>
>
>
>
>
>
>
>
>     _______________________________________________
>     Numpy-discussion mailing list
>     Numpy-discussion@scipy.org <mailto:Numpy-discussion@scipy.org>
>     http://projects.scipy.org/mailman/listinfo/numpy-discussion
>
>
>
>
> -- 
> French PhD student
> Website : http://matthieu-brucher.developpez.com/
> Blogs : http://matt.eifelle.com and http://blog.developpez.com/?blog=92
> LinkedIn : http://www.linkedin.com/in/matthieubrucher
> ------------------------------------------------------------------------
>
> _______________________________________________
> Numpy-discussion mailing list
> Numpy-discussion@scipy.org
> http://projects.scipy.org/mailman/listinfo/numpy-discussion
>   



More information about the Numpy-discussion mailing list