[Numpy-discussion] quick C api array creation question

Charles سمير Doutriaux doutriaux1@llnl....
Wed Jul 15 18:58:56 CDT 2009


I think i can answer my own question

I need to return Py_BuildValue("(NNN)")

C.

On Jul 15, 2009, at 4:27 PM, Charles سمير Doutriaux wrote:

> Hi,
>
> I'm using a C api to create numpy array
>
> I create them in my C as follow:
>
>   np_ow = (PyArrayObject *)PyArray_SimpleNew(4, dims, NPY_DOUBLE);
>   np_osfc = (PyArrayObject *)PyArray_SimpleNew(3, dims, NPY_DOUBLE);
>   np_ospc = (PyArrayObject *)PyArray_SimpleNew(3, dims, NPY_DOUBLE);
>   PyArray_FILLWBYTE(np_ow,0);
>   PyArray_FILLWBYTE(np_osfc,0);
>   PyArray_FILLWBYTE(np_ospc,0);
> ...
>   return Py_BuildValue("OOO",np_ow,np_osfc,np_ospc);
>
> It seems to work and they get back nicely to the python, no problem
>
> The only "little" issue I have is that the memory is never released!
> And quickly my code runs out of memory
>
> Any pointer on what I'm doing wrong?
>
> Do I need a decref somewhere?
>
> C.
>
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