[Numpy-discussion] use of the PyArray_SETITEM numpy method

Francesc Alted faltet at pytables.org
Wed Dec 22 05:11:17 EST 2010

A Wednesday 22 December 2010 10:55:30 Michel Dupront escrigué:
> Hello,
> Please somebody help me !
> I am really confused with all these void that I see everywhere.
> The documentation says:
> PyObject * PyArray_SETITEM(PyObject * arr, void* itemptr, PyObject*
> obj)
> I created a 1D array of doubles with PyArray_SimpleNew.
> Now I am in a loop of index i to feed my array with values.
> What should I give for itemptr ?

The pointer to your data indeed.  For example, if you declare your item 

double myitem

then, pass it as &myitem.

Francesc Alted

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