[Numpy-discussion] size_t or npy_intp?

[Charles R Harris]

On Tue, Jul 27, 2010 at 7:08 AM, Francesc Alted <faltet at pytables.org> wrote:

> Hi,
>
> I'm a bit confused on which datatype should I use when referring to NumPy
> ndarray lengths.  In one hand I'd use `size_t` that is the canonical way to
> refer to lengths of memory blocks.  In the other hand, `npy_intp` seems the
> standard data type used in NumPy for this.
>
>
They have different ranges, npy_intp is signed and in later versions of
Python is the same as Py_ssize_t, while size_t is unsigned. It would be a
bad idea to mix the two.

Chuck
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.python.org/pipermail/numpy-discussion/attachments/20100727/f56e83cc/attachment.html>