On Fri, Mar 25, 2011 at 10:21 AM, Pauli Virtanen <[email protected]> wrote: > The buffer interface cannot be used to export the half-float types, since > the type is not specified in PEP 3118. Numpy cannot unilaterally add > nonstandard format codes to the spec. > > What can be done instead is exporting the half-float items (and any other > non-3118 types) as plain bytes. I think this is the way to go.
What about as uint16s? Won't plain bytes have endian issues? case NPY_HALF: if (_append_char(str, 'H')) return -1; break; Something like that? I am also still curious about where unit tests for things like this should go. > On the Cython side, you'd need to detect when you are working with Numpy > arrays, and get the half-float type information from the Numpy dtype > rather than from the exported buffer. Hrm, okay. I'll have to follow up with the Cython folks about that. I hope that my fears about that ending up being a sweeping change are unfounded (having already gone through and made the changes to unilaterally add support for 'e' buffer types, it seems like it's baked in; we'll see). :-/ Thanks, Eli _______________________________________________ NumPy-Discussion mailing list [email protected] http://mail.scipy.org/mailman/listinfo/numpy-discussion
