[Cython] a quick fix for numpy.pxd, please review

[Dag Sverre Seljebotn]

Lisandro wrote:
> Dag, review this, perhaps I'm missing something.

Positive review (assuming the test_numpy.pyx testcase still runs of
course; I assume it will, but it is strange that it currently works
without a problem, as these are used in __getbuffer__ ...).

BTW obviously all the available functions/macros should be defined in that
pxd, I just didn't get around to it. Any patches improving numpy.pxd in
this area will be accepted without any discussion (as long as the pointer
types are got right).

> BTW, Did you notice that the 'return' type of the macro
> "PyArray_ITEMSIZE" is not 'Py_ssize_t' but 'int' (at least in
> numpy-1.2.0)??. Should this be fixed?

Please do. It looks nicer (though it doesn't really matter for non-pointer
types, as it is C which is going to do the real typechecking in this case;
Cython only needs to know int vs. float and signed vs. unsigned).

Dag Sverre