[Cython] remaining open issues for 0.17

[Robert Bradshaw]

On Fri, Aug 10, 2012 at 12:10 PM, Stefan Behnel <stefan_ml at behnel.de> wrote:
> Robert Bradshaw, 10.08.2012 20:54:
>> OK, the problem boiled down to using 'b' or 'B' for the format string
>> for char rather than 'c'. See, e.g.
>> http://docs.python.org/library/array.html . I've pushed a fix at
>> https://github.com/robertwb/cython/commit/b0539cbc32c200a09b1fbddf2d6943e92aec2f3e
>> , but it'd be good to have another set of eyes with someone more
>> familiar with this code to be sure I didn't miss anything. It also
>> involved a lot of changes to the tests
>> https://github.com/robertwb/cython/commit/6bcc8fd8419e6e4079344788023029736610d5aa
>> so is not exactly backwards compatible, though perhaps more correct.
>
> That's unfortunate, but since it's a bug, it needs fixing.

Actually, this fix breaks numpy_test, and I'm not sure how to fix it
given that numpy has no notion of a "possibly signed char" (unless we
disallow using char/char* with numpy altogether, which is much more
extreme, or don't enforce that signs match for char, which is likely
more invasive). Ugh.

- Robert