[Cython] Constant pointers not working

[Stefan Behnel]

Volker Mische, 08.04.2013 13:43:
> On 04/02/2013 07:20 PM, Volker Mische wrote:
>> On 03/22/2013 02:47 PM, Volker Mische wrote:
>>> Hi all,
>>>
>>> I was excited to see that 'const' is finally supported, but constant
>>> pointers are not. Here's an example with the corresponding error:
>>>
>>> Error compiling Cython file:
>>> ------------------------------------------------------------
>>> ...
>>> cdef extern int foo(const int *const bar)
>>>                                     ^
>>> ------------------------------------------------------------
>>>
>>> const.pxd:1:37: Expected ')', found 'bar'
>>
>> I tried to implement it myself, please let me know if that's the way to
>> go: https://github.com/cython/cython/pull/203
> 
> I revive that this thread as I did another change, that hasn't seen any
> review. I thought about waiting a few days, but then I read that the
> 0.19b1 was tagged and I would like to see this change merged before the
> final 0.19. Though I don't know if that's possible with Cython's release
> procedure.

The beta-cycle is there to get rid of bugs and find problems before the
release.


> The pull request is here: https://github.com/cython/cython/pull/204
> 
> With that one merged I got rid of all warnings I got when using a
> library that makes heavy use of consts.

Your change looks like a fix to me (i.e. should go in), but I'll leave it
to Robert to decide as he's written the 'const' support code.

Stefan