[petsc-dev] MatNullSpaceDestroy

[Lisandro Dalcin]

On 24 March 2011 13:43, Barry Smith <bsmith at mcs.anl.gov> wrote:
>
>> o now MatNullSpace instances cannot be freed with
>> PetscObjectDestroy()... This change broke bad petsc4py Python+PETSc
>> refcounting management. BTW, PetscObjectDestroy() does not take a
>> pointer... And IMHO PetscHeaderDestroy should also take a pointer...
>
>   Thank you for the explanation. petsc4py relies on PetscObjectDestroy() which won't work when some destroys take & and some don't. I didn't know you needed PetscObjectDestroy() to always work.
>

Well, long ago you said "this is polymorphism ..."  :-)

>
>   The correction solution is to switch to using the & in all destroys. It sounds like this has to happen sooner rather than later.
>

OK. Thanks!

-- 
Lisandro Dalcin
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