dolfin team mailing list archive

["Johannes Ring" <johannr@xxxxxxxxx>]

On Fri, January 16, 2009 09:02, Johan Hake wrote:
> Hello!
>
> After I added shared_ptr support for PyDOLFIN things have stabelized, I
> think... but there are some issues you should be aware of. We need swig
> version 1.3.35 or higher. This version comes with ubuntu 08.10 (intrepid).
> Johannes are going to compile the newest swig, 1.3.37 and put it in our
> apt
> repositories. I assume this also will be done for ubuntu 08.10?

Yes, I can do that.

Johannes

> This last
> version came this week, and it comes with a fix for std::tr1::shared_ptr,
> making it possible to change back to tr1.
>
> The nice thing with shared_ptrs in PyDOLFIN is that we no longer have to
> keep
> any references for instances we do not want to get garbage collected in
> python, as swig now use a shared_ptr to store the underlying c++ instance.
> And of course it interact better with the c++ library which now use
> shared_ptrs quite heavily.
>
> Adding shared_ptr support for additional classes in PyDOLFIN is done in
> the
> file
>
>    dolfin/swig/dolfin_shared_ptr_classes.i
>
> It should be straight forward. For now these classes are stored using
> shared_ptrs:
>
>    all ufc classes (this is done in ufc/ffc, not in DOLFIN)
>    Form, DofMap
>    Mesh, and all built in Meshes.
>    Function, and for all built in Functions
>
> To be able to run your python code again you also have to run
> instant-clean.
>
> Please report any problems!
>
>
> Johan
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