dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Fri, Jan 16, 2009 at 09:02:29AM +0100, 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? 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!

Very nice and impressive work!

-- 
Anders

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