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Message #21925
Re: Passing MeshFunction as shared_ptr
On Thursday March 10 2011 16:17:49 Anders Logg wrote:
> On Fri, Mar 11, 2011 at 12:53:16AM +0100, Anders Logg wrote:
> > On Thu, Mar 10, 2011 at 11:39:52PM +0000, Garth N. Wells wrote:
> > > On 10/03/11 23:38, Anders Logg wrote:
> > > > I'm having trouble passing a MeshFunction from the Python interface
> > > > to
> > > >
> > > > the following function in the C++ Form class:
> > > > void set_cell_domains(boost::shared_ptr<const MeshFunction<uint> >
> > > > cell_domains);
> > >
> > > Change this to
> > >
> > > void set_cell_domains(boost::shared_ptr<const MeshFunction<unsigned
> > >
> > > int> > cell_domains);
> > >
> > > (uint -> unsigned int)
> >
> > Same problem (but with uint --> unsigned int):
> >
> > TypeError: in method 'Form_set_cell_domains', argument 2 of type
> > 'boost::shared_ptr< dolfin::MeshFunction< unsigned int > const >'
> >
> > Printing out type() for the argument just prior to the call gives
> >
> > <class 'dolfin.cpp.MeshFunctionUInt'>
> >
> > So somehow it is not recognized that dolfin.cpp.MeshFunctionUint can
> > be used as a 'boost::shared_ptr< dolfin::MeshFunction< unsigned int >
> > const >.
>
> I have temporarily added pure pointer versions of the set_foo_domains
> functions in the Form class. These work fine from Python. These should
> be removed as soon as we figure out how to pass the arguments as
> shared ptrs.
I need some time to get into the changes Garth has done. If it is not fixed by
then I can take a look at it, weekendish...
Johan
> --
> Anders
>
>
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