dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Thu, Mar 10, 2011 at 04:20:51PM -0800, Johan Hake wrote:
> 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...

ok, thanks.

--
Anders