dolfin team mailing list archive

[Anders Logg <logg@xxxxxxxxx>]

On Tue, Feb 08, 2011 at 05:30:07PM +0000, Garth N. Wells wrote:
>
>
> On 08/02/11 17:09, Anders Logg wrote:
> > On Tue, Feb 08, 2011 at 05:07:10PM +0000, Garth N. Wells wrote:
> >>
> >>
> >> On 08/02/11 16:49, Anders Logg wrote:
> >>> On Tue, Feb 08, 2011 at 03:45:27PM +0000, Garth N. Wells wrote:
> >>>> Do we have a short-cut for defining the entire boundary of a domain so
> >>>> that it can be used in applying a Dirichlet bc on the entire boundary?
> >>>
> >>> Yes, DomainBoundary:
> >>>
> >>> bc = DirichletBC(V, g, DomainBoundary())
> >>>
> >>
> >> Thanks.
> >>
> >> What about from C++?
> >
> > It should work with
> >
> >   DomainBoundary boundary;
> >   DirichletBC bc(V, G, boundary);
> >
> > Possibly also with
> >
> >   DirichletBC bc(V, G, DomainBoundary());
> >
> > I think the above will compile but I'm not sure what it does. Some C++
> > expert please enlighten me.
> >
>
> I expect that it will depend on whether the DirichletBC interface is
> pass-by-value or pass-be reference.

It's pass-by-reference so most likely that will break.

--
Anders