dolfin team mailing list archive

["Garth N. Wells" <gnw20@xxxxxxxxx>]

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.

Garth

> --
> Anders