[dune-functions] interface check for GridViewFunction

[Carsten Gräser]

Am 19.09.2015 um 23:40 schrieb Christian Engwer:
> Dear all,
> 
> I lost track... how do I test, whether my implementation fulfills the
> GridViewFunction interface?

There's no dedicated check for GridViewFunctions. But you can use the
concept check for grid functions wrt to the GridViewEntitySet. Assume
that you have given types Function/Range/GridView you can use

 using Coordinate = GridView::Codim<0> ::Geometry::GlobalCoordinate;
 using Signature = Range(Coordinate);
 using EntitySet = Dune::Functions::GridViewEntitySet<GridView, 0>;
 bool isGridViewFunction
        = Dune::Functions::Concept::isGridFunction<Function, Signature, EntitySet>();

Maybe I'll add this as a shortcut to functionconcepts.

Best,
Carsten

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