[dune-pdelab] ISTLBlockVectorContainer::size() method

[Christian Engwer]

Hi,

> It appears that ISTLBlockVectorContainer has no size method,
> although it wraps around BlockVector, which does.
> Instead it wraps BlockVector's N() method, which does exactly the same
> thing(currently) as size().
> Please add the size() method to ISTLBlockVectorContainer,
> and possibly deprecate N() method in BlockVector, unless it serves some purpose.

a) the interface is what it is ;-)
b) the size method is not exported on purpose. The
   ISTLBlockVectorContainer should encapsulate the BlockVector, and
   not extend it. It does provide a very different semantic. If you
   want to access methods of the BlockVector, you can access the
   encapsulated block vector and then call the method.

Christian