[Dune] Remark BartonNackman Interface Check.

[Robert Kloefkorn]

Hi Oli,

> How about introducing a new preprocessor flag to switch the check?
> That new flag would then only be set by the grid tests.  In my
> opinion it is sufficient if the grid tests call the check.

sounds great. Maybe something like DUNE_APPLY_INTERFACE_CHECK.

Cheers

R

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  Robert Klöfkorn           <robertk at mathematik.uni-freiburg.de>

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