[Dune-devel] [Dune-Commit] dune-istl r1656 - trunk/dune/istl

[Christoph Grüninger]

Hi Jö,
Clang complains about mixing struct and class with a warning. Since 
Clang 3.0 compiles Dune for me and I think other people are using it, 
too. Microsoft's Visual-C++ 2008 seems to warn about this issue, too.

I am not that C++-savvy to answer your question. But other people who 
are tend to see them as interchangeable, see for example [1].

> In particular for friend declarations in templates you sometimes don't know
> whether the friend class has been defined with 'class' or 'struct'.

But you need at least a header with a forward declaration and there you 
could see whether it's a class or a struct.

Bye
Christoph

[1] http://stackoverflow.com/questions/4866425/mixing-class-and-struct

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