improved matrix_type check

[David Bateman]

Jaroslav Hajek wrote:
> attached is the improved matrix_type check remade against newest
> mainstream repo.
> Compiles and make check's.
> I've noticed that float sparse matrices are not supported. Will they?

I hesitated to do that, but I don't see why not to add that except for
the work it implies. It seems to me that float sparse matrices are
probably more useful than float matrices.

D.





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