[] overload for matrix

[Martin v. Loewis]

> I have a question.

Please understand that this list is primarily for people having
problems with GCC, not for people that have problems with the C or C++
languages. There are better places where people can ask C++ questions,
such as the comp.lang.c++.moderated newsgroup.

> Is this possibel or not ???

No, that's not possible. There is a standard solution to that problem,
which you'll find in the literature; I don't have the time right now
to outline it.

Regards,
Martin