Hi Fons, Many thanks for answering on a Sunday :) Did what you proposed, but now I get these error-messages during compilation: for ClassDefT it gives me: warning: friend declaration `class TBuffer & operator >>(class TBuffer &, class TAMMakeTestPartSurv<NUMBER,VALUE> *&)' warning: declares a non-template function (if this is not what you intended, make sure the function template has already been declared, and add <> after the function name here) and for ClassDef2T2 I get: use of class template `template <class NUMBER, class VALUE> TAMMakeTestPartSurv<NUMBER,VALUE>' as expression `NUMBER' was not declared in this scope `VALUE' was not declared in this scope and last but not least for ClassImp2T: ANSI C++ forbids declaration `ClassDef2T2' with no type initializer list being treated as compound expression syntax error before `(' Mmmh, I think it's just the first comma in the <> brackets used in the old version which makes all the trouble: ClassDefT(TB<T1,T2>, 1) ^ | trouble! Greetings from Munich, Michael On Sun, 4 Nov 2001, Fons Rademakers wrote: > Hi Michael, > > could you try: > > ClassDefT(TB,1) > } > ClassDef2T2(TB, P1, P2) > > the ClassImp2T and explicit instantiation look ok. > > Cheers, Fons. >
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