Hello, i got a class X which contains a TH2D histogram. class X : public TObject { private: TH2D kMap; (...) } I want to have a function Add, which works as TH1::Add(TH1,Double_t), so: X *obj1,*obj2; double x=2; obj1->Add(obj2,2); I've written a function Add (public in class X): void X::Add(const X *s, double d) { kMap.Add(s->kMap,d); } compilator says: no matching function to call TH2D::Add... and in fact there is no such function in TH2D (only in TH1)... Anybody has a proposition how to proceed? Best regards, Mariusz Sapinski
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