Fix the copying of TF2 or TF3 objects in TEfficiency::Fit

cms-sw · Mar 17, 2023 · 5858905 · 5858905
1 parent b08941f
commit 5858905
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/hist/hist/src/TEfficiency.cxx b/hist/hist/src/TEfficiency.cxx
@@ -2373,7 +2373,8 @@ TFitResultPtr TEfficiency::Fit(TF1* f1,Option_t* opt)
    TFitResultPtr result = Fitter.Fit(f1,option.Data());
 
    //create copy which is appended to the list
-   TF1* pFunc = new TF1(*f1);
+   auto pFunc = static_cast<TF1*>(f1->IsA()->New());
+   f1->Copy(*pFunc);
 
    if(bDeleteOld) {
       TIter next(fFunctions);