Hi Thomas, I forgot to comment on your TObjArray in one of my previous mails. Instead of creating/deleting this array for each event, I suggest -to declare a member in your TSelector derived class to point to this array. -Create the array ONCE in the BEGIN function. -Delete the array in Terminate. In ProcessCut, start with m_AnaJet_Particles->Delete(); This will be more efficient and will avoid the problem you are referring to. Rene Brun On Wed, 18 Jun 2003, Thomas Schoerner wrote: > Hello, > > a probably very simple question: > > Assume that in ProcessCut I create objects on the heap and have a cut > which is not always fulfilled: > > Bool_t AnaJet::ProcessCut(Int_t entry) > { > m_AnaJet_Particles_Lab = new TObjArray; > ... > ... > if(somecondition) return kFALSE; > ... > ... > return kTRUE; > } > > If I manage to get to ProcessFill, I can delete the object and have no > problem: > > void AnaJet::ProcessFill(Int_t entry) > { > ... > delete m_AnaJet_Particles_Lab; > ... > } > > BUt what if somecondition is not fulfilled and I do not get to > ProcessFill? How can I efficienctly delete the object so that only the > pointer remains and I can reallocate memory during the next event? > > Cheers, > > Thomas > >
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