Hi Rene, I have a somewhat related question: I'd like to delete all histograms IN MEMORY in the working directory. Do I achieve that with: delete gDirectory()->GetList(); or am I causing some collateral damage??? Note that I do NOT want to delete histograms and ntuples that are written on the file. Rene Brun wrote: > > Hi Simon, > > In general, Use the form > delete inheritedclass; > > If your class is a ROOT collection, like TList, TObjArray, you can do: > mycollection->Delete(); //to delete all objects in the collection; > delete mycollection; // to delete the empty collection. > > Note that if the collection has been declared to be the owner with > mycollection->SetOwner(); > it is sufficient to do: > delete mycollection; //all owned objects will be automatically deleted. > > See also the chapter on Object Ownership in the Users Guide. > > Rene Brun > > Simon Dean wrote: > > > > Hi there, > > > > Could someone please explain to me the subtle nuances of destructors in > > classes which inherit from TObject? I'm having problems with crashes > > caused by such destructors, although I think the problem may be due to > > delete statements inside them which refer to other classes that inherit > > from TObject. > > > > What is TObject->Delete() and what is it used for? Would I do: > > > > delete inheritedclass > > or > > inheritedclass->Delete() > > > > for cleaning up memory. > > > > cheers, > > > > Simon -- ======================================================================== Vuko Brigljevic | Mail : SLAC, Mail Stop 41 Lawrence Livermore National Laboratory | P.O. Box 4349, Stanford Nuclear and Particle Physics Division | CA 94309, USA | SLAC-Office : B280- room 143 Member of the BaBar Collaboration | Phone : +1-650-926 8512 <vuko@slac.stanford.edu> <http://www.slac.stanford.edu/~vuko> ========================================================================
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