Hi Thomas, the copy ctor and assignment operators for all collections (except copy ctor for TObjArray) have been made private to prevent accidenttal anbd erroreous use of these operators. It would be very easy to waste huge amount of resources by allowing collections to be passed by value or it could cause all kind of multiple deletion or memory leak problems. To quickly and explicitely copy a collection use TCollection::AddAll() for example. Cheers, Fons. Thomas Bretz wrote: > > Hello, > > is there a reason, that all inherited members from TCollection (except > TOrdCollection) does neither have a copy constructor, nor a =operator? > > This makes the following unpossible: > > TList CreateListOfSomething() > { > TList list; > list.Add(new ...); > list.Add(new ...); > return list; > } > > TList listofsomething = CreateListOfSomething(); > listofsomething->SetOwner(); > > Regards, > Thomas. -- Org: CERN, European Laboratory for Particle Physics. Mail: 1211 Geneve 23, Switzerland E-Mail: Fons.Rademakers@cern.ch Phone: +41 22 7679248 WWW: http://root.cern.ch/~rdm/ Fax: +41 22 7679480
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