Many thanks! Yea! Yep, that worked. I obviously didn't read the documentation carefully enough: "clonesaddress is the address of a pointer to a TClonesArray." - Topher Philippe Canal wrote: > Hi Topher, > > The issue is that TTree::Branch expect the address of a pointer to an > object. > > In your example: > TClonesArray ccaa("CCABit", 24*24); // maximum capacity is 24*24 > .... > tree->Branch("CCABitArray", &ccaa); // !!GIVES ME A SEGMENTATION > VIOLATION!! > > You are passing the address of an object. > > One way to correct the problem is: > > TClonesArray *ccaa = new TClonesArray("CCABit", 24*24); // maximum > capacity is 24*24 > .... > tree->Branch("CCABitArray", &ccaa); // !!GIVES ME A SEGMENTATION > VIOLATION!! > > Cheers, > Philippe. > > -----Original Message----- > From: owner-roottalk@pcroot.cern.ch > [mailto:owner-roottalk@pcroot.cern.ch]On Behalf Of Topher Cawlfield > Sent: Wednesday, April 09, 2003 10:19 AM > To: roottalk@pcroot.cern.ch > Subject: Re: [ROOT] seg. violation in TTree::Branch > > > Oh, no! Here it is. > > I'll also post it on the web in case that helps... > http://www.lns.cornell.edu/~topher/simpleTree.tar.gz > > Thanks for your help with the HTML documentation. I'll look into the > pointer initialization issue, but I don't think that's the problem. My > class that I'm storing in the list has no pointers, and I haven't even > created any instances by the time TTree::Branch is called. Maybe that's > the problem, but I don't see how. > > - Topher > > Rene Brun wrote: > >>Hi Topher, >> >>You forgot to attach your tar file. >> > >
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