RE: [ROOT] Crashes when using TNtuple's friend

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Hi Javier,

I can not reproduce your problem.  Can you send me your macro?
Which version of ROOT are you using?

Thanks,
Philippe.

-----Original Message-----
From: owner-roottalk@pcroot.cern.ch
[mailto:owner-roottalk@pcroot.cern.ch]On Behalf Of
jgonzalez@neuub0.physics.neu.edu
Sent: Thursday, November 07, 2002 3:46 PM
To: roottalk@pcroot.cern.ch
Subject: [ROOT] Crashes when using TNtuple's friend



Hi

I get a segmentation fault whenever I use TNtuple's friends. It crashes
when it's closing the file. If I use two loops (one for each n-tuple) then
it works, but unfortunatelly I can't do that allways. To open the file I
used just:
TFile* theFile = new TFile(argv[1]);

The only changes I make are:
1)
theNtuple->AddFriend("DecayTime");
instead of:
TNtuple* timeNtuple = (TNtuple*) gROOT->FindObject("DecayTime");
2)
the branch addresses:
theNtuple->SetBranchAddress("DecayTime.time1",&time1);
instead of
timeNtuple->SetBranchAddress("time1",&time1);
3)
and then one loop over 'theNtuple' instead of one over each n-tuple. 

Either way it does the calculation, but...
Why does it crash in one case and not in the other?


Javier

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