RE: [ROOT] Problem with TTree::BuildIndex

From: Philippe Canal (pcanal@fnal.gov)
Date: Mon Aug 25 2003 - 23:25:39 MEST


Hi Heather,

A fix for the underlying ROOT problem (nested TClonesArrays when the top one
is not split and the library is not present) will be upload in the ROOT CVS
very shortly.

Cheers,
Philippe.

-----Original Message-----
From: owner-roottalk@pcroot.cern.ch
[mailto:owner-roottalk@pcroot.cern.ch]On Behalf Of Heather Arrighi
Sent: Monday, August 25, 2003 10:57 AM
To: roottalk@pcroot.cern.ch
Subject: [ROOT] Problem with TTree::BuildIndex


Hi,
I'm trying to use TTree::BuildIndex with ROOT 3.04.02 on both Windows XP
and Redhat Linux 7.2.  I have run into a problem - I am trying to build
an index using run number and event id.  I have 3 types of ROOT files - I
can run BuildIndex just fine on 2 of the 3 types.  In the 3rd case, I
receive a segmentation violation.  In the tests I have done, I have only
14 events in my files.
Are there any known problems with TTree::BuildIndex?  I did a search on
roottalk and found little discussion on this method.

I have an example ROOT file available via anonymous ftp:
ftp-glast.slac.stanford.edu
cd glast.u05/examples
This directory contains 2 files: digi.root and a text file showing the
results I get when I attempt to run TTree::BuildIndex.

Thanks,
Heather



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