[ROOT] About the merge for root file which include the trees.

From: dwkim (dwkim@pha.jhu.edu)
Date: Mon Apr 21 2003 - 16:16:27 MEST 

Hello!
My name is dongwook kim.
I tried merge the root files which include the histograms and a tree(tree name=JetMet, Brach name=Event, subBranch names=TObject, EventHeader, .....) as follow as below,

{
gSystem.Load($ROOTSYS/test/libEvent.so");
Event *event = new Event();
TChain ch("JetMet");
ch.SetBranchAddress("event",&event);
ch.Add("wh_bbmn_0_0_0.root");
ch.Add("wh_bbmn_250_0_0.root");
ch.Merge("test_merge.root");
}

Then I met the error message as below,
Error in <TObjArray:At>:index -16662 out of bounds (size:13, this: 0x087e5b58)
Error in <TObjArray::AddAt>: out of bounds at 16662 in 87e5b58
*** Break *** segmentation violation
Generating stact trace ...
.........

May I know what I had miss for the merging root files?
Above error is happen with example files(event.root, event40.root, event50.root, ...), too.

In my best regards!
KDW

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