Hi,
I create a CloneTree with the code below (no selection applied) .
It seems OK, a new tree is created with the same number of entries
as the original file. However, when I re-run the code on the produced CloneTree,
the code crash after 18 events with following error message:
This file contains 2530 events
event number 0
...
event number 18
Error: C++ exception caught FILE:/tmp/7vWjCb_cint LINE:1
*** Interpreter error recovered ***
I hardly can understand this, since I am running the same code on
(supposed) identical Trees.
I am running root 3.05 under fermi-linux 7.
Thanks for help!
Eric
// Code extract
if (fChain == 0) return;
// Tree of selected events
TFile *sel_file = new TFile("sel_tree.root","RECREATE");
sel_file->cd();
TTree *sel_tree = fChain->CloneTree(0);
Int_t my_entries = Int_t(fChain->GetEntries());
cout << endl << endl << " This file contains " << my_entries << " events " << endl << endl;
Int_t nbytes = 0, nb = 0;
for (Int_t jentry=0; jentry<my_entries;jentry++) {
Int_t ientry = LoadTree(jentry);
cout << "event number " << jentry<< endl;
nb = fChain->GetEntry(jentry); nbytes += nb;
sel_tree->Fill();
}// jentry
sel_file->cd();
sel_file->Write();
sel_file->Close();
delete sel_file;
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