// open input file and get the TTree
TFile inFile(fileName, "READ");
+ if (!inFile.IsOpen()) return;
TTree *aodTree = (TTree*)inFile.Get("aodTree");
+
AliAODEvent *ev = new AliAODEvent();
ev->ReadFromTree(aodTree);
// read events
aodTree->GetEvent(nEv);
-
+
//print event info
ev->GetHeader()->Print();