It looks like in the new versions of Root (I am running 6.06/02) the MakeSelector() method is changed to generate code using TTreeReader thing. With this new version, I get seg. faults when trying to read a tree with TLorentzVectors inside.
Here is an example tree I have: small.root (1.15 MB)
I generate my code like this:
root -l small.root
Then in smallAna.C in Process() method I simply try:
std::cout<<"lep1 pt = "<<lep1->Pt()<<std::endl; and this breaks.
The same tree works fine if the TSelector code is created in an older version of Root.
Q1. Is this a bug, or something I’m not doing right?
Q2. Is it possible to call an older version of MakeSelector() method within a new version of Root.
PS. For completeness, attaching here the smallAna.C and smallAna.h:
smallAna.C (842 Bytes)smallAna.h (2.53 KB)
I run it with apzTree->Process(“smallAna.C”)
And the error I get is Error in TBranchProxy::Read: Unable to initialize lep1