Variable getting mangled during retrieval

[Wile_E_Coyote]

And what does tr->Print(); say about the “PCTimeTag” branch?

BTW. For “gROOT”, you need to #include "TROOT.h" (and, in your own standalone executable, you might need to create a TApplication).

Header files for Trees

“Most recent” documentation about how to generate and use an “analysis skeleton”: TTree::MakeClass (see also “ROOT User’s Guide” → “Trees” → “Using TTree::MakeClass”) TTree::MakeSelector (see also “ROOT Primer” → “File I/O and Parallel Analysis” → “N-tuples in ROOT” → “For the advanced user: Processing trees with a selector script” and “ROOT User’s Guide” → “Trees” → “Using TTree::MakeSelector” and “ROOT User’s Guide” → “Example Analysis”) TTree::MakeProxy ROOT::RDataFrame (uses the T…