@couet Maybe one should fix this description? Instead of the word “integer”, there should be the word “character”.
Also, maybe the explicit statement “The leaf referred to by nelem **MUST** be an int (/I)” should be copied from the hidden TBranch::TBranch description to the TTree → Add a column (“branch”) holding fundamental types and arrays thereof
@pcanal and/or @Axel … is there any chance that other types of variables will be supported as [nelem] variable-size lengths (at least “unsigned int”, but maybe also other integer types would be useful in a long run).
Same for the TTreeReader, of course: