Dear ROOTers,
I have in my tree a variable-lenght array, such as TDCt[nTDC].
When i use MakeClass, i notice that in the class
Int_t TDCt[31]; //[nTDC]
is declared, and i don’t know why this “31” is chosen as array lenght.
Is it correct? Should I adjust manually the size?
Are you using a very old version (more than 4 years old)?
If your Tree was produced with a declaration like
Int_t *TDCt; //[nTDC]
the code generated by MakeClass will contain one line like
Int_t TDCt[kMaxnTDC]; //[nTDC]
where kMaxnTDC will be declared early in the file with teh maximum value
seen in nTDC when filling the Tree, eg
const Int_t kMaxnTDC = 56;
If this is not the case, please post a copy of a small root file showing this problem
Rene
[quote=“brun”]Are you using a very old version (more than 4 years old)?
If your Tree was produced with a declaration like
Int_t *TDCt; //[nTDC]
the code generated by MakeClass will contain one line like
Int_t TDCt[kMaxnTDC]; //[nTDC]
where kMaxnTDC will be declared early in the file with teh maximum value
seen in nTDC when filling the Tree, eg
const Int_t kMaxnTDC = 56;
If this is not the case, please post a copy of a small root file showing this problem
Rene[/quote]
the versions are the following:
ROOT v4.03.04, compiled by me on a Scientific Linux (maybe SLAC version) pc with gcc vesion 3.2.3
I attached the root file containing the tree and the routine i used to fill the tree. In the meanwhile i have increased manually the length of the array, but in this case i lose the advantage of re-using Makeclass to update the tree structure.
readdata.C (2.09 KB)
run0.root (381 KB)