Hi Masoud,
I have the impression that you have generated myfile.h,C
with one of your files (eg the first Root file).
In the code generated, there are arrays like;
Float_t en1[4]; //[mul1]
Float_t en2[3]; //[mul2]
Float_t thg[83]; //[mulg]
Float_t phg[83]; //[mulg]
Float_t delta[83]; //[mulg]
Float_t energy[83]; //[mulg]
Float_t id[83]; //[mulg]
Float_t tdc[83]; //[mulg]
for which the maximum size is based on the maximum value
of the lements mul1,mul2, etc for the entries in the first file.
It could be that in other files, mul1,2 have values
greater than the ones above.
Could you increase the size of these arrays to the maximum you expect
over all files and let me know.
Rene Brun
On Wed, 27 Nov 2002, Masoud M.Shafiei wrote:
> Dear Root users,
>
> I have 27 ntuple files of about 6 Mbytes. When I call them one
> by one on a root session everything goes well.
> What I want to do is to chain them all, make a class out of them ( using
> MakeClass command)
> and analyze my data. But, apparently the class made of a chain of more
> than 4 ntuples leads to
> segmentation violation while looping over the data!!
>
> ***********************************************
> Compiled for linux with thread support.
>
> CINT/ROOT C/C++ Interpreter version 5.15.50, July 7 2002
> Type ? for help. Commands must be C++ statements.
> Enclose multiple statements between { }.
> root [0] TChain ch("t");
> root [1] ch.Add("*.root");
> root [2] ch.MakeClass("myfile")
> Info in <TTreePlayer::MakeClass>: Files: myfile.h and myfile.C generated
> from Tree: t
> (Int_t)0
> root [0] .L myfile.C
> root [1] myfile t
> root [2] t.Loop();
>
> *** Break *** segmentation violation
> Root >
> ******************************************************************
>
> I have attached the "myfile.C and myfile.h" created by MakeClass()
> command, in case you may have look at them.
>
> any help is appreciated.
>
> Best Regards
> Masoud
>
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