You arrays namefile_os, endfile_os, etc are not correctly dimensionned.
Check that the string passed to TChain::add is correct.
Rene Brun
On
Tue, 10 Aug 2004, Manoj Jha wrote:
> Dear Rooters,
> I am trying to merge different numbers of root files using the "Tchain->Add" method. I am using the following script
>
> -------------------------------------------------------------------------
> TChain * chain = new TChain("EGAMMA");
> for (Int_t ifil_os = 1; ifil_os < 20; ifil_os++) {
>
> Char_t namefile_os[16];
> strcpy (namefile_os, "egamma_60_875Events_");
> Char_t numfile_os[4];
> sprintf (numfile_os,"%d",ifil_os+1);
> Char_t endfile_os[6];
> strcpy (endfile_os, ".root");
> // strncat (namefile, numfile, endfile);
> TString mystring_os = "/home/jha/work/shaping/original_geometry/root
> _file/60_GeV/";
> chain->Add(mystring_os+namefile_os+numfile_os+endfile_os);
> }
> -----------------------------------------------------------------------
>
> When I run the script, I faced with the following error
>
> "Error in <TFile::TFile>: file /home/jha/work/shaping/original_geometry/root_file/60_GeV/egamma_60_875Events_2.root does not exist
> Error in <TFile::TFile>: file /home/jha/work/shaping/original_geometry/root_file/60_GeV/egamma_60_875Events_2.root does not exist
> Error in <TFile::TFile>: file /home/jha/work/shaping/original_geometry/root_file/60_GeV/egamma_60_875Events_2.root does not exist
> ..
> ..
> "
> and the program is still running with the above message.
>
> However, the above file exists in the mentioned folder. I am able to browse the contents of the above root file using TBrowser. Please let me know where I am committing the mistakes.
>
> Thanks for help.
>
> With regards,
> manoj jha
>
>
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