Problem with in my program?

ROOT
1

Dear Rooters

I’m running a program in Mac and it works and when I tried it in Linux system it couldn’t. Can you please guide me that what’s wrong with it. Thank you. Attached is the program.
twoDMap.cpp (2.5 KB)

Regards

Zaheer

2

You need to write what error(s) you get.

3

Thank you very much for your reply. The following error I got.
Processing twoDMap.cpp…
Error: Function access(rootfile,0) is not defined in current scope twoDMap.cpp:27:
*** Interpreter error recovered ***
Note: I’m the beginner using Root.

Regards
Zaheer

4

Well, ROOT 5 interpreter doesn’t know it.
You would need to precompile it using ACLiC, e.g.: root [0] .x twoDMap.cpp++

Or use this:

void twoDMap()
{
  const char *rootfile = "/Users/shishaoxi/research/data/spectra/rootfiles/o2_12.root";
  TFile *fin = TFile::Open(rootfile);
  if ((!fin) || fin->IsZombie()) { // just a precaution
    std::cout << "***File " << rootfile << " not usable!***" << std::endl;
    delete fin;
    return;
  }
  TTree *tree;
  fin->GetObject("t", tree);
  if (!tree) { // just a precaution
    std::cout << "***Tree not found in the " << rootfile << " file!***" << std::endl;
    delete fin;
    return;
  }
  // ...
  delete fout; // automatically deletes the "T777", too
  delete fin; // automatically deletes the "tree", too
}
5

Thank you very much, but my question is why the same program works in Mac system using ROOT, but it doesn’t work in Linux system.

Regards
Zaheer

6

Different ROOT versions?

7

For Mac: v6.10.08,
For Ubuntu: Version 5.34/30

8

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