[ROOT] gROOT->GetClass()

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hi,

quick question:
how can I know, in a named script, if a user defined class
exists?

For eg, I define a class like the one on page 81 of the
Root's User Guide v0.6.1:

---
root [0] .L script4.C
root [1] TMyClass *a = new TMyClass
root [2] .x tempA.C
No
root [3].! cat tempA.C
#include <iostream>

void tempA()
{

  if(gROOT->GetClass("TMyClass")) {
    cout << "Yes" << endl;
  } else {
    cout << "No" << endl;
  }


}

in fact:
root [4] gROOT->GetClass("TMyClass")
(class TClass*)0x0

---

If I replace "TMyClass" by any of the output of .class I get
Yes. How should I do this?

I'm using 2.25/00 on IRIX64.


Thanks a lot,
Sebastian

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