Hi all, I have a problem creating/using global objects. I have reproduced it in sample code here. - I have two classes A & B. - in A.cc I define a global pointer gAptr - in B.cc I have a statement extern A* gAptr - B has a method which uses gAptr - I create the dict/.so file/... (see Makefile) - I compile executable code with an extern A* gAptr in the file abexe.cc ==> everything works - I load the .so file into root, instantiate gAptr, and I seg fault I understand why this works in the compiled version - there is no ambiguity about what gAptr is. Running the same commands within root, it must be unclear about what gAptr is and gAptr is just an automatically generated new variable, not the global I'd defined. Is there a way around this? As a minor side question, what is the difference between R__EXTERN and extern? Thank you for your help, Cheers, Chris -- ******************************** Chris Jillings Kellogg Radiation Laboratory California Institute of Technology jillings@caltech.edu http://www.krl.caltech.edu/~jillings ********************************
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