Re: Problem constructing TROOT object

From: Rene Brun (Rene.Brun@cern.ch)
Date: Wed Jun 09 1999 - 08:33:59 MEST


Hi Nick,
I am suspecting a problem with your ".rootrc" file.
Your main program is correct. Note that you can remove the line:
int Error;  ..needed by Motif
Root does not use Motif anymore.
I suggest you copy $ROOTSYS/tutorials/.rootrc file in your directory
and try again. If this solves the problem, please send me a copy
of your existing .rootrc file to understand what could generate this
crash.

Rene Brun

Nick West wrote:
> 
> Hi rooters,
> 
> I am trying to build our standard MINOS event display application with ROOT
> 2.21/08.  Our main application is quite standard:-
> 
>   ..
> 
>   int Error;                                   // Needed by Motif on HP-UX
> 
>   extern void InitGui();
>   VoidFuncPtr_t initfuncs[] = { InitGui, 0 };
> 
>   TROOT root("MINOS GUI", "MINOS GUI test environment", initfuncs);
>   MINFast *gMINFast;
> 
>   int main(int argc, char **argv)
>   {
>      cout << "Main program starting ..." << endl;
> 
>      TRint theApp("Rint", &argc, argv, 0, 0);
> 
>   ...
> 
> but it dies BEFORE control passes to the main function with:-
> 
>   Fatal in <operator delete>: storage area overwritten
>   aborting
> 
> so it must be a problem with a static object.  If I comment out the TROOT root
> definition, the program dies of course, but at least I see the message "Main
> program starting ..." first, showing that the main program has got control.
> Using the debugger, the traceback for the error is:-
> 
>   minfastjob
>   __init_sti__minfastjob_C_Error
>   TROOT
>   InitSystem
>   TENV
>   __dla
>   operator delete
>   Fatal
>   ErrorHandler
>   DefaultErrorHandler
>   Abort
>   ...
> 
> any idea where I should start to look?  I am using DIGITAL C++ V6.1-027 and the
> tar file DEC/Alpha/Unix with DEC/CXX 6 version 2.21/08.  I get the problem
> whether I take the supplied binary or rebuild locally.  Its probably not
> connected but, when I do compile I get many warning on CINT generated code of
> the form:-
> 
> > cxx: Warning: MinfCint.cc, line 56: type qualifier is meaningless on cast type
> > (const Int_t)G__int(libp->para[0]),(const Int_t)G__int(libp->para[1])
> > -^
> 
> which I never used to get.
> 
> Thanks,
> 
> Nick West



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