it looks very much like you didn't define a variable of TROOT type somewhere
in your code before calling any of ROOT functions (or ROOT object constructors).
This usually helps.
Regards, Pasha.
--------------------------------------------------------------------------------
Martin Woudstra writes:
> Dear Rooters,
>
> I am using Tmap in my code to store a map of readings of alignment systems
> with their names. But when I do a TMap::GetValue I get the following error
> message during runtime:
>
> Fatal in <TClass::TClass>: ROOT system not initialized
>
> I'm using aCC in HPUX 10.20. Before I used g++, and it worked fine.
> Can somebody please tell me where the problem could be?
>
> Regards,
> Martin.
>
> Relevant code:
>
> char szSysId[ALISYSIDLEN + 1];
> TMap mOffsets; // map of offsets with SysId as key
> CReading *Readings;
> CReading *pReadingsFound;
>
> for (iSys = 0; iSys < nSysOfType; iSys++)
> {
> Readings = new CReading;
> OffFile >> szSysId >> *Readings >> newl;
> mOffsets.Add(new TObjString(szSysId), Readings);
> }
> for (iSys=pType->iFirstSysNo; iSys < pType->iFirstSysNo+pType->nSys; iSys++)
> {
> cerr << "Trying mOffsets.GetValue of " << aAliSys[iSys].GetName() << endl;
> if ((pReadingsFound = (CReading *)mOffsets.GetValue(new
> TObjString(aAliSys[iSys].GetName()))) == 0)
> {
> error stuff
> }
> else
> {
> cerr << "Assigning *pReadingsFound" << endl;
> aAliSys[iSys].Zero = *pReadingsFound;
> }
> }
>
> CReading inherits from TObject, and aAliSys[] from TNamed.
>
> Output produced:
>
> Trying mOffsets.GetValue of 0A
> Fatal in <TClass::TClass>: ROOT system not initialized
> aborting
> zsh: 3870 abort geofix