Pb with Trees

Laurent Aphecetche (aphecetche@ganil.fr)
Mon, 20 Oct 1997 14:25:23 +0200

Hi,

I'm trying to write objects (my objects) to a Root file, in 2 ways :

1. Serialization ;
2. Using a Tree (one branch) ;

My program looks like :

...
TROOT ROSEBUD("Rosebud","Rosebud : the TAPS analysis software
package");
TFile file("rosebud.root","RECREATE","Rosebud") ;
TTree* tree = new TTree("EM","EM particles") ;
TBranch* b = tree->Branch("event","Event",&gEvent,64000,0) ;
char keyname[200] ;

HLIMIT(PAWC_SIZE) ; // Init PAW

SetGlobals() ;

// Get the input ntuple
FIn = new File(1,argv[1]," ",0,"INPUT","ROSEIN",1024) ;
FIn->Open() ;
FIn->PutId(1000) ;
GetInputNtuple(*FIn,gInputNtuple,"Experiment") ;
cout << (*FIn) << endl ;

for ( i = 1 ; i <= atoi(argv[2]) ; i++ )
{
gEvent = new RBEvent ;

FillEvent(i,*FIn) ;

// 1. sprintf(keyname,"Event%d",i) ;
// 1. gEvent->Write(keyname) ;

// 2. tree->Fill() ;

delete gEvent ;
}

file.Close() ;

The first method works fine.
The second one gives me a Segmentation fault in TTree::GetCurrentFile.

Any clue ?

Thanks.

-- 
APHECETCHE Laurent (mailto:aphecetche@ganil.fr)       
GANIL, B.P. 5027, 14076, Caen Cedex 5, France 
Vox: +33 (0)2 31 45 45 85 - Fax: +33 (0)2 31 45 46 65         
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