Variable declaration in a macro

From: Axel Schwank (schwank@mail.desy.de)
Date: Tue Feb 10 1998 - 14:07:55 MET 

Dear Rooters,
I have a problem again and I do absolutely not see what's going wrong.
In the following macro:

{
//////////////////////////////////////////////////////////
//   This file has been automatically generated 
//     (Fri Feb  6 10:17:16 1998 by ROOT version 1.03/09)
//   from TTree T/Required banks for cosmic analysis
//   found on file: /afs/desy.de/user/s/schwank/store/root/Test.root
//////////////////////////////////////////////////////////


//Reset ROOT and connect tree file
   gROOT->Reset();
   TFile *f = new TFile("/afs/desy.de/user/s/schwank/store/root/Dice3.root");
   TTree *T = (TTree*)f->Get("T");

//Declaration of leaves types
   Int_t           DTRA_;
   Float_t         DTRA_fPtinv_tr[160];
   Float_t         DTRA_fPhi_tr[160];
   Float_t         DTRA_fThet_tr[160];
// ....
   Float_t         DTRA_fQ_tr[160];
   UInt_t          DMIS_fUniqueID[20];
   UInt_t          DMIS_fBits[20];

//Set branch addresses
   T->SetBranchAddress("DTRA_",&DTRA_);
   T->SetBranchAddress("DTRA.fPtinv_tr",DTRA_fPtinv_tr);
   T->SetBranchAddress("DTRA.fPhi_tr",DTRA_fPhi_tr);
   T->SetBranchAddress("DTRA.fThet_tr",DTRA_fThet_tr);
   T->SetBranchAddress("DTRA.fQ_tr",DTRA_fQ_tr);
// ....
   T->SetBranchAddress("DMIS.fUniqueID",DMIS_fUniqueID);
   T->SetBranchAddress("DMIS.fBits",DMIS_fBits);

//     This is the loop skeleton
//       To read only selected branches, Insert statements like:
// T->SetBranchStatus("*",0);  // disable all branches
// T->SetBranchStatus("branchname",1);  // activate branchname

   Int_t nentries = T->GetEntries();
   histo1=TH1S("DKappa","Delta Kappa",80,0,2);
   histo2=TH1S("SKappa","Sigma Kappa",80,-2,2);

   Float_t dkappa = 0;
   Float_t skappa = 0;
   Float_t kappa = 0;
   Int_t nbytes = 0;
   for (Int_t i=0; i<nentries;i++) {
      nbytes += T->GetEvent(i);
      cout << 0.5*(DTNV_fDcurv_tn[DCOS_fDtnv[0]]+DTNV_fDcurv_tn[DCOS_fDtnv2[0]]);
//      skappa = DTNV_fCurv_tn[DCOS_fDtnv[0]]-DTNV_fCurv_tn[DCOS_fDtnv2[0]];
//      kappa = 0.5*(DTNV_fCurv_tn[DCOS_fDtnv[0]]+DTNV_fCurv_tn[DCOS_fDtnv2[0]]);
//      pt = fabsf(2.99795e-4*DMIS_fB_field[0]/kappa);
//      if (pt>1 && pt<10){
//        histo1.Fill(dkappa/kappa);
//        histo2.Fill(skappa/kappa);
//      }
   }
}

ROOT complains "No symbol i in current scope" in the line containing the
for-loop !!! If i remove the comments in the following lines, the
interpreter complains "Undeclared data member skappa", even if declared.
I'm helpless, who sees the problem ?
Thanks in advance.

Axel Schwank

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