Import Geant4 4.1.0 source tree

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+//
+// ********************************************************************
+// * DISCLAIMER                                                       *
+// *                                                                  *
+// * The following disclaimer summarizes all the specific disclaimers *
+// * of contributors to this software. The specific disclaimers,which *
+// * govern, are listed with their locations in:                      *
+// *   http://cern.ch/geant4/license                                  *
+// *                                                                  *
+// * Neither the authors of this software system, nor their employing *
+// * institutes,nor the agencies providing financial support for this *
+// * work  make  any representation or  warranty, express or implied, *
+// * regarding  this  software system or assume any liability for its *
+// * use.                                                             *
+// *                                                                  *
+// * This  code  implementation is the  intellectual property  of the *
+// * GEANT4 collaboration.                                            *
+// * By copying,  distributing  or modifying the Program (or any work *
+// * based  on  the Program)  you indicate  your  acceptance of  this *
+// * statement, and all its terms.                                    *
+// ********************************************************************
+//
+//
+// $Id: G4ParallelImportanceProcess.cc,v 1.3 2002/05/31 08:06:34 dressel Exp $
+// GEANT4 tag $Name: geant4-04-01 $
+//
+// ----------------------------------------------------------------------
+// GEANT 4 class source file
+//
+// G4ParallelImportanceProcess.cc
+//
+// ----------------------------------------------------------------------
+
+#include "G4ParallelImportanceProcess.hh"
+#include "G4VImportanceSplitExaminer.hh"
+#include "g4std/strstream"
+
+G4ParallelImportanceProcess::
+G4ParallelImportanceProcess(const G4VImportanceSplitExaminer &aImportanceSplitExaminer,
+		    G4VPGeoDriver &pgeodriver,
+		    G4VParallelStepper &aStepper, 
+		    const G4String &aName)
+ : G4ParallelTransport(pgeodriver, aStepper, aName),
+   fParticleChange(G4ParallelTransport::fParticleChange),
+   fImportanceSplitExaminer(aImportanceSplitExaminer)
+{}
+
+
+G4VParticleChange *G4ParallelImportanceProcess::
+PostStepDoIt(const G4Track& aTrack, const G4Step &aStep)
+{
+  if (aTrack.GetTrackStatus()==fStopAndKill) {
+    G4cout << "G4ParallelImportanceProcess::PostStepDoIt StopAndKill" << G4endl;
+  }
+  G4ParallelTransport::PostStepDoIt(aTrack, aStep);
+
+  // get new weight and number of clones
+  G4Nsplit_Weight nw(fImportanceSplitExaminer.Examine(aTrack.GetWeight()));
+
+  fImportancePostStepDoIt.DoIt(aTrack, fParticleChange, nw);
+  return fParticleChange;
+}
+  
+void G4ParallelImportanceProcess::Error(const G4String &m)
+{
+  G4cout << "ERROR - G4ImportanceProcess::" << m << G4endl;
+  G4Exception("Program aborted.");
+}