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.hh,v 1.5 2002/05/31 10:16:01 dressel Exp $
+// GEANT4 tag $Name: geant4-04-01 $
+//
+// ----------------------------------------------------------------------
+// Class G4ParallelImportanceProcess
+//
+// Class description:
+//
+// Used internally by importance sampling in a "parallel" geometry.
+// This is a G4ParallelTransport that also does importance
+// sampling in the "parallel" geometry.
+
+// Author: Michael Dressel (Michael.Dressel@cern.ch)
+// ----------------------------------------------------------------------
+#ifndef G4ParallelImportanceProcess_hh
+#define G4ParallelImportanceProcess_hh G4ParallelImportanceProcess_hh
+
+#include "G4ParallelTransport.hh"
+#include "G4ImportancePostStepDoIt.hh"
+
+class G4VImportanceSplitExaminer;
+class G4Nsplit_Weight;
+
+class G4ParallelImportanceProcess : public G4ParallelTransport
+{
+
+public:  // with description
+
+  G4ParallelImportanceProcess(const G4VImportanceSplitExaminer &aImportanceSplitExaminer,
+			      G4VPGeoDriver &pgeodriver, 
+			      G4VParallelStepper &aStepper,
+			      const G4String &aName = "ParallelImportanceProcess");  
+    // initialise G4ParallelTransport and members
+
+  G4VParticleChange *PostStepDoIt(const G4Track&,
+				  const G4Step&);
+    // do the "parallel transport" and importance sampling.
+
+private:
+
+  G4ParallelImportanceProcess(const G4ParallelImportanceProcess &);
+  G4ParallelImportanceProcess &operator=(const G4ParallelImportanceProcess &);
+  
+  void Error(const G4String &m);
+
+private:
+
+  G4ParticleChange *fParticleChange;
+  const G4VImportanceSplitExaminer &fImportanceSplitExaminer;  
+  G4ImportancePostStepDoIt fImportancePostStepDoIt;
+};
+
+#endif