Import Geant4 11.1.0.beta source tree

source/processes/management/include/G4VDiscreteProcess.hh

@@ -85,12 +85,25 @@ class G4VDiscreteProcess : public G4VProcess
     virtual G4VParticleChange* AtRestDoIt(
                              const G4Track& ,
                              const G4Step&
-                            ) { return 0; }
+                            ) { return nullptr; }
 
     virtual G4VParticleChange* AlongStepDoIt(
                              const G4Track& ,
                              const G4Step& 
-                            ) { return 0; }
+                            ) { return nullptr; }
+
+    // cross section in the unit of inverse length as a 
+    // function of kinetic energy 
+    virtual G4double GetCrossSection(
+                             const G4double,
+                             const G4MaterialCutsCouple*
+                            ) { return 0.0; }
+
+    // minimal energy for non-zero cross section
+    virtual G4double MinPrimaryEnergy(
+                             const G4ParticleDefinition*,
+                             const G4Material*
+                            ) { return 0.0; }
  
   protected:
 

source/processes/management/include/G4VProcess.hh

@@ -240,6 +240,10 @@ class G4VProcess
     static const G4String& GetProcessTypeName(G4ProcessType);
       // Returns the process type name
 
+    virtual const G4VProcess* GetCreatorProcess() const;
+      // Returns the process to be used as CreatorProcess for secondaries
+      // coming from this process
+
     virtual void StartTracking(G4Track*);
     virtual void EndTracking();
       // Inform Start/End of tracking for each track to the physics process