Import Geant4 10.0.0 source tree

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+//
+// ********************************************************************
+// * License and Disclaimer                                           *
+// *                                                                  *
+// * The  Geant4 software  is  copyright of the Copyright Holders  of *
+// * the Geant4 Collaboration.  It is provided  under  the terms  and *
+// * conditions of the Geant4 Software License,  included in the file *
+// * LICENSE and available at  http://cern.ch/geant4/license .  These *
+// * include a list of copyright holders.                             *
+// *                                                                  *
+// * 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.  Please see the license in the file  LICENSE  and URL above *
+// * for the full disclaimer and the limitation of liability.         *
+// *                                                                  *
+// * This  code  implementation is the result of  the  scientific and *
+// * technical work of the GEANT4 collaboration.                      *
+// * By using,  copying,  modifying or  distributing the software (or *
+// * any work based  on the software)  you  agree  to acknowledge its *
+// * use  in  resulting  scientific  publications,  and indicate your *
+// * acceptance of all terms of the Geant4 Software license.          *
+// ********************************************************************
+//
+// $Id$
+//
+// ---------------------------------------------------------------
+// GEANT 4 class header file
+//
+// Class Description:
+//   This function implements a simplified "garbage collection" mechanism
+//   for G4-MT model. Objects are registered when created on the heap and they 
+//   will be deleted at the end of
+//   the program (like they would be if marked as "static").
+// 
+// Limitation:
+//   The registered object, should not
+//   contain any G4ThreadLocal data member. Note that in general,
+//   if object is to be thread-private it is unnecessary to mark
+//   any data-member as G4ThreadLocal.
+//
+// Performance issues:
+//   This function uses G4ThreadLocalSingleton that on its own uses
+//   locks and mutexes. Thus its use should be limited to only when 
+//   really necessary.
+//
+// Example:
+//   class G4SharedByThreads {
+//     void calledByThreads() {
+//          G4Something* anObject = new G4Something;
+//          G4AutoDelete::Register( anObject );
+//     }
+//   };
+//
+// History:
+//  28 October 2013: A. Dotti - First implementation
+
+#ifndef G4AUTODELETE_HH
+#define G4AUTODELETE_HH
+
+#include "G4ThreadLocalSingleton.hh"
+namespace G4AutoDelete {
+  template<class T>
+  void Register( T* inst ) {
+    static G4ThreadLocalSingleton<T> container;
+    container.Register(inst);
+  }
+}
+
+#endif //G4AUTODELETE_HH