HierarchyID.hh

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#ifndef IDHIERARCHY_HH
#define IDHIERARCHY_HH

#include <iostream>

namespace CASM {


  template< typename Base>
  class HierarchyID;
  template< typename Derived, typename Base >
  class DerivedID;

  template< typename Base >
  class HierarchyID {
  protected:
    static int new_class_ID() {
      static int Nclass = 0;
      Base::extend_hierarchy();
      //std::cout << "Nclass is " << Nclass << '\n';
      return Nclass++;

    };
  };

  //~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

  template< typename Derived, typename Base >
  class DerivedID : protected HierarchyID<Base> {
  protected:
    //static bool table_empty;
    static int get_class_ID() {
      static int ID_val = HierarchyID<Base>:: new_class_ID();
      static bool table_empty = true;
      if(table_empty) {
        table_empty = false;
        Derived::fill_dispatch_table();
      }
      return ID_val;
    };
  };

  /*  template< typename Derived, typename Base >
  bool DerivedID<Derived, Base> :: table_empty(true);
  */
}
#endif