Listing 5

  struct fxn_ptr_table
  {
    std::type_info const& (*type)();
    void (*destructor)(object_holder&);
    void (*static_delete)(object_holder&);
    void (*clone)(object_holder&, const object_holder&);
    void (*assign)(object_holder&, const object_holder&);
    bool (*is_optimized)();
    void (*swap)(object_holder&, object_holder&);
  };