--- a/src/ov-builtin.h
+++ b/src/ov-builtin.h
@@ -50,25 +50,10 @@
 
   ~octave_builtin (void) { }
 
-  void *operator new (size_t size)
-    { return allocator.alloc (size); }
-
-  void operator delete (void *p, size_t size)
-    { allocator.free (p, size); }
-
   octave_function *function_value (bool) { return this; }
 
   octave_value_list do_index_op (int nargout, const octave_value_list& args);
 
-  int type_id (void) const { return t_id; }
-
-  string type_name (void) const { return t_name; }
-
-  static int static_type_id (void) { return t_id; }
-
-  static void register_type (void)
-    { t_id = octave_value_typeinfo::register_type (t_name); }
-
 private:
 
   octave_builtin (void);
@@ -78,14 +63,9 @@
   // A pointer to the actual function.
   fcn f;
 
-  // For custom memory management.
-  static octave_allocator allocator;
+  DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA
 
-  // Type id of list objects, set by register_type().
-  static int t_id;
-
-  // Type name of list objects, defined in ov-list.cc.
-  static const string t_name;
+  DECLARE_OCTAVE_ALLOCATOR
 };
 
 #endif