CORBA::tk_null, CORBA::tk_void, CORBA::tk_short,
CORBA::tk_long, CORBA::tk_ushort, CORBA::tk_ulong,
CORBA::tk_float, CORBA::tk_double, CORBA::tk_boolean,
CORBA::tk_char, CORBA::tk_octet, CORBA::tk_any,
CORBA::tk_TypeCode, CORBA::tk_Principal, CORBA::tk_longlong,
CORBA::tk_ulonglong, CORBA::tk_longdouble, CORBA::tk_wchar,
CORBA::tk_fixed, CORBA::tk_value, CORBA::tk_value_box,
CORBA::native, CORBA::tk_abstract_interface.