boost::mixin::internal::object_type_info::call_table_entry
// In header: <boost/mixin/object_type_info.hpp> struct call_table_entry { // public data members const message_for_mixin * message_data; call_table_entry * multicast_begin; call_table_entry * multicast_end; union boost::mixin::internal::object_type_info::call_table_entry::@0 @1; };