template < typename R, typename A, typename B, typename C, typename D > struct _EngineTrampoline< R( A, B, C, D ) > { struct Args { char data[ sizeof( typename EngineTypeTraits< A >::ArgumentValueType ) + sizeof( typename EngineTypeTraits< B >::ArgumentValueType ) + sizeof( typename EngineTypeTraits< C >::ArgumentValueType ) + sizeof( typename EngineTypeTraits< D >::ArgumentValueType ) ]; }; };