if (time_signature_req_l_)
return false;
- if (req_l->access_Command_req ())
- time_signature_req_l_ = req_l->access_Command_req ()->access_Time_signature_change_req ();
+ if (dynamic_cast <Command_req *> (req_l))
+ time_signature_req_l_ = dynamic_cast <Time_signature_change_req *> (req_l);
if (time_signature_req_l_)
return true;