anchor.diff:      start/4,
       start_link/3,
       start_link/4,
  -    enter_loop/3
  +    enter_loop/3,
  +    cast/2
   ]).
   
   -export([
  
positive.code:     end.
  
  
  do_info(#st{module=Module, state=State}=St, Message) ->
      case (catch Module:handle_info(Message, State)) of
          {ok, NewState} ->
  
negative.code:     [
          {init,1},
          {terminate/2},
          {handle_cast/2},
          {handle_event/2},
          {handle_info/2}
      ];
  