anchor.diff:  {$ENDIF}
   begin
   {$IFDEF POSIX}
  -  // not test
  +  // δ
     FD_ZERO(lvFDSet);
     _FD_SET(FSocketHandle, lvFDSet);
   
  
positive.code: {$ENDIF}
  begin
  {$IFDEF POSIX}
    // not test
    FD_ZERO(lvFDSet);
    _FD_SET(FSocketHandle, lvFDSet);
  
  
negative.code: end;
  
  function TRawSocket.RecvdCount: Integer;
  begin
    // δ
    Result := 0;
  end;
  
  procedure TRawSocket.SetConnectInfo(const pvAddr: string; pvPort: Integer);
  