Cannot pass by reference

[Jeroen Bollen]

On Saturday, 16 November 2013 at 14:28:45 UTC, bearophile wrote:
> Jeroen Bollen:
>
>> Why is that?
>
> It's caused by the cast. The solution is to use an auxiliary 
> value inside the main, or remove the cast.
>
> Bye,
> bearophile

Same error, but "is not callable using argument types 
(TcpSocket)"...