How do you overload the [][] operator?

[wtf]

I've seen pages referencing how to overload the [] operator but not the [][] operator.

[Bazzy]

You can trick that using a dummy class
But it's usually recommended to overload binary parentheses

[Galik]

You overload the [] operator which returns a class that itself also overloads the [] operator.

[Duthomhas]

The [][] is not an operator.

Start reading here
http://www.parashift.com/c++-faq-lite/operator-overloading.html#faq-13.10
http://www.parashift.com/c++-faq-lite/operator-overloading.html#faq-13.11
http://www.parashift.com/c++-faq-lite/operator-overloading.html#faq-13.12

And yes, the answer for how to do it is in there. Good luck!