Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.
One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.
But you can get the effect you want this way.
1) Define A::operator[] to return a reference to a B object
2) Define B::operator[] to return a reference to an item in C::array.
I don't know if it will work with nested classes.