std.container.RedBlackTree versus C++ std::set

[Ivan Kazmenko]

> If I use (as you do)
> ----
> this(ref this) {
> ----
> I get 0 as output. (dmd 2.062 beta1)
> If I remove the 'ref' I get 11389556.

Ouch, sorry!  That's a copy & paste bug I introduced when posting 
here.

Actually, I use this (this) of course.  I tried this (ref this) 
at some point, it does indeed compile surprisingly, but it's not 
what gets called on copying (and thus is of no use).