[pfultz2]

> It is possible to implement it in C++, but the implementation winds up being ridiculously complicated.

It may be more verbose in C++, but its not more complicated, and its definitely not "ridiculously" complicated.

> I just implemented something very similar in Common Lisp and it wound up being incredibly simple.

Maybe for you as a lisp programmer, but for me I find the lisp code incomprehensible.