From: Gennadiy Rozental (gennadiy.rozental_at_[hidden])
Date: 2005-02-18 15:33:10
> > I wil need to look in more detailes. I could be not trivial. Also I
couldn't
> > afford all the dependencies you introduced.
>
> ?? I was very careful to avoid dependencies.
#include <boost/optional.hpp>
#include <boost/function.hpp>