[Boost-users] Wrapping variant into a smart reference

From: Mathias Gaunard (mathias.gaunard_at_[hidden])
Date: 2006-11-24 15:40:10

I would have liked to wrap boost.variant<Base, Derived1, Derived2 .. 
DerivedN> into a smart reference that would act like a reference to Base.

Unfortunetely, the variadic template nature makes this extremely 
complicated, especially since there are a lot of conversions cases to 
handle too (<Base, Derived1..DerivedN> should be convertible to 
<BaseOfBase, Base, Derived1..DerivedN>).

Is there any way to code that kind of thing easily?