Re: [boost] [constrained_types] Here it is :D

From: Robert Kawulak (kawulak_at_[hidden])
Date: 2005-10-12 13:24:21

> From: Larry Evans

> By "composition" (of f, for example) do you mean:
> 
> // A class inherited from empty base classes, with a char member
> struct g {
>    f a_f;
>    char c;
> };
> 
> ?

Yes.

> The policy_ptr library in sandbox used to have something that could
> test whether a base class was empty and eliminate it from the 
> inheritance.  I think the template class used was already somewhere
> in boost.  Looking...
> 
> Yes.  A copy is at:
> 
> http://cvs.sourceforge.net/viewcvs.py/boost-sandbox/boost-sand
> box/boost/managed_ptr/optimally_inherit.hpp

But this is only about multiple inheritance, right? I use single
inheritance, so this seems not to be useful in the case...