David B. Held wrote: > Hmm...ok, I'm not getting anywhere talking about it abstractly, so > I'll just say that I'm trying to figure out how to improve the policy > adaptor interface for smart_ptr. In particular, I would like to go > from this: > > smart_ptr<int, my_policy<_>, my_other_policy<_> > p; > > to this: > > smart_ptr<int, my_policy, my_other_policy> p; > > I know I can do this by changing my_*policy to a metafunction > class. But then smart_ptr doesn't know where the guts are.
I am afraid I don't exactly understand the last sentence ;), but if 'smart_ptr' does something like typedef typename apply< typename lambda<Policy>::type , T >::type p; things should work independently of whenever 'Policy' is in form of 'my_policy<_>' or 'my_policy' - given that the latter is a metafunction class, of course. HTH, Aleksey _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost