1. I found this name a bit misleading. At first I though that it some king of iteration through variant types 2. From quick glance on your code it seems that visit_helper class unnessesarilly parameterized with T0 and T1. Removing this parameterization (Use member templates instead) should make your code more simple.
Gennadiy. _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost