" class A { void wee(); }

container<A> as; for_each(in as, a::wee()); "

So as as not to miss the point, I think I'd better expand the pseudo code example just a tad ... " class A { int wee() { return m_wee } // returns bit flag style int int m_wee; }; container<A> as; find_if ( in as, // somehow need to say here "current->wee() & SOME_FLAG" ); " Hope that is a little more clear. Thanks again, Gaz