[boost] Enhanced call_once()

From: Andrew J Bromage (ajb_at_[hidden])
Date: 2002-08-06 02:00:05

G'day all.

Boost currently provides this:

        void call_once(void (*func)(), once_flag&);

Is there any interest in something like this?

        void call_once(function0<void>& func, once_flag&);

Obviously once_flag isn't appropriate for this, so I envisage something
more like this:

        class once : private noncopyable {
        public:
                once();
                ~once();
                void call_once(function0<void>& func);
        };

Cheers,
Andrew Bromage