[boost] result_of overloaded member function?

Hello, is there a way to get the result type of an overloaded member function? Something like: template< class T, class A > typename boost::result_of< T::func(A) >::type invoke( T& t, A& a ) { return t.func(a); } Thanks for help, Arno -- Dr. Arno Schödl | aschoedl@think-cell.com Technical Director think-cell Software GmbH | Chausseestr. 8/E | 10115 Berlin | Germany http://www.think-cell.com | phone +49 30 666473-10 | US phone +1 800 891 8091 Amtsgericht Berlin-Charlottenburg, HRB 85229 | European Union VAT Id DE813474306 Directors: Dr. Markus Hannebauer, Dr. Arno Schoedl