template16.c

this is a gcc file, you can download it and learn its usetility, for further detail please look at t

// Build don't link: 
// GROUPS passed templates
template<class T> class TList {
   typedef void (T::*TVOIDFUNT)();
   typedef T*   (T::*TTPFUNT)(T*);
};

class A;
class B : TList<A> { };