gistfile1.cpp

template<typename Func, Func func> struct thunk;

template<typename Class, typename R, typename ...Args, R(Class::*func)(Args...)>
struct thunk<R(Class::*)(Args...), func>
{
	static R call(Tox *tox, Args ...args, void *userData)
	{
        return ((*static_cast<Class *>(userData)).*func)(args...);	
	}
};