mem_fun.cc

#include <iostream>

void (*mem_fun_cb)(void);

class mem_fun {
    private:
    public:
        mem_fun() { }
        ~mem_fun() { }

        void my_public_member_f() {
            std::cout << "called " << std::endl;
        }
};

int main()
{
    mem_fun m;

    m.my_public_member_f();

    mem_fun_cb = m.my_public_member_f;

    mem_fun_cb();

}