struct Foo
{
    void something(int) {}
};

template <class T, class M, M m>
struct Bar
{
    template <typename ... Args>
    void operator()(T& t, Args ... args)
    {
        (t.*m)(args...);
    }
};

int main()
{
    Bar<Foo, decltype(&Foo::something), &Foo::something> b;
    Foo f;
    b(f, 1);
    return 0;
}