Template class, function specialization

Question

I want to have a template class that looks something like what I have down below. Then, I want a function in it with a template specialization depending on a CLASS template para

Answer 1

struct Otherwise { };
template struct C : Otherwise { };

// don't use _Uppercase - those names are reserved for the implementation
// (i removed the '_' char)
template 
class Foo
{
public:
    void Func() { Func(C()); }

private:
    // If num == 1, I want to call this function...
    void Func(C<1>)
    {
        printf("Hi 1!");
    }

    // If num == 2, I want to call this function...
    void Func(C<2>)
    {
        printf("Hi 2!");
    }

    // Otherwise, I want to call this version.
    void Func(Otherwise)
    {
        printf("Hello world!");
    }

    //// alternative otherwise solution:
    // template
    // void Func(C) { .. }
};