How to force a static member to be initialized?

Question

Consider this example code:

template
char register_(){
    return D::get_dummy(); // static function
}

template
struct Foo{
           


        

Answer 1

Is there any way to force dummy to be initialized (effectively calling register_) without any instance of Bar or Foo (no instances, so no constructor trickery)?

Wouldn't this be sufficient?

std::cout << Foo::dummy;