clearing up the terminology...

dispatch.cpp

#include <iostream>

using namespace std;

struct A { virtual void f () { cout << "A" << endl; }};
struct B: A { void f () { cout << "B" << endl; }};

/* multiple static dispatch */
void overload (int, A *a, B *b)
{
  cout << "int a b" << endl;
  a->f (); /* single dynamic dispatch */
}

void overload (int, B *b, A *a)
{
  cout << "int b a" << endl;
  b->f ();
}

int
main ()
{
  B var;
  A *a = &var;
  B *b = &var;

  overload (0, a, b);
  overload (0, b, a);
}