Function main

example/override.cpp:62–73

}

int main() {
  draw<v1::Drawable>(Circle{});  // prints v1::Circle
  draw<v1::Drawable>(Square{});  // prints v1::Square

  draw<v2::Drawable>(Circle{});  // prints v1::Circle
  draw<v2::Drawable>(Square{});  // prints v1::Square

  draw<v3::Drawable>(Circle{});     // prints v3::Circle
  draw<v3::Drawable>(Circle{}, 1);  // prints v3.1::Circle
  draw<v3::Drawable>(Square{});     // prints v3::Square
  draw<v3::Drawable>(Square{}, 2);  // prints v3.2::Square
}