module main;

import tango.io.Stdout;

template addressOf( alias fn ) {
  const addressOf = &fn;
}

class A {
  void foo( int a ) {}
  void foo( float a ) {}

  final void bar() {
    auto dg = &foo;
    if ( addressOf!( foo ) == dg.funcptr ) {
      Stdout( "not overridden" ).newline;
    } else {
      Stdout( "overridden" ).newline;
    }
  }
}

class B : A {
  override void foo( int a ) {}
}

void main() {
  A a = new A();
  a.bar;

  A b = new B();
  b.bar;
}