int Turn ();
}
+public interface IWalker {
+ int Walk ();
+}
+
public class Base : IVehicle {
int IVehicle.Start () { return 1; }
public int Stop () { return 2; }
public virtual int Turn () { return 3; }
+ public int Walk () { return 1; }
}
public class Derived1 : Base {
public override int Turn () { return 8; }
}
+public class Derived3 : Derived1, IWalker {
+}
+
public class Test {
static int Main () {
Derived1 d1 = new Derived1 ();
Derived2 d2 = new Derived2 ();
+ Derived3 d3 = new Derived3 ();
Base b1 = d1;
Base b2 = d2;
Base rb = new Base ();
if (((IVehicle)d1).Turn () != 4)
return 2;
+ if (((Base)d2).Turn () != 8)
+ return 10;
+
if (((IVehicle)d2).Turn () != 7)
return 3;
if (((IVehicle)d2).Stop () != 6)
return 8;
+ if (d3.Walk () != 1)
+ return 9;
+
//Console.WriteLine ("TEST {0}", ((IVehicle)b2).Turn ());
return 0;
}