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I'm a C# programmer new to the D language. I'm a bit to confused with OOP in the D programming language. Assuming that I have the following class: public class A { protected void foo() { writefln("A.foo() called."); } }; public class B : A { public override void foo() { writefln("B.foo() called."); } }; The protected modifier means that I can access the .foo() method just on inherited class. So why does this D program compile normally? Here is the equivalent in C#.NET : using System; public class A { protected virtual void foo() { Console.WriteLine("a.foo() called."); } }; public class B : A { public override void foo() { Console.WriteLine("b.foo() called."); } }; public class MainClass { public static void Main(string[] args) { A a = new A(); B b = new B(); a.foo(); b.foo(); } }; It don't compile and given the following error message (as expected): test.cs(10,30): error CS0507: B.foo()': cannot change access modifiers when overriding protected' inherited member `A.foo()' Can someone explain this D behavior?

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