1: interface Interface(T) {
 2: 	void foo();
 3: }
 4:
 5: abstract class Abstract(T) : Interface!(T) {
 6:	void foo();
 7: }
 8:
 9: class Concrete(T) : Abstract!(T) {
10:	void foo() {}
11: }
12:
13: class Sub(T) : Concrete!(T) {
14: }
15:
16: int main() {
17: 	new Sub!(Object)();
18: 	return 0;
19: }

This crashes the compiler for me (winxp).
If i change "interface" to "abstract class" (1) it works, but no multiple inheritance.
If I change "void" to "abstract void" (6), i get:
collectionstmp.d: class Abstract interface function Interface.foo is not implemented
If i remove the templating and replace T with Object everywhere, I get the error
collectionstmp.d: class Abstract interface function Interface.foo is not implemented

Do abstract classes actually work?

Sam