Interface inheritance

[Mandeep Singh Brar]

I just posted a bug on the bugs list about problems in compiling the following code using dmd, but realized
that there might be some inheritance feature that i might now be aware of. Can you please let me know if i
am missing something in the below code.

import std.stdio;
interface A {
        public void a(int l);
}
class ACl:A {
        public void a(int l) {
                writeln("Hello a");
        }
}

interface B: A {
        public void a(string l, int k);
}

class BCl: ACl, B {
        public void a(string l, int k) {
                writeln("Hello B.a", l, k);
        }
}

int main() {
        B b = new BCl();
        b.a(1);
        return 0;
}

However casting B to A like (cast(A)b).a(1); makes it work.

Mandeep