Struct's alignment

[Temtaime]

Hello, guys!

I have Matrix class(that contains an array of 16 floats) and SSE 
code to mult it.
It's neccessary to have an array alignment 16.
I'm figured out simple test-code:

align(16) struct S {
        align(16) int a;
}


void main() {
        align(16) S s;
        writeln(cast(void *)&s.a);
}

And it prints 18FCC8, but must ends with "0". What i'm doing 
wrong?

Thanks.