Inner struct accessing host member

[Martijn Pot via Digitalmars-d-learn]

On Tuesday, 5 August 2014 at 20:32:08 UTC, Philippe Sigaud wrote:
> I'd have thought that this would work:
>
> struct A
> {
>     int[] i;
>     B b;
>
>     struct B
>     {
>         void foo() { i ~= 1;}
>     }
> }
>
> void main()
> {
>     A a;
>     a.b.foo();
> }
>
> But the compiler tells me 'need this for i of type int[]'.
> Is there any way I can gain access on i inside B?

I know I've read this in TDPL, but don't recall enough.

Does this help : 
http://www.digitalmars.com/d/archives/digitalmars/D/learn/Nested_struct_member_has_no_access_to_the_enclosing_class_data_38294.html 
?