Property access to a struct that contains struct

[Mike Parker via Digitalmars-d]

On Sunday, 26 February 2017 at 11:05:42 UTC, Guenter wrote:
> Hi,
>
> i do not understand where I am wrong in this code. I seems 
> there is a missing constructor, but i have no idea where.

>
>   @property A_t  ext() { return fext; }

Structs in D are value types, so you're returning a copy of fext 
here and that's what's getting updated with the new value. Try 
this:

ref A_T ext() { return fext; }