Pointer to private structure

[Nikhil Jacob via Digitalmars-d-learn]

On Monday, 19 December 2016 at 10:14:49 UTC, Ali wrote:
> On Monday, 19 December 2016 at 06:42:27 UTC, Nikhil Jacob wrote:
>> [...]
>
> What're you trying to do here?
>
> Forward declarations in C++ are used to solve a few different 
> things:
> 1. Reduce build times (unneeded in D AFAIK)
> 2. Break cyclic references (unneeded in D again?)
> 3. Give APIs visibility (D's modules and Access layers solve 
> this)
> 4. Maintain binary compatibility while allowing internal data 
> changes (aka pimlp idiom) <-- This I believe you cannot do in D 
> - https://wiki.dlang.org/Access_specifiers_and_visibility 
> (someone correct me if I'm wrong)
>
> I've seen something about .di files in D. But they seem flakey 
> a bit.

I was trying to do something similar to pimlp idiom.

But after thinking over it, I found a better way in D.

Thanks for pointing to the wiki