On Tuesday, 5 February 2013 at 16:36:16 UTC, Maxim Fomin wrote:

> This does not imply such situation, simply there is a problem. You can workaround by
>
[snip]
> struct RC {
>     int i;
>     void postblit() { i = -5; }
>     this(this) const
>     {
>         void delegate() dg = &postblit;
>         dg();
>     }
> }

Great thanks. I'll try.

But why does this even code work? I would have thought const guarantee would prevent calls to non-const postblit function. I was under impression this(this) const does not work - but maybe that has changed with 2.061.

What source (lang spec, TDPL, or newsgroup) led you to this solution and for how long will it be valid? Where can I read more on it?

Thanks
Dan

On Tuesday, 5 February 2013 at 17:05:23 UTC, Dan wrote:
> But why does this even code work? I would have thought const guarantee would prevent calls to non-const postblit function. I was under impression this(this) const does not work - but maybe that has changed with 2.061.

Forgot to mention, it works on 2.061.

> What source (lang spec, TDPL, or newsgroup) led you to this solution and for how long will it be valid? Where can I read more on it?
>
> Thanks
> Dan

Const postblit worked at least at 2.060. Originally idea was to make const cast on function call, but at a current time it is not needed. May be another bug.