Can someone tell me what the compiler thought I was trying to do?

[zjh]

On Wednesday, 19 October 2022 at 05:41:26 UTC, zjh wrote:
>
> Why can't do it `in one step`?
> Why always afraid to `add features`?
> C++ is `so complicated` ,but that people are not afraid to 
> continue to `add features`.

There is also `class level private`. I saw someone start it by 
himself, and he felt very happy. It completely conforms to the 
encapsulation, but it seems that the latest D has no switch about 
it.
In my opinion, as long as `users` have reasonable needs, 
languages should added corresponding features, instead of 
becoming religions.

`Some features` are very popular for users,I really don't know 
why they didn't add it.