C++ pattern matching is coming

[Quirin Schroll]

On Sunday, 23 October 2022 at 23:40:21 UTC, Walter Bright wrote:
> The syntax of `switch` is old-fashioned, too.

Yes.

> A more modern one would be:
>
>     match (x)
>     {
>         0 => foo();
>         3 => bar();
>     }
>
> Note the lack of need for `break`.

No. Java re-used the `swtich` keyword and IMO is correct in doing 
so. The rest is great as in Java.

We could have both, C#’s and Java’s great version of switch, i.e. 
the `expression switch { case pattern => …; }` *expression* and 
the `switch (expression) { case value => statement; }` version. 
Like with `mixin`, there can be a statement and an expression 
form, and while the mixin stuff is confusing, here the syntax is 
visually different.