More operators inside `is(...)` expressions

[Jacob Carlborg]

On Friday, 28 August 2020 at 07:22:51 UTC, Ogi wrote:

> There is one expression where allowing “!” would be much more 
> beneficial — version condition. Currently we are forced to 
> write something like:
>     version (OSX) {} else {
>         /* ... */
>     }
> when it could be just:
>     version (!OSX) {
>         /* ... */
>     }
> I am aware that it was Walter’s intention to make the version 
> syntax simplistic, but I don’t think that allowing “!” would do 
> any harm.

There's a workaround: define bool enums for all version 
identifiers and use `static if` instead:

version (OSX)
     enum OSX = true;
else
     enum OSX = false;

static if (!OSX) {}

--
/Jacob Carlborg