Range Redesign: Empty Ranges

[Ogi]

On Wednesday, 6 March 2024 at 12:20:40 UTC, Atila Neves wrote:
I thought I'd found a clever way to
> make this work for classes but apparently this crashes, much to 
> my surprise:
>
> ```d
> class Class {
>     bool empty() @safe @nogc pure nothrow scope const {
>         return this is null;
>     }
> }
>
> Class c;
> assert(c.empty);
> ```

I’m surprised that the equivalent C++ code *doesn’t* crash (at 
least on my machine):
```
Class* c = nullptr;
assert(c->empty());

That’s still UB though.