float init 0 request

[Steven Schveighoffer]

On Wednesday, 19 August 2026 at 19:57:57 UTC, Walter Bright wrote:
> All in all, D's semantic selections for integral types are 
> better than anyone else's for type safety and convenience.

```d
foreach(dchar d; "Über") {
    writeln(d);
}

foreach(dchar d; "Über".byCodeUnit) {
    writeln(d);
}
```

The first prints 4 code points, each of the characters listed.

The second prints 5 code points, the first two are the *integer 
promotion* of the two utf8 code units that encode "Ü" to dchar, 
which is nonsense.

The second should not compile. It should be an error to 
implicitly promote char to dchar. It's a nonsense conversion that 
is allowed implicitly.

Promoting to int is fine. But dchar is not an int.

If you think this example is rare, wait until we remove 
autodecoding.

-Steve