default initialization of char arrays

[Ogion]

On Wednesday, 10 September 2025 at 23:35:29 UTC, JN wrote:
> I feel like in such scenario a warning should be issued, or 
> even compilation error, "static array initialization expects 10 
> values, only 1 provided". Sooner or later someone will hit the 
> same issue again and spend hours debugging why the array 
> doesn't get zeroed.

Yep, the syntax should be more explicit. Something like this:
```D
float[10] x = [42, ...];   // [42, NaN, ..., NaN]
float[10] y = [1:42, ...]; // [NaN, 42, NaN, ..., NaN]
```