Implementing C23 _Float16 in ImportC

[Bruce Carneal]

On Tuesday, 14 January 2025 at 14:34:13 UTC, Richard (Rikki) 
Andrew Cattermole wrote:
> ...
>
> A new policy, that anyone could implement a C numeric type as 
> long as it bound to a druntime module, and not exposed to D. D 
> would need a DIP due to the identifier needing confirmation.
>
> 

Is this a good path to full integration with the back ends?  I'd 
love to see auto vectorization and other optimizations when using 
the new types.