-preview=safer for D

[Kagamin]

On Saturday, 14 December 2024 at 10:20:34 UTC, Jonathan M Davis 
wrote:
> If I want a function to be @safe, I'll mark it with @safe, and 
> I'll get all of the appropriate checks.

It's not always trivial. For example, I have an array copy 
function, it takes two arrays and calls memmove on them. It's, 
like, 80% safe, but it's not obvious what it would take to make 
it safer.