Is there a formula for overflow?

[Basile B.]

On Wednesday, 30 November 2022 at 03:19:49 UTC, Basile B. wrote:
> [...]
> It's always a wraparound (think modulo) but your examples with 
> negative number can be explained because there are hidden 
> unsigned to signed implicit convertions.
> That the only special things D does.

forgot to say, you can use the dmd flag -vcg-ast to see the 
hidden rewrites