Discussion about integer overflow

[kristoffer.carlsson]

@StefanKarpinski

That’s theoretically doable, but it has a problem that there does exist code that intentionally relies on integer overflow behavior. In order to implement such a mode, a distinction would have to be introduced between “operations that are not meant to wrap” and “operations that are meant to wrap”.

Just as a datapoint, integer overflow in Rust panics in debug mode while it wrap around in release mode. And there is precisely a special operator if you intend to wrap around so it doesn’t panic even in debug mode. Julia code doesn’t really have a debug mode now but could be worth thinking about adopting something like that.