Rustaceans at the border

> Rust “UB” is a smaller category than c/c++ because theres no formal standard for the language with multiple implementers.

It's not about multiple implementations, at most that would lead to having Implementation Defined Behaviour which is much less scary, but in many cases there wouldn't be any difference since the additional implementations would just do the same thing.

C++ in particular is riddled with _intentional_ Undefined Behaviour. But even in the mundane C standard library trivial functions like abs() have Undefined Behaviour.