[jstimpfle]

I understand that. It makes no practical difference. 99,99% of my additions don't rely on signed overflow for example, and if I'd ever need it there are ways to get just it.

Or tell me how you write a Rust program differently given that signed overflow is apparently defined? I bet you write it exactly the same way, and you get pretty much the same behaviour in practice. And we're even only debating actual overflow situations, meaning there is a bug whatever the compiled behaviour is.

C the language doesn't even guarantee that the machine has native integers with 8, 16, 32, 64 bits etc, that a cacheline is 64 bits, that a page is 4K, and here I am, writing programs for exactly that.