Re: [PATCH v9 06/27] rust: add C helpers

Miguel Ojeda
2022-08-18T17:06:38Z

On Thu, Aug 18, 2022 at 6:08 PM Kees Cook <keescook@chromium.org> wrote:
>
> Please, no UB. I will take a panic over UB any day. It'd be best to
> handle things with some error path, but those are the rare exception.
>
> C is riddled with UB and it's just terrible. Let's make sure we don't
> continue that mistake. :)

I definitely agree on avoiding UB :)

> The simple answer is that if an "impossible" situation can be recovered
> from, it should error instead of panic. As long as that's the explicit
> design goal, I think we're good. Yes there will be cases where it is
> really and truly unrecoverable, but those will be rare and can be well
> documented.

Yeah, that is the goal and we always take that into account, but there
are always tricky cases which is best to consider case-by-case.

Cheers,
Miguel