[foldr]

Hmm, no, my comment didn't say any of those things. Specifically, I did not comment on (and do not care if) unsafe blocks are a Rust invention, and I made no comparison between Rust and C or C++.

[pjmlp]

Maybe I misunderstood the point being made, then. Sorry about that.

https://news.ycombinator.com/item?id=47814965