this post was submitted on 30 Oct 2025
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Announcing Rust 1.91.0 | Rust Blog (blog.rust-lang.org)
submitted 4 days ago by jwr1@kbin.earth to c/rust@programming.dev
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[–] FizzyOrange@programming.dev 3 points 4 days ago (1 children)

The non-strict versions also panic by default, but only in debug mode. So if you were willing to use abs() you should be willing to use strict_abs().

Arguably a bit of a mistake to have the "obvious" function names be surprisingly unsafe, but I guess it's too late to fix that.

[–] flying_sheep@lemmy.ml 1 points 3 days ago (1 children)

I think this is where safety and performance are actually in conflict.

I think guaranteeing a panic leads to much worse code gen in this case.

[–] FizzyOrange@programming.dev 1 points 3 days ago

Yes that's true, but the point is you should have to opt in to surprising or risky behaviour.