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by Groxx
9 days ago
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> > I don't know if Rust will ever attempt to fix this mistake > It was discussed many times, and the conclusion is: it is too expensive, and the default will only change if that will change (due to better optimizations and/or better hardware). It is not a mistake, but a conscious decision. There's also wrapping_add / saturating_add for anyone concerned about this. Ya want a specific behavior? Just tell the compiler! You can also use the type wrappers so it happens implicitly! https://doc.rust-lang.org/std/num/struct.Saturating.html (presumably this is optimizable on hardware that has operators for this, but idk if that happens yet) |
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That is exactly why Rust's behavior for +/- operators is a mistake and wrong. It should always panic and anyone that wants something different can specify that in code, where it's clear and explicit.