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Written by seri on 2024-08-24 at 20:33

Without checking, at opt-level=3, which of these will optimize away the unwrap, as max will always return Some when used with a non-zero-length array?

pub fn fna(x: [u8; 1024]) -> u8 {
    x.into_iter().max().unwrap()
}

pub fn fnb(x: [u8; 1024]) -> u8 {
    *x.iter().max().unwrap()
}

[#]rust #rustlang

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