File: issue-18400.rs

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rustc 1.85.0%2Bdfsg2-3
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trait Set<T> {
    fn contains(&self, _: T) -> bool;
    fn set(&mut self, _: T);
}

impl<'a, T, S> Set<&'a [T]> for S where
    T: Copy,
    S: Set<T>,
{
    fn contains(&self, bits: &[T]) -> bool {
        bits.iter().all(|&bit| self.contains(bit))
    }

    fn set(&mut self, bits: &[T]) {
        for &bit in bits {
            self.set(bit)
        }
    }
}

fn main() {
    let bits: &[_] = &[0, 1];

    0.contains(bits);
    //~^ ERROR overflow
}