File: issue-80309-safe.rs

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rustc 1.88.0%2Bdfsg1-1
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//@ run-pass
//@ compile-flags: -O

// Regression test for issue #80309

pub fn zero(x: usize) -> usize {
    std::ptr::null::<i8>().wrapping_add(x) as usize - x
}
pub fn qux(x: &[i8]) -> i8 {
    x[zero(x.as_ptr() as usize)]
}

fn main() {
    let z = vec![42, 43];
    println!("{}", qux(&z));
}