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Add test case for using slice::fill with MaybeUninit

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This commit is contained in:
Katherine Philip 2021-08-30 13:19:50 -07:00
parent 6cfa773583
commit 8cecac2602
1 changed files with 9 additions and 0 deletions
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9
library/core/tests/slice.rs
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@ -2144,3 +2144,12 @@ fn test_slice_run_destructors() {
assert_eq!(x.get(), 1);
}
#[test]
fn test_slice_fill_with_uninit() {
// This should not UB. See #87891
use core::mem::MaybeUninit;
let mut a = [MaybeUninit::<u8>::uninit(); 10];
a.fill(MaybeUninit::uninit());
}