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3 changes: 3 additions & 0 deletions library/core/src/mem/maybe_uninit.rs
Original file line number Diff line number Diff line change
Expand Up @@ -351,6 +351,9 @@ impl<T> MaybeUninit<T> {
/// but `MaybeUninit<&'static i32>::zeroed()` is not because references must not
/// be null.
///
/// Note that if `T` has padding bytes, those bytes are *not* preserved when the
/// `MaybeUninit<T>` value is returned from this function, so those bytes will *not* be zeroed.
///
/// Note that dropping a `MaybeUninit<T>` will never call `T`'s drop code.
/// It is your responsibility to make sure `T` gets dropped if it got initialized.
///
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