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NonNull cast should allow ?Sized #91115

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adsnaider opened this issue Nov 21, 2021 · 1 comment
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NonNull cast should allow ?Sized #91115

adsnaider opened this issue Nov 21, 2021 · 1 comment
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C-bug Category: This is a bug.

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@adsnaider
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Not sure if I should categorize this as a bug since this seems to be something that was overlooked. core::ptr::NonNull has the function pub const fn cast<U>(self) -> NonNull<U> that, as far as I can tell, should allow for U: ?Sized. Am I missing something here?
@adsnaider adsnaider added the C-bug Category: This is a bug. label Nov 21, 2021
@adsnaider
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I see that #60602 actually explains the reasoning. It would be nice then to have a cast_sliced function that casts NonNull<[T]> to NonNull<[U]>. But since that is a feature request, I think I'll close it here for now.

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@adsnaider