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From<Alignment> for usize & NonZeroUsize #102862

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Merged
bors merged 1 commit into from
Oct 10, 2022
+17 −1
Merged

From<Alignment> for usize & NonZeroUsize #102862

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16 changes: 16 additions & 0 deletions library/core/src/ptr/alignment.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -146,6 +146,22 @@ impl TryFrom<usize> for Alignment {
}
}

#[unstable(feature = "ptr_alignment_type", issue = "102070")]
impl From<Alignment> for NonZeroUsize {
#[inline]
fn from(align: Alignment) -> NonZeroUsize {
align.as_nonzero()
}
}

#[unstable(feature = "ptr_alignment_type", issue = "102070")]
impl From<Alignment> for usize {
#[inline]
fn from(align: Alignment) -> usize {
align.as_usize()
}
}

#[unstable(feature = "ptr_alignment_type", issue = "102070")]
impl cmp::Ord for Alignment {
#[inline]
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2 changes: 1 addition & 1 deletion src/test/ui/try-trait/bad-interconversion.stderr
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Expand Up @@ -16,7 +16,7 @@ LL | Ok(Err(123_i32)?)
<f64 as From<i16>>
<f64 as From<i32>>
<f64 as From<i8>>
and 67 others
and 68 others
= note: required for `Result<u64, u8>` to implement `FromResidual<Result<Infallible, i32>>`

error[E0277]: the `?` operator can only be used on `Result`s, not `Option`s, in a function that returns `Result`
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