Rollup merge of #102862 - scottmcm:more-alignment-traits, r=thomcc

From<Alignment> for usize & NonZeroUsize Since you mentioned these two in #102072 (comment), r? `@thomcc` Tracking Issue: #102070
rust-lang · Oct 10, 2022 · 4d5b4a8 · 4d5b4a8
2 parents efbef07 + 0718aec
commit 4d5b4a8
Show file tree

Hide file tree

Showing 2 changed files with 17 additions and 1 deletion.
diff --git a/library/core/src/ptr/alignment.rs b/library/core/src/ptr/alignment.rs
@@ -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]

diff --git a/src/test/ui/try-trait/bad-interconversion.stderr b/src/test/ui/try-trait/bad-interconversion.stderr
@@ -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`