diff options
Diffstat (limited to 'library/std/src/io/error/repr_bitpacked.rs')
| -rw-r--r-- | library/std/src/io/error/repr_bitpacked.rs | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/library/std/src/io/error/repr_bitpacked.rs b/library/std/src/io/error/repr_bitpacked.rs index a5cefe2292b..fbb74967df3 100644 --- a/library/std/src/io/error/repr_bitpacked.rs +++ b/library/std/src/io/error/repr_bitpacked.rs @@ -267,11 +267,14 @@ where // Using this rather than unwrap meaningfully improves the code // for callers which only care about one variant (usually // `Custom`) - core::hint::unreachable_unchecked(); + unsafe { core::hint::unreachable_unchecked() }; }); ErrorData::Simple(kind) } - TAG_SIMPLE_MESSAGE => ErrorData::SimpleMessage(&*ptr.cast::<SimpleMessage>().as_ptr()), + TAG_SIMPLE_MESSAGE => { + // SAFETY: per tag + unsafe { ErrorData::SimpleMessage(&*ptr.cast::<SimpleMessage>().as_ptr()) } + } TAG_CUSTOM => { // It would be correct for us to use `ptr::byte_sub` here (see the // comment above the `wrapping_add` call in `new_custom` for why), |