diff options
| -rw-r--r-- | library/core/src/cell.rs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/library/core/src/cell.rs b/library/core/src/cell.rs index e8590ab1158..0e719e169de 100644 --- a/library/core/src/cell.rs +++ b/library/core/src/cell.rs @@ -434,6 +434,8 @@ impl<T> Cell<T> { #[inline] #[stable(feature = "move_cell", since = "1.17.0")] pub fn swap(&self, other: &Self) { + // This function documents that it *will* panic, and intrinsics::is_nonoverlapping doesn't + // do the check in const, so trying to use it here would be inviting unnecessary fragility. fn is_nonoverlapping<T>(src: *const T, dst: *const T) -> bool { let src_usize = src.addr(); let dst_usize = dst.addr(); |