diff options
Diffstat (limited to 'library/core/src/slice')
| -rw-r--r-- | library/core/src/slice/mod.rs | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/library/core/src/slice/mod.rs b/library/core/src/slice/mod.rs index de8d7fc29dc..b06b6e93373 100644 --- a/library/core/src/slice/mod.rs +++ b/library/core/src/slice/mod.rs @@ -542,10 +542,9 @@ impl<T> [T] { #[stable(feature = "rust1", since = "1.0.0")] #[inline] pub fn swap(&mut self, a: usize, b: usize) { - // Can't take two mutable loans from one vector, so instead just cast - // them to their raw pointers to do the swap. - let pa: *mut T = &mut self[a]; - let pb: *mut T = &mut self[b]; + // Can't take two mutable loans from one vector, so instead use raw pointers. + let pa = ptr::raw_mut!(self[a]); + let pb = ptr::raw_mut!(self[b]); // SAFETY: `pa` and `pb` have been created from safe mutable references and refer // to elements in the slice and therefore are guaranteed to be valid and aligned. // Note that accessing the elements behind `a` and `b` is checked and will |