diff options
Diffstat (limited to 'src/liballoc/arc.rs')
| -rw-r--r-- | src/liballoc/arc.rs | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/src/liballoc/arc.rs b/src/liballoc/arc.rs index d6096d58947..ca78142bc1d 100644 --- a/src/liballoc/arc.rs +++ b/src/liballoc/arc.rs @@ -319,11 +319,14 @@ impl<T: ?Sized> Arc<T> { /// Gets the number of [`Weak`][weak] pointers to this value. /// - /// Be careful how you use this information, because another thread - /// may change the weak count at any time. - /// /// [weak]: struct.Weak.html /// + /// # Safety + /// + /// This method by itself is safe, but using it correctly requires extra care. + /// Another thread can change the weak count at any time, + /// including potentially between calling this method and acting on the result. + /// /// # Examples /// /// ``` @@ -347,8 +350,11 @@ impl<T: ?Sized> Arc<T> { /// Gets the number of strong (`Arc`) pointers to this value. /// - /// Be careful how you use this information, because another thread - /// may change the strong count at any time. + /// # Safety + /// + /// This method by itself is safe, but using it correctly requires extra care. + /// Another thread can change the strong count at any time, + /// including potentially between calling this method and acting on the result. /// /// # Examples /// |