diff options
Diffstat (limited to 'src/liballoc')
| -rw-r--r-- | src/liballoc/rc.rs | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/liballoc/rc.rs b/src/liballoc/rc.rs index 3dfafd0a378..d461eeea0b7 100644 --- a/src/liballoc/rc.rs +++ b/src/liballoc/rc.rs @@ -734,6 +734,8 @@ pub struct Weak<T: ?Sized> { impl<T: ?Sized> !marker::Send for Weak<T> {} impl<T: ?Sized> !marker::Sync for Weak<T> {} +impl<T: ?Sized+Unsize<U>, U: ?Sized> CoerceUnsized<Weak<U>> for Weak<T> {} + #[unstable(feature = "rc_weak", reason = "Weak pointers may not belong in this module.")] impl<T: ?Sized> Weak<T> { |