diff options
Diffstat (limited to 'src/liballoc/collections/vec_deque.rs')
| -rw-r--r-- | src/liballoc/collections/vec_deque.rs | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/src/liballoc/collections/vec_deque.rs b/src/liballoc/collections/vec_deque.rs index 9d56f17700a..69284fbf1b3 100644 --- a/src/liballoc/collections/vec_deque.rs +++ b/src/liballoc/collections/vec_deque.rs @@ -1876,6 +1876,7 @@ impl<T> VecDeque<T> { /// assert_eq!(buf2, [2, 3]); /// ``` #[inline] + #[must_use = "use `.truncate()` if you don't need the other half"] #[stable(feature = "split_off", since = "1.4.0")] pub fn split_off(&mut self, at: usize) -> Self { let len = self.len(); |