diff options
| -rw-r--r-- | library/core/src/iter/adapters/array_chunks.rs | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/library/core/src/iter/adapters/array_chunks.rs b/library/core/src/iter/adapters/array_chunks.rs index 8c68ea114db..8f1744fc5fb 100644 --- a/library/core/src/iter/adapters/array_chunks.rs +++ b/library/core/src/iter/adapters/array_chunks.rs @@ -34,9 +34,22 @@ where /// Returns an iterator over the remaining elements of the original iterator /// that are not going to be returned by this iterator. The returned /// iterator will yield at most `N-1` elements. + /// + /// # Example + /// ``` + /// # // Also serves as a regression test for https://github.com/rust-lang/rust/issues/123333 + /// # #![feature(iter_array_chunks)] + /// let x = [1,2,3,4,5].into_iter().array_chunks::<2>(); + /// let mut rem = x.into_remainder().unwrap(); + /// assert_eq!(rem.next(), Some(5)); + /// assert_eq!(rem.next(), None); + /// ``` #[unstable(feature = "iter_array_chunks", reason = "recently added", issue = "100450")] #[inline] - pub fn into_remainder(self) -> Option<array::IntoIter<I::Item, N>> { + pub fn into_remainder(mut self) -> Option<array::IntoIter<I::Item, N>> { + if self.remainder.is_none() { + while let Some(_) = self.next() {} + } self.remainder } } |