diff options
Diffstat (limited to 'library/core/src/array')
| -rw-r--r-- | library/core/src/array/iter.rs | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/library/core/src/array/iter.rs b/library/core/src/array/iter.rs index 004d1736b0f..f6616399610 100644 --- a/library/core/src/array/iter.rs +++ b/library/core/src/array/iter.rs @@ -129,6 +129,11 @@ impl<T, const N: usize> Iterator for IntoIter<T, N> { Fold: FnMut(Acc, Self::Item) -> Acc, { let data = &mut self.data; + // FIXME: This uses try_fold(&mut iter) instead of fold(iter) because the latter + // would go through the blanket `impl Iterator for &mut I` implementation + // which lacks inline annotations on its methods and adding those would be a larger + // perturbation than using try_fold here. + // Whether it would be beneficial to add those annotations should be investigated separately. (&mut self.alive) .try_fold::<_, _, Result<_, !>>(init, |acc, idx| { // SAFETY: idx is obtained by folding over the `alive` range, which implies the |