diff options
Diffstat (limited to 'library')
| -rw-r--r-- | library/core/src/slice/mod.rs | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/library/core/src/slice/mod.rs b/library/core/src/slice/mod.rs index 8bd2ed45c0a..2c469f61854 100644 --- a/library/core/src/slice/mod.rs +++ b/library/core/src/slice/mod.rs @@ -1002,6 +1002,17 @@ impl<T> [T] { /// assert_eq!(chunks, &[['l', 'o'], ['r', 'e']]); /// assert_eq!(remainder, &['m']); /// ``` + /// + /// If you expect the slice to be an exact multiple, you can combine + /// `let`-`else` with an empty slice pattern: + /// ``` + /// #![feature(slice_as_chunks)] + /// let slice = ['R', 'u', 's', 't']; + /// let (chunks, []) = slice.as_chunks::<2>() else { + /// panic!("slice didn't have even length") + /// }; + /// assert_eq!(chunks, &[['R', 'u'], ['s', 't']]); + /// ``` #[unstable(feature = "slice_as_chunks", issue = "74985")] #[inline] #[must_use] |