diff options
| -rw-r--r-- | library/core/src/array/mod.rs | 1 | ||||
| -rw-r--r-- | library/coretests/tests/array.rs | 2 |
2 files changed, 2 insertions, 1 deletions
diff --git a/library/core/src/array/mod.rs b/library/core/src/array/mod.rs index efa7bed7c8e..4476e3f7923 100644 --- a/library/core/src/array/mod.rs +++ b/library/core/src/array/mod.rs @@ -531,6 +531,7 @@ impl<T, const N: usize> [T; N] { /// let y = x.map(|v| v.len()); /// assert_eq!(y, [6, 9, 3, 3]); /// ``` + #[must_use] #[stable(feature = "array_map", since = "1.55.0")] pub fn map<F, U>(self, f: F) -> [U; N] where diff --git a/library/coretests/tests/array.rs b/library/coretests/tests/array.rs index b6d18f1ec38..30ccbbc3203 100644 --- a/library/coretests/tests/array.rs +++ b/library/coretests/tests/array.rs @@ -325,7 +325,7 @@ fn array_map_drop_safety() { let success = std::panic::catch_unwind(|| { let items = [0; 10]; let mut nth = 0; - items.map(|_| { + let _ = items.map(|_| { assert!(nth < num_to_create); nth += 1; DropCounter |