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Update example code of std::array::from_fn #156354

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rust-bors merged 1 commit into from
May 9, 2026
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Update example code of std::array::from_fn #156354

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6 changes: 2 additions & 4 deletions library/core/src/array/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -90,10 +90,8 @@ pub fn repeat<T: Clone, const N: usize>(val: T) -> [T; N] {
/// You can also capture things, for example to create an array full of clones
/// where you can't just use `[item; N]` because it's not `Copy`:
/// ```
/// # // TBH `array::repeat` would be better for this, but it's not stable yet.
/// let my_string = String::from("Hello");
/// let clones: [String; 42] = std::array::from_fn(|_| my_string.clone());
/// assert!(clones.iter().all(|x| *x == my_string));
/// let my_string: [String; 2] = std::array::from_fn(|i| format!("Hello {i}"));
/// assert_eq!(my_string, ["Hello 0", "Hello 1"]);
/// ```
///
/// The array is generated in ascending index order, starting from the front
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