Rollup merge of #100462 - zohnannor:master, r=thomcc
Clarify `array::from_fn` documentation I've seen quite a few of people on social media confused of where the length of array is coming from in the newly stabilized `array::from_fn` example. This PR tries to clarify the documentation on this.
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@ -32,6 +32,10 @@ pub use iter::IntoIter;
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/// # Example
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///
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/// ```rust
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/// // type inference is helping us here, the way `from_fn` knows how many
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/// // elements to produce is the length of array down there: only arrays of
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/// // equal lengths can be compared, so the const generic parameter `N` is
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/// // inferred to be 5, thus creating array of 5 elements.
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/// let array = core::array::from_fn(|i| i);
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/// assert_eq!(array, [0, 1, 2, 3, 4]);
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/// ```
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