Update iterator.rs to use arrays by value #136183
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Update examples to no longer avoid iterating arrays for rust-lang#84513
Amanieu
reviewed
May 3, 2025
| /// ``` | ||
| /// | ||
| /// Flattening only removes one level of nesting at a time: | ||
| /// | ||
| /// ``` | ||
| /// let d3 = [[[1, 2], [3, 4]], [[5, 6], [7, 8]]]; | ||
| /// | ||
| /// let d2 = d3.iter().flatten().collect::<Vec<_>>(); | ||
| /// assert_eq!(d2, [&[1, 2], &[3, 4], &[5, 6], &[7, 8]]); | ||
| /// let d2: Vec<_> = d3.clone().into_iter().flatten().collect(); |
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I don't think this is reasonable here: we don't want to encourage .clone().into_iter() when .iter() is sufficient.
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Hmm, that is a good point. I'll have a look.
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Update examples to no longer avoid iterating arrays for #84513