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Rollup merge of #90034 - moxian:unzip-doc, r=cuviper

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Tiny tweak to Iterator::unzip() doc comment example.

It's easier to figure out what it's doing and which output elements map to which input ones if the matrix we are dealing with is rectangular 2x3 rather than square 2x2.
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Matthias Krüger 2021-10-19 05:40:56 +02:00 committed by GitHub
commit 5bcaf04cbb
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1 changed files with 3 additions and 3 deletions
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6
library/core/src/iter/traits/iterator.rs
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@ -2837,12 +2837,12 @@ pub trait Iterator {
/// Basic usage: /// Basic usage:
/// ///
/// ``` /// ```
/// let a = [(1, 2), (3, 4)]; /// let a = [(1, 2), (3, 4), (5, 6)];
/// ///
/// let (left, right): (Vec<_>, Vec<_>) = a.iter().cloned().unzip(); /// let (left, right): (Vec<_>, Vec<_>) = a.iter().cloned().unzip();
/// ///
/// assert_eq!(left, [1, 3]); /// assert_eq!(left, [1, 3, 5]);
/// assert_eq!(right, [2, 4]); /// assert_eq!(right, [2, 4, 6]);
/// ///
/// // you can also unzip multiple nested tuples at once /// // you can also unzip multiple nested tuples at once
/// let a = [(1, (2, 3)), (4, (5, 6))]; /// let a = [(1, (2, 3)), (4, (5, 6))];