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Add example for iter chain struct #77409

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Merged
merged 2 commits into from
Oct 2, 2020
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Add example for iter chain struct #77409

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676e4f1
Add example for iter chain struct
pickfire Oct 1, 2020
aea3f8d
Remove trailing whitespace in iter chain doc
pickfire Oct 1, 2020
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11 changes: 11 additions & 0 deletions library/core/src/iter/adapters/chain.rs
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Expand Up @@ -6,6 +6,17 @@ use crate::usize;
///
/// This `struct` is created by [`Iterator::chain`]. See its documentation
/// for more.
///
/// # Examples
///
/// ```
/// use std::iter::Chain;
/// use std::slice::Iter;
///
/// let a1 = [1, 2, 3];
/// let a2 = [4, 5, 6];
/// let iter: Chain<Iter<_>, Iter<_>> = a1.iter().chain(a2.iter());
/// ```
#[derive(Clone, Debug)]
#[must_use = "iterators are lazy and do nothing unless consumed"]
#[stable(feature = "rust1", since = "1.0.0")]
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