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Doc example improvements for slice::windows. #34988

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Jul 24, 2016
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Doc example improvements for slice::windows. #34988

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21 changes: 14 additions & 7 deletions src/libcollections/slice.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -544,14 +544,21 @@ impl<T> [T] {
///
/// # Example
///
/// Print the adjacent pairs of a slice (i.e. `[1,2]`, `[2,3]`,
/// `[3,4]`):
/// ```
/// let slice = ['r', 'u', 's', 't'];
/// let mut iter = slice.windows(2);
/// assert_eq!(iter.next().unwrap(), &['r', 'u']);
/// assert_eq!(iter.next().unwrap(), &['u', 's']);
/// assert_eq!(iter.next().unwrap(), &['s', 't']);
/// assert!(iter.next().is_none());
/// ```
///
/// ```rust
/// let v = &[1, 2, 3, 4];
/// for win in v.windows(2) {
/// println!("{:?}", win);
/// }
/// If the slice is shorter than `size`:
///
/// ```
/// let slice = ['f', 'o', 'o'];
/// let mut iter = slice.windows(4);
/// assert!(iter.next().is_none());
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
#[inline]
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