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update char_indices example to highlight big chars #47036

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Dec 28, 2017
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update char_indices example to highlight big chars #47036

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8 changes: 6 additions & 2 deletions src/liballoc/str.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -719,13 +719,17 @@ impl str {
/// Remember, [`char`]s may not match your human intuition about characters:
///
/// ```
/// let y = "y̆";
/// let yes = "y̆es";
///
/// let mut char_indices = y.char_indices();
/// let mut char_indices = yes.char_indices();
///
/// assert_eq!(Some((0, 'y')), char_indices.next()); // not (0, 'y̆')
/// assert_eq!(Some((1, '\u{0306}')), char_indices.next());
///
/// // note the 3 here - the last character took up two bytes
/// assert_eq!(Some((3, 'e')), char_indices.next());
/// assert_eq!(Some((4, 's')), char_indices.next());
///
/// assert_eq!(None, char_indices.next());
/// ```
#[stable(feature = "rust1", since = "1.0.0")]
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