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Implement ExactSizeIterator for Values. #877

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Feb 27, 2017
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Implement ExactSizeIterator for Values. #877

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2 changes: 2 additions & 0 deletions src/args/arg_matches.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -568,6 +568,8 @@ impl<'a> DoubleEndedIterator for Values<'a> {
fn next_back(&mut self) -> Option<&'a str> { self.iter.next_back() }
}

impl<'a> ExactSizeIterator for Values<'a> {}

/// An iterator over the key-value pairs of a map.
#[derive(Clone)]
pub struct Iter<'a, V: 'a> {
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