doc: bindings not needed for this example
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1 changed files with 10 additions and 28 deletions
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@ -2756,20 +2756,11 @@ pub trait Extend<A> {
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///
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///
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/// let mut iter = numbers.iter();
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/// let mut iter = numbers.iter();
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///
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///
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/// let n = iter.next();
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/// assert_eq!(Some(&1), iter.next());
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/// assert_eq!(Some(&1), n);
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/// assert_eq!(Some(&3), iter.next_back());
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///
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/// assert_eq!(Some(&2), iter.next_back());
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/// let n = iter.next_back();
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/// assert_eq!(None, iter.next());
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/// assert_eq!(Some(&3), n);
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/// assert_eq!(None, iter.next_back());
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///
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/// let n = iter.next_back();
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/// assert_eq!(Some(&2), n);
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///
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/// let n = iter.next();
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/// assert_eq!(None, n);
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///
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/// let n = iter.next_back();
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/// assert_eq!(None, n);
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/// ```
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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#[stable(feature = "rust1", since = "1.0.0")]
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pub trait DoubleEndedIterator: Iterator {
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pub trait DoubleEndedIterator: Iterator {
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@ -2789,20 +2780,11 @@ pub trait DoubleEndedIterator: Iterator {
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///
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///
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/// let mut iter = numbers.iter();
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/// let mut iter = numbers.iter();
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///
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///
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/// let n = iter.next();
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/// assert_eq!(Some(&1), iter.next());
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/// assert_eq!(Some(&1), n);
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/// assert_eq!(Some(&3), iter.next_back());
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///
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/// assert_eq!(Some(&2), iter.next_back());
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/// let n = iter.next_back();
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/// assert_eq!(None, iter.next());
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/// assert_eq!(Some(&3), n);
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/// assert_eq!(None, iter.next_back());
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///
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/// let n = iter.next_back();
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/// assert_eq!(Some(&2), n);
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///
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/// let n = iter.next();
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/// assert_eq!(None, n);
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///
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/// let n = iter.next_back();
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/// assert_eq!(None, n);
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/// ```
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/// ```
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#[stable(feature = "rust1", since = "1.0.0")]
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#[stable(feature = "rust1", since = "1.0.0")]
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fn next_back(&mut self) -> Option<Self::Item>;
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fn next_back(&mut self) -> Option<Self::Item>;
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