fn next(&mut self) -> Option<(&'a K, &'a V)>

fn size_hint(&self) -> (uint, Option<uint>)

fn chain<U: Iterator<A>>(self, other: U) -> Chain<Self, U>

fn zip<B, U: Iterator<B>>(self, other: U) -> Zip<Self, U>

fn map<B>(self, f: |A|: 'r -> B) -> Map<'r, A, B, Self>

fn filter<A>(self, predicate: |&A|: 'r -> bool) -> Filter<'r, A, Self>

fn filter_map<B>(self, f: |A|: 'r -> Option<B>) -> FilterMap<'r, A, B, Self>

fn enumerate<A>(self) -> Enumerate<Self>

fn peekable<A>(self) -> Peekable<A, Self>

fn skip_while<A>(self, predicate: |&A|: 'r -> bool) -> SkipWhile<'r, A, Self>

fn take_while<A>(self, predicate: |&A|: 'r -> bool) -> TakeWhile<'r, A, Self>

fn skip<A>(self, n: uint) -> Skip<Self>

fn take<A>(self, n: uint) -> Take<Self>

fn scan<St, B>(self, initial_state: St, f: |&mut St, A|: 'r -> Option<B>) -> Scan<'r, A, B, Self, St>

fn flat_map<B, U: Iterator<B>>(self, f: |A|: 'r -> U) -> FlatMap<'r, A, Self, U>

fn fuse<A>(self) -> Fuse<Self>

fn inspect<A>(self, f: |&A|: 'r) -> Inspect<'r, A, Self>

fn by_ref<A>(&'r mut self) -> ByRef<'r, Self>

fn advance<A>(&mut self, f: |A| -> bool) -> bool

fn collect<B: FromIterator<A>>(&mut self) -> B

fn nth<A>(&mut self, n: uint) -> Option<A>

fn last<A>(&mut self) -> Option<A>

fn fold<B>(&mut self, init: B, f: |B, A| -> B) -> B

fn count<A>(&mut self) -> uint

fn all<A>(&mut self, f: |A| -> bool) -> bool

fn any<A>(&mut self, f: |A| -> bool) -> bool

fn find<A>(&mut self, predicate: |&A| -> bool) -> Option<A>

fn position<A>(&mut self, predicate: |A| -> bool) -> Option<uint>

fn max_by<B: Ord>(&mut self, f: |&A| -> B) -> Option<A>

fn min_by<B: Ord>(&mut self, f: |&A| -> B) -> Option<A>