Module itertools::structs

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The concrete iterator types.

Structs

  • A “meta iterator adaptor”. Its closure receives a reference to the iterator and may pick off as many elements as it likes, to produce the next iterator element.
  • An iterator for the elements in a single chunk.
  • An iterator that yields the Chunk iterators.
  • An iterator over all windows, wrapping back to the first elements when the window would otherwise exceed the length of the iterator, producing tuples of a specific size.
  • An iterator to iterate through all the k-length combinations in an iterator.
  • An iterator to iterate through all the n-length combinations in an iterator, with replacement.
  • An iterator that maps an iterator of tuples like ((A, B), C) to an iterator of (A, B, C).
  • Iterator returned for the error case of Itertools::exactly_one() This iterator yields exactly the same elements as the input iterator.
  • An iterator adapter to filter and apply a transformation on values within a nested Result::Ok.
  • An iterator adapter to filter values within a nested Result::Ok.
  • An iterator adaptor that flattens Result::Ok values and allows Result::Err values through unchanged.
  • Format all iterator elements lazily, separated by sep.
  • Format all iterator elements lazily, separated by sep.
  • An iterator for the elements in a single group.
  • GroupBy is the storage for the lazy grouping operation.
  • GroupingMap is an intermediate struct for efficient group-and-fold operations. It groups elements by their key and at the same time fold each group using some aggregating operation.
  • An iterator that yields the Group iterators.
  • An iterator adaptor that alternates elements from two iterators until both run out.
  • An iterator adaptor that alternates elements from the two iterators until one of them runs out.
  • An iterator adaptor to insert a particular value created by a function between each element of the adapted iterator.
  • ChunkLazy is the storage for a lazy chunking operation.
  • An iterator that infinitely applies function to value and yields results.
  • An iterator adaptor that merges an abitrary number of base iterators according to an ordering function.
  • An iterator adaptor that merges the two base iterators in ascending order. If both base iterators are sorted (ascending), the result is sorted.
  • See multipeek() for more information.
  • An iterator adaptor that iterates over the cartesian product of multiple iterators of type I.
  • An iterator adaptor that pads a sequence to a minimum length by filling missing elements using a closure.
  • See peek_nth() for more information.
  • An iterator adaptor that takes items while a closure returns true.
  • An iterator adaptor that iterates through all the k-permutations of the elements from an iterator.
  • An iterator adapter to get the positions of each element that matches a predicate.
  • An iterator to iterate through the powerset of the elements from an iterator.
  • An iterator that produces only the T values as long as the inner iterator produces Ok(T).
  • An iterator adaptor that iterates over the cartesian product of the element sets of two iterators I and J.
  • An iterator adaptor that allows putting back a single item to the front of the iterator.
  • An iterator adaptor that allows putting multiple items in front of the iterator.
  • A wrapper for Rc<RefCell<I>>, that implements the Iterator trait.
  • RepeatCallDeprecated
    See repeat_call for more information.
  • An iterator that produces n repetitions of an element.
  • StepDeprecated
    An iterator adaptor that steps a number elements in the base iterator for each iteration.
  • An iterator adaptor that consumes elements while the given predicate is true, including the element for which the predicate first returned false.
  • An iterator adaptor that borrows from a Clone-able iterator to only pick off elements while the predicate returns true.
  • One half of an iterator pair where both return the same elements.
  • An iterator over a incomplete tuple.
  • An iterator to iterate through all combinations in a Clone-able iterator that produces tuples of a specific size.
  • An iterator over all contiguous windows that produces tuples of a specific size.
  • An iterator that groups the items in tuples of a specific size.
  • See unfold for more information.
  • An iterator adapter to filter out duplicate elements.
  • An iterator adapter to filter out duplicate elements.
  • An iterator adapter to apply a mutating function to each element before yielding it.
  • An iterator adaptor that filters Option<A> iterator elements and produces A. Stops on the first None encountered.
  • An iterator adaptor that wraps each element in an Position.
  • See multizip for more information.
  • An iterator which iterates two other iterators simultaneously
  • An iterator which iterates two other iterators simultaneously

Type Aliases

  • An iterator adaptor that may join together adjacent elements.
  • An iterator adaptor that removes repeated duplicates.
  • An iterator adaptor that removes repeated duplicates, determining equality using a comparison function.
  • An iterator adaptor that removes repeated duplicates, while keeping a count of how many repeated elements were present. This will determine equality using a comparison function.
  • An iterator adaptor that removes repeated duplicates, while keeping a count of how many repeated elements were present.
  • An iterator adapter to filter out duplicate elements.
  • An iterator adapter to filter for duplicate elements.
  • GroupingMapBy is an intermediate struct for efficient group-and-fold operations.
  • An iterator adaptor to insert a particular value between each element of the adapted iterator.
  • An iterator adaptor that merges an abitrary number of base iterators in ascending order. If all base iterators are sorted (ascending), the result is sorted.
  • An iterator adapter to apply Into conversion to each element.
  • An iterator adapter to apply a transformation within a nested Result::Ok.
  • MapResultsDeprecated
    See MapOk.
  • An iterator adaptor that merges the two base iterators in ascending order. If both base iterators are sorted (ascending), the result is sorted.
  • An iterator adaptor that merge-joins items from the two base iterators in ascending order.