Collect collects an interator into a slice.

CollectInto collects the elements of an iterator into a provided slice which is returned.

general helper, in this case created for DedupeIter[T,T].

convenience method for creating an Orderable implementation for a type dynamically by passing in a value and a comparison function This is useful for types that are not under our control, such as built-in types and for reducing boilerplate in testware/etc.

Iterators _must_ be sorted.

DedupeIter is a deduplicating iterator which creates an Iterator[B] from a sequence of Iterator[A].

Iterator is the basic iterator type with the common functions for advancing and retrieving the current value.