Crate backtracking_iterator
source ·Structs
A wrapper around an existing iterator to extend it with backtracking functionality
A backwalk through a
BacktrackingIterator’s history. Yields references
to items in the history, and can be used to walk back to a desired point.
The current position is before the most-recently-yielded element. To restart
a BacktrackingIterator at the current position of the backwalk, use the
history_position() method.