This brings back an implementation of #findPreviousPageOf: for the SkipList that uses the same approach as #findPageFor:, but comparing with < to stop before reaching the page that contains the key.
This allows us to use fast search to find the previousPage of a non-empty page with the same speed as looking up the page for a key.
This brings back an implementation of #findPreviousPageOf: for the SkipList that uses the same approach as #findPageFor:, but comparing with < to stop before reaching the page that contains the key.
This allows us to use fast search to find the previousPage of a non-empty page with the same speed as looking up the page for a key.