- skiplist->list slsprocedure
- skiplist->list sls levelprocedure
-
requires (and (skiplist? sls) (fixnum? level) (fx<= 0 level) ; default (fx= level 0) (fx< level (skiplist-height sls))) ensures ((list-of? (skiplist-item? sls)) result)
requires (and (skiplist? sls) (fixnum? level) (fx<= 0 level) ; default (fx= level 0) (fx< level (skiplist-height sls))) ensures ((list-of? (skiplist-item? sls)) result)