(skiplist-contains? skiplist key)
This predicate tests if a skip list contains a specific key. The following data types are valid keys:
#t or f.
> skiplist-contains?
#<primitive-procedure skiplist-contains?>
> (define s (skiplist-create))
s
> (skiplist-insert! s '00:00:00:00:00:00 11)
ok
> (skiplist-insert! s '00:00:00:00:00:01 "**DATA**")
ok
> (skiplist-contains? s '00:00:00:00:00:02)
#f
> (skiplist-contains? s '00:00:00:00:00:01)
#t
>