Clear an AdaptiveSet. Returns the cleared Set if col is a Set.
Set
col
Tip: If you don't want to reuse a cleared Set, just s = null.
s = null
An AdaptiveSet.
The updated AdaptiveSet.
Clear an AdaptiveSet. Returns the cleared
Setifcolis aSet.Tip: If you don't want to reuse a cleared
Set, justs = null.