--------------------------------------client module (separate file)

module Main where
import Searchtree           -- improt complete export of Searchtree

----------------------------------------------------------use e.g.:

{-
Prelude> :l Main.hs
Reading file "Main.hs":
Reading file "Searchtree.hs":
Reading file "Main.hs":

Hugs session for:
/usr/local/share/hugs/lib/Prelude.hs
Searchtree.hs
Main.hs
Main> (sTreeToList.listToSTree) [1,-1,0,2,-2]
[-2, -1, 0, 1, 2]
Main> sTreeToList (insertSTree 2 Nil)  --insertSTree is hidden!
ERROR: Undefined variable "insertSTree"
Main> sTreeToList Nil         -- constructors are hidden!
ERROR: Undefined constructor function "Nil"
-}