1 files changed, 0 insertions, 62 deletions
diff --git a/src/tools/gftest/FMap.hs b/src/tools/gftest/FMap.hs
deleted file mode 100644
index f3a511706..000000000
--- a/src/tools/gftest/FMap.hs
+++ /dev/null
@@ -1,62 +0,0 @@
-module FMap where
-
---------------------------------------------------------------------------------
--- implementation
-
-data FMap a b = Ask a (FMap a b) (FMap a b) | Nil | Answer b
-  deriving ( Eq, Ord, Show )
-
-toList :: FMap a b -> [([a],b)]
-toList t = go [([],t)]
- where
-  go []                      = []
-  go ((xs,Ask x yes no):xts) = go ((x:xs,yes):(xs,no):xts)
-  go ((_ ,Nil)         :xts) = go xts
-  go ((xs,Answer z)    :xts) = (reverse xs,z) : go xts
-
-isNil :: FMap a b -> Bool
-isNil = null . toList
-
-nil :: FMap a b
-nil = Nil
-
-unit :: [a] -> b -> FMap a b
-unit []     y = Answer y
-unit (x:xs) y = Ask x (unit xs y) Nil
-
-covers :: Ord a => FMap a b -> [a] -> Bool
-Nil          `covers` _         = False
-_            `covers` []        = True
-Answer _     `covers` _         = False
-Ask x yes no `covers` zs@(y:ys) =
-  case x `compare` y of
-    LT -> (yes `covers` zs) || (no `covers` zs)
-    EQ -> yes `covers` ys
-    GT -> False
-
-ask :: a -> FMap a b -> FMap a b -> FMap a b
-ask x Nil Nil = Nil
-ask x s   t   = Ask x s t
-
-del :: Ord a => [a] -> FMap a b -> FMap a b
-del _  Nil                  = Nil
-del _  (Answer _)           = Nil
-del [] (Ask x yes no)       = ask x yes (del [] no)
-del (x:xs) t@(Ask y yes no) =
-  case x `compare` y of
-    LT -> del xs t
-    EQ -> ask y (del xs yes) (del xs no)
-    GT -> ask y yes (del (x:xs) no)
-
-add :: Ord a => [a] -> b -> FMap a b -> FMap a b
-add []       y Nil              = Answer y
-add (x:xs)   y Nil              = Ask x (add xs y Nil) Nil
-add xs@(_:_) y (Answer _)       = add xs y Nil
-add (x:xs)   y t@(Ask z yes no) =
-  case x `compare` z of
-    LT -> Ask x (add xs y Nil) (del xs t)
-    EQ -> Ask x (add xs y yes) (del xs no)
-    GT -> Ask z yes (add (x:xs) y no)
-
---------------------------------------------------------------------------------
-