First commit of partial RosettaCode contents.

Pushing this for testing purposes. Lots of work still needed.

Task/Infinity/Haskell/infinity-2.hs

@@ -0,0 +1,4 @@
+*Main> infinity :: Float
+Infinity
+*Main> infinity :: Double
+Infinity

Task/Infinity/Haskell/infinity-3.hs

@@ -0,0 +1,4 @@
+Prelude> 1 / 0 :: Float
+Infinity
+Prelude> 1 / 0 :: Double
+Infinity

Task/Infinity/Haskell/infinity-4.hs

@@ -0,0 +1,4 @@
+Prelude> read "Infinity" :: Float
+Infinity
+Prelude> read "Infinity" :: Double
+Infinity

Task/Infinity/Haskell/infinity.hs

@@ -0,0 +1,8 @@
+maxRealFloat :: RealFloat a => a -> a
+maxRealFloat x = encodeFloat b (e-1) `asTypeOf` x where
+  b     = floatRadix x - 1
+  (_,e) = floatRange x
+
+infinity :: RealFloat a => a
+infinity = if isInfinite inf then inf else maxRealFloat 1.0 where
+  inf = 1/0