1 files changed, 39 insertions, 0 deletions
diff --git a/testsuite/tests/lib/Numeric/num009.hs b/testsuite/tests/lib/Numeric/num009.hs
new file mode 100644
index 0000000000..6910f2f840
--- /dev/null
+++ b/testsuite/tests/lib/Numeric/num009.hs
@@ -0,0 +1,39 @@
+-- trac #2059
+
+{-# LANGUAGE ForeignFunctionInterface #-}
+
+module Main(main) where
+
+import Control.Monad
+import Foreign.C
+
+main = do let d = 1e20 :: Double
+              f = 1e20 :: Float
+          test "sind" sind sin d
+          test "sinf" sinf sin f
+          test "cosd" cosd cos d
+          test "cosf" cosf cos f
+          test "tand" tand tan d
+          test "tanf" tanf tan f
+          putStrLn "Done"
+
+test :: (RealFloat a, Floating a, RealFloat b, Floating b)
+     => String -> (a -> a) -> (b -> b) -> b -> IO ()
+test s f g x = do let y = realToFrac (f (realToFrac x))
+                      z = g x
+                  unless (y == z) $ do
+                      putStrLn s
+                      print y
+                      print z
+                      print $ decodeFloat y
+                      print $ decodeFloat z
+
+foreign import ccall "math.h sin"  sind :: CDouble -> CDouble
+foreign import ccall "math.h sinf" sinf :: CFloat  -> CFloat
+
+foreign import ccall "math.h cos"  cosd :: CDouble -> CDouble
+foreign import ccall "math.h cosf" cosf :: CFloat  -> CFloat
+
+foreign import ccall "math.h tan"  tand :: CDouble -> CDouble
+foreign import ccall "math.h tanf" tanf :: CFloat  -> CFloat
+