1 files changed, 30 insertions, 0 deletions
diff --git a/testsuite/tests/typecheck/should_compile/tc051.hs b/testsuite/tests/typecheck/should_compile/tc051.hs
new file mode 100644
index 0000000000..7f14282fb8
--- /dev/null
+++ b/testsuite/tests/typecheck/should_compile/tc051.hs
@@ -0,0 +1,30 @@
+module ShouldSucceed where
+
+class Eq' a where
+ doubleeq :: a -> a -> Bool
+
+class (Eq' a) => Ord' a where
+ lt :: a -> a -> Bool
+
+instance Eq' Int where
+ doubleeq x y = True
+
+instance (Eq' a) => Eq' [a] where
+ doubleeq x y = True
+
+instance Ord' Int where
+ lt x y = True
+
+{-
+class (Ord a) => Ix a where
+ range :: (a,a) -> [a]
+
+instance Ix Int where
+ range (x,y) = [x,y]
+-}
+
+
+
+
+
+