diff options
Diffstat (limited to 'testsuite/tests/indexed-types/should_compile/T4497.hs')
| -rw-r--r-- | testsuite/tests/indexed-types/should_compile/T4497.hs | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/testsuite/tests/indexed-types/should_compile/T4497.hs b/testsuite/tests/indexed-types/should_compile/T4497.hs new file mode 100644 index 0000000000..57d3d48ca4 --- /dev/null +++ b/testsuite/tests/indexed-types/should_compile/T4497.hs @@ -0,0 +1,15 @@ +{-# LANGUAGE FlexibleContexts, MultiParamTypeClasses, TypeFamilies #-}
+
+module T4497 where
+
+norm2PropR a = twiddle (norm2 a) a
+
+twiddle :: Normed a => a -> a -> Double
+twiddle a b = undefined
+
+norm2 :: e -> RealOf e
+norm2 = undefined
+
+class (Num (RealOf t)) => Normed t
+
+type family RealOf x
|