tcfail067.hs:1:14:
    Warning: -XDatatypeContexts is deprecated: It was widely considered a misfeature, and has been removed from the Haskell language.

tcfail067.hs:12:16:
    No instance for (Ord a)
      arising from a use of `SubRange'
    In the pattern: SubRange (lower, upper) value
    In an equation for `subRangeValue':
        subRangeValue (SubRange (lower, upper) value) = value

tcfail067.hs:15:11:
    No instance for (Ord a)
      arising from a use of `SubRange'
    In the pattern: SubRange r value
    In an equation for `subRange': subRange (SubRange r value) = r

tcfail067.hs:46:12:
    Could not deduce (Ord a) arising from a use of `SubRange'
    from the context (Show a)
      bound by the type signature for
                 showRange :: Show a => SubRange a -> String
      at tcfail067.hs:(46,1)-(47,58)
    Possible fix:
      add (Ord a) to the context of
        the type signature for showRange :: Show a => SubRange a -> String
    In the pattern: SubRange (lower, upper) value
    In an equation for `showRange':
        showRange (SubRange (lower, upper) value)
          = show value ++ " :" ++ show lower ++ ".." ++ show upper

tcfail067.hs:61:12:
    Could not deduce (Show a, Ord a)
      arising from a use of `numSubRangeNegate'
    from the context (Num a)
      bound by the instance declaration at tcfail067.hs:60:10-34
    Possible fix:
      add (Show a, Ord a) to the context of the instance declaration
    In the expression: numSubRangeNegate
    In an equation for `negate': negate = numSubRangeNegate
    In the instance declaration for `Num (SubRange a)'

tcfail067.hs:65:19:
    Could not deduce (Ord a) arising from a use of `SubRange'
    from the context (Num a)
      bound by the instance declaration at tcfail067.hs:60:10-34
    Possible fix:
      add (Ord a) to the context of the instance declaration
    In the expression:
      SubRange (fromInteger a, fromInteger a) (fromInteger a)
    In an equation for `fromInteger':
        fromInteger a
          = SubRange (fromInteger a, fromInteger a) (fromInteger a)
    In the instance declaration for `Num (SubRange a)'

tcfail067.hs:74:5:
    Could not deduce (Ord a) arising from a use of `SubRange'
    from the context (Num a)
      bound by the type signature for
                 numSubRangeBinOp :: Num a =>
                                     (a -> a -> a) -> SubRange a -> SubRange a -> SubRange a
      at tcfail067.hs:(73,1)-(76,53)
    Possible fix:
      add (Ord a) to the context of
        the type signature for
          numSubRangeBinOp :: Num a =>
                              (a -> a -> a) -> SubRange a -> SubRange a -> SubRange a
    In the expression: SubRange (result, result) result
    In an equation for `numSubRangeBinOp':
        numSubRangeBinOp op a b
          = SubRange (result, result) result
          where
              result = (subRangeValue a) `op` (subRangeValue b)