[project @ 1998-01-30 16:59:06 by sof]

- intToDigit: if we're going to crash and burn, we might
  as well report back the argument value that caused it.

ghc/lib/ghc/PrelBase.lhs

@@ -791,7 +791,7 @@ intToDigit :: Int -> Char
 intToDigit i
  | i >= 0  && i <=  9   =  toEnum (fromEnum '0' + i)
  | i >= 10 && i <= 15   =  toEnum (fromEnum 'a' + i -10)
- | otherwise		=  error "Char.intToDigit: not a digit" -- ....
+ | otherwise		=  error ("Char.intToDigit: not a digit: " ++ show i) -- ....
 
 \end{code}