Keean Schupke wrote:
Do you need a language extension at all? You can certainly
do it with the existing extensions!
data ShowDict a
instance Show (ShowDict a) where
showsPrec _ (ShowDict a) = ...
I don't understand. How does that help you to, for example, use a function
which
requires Show Int but (say) substitute the standard function for which which
shows
in hexadecimal?
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