[Haskell-cafe] Confused about type seen in the wild

Kim-Ee Yeoh ky3 at atamo.com
Thu Apr 10 17:21:36 UTC 2014


No problems here:

# ghci
GHCi, version 7.6.3: http://www.haskell.org/ghc/  :? for help
Loading package ghc-prim ... linking ... done.
Loading package integer-gmp ... linking ... done.
Loading package base ... linking ... done.
Prelude> let whee :: Show a => Eq a => a => Bool; whee x = x == x && null
(show x)
Prelude> :t whee
whee :: (Eq a, Show a) => a -> Bool

-- Kim-Ee
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