Re: [Haskell-cafe] instance for (Show ([(String, Int)] -> Int))

On Fri, 24 Dec 2010, Aaron Gray wrote:

The compiler is requesting an instance declaration for Show :-

  expr-eval.hs:334:23:       No instance for (Show ([(String, Int)] -> Int))         arising from a use of `print' at expr-eval.hs:334:23-27       Possible fix:         add an instance declaration for (Show ([(String, Int)] -> Int))       In the first argument of `(.)', namely `print'       In the second argument of `(>>=)', namely `print . calc . lexer'       In the expression: getContents >>= print . calc . lexer

... maybe 'calc' needs a further argument?