Re: [Haskell-cafe] Equations for `foo' have different numbers of arguments
Bulat Ziganshin ha scritto: Hello Manlio, Tuesday, March 24, 2009, 5:44:14 PM, you wrote: divide _ 0 = error "division by 0" divide = (/) Equations for `divide' have different numbers of arguments you should write divide a b = a/b Right. But my question was: why can't I write the function as I did? Why can't I write an equation in the curried form? Thanks (and thanks for the other responses, I will reply only here) Manlio ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
Re: [Haskell-cafe] Equations for `foo' have different numbers of arguments
Hello Manlio, Tuesday, March 24, 2009, 5:44:14 PM, you wrote: > divide _ 0 = error "division by 0" > divide = (/) > Equations for `divide' have different numbers of arguments you should write divide a b = a/b -- Best regards, Bulatmailto:bulat.zigans...@gmail.com ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
[Haskell-cafe] Equations for `foo' have different numbers of arguments
Hi. There is a limitation, in Haskell, that I'm not sure to understand. Here is an example: module Main where divide :: Float -> Float -> Float divide _ 0 = error "division by 0" divide = (/) main = do print $ divide 1.0 0.0 print $ divide 4.0 2.0 With GHC I get: Equations for `divide' have different numbers of arguments With HUGS: Equations give different arities for "divide" However the two equations really have the same number of arguments. What's the problem? Thanks Manlio Perillo ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe
