Re: [Haskell-cafe] Overloading

12 Mar 2013


      On Tue, Mar 12, 2013 at 3:21 PM, Brandon Allbery wrote:
...
On Tue, Mar 12, 2013 at 1:52 PM, Carlos Camarao wrote:
...
Sorry, I think my sentence:
    "To define (+) as an overloaded operator in Haskell,
      you have to define and use a type class."
is not quite correct.  I meant that to define any operator in Haskell you
have to
have a type class defined with that operator as member.
What? An operator is just an infix function, taken from the set of
symbols. Any function can be an operator (and is, via `func` syntax). No
typeclass is required to define a random operator.
What did you really mean to say there?
Sorry, I meant: "To define any _overloaded_ name or operator (i.e. any
name/operator that can be overloaded) in Haskell you have to have a type
class defined with that name/operator as member.

Cheers,

Carlos