[Haskell-cafe] Wondering if this could be done.
magicloud.magiclouds at gmail.com
Mon Nov 22 01:48:53 EST 2010
For example, I have a data A defined. Then I want to add (+) and (-)
operators to it, as a sugar (compared to addA/minusA). But * or other
stuff defined in class Num is meanless to A. So I just do:
(+) :: A -> A -> A
(+) a b =
A (elem1 a + elem1 b) (elem2 a + elem2 b) -- I got errors here, for
the (+) is ambiguous.
So, just wondering, does this way work in Haskell?
More information about the Haskell-Cafe