Re: [Haskell-beginners] Using symbolic values in the case expression

11 Nov 2010

      On 11 November 2010 17:03, C K Kashyap  wrote:
...
v1 = 1
v2 = 2
f x = case x of
 v1 -> "One"
 v2 -> "Two"
The closest I can thin is the following:

f x | x == v1 = "One"
    | x == v2 = "Two"

But, keep in mind, this is *not* the same thing. It requires Eq on x, and
you lose all the exhaustiveness/overlapping checks pattern matching
provides.

HTH,

-- 
Ozgur Akgun