brief example of ZipList?
Can someone give me a brief example using ZipList? I want to do something like z1 :: [Int -> Int] z1 = [succ,succ] z2 :: [Int] z2 = [1,2] z3 = z1 <*> z2 But don't know to get it to regard these as ZipLists and not regular lists. This is purely for learning purposes. No application in mind. -Mike
On Mon, Aug 10, 2009 at 7:08 PM, Michael P Mossey
Can someone give me a brief example using ZipList? I want to do something like
z1 :: [Int -> Int] z1 = [succ,succ]
z2 :: [Int] z2 = [1,2]
z3 = z1 <*> z2
But don't know to get it to regard these as ZipLists and not regular lists.
This is purely for learning purposes. No application in mind.
z3 = getZipList $ (ZipList z1) <*> (ZipList z2) Should do what you want. Does that make sense? Antoine
z1 :: ZipList (Int -> Int) z1 = ZipList [succ,succ] z2 :: ZipList Int z2 = ZipList [1,2] z3 :: ZipList Int z3 = z1 <*> z2 Bob On 11 Aug 2009, at 02:08, Michael P Mossey wrote:
Can someone give me a brief example using ZipList? I want to do something like
z1 :: [Int -> Int] z1 = [succ,succ]
z2 :: [Int] z2 = [1,2]
z3 = z1 <*> z2
But don't know to get it to regard these as ZipLists and not regular lists.
This is purely for learning purposes. No application in mind.
-Mike _______________________________________________ Beginners mailing list Beginners@haskell.org http://www.haskell.org/mailman/listinfo/beginners
participants (3)
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Antoine Latter -
Michael P Mossey -
Thomas Davie