85 results found for haskell &&&
Why can't I define a Haskell Arrow instance in terms of arr and *** / &&& Why can't I define a Haskell Arrow instance in terms of arr and *** / &&&
http://stackoverflow.com/question...arrow-instance-in-terms-of-arr-and
Parse error in pattern: True &&& Tags: haskell operators pattern-matching boolean section Yes, the way you define it is better. From the Prelude: True &&
http://stackoverflow.com/question...ually-defining-boolean-conjunction
How do reimplement this Python XML-parsing function in Haskell? How do reimplement this Python XML-parsing function in Haskell? I recently wrote the
http://stackoverflow.com/question...on-xml-parsing-function-in-haskell
code? Thanks Tags: haskell functional-programming You can use arrows, too: import Control.Arrow ins x = inits &&& tails >>> second (map (x:)) >>> uncurry
http://stackoverflow.com/question...code-in-haskell-dealing-with-lists
once? Tags: haskell performance evaluation in Control.Arrow there is (&&&) which can be used in something like this: unfoldr (\(p1,p2) -> (Just . (id &&&
http://stackoverflow.com/question...sion-to-avoid-repeated-computation
Haskell uniq -c emulator code explanation Haskell uniq -c emulator code explanation This code seems a bit obtuse to me... Anyone care to help me out
http://stackoverflow.com/question...l-uniq-c-emulator-code-explanation
Trick for "reusing" arguments in Haskell? Trick for "reusing" arguments in Haskell? From time to time I stumble over the problem that I want to
http://stackoverflow.com/question...k-for-reusing-arguments-in-haskell
a=head.Data.List.sortBy(compare`Data.Function.on`abs.(a-)) Here's another Haskell answer: import Control.Arrow near4 = snd . minimum . map (abs . subtract 4 &&& id) Why waste characters with "import
http://stackoverflow.com/question...est-match-in-collection-of-numbers
(interactive) is assigning a too-restrictive type in a let statement. Namely, given the code, import Control.Arrow f = maximum &&& id >>> fst &&& (\(m,l) ->
http://stackoverflow.com/question...s-ghci-typing-this-statement-oddly
Control.Arrow> :t (&&&) (&&&) :: (Arrow a) => a b c -> a b c' -> a b (c, c') Prelude Control.Arrow> :t (pred &&& succ) (pred &&& succ) :: (Enum b) => b -> (b, b)
http://stackoverflow.com/question...h-the-types-of-the-arrow-functions