swap :: Array (Int, Int) a -> [Int] -> Array (Int, Int) a
The lowercase "a" means that that type variable is polymorphic, i.e.
it can be any type.
Alex
On Thu, Jul 2, 2009 at 8:05 PM, Fernan Bolando
Hi
I have a function that swaps rows of an array of double
swap :: Array (Int,Int) Double -> [Int] -> Array (Int,Int) Double
I then create a function that swaps rows of arrays of Complex Double
swap :: Array (Int, Int) (Complex Double) -> [Int] -> Array (Int, Int) (Complex Double)
In reality the function swap does not care whether its working on a double or a complex number. how do I declare swap so that it will work whether it's a complex or a double array.
I tried googling but I wasn't sure what to google.
fernan -- http://www.fernski.com _______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe