On Thu, Aug 31, 2006 at 11:09:07AM +0400, Bulat Ziganshin wrote:
Hello Benjamin,
Wednesday, August 30, 2006, 11:40:09 PM, you wrote:
Matthias Fischmann wrote:
The trick is that Int is not the only index data type, but tuples of index data types are, too. Do this:
| type Point = (State, State, Int) | type TypeV = Array State Double | | matrix :: TypeV | matrix = array bounds values | where | ...
Surely you meant to say
| type TypeV = Array Point Double
which will require 128 gigs of memory for 32-bit cpus and even slightly more for 64-bit ones :)
Bulat, Can you please explain this? The following code works fine for me, and I don't have that much RAM ;-) It seems I am not getting something. import Data.Array data State = Low | High deriving (Eq,Ord,Ix,Show) other :: State -> State other High = Low other Low = High type Point = (State,State,Int) type TypeV = Array Point Double f (Low,Low,a) = a matrix = array ((Low,Low,0),(Low,Low,4)) [(i,f(i)) | i <- range ((Low,Low,0),(Low,Low,4))] Thank you, Tamas