Re: [Haskell-cafe] function result caching

it does, thank you very much for the quick answer, unfortunately as I understand it, it doesn't work well on ints :( for just now i created a list slowFunctionCacheList= [slowFunction (i) | i <-[0..5000000]] and use "slowFunctionCacheList !! i" instead of "slowFunction (i)" it helped alot (i mean i stoped the program after "3 hours still working" and got the result in 2 minutes :)) i am still curious about a better method (and a general one), because this is ugly, and it only works on ints as i see it. but then again thank you for telling me it doesn't do it, because i had the false impresion it does and i wouldn't stop it otherwise On 10/13/06, Tom Phoenix wrote:

On 10/12/06, Silviu Gheorghe wrote:

...

I'd like to know if the results are "cached" by the compiler

Hardly ever, as I understand things.

...

if they are not I'd like to know what is the best way to cache them manually, and where can I read more about this, and the optimizations the compiler does, because I've searched the web before and i found very little on this topic.

You need to search for the word "memoize" (or "memoise"). Here's a page about a memo function for GHC.

http://www.haskell.org/ghc/docs/6.4.2/html/hslibs/memo-library.html

Hope this helps!

--Tom Phoenix