[Haskell-cafe] Haskell vs GC'd imperative languages, threading,
parallelizeability (is that a word? :-D )
Donald Bruce Stewart
dons at cse.unsw.edu.au
Fri Aug 10 04:03:56 EDT 2007
> On 8/10/07, Donald Bruce Stewart <dons at cse.unsw.edu.au>
> It's using bit arrays.
> Well I'm a total Haskell newbie, and you're using Haskell to
> write imperative code, so it's really hard for me to read,
> but looking at your code, you have:
> (IOUArray Int Bool) -- an array of Bool
> Bool is a 32-bit value in Haskell AFAIK? (or possibly a
> machine-dependent sized value, but certainly not a bit?)
No, STUArray s Int Bool is a bit array.
Look at the space use. Or try replacing Bool with Word32, and see what happens.
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