RE: List comprehensions

Hello, Recently, I came accross this expression: [ x + y | x - xs | y - ys ] As far as I can see (Haskell Report), this is not allowed by the haskell 98 standard. So I assume it to be an ex- tension. Where can I find information about this? This is a parallel list comprehension, a

Re: ANNOUNCE: Haddock version 0.3

Will Haddock understand implicit parameters soon? As of now I'm not using them because I think documentation is more important... Cheers, Jan de Wit ___ Haskell mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell

Re: Passing values taking implicit parameters

= Foo { host :: String, port :: Int } defaultFoo = Foo { port = } myFoo = defaultFoo { host = haskell.org } yourFoo = defaultFoo { host = haskell.org, port = 80 } HTH, Jan de Wit ___ Glasgow-haskell-users mailing list [EMAIL PROTECTED] http

Re: newtype/datatype (was efficiency)

Hi, data T -- has 1 value: _|_ Minor nitpick: that Hugs and GHCi accept it, doesn't mean it's legal Haskell'98. Otherwise we would have existential and universal quantified types as well :-) Cheers, Jan ___ Haskell-Cafe mailing list

Re: State Transformer

Hi, testfunc = do r - newSTRef ('x',0) foo r bar r (c,n) - readSTRef r return n Yeap, I could do it like this myself :) The whole problem is with passing the 'r' as a parameter, which is precisly what I'm trying to avoid. I

Re: global counters

version, curVarId allocates a new reference to 0 every time newVar is called. Hope this works, Jan de Wit ___ Haskell mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell

Re: gcd 0 0 = 0

with 0. Cheers, Jan de Wit ___ Haskell mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell

Re: ghc image size

, I run 'strip' on them and, if I'm on Linux or Win32, I run UPX on it as well. UPX is an executable packer, see http://upx.sourceforge.net/ for details. This routinely brings programs down from over 2 MB to around 250Kb which is small enough for me. Hope this helps, Jan de Wit

Communicating with other programs (Win32)

not using Cygwin) Any help would be appreciated! Cheers, Jan de Wit ___ Glasgow-haskell-users mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/glasgow-haskell-users

RE: Binary library

see: | Cons{hd='a',tl=(Cons{hd='b',tl=Nil})} | *** Exception: Prelude.read: no parse So, at least ghc and hugs disagree... My ghc version is 5.02 and my hugs is February 2000/2001 (both give the same output). Cheers, Jan de Wit 8 module Test where data List a = Nil | Cons { hd :: a, tl

Parser panic: Non-exhaustive patterns in case

the universally quantified types... The problem also occurs in 5.00.1 and 4.08.1, with line numbers 5292 and 10787 respectively. I've tried to submit to the SourceForge bug list as well, but that doesn't seem to be working for me... All the best, Jan de Wit

Re: Monomorphize, was: Re: Proposal for generalized function partition in List-library

- a - Perfect a | mkPerfect 1 x = One x | mkPerfect (n+1) x = Two (mkPerfect n (x,x)) mkPerfect will be called with a number of different types for its second argument, depending on the first argument. HTH, Jan de Wit ___ Haskell mailing list [EMAIL PROTECTED

Re: How do I force evaluation?

"failure?" The idea is that comparing for equality walks over the entire data structure, forcing evaluation because every location has to be inspected. Hope this helps, Jan de Wit ___ Glasgow-haskell-users mailing list [EMAIL PROTECTED] http://www.haskel

Re: Translations

- but maybe somebody could mail his supervisor, prof. Krzysztof Apt at cwi.nl (his login name is apt) Hope this helps, Jan de Wit ___ Haskell mailing list [EMAIL PROTECTED] http://www.haskell.org/mailman/listinfo/haskell

Re: help, classes!

u.nl/~erik/Publications/1999-28.pdf (the paper itself might be at Chalmers, but the site seems to be down...) Hope this helps, Jan de Wit

ANNOUNCE: HaSpell release 0.1

will enjoy this program, Jan de Wit

Re: Fw: speed of compiled Haskell code.

er. Hope this helps (or leads to someone else giving a better definition :-) Jan de Wit

RE: User-defined functionality in Hugs

changed source files somewhere. Drop me a line (and you'll get the ':kompile' command thrown in for free!) Bye, Jan de Wit

De facto Haskell 2000?

and weaknesses and its niche). So will the features of Hugs eventually be supported by all platforms and integrated into a future version of Haskell or will I have to keep seperate versions of my code? All the best, Jan de Wit

Re: Clean and Haskell

(and also stand a good chance of remedying them :-) This is not a rant against the people at Hilt, it's just that I'm *interested* at how Clean works... All the best, Jan de Wit

Re: Clean and Haskell

for this?), but I think the main problem is in implementing the IO library... Also writing a code generator would be a very large task. What would be the best approach to tackle this problem? All the best, Jan de Wit

Re: To all those who don't like ad-hoc overloading

which would resolve this issue. See http://www.cse.ogi.edu/~mpj/fds.html for details - I really hope the September release comes quickly !!! Bye, Jan de Wit

Re: Haskell conventions (was: RE: how to write a simple cat)

are in some sense isomorphic to the arguments, ie newtype Compose ff gg a = Compose { unCompose :: ff (gg a) } and suchlike. Jan de Wit