Re: More on randoms

> So this is really an appeal for code contributions from people who know > the subject intimately. nhc98 has the same primitive FFI as Hugs/ghc, > so in theory, one good implementation in a mixture of C + Haskell > should work for all systems. If you have written one, please make it > available

Re: rounding in haskell

Lennart Augustsson <[EMAIL PROTECTED]> writes: > Haskell performs no worse or better than C. Your comment about how math > libraries round might be accurate for some languages, but for C it's pure nonsense. It seems that you are right in this instance. However I recall seeing comments about err

Re: overlapping instances

"Jeffrey R. Lewis" <[EMAIL PROTECTED]> writes: > Marcin 'Qrczak' Kowalczyk wrote: > > Parts of context reduction must be deferred, contexts must be left > > more complex, which as I understand leads to worse code - only to > > make overlapping instances behave consistently, even where they are >

rounding in haskell

The precission and or rounding used by hugs/ghc seems strange, to wit: Prelude> sin(pi) -8.74228e-08 Prelude> pi 3.14159 sin(3.14159265358979323846) -8.74228e-08 ghc: module Main where main = do print pi print (sin pi) ./a.out 3.141592653589793 1.2246467991473532e-16 While th

Re: random number seeds

I believe that there is a nanosecond value in one of the data types specified in the Time module. (One of the Haskell 98 libraries) I don't know if Hugs supports that module, though. I know GHC does. Nick Eby wrote: > > Is there a straightforward way to access the current system time in > haskel

random number seeds

Is there a straightforward way to access the current system time in haskell, in order to give a seed to a random number generator without explicitly asking the user for one? --- nick eby [EMAIL PROTECTED]

Re: rounding in haskell

Julian Assange wrote: > The precission and or rounding used by hugs/ghc seems strange, to wit: > > Prelude> sin(pi) > -8.74228e-08 > Prelude> pi > 3.14159 > sin(3.14159265358979323846) > -8.74228e-08 > > ghc: > > module Main where > main = do > print pi > print (sin pi) > > ./a.ou

Re: overlapping instances

Marcin 'Qrczak' Kowalczyk wrote: > Sun, 06 Feb 2000 23:21:38 -0800, Jeffrey R. Lewis <[EMAIL PROTECTED]> pisze: > > > If context reduction choses a more generic instance when a more > > specific one exists, then I consider that a bug. > >

Re: overlapping instances

Sun, 06 Feb 2000 23:21:38 -0800, Jeffrey R. Lewis <[EMAIL PROTECTED]> pisze: > If context reduction choses a more generic instance when a more > specific one exists, then I consider that a bug. Section 4.4 Parts of context reducti

New PhD positions at Chalmers

Please pass on to interested students. Apologies for multiple copies. New PhD Positions(DEADLINE 1 March 2000! See "How to apply" below.) Department of Computing Science, Chalmers University of Technology and Göteborgs Uni

Invitation to IFL2000

This is the first invitation and call for contributions to the 12th INTERNATIONAL WORKSHOP on the IMPLEMENTATION of FUNCTIONAL LANGUAGES (IFL2000) ==

Re: interfacing to .sgf files

> > i'm looking for Haskell code to read/handle/write .sgf files/game trees > (= smart game format, http://www.red-bean.com/sgf/user_guide/index.html) > -- > -- Johannes Waldmann http://www.informatik.uni-leipzig.de/~joe/ -- > -- [EMAIL PROTECTED] -- phone/fax (+49) 341 9732 204/209 -- >

interfacing to .sgf files

i'm looking for Haskell code to read/handle/write .sgf files/game trees (= smart game format, http://www.red-bean.com/sgf/user_guide/index.html) -- -- Johannes Waldmann http://www.informatik.uni-leipzig.de/~joe/ -- -- [EMAIL PROTECTED] -- phone/fax (+49) 341 9732 204/209 --

Re: More on randoms

> What about the other Haskell implementations? > Do any of them implement the Haskell 98 Random module yet? nhc98 does not yet implement Random, for the following reasons: * substantial changes were made to the specification at a very late stage; * from the discussions then (when H'98 w