[Haskell-cafe] ANNOUNCE: fgl-5.4.2.3

2010-07-12 Thread Ivan Lazar Miljenovic
I'm pleased to present the first new release of fgl [1] since Thomas Bereknyei took over maintaining it from Martin Erwig. [1] http://hackage.haskell.org/package/fgl Before people start panicking, rioting, etc., please check the version number: this is just a bug-fix release, and not the

[Haskell-cafe] ANNOUCE: graphviz-2999.10.0.0

2010-07-12 Thread Ivan Lazar Miljenovic
I'm pleased to announce a new version of my graphviz [1] library that provides bindings to the Graphviz [2] suite of tools for visualising graphs. [1]: http://hackage.haskell.org/package/graphviz [2]: http://graphviz.org/ Changes in this release: * I followed my own advice and put in bounds on

Re: [Haskell-cafe] The site has been exploited (again)

2010-07-12 Thread Christopher Done
On 11 July 2010 20:53, Don Stewart d...@galois.com wrote: It looks like after the Yale machine was repaved, and the mediawiki instance restored, some plugins (and templates) went missing, including those that previously prevented such spam accounts. A new machine has been purchased this week

[Haskell-cafe] ANNOUNCE: SourceGraph-0.6.1.1 and Graphalyze-0.10.0.0

2010-07-12 Thread Ivan Lazar Miljenovic
I'm pleased to announce updated versions of SourceGraph [1] (my graph-theoretic static analysis tool for Haskell) and Graphalyze [2] (a library for graph-theoretic analysis of relationships in discrete data). [1]: http://hackage.haskell.org/package/SourceGraph [2]:

[Haskell-cafe] Re: ANNOUCE: graphviz-2999.10.0.0

2010-07-12 Thread Ivan Lazar Miljenovic
Something I forgot to mention (yes, I forgot to mention something here as well as for the fgl announcement): I sent out an email during the week asking people what they'd prefer in terms of semantics as a pure Haskell implementation for dot -Tcanon. I didn't end up getting around to implementing

[Haskell-cafe] Re: ANNOUNCE: fgl-5.4.2.3

2010-07-12 Thread Ivan Lazar Miljenovic
A couple of points I meant to make here but forgot (I was busy hacking on this and my other three graph-related packages for over a week now, and especially this past weekend it cut into my sleeping...): * Apart from bug-fixes, I don't intend on touching the 5.4 series any more. That said, I

Re: [Haskell-cafe] haskell on suse?

2010-07-12 Thread Iliya Kuznetsov
Hello, cafeers! Are there OpenSuse repositories with ghc-6.12 maintained? Some months ago I installed 6.12.1 from someone's repository but now it's unavailable. My system is 11.2 (x86_64). Only ghc*6.10.4-7.1 packages are present. -- Iliya Kuznetsov

Re: [Haskell-cafe] Actually loading a Cabal package in GHCi

2010-07-12 Thread Ketil Malde
d...@patriot.net writes: d...@hypno:~/haschorus-1.2.1$ ghci GHCi, version 6.10.4: http://www.haskell.org/ghc/ :? for help Loading package ghc-prim ... linking ... done. Loading package integer ... linking ... done. Loading package base ... linking ... done. Prelude :m Haskore No error

[Haskell-cafe] Re: Equivalence of two expressions

2010-07-12 Thread Heinrich Apfelmus
Grigory Sarnitskiy wrote: I'm not very familiar with algebra and I have a question. Imagine we have ring K. We also have two expressions formed by elements from K and binary operations (+) (*) from K. Can we decide weather these two expressions are equivalent? If there is such an algorithm,

[Haskell-cafe] Re: [Haskell] ANNOUNCE: Haskell 2010 Report (final)

2010-07-12 Thread Simon Marlow
On 08/07/2010 21:34, John Meacham wrote: On Tue, Jul 06, 2010 at 09:48:20PM +0300, Roman Cheplyaka wrote: Greetings! Now, can different compiler/interpreter authors make statements about support of this standard in their compilers please? Jhc supports all the language features of haskell 2010

Re: [Haskell-cafe] Actually loading a Cabal package in GHCi

2010-07-12 Thread Stephen Tetley
Hi Ketil Particularly to Haskore rather than package importing or Cabal in general, AbsPitch is not defined in Haskore i.e. Henning Thielemann's extended Haskore. AbsPitch in Paul Hudak's Haskore (i.e. haskore-vintage), it is a synonym for Int, I believe the replacement is Henning's Haskore is

Re: [Haskell-cafe] Re: [Haskell] ANNOUNCE: Haskell 2010 Report (final)

2010-07-12 Thread John Meacham
On Mon, Jul 12, 2010 at 10:07:28AM +0100, Simon Marlow wrote: The story we tentatively plan to provide in GHC 6.14.1 is a haskell2010 package that provides exactly the API specified by the report (by definition, since the source was used to generate the report :-). The modules of

Re: [Haskell-cafe] Re: ANNOUNCE: fgl-5.4.2.3

2010-07-12 Thread Martin Hilbig
On 12.07.2010 09:25, Ivan Lazar Miljenovic wrote: A couple of points I meant to make here but forgot (I was busy hacking on this and my other three graph-related packages for over a week now, and especially this past weekend it cut into my sleeping...): * Apart from bug-fixes, I don't intend on

Re: [Haskell-cafe] Re: [Haskell] ANNOUNCE: Haskell 2010 Report (final)

2010-07-12 Thread Simon Marlow
On 12/07/2010 12:43, John Meacham wrote: On Mon, Jul 12, 2010 at 10:07:28AM +0100, Simon Marlow wrote: The story we tentatively plan to provide in GHC 6.14.1 is a haskell2010 package that provides exactly the API specified by the report (by definition, since the source was used to generate the

Re: [Haskell-cafe] Re: Float instance of Data.Bits

2010-07-12 Thread Nick Bowler
On 22:02 Sat 10 Jul , Sam Martin wrote: Note that the Haskell report does not require IEEE 754 binary encodings. In fact, it permits 'Float' to be a decimal floating point type. True. Although I don't really understand why? Or rather, I don't understand why it can't be at least

[Haskell-cafe] PNG sample on haskellwiki

2010-07-12 Thread C K Kashyap
Hi, I tried out the code on this page http://haskell.org/haskellwiki/Library/PNGbut the png file that'e emitted does not seem to open properly with image viewing tools. Has anyone tried it out? I added this bit for supplying the data for image creation - count=100 row = take count (cycle

Re: [Haskell-cafe] PNG sample on haskellwiki

2010-07-12 Thread Thomas DuBuisson
I don't know about that code, but have had good experiences on two projects using the DevIL binding library found on hackage [1]. I tried pngload [2] originally, but that isn't full featured enough for real use. iirc, stb-image [3] had a similar issue of being too bare-bones; the haddock

Re: [Haskell-cafe] Re: [Haskell] ANNOUNCE: Haskell 2010 Report (final)

2010-07-12 Thread Felipe Lessa
On Mon, Jul 12, 2010 at 9:50 AM, Simon Marlow marlo...@gmail.com wrote: And hopefully things will improve over time, as fewer packages will need to depend on base.  We could also start pulling out APIs that are currently in base into separate packages, without actually pulling out the code -

Re: [Haskell-cafe] darcs 2.5 beta 1 release

2010-07-12 Thread Reinier Lamers
Hi, Op zondag 11 juli 2010 18:02 schreef Jason Dagit: On Sun, Jul 11, 2010 at 5:51 AM, Reinier Lamers tux_roc...@reinier.dewrote: If you have installed the Haskell Platform or cabal-install, you can install this beta release by doing: $ cabal update $ cabal install darcs-beta

Re: [Haskell-cafe] haskell platform questions

2010-07-12 Thread Gaius Hammond
Hi, This is still happening with the current DMG on the website, my solution has been to install GHC from the DMG, then get the source for Haskell Platform (haskell-platform-2010.1.0.0.tar.gz) and build it myself. Cheers, G On 22 Mar 2010, at 04:02, Warren Harris wrote: I

Re: [Haskell-cafe] Re: [Haskell] ANNOUNCE: Haskell 2010 Report (final)

2010-07-12 Thread John Meacham
On Mon, Jul 12, 2010 at 01:50:01PM +0100, Simon Marlow wrote: Right. I like the idea of packages being able to declare re-exported modules, indeed I considered doing this in GHC (when we needed base3) but decided not to mainly because we would still need PackageImports, and once you

[Haskell-cafe] cryptohash and an incremental API

2010-07-12 Thread Thomas M. DuBuisson
Vincent, Due to spam-like comments on -cafe I hadn't been subscribed for a while and missed your cryptohash discussion! Particularly: The main reason for this library is the lack of incremental api exposed by current digest libraries, and filling the void about some missing digest

[Haskell-cafe] DpH/repa cache locality

2010-07-12 Thread Gregory Crosswhite
Hey everyone, Just out of curiosity, what work is being done in the data parallel haskell / repa projects regarding cache locality? The reason I am asking is because, as I understand it, the biggest bottleneck on today's processors are cache misses, and the reason why optimized platform-specific

Re: [Haskell-cafe] Comments on Haskell 2010 Report

2010-07-12 Thread Richard O'Keefe
On Jul 11, 2010, at 9:20 PM, Daniel Fischer wrote: * Prove the binomial theorem *without* the convention 0**0 := 1 Except that in the binomial theorem, one uses (^) and not (**). For (^), setting x ^ 0 = 1 is, as far as I'm aware, uncontested. This is not so: the exponent in the binomial

Re: [Haskell-cafe] Comments on Haskell 2010 Report

2010-07-12 Thread C. McCann
On Sat, Jul 10, 2010 at 6:40 PM, Julian Fleischer julian.fleisc...@fu-berlin.de wrote: I guess I'm actually messing things up using the word natural - how can expand the multiplication of zero with itself zero times be natural? How could it not be? That is to say, what initial value would

Re: [Haskell-cafe] Re: [Haskell] ANNOUNCE: jhc 0.7.4

2010-07-12 Thread Richard O'Keefe
On Jul 11, 2010, at 9:38 AM, wren ng thornton wrote: Generally OSX takes UTF16 to be the standard encoding (I don't recall if it's LE or BE), though UTF8 is supported almost everywhere. I haven't checked to see whether that would affect this particular task though. Mac OS X 10.5 came

[Haskell-cafe] ghc-6.12 can't works with Cabal-1.8.0.4?

2010-07-12 Thread Andy Stewart
Hi all, I upload package http://hackage.haskell.org/package/poppler-0.11.1 I can compile it on my box, but it build failure at hackage with below error: -- error start -- *** setup configure Reading installed packages...

Re: [Haskell-cafe] PNG sample on haskellwiki

2010-07-12 Thread C K Kashyap
Thanks Thomas for the resources ... particularly [3] ... it seems to have a link to a standalone 'C' code that does jpeg and png decoding! I'd actually like to see the example on Haskell wiki work - my agenda is two fold, familiarity with dealing with binary data in Haskell and also understanding

[Haskell-cafe] 64-bit #const with hsc2hs?

2010-07-12 Thread Dean Herington
Does anyone know if I can bring a 64-bit (long long or unsigned long long) value from C-land into Haskell via hsc2hs? #const on such a value seems to provide only the low 32 bits, at least in my environment (Haskell Platform 2009.2.0.2 on Windows). I've tried to create a 64-bit variant of

Re: [Haskell-cafe] Re: The site has been exploited (again)

2010-07-12 Thread Gwern Branwen
On Sun, Jul 11, 2010 at 2:28 PM, Mike Dillon m...@embody.org wrote: begin Mike Dillon quotation: Being that there is only one active admin on the Haskell.org wiki (User:Ashley Y), I believe the fact that this page is editable by any user is a policy decision to allow the community to