jwlato:
> > Great points: I've added them to this wiki page of for and against
> > points:
> >
> > http://haskell.org/haskellwiki/Libraries/WhenToRewriteOrRename
> >
> > Please add points as you see fit, and maybe we can come up with a
> > mitigation/change plan.
> >
>
> Thanks very much; that'
There have been a few cases of major API / rewrites to famous old
packages causing problems, including:
* QuickCheck 1 vs 2
* parsec 2 vs 3
* OpenGL
a similar opportunity is present with 'fgl', where the new maintainers
are seeking to improve the code.
Below I try to summarise the
jwlato:
> > From: Don Stewart
> >
> > ivan.miljenovic:
> >> Thomas Bereknyei are currently re-writing fgl (just about completely
> >> from scratch) and we plan to make an initial release to get feedback
> >> on the API in the next few weeks.
> &g
igouy2:
> As Louis has already mentioned this to me, I'll take the opportunity
> to sketch out a simple approach -
>
>
> 1) GHC programs compiled without -threaded and run without +RTS -N are
> already shown for x86 and x64
>
> http://shootout.alioth.debian.org/u32/compare.php?lang=ghc
>
> ht
Amanda Laucher
Romain Lenglet, Google Japan
Yaron Misky, Jane Street (Co-Chair)
Mary Sheeran, Chalmers
Don Stewart, Galois
Dean Wampler, DRW Trading
More information
For more information on CUFP, including videos of presentations from previous
years, take a look at the CUFP w
ivan.miljenovic:
> Oh, great, the email _did_ go out on the mailing lists (what with
> haskell.org being down I wasn't sure it would).
>
> Don Stewart writes:
>
> > ivan.miljenovic:
> >> Thomas Bereknyei are currently re-writing fgl (just about completely
>
wasserman.louis:
> While working on the Shootout, I noticed the following benchmarks:
>
> http://shootout.alioth.debian.org/u64/program.php?test=chameneosredux&lang=ghc&;
> id=3
> http://shootout.alioth.debian.org/u64q/program.php?test=chameneosredux&lang=
> ghc&id=3
>
> The same program becomes
ivan.miljenovic:
> Thomas Bereknyei are currently re-writing fgl (just about completely
> from scratch) and we plan to make an initial release to get feedback
> on the API in the next few weeks.
>
> However, I'm sending this email out now to warn people that I highly
> doubt any code that was writ
ivan.miljenovic:
> Don Stewart writes:
>
> > allbery:
> >> Supposedly a future Cabal extension will be to, instead of installing,
> >> write out a package for a vendor packaging system (yum, apt, yast, what
> >> have you). Consider contributing to tha
allbery:
> On Jun 4, 2010, at 06:54 , Ivan Lazar Miljenovic wrote:
>> Don Stewart writes:
>>> However, we have tools for some distros that do this, and some distro
>>> tools support it directly (e.g. "bauerbill --hackage" on Arch Linux
>>> knows how
allbery:
> On Jun 4, 2010, at 23:04 , Don Stewart wrote:
>> Build/does not build? That can be automated.
>
>
> Automated converters have a certain tendency to become confused and put
> files in unexpected places, etc. Usually this has less to do with the
> source
allbery:
> On Jun 3, 2010, at 20:27 , Jens Petersen wrote:
>> I often find myself hitting Ctrl-C at "cabal install HACKAGE" to run
>> "yum install ghc-DEPENDENCY-devel"
>> and before returning to run "cabal install" again.
>>
>> It would be nice to automate this in some way - cabal-install plugins,
chrisdone:
> On 4 June 2010 00:05, Don Stewart wrote:
> > wasserman.louis:
> >> What, if anything, stands in the way of parallelizing Cabal installs, make
> >> -j
> >> style?
> >
> > Parallelizing ghc --make
> >
> > http://vim
wasserman.louis:
> What, if anything, stands in the way of parallelizing Cabal installs, make -j
> style?
Parallelizing ghc --make
http://vimeo.com/6572966
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si:
> On Thursday 03 June 2010 06:27:43 am Don Stewart wrote:
>
> > I've been posting CSV files of the download statistics here:
> >
> >http://www.galois.com/~dons/hackage/hackage-downloads.csv
> >
> > The next quarter's aggregated downloads are
si:
> Don wrote
>
> > I see fairly regular complaints about too many Haskell libraries,
> > bewildering choice of difficult-to-determine quality.
> >
> > I've tried to summarize the state of Hackage, and what projects are
> > active to make it easier to find high quality libraries:
> >
> > htt
I see fairly regular complaints about too many Haskell libraries,
bewildering choice of difficult-to-determine quality.
I've tried to summarize the state of Hackage, and what projects are
active to make it easier to find high quality libraries:
http://tinyurl.com/2cqw9sb
Thoughts?
-- Don
__
Hey all,
I thought I might just draw attention to a relatively new forum for
Haskell information on the interwebs, that hasn't been mentioned here
before.
The Stack Overflow Haskell questions forum:
http://stackoverflow.com/questions/tagged/haskell
We've had more than 1000 questions asked a
dvde:
> Dear Haskellers,
>
> I just want to share an observation. I had to convert a Double to a
> Float value in an inner loop of an application, and I used somethin like
> this:
>
> xf = (fromRational $ toRational xd) :: Float
>
> The program works on windows but it did not on OSX - it was to
schlepptop:
> Don Stewart schrieb:
> > Or use things from the download-curl package, which provides a nice
> > openURL function.
>
> The openURL function from TagSoup is lazy, which the proposed
> replacement 'getResponseBody =<< simpleHTTP (getRequest x)'
Or use things from the download-curl package, which provides a nice
openURL function.
daniel.is.fischer:
> On Wednesday 19 May 2010 19:46:57, Ralph Hodgson wrote:
> > Forgot to add: I now need to understand the following warnings on this
> > line "> import Text.HTML.Download":
> >
> >
>
> In Text
dpx.infinity:
> Hi,
> I'm writing a program which listens to some D-Bus signals using
> DBus.Client.onSignal function from dbus-client package. This function
> runs IO action in separate haskell thread when signal is received. My
> program does nothing except signal handling, so after setting up
>
pierreetienne.meunier:
> > Perhaps you can look at the new array packages of the last few years:
> >
> >* vector
> >
> >An efficient implementation of Int-indexed arrays (both mutable and
> >immutable), with a powerful loop fusion optimization framework .
> >
> >http:
pierreetienne.meunier:
> Hello Cafe,
>
> Being a complete beginner in the field of numerical analysis, but
> anyway needing it to solve "real problems", I wrote a few functions
> recently to solve systems of polynomial equations using the "projected
> polyhedron" method by Maekawa and Patrikakalis
Make sure you're profiling with -prof -auto-all
And any packages you're using may need -auto-all as well.
limestrael:
> I'm definitely not good at profiling...
> But I have something:
>
> 4,971,190,736 bytes allocated in the heap
> 4,392,735,248 bytes copied during GC
> 13,998,328 by
dmehrtash:
> Would there be issues (lazy evaluation, type system...) with other languages
> calling a Haskell code in a hypothetical Haskell in .NET?
There are always issues, but conceptually it is no harder than calling
Haskell from C, which is relatively straight forward.
__
dmehrtash:
> In this presentation
>
> http://norfolk.cs.washington.edu/htbin-post/unrestricted/colloq/details.cgi?id=
> 907
>
> the speaker talks about F# on .Net platform. Early on in the talk he says
> that they did F# because haskell would be "hard to make as a .Net language".
>
> Does a
aran.donohue:
> I wrote this a couple of weeks ago and forgot about it. I thought it might be
> of interest to some on this list:
>
> http://workshop.arandonohue.com/ring/
> ___
Looks a lot like the shootout ThreadRing benchmark,
http://shootout.
martin:
> hi,
>
> since i got no answer from the maintainer, maybe someone else can take
> care of it, or at least point out, what i did wrong.
>
> so, i recently stumbled upon some error while using Text.JSON 0.4.3 [1]:
>
> Text/JSON/String.hs:(127,4)-(137,49): Non-exhaustive patterns in case
tomahawkins:
> I have a lot of structured data in a program written in a different
> language, which I would like to read in and analyze with Haskell. And
> I'm free to format this data in any shape or form from the other
> language.
>
> Could I define a Haskell type for this data that derives th
igouy2:
> Ketil Malde writes:
>
> > As for code size, the programs are heavily tuned for speed.
>
> iirc there was a community effort 2 or 3 years ago, but now ghc has
> changed enough that the compiler and runtime parameters seem to need
> re-tuning.
Even longer ago -- some of those 'optimize
lrpalmer:
> What I seem to be getting at is this plane of type systems:
>
> Constrained - Expressive
> Unreliable
> | (C)
> |(test suites)
> | (C++).
> |
The event library has a pluggable interface, with multiple backends, and
is entirely portable as a result. You just swap in your 'select'
mechanism:
http://github.com/tibbe/event/blob/master/src/System/Event/EPoll.hsc
http://github.com/tibbe/event/blob/master/src/System/Event/Poll.hsc
brad.larsen:
> On Sun, May 2, 2010 at 4:10 PM, Don Stewart wrote:
> > I don't believe anyone has written a "Programming Haskell in the Large"
> > book (or any other similar functional language??), but there is lots of
> > experience in this community w
jaco.van.iterson:
> Hi
>
> I was just wondering what methods are best to design/model the software in
> bigger projects when you are planning to use Haskell.
> Is there no difference compared to other languages? Are there any Haskell
> tools?
>
I don't believe anyone has written a "Programming H
aran.donohue:
> That's very interesting. I only brought it up because I'm thinking about the
> upcoming problems of real-time web application servers.
>
> I'm sure many people have seen this blog post and Dons's replies:
> http://www.codexon.com/posts/debunking-the-erlang-and-haskell-hype-for-ser
jason.dusek:
> 2010/04/30 Don Stewart :
> > Prior to the upgrade we weren't mostly beaten on speed, so I think a bit
> > of tuning (ghc -server :) should help.
>
> What do you mean by that? I tried searching the flags page:
>
>
> http://www.haskell.o
ketil:
>
> Don Stewart writes:
>
> > http://shootout.alioth.debian.org/u64q/haskell.php
>
> Observations:
>
> Although we're mostly beaten on speed, and about the same on code size,
> we're using a lot less memory than Java.
Prior to the upgrade we we
bulat.ziganshin:
> Hello Aran,
>
> Friday, April 30, 2010, 2:26:20 AM, you wrote:
>
> > In GHC, if a thread spawned by forkIO blocks on some network or
> > disk IO, is the threading system smart enough not to wake the thread
>
> afaik, yes. it's controlled by special i/o thread that multiplexes
The benchmarks game has been updated to use 6.12.2
Please dive in and help tweak/improve/spot any regressions.
Esp. with respect to multicore flags/options/...
- Forwarded message from Isaac Gouy -
Subject: fyi benchmarks game updated to ghc 6.12.2
http://shootout.alioth.debian.org/u64
We could bind to Rts.c in the GHC runtime, and get all the stats
programmatically that you can get with +RTS -s
mads.lindstroem:
> Hi
>
> I was _not_ looking for the OS-level measure, but rather something
> reported by the run-time. Thanks you for the answer anyway.
>
> /Mads
>
> On Tue, 2010-0
lrpalmer:
> 2010/4/25 Günther Schmidt :
> > Hello,
> >
> > HaskellDB makes extensive use of Singleton Types, both in its original
> > version and the more recent one where it's using HList instead of the legacy
> > implementation.
> >
> > I wonder if it is possible, not considering feasibility for
ivan.miljenovic:
> Martin Erwig writes:
>
> > Dear FGL users and contributors,
> >
> > The FGL seeks a new home. I don't really have the time anymore to
> > maintain the FGL and add new components at a level that it deserves. I
> > am therefore looking for someone (or a group of people) who would
jgoerzen:
> David Menendez wrote:
>> On Fri, Apr 23, 2010 at 10:11 PM, John Goerzen wrote:
>>> Don Stewart wrote:
>>>> Oh, the Platform has very strict standards about APIs,
>>>>
>>>> When a package may be added:
>>>>http://tr
dagit:
> Hmm...But who would be willing to take on the hard, tedious, and time
> consuming
> work of maintaining the CI build system? I think for this build system effort
> to really take off a group of a few deadicated volunteers would be necessary.
>
CI for the HP would be really easy, and ex
stephen.tetley:
> On 23 April 2010 21:14, Jason Dagit wrote:
> [Snip]
> > We don't (yet), have a tool to help detect when
> > a change in version number is needed or what the next version should be. We
> > leave this up to humans and it turns out, humans make mistakes :)
>
> Hi All,
>
> Did any
ivan.miljenovic:
> Don Stewart writes:
>
> > I'll just quickly mention one factor that contributes:
> >
> > * In 2.5 years we've gone from 10 libraries on Hackage to 2023
> > (literally!)
> >
> > That is a massive API to try to manage, he
jgoerzen:
> Don Stewart wrote:
>> I'll just quickly mention one factor that contributes:
>>
>> * In 2.5 years we've gone from 10 libraries on Hackage to 2023
>> (literally!)
>>
>> That is a massive API to try to manage, hence the continuing
I'll just quickly mention one factor that contributes:
* In 2.5 years we've gone from 10 libraries on Hackage to 2023 (literally!)
That is a massive API to try to manage, hence the continuing move to
focus on automated QA on Hackage, and automated tools -- no one wants
to have to resolve thos
v.dijk.bas:
> On Wed, Apr 21, 2010 at 8:07 PM, Aaron D. Ball
> wrote:
> > If I have the basic building block, which is the ability to
> > serialize a Haskell expression with its dependencies and read them
> > into another Haskell instance where I can evaluate them, I can handle
> > the other piece
aarondball+haskell:
> On Tue, Apr 20, 2010 at 14:05, Jason Dusek wrote:
>
> > One approach is some compiler "magic" that provides you with an RTS
> > that can communicate with other RTSen over TCP and chunks the computation
> > "appropriately".
>
> The approaches to Haskell multi-host paralle
liamoc:
> On 19 April 2010 05:29, Don Stewart wrote:
> > That's great info -- we do have an unregisterised ARM port of GHC in
> > Debian, iirc. (And the LLVM backend can generate ARM code too)
>
>
> Sounds good. With regards to LLVM, what dependencies does LLVM ARM
liamoc:
> Our best bet is to compile to ARM native code and then use the NDK to
> talk to the Java APIs.
> Cheers.
> ~Liam
That's great info -- we do have an unregisterised ARM port of GHC in
Debian, iirc. (And the LLVM backend can generate ARM code too)
___
chris:
>
> With that in place, AFAIK, the Haskell Platform built from source with the
> various configure scripts giving me enough hints to ‘yum install’ all the
> required CentOS packages.
>
Great work!
Is there a website documenting this effort? Or better yet: a binary package I
can add to th
rl:
> On 14/04/2010, at 09:05, Xiao-Yong Jin wrote:
>
> > I want to use 'mapM' on Data.Vector.Vector, but it looks
> > like the only 'mapM' defined is in
> > Data.Vector.Fusion.Stream.Monadic. I'm able to use 'stream'
> > and 'liftStream' to convert a 'Vector' to a monadic stream,
> > on which I
leather:
>
> 2. What is the difference between "Haskell" and the "Haskell Platform"? I see
> one or the other in various places. To get from www.haskell.org to downloading
> the Mac software, I go through "Download Haskell," "Get the Haskell Platform >
> Mac," and "Download Haskell for Mac OS X (i
wikigracenotes:
> The proposal as I submitted it is here:
>
> http://docs.google.com/View?docid=0Afa5MxwyB_zYZGhjanNrdjNfMjkzZjloOWNienY&pageview=1&hgd=1&hl=en
>
> And it might need further revision as I talk to Duncan and the
> community. The advanced social features wouldn't get deployed by the
alexey.skladnoy:
> Hello
>
> I found that there is no monadic map for vector. It's possible to define to
> define such map using conversion to list, but I suppose it's not efficient. I
> didn't make any measurements.
>
> > mapM' :: Monad m => (a -> m b) -> V.Vector a -> m (V.Vector b)
> > mapM'
greg:
> Jason Dagit writes:
>
> > If I understand correctly, the issue at hand is that the uninstaller
> > step is removing previous libraries and ghc?
>
> Not GHC; the HP installer removes old copies of the platform
> libraries. That's likely to break your old GHC setup though. What should
> it
leather:
> 1. Why can't the platform download site be hosted on www.haskell.org instead
> of
> hackage.haskell.org? I see that there's a redirect, but (imho) it would be
> ideal to have www.haskell.org/platform be the standard URL in my browser. It
> is
> easier to remember (for typing) and more
gue.schmidt:
> Hi all,
>
> I've never found an easy way to deal with ByteStrings.
>
> I'm using the RSA library and it en- and decodes
> Data.ByteString.Lazy.ByteString.
>
> I initially start with Strings, ie. [Char], but there is no function to
> convert the 2 back and forth. There is however
caseyh:
> Apparently, Erlang does not have a static type system, since with hot
> code loading, this is intrinsically difficult.
>
> "Erlang Programming", Francesco Cesarini & Simon Thompson, June 2009,
> O'Reilly, page 31.
>
> If Haskell allows hot code loading, would this throw a wrench into th
Hackage 2010 Q1 report
http://donsbot.wordpress.com/2010/04/03/the-haskell-platform-q1-2010-report/
After the big move of Hackage from monk to the new abbot server, here's
the first report on which packages are popular, and how Hackage is doing
in general.
-- Don
schlepptop:
> Don Stewart schrieb:
>> While at ZuriHac, a few of us GSoC mentors got together to discuss what
>> we think the most important student projects for the summer should be.
>>
>> Here's the list:
>>
>>
>> http://donsbot.wordpress.co
aditya.siram:
> Hi all,
> I would like to learn a little bit more about metaprogramming in
> Haskell. And I'm also wondering why metaprogramming is used much more
> in Ocaml than in Haskell.
>
> Camlp4 (Ocaml's metaprogramming facility) doesn't seem to much more
> powerful that Template Haskell. T
ivan.miljenovic:
> Don Stewart writes:
> > Well, you can 'script' GHC:
>
> [snip]
>
> > To at least get the fully qualified types exported from a module.
>
> Which increases the portability _how_ precisely? :p
>
Portability? You already have GHC o
rl:
> replicate :: Int -> a -> New a
> replicate n x = Generic.New.unstream (Fusion.Stream.replicate n x)
>
> and then either
>
> Mutable.run (replicate n x)
>
> to get a mutable vector or
>
> new (replicate n x)
Hmm, but here 'a' is pure. I don't think he wants
newWith :: (PrimMonad
ivan.miljenovic:
> Stephen Tetley writes:
> > I had a little experiment along the lines of "A Package Versioning
> > Policy Checker" a few months ago. I got as far as using
> > Haskell-src-exts to extract module export list, but didn't work out
> > out a hashing scheme for the actual type signatur
Chad.Scherrer:
> Hi,
>
> I'd like to be able to do replicateM, but over a vector instead of a list.
> Right now I'm doing this:
>
> import qualified Data.Vector.Generic as G
> import qualified Data.Vector.Unboxed.Mutable as M
> replicateM n action = do
> mu <- M.unsafeNew n
> let go !i | i
While at ZuriHac, a few of us GSoC mentors got together to discuss what
we think the most important student projects for the summer should be.
Here's the list:
http://donsbot.wordpress.com/2010/04/01/the-8-most-important-haskell-org-gsoc-projects/
Please consider applying to work on these t
DekuDekuplex:
> Sorry for the late response, but just out of curiosity, are there any
> plans to provide a binary installer for either the Haskell Platform or
> GHC 6.12.1 for Mac OS X Leopard for the PowerPC CPU (as opposed to for
> the Intel x86 CPU)? I just checked the download-related Web site
Certainly.
rl:
> I'm wondering... Since the DPH libraries are shipped with GHC by default are
> we allowed to use them for the shootout?
>
> Roman
>
> On 30/03/2010, at 19:25, Simon Marlow wrote:
>
> > The shootout (sorry, Computer Language Benchmarks Game) recently updated to
> > GHC 6.12.1,
gue.schmidt:
> Hi all,
>
> I notice that posts from the Haskell elders are pretty rare now. Only
> every now and then we hear from them.
>
> How come?
Because there is too much noise on this list, Günther
-- Don
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Haskell-C
ashley:
> Christopher Done wrote:
>> On 28 March 2010 23:32, Ashley Yakeley wrote:
>>> There was a big competition for the logo, with this blind Condorcet voting
>>> and everything, and this is the shape that was picked. But it kind of ran
>>> out of steam before colours were decided upon. So I ju
ivan.miljenovic:
> Don Stewart writes:
> > The best way to find out is to look at the 'cabal spec'
> >
> > http://code.haskell.org/haskell-platform/haskell-platform.cabal
>
> Which, of course, mentions Haddock 2.7.2 in passing, to the confusion of
jeremy:
> On a related note,
>
> I wanted to find out what version of parsec is included in the platform, but
> that version is not included on this page:
>
> http://hackage.haskell.org/platform/contents.html
>
> The package links just say 'parsec' and link to the lastest version on
> hackage.
This looks great!
What are the implementation details of having this go live?
* Ashley: would you be able to e.g. install an index.html like this,
and hang the wiki under it?
* How do we allow editing (by trusted users?)
-- Don
chrisdone:
> This is a post about re-designing th
velman:
> I had the same problem -- downloaded and installed the new Haskell
> Platform, and when I tried cabal I got the: dyld error. I'm also
> on OS X 10.5.8. Also, ghc users guide appears to be missing.
>
> I filed a bug report. To solve the cabal problem I got
> cabal-install ve
bos:
> you end up with a fearsome and complex set of typeclasses that are
> difficult to learn and follow.
And to optimize.
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depp:
> There's a problem with the Haskell Platform website. I'm posting the
> message here because I gave up looking for contact information for the
> site, maybe someone here can forward the message or tell me who to
> forward it to?
>
> The specific page is http://hackage.haskell.org/plat
ivan.miljenovic:
> Don Stewart writes:
> > The beta of the 2010.2.0.0 release is now up, which is based on GHC
> > 6.12.
>
> Hang on, you just announced 2010.1.0.0... have you suddenly released
> _another_ major version? :p
>
2010.1.0.0 is definited as a
We're watching *massive* traffic right now due to HP release.
It's not down, just very very busy.
For fun, here's a map of who's downloading Haskell:
http://imgur.com/flwPF.png
74 countries in 12 hours, and counting.
- Don
dougal:
> Hackage seems to be down again.
>
> $ cabal update
> Dow
Live from (post-) Zurihac, I'm pleased to announce the 2010.1.0.0 (beta branch)
release of the Haskell Platform, supporting GHC 6.12.
http://hackage.haskell.org/platform/
The Haskell Platform is a comprehensive, robust development environment for
programming in Haskell. For new users the plat
doaitse:
> It seems that I am being served old pages by my web browser from the
> cache on my machine. By reloading the platform page, I suddenly am
> asked what system I do have, from weher I am referred to the 6.12
> version of the platform,
Great!
___
doaitse:
> On the page:
>
> http://hackage.haskell.org/platform/
>
> I am told that the platform includes ghc-6.10.4, but if I click there
> on the "Haskell:batteries included" link to get to the page:
>
> http://hackage.haskell.org/platform/contents.html
>
> its states there that I get 6.12.1?
You should file a bug on the Haskell Platform bug tracker.
http://haskell.org/haskellwiki/Haskell_Platform#Trouble_shooting
And I'm CC'ing the dmg maintainer -- it may also be a GHC issue as well.
-- Don
warrensomebody:
> I downloaded the new haskell-platform-2010.1.0.0-i386.dmg today... ra
mujtaba.boori:
> Hello
>
> I would like to discuss my idea for google summer of code. I'm an active
> Haskell programmer . I have read the idea list . I think Improve Cabal's test
> support really suit my ability of haskell. I would like to give me advice
> about
> my idea . and how to improve
z_axis:
>
> Erlang has yaws (http://yaws.hyber.org/)
> Scala has lift (http://liftweb.net/)
> Python has django (http://www.djangoproject.com/)
> Ruby has rails (http://rubyonrails.org/)
>
> How about haskell ? Is there any similar framework, which should be steady,
> powerful and easy to use, in
dankna:
> For some time I have relied on Dons's Plugins package, which was
> perhaps something of a mistake as it's kind of messy inside and I
> don't think it's maintained. With the upgrade to GHC 6.12, it broke
> for me, and I wasn't able to get it fixed. But I was able to write my
> own subset
texitoi:
> After programming as an exercice the sum function, my version is
> faster than the Data.List's version. Looking at the source code,
> Data.List uses a foldl and not a foldl'. foldl' seems faster and
> allows to use very big lists. So, why is foldl used by Data.List for
> sum?
>
It's co
jake.mcarthur:
> I've run into an issue with inlining that I'm not sure how to work
> around. I am instantiating some pre-existing type classes with
> Vector-based types. There already exist generic functions in modules I
> do not control that use this type class, and they are not tagged with
ajs:
>
> On Mar 7, 2010, at 12:56 PM, Don Stewart wrote:
>
>
> In fact, infinite vectors make no sense, as far as I can tell -- these
> are fundamentally bounded structures.
>
>
> Fourier analysis? Functional analysis? Hamel bases in Real analysis? T
edgar:
> Hello,
>
> why I can't define a recursive vector using Data.Vector, like in
> the example:
>
> import qualified Data.Vector as V
>
> let fib = 0 `V.cons` (1 `V.cons` V.zipWith (+) fib (V.tail v))
>
There's a typo:
fib = 0 `V.cons` (1 `V.cons` V.zipWith (+) fib (V.tail fib))
Which
gue.schmidt:
> Hi all,
>
> all going well this year I'll be able to invest some money on becoming a
> better Haskeller.
>
> I think I've reached the point where I need some tutoring, so provided
> I've got money for travel and course fees, and time, where do I get it?
> I'm not a student so s
Sounds like the known issue of ghc --make (the compilation manager)
retaining meta data (like .hi file info) when compiling many modules.
This isn't the case with one-shot compiltation.
I'm not sure there's anything you can do about it.
aslatter:
> Including ghc-users.
>
> On Sat, Mar 6, 2010 a
malcolm.wallace:
>> I'd also like to point to Nix[3] and Cabal[4] for ideas, and I bet
>> most
>> of the dependency analysis could be ripped from the latter.
>
> Hrrm, sadly Cabal has no dependency analysis at all - everything must be
> specified by the author of the .cabal file, both modules an
cjs:
> On 2010-03-01 19:37 + (Mon), Thomas Schilling wrote:
>
> > A possible workaround would be to sprinkle lots of 'rnf's around your
> > code
>
> As I learned rather to my chagrin on a large project, you generally
> don't want to do that. I spent a couple of days writing instance
> of
bugfact:
> Using GHC 6.12.1 on Windows currently is hard, since one must compile
> the latest version of cabal-install, which is a nightmare to do for a
> typical windows user (install mingw, msys, utils like wget, download
> correct package from hackage, compile them in correct order, etc etc)
>
sk:
> hi,
>
> two questions in one post:
>
> i've been hunting down some performance problems in DSP code using vector and
> the single most important transformation seems to be throwing in INLINE
> pragmas
> for any function that uses vector combinators and is to be called from
> higher-level c
I hope to turn it all into a tool.
vanenkj:
> What's the chance you have generational graphs for the rest of your examples
> like you do with the first? I'd be interested to see those.
>
> On Mon, Mar 1, 2010 at 3:02 AM, Don Stewart wrote:
>
>
> http://d
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