Re: [Haskell-cafe] Compiler stops at SpecConstr optimization

Yes, that GHC ticket shows that this problem is well known. Thank you. On Fri, Aug 30, 2013 at 2:19 AM, Ben Lippmeier b...@ouroborus.net wrote: On 30/08/2013, at 2:38 AM, Daniel Díaz Casanueva wrote: While hacking in one of my projects, one of my modules stopped to compile for apparently

[Haskell-cafe] Compiler stops at SpecConstr optimization

appropriate. Thank you, Daniel Díaz. -- References [1] - https://github.com/ghc/ghc/blob/ghc-7.6.3-release/compiler/main/DynFlags.hs#L2266 ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] ANN: processing-1.2.0.0. Graphic web applications with processing.js.

Hello readers of Haskell-Cafe. Yesterday I uploaded a new version of the processing library [1]. == What is this library for? == The library is oriented to create graphic applications that run in a web browser, with no need of running a server. It provides the user with a set of functions and

Re: [Haskell-cafe] Does exist something like data-files in Cabal, which works at compile time?

What I have always done to solve this is to create a custom Setup.hs. Something like: Setup.hs - import Distribution.Simple main :: IO () main = doThisBeforeInstall defaultMain - Then you specify in your .cabal file that the Build-Type is Custom. Best regards, Daniel

[Haskell-cafe] Automatically test different versions of single dependency

Hello everyone. I would like to check what dependencies is one of my packages compatible with. For example, say I have a package called foo that depends on package bar. Most likely, foo does not build with each version of bar. What I want to do is try to build foo with each single version of bar

Re: [Haskell-cafe] Automatically test different versions of single dependency

, or any other clever ideas that I didn't manage to think of. However, this looks like the best approach right now. Thank you, Daniel Díaz. On Thu, Jul 4, 2013 at 2:36 PM, Alp Mestanogullari alpmes...@gmail.comwrote: You can just write a bash script that will do: cabal install --constraint

Re: [Haskell-cafe] Custom Setup.hs and Paths module

, 2013 at 3:39 AM, Erik de Castro Lopo mle...@mega-nerd.comwrote: Daniel Díaz Casanueva wrote: Hi everyone. I am writing a package where I am using the Paths module that cabal generates automatically. After adding the Paths module to the other-modules section in my cabal file everything

[Haskell-cafe] Custom Setup.hs and Paths module

in the system and then calls defaultMain. The thing is that now cabal install does not find the Paths module, so the package is broken. Any thoughts? I need your help, people! Thank you, Daniel Díaz. ___ Haskell-Cafe mailing list Haskell-Cafe

[Haskell-cafe] ANN: HaTeX 3.6. Now with Babel, TikZ and more!

accepted. Good luck, Daniel Díaz. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] ANNOUNCE: standalone-haddock-1.0

Hello Roman! Thank you, this is a great contribution. I found myself several times modifying the html output by hand in order to do exactly this. Nice! On Fri, Jun 7, 2013 at 2:15 PM, Roman Cheplyaka r...@ro-che.info wrote: I am happy to announce the first release of standalone-haddock.

[Haskell-cafe] Fwd: Cabal config file Guide

Thank you, Albert, what you wrote is very useful. Why the Cabal Guide is lacking this kind of information? Maybe I should start gathering information in one place myself! Thank you, Daniel Díaz. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org

[Haskell-cafe] Cabal config file Guide

aren't. Therefore, in order to know what these options do, you have to search info about that one specifically, when it would be much more convenient to have all the information together. So, is there any place like this out there in the web? Thank you, Daniel Díaz

[Haskell-cafe] Good to find you on LinkedIn

LinkedIn Daniel Díaz Casanueva requested to add you as a connection on LinkedIn: -- Minh Thu, I'd like to add you to my professional network on LinkedIn. - Daniel Accept invitation from Daniel Díaz Casanueva http

Re: [Haskell-cafe] Good to find you on LinkedIn

My apologies, I don't know how this e-mail has reached the Haskell-Cafe. Sincerely, Daniel Díaz. On Wed, May 15, 2013 at 11:44 PM, Daniel Díaz Casanueva mem...@linkedin.com wrote: [image: LinkedIn Logo] http://www.linkedin.com/ Minh Thu, ** Daniel Díaz

Re: [Haskell-cafe] list comprehension doesn't work

Hopefully, these problems will look easier separately. Well, it's just an idea. Good luck, Daniel Díaz. On Tue, May 14, 2013 at 4:57 PM, John knowledge1...@gmail.com wrote: Hi, I have to write a function which returns a list of all pairs (x,y) where x, y ∈ N AND: – x is the product

Re: [Haskell-cafe] list comprehension doesn't work

Well, definitely, isSqrt should be called isSquare. On Tue, May 14, 2013 at 5:22 PM, Daniel Díaz Casanueva dhelta.d...@gmail.com wrote: You can always write it like this: listPairs = [ (x,y) | x - [6 .. 499] , y - [0 .. 1000] , isProduct x , isSqrt y , mod y x == 0 ] So you have

Re: [Haskell-cafe] list comprehension doesn't work

already done, that this questions fits in better in the Haskell-Beginners mailing list. http://www.haskell.org/mailman/listinfo/beginners I hope this works for you, Daniel Díaz. Thanks again to all -- View this message in context: http://haskell.1045720.n5.nabble.com/list-comprehension

Re: [Haskell-cafe] Building the Haskell Platform in Linux

, Daniel Díaz Casanueva wrote: Hi cafe! Probably you all know how to do this, but I myself found confused when building the Haskell Platform in Linux for my first time. I was using Linux for my first time too! The first problem I encountered was to decide what linux packages install to make

Re: [Haskell-cafe] [Announcement] Sparse matrix Conjugate Gradient Solver

solving partial differential equations. Bug reports, feedback, and improvements are always welcome. -Levent. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- E-mail sent by Daniel

Re: [Haskell-cafe] NaN as Integer value

the same thing. I think this is cleaner solution add NaN as a value to the Integer type. Good luck, Daniel Díaz. On Sat, Apr 13, 2013 at 12:16 PM, Алексей Егоров elect...@list.ru wrote: Hello haskellers, is there a reason why Integer doesn't have 'NaN' as value? I think it would be very

[Haskell-cafe] Building the Haskell Platform in Linux

to start all over again, forgetting what I have learned so far, I would fine this list very useful! This thought is what brought me here to make it public. Who knows, maybe I am saving somebody of some google searches and trials and errors. With my best intentions, Daniel Díaz. -- E-mail sent

Re: [Haskell-cafe] Haskell / Functional Programmers Group in Madrid (Spain)?

this. Saludos de un malagueño, Daniel Díaz. On Wed, Apr 10, 2013 at 3:50 AM, Alejandro Serrano Mena trup...@gmail.comwrote: Hi, Is there any Haskell or functional programmers user group in the region of Madrid? If not, I think it could be a great idea to get to know each other, and share

[Haskell-cafe] ANNOUNCE: HaTeX-3.5 - New version of the LaTeX library

://hackage.haskell.org/package/HaTeX-3.5 For those who don't know, HaTeX is a combinator library for LaTeX code. Read more in the manual: https://github.com/downloads/Daniel-Diaz/HaTeX-Guide/HaTeX-Guide.pdf I recommend to HaTeX users to upgrade to this new version. Good luck, Daniel Díaz. -- E-mail

Re: [Haskell-cafe] Some aggregation of Haskell content

http://www.haskell.org/mailman/listinfo/haskell-cafe -- E-mail sent by Daniel Díaz Casanueva let f x = x in x ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Data.Sequence and replicateM

f really is a kind of specialization of g. Could the reason for f performing better be list fusion? Anything happening inside Control.Monad.replicateM should be subject to it. Cheers, Thomas Am 24.01.2013 15:31, schrieb Daniel Díaz Casanueva: Hi Cafe, I was coding this morning when I

[Haskell-cafe] Data.Sequence and replicateM

a - m (Seq a) g = Seq.replicateM Maybe is just in my test case, where the Int argument is big and the monadic action short, but it looks to me that Data.Sequence.replicateM can be faster than it is right now. Regards, Daniel Díaz. -- E-mail sent by Daniel Díaz Casanueva let f x = x in x

Re: [Haskell-cafe] Data.Sequence and replicateM

Good point. However, I forced the result to evaluate using `deepseq` and I still got similar results. On Thu, Jan 24, 2013 at 11:41 AM, Gershom Bazerman gersh...@gmail.comwrote: On 1/24/13 9:31 AM, Daniel Díaz Casanueva wrote: import Control.Monad import qualified Data.Sequence as Seq

Re: [Haskell-cafe] Gloss and relatively expensive computations

s w putMVar var w' loop w' forkIO $ loop w0 simulateIO ... (\_ _ w - fmap (fromMaybe w) $ tryTakeMVar var) And it's working just fine! Best regards, Daniel Díaz. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http

[Haskell-cafe] Object Oriented programming for Functional Programmers

favorite programming language? * Will I learn new programming strategies that I can use back in the Haskell world? Thanks in advance for your kind responses, Daniel Díaz. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman

Re: [Haskell-cafe] ANNOUNCE: haskell-docs - Given a module name and a name, it will find and display the documentation of that name.

This is something I always missed. Thank you! ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] Gloss and relatively expensive computations

with any pointer here. Thanks in advance, Daniel Díaz. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Problem with forall type in type declaration

! Hope it helps! Daniel Díaz. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] Cabal try to install a package I already have

compile time error with unknown symbol errors. I felt very odd so I switched this machine to the Haskell Platform. I hope someone could help me. Thanks in advance, Daniel Díaz. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org

Re: [Haskell-cafe] Cabal try to install a package I already have

Indeed, it seems to be for parsec: ? ghc-pkg latest bytestring bytestring-0.9.1.10 ? ghc-pkg latest parsec parsec-3.1.2 Haskell Platform versions: bytestring-0.9.1.10, parsec-3.1.1. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org

Re: [Haskell-cafe] Cabal try to install a package I already have

I have spent some time and, when I unregistered (with ghc-pkg unregister) all dependencies (even indirect dependencies) I have installed since I have the Haskell Platform, then the cabal install ftphs worked. Now I feel I understand the problem, but still seems annoying. Thanks for the pointer,

[Haskell-cafe] Announce: HaTeX 3.3

://deltadiaz.blogspot.com.es/2012/04/hatex-33-release-notes.html Thanks and good luck, Daniel Díaz. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] [ANNOUNCE] HaTeX 3.2

added to AMSMath module. + New LaTeX package implemented: graphicx. + Function 'documentclass' changed. Further information on this release: http://deltadiaz.blogspot.com/2012/02/hatex-chapter-32.html Library homepage: http://dhelta.net/hprojects/HaTeX Thanks for reading, Daniel Díaz

Re: [Haskell-cafe] [Haskell] [ANNOUNCE] JuicyPixels 1.0 - image loading library

luck, Daniel Díaz. On Fri, Jan 13, 2012 at 6:26 PM, Vincent Berthoux vincent.berth...@gmail.com wrote: Hello, I'd like to announce the first release of JuicyPixels, an image loading library written entirely in Haskell. The focus of this library is ease of use and correct loading

[Haskell-cafe] ANNOUNCE: HaTeX 3.1.0 (and HaTeX-meta 1.1.0)

Hello Cafe! Today I released to Hackage a new version of the HaTeX package ( http://hackage.haskell.org/package/HaTeX-3.1.0 ). If you don't know HaTeX, it is a combinator library of the LaTeX syntax. Visit the homepage for more information: http://dhelta.net/hprojects/HaTeX Highlights: + Added

[Haskell-cafe] Overloaded Strings as default

Hi Cafe, I only feel curious about what would be the consequences of becoming the Overloaded Strings feature (currently, an extension) to be default in Haskell. This is not a proposal. I just want to know what pros and cons there are. Thanks! ___

Re: [Haskell-cafe] Hackage feature request: E-mail author when a package breaks

maintain. Furthermore, since the field would be optional, you still can avoid to receive these mails. -- Daniel Díaz ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Hackage feature request: E-mail author when a package breaks

Then, the mailing list seems to be an option. But then I will receive mails for every package, and there is a lot of packages! Is not a lot of mails this? There is another work around? ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org

[Haskell-cafe] SpecConstr message while compiling

wrong or a I don't need to take care about this. Thanks in advance, Daniel Díaz. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] SpecConstr message while compiling

notoriously, and I won't see changes in performance. But I will follow your pointers when necessary in the future. On Sun, Oct 23, 2011 at 7:50 PM, Daniel Fischer daniel.is.fisc...@googlemail.com wrote: On Sunday 23 October 2011, 19:33:55, Daniel Díaz Casanueva wrote: Hi, cafe! I wrote

[Haskell-cafe] SSH in community.haskell.org

? Well, I have a public key I didn't put anywhere yet (but in the community registration). I guess I'm lacking some authentication, but I don't know how to solve it. I hope someone can give me some pointers! Thanks in advance! And sorry if this is not a strictly-related Haskell question. Daniel Díaz

Re: [Haskell-cafe] SSH in community.haskell.org

Thanks JP and Ivan for the quick response! Anyway, it seems I lack the private key mentioned (all I have is the public key), and that sounds bad. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] ANNOUNCE: HaTeX 3 - First release

this. HaTeX-meta in Hackage: http://hackage.haskell.org/HaTeX-meta A continously updated version of the source code from these packages can be found at: http://dhelta.net/hprojects/HaTeX/code http://dhelta.net/hprojects/HaTeX-meta/code Thanks for reading, Daniel Díaz

Re: [Haskell-cafe] ANNOUNCE: HaTeX 3 - First release

It seems there is an error in the hackage URL's. Working URL's: http://hackage.haskell.org/package/HaTeX http://hackage.haskell.org/package/HaTeX-meta Sorry! ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org

Re: [Haskell-cafe] Installing Gtk2Hs on Win32

Hi, Dmitri, here is newer guide, with updated links: http://deltadiaz.blogspot.com/2011/03/on-windows-how-to-install-gtk.html Hope it helps! On Fri, Jun 10, 2011 at 5:30 PM, Dmitri O.Kondratiev doko...@gmail.comwrote: Please help to find pre-compiled binary libraries of Gtk+ for Win32.

[Haskell-cafe] ANNOUNCE: Clipboard-2.2.0. System clipboard interface.

Hi all, I've just uploaded Clipboard-2.2.0 to Hackage [1]. Clipboard [2] is a library that provides an interface for the system clipboard. The API is very simple, so anyone can use it without knowing of low-level Win32 API. Currently, this library only works on a Windows OS, due to its

[Haskell-cafe] Bytestring package: Int and Int64

Hi, cafe, I just feel curiosity. In the bytestring package, Data.ByteString module, functions like length, index, and others with Int in its type signature, have Int64 in the analogous Data.ByteString.Lazy version. What is the reason? -- Daniel Díaz

Re: [Haskell-cafe] Bytestring package: Int and Int64

On Tue, 24 May 2011 10:42:34 +0200, Johan Tibell wrote: Hi Daniel, On Tue, May 24, 2011 at 10:07 AM, Daniel Díaz danield...@asofilak.es wrote: Hi, cafe, I just feel curiosity. In the bytestring package, Data.ByteString module, functions like length, index, and others with Int in its type

[Haskell-cafe] Blocking problem reading a handle

: hGetBufNonBlocking doesn't work on Windows: http://hackage.haskell.org/trac/ghc/ticket/806 This was a bad surprise. How can achieve my purpose without hGetBufNonBlocking? Thanks in advance, Daniel Díaz ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http

Re: [Haskell-cafe] Install GTK on Windows

I have installed successfully the gtk package on Windows. GTK version: 2.16 gtk package version: 0.12.0 Haskell Platform version: 2010.2.0.0 I have detailed my steps (very similar to Mark Shroyer steps) here: http://deltadiaz.blogspot.com/2011/03/on-windows-how-to-install-gtk.html It seems

[Haskell-cafe] Error while registering packages: cairo glib

But I never had this problem before. Thanks for any help, Daniel Díaz ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] Uncatchable error

. The function 'catch' doesn't work. I guess this error comes from a call to 'error' function, or something similar. What I can do? Thanks in advance, Daniel Díaz ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo

[Haskell-cafe] Install GTK on Windows

libraries: gobject-2.0, gthread-2.0, glib-2.0, intl I've searched for these libraries, and, with --extra-include-dirs=, I've included them. But the same error was thrown. I'm sure I'm doing something wrong or, perhaps, I'm missing something. Any help is welcomed! Thanks in advance, Daniel Díaz

Re: [Haskell-cafe] Install GTK on Windows

\Escritorio\GTK\gtk+-bundle_2.16.6-20100912_win32\bin C:\Archivos de programa\Haskell Platform\2010.2.0.0\mingw\bin PKG_CONFIG_PATH and INCLUDE are empty now. Following the Mark Shroyer's guide, these variables are not mentioned. -- Daniel Díaz

Re: [Haskell-cafe] Install GTK on Windows

Thanks for the responses, but my error remains. I wrote two scripts, following both different instructions. Script 1: @echo off title GTK Haskell Setup echo * Add GTK bin folder. set PATH=%PATH%;C:\Documents and Settings\User\Escritorio\GTK\GTKAIO\bin echo * Add GTK include folder. set

Re: [Haskell-cafe] Install GTK on Windows

think the problem here is another. Anyway, I will test it. -- Daniel Díaz ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Equality constraint synonyms

a) It seems a very nice feature. I commonly write the same context many times. In other cases, I need to make the same change on many equal contexts. I wonder if there is something negative in this feature. -- Daniel Díaz ___ Haskell-Cafe mailing list

[Haskell-cafe] cabal update error

appreciate an explanation (or possible explanation), rather than an update it manually. Thanks in advance. -- Daniel Díaz ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] cabal update error

El Sab, 13 de Noviembre de 2010, 10:33 am, Ivan Lazar Miljenovic escribió: On 13 November 2010 19:48, Daniel Díaz danield...@asofilak.es wrote: Hi all, I just installed the Haskell Platform, and when I try cabal update, I have the following output: Downloading the latest package list from

[Haskell-cafe] Subcategories in Hackage

different roles. Perhaps, this is madness, but I wanted to read other opinions on this topic. -- Daniel Díaz ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Subcategories in Hackage

* SUBCAT. A2 ** Pack. 2 ** Pack. 3 CAT. B * SUBCAT. B1 ** Pack. 4 ** Pack. 3 * SUBCAT. B2 ** Pack. 1 ** Pack. 5 Thanks for the opinion. -- Daniel Díaz ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Operator precedence

Take a look to the Haskell Report: http://www.haskell.org/onlinereport/haskell2010/haskellch9.html#x16-1710009 -- Daniel Díaz ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Operator precedence

Those are all operators in Prelude. See a concrete library for their operator precedences. -- Daniel Díaz ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Operator precedence

El Lun, 6 de Septiembre de 2010, 7:50 pm, David Menendez escribió: Operators default to infixl 9 unless specified otherwise, so no infix declaration is needed. Why there is a default infix? Why it is 9? -- Daniel Díaz ___ Haskell-Cafe mailing list

Re: [Haskell-cafe] New .hs File Icons

GHC's icon is a little different from Hugs' icon. However, your icon is prettier. WinGHCi's icon is nice too. Off course, it's just an opinion. -- Daniel Díaz ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman

Re: [Haskell-cafe] Re: Can we come out of a monad?

I don't understand why to call impure to the types instances of a class. Monad is simply a class with their methods. Even the pure list is a monad. The only difference between Monad and other classes is do notation, and only affects notation. The impure side is a type, not a class: IO.

[Haskell-cafe] Haskell Forum

Hi all, I want to open a Haskell forum based on phpBB, but I need some collaborators for organize its content, and moderate its use. When we have finished, I will open this forum for the entire community of Haskell! If you are interested, mail me: danield...@asofilak.es Thanks in advance.

Re: [Haskell-cafe] Haskell Forum

Well, I thought that it may be a more comfortable way to communicate between us. Specially for newcomers. Don't forget that Haskell is a growing community. It's just my opinion. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org

[Haskell-cafe] HaTeX build failure

Hi, I uploaded a package, named HaTeX, to Hackage, but it gets a build failure: cabal: Couldn't read cabal file ./HaTeX/1.0.0/HaTeX.cabal It makes reference to 1.0.0 version, even when building version 1.0.1. I get the same error when I use cabal install. However, using configurebuildregister