[Haskell-cafe] FP Complete competition clarification

2013-09-26 Thread Mike Meyer
it must be unpublished. So, if you're looking for a good excuse to document an existing project, how about a chance to win $1000 by doing so? ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] Fwd: [GSoC 2013] Porting Charts to Diagrams - Final Report

2013-09-26 Thread Jan Bracker
://github.com/timbod7/haskell-chart/blob/master/chart-diagrams/Graphics/Rendering/Chart/Backend/Diagrams.hs#L26 [12]: http://hackage.haskell.org/package/diagrams-svg [13]: https://github.com/timbod7/haskell-chart/wiki/How-to-use-backends ___ Haskell-Cafe

Re: [Haskell-cafe] Hackage 2 switchover imminent

2013-09-26 Thread Duncan Coutts
Consultant Well-Typed LLP, http://www.well-typed.com/ ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] FP Complete competition clarification

2013-09-26 Thread Ivan Perez
to document an existing project, how about a chance to win $1000 by doing so? ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe ___ Haskell-Cafe mailing

Re: [Haskell-cafe] Why superclass' instances are bad idea?

2013-09-26 Thread Wvv
/html/users_guide/type-class-extensions.html#instance-overlap ). ___ Haskell-Cafe mailing list Haskell-Cafe@ http://www.haskell.org/mailman/listinfo/haskell-cafe -- View this message in context: http://haskell.1045720.n5.nabble.com/Why

Re: [Haskell-cafe] Looking for numbers to support using haskell

2013-09-26 Thread Carter Schonwald
things that would turn into an elevator pitch of I can show you how to be X times more productive than you are using Y, and then the article provides the evidence to support that claim. Thanks, Mike ___ Haskell-Cafe mailing list Haskell-Cafe

[Haskell-cafe] Proposal: RankedInstances

2013-09-26 Thread Wvv
else if x = y then LT else GT So now we have both Ord' a for nonEQ data and for Eq data. And this has a backward compatibility! -- View this message in context: http://haskell.1045720.n5.nabble.com/Proposal-RankedInstances-tp5737152.html Sent from the Haskell - Haskell-Cafe

[Haskell-cafe] Poll plea: State of GUI graphics libraries in Haskell

2013-09-26 Thread Conal Elliott
to replies. Thanks, -- Conal ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Poll plea: State of GUI graphics libraries in Haskell

2013-09-26 Thread aditya siram
forward to replies. Thanks, -- Conal ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http

Re: [Haskell-cafe] Poll plea: State of GUI graphics libraries in Haskell

2013-09-26 Thread KC
high-level composable and efficient GUI and graphics libraries on top of a working foundation. Looking forward to replies. Thanks, -- Conal ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] [ANNOUNCE] cereal-0.4.0.0

2013-09-26 Thread Trevor Elliott
-0.4.0.0 smime.p7s Description: S/MIME Cryptographic Signature ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Poll plea: State of GUI graphics libraries in Haskell

2013-09-26 Thread Conrad Parker
___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Problem with HXT `when`

2013-09-25 Thread Vlatko Basic
to Haskell and would like to check. br, vlatko Original Message Subject: Re: [Haskell-cafe] Problem with HXT `when` From: Albert Y. C. Lai tre...@vex.net To: haskell-cafe@haskell.org Date: 25.09.2013 03:22 On 13-09-21 05:13 AM, Vlatko Basic wrote: I'd like to extract

Re: [Haskell-cafe] Hackage 2 switchover imminent

2013-09-25 Thread Duncan Coutts
there are several admins. -- Duncan Coutts, Haskell Consultant Well-Typed LLP, http://www.well-typed.com/ ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] Haskell Weekly News: Issue 281

2013-09-25 Thread Daniel Santa Cruz
such a job, how important would a Domain: self.haskell, Score: 44, Comments: 50 On Reddit: [11] http://goo.gl/KA998k Original: [12] http://goo.gl/KA998k * [Haskell-cafe] PSA: do not install xcode 5 if you are using ghc 7.6 Domain: haskell.org, Score: 43, Comments: 4 On Reddit

[Haskell-cafe] Haskell Job Opportunity (Remote Work)

2013-09-25 Thread Benny
at: be...@shotvibe.com Please feel free to forward this email to any friends or acquaintances that may be interested. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-24 Thread Sven Panne
something different, which is probably several magnitudes slower. :-/ ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] Hackathon der Frankfurt-Haskell-User-Group

2013-09-24 Thread Peter Althainz
the Frankfurt Haskell User Group announces its first Hackathon, if interested, see here: http://www.meetup.com/Frankfurt-Haskell-User-Group/events/138895112/ Peter Althainz ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-24 Thread Stijn van Drongelen
. The point here is that IEEE floats are actually more something like a Maybe Float, with various Nothings, i.e. the infinities and NaNs, which all propagate in a well-defined way. So, `Either IeeeFault Float`? ;) ___ Haskell-Cafe mailing list Haskell

[Haskell-cafe] Why superclass' instances are bad idea?

2013-09-24 Thread Wvv
. Why? I don't understand. Not every Applicative is a Monad, but every Monad is Applicative -- View this message in context: http://haskell.1045720.n5.nabble.com/Why-superclass-instances-are-bad-idea-tp5737056.html Sent from the Haskell - Haskell-Cafe mailing list archive at Nabble.com

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-24 Thread John Lato
be no point to it. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Problem with HXT `when`

2013-09-24 Thread Albert Y. C. Lai
) ) ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] Hackage 2 switchover imminent

2013-09-24 Thread Duncan Coutts
/ ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Why superclass' instances are bad idea?

2013-09-24 Thread John Lato
in context: http://haskell.1045720.n5.nabble.com/Why-superclass-instances-are-bad-idea-tp5737056.html Sent from the Haskell - Haskell-Cafe mailing list archive at Nabble.com. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http

[Haskell-cafe] A thought on the LinkedIn spam and an upstream spam filter

2013-09-23 Thread damodar kulkarni
of an idea which I call upstream spam filter. Anyway here is the text: I thought, some people here on the list, who might have links with the higher-ups at linked-in might bring the issue to their notice and would make them *register* the Haskell-Cafe list on their server so that they never send a spam

Re: [Haskell-cafe] A thought on the LinkedIn spam and an upstream spam filter

2013-09-23 Thread Vo Minh Thu
Hi, Thanks for the heads-up. I have just checked my email addresses registered on linkedin: I had three of them, my regular email address (this one), me previous work address, which I never added myself, and haskell-cafe, which I did not add myself either. My regular address was labeled

[Haskell-cafe] FFI: how to handle external dll crashes

2013-09-23 Thread Miro Karpis
putStrLn $ Result: ++ show result Is there a way how I can handle this? cheers, m. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] PSA: do not install xcode 5 if you are using ghc 7.6

2013-09-23 Thread Edsko de Vries
___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] Embedding compiled Haskell Platform in custom application

2013-09-23 Thread blackbox.dev.ml
) in installer of my application? ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] FFI: how to handle external dll crashes

2013-09-23 Thread Niklas Hambüchen
. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo

Re: [Haskell-cafe] FFI: how to handle external dll crashes

2013-09-23 Thread Miro Karpis
$ Result: ++ show result Is there a way how I can handle this? cheers, m. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] FFI: how to handle external dll crashes

2013-09-23 Thread Niklas Hambüchen
haskell code is not 100% correct. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Embedding compiled Haskell Platform in custom application

2013-09-23 Thread Henk-Jan van Tuyl
networked computer and get us closer sooner. Watch the video. http://folding.stanford.edu/ http://Van.Tuyl.eu/ http://members.chello.nl/hjgtuyl/tourdemonad.html Haskell programming -- ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http

Re: [Haskell-cafe] FFI: how to handle external dll crashes

2013-09-23 Thread Miro Karpis
. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] Looking for numbers to support using haskell

2013-09-23 Thread Mike Meyer
to support that claim. Thanks, Mike ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Creating a local Hoogle ...

2013-09-23 Thread John Wiegley
: rehoo -j4 -c64 . Where 4 is for a 4-core machine. -- John Wiegley FP Complete Haskell tools, training and consulting http://fpcomplete.com johnw on #haskell/irc.freenode.net ___ Haskell-Cafe mailing list

Re: [Haskell-cafe] Looking for numbers to support using haskell

2013-09-23 Thread MigMit
___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Looking for numbers to support using haskell

2013-09-23 Thread Nick Vanderweit
how to be X times more productive than you are using Y, and then the article provides the evidence to support that claim. Thanks, Mike ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Strange exit status behavior from the process package

2013-09-23 Thread Michael Xavier
associates allber...@gmail.com ballb...@sinenomine.net unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net -- Michael Xavier http://www.michaelxavier.net ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http

Re: [Haskell-cafe] Looking for numbers to support using haskell

2013-09-23 Thread Eric Rasmussen
to support that claim. Thanks, Mike ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe ___ Haskell-Cafe mailing list Haskell-Cafe

[Haskell-cafe] Minh Thu, please add me to your LinkedIn network

2013-09-22 Thread Kyle Hanson via LinkedIn
%2F%2Fhelp%2Elinkedin%2Ecom%2Fapp%2Fanswers%2Fdetail%2Fa_id%2F4788/-GXI/?hs=falsetok=0-VFub_99PWlU1 (c) 2012, LinkedIn Corporation. 2029 Stierlin Ct, Mountain View, CA 94043, USA. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http

Re: [Haskell-cafe] type-level integers, type-level operators, and most specific overlapping instance

2013-09-22 Thread TP
___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] type-level integers, type-level operators, and most specific overlapping instance

2013-09-22 Thread adam vogt
Context = InstanceHead instance (Constraint, Constraint2) = InstanceHead Regards, Adam ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] type-level integers, type-level operators, and most specific overlapping instance

2013-09-22 Thread TP
definition (which is indeed the definition in the Haskell report). Thanks in advance, TP ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Minh Thu, please add me to your LinkedIn network

2013-09-22 Thread damodar kulkarni
What a surprise, I didn't know the real name of Haskell Cafe till date, BUT today I came to know it: it is Minh Thu V. linked in sucks ... Thanks and regards, -Damodar Kulkarni On Sun, Sep 22, 2013 at 2:53 PM, Kyle Hanson via LinkedIn mem...@linkedin.com wrote: [image: LinkedIn] http

Re: [Haskell-cafe] Music update

2013-09-22 Thread Dan Krol
/master/src/Sound/MidiPlayer.hs in there. Enjoy! - Mark P.S.: Yes, and now that that's done with, I can get on with the next Haskell Platform release! ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo

[Haskell-cafe] Cabal install build of scion-browser 0.2.18 fails when linking Persistent-sqlite1.21

2013-09-22 Thread Stephen Taylor
that I can provide EclipseFP with a usable scion-browser, would be greatly appreciated. Thanks ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-22 Thread Richard A. O'Keefe
/summary?doi=10.1.1.22.6768‎ Most of the unpleasant surprises people have with Haskell floating point numbers are *floating point* surprises, not *Haskell* surprises. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman

[Haskell-cafe] GSoC Result - Communicating with Mobile devices - Push Notifications

2013-09-22 Thread Marcos Pividori
://gsoc.marcospividori.com.ar [6] http://gsoc.marcospividori.com.ar/apps ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-21 Thread damodar kulkarni
. mike ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-21 Thread Bardur Arantsson
these dangerous/suprising instances become available.) Regards, ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-21 Thread Stijn van Drongelen
implementation. * As mentioned, there is a total order (Ord) on floats (which is what you should be using when checking whether two approximations are approximately equal), which implies that there is also an equivalence relation (Eq). ___ Haskell-Cafe mailing

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-21 Thread Colin Adams
). how do you get a total order when nan compares false with everything including itself? ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-21 Thread Stijn van Drongelen
equal), which implies that there is also an equivalence relation (Eq). how do you get a total order when nan compares false with everything including itself? Good point. It should be a partial order. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-21 Thread Mike Meyer
. A wrapper around a hardware type for people who want that performance and can deal with its quirks should provide access to as much of the types behavior as possible, and equality comparison is part of IEEE 754 floats. mike ___ Haskell-Cafe mailing list

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-21 Thread Stijn van Drongelen
754 floats. mike ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe I do have to agree with Damodar Kulkarni that different laws imply different classes. However, this will break

[Haskell-cafe] Problem with HXT `when`

2013-09-21 Thread Vlatko Basic
___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] using default declaration for overloaded numeric operations

2013-09-21 Thread TP
Thanks in advance, TP ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] ANNOUNCE: New OpenGL packages

2013-09-21 Thread Ivan Perez
the misspelled ContinueExectuion constructor and added a new one correctly called ContinueExecution instead. * Use ccall instead of stdcall on x86_64-windows. * Do not expose internal #hidden modules. ___ Haskell-Cafe mailing list Haskell-Cafe

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-21 Thread Bob Hutchison
, Bob___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] type-level integers, type-level operators, and most specific overlapping instance

2013-09-21 Thread TP
In an equation for `a': a = s * s In the expression: do { let s = ...; let a = s * s; print a } Thanks in advance, TP ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo

Re: [Haskell-cafe] type-level integers, type-level operators, and most specific overlapping instance

2013-09-21 Thread adam vogt
In the expression: s * s In an equation for `a': a = s * s In the expression: do { let s = ...; let a = s * s; print a } Thanks in advance, TP ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-21 Thread Stijn van Drongelen
(in)equalities. Really, in (a + b) * c = a * c + b * c, it isn't + or * that's causing problems, but =. I'm going to look at Kmett's work and that ltu link when I'm home ;) ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-21 Thread Stuart A. Kurtz
(which are common to all programming languages) and the mathematical real numbers. This imprecision is manifest in failures of the intended homomorphism from the reals to the floating point types. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org

Re: [Haskell-cafe] type-level integers, type-level operators, and most specific overlapping instance

2013-09-21 Thread TP
t * s = Mult s t main = do let s = Tensor :: Scalar let a = s*s print a ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-21 Thread Bardur Arantsson
) formula. Not sure how useful they would be in practice, though :). ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-21 Thread Brandon Allbery
sine nomine associates allber...@gmail.com ballb...@sinenomine.net unix, openafs, kerberos, infrastructure, xmonadhttp://sinenomine.net ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-21 Thread David Thomas
, kerberos, infrastructure, xmonad http://sinenomine.net ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe ___ Haskell-Cafe mailing list Haskell

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-21 Thread Brandon Allbery
ballb...@sinenomine.net unix, openafs, kerberos, infrastructure, xmonadhttp://sinenomine.net ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-21 Thread David Thomas
such trick. -- brandon s allbery kf8nh sine nomine associates allber...@gmail.com ballb...@sinenomine.net unix, openafs, kerberos, infrastructure, xmonad http://sinenomine.net ___ Haskell-Cafe mailing list Haskell

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-21 Thread Mike Meyer
are broken until you start comparing values. Eq and Ord are just the messengers. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-21 Thread Bardur Arantsson
. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-21 Thread Mike Meyer
expectations, we might as well take it out of the numeric stack (or the language) completely. mike ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] Strange exit status behavior from the process package

2013-09-21 Thread Michael Xavier
, should be Just (ExitFailure 143) term1: sleep 100 term2: pkill sleep term1: echo $? # 143 Anyone know what might be going on? -- Michael Xavier http://www.michaelxavier.net ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-21 Thread Carter Schonwald
expectations, we might as well take it out of the numeric stack (or the language) completely. mike ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] Creating a local Hoogle ...

2013-09-21 Thread aditya siram
is appreciated. Thanks! -deech ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Strange exit status behavior from the process package

2013-09-21 Thread Brandon Allbery
___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] Mystery of an Eq instance

2013-09-20 Thread damodar kulkarni
___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-20 Thread Scott Lawrence
Lawrence ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] Which builder to choose?

2013-09-20 Thread Alejandro Serrano Mena
Hi, I'm looking at the packages blaze-builder and bytestring, and both provide builders for ByteString. Which one should I use? In which situations is one more convenient than the other? Thanks for the help. ___ Haskell-Cafe mailing list Haskell-Cafe

Re: [Haskell-cafe] Which builder to choose?

2013-09-20 Thread Duncan Coutts
functionality such as for html encoding. I *think* (but not 100% sure) that Simon's plan is to make blaze-builder re-export the bytestring builder and just add the few extra functions on top. Duncan (bytestring co-maintainer) ___ Haskell-Cafe mailing

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-20 Thread Albert Y. C. Lai
. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-20 Thread Brandon Allbery
).) -- brandon s allbery kf8nh sine nomine associates allber...@gmail.com ballb...@sinenomine.net unix, openafs, kerberos, infrastructure, xmonadhttp://sinenomine.net ___ Haskell-Cafe mailing

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-20 Thread Tom Ellis
the golden standard for floating point math, defines these precision rules. Ah, this is definitely the best advice in the thread. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-20 Thread Mike Meyer
the approach taken by ghc is arguably a good one. mike ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-20 Thread damodar kulkarni
? (I am using GHC 6.12.1) If there are references on this please share. Thanks and regards, -Damodar Kulkarni -- Scott Lawrence ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-20 Thread Stijn van Drongelen
floating point numbers. Is the Eq instance there just to make __the floating point types__ members of the Num class? That was also a reason before GHC 7.4 (Eq is no longer a superclass of Num). ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-20 Thread Tom Ellis
3.1622776601683795 == 3.1622776601683797 True Prelude 3.1622776601683795 == 3.1622776601683798 False The truncation happens base 2, not base 10. Is that what's confusing you? Tom ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org

Re: [Haskell-cafe] PSA: do not install xcode 5 if you are using ghc 7.6

2013-09-20 Thread Adam Foltzer
will be in RC status at the very least. Can this be backported to the 7.6.3 tag and released as 7.6.4? It would be nice to not have to choose between running the latest xcode and the ability to test multiple GHC versions. Cheers, Adam ___ Haskell-Cafe

Re: [Haskell-cafe] PSA: do not install xcode 5 if you are using ghc 7.6

2013-09-20 Thread Carter Schonwald
GHC versions. Cheers, Adam ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] Music update

2013-09-20 Thread Mark Lentczner
release! ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] Demarcating monad transformers.

2013-09-20 Thread Nickolay Kudasov
[1] https://github.com/fizruk/demarcatehttps://github.com/fizruk/demarcate ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-20 Thread damodar kulkarni
(Eq is no longer a superclass of Num). ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Mystery of an Eq instance

2013-09-20 Thread Mike Meyer
have a hole around 0. They still don't work right. mike ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] ANN: tf-random 0.1 (splittable pseudorandom number generator)

2013-09-19 Thread Michał Pałka
regards, Michał PS. Please copy me when replying as I am not on the list. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] Fwd: Functional Programming in Bioinformatics, Birds-of-a-Feather Session at CUFP

2013-09-19 Thread Ashish Agarwal
/sessions/2013/birds-feather-functional-programming-bioinformatic Organizers: Ashish Agarwal, Jeff Hammerbacher ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] cabal: internal error when reading package index

2013-09-18 Thread Henk-Jan van Tuyl
computer and get us closer sooner. Watch the video. http://folding.stanford.edu/ http://Van.Tuyl.eu/ http://members.chello.nl/hjgtuyl/tourdemonad.html Haskell programming -- ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org

Re: [Haskell-cafe] cabal: internal error when reading package index

2013-09-18 Thread Ivan Lazar Miljenovic
://members.chello.nl/hjgtuyl/tourdemonad.html Haskell programming -- ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Ivan Lazar Miljenovic ivan.miljeno...@gmail.com http

[Haskell-cafe] Multi-param typeclass vs locally constrained typeclass methods

2013-09-18 Thread Jacques Carette
an example, and is not meaningful to the question]. The best answer would contain a design guideline for typeclasses, which would spell out conditions in which to use each variant. Jacques ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http

Re: [Haskell-cafe] Multi-param typeclass vs locally constrained typeclass methods

2013-09-18 Thread Roman Cheplyaka
the Foo interface. So they are quite different. Roman signature.asc Description: Digital signature ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

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