Re: [Haskell-cafe] Comments requested: succ Java

> "Michael" == Michael Snoyman writes: Michael> not be written in pure Haskell, but then again I'm not Michael> sure if there are any fully W3 compliant browsers *not* Michael> written in C++. I'm not sure if there are any fully W3 compliant browsers. How could there be? It would

Re: [Haskell-cafe] How to decide if a number is an integer?

The original code is givenSum num = map (\a -> let l = (sqrt $ fromIntegral (a * a + 2 + 2 * num)) - (fromIntegral a) in case properFraction l of (_, 0) -> True _ ->

Re: [Haskell-cafe] How to decide if a number is an integer?

$ ghci Prelude> let isInteger' l = case properFraction l of { (_,0) -> 1; _ -> 0 } Prelude> isInteger' 2.0 1 Prelude> isInteger' 1.9 0 Do you really get 1? For what input types/values? Although I would write: isInteger = (== 0) . snd . properFraction > It never matches to (_, 0.0) > I mean >

Re: [Haskell-cafe] How to decide if a number is an integer?

On Mon, Sep 28, 2009 at 11:35 PM, Magicloud Magiclouds wrote: > It never matches to (_, 0.0) > I mean > case properFraction l of > (_, 0) -> l > _ -> 0 -- always goes here. Odd, it works fine for me. f x = case properFraction x of (_,0) -> True _

Re: [Haskell-cafe] Comments requested: succ Java

On Mon, Sep 28, 2009 at 4:13 PM, John A. De Goes wrote: > > If you have counterexamples, then perhaps you can name them. I'm looking > for Java shops with 5+ developers and code bases of > 100k converting over > to Haskell. I don't know _any such shop_ that has switched to Haskell, and I > doubt

Re: [Haskell-cafe] How to decide if a number is an integer?

It never matches to (_, 0.0) I mean case properFraction l of (_, 0) -> l _ -> 0 -- always goes here. On Tue, Sep 29, 2009 at 2:18 PM, Jimmy Hartzell wrote: > Use properFraction: > http://haskell.org/ghc/docs/latest/html/libraries/base/Prelude.html#v%3AproperFraction > >> Hi, >>   In other

Re: [Haskell-cafe] How to decide if a number is an integer?

Use properFraction: http://haskell.org/ghc/docs/latest/html/libraries/base/Prelude.html#v%3AproperFraction > Hi, > In other weak-type language, `round i == i` would work. But in > haskell, what should I do? Thanks. > -- > 竹密岂妨流水过 > 山高哪阻野云飞 > __

Re: [Haskell-cafe] Re: How to decide if a number is an integer?

Magicloud, There are numerous ways to construct such a function. Hoogling "(Fractional a, Integral b) => a -> b" brings up a host of functions that would be of use here in combination with fromIntegral. Thomas On Mon, Sep 28, 2009 at 11:11 PM, Magicloud Magiclouds wrote: > Hi, > Here is an ex

[Haskell-cafe] Re: How to decide if a number is an integer?

Hi, Here is an example: let l = fun num in if isIntegral l then l else 0 How to do the isIntegral thing? On Tue, Sep 29, 2009 at 1:58 PM, Magicloud Magiclouds wrote: > Hi, >  In other weak-type language, `round i == i` would work. But in > haskell, what should I do? Thanks. > -- >

[Haskell-cafe] How to decide if a number is an integer?

Hi, In other weak-type language, `round i == i` would work. But in haskell, what should I do? Thanks. -- 竹密岂妨流水过 山高哪阻野云飞 ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Cal, Clojure, Groovy, Haskell, OCaml, etc.

If there's an Example section, it might actually be a good idea to include it on the package's hackage page, too. From a usability point of view, CPAN is much more helpful than the relatively spartan hackage description - if you're looking for a particular set of functionality, being able to

Re: [Haskell-cafe] Comments requested: succ Java

Curt Sampson wrote: I've been hearing that having lots of libraries is an insurmountable advantage, and you're doomed if you give them up, since long before I took up Haskell. It's mostly myth promulgated by people driven by fear. I'm sure it's the case in some shops that they have lots of people

Re: [Haskell-cafe] Re: combinatorial search with running bound

Hi Chung-chieh, When you ask for a pair of boxes, "How closely can they be brought together without intersection?" that provides a lower bound on the question "How closely can the groups be brought together?" (I.e. for that pair of boxes, bring them any closer and they intersect, so it is a lo

Re: [Haskell-cafe] Debugging Haskell code

On 2009-09-28 22:53 -0400 (Mon), John D. Ramsdell wrote: > I've had great success debugging a large program by loading the Main > module into ghci after setting GHC extensions, changing the search > path, and setting break on errors. If you then place calls to the > error function at the right lo

[Haskell-cafe] Re: combinatorial search with running bound

Michael Mossey wrote in article <3942.75.50.175.130.1253997756.squir...@mail.alumni.caltech.edu> in gmane.comp.lang.haskell.cafe: > The problem is to determine how closely the groups can be brought together > without any boxes intersection. > > The basic algorithm is to consider each pair of bo

Re: [Haskell-cafe] Cal, Clojure, Groovy, Haskell, OCaml, etc.

brad.larsen: > On Mon, Sep 28, 2009 at 11:11 PM, Hong Yang wrote: > [...] > > Maybe later on we can add an Example section to Description, Synopsis, and > > Documentation sections produced by Haddock. > > > > Also, having a section for comments is helpful. This is the case especially > > when ther

Re: [Haskell-cafe] Cal, Clojure, Groovy, Haskell, OCaml, etc.

On Mon, Sep 28, 2009 at 11:11 PM, Hong Yang wrote: [...] > Maybe later on we can add an Example section to Description, Synopsis, and > Documentation sections produced by Haddock. > > Also, having a section for comments is helpful. This is the case especially > when there are several similar packa

Re: [Haskell-cafe] Cal, Clojure, Groovy, Haskell, OCaml, etc.

A Cook Book is good but relies on people specifically working on it. I think most of the package authors submit their packages because they themselves need the modules in his real world. I think package authors adding examples in the Descriptions section is a good start when they submit their pack

Re: [Haskell-cafe] Cal, Clojure, Groovy, Haskell, OCaml, etc.

On Mon, 28 Sep 2009 21:50:14 -0500, you wrote: >Good libraries are not enough for a language to go beyond mere existence. >There must exist good documents, i.e., good tutorials, good books, and good >explanations and examples in the libraries, etc, that are easy for people to >learn and use. In my

Re: [Haskell-cafe] Debugging Haskell code

On Sun, Sep 27, 2009 at 3:50 PM, Paul Moore wrote: > The problem is that I have *no idea* how to begin debugging this. I've had great success debugging a large program by loading the Main module into ghci after setting GHC extensions, changing the search path, and setting break on errors. If yo

Re: [Haskell-cafe] Cal, Clojure, Groovy, Haskell, OCaml, etc.

On Mon, 28 Sep 2009 21:50:14 -0500, you wrote: >Good libraries are not enough for a language to go beyond mere existence. >There must exist good documents, i.e., good tutorials, good books, and good >explanations and examples in the libraries, etc, that are easy for people to >learn and use. In my

Re: [Haskell-cafe] Cal, Clojure, Groovy, Haskell, OCaml, etc.

Good libraries are not enough for a language to go beyond mere existence. There must exist good documents, i.e., good tutorials, good books, and good explanations and examples in the libraries, etc, that are easy for people to learn and use. In my humble opinion, Haskell has a lot of libraries, but

Re: [Haskell-cafe] Cal, Clojure, Groovy, Haskell, OCaml, etc.

On Tue, 29 Sep 2009 12:25:30 +1000, you wrote: >I think one must distinguish what it means for a language to "exist" and >"be practical." Counter-example: Java fails catastrophically at all >three and it most certainly exists; boy do I know it. QOTM! > >Casey Hawthorne wrote: >> I think a langua

Re: [Haskell-cafe] Cal, Clojure, Groovy, Haskell, OCaml, etc.

I think one must distinguish what it means for a language to "exist" and "be practical." Counter-example: Java fails catastrophically at all three and it most certainly exists; boy do I know it. Casey Hawthorne wrote: > I think a language needs the following to exist: > > - a community > > - good

[Haskell-cafe] Cal, Clojure, Groovy, Haskell, OCaml, etc.

I think a language needs the following to exist: - a community - good library - a package manager Thoughts? -- Regards, Casey ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Doing people's homework?

If you do a student's homework, you are cheating that student out of an education. He/She may realize that t late in the future. -- Regards, Casey ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-

[Haskell-cafe] Re: Doing people's homework?

> I'm not really hip to the culture here so this is just an > observation, but some of the recent questions posted to this > list (and beginn...@haskell.org) look a lot like someone's > homework. Well, if homework "looks like" homework, the teacher is guilty of cheating. Best, Maurício

Re: [Haskell-cafe] Doing people's homework?

Am Dienstag 29 September 2009 01:40:02 schrieb Michael P Mossey: > I'm not really hip to the culture here so this is just an observation, but > some of the recent questions posted to this list (and > beginn...@haskell.org) look a lot like someone's homework. Is anyone here > concerned about avoidin

Re: [Haskell-cafe] Doing people's homework?

> I think the consensus is "Help, not do" when it comes to homework (esp. on > -beginners). At least, thats what I try to do. I've always got the sense > that that is what the community expects. Yep, there's a whole policy on this. http://www.haskell.org/haskellwiki/Homework_help TomMD __

Re: [Haskell-cafe] Doing people's homework?

I think the consensus is "Help, not do" when it comes to homework (esp. on -beginners). At least, thats what I try to do. I've always got the sense that that is what the community expects. On Sep 28, 2009, at 7:40 PM, Michael P Mossey wrote: I'm not really hip to the culture here so this i

Re: [Haskell-cafe] Comments requested: succ Java

On 29/09/2009, at 1:59 AM, Peter Verswyvelen wrote: That's a really shame. Any idea why? On Mon, Sep 28, 2009 at 3:02 PM, John A. De Goes wrote: CAL is interesting, but unfortunately dead, and has no community. I think Haskell users would miss too many of the post 98 extensions -- ove

[Haskell-cafe] Doing people's homework?

I'm not really hip to the culture here so this is just an observation, but some of the recent questions posted to this list (and beginn...@haskell.org) look a lot like someone's homework. Is anyone here concerned about avoiding giving the full answer, or maybe it's really none of our business (w

Re: [Haskell-cafe] river crossing puzzle

pat browne wrote: Hi, Does anyone know where there are any Haskell implementations of the the River Crossing puzzle (AKA Farmer/Fox/Goose/Grain). I wrote some code to generate a map of some version of the game: https://code.goto10.org/svn/maximus/2009/boatman/BoatMan.hs ghc -O2 --make BoatMa

Re: [Haskell-cafe] unicode text libraries

Hi Bryan and others, On Mon, Sep 28, 2009 at 5:29 PM, Bryan O'Sullivan wrote: > bytestring predates the other two libraries by several years. The underlying > stream type for uvector and text are almost the same, so they could in > principle be merged. There's a fair amount of duplication there,

Re: [Haskell-cafe] Re: QuickCheck Questions

On Mon, Sep 28, 2009 at 3:28 PM, Andrew Coppin wrote: > Ben Franksen wrote: >> >> If it turns out that a >> precise spec is unwieldy (too complex) then this is a hint that maybe it >> is >> not a good abstraction. > > Or your specification language is insufficient to describe it... > > (I don't kn

Re: [Haskell-cafe] unicode text libraries

On Mon, Sep 28, 2009 at 3:00 PM, Alexander Dunlap < alexander.dun...@gmail.com> wrote: > I just have a question out of curiosity - why was the decision made to > have Data.Text, uvector, and ByteString all separate data structures, > rather than defining the string types in terms of uvector? > b

Re: [Haskell-cafe] unicode text libraries

On Mon, Sep 28, 2009 at 9:15 AM, Don Stewart wrote: > tittoassini: >> 2009/9/28 Don Stewart : >> > titto: >> >> Hi, >> >> >> >> I am looking for an unicode strings  library, I found on hackage: >> >> >> >> http://hackage.haskell.org/package/compact-string >> >> >> >> http://hackage.haskell.org/pac

Re: [Haskell-cafe] GADT pattern match in non-rigid context

On Sep 28, 2009, at 17:56 , João Paulo wrote: GADT pattern match in non-rigid context for `LeftCons' Solution: add a type signature In the pattern: LeftCons l' h_down[marked with # in the code] The suggestion is quite clear :D (in fact, I think this compiler suggest

[Haskell-cafe] GADT pattern match in non-rigid context

Dear all, The following is a (I'm afraid too large!) fragment of a program implementing a GADT-based generic zipper: ** data Zipper path where Zipper :: hole -> Context (Up (left, hole, right) up) -> Zipper (Up (left, hole, right) up) data

Re: [Haskell-cafe] 16 bit floating point data in Haskell?

On Sun, 27 Sep 2009, Olex P wrote: Hi guys, Do we have anything like half precision floats in Haskell? Maybe in some non standard libraries? Or I have to use FFI + OpenEXR library to achieve this? If you only want to save storage, you may define newtype Float16 = Float16 Int16 and write N

[Haskell-cafe] Writing tool question (may be out of scope here)

Hi, Excuse me if that is out of subject here, but does anyone know which tool/writing framework was used to write the "Real world Haskell" book ? I'm wondering, in particular, about the capability to write/edit/publish it online while allowing people to leave comments, then have a paperback/PDF ve

Re: [Haskell-cafe] Re: QuickCheck Questions

Ben Franksen wrote: If it turns out that a precise spec is unwieldy (too complex) then this is a hint that maybe it is not a good abstraction. Or your specification language is insufficient to describe it... (I don't know about anybody else, but I find that when I use QC, about 75% of the bug

Re: [Haskell-cafe] combinatorial search with running bound

On Sat, 26 Sep 2009, Michael Mossey wrote: I have a combinatorial search problem that requires a running lower bound to be tracked in order to prune the search. I have enough Haskell experience to know how to do a combinatorial search, for example with list compresions or the list monad, but I

[Haskell-cafe] Re: QuickCheck Questions

Yusaku Hashimoto wrote: > So what I want to know is "how to find good properties." Please let me > know how do you find QuickCheck properties. There are so many > tutorials or papers for using QuickCheck, but when I try to apply them > to my programming, I often miss properties in my codes. Dijkst

Re: [Haskell-cafe] Hackage bug? Autobuild failure on literate source with ignored code blocks.

In that case, I'll update my code and the wiki to use an alternative code style. On Mon, Sep 28, 2009 at 09:21, Duncan Coutts wrote: > Your local Cabal version is older than the one Hackage is using and that > older version lets haddock (ie ghc) do the pre-processing where as in > the current ver

Re: [Haskell-cafe] QuickCheck Questions

Pasqualino "Titto" Assini skrev: Fantastic. If I understand correctly it inductively derives equations that hold for a set of examples. AFAIU, it enumerates a set of terms and uses random testing to approximate an equivalence relation for these. The real trick, apparently, is in filtering ou

[Haskell-cafe] river crossing puzzle

Hi, Does anyone know where there are any Haskell implementations of the the River Crossing puzzle (AKA Farmer/Fox/Goose/Grain). There are several variations but the general ideas are explained at: http://en.wikipedia.org/wiki/River_crossing_puzzle http://en.wikipedia.org/wiki/Fox,_goose_and_bag_of

Re: [Haskell-cafe] Hackage bug? Autobuild failure on literate source with ignored code blocks.

On Sep 28, 2009, at 12:21 , Duncan Coutts wrote: On Sun, 2009-09-27 at 21:06 +0100, John Millikin wrote: According to , the following should compile properly because the second block of code will be ignored by GHC: \begin{code} main =

Re: [Haskell-cafe] unicode text libraries

On Mon, 2009-09-28 at 18:32 +0200, Johan Tibell wrote: > On Mon, Sep 28, 2009 at 6:15 PM, Don Stewart wrote: > > tittoassini: > >> 2009/9/28 Don Stewart : > >> > titto: > >> >> Hi, > >> >> > >> >> I am looking for an unicode strings library, I found on hackage: > >> >> > >> >> http://hackage.hask

Re: [Haskell-cafe] Comments requested: succ Java

I think they made a mistake choosing a syntax so close to Haskell: 1. It's close enough to Haskell to attract Haskellers; 2. It's far enough away from Haskell to push Haskellers away; 3. It's not the language one would design if one were prioritizing easy interop with Java in

Re: [Haskell-cafe] Comments requested: succ Java

2009/09/28 John A. De Goes : > Libraries are _everything_... Not exactly. Python would never have gotten a foothold over Perl, nor Java over C, if cleaner language semantics weren't enough for some shops or certain applications. -- Jason Dusek ___

Re: [Haskell-cafe] Comments requested: succ Java

Ok, my last post on this for real this time. On 2009-09-28 08:13 -0600 (Mon), John A. De Goes wrote: > Let me ask you this question: how long would it take you to get an > HTML/CSS, W3 compliant browser in Haskell? A long time. On the other hand, by grabbing a copy of Mozilla, I'll have one fa

Re: [Haskell-cafe] QuickCheck Questions

Fantastic. If I understand correctly it inductively derives equations that hold for a set of examples. I am looking forward to see it in Haskell, who is working on the port? titto 2009/9/28 Emil Axelsson : > Not sure this is what you want, but I thought I'd mention "Formal > Specifications

Re: [Haskell-cafe] unicode text libraries

On Mon, 2009-09-28 at 14:16 +0100, Titto Assini wrote: > Hi, > > I am looking for an unicode strings library, I found on hackage: > > http://hackage.haskell.org/package/compact-string > > http://hackage.haskell.org/package/text > > They both look solid and functionally complete so ... I don't

Re: [Haskell-cafe] QuickCheck Questions

On Mon, 2009-09-28 at 23:59 +0900, Yusaku Hashimoto wrote: > After a few more investigations, I can say > > QuickCheck does: > - make easy to finding couter-cases and refactoring codes > - make easy to test some functions if they have good mathematical properties > - generate random test cases >

Re: [Haskell-cafe] Hackage bug? Autobuild failure on literate source with ignored code blocks.

On Sun, 2009-09-27 at 21:06 +0100, John Millikin wrote: > According to , > the following should compile properly because the second block of code > will be ignored by GHC: > > \begin{code} > main = putStrLn "Hello world!" > \end{code} > > \

Re: [Haskell-cafe] unicode text libraries

On Mon, Sep 28, 2009 at 6:15 PM, Don Stewart wrote: > tittoassini: >> 2009/9/28 Don Stewart : >> > titto: >> >> Hi, >> >> >> >> I am looking for an unicode strings  library, I found on hackage: >> >> >> >> http://hackage.haskell.org/package/compact-string >> >> >> >> http://hackage.haskell.org/pac

Re: [Haskell-cafe] unicode text libraries

tittoassini: > 2009/9/28 Don Stewart : > > titto: > >> Hi, > >> > >> I am looking for an unicode strings  library, I found on hackage: > >> > >> http://hackage.haskell.org/package/compact-string > >> > >> http://hackage.haskell.org/package/text > >> > >> They both look solid and functionally comple

Re: [Haskell-cafe] Comments requested: succ Java

That's a really shame. Any idea why? On Mon, Sep 28, 2009 at 3:02 PM, John A. De Goes wrote: > > CAL is interesting, but unfortunately dead, and has no community. > > Regards, > > John A. De Goes > N-Brain, Inc. > The Evolution of Collaboration > > http://www.n-brain.net|877-376-2724 x 10

Re: [Haskell-cafe] unicode text libraries

titto: > Hi, > > I am looking for an unicode strings library, I found on hackage: > > http://hackage.haskell.org/package/compact-string > > http://hackage.haskell.org/package/text > > They both look solid and functionally complete so ... I don't know which > one to use :-) > > As I am sure I

Re: [Haskell-cafe] Fwd: frag game-compiling error

Lyndon Maydwell wrote: > >> src/Quaternion.hs:22:27 > > This would probably be the place to start. > Ok,I managed to get past the error like this: newMatrix ColumnMajor [realToFrac r00,realToFrac r01,realToFrac r02,realToFrac r03, realToFrac r10,realToFrac r11,real

Re: [Haskell-cafe] QuickCheck Questions

Not sure this is what you want, but I thought I'd mention "Formal Specifications for Free": http://www.erlang.org/euc/08/1005Hughes2.pdf (I wasn't able to find a better link. That talk is for Erlang, but people are working on this for Haskell QuickCheck.) / Emil Yusaku Hashimoto skrev:

Re: [Haskell-cafe] QuickCheck Questions

On Mon, Sep 28, 2009 at 10:59 AM, Yusaku Hashimoto wrote: After a few more investigations, I can say QuickCheck does: - make easy to finding couter-cases and refactoring codes - make easy to test some functions if they have good mathematical properties - generate random test cases But QuickChe

Re[2]: [Haskell-cafe] Comments requested: succ Java

Hello Edward, Monday, September 28, 2009, 6:26:12 PM, you wrote: >> If you have counterexamples, then perhaps you can name them. I'm looking >> for Java shops with 5+ developers and code bases of > 100k converting >> over to Haskell. I don't know _any such shop_ that has switched to >> Haskell, a

Re: [Haskell-cafe] QuickCheck Questions

After a few more investigations, I can say QuickCheck does: - make easy to finding couter-cases and refactoring codes - make easy to test some functions if they have good mathematical properties - generate random test cases But QuickCheck does *not*: - help us to find good properties So what I w

RE: [Haskell-cafe] Comments requested: succ Java

> From: haskell-cafe-boun...@haskell.org > [mailto:haskell-cafe-boun...@haskell.org] On Behalf Of Edward > Middleton > > > > If you have counterexamples, then perhaps you can name > them. I'm looking > > for Java shops with 5+ developers and code bases of > 100k > converting > > over to Haskel

Re: [Haskell-cafe] Comments requested: succ Java

John A. De Goes wrote: > > If you have counterexamples, then perhaps you can name them. I'm looking > for Java shops with 5+ developers and code bases of > 100k converting > over to Haskell. I don't know _any such shop_ that has switched to > Haskell, and I doubt any exist, but I'd be delighted to

[Haskell-cafe] Re: ANN: ListTree 0.1

Hi, I haven't seen that paper. I certainly agree with their point that Haskell easily allows to separate the code of the search and pruning algorithms from the code of the search-space etc. It seems that my package and their paper focus on different algorithms. They mostly focus on pruning method

Re: [Haskell-cafe] Comments requested: succ Java

If you have counterexamples, then perhaps you can name them. I'm looking for Java shops with 5+ developers and code bases of > 100k converting over to Haskell. I don't know _any such shop_ that has switched to Haskell, and I doubt any exist, but I'd be delighted to learn I'm wrong. Let

Re: [Haskell-cafe] Comments requested: succ Java

On 2009-09-28 07:01 -0600 (Mon), John A. De Goes wrote: > And I stand by my statement that no Java shop is going to switch over > to Haskell I have counterexamples. So "pt!" > ...or the _billions of dollars_ worth of commercial- > friendly open source libraries available for the Java pl

Re: [Haskell-cafe] Market Place for Haskell development teams?

It's very difficult to find information on: 1. How many Haskell developers are out there; 2. What a typical salary is for a Haskell developer; 3. Whether or not the skills of a typical Haskell developer scale to large applications (most Haskell developers are "hobby" Haskellers and have only

[Haskell-cafe] unicode text libraries

Hi, I am looking for an unicode strings library, I found on hackage: http://hackage.haskell.org/package/compact-string http://hackage.haskell.org/package/text They both look solid and functionally complete so ... I don't know which one to use :-) As I am sure I am not the first one facing thi

Re: [Haskell-cafe] Comments requested: succ Java

CAL is interesting, but unfortunately dead, and has no community. Regards, John A. De Goes N-Brain, Inc. The Evolution of Collaboration http://www.n-brain.net|877-376-2724 x 101 On Sep 27, 2009, at 3:38 PM, Peter Verswyvelen wrote: That's not really true. Just use CAL from the Open Q

Re: [Haskell-cafe] Comments requested: succ Java

Interop between Haskell and Java is too difficult to be practical. And I stand by my statement that no Java shop is going to switch over to Haskell, precisely because they cannot afford to abandon either their existing investment, or the _billions of dollars_ worth of commercial- friendly

[Haskell-cafe] Market Place for Haskell development teams?

In the last months, I made the experience it seems difficult to find commercial Haskell developer teams to take responsibility for projects in the range of $ 10.000 - 100.000. The Industrial Haskell Group does not seem to be the appropriate place for this, while harvesting Haskell team at gener

Re: Fwd: [Haskell-cafe] frag game-compiling error

> src/Quaternion.hs:22:27 This would probably be the place to start. On Mon, Sep 28, 2009 at 7:28 PM, Felipe Lessa wrote: > On Mon, Sep 28, 2009 at 01:57:03PM +0300, selahaddin gerdan wrote: >> Sorry I'm just learning haskell, so I don't get your suggestion. Could you >> explain to me what exact

Re: [Haskell-cafe] Re: ANN: CmdArgs - easy command line argument processing

2009/9/28 Ben Franksen : > To expose an impure function (!) in an API, I don't know... I mean, couldn't > one just wrap the value like this > >  data Attributed a -- opaque > >  (&=) :: a -> Attrib -> Attributed a > >  mode :: Data a => Attributed a -> Mode a > > and thus retain a purely functional

Re: [Haskell-cafe] 80 bit floating point data in Haskell?

On Mon, Sep 28, 2009 at 5:52 AM, Andrew Coppin wrote: > wren ng thornton wrote: >> >> Andrew Coppin wrote: >>> >>> While we're on the subject... I understand that certain FPUs support >>> 80-bit precision. Is there any way to get at that? Or is this going to >>> require FFI too? >> >> Perhaps you

Re: Fwd: [Haskell-cafe] frag game-compiling error

On Mon, Sep 28, 2009 at 01:57:03PM +0300, selahaddin gerdan wrote: > Sorry I'm just learning haskell, so I don't get your suggestion. Could you > explain to me what exactly I have to do? > > According to > this

Fwd: [Haskell-cafe] frag game-compiling error

-- Forwarded message -- From: selahaddin gerdan Date: 2009/9/28 Subject: Re: [Haskell-cafe] frag game-compiling error To: Lyndon Maydwell Sorry I'm just learning haskell, so I don't get your suggestion. Could you explain to me what exactly I have to do? According to this

Re: [Haskell-cafe] 80 bit floating point data in Haskell?

wren ng thornton wrote: Andrew Coppin wrote: While we're on the subject... I understand that certain FPUs support 80-bit precision. Is there any way to get at that? Or is this going to require FFI too? Perhaps you want Foreign.C.Types.CLDouble ? http://hackage.haskell.org/packages/archive/ba

Re: [Haskell-cafe] A proposals

Bulat Ziganshin wrote: in case you not seen this and may be interested: http://okmij.org/ftp/Haskell/types.html#partial-sigs Yes, I know there are workarounds (and I use them sometimes). It'd be nice if there was direct support for them. :-) Thanks, Martijn. ___

[Haskell-cafe] ANN: JSONb-0.0.2

JSONb is a ByteString parser for JSON, yielding a simple JSON type composed of Rationals, ByteString tries and strict ByteStrings. http://hackage.haskell.org/package/json-b-0.0.2 An example application program, `json-schema`, is provided. It derives schema for JSON input. When first

Re[2]: [Haskell-cafe] A proposals

Hello Martijn, Monday, September 28, 2009, 1:42:10 PM, you wrote: >> Another nice >> thing this suggests is the ability to use underscore as a pattern for >> when you know the compiler will infer the type but it's too complex to >> want to write out (e.g. while experimenting). in case you not

RE: [Haskell-cafe] A proposals

Martijn van Steenbergen wrote: > wren ng thornton wrote: >> Another nice >> thing this suggests is the ability to use underscore as a pattern for >> when you know the compiler will infer the type but it's too complex >> to want to write out (e.g. while experimenting). > > I'd love this! F# has th

Re: [Haskell-cafe] A proposals

wren ng thornton wrote: Another nice thing this suggests is the ability to use underscore as a pattern for when you know the compiler will infer the type but it's too complex to want to write out (e.g. while experimenting). I'd love this! M. ___ H

Re: [Haskell-cafe] 80 bit floating point data in Haskell?

Ross Mellgren wrote: What about the built-in Float type? Prelude Foreign.Storable> sizeOf (undefined :: Float) 4 Prelude Foreign.Storable> sizeOf (undefined :: Double) 8 While we're on the subject... I understand that certain FPUs support 80-bit precision. Is there any way to get at that? Or

Re: [Haskell-cafe] Comments requested: succ Java

On 2009-09-28 11:13 +0400 (Mon), Bulat Ziganshin wrote: > > http://www.starling-software.com/en/blog/drafts/2009/09/27.succ-java-summary.html > > what are the types of balance and interest in balance * interest > expression? ;) I dunno, but I think it's not really relevant to the point of the ex

Re: [Haskell-cafe] Comments requested: succ Java

Hello Curt, Sunday, September 27, 2009, 8:16:53 PM, you wrote: > http://www.starling-software.com/en/blog/drafts/2009/09/27.succ-java-summary.html what are the types of balance and interest in balance * interest expression? ;) -- Best regards, Bulatmailto:bulat.z

Re: [Haskell-cafe] 16 bit floating point data in Haskell?

2009/9/28 Casey Hawthorne : > On Mon, 28 Sep 2009 12:06:47 +1300, you wrote: > >> >>On Sep 28, 2009, at 9:40 AM, Olex P wrote: >> >>> Hi, >>> >>> Yes, I mean "sizeOf 2". It's useful not only on GPUs but also in >>> "normal" software. Think of huge data sets in computer graphics >>> (particle clouds