On Thu, May 3, 2012 at 2:52 AM, Andrew Seniuk ras...@gmail.com wrote:
Note that the Annotated version of the HSE parser/AST will probably
not provide enough
generality for the sorts of attributes you want to store (it's for
source locations, unless something changed in the most recent
Hi,
GLfloat haskell is instance of several number related typeclasses. A
function like 'fromRational' could be used to create a GLfloat from another
number that has a random instance.
L
On May 3, 2012 4:39 AM, Mark Spezzano mark.spezz...@chariot.net.au
wrote:
Hi,
I tried this but now I get
For the French translation, I dropped the humor altogether. It just doesn't
feel right to translate a reference to a meme. Plus the English phrasing is
quite impossible to express... it would have been really dumb had I tried
to stick to it.
So I opted for a close translation, but sadly,
Hello,
I think the Japanese title is in a similar spirit as the original one.
Breaking it down:
Sugoi Haskell tanoshiku manabou!
sugoi - awesome (rather colloquial)
tanoshiku - while having fun
manabou - let's learn
Yes, exactly.
Sugoi is a frank word which we cannot use in thesis.
Hi, I'm writing a program like this:
data B = B Int
data A = Safe Int | Unsafe Int
createB :: A - B
createB (Safe i) = B i
createB (Unsafe i) = error This is not allowed
Unfortunately, the situation when createB is called with an Unsafe value is
only checked at runtime.
If I omit the second
Nope - because at compile time, there's no way to know whether
createB's argument is a Safe or an Unsafe. That information only
exists at run time. Consider the following functions.
f :: Int - A
f x = if x 0 then Unsafe x else Safe x
g :: IO B
g = do x - getLine
return $ createB $ f
On Thu, May 3, 2012 at 5:36 PM, Ismael Figueroa Palet
ifiguer...@gmail.comwrote:
Hi, I'm writing a program like this:
data B = B Int
data A = Safe Int | Unsafe Int
createB :: A - B
createB (Safe i) = B i
createB (Unsafe i) = error This is not allowed
Unfortunately, the situation when
Is there a way to make it a compile time error??
http://en.wikibooks.org/wiki/Haskell/GADT
It may pay off talking about your specific use case.
Marc Weber
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Dear list,
I build haskell-platform 2011.04 by gentoo ~amd64 haskell overlay. But
I can't run ghci even I rebuilt ghc or run haskell-updater, error
message:
ghci
GHCi, version 7.4.1: http://www.haskell.org/ghc/ :? for help
Loading package ghc-prim ... linking ... done.
Loading package
Am 03.05.2012 18:29, schrieb Baojun Wang:
Dear list,
I build haskell-platform 2011.04 by gentoo ~amd64 haskell overlay. But
I can't run ghci even I rebuilt ghc or run haskell-updater, error
message:
ghci
GHCi, version 7.4.1: http://www.haskell.org/ghc/ :? for help
Loading package
On Fri, May 4, 2012 at 12:35 AM, Morel Pisum morel.pi...@googlemail.com wrote:
Am 03.05.2012 18:29, schrieb Baojun Wang:
Dear list,
I build haskell-platform 2011.04 by gentoo ~amd64 haskell overlay. But
I can't run ghci even I rebuilt ghc or run haskell-updater, error
message:
ghci
GHCi,
01.05.2012 08:11, Kazu Yamamoto (山本和彦) пишет:
Hello,
A twitter election on favorite programming language was held in Japan
and it appeared that Heskell is No. 10 loved language in Japan. :-)
http://twisen.com/election/index/654
Regards,
--Kazu
favourite = (1 / frequently used),
This response is written in literal Haskell.
{-# LANGUAGE DataKinds, KindSignatures, GADTs #-}
The key to getting the type checker involved is to put the information
where the type-checker can see it -- namely, the type signature.
So, let's change A so that the Safe/Unsafe information is in
Wow, Jeremy, your solution looks very nice. I'll try it and report back
Thanks a lot!!
2012/5/3 Jeremy Shaw jer...@n-heptane.com
This response is written in literal Haskell.
{-# LANGUAGE DataKinds, KindSignatures, GADTs #-}
The key to getting the type checker involved is to put the
Hi,
I'm trying to write a function to convert a conduit to a Pipe (from
pipes-core), and I'm having trouble understanding why the `Finalize`
field in a `PipeM` constructor returns `r`. This makes it impossible
to create it from the corresponding `M` constructor in pipes-core,
since `M` includes an
Hello,
check out http://haskellonline.org, an online Haskell typechecker. It
is essentially a thin web wrapper over ghc, but it takes some friction
out of learning Haskell, if only because no local setup is required.
It is a weekend's work, so do not be too harsh, but feedback is
welcome!
I have
Hello.
I am writing a compiler in Haskell and need some tools to work with
abstract syntax trees (like annotating them with source positions and
other things). I have been pointed out to the multirec package.
I have found some information about the package, but it is too dense to
read and
On Thu, May 3, 2012 at 2:22 AM, Niklas Broberg niklas.brob...@gmail.com wrote:
On Thu, May 3, 2012 at 2:52 AM, Andrew Seniuk ras...@gmail.com wrote:
Note that the Annotated version of the HSE parser/AST will probably
not provide enough generality for the sorts of attributes you want to
Ryan,
I've grown annoyed at System.Random enough (specifically, StdGen).
How much, if any, pushback would there be if I put together a FFI
binding to a C AES-CTR based RNG. There are many advantages:
0) The API wouldn't have to change (though some parts should, and some
change is already
Hi Thomas,
Personally, I would love to see that happen. It seems like the best way to
make split acceptable.
Is Brian Gladman's C implementation still best in class? In my tests even
without AESNI it could exceed the traditional System.Random in performance (
Thomas DuBuisson thomas.dubuis...@gmail.com wrote:
I've grown annoyed at System.Random enough (specifically, StdGen).
How much, if any, pushback would there be if I put together a FFI
binding to a C AES-CTR based RNG. There are many advantages:
[...]
I'd be tempted to pull in the
On Thu, May 3, 2012 at 5:26 PM, Ertugrul Söylemez e...@ertes.de wrote:
Thomas DuBuisson thomas.dubuis...@gmail.com wrote:
I've grown annoyed at System.Random enough (specifically, StdGen).
How much, if any, pushback would there be if I put together a FFI
binding to a C AES-CTR based RNG.
On 5/3/12 1:26 AM, Richard O'Keefe wrote:
The Little Lisper (and the other books
like The Little Schemer and The Seasoned Schemer) are
presumably meant to be funny, but to me come across as
offensively patronising
Tis a pity. I know the authors and they certainly didn't mean it to be
Thomas DuBuisson thomas.dubuis...@gmail.com wrote:
Vincent has done great work for Haskell+Crypto so I think he knows I
mean nothing personal when I say cprng-aes has the right idea done the
wrong way. Why a new effort vs Vincent's package?
1. cprng-aes is painfully slow.
2. It doesn't use
Hi all,
I'm proud to announce a new major release of the containers package :
http://hackage.haskell.org/package/containers-0.5.0.0
There has been a whopping 160 commits since the last release. The
major improvements are:
* a clearer distinction between value-lazy and value-strict
On May 3, 2012 5:49 PM, Ertugrul Söylemez e...@ertes.de wrote:
Thomas DuBuisson thomas.dubuis...@gmail.com wrote:
Vincent has done great work for Haskell+Crypto so I think he knows I
mean nothing personal when I say cprng-aes has the right idea done the
wrong way. Why a new effort vs
On Thu, May 3, 2012 at 12:29 PM, Baojun Wang wan...@gmail.com wrote:
/usr/lib64/ghc-7.4.1/base-4.5.0.0/HSbase-4.5.0.0.o: unknown symbol
`stat'
This is not a missing package, as some respondents seem to think; it's a
sign that something went very wrong during building it and the result is
On Thu, May 3, 2012 at 12:35 PM, Morel Pisum morel.pi...@googlemail.comwrote:
Weird. The base package is actually the most important package and
should be included in the haskell-platform.
Anyway; you could try to do cabal install base or so.
cabal-install cannot install base; it is and
On Fri, May 4, 2012 at 1:06 PM, Brandon Allbery allber...@gmail.com wrote:
On Thu, May 3, 2012 at 12:35 PM, Morel Pisum morel.pi...@googlemail.com
wrote:
Weird. The base package is actually the most important package and
should be included in the haskell-platform.
Anyway; you could try to
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