On 2008 Aug 17, at 23:45, Paul Jarc wrote:
A somewhat related issue: I'd like to avoid hard-coding the path to
runhaskell or ghc in the #! line. Instead, I'd like to use #!/bin/sh,
and have the shell find runhaskell or ghc in $PATH. This means the
#! /usr/bin/env runhaskell ...
--
brandon
On 2008 Aug 18, at 11:16, Henning Thielemann wrote:
know implicit parameters break referential transparency.
http://www.haskell.org/haskellwiki/The_Monad.Reader/Issue2/FunWithLinearImplicitParameters
Are you making the same mistake I did? Linear implicit parameters are
different from
On 2008 Aug 18, at 16:20, Evan Laforge wrote:
Which is comparable to the Reader version (with the
advantage/disadvantage of the body of 'escapeVelocity' not being
monadic).
In my opinion the implicit parameters don't make things simpler,
only less
portable, that's why I prefer the Reader
On 2008 Aug 18, at 17:09, Evan Laforge wrote:
They also seem to be removed from ghc:
http://www.haskell.org/pipermail/cvs-ghc/2006-September/031824.html
Again, that's *linear* implicit parameters (%foo instead of ?foo).
Oh, you're right. I made exactly the same mistake you made, and
On 2008 Aug 18, at 17:30, Jason Dagit wrote:
In my experience, with recent GHC there are only 3 packages needed to
install cabal-install and it's pretty painless. You need zlib, HTTP
and something else that I can't recall off the top of my head (but it
tells you). Each of these packages can be
On 2008 Aug 17, at 20:34, Spencer Janssen wrote:
On Sat, Aug 16, 2008 at 04:07:25PM -0500, Antoine Latter wrote:
Since the request to create a window has so many parameters, these
parameters are all wrapped up into a CreateWindow data type, which
is only ever used by the createWindow function.
On 2008 Aug 16, at 5:00, Andrew Coppin wrote:
What to do at the module level is less obvious. Having several
packages provide different implementations of the same thing is
arguably useful. (E.g., I know Gtk2hs provies an SOE module. What
about wxHaskell? If the interface is standard
On 2008 Aug 16, at 12:22, Changying Li wrote:
test.hs: /tmp/b: hGetChar: end of file
test.hs: /tmp/c: hGetChar: end of file
I think the thread will be blocked when /tmp/b has nothing.
but it get EOF, why ?
Because FIFOs are odd. Open them for read/write to avoid unexpected
EOFs and
On 2008 Aug 16, at 13:22, Andrew Coppin wrote:
Yeah, as I said, it's not immediately obvious exactly what the best
solution is. Maybe we just need to get everybody to come up with
more inventive names than just hashtable or binary. (E.g., We
have several parsers already, but they all have
On 2008 Aug 15, at 2:23, Richard A. O'Keefe wrote:
On 15 Aug 2008, at 12:17 pm, Brandon S. Allbery KF8NH wrote:
Actually, while I'm not sure how Linux does it, on the *BSDs pipes
are actually socketpairs.
This raises the question, which the documentation did not make clear
to me,
whether
On 2008 Aug 15, at 9:34, Tony Finch wrote:
On Thu, 14 Aug 2008, Brandon S. Allbery KF8NH wrote:
Actually, while I'm not sure how Linux does it, on the *BSDs pipes
are
actually socketpairs.
Not any more. FreeBSD replaced the socketpair implementation with a
faster
one in 1996
On 2008 Aug 14, at 2:28, Ketil Malde wrote:
Brandon S. Allbery KF8NH [EMAIL PROTECTED] writes:
Your previously stated use case sounds like a good fit. I can easily
imagine sendfile() implementations starving other network operations,
though (and IIRC linux's early sendfile() implementation
On Aug 14, 2008, at 16:05 , Jon Harrop wrote:
(spew)
Where exactly did we pick up this, er, individual? Would they please
take it back as defective?
--
brandon s. allbery [solaris,freebsd,perl,pugs,haskell] [EMAIL PROTECTED]
system administrator [openafs,heimdal,too many hats] [EMAIL
On 2008 Aug 14, at 19:07, Richard A. O'Keefe wrote:
to me, two of them don't have it, and the third seems to be
saying you cannot use it to move data from a file (which is
not a pipe) to a socket (which is not a pipe), which is the
use-case for sendfile().
Actually, while I'm not sure how
On 2008 Aug 13, at 15:01, Chaddaï Fouché wrote:
2008/8/13 Jason Dusek [EMAIL PROTECTED]:
I found an old lib for it:
http://www.haskell.org/ghc/docs/6.0/html/unix/System.Sendfile.html
Hoogle turns up nothing, though.
That don't sound very useful... Maybe when we only had String it was
On 2008 Aug 13, at 15:04, Brandon S. Allbery KF8NH wrote:
On 2008 Aug 13, at 15:01, Chaddaï Fouché wrote:
2008/8/13 Jason Dusek [EMAIL PROTECTED]:
I found an old lib for it:
http://www.haskell.org/ghc/docs/6.0/html/unix/System.Sendfile.html
Hoogle turns up nothing, though.
That don't
On 2008 Aug 13, at 18:25, Jason Dusek wrote:
Brandon S. Allbery KF8NH [EMAIL PROTECTED] wrote:
Right. I intended that to be a heads-up in both directions:
it is not simply a library convenience function, so one needs
to think about when to use it. In particular, it's possible
that overuse
On 2008 Aug 12, at 5:11, Conor McBride wrote:
$ ghc -package GLUT HelloWorld.lhs -o HelloWorld
Illegal instruction
I'm using ghc 6.8.3 on a Mac PowerBook G4. Googling
OpenGL illegal instruction produced an unending
choice of horror stories.
What message am I not getting? Is there some
On 2008 Aug 10, at 2:12, Jason Dagit wrote:
On Sat, Aug 9, 2008 at 10:44 PM, Roman Leshchinskiy [EMAIL PROTECTED]
wrote:
Maybe investing some time in fixing the most obvious darcs problems
would be a better solution?
We're working on that over at Darcs HQ, but there is no guarantee
On 2008 Aug 10, at 20:17, Norman Ramsey wrote:
For the last year I have been hoping to make 'a new darcs-like thing,
with a real theory founding it' an important part (one of three) of a
grant proposal in distributed computing. So you can see I am in favor
of spending money to create a
On 2008 Aug 6, at 2:02, Ketil Malde wrote:
Ben Franksen [EMAIL PROTECTED] writes:
Can I convert my working repos to darcs-2?
No. You cannot push or pull between darcs-2 format repos and
darcs-1 or
hashed format repos. This might not be optimal but is
understandable, since
the theory
On 2008 Aug 4, at 6:10, Malcolm Wallace wrote:
A283 SEARCH {4} {21}
TEXTstring not in mailbox
Assuming the first line can be read strictly, and the remainder should
be lazy, the parser might look something like this:
FWIW, the actual data looks more like
A283 SEARCH {4}
TEXT
{21}
On 2008 Aug 4, at 23:45, Tim Newsham wrote:
Anyway, I haven't yet used any ByteString IO functions. I ran
some tests when I was starting and it seems that using Handle IO
functions was a bit slower than using the Socket IO functions
directly.
It looks like there are a bunch of Handle IO
On 2008 Aug 3, at 1:17, Trent W. Buck wrote:
Neil Mitchell [EMAIL PROTECTED] writes:
The darcs 2.0 announcement read like an obituary
I don't know why, but a lot of people I spoke to seemed to have that
impression, and I essentially had to wave changelogs under their
face to
That would
On 2008 Aug 3, at 13:15, Luke Palmer wrote:
On Fri, Aug 1, 2008 at 3:45 PM, Eric Kow [EMAIL PROTECTED] wrote:
I would contribute to darcs if only...
I haven't used darcs much, so it's possible that I'll be forced to
start contributing by my own binding hypothetical.
I would contribute
On 2008 Aug 3, at 5:35, Andrew Coppin wrote:
Well Darcs already does that. So... what's to develop? It's not like
it's slow or buggy. I
slow: see ghc moving away from darcs. once you reach a certain
number of patches, it becomes *very* slow --- even with darcs 2's
speedups.
buggy:
On 2008 Aug 3, at 5:35, Andrew Coppin wrote:
Well Darcs already does that. So... what's to develop? It's not like
it's slow or buggy. I
Oh, two more under buggy:
(a) as mentioned by others, the ghc repos often cause darcs2 to spin
without doing anything. (This may secretly be the
On 2008 Aug 3, at 19:16, Ben Franksen wrote:
The naive way to emulate your split feature would be to create a
branch
where you delete all the stuff you don't want and then maybe move the
subproject to a new directory (nearer the top-level). This doesn't
work,
however, at least not in
On 2008 Aug 1, at 11:45, Eric Kow wrote:
Dear Haskellers,
I would like to take an informal poll for the purposes of darcs
recruitment. Could you please complete this sentence for me?
I would contribute to darcs if only...
The darcs2 announcement strongly suggested that darcs would no
On 2008 Jul 28, at 1:54, Galchin, Vasili wrote:
allocaBytes (#const sizeof(struct aiocb)) $ \ p_aiocb - do
poke p_aiocb aiocb
As I understand it, you can't do this;you must use the same aiocb
throughout (that is, the same chunk of memory, not merely the same
values; there is
On 2008 Jul 28, at 2:36, Galchin, Vasili wrote:
Hi Brandon,
So even if I go to ForeignPtr is a problem? And/Or is this a
by reference vs by value issue?
As I read your code, you're allocating a C object, poking the Haskell
fields into it, and passing it on, then peeking the
On 2008 Jul 28, at 2:41, Galchin, Vasili wrote:
So based on what you are saying I kind of need a Haskell AIO
imperative/monadic function that basically returns a handle that
is associated with this AIOCB chunk-of-memory This handle gets
passed around during an AIO I/O session??
On 2008 Jul 28, at 23:23, Kenn Knowles wrote:
What confuses me is that IncoherentInstances is on, but it is still
rejected by GHC 6.8.3 seemingly for being incoherent. I haven't tried
it with any other version. Am I missing something? Any suggestions
or pointers?
Er? Looks to me like it
On 2008 Jul 24, at 0:43, Richard A. O'Keefe wrote:
So binary distributions for SPARC/Solaris and SPARC/Linux would
be very very nice things for this new project to deliver early.
(Or some kind of source distribution that doesn't need a working
GHC to start with.
I'm still working on
On Jul 22, 2008, at 13:18 , L29Ah wrote:
outStanza | (isMessage) = outMessage
| (isPresence) = outPresence
| (isIQ) = outIQ
Why such a style doesn't work, so I must write ugly code like that:
Because the Haskell 98 Report specifies that guards are rewritten in a
On 2008 Jul 20, at 21:05, Richard A. O'Keefe wrote:
For asynchronous I/O, this means that
- you can allocate an aiocb object
- an aiocb passed to aio_suspend, aio_error,
aio_return, or aio_cancel should have been
filled in by aio_read or aio_write and should
be EXACTLY THE SAME object,
On 2008 Jul 19, at 2:40, Galchin, Vasili wrote:
My viewpoint is that the above Internal members must be carried
around in a Haskell program. Am I correct?? If I am correct, then
the Linux implementation of Posix AIO is not portable to say
Solaris? In hindsight, if I am correct, it seems
On 2008 Jul 19, at 16:42, Galchin, Vasili wrote:
You lost me can you explain what an opaque aiocb would
look like?
In Haskell, it's a ForeignPtr --- you can't see inside it except by
FFI calls. Although Duncan is correct and you can use an FFI
preprocessor to access the
On 2008 Jul 15, at 20:45, Austin Seipp wrote:
For the purpose of experimenting with NDP I went through the
process of getting the GHC head from darcs.haskell.org. As
specified in the developer wiki[1], using darcs get is basically
not possible because there're so many patches. So I downloaded
On 2008 Jul 13, at 9:36, Max Bolingbroke wrote:
2008/7/13 Claus Reinke [EMAIL PROTECTED]:
Then again, we don't do fuzzy matching, only completion
of partial identifiers and suggesting possible qualified
names and imports for unqualified ones.
Agreed: doing fuzzy matching on every available
Following up on my own message... talking to yourself is a bad sign,
right? :)
On 2008 Jul 13, at 11:21, Brandon S. Allbery KF8NH wrote:
Huh? Edit distance is a good way to handle typoes --- and, while
some people have asserted that we don't need that because I can see
it already, most
On 2008 Jul 13, at 19:50, Jonathan Cast wrote:
On Sun, 2008-07-13 at 18:28 -0500, Derek Elkins wrote:
On Thu, 2008-07-10 at 10:59 -0700, Jonathan Cast wrote:
On Thu, 2008-07-10 at 14:53 -0300, Marco Túlio Gontijo e Silva
wrote:
Hello,
how do I unbox a existential quantificated data type?
On 2008 Jul 11, at 11:33, Neil Mitchell wrote:
Quite true. Any objections to [EMAIL PROTECTED]
Google suggests that about 1 in 50 web pages spell beginner wrong,
using only one n. Given that many Haskeller's are not native
speakers, could we perhaps pick something that is easier to spell
On 2008 Jul 11, at 17:23, rodrigo.bonifacio wrote:
Is there any function that can be used for retrieving the exposed
functions of a given module?
Not in the usual introspection/RTTI sense; but you could probably use
the GHC API to read a .hi file. (At which point I direct you to
On 2008 Jul 11, at 19:46, Mitar wrote:
It is somehow award that passing function as an argument slow down the
program so much. Is not Haskell a functional language and this such
(functional) code reuse is one of its main points?
That is in fact the case; GHC's version of various Prelude
On 2008 Jul 10, at 14:00, Eric wrote:
I have downloaded cabal and am trying to install it but have gotten
the
following error message:
C:\cabal\cabal-install-0.5.1runghc Setup configure
Cabal itself is a special case; you need the same version of Cabal
already installed to install it
On 2008 Jul 7, at 11:14, Tim Bauer wrote:
My problem is that I control `doTinIO', but someone else provides
the computation (T a). I cannot force callers to strictly evaluate
their computations.
try (Control.Exception.evaluate ...) -- ?
--
brandon s. allbery
On 2008 Jul 6, at 16:47, Tony Morris wrote:
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
Michael Feathers wrote:
zip12 ((tails . nub) flightPaths) wayPoints etopsPackets (hd
geoCaches) groundSpeeds headings (map windShift headings)
(regulations !! 2) (foldr (\|/) (tail pathDistances)) [ghy
On 2008 Jul 5, at 19:02, Neil Mitchell wrote:
This is either a GHC bug, or a Yhc+Hugs bug - I'm not sure which, but
the compilers disagree:
import Prelude hiding ((==))
data Foo = Foo
instance Eq Foo where
(==) a b = True
I was thinking that GHC's behaviour seems more sensible, but the
On 2008 Jul 2, at 1:42, Galchin, Vasili wrote:
errno - throwErrnoIfMinus1 aioError (c_aio_error p_aiocb)
ghc thinks that Errno should be an instance of Num:
System/Posix/Aio.hsc:117:15:
No instance for (Num Errno)
I expect so it can compare it to -1(throwErrnoIfMinusOne). But
On 2008 Jul 2, at 2:15, Jonathan Cast wrote:
It seems as though it can return -1 if given non-sensical input.
But in
The POSIX spec says it returns EINVAL in that case.
--
brandon s. allbery [solaris,freebsd,perl,pugs,haskell] [EMAIL PROTECTED]
system administrator [openafs,heimdal,too
On 2008 Jul 2, at 2:32, Jonathan Cast wrote:
On Wed, 2008-07-02 at 02:17 -0400, Brandon S. Allbery KF8NH wrote:
On 2008 Jul 2, at 2:15, Jonathan Cast wrote:
It seems as though it can return -1 if given non-sensical input.
But in
The POSIX spec says it returns EINVAL in that case
On 2008 Jul 1, at 17:52, Ryan Ingram wrote:
Well, you're also (from your description) probably writing some
tracking information to an IORef of some sort. That can happen in the
middle of an otherwise pure computation, and it's difficult to know
exactly when it'll get triggered, due to
On 2008 Jun 29, at 4:56, Philip Weaver wrote:
I am under the impression they are deprecated and slated for removal.
This is the second time I have seen someone comment on implicit
parameters being planned for removal, so now you have my attention :).
I'd like to mention that a rather large
On Jun 27, 2008, at 10:15 , Jefferson Heard wrote:
checking for path to top of build tree... pwd: timer_create:
Invalid argument
Translated into plain English, this means your glibc is too old for
this binary distribution.
You will probably have to build from source with an older gcc as
On Jun 27, 2008, at 15:04 , Jefferson Heard wrote:
Linux version 2.6.9-34.0.2.ELsmp ([EMAIL PROTECTED]
build.centos.org) (gcc version 3.4.5 20051201 (Red Hat 3.4.5-2)) #1
SMP Fri Jul 7 18:22:55 CDT 2006
I can't help with much of anything Linux aside form having run into
that error on
On 2008 Jun 25, at 16:49, Henning Thielemann wrote:
On Wed, 25 Jun 2008, Andrew Wagner wrote:
The recruiter even said something along the lines of anyone who
knows haskell is certainly worth our time to talk to. Moral of the
story: Haskell rocks, and even Microsoft knows it!
On 2008 Jun 20, at 19:15, George Kangas wrote:
The type signature, which could be written (a - (b - b)) - ([a] -
(b - b)), suggests generalization to another type constructor C:
(a - (b - b)) - (C a - (b - b)). Would a foldable typeclass
make any sense?
On 2008 Jun 18, at 23:23, Tim Newsham wrote:
I can't seem to find any other way short of making a whole new GC
(as is done in Gtk2Hs/demos/graphic/Drawing.hs). Am I missing
something? Is there a reason the GC's arent retrievable?
Join the gtk2hs list (
On 2008 Jun 19, at 12:28, Stephen Howard wrote:
Cool, Either looks like what I'm looking for. I'll have to look
into that. What do I do about the fact that both HttpRequest and
HttpResponse have some of the same named fields (headers and body,
for example). Seems a pain to drop them
On Jun 18, 2008, at 15:31 , Stephen Howard wrote:
HttpMessage.hs:36:20: Not in scope: type constructor or class
`HttpRequest'
The troublesome line is the definition of the cookie function at
the end of the code. I've made
Right. HttpRequest is a data constructor associated with the
On 2008 Jun 16, at 19:18, David Roundy wrote:
On Mon, Jun 16, 2008 at 4:07 PM, Evan Laforge [EMAIL PROTECTED]
wrote:
Every other language throws an exception, even C will crash the
program, so I'm guessing it's telling the processor / OS to turn
these
into signals, while GHC is turning
On 2008 Jun 14, at 12:59, Sebastiaan Visser wrote:
But I'm still curious about how to lazily parse messages with
arbitrary size Unicode headers and plain (possibly) binary bodies.
Sounds like Data.Binary (see hackage) to me.
--
brandon s. allbery [solaris,freebsd,perl,pugs,haskell] [EMAIL
On 2008 Jun 12, at 16:58, Dominic Steinitz wrote:
Ok but doesn't that rebuild everything not just the bits that have
changed?
Enough stuff usually changes that it's necessary (and for whatever
reason dependencies don't catch enough of it).
--
brandon s. allbery
On 2008 Jun 11, at 0:43, Simon Marlow wrote:
Unix semantics just isn't the right thing when it comes to non-
blocking I/O. If only there were non-blocking read()/write() system
calls, we'd be fine.
Have you considered using aio_read() and company?
--
brandon s. allbery
On 2008 Jun 4, at 22:30, Paul L wrote:
The server is then very much like a VM or an interpreter of an
embedded language, with execution stacks entirely encoded and stored
in each HTML page sent to the user and back from the user as an
encoded URL or form data. So the server is entirely
On 2008 Jun 3, at 16:40, Galchin, Vasili wrote:
1) How do I get the local package.conf built and populated?
2) How do I get a test case to link against this experimental
local version of unix? Is there a --prefix or something like
that I pass on runhaskell Setup.hs build?
both
On 2008 May 23, at 13:34, Luke Palmer wrote:
On Fri, May 23, 2008 at 10:55 AM, Jules Bean [EMAIL PROTECTED]
wrote:
Krasimir Angelov wrote:
The monads design is used in Data.Map i.e.
lookup :: (Monad m, Ord k) = k - Map k a - m a
which is widely considered a poor design decision and a
On 2008 May 21, at 12:31, Bulat Ziganshin wrote:
Wednesday, May 21, 2008, 8:11:56 PM, you wrote:
Suppose p1, p2, p3 are 3 predicates
that take an input -- say, a String.
They return either (True, result)
or False.
if they return Just result or Nothing - yes, use Maybe as
On 2008 May 21, at 1:37, Galchin, Vasili wrote:
I fairly innocuous question ;^). How does ghc-pkg know where are
the *package.conf files are located?
The installed ghc-pkg is a shell script, to wit:
#!/bin/sh
GHCPKGBIN=/usr/local/lib/ghc-6.8.2/ghc-pkg.bin
On 2008 May 21, at 2:35, Galchin, Vasili wrote:
hmm ... ;^). I found and read through part of ghc-pkg.hs ..
ghc-6.8.2/utils/ghc-pkg/ .. I have 6 broken Haskell package
databases (not debian) under /usr/lib/haskell-packages/ghc6/lib/.
When I run ghc-pkg on them I get [EMAIL
On 2008 May 20, at 7:53, Galchin, Vasili wrote:
What is the difference between the following two ghc-pkg
database instances:
/usr/lib/ghc-6.8.2/package.conf
/usr/local/lib/ghc-6.8.2/package.conf
You somehow have two different ghc 6.8.2 packages installed, and the
two package
On 2008 May 18, at 4:40, Andrew Coppin wrote:
Bulat Ziganshin wrote:
if you need maximum efficiency,
drop all this high-level code and map md5.c to haskell as it was done
in Don's blog
Wait... you're telling me to give up? To not even try??
Bulat is the naysayer of the group; according to
On 2008 May 18, at 9:55, Andrew Coppin wrote:
Brandon S. Allbery KF8NH wrote:
Bulat is the naysayer of the group; according to him Haskell is a
nice idea that will never actually work (but he uses it anyway, who
knows how he rationalizes it to himself).
Bulat is apparently not alone
On 2008 May 18, at 9:59, Kaveh Shahbazian wrote:
For something like: type Thing a b = ThisWay a | ThatWay b | NoWay
actually there is no equivalents for data constructor
I presume you mean data instead of type. Not that I can address
your question directly, as I don't know C#. In C it's
On 2008 May 18, at 10:45, Bulat Ziganshin wrote:
and a few lines later you repeat what i said few years ago - ghc
optimization research has got 100x times less attention than C++
optimization so we can't expect the same results in the next 5-10
Mmm, no. You tend to say, or at least very
On 2008 May 18, at 11:10, Bulat Ziganshin wrote:
we don't have ghc optimized as good as gcc. when i tell about it, you
tell that i'm not right. then you tell that ghc may be improved in
You're doing a remarkably good job of not hearing what I say. Hard
numbers or etc. do nothing
On 2008 May 18, at 11:21, Bulat Ziganshin wrote:
Hello Brandon,
Sunday, May 18, 2008, 7:15:17 PM, you wrote:
we don't have ghc optimized as good as gcc. when i tell about it,
you
tell that i'm not right. then you tell that ghc may be improved in
You're doing a remarkably good job of not
On 2008 May 17, at 14:52, D. Gregor wrote:
Common Lisp is a multiparadigm, general purpose programming language
that supports imperative, functional, and object-oriented
programming paradigms. Haskell is purely functional. Is this a
reason why there is not macro feature in Haskell? I
On 2008 May 17, at 16:48, anton muhin wrote:
Why not -O3?
-O3 doesn't do anything over -O2 in ghc. -fvia-c -optc-O3 *might* be
an improvement, or might not.
--
brandon s. allbery [solaris,freebsd,perl,pugs,haskell] [EMAIL PROTECTED]
system administrator [openafs,heimdal,too many hats]
On 2008 May 15, at 3:03, Yitzchak Gale wrote:
Brandon S. Allbery KF8NH wrote:
Adjacent different scripts in general is probably a reasonable token
discriminator. A token combining LTR and RTL, for example, is just
confusing.
So you would like to ban identifiers that contain both
letters
On 2008 May 15, at 3:25, Achim Schneider wrote:
Yitzchak Gale [EMAIL PROTECTED] wrote:
Brandon S. Allbery KF8NH wrote:
Come to think of it, if you're after math notation, enough Greek
letters are used as symbols that it might be necessary to just
exclude them from use as letters.
While I
On 2008 May 15, at 4:33, Yitzchak Gale wrote:
Brandon S. Allbery KF8NH wrote:
Come to think of it, if you're after math notation, enough Greek
letters are used as symbols that it might be necessary to just
exclude them from use as letters.
Yitz Gale wrote:
While I have not yet noticed
On 2008 May 14, at 14:23, Andrew Coppin wrote:
Neil Mitchell wrote:
1. What is ghc-core?
You actually answer this question as part of question 2. Think of it
as simple Haskell with some additional bits.
I rephrase: I know what GHC's Core language is. But Dons said I
suggest you install
On 2008 May 14, at 14:32, Andrew Coppin wrote:
Personally, I'd just like to be able to get rid of -, \ and
other such hacks. Would it be possible to amend GHC so that it
accepts - and [whatever the Unicode codepoint for left arrow
is] and treats both the same?
Both of those are already
On 2008 May 14, at 14:34, Dan Weston wrote:
So I've always wondered, if you are writing down a number being
dictated (slowly) by someone else, like 234, do you write the 2,
then leave space and write the 4, then go back and fill in with 3?
Or do you push the 4 onto the stack until the 3
On 2008 May 14, at 15:00, Andrew Coppin wrote:
Brandon S. Allbery KF8NH wrote:
On 2008 May 14, at 14:32, Andrew Coppin wrote:
Personally, I'd just like to be able to get rid of -, \ and
other such hacks. Would it be possible to amend GHC so that it
accepts - and [whatever the Unicode
On 2008 May 14, at 15:00, Andrew Coppin wrote:
Brandon S. Allbery KF8NH wrote:
On 2008 May 14, at 14:32, Andrew Coppin wrote:
Personally, I'd just like to be able to get rid of -, \ and
other such hacks. Would it be possible to amend GHC so that it
accepts - and [whatever the Unicode
On 2008 May 14, at 22:07, Richard A. O'Keefe wrote:
On 15 May 2008, at 7:19 am, Brandon S. Allbery KF8NH wrote:
Unfortunately, while I thought there was a distinct lambda sign
that wasn't the lowercase Greek letter, there isn't. (That said, I
don't see why it couldn't be a keyword. You'd
On 2008 May 14, at 22:23, Patrick Surry wrote:
So maybe what I really want is to essentially write my source in
(la)tex
and be able to both compile and render to dvi at the same time? I
suppose word's crazy equation editor or mathml is another option but
it
makes the source itself either
On 2008 May 14, at 22:40, Richard A. O'Keefe wrote:
I still suspect it would not be outside the pale to make λ a
keyword. We already have several, after all.
I'd rather not have to write \x as λ x with a space required after
the λ.
I suspect that λ is the lambda-symbol iff it is not
On 2008 May 14, at 22:57, Derek Elkins wrote:
On Thu, 2008-05-15 at 14:40 +1200, Richard A. O'Keefe wrote:
I suspect that λ is the lambda-symbol iff it is not preceded by any
identifier character and is not followed by a Greek letter might
work.
λω. ...
λα. ...
λδ ε. ...
Come to think
On 2008 May 13, at 0:26, J C wrote:
On the other hand, if the experts can't help using malloc, unsafe*,
global mutables and IO, I'll be able to conclude that this is probably
what it takes to make Haskell run fast :-(
Very few of the shootout entries have been revisited since most of the
On 2008 May 12, at 22:18, Jeff Polakow wrote:
Then, I immediately blow my stack if I try something like:
mean [1..10].
The culprit is actually sum which is defined in the base libraries
as either a foldl or a direct recursion depending on a compiler
flag. In either case, the
On 2008 May 13, at 17:01, Andrew Coppin wrote:
That definition of mean is wrong because it traverses the list
twice. (Curiosity: would traversing it twice in parallel work any
better?) As for the folds - I always *always* mix up
It might work better but you're still wasting a core that
On 2008 May 13, at 17:12, Andrew Coppin wrote:
[Oh GOD I hope I didn't just start a Holy War...]
Er, I'd say it's already well in progress. :/
--
brandon s. allbery [solaris,freebsd,perl,pugs,haskell] [EMAIL PROTECTED]
system administrator [openafs,heimdal,too many hats] [EMAIL PROTECTED]
On 2008 May 11, at 11:47, Ivan Amarquaye wrote:
Now my problem is this...I'm assuming that the hyphen normally comes
at the end of a sentence like this: there are so many guys ravis-
hing our women and this can be demonstrated in haskell by \n
which places the words or characters following
On 2008 May 11, at 22:42, Don Stewart wrote:
ok:
Maybe types force you to deal with it, while simultaneously
providing convenience functions to help you deal with it.
I readily grant that Maybe is a wonderful wonderful thing and I use
it
freely and
voluntarily. BUT it should not
On 2008 May 10, at 16:47, Galchin, Vasili wrote:
Last night I sent out an announcement about some POSIX work
that I have been doing. In any case, one of the FFI wrappers is
driving me crazy, i.e. the one for mq_receive:http://opengroup.org/onlinepubs/007908799/xsh/mq_receive.html
.
On 2008 May 10, at 18:56, PR Stanley wrote:
Paul: Hi folks
data Maybe a = Nothing | Just a
What is the underlying rationale for the Maybe data type?
is it the
safe style of programming it encourages/
Something tells me this is going to start a lengthy discussion.
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