Matthew Cox wrote:
One example given in this discussion is:
clunky env var1 var1 = case lookup env var1 of
Nothing - fail
Just val1 - case lookup env var2 of
Nothing - fail
Just val2 - val1 + val2
where
fail = val1 + val2
this needs to be fixed to:
clunky env var1 var1 = case
Fritz Henglein wrote:
According to a message from GHCi, version 6.4.1 (see below; bug also
reproduceable with 6.4.2, though not shown here since it consistently
resulted in a core dump without prior message) under Windows XP (fully
updated per 2006-07-15), I am herewith reporting what appears to
Has somene already implemented something like:
$ghc-pkg --where-from ParseError
package parsec: defining modules: Text.ParserCombinators.Parsec.Error,
Text.ParserCombinators.Parsec
?
lambdabot @index does what I want, but not with my libs installed only
locally..
This might be used by any
On Fri, 2006-07-21 at 10:12 +0200, Marc Weber wrote:
Has somene already implemented something like:
$ghc-pkg --where-from ParseError
package parsec: defining modules: Text.ParserCombinators.Parsec.Error,
Text.ParserCombinators.Parsec
Have you tried Hoogle?
http://haskell.org/hoogle/
Rich Fought wrote:
I'm trying to use heap profiling with +RTS -hc -i1 options and running
my program for about 30 seconds. However, I only get around 7 samples
with seemingly bogus timetags (i.e. 0.00, 3.69, 3.73, 3.10, 4.05,
4.12). What's going on?
I'm running GHC 6.4.2 on Windows
$ghc-pkg --where-from ParseError
package parsec: defining modules: Text.ParserCombinators.Parsec.Error,
Text.ParserCombinators.Parsec
Have you tried Hoogle?
http://haskell.org/hoogle/
I know it. But I don't know yet which source it takes (haskell - source,
haddck html files, ...) ?
My
Marc Weber [EMAIL PROTECTED] wrote:
My purpose: After having found the a function I want to use it without
having to search where does it belong to and where does it come from.
I want it beeing as up to date as the installed libraries.
You can download Hoogle as a command-line tool, and give
Hi,
My purpose: After having found the a function I want to use it without
having to search where does it belong to and where does it come from.
I'm not sure what you are asking for? Where does it come from? Surely
thats just the module name - which hoogle easily gives you. If there
is some
Simon Marlow wrote:
IIRC the timestamps ignore time spent in GC and time spent sampling
the heap, so they measure runtime of the program only.
So if I have a server that is idle most of the time waiting for
requests, the timestamps recorded in the heap profile will not be real
time but
Hello Marc,
Friday, July 21, 2006, 3:21:29 PM, you wrote:
I don't know wether you've ever prorgammed in Java using Eclipse?
After using a type you can press C-S-o to update all imports which will
give you the choice which one to use if there is more than one
opportunity. It would be nice to
On a separate issue, I can't seem to get the -hcname or -hmname options
to work. For instance, profiling with just -hm yields an entry for
module Network.HTTP, yet when I try to profile again with
-hmNetwork.HTTP, I do not get a heap dump. Is there some special
formatting I am missing?
Am I crazy or is there an error in regex.h included with GHC?
On line 110 there appears to be an extraneous or unterminated 'extern C {'
Regards,
Rich
___
Glasgow-haskell-users mailing list
Glasgow-haskell-users@haskell.org
Dear all,
the library PFP by Martin Erwig is quite useful for probabilistic
calculations. I have extended it to abstract monads, cabal and darcs,
confer [1].
I cannot find a licence or legal note on the page of Martin Erwig.
Therefore, I can legally only publish a patch. Unfortunatly, darcs does
[ Dear all, I'd love to see contributions from the Haskell and FP
community to this upcoming edition of PLAN-X! Best wishes, --
Torsten ]
Call for Papers and Software Demonstrations
P L A N - X 2 0 0 7
Programming
On 7/19/06, Stefan Karrmann [EMAIL PROTECTED] wrote:
Unfortunatly, darcs does
not provide a method to extract patches as far as I know. (Hints are
welcomed.)
darcs diff and darcs annotate.
--
Taral [EMAIL PROTECTED]
You can't prove anything.
-- Gödel's Incompetence Theorem
On 7/20/06, Evan Martin [EMAIL PROTECTED] wrote:
But I also don't quite understand how the typing works out.
For example, can you use StablePtr directly with FFI functions, or do
they require you casting through Ptr?
Yes. You can use any Storable with FFI functions, as far as I know.
StablePtr
My 2 cents:
Sven Moritz Hallberg (Sun, Jul 16, 2006 at 01:24:43AM +0200):
[...]
She must specify it somehow. Two possibilities come to mind:
1. Add a field to the package description of foo (v1.4, say) that says
I'm backwards-compatible with 1.3. When building, this relation
Dear all,
I have renamed all files. Because of this the darcs diff contains *all*
source lines. Then it is not only a patch but also the complete original
work. Moreover, the patch does not contain a move from or unlink of the old
locations.
Taral (Fri, Jul 21, 2006 at 11:22:22AM -0500):
On
On Fri, Jul 21, 2006 at 10:26:04PM +0200, Stefan Karrmann wrote:
I have renamed all files. Because of this the darcs diff contains *all*
source lines. Then it is not only a patch but also the complete original
work. Moreover, the patch does not contain a move from or unlink of the old
On 2006-07-20 at 18:31BST I wrote:
On 2006-07-13 at 10:16BST I wrote:
Hooray! I've been waiting to ask Why aren't we asking what
laws hold for these operations?
Having thought about this for a bit, I've come up with the
below. This is intended to give the general idea -- it's not
| | ps: you successfully going through all the standard Haskell
troubles
| in
| | this area :) seems that making FAQ about using ST monad will be a
| | good idea :)
|
| Indeed. If someone would like to start one, a good place for it
would be
| GHC's collaborative-documentation Wiki
|
Hello all,
my question is probably dull. So answers to better investigate manual
are welcome. Why is this correct?
___ ___ _
/ _ \ /\ /\/ __(_)
/ /_\// /_/ / / | | GHC Interactive, version 6.4.1, for Haskell 98.
/ /_\\/ __ / /___| | http://www.haskell.org/ghc/
On 21/07/06, Dusan Kolar [EMAIL PROTECTED] wrote:
Prelude putStr Ahoj\n
Ahoj
Prelude putStr Ahoj\n `seq` 3+3
6
Prelude :q
Leaving GHCi.
And not
Prelude putStr Ahoj\n
Ahoj
Prelude putStr Ahoj\n `seq` 3+3
Ahoj
6
Well, I understand that seq evaluates the first argument. But the
result of
Hello Dusan,
The reason why that does not work as you expect it to is because the
type of the whole expression is not monadic. Therefore it will
basically evaluate the action until it's an action ready to be executed,
but not execute it, cause it's not in the IO monad. It's the same as
having a
Hello
As many of you may have noticed I have been away for some months.
This has been due to health problems which have unfortunately
kept me unable to work on Haskell projects.
I am not dead and will be working on resolving the backlog
of messages (will probably take a week). I will be slowly
Hi everybody,
and especially Uwe Schmidt et al.
I ran into some problems trying to process some xml from a string source,
illustrated in the code below. From file, using readDocument, everything works
great though. I've probably missed a finer detail or two in the arrow handling,
or it could be
The IO monad hasn't given me too much trouble, but I want to be sure
to structure things the way they should be. If I get everything
running using IO first and then have type-checking problems with ST,
it will be tempting to just slap on an unsafePerformIO and call it
good. Sure, it's really
Neil Mitchell wrote:
I have also added a canonicalPath function, support for spotting
file\con as invalid and fixing it, support for \\?\ paths (if you
don't know what they are, don't look it up, they are quite painful!)
and a few very obscure corner cases which broke some of the
properties.
Hi,
I haven't been following this discussion very closely, but this caught my eye.
Has anyone pointed out yet that eliminating .. in a FilePath isn't valid in
the presence of symbolic links? I vaguely recall that this is why Krasimir's
System.FilePath library doesn't include normalisation.
Not totally relevant to what the discussion has evolved to, but I wrote
a factorial function using STRefs (in the spirit of the Evolution of a
Haskell programmer) and I think it qualifies as a really simple example.
Code follows:
import Data.STRef
import Control.Monad.ST
foreach ::
Neil Mitchell writes:
We should avoid referring to $PATH as the path, since we
already have FilePath.
Agreed, but I couldn't come up with a better name, if anyone has any
suggestions.
searchPath?
--
David Menendez [EMAIL PROTECTED] http://www.eyrie.org/~zednenem/
The following pain is sort of ghc (6.4.2) specific.
(The same behavior is achievable with hugs -98 +O which is Ok in so far
that +O (as opposed to +o) is not strongly supposed to be coherent.)
Note the following GHC options preceding the code.
They do not contain -fallow-incoherent-instances.
On 7/21/06, S C Kuo [EMAIL PROTECTED] wrote:
Not totally relevant to what the discussion has evolved to, but I wrote
a factorial function using STRefs (in the spirit of the Evolution of a
Haskell programmer) and I think it qualifies as a really simple example.
Code follows:
import Data.STRef
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