Here is the error.
(filter #(:born \...@%) world)
java.lang.IllegalArgumentException: Start must be less than or equal
to end: 2147483647, -2147483648
It is probably something I have done wrong in the code (the simulation
crashed with a "java.lang.RuntimeException: Agent has errors
(NO_SOURCE_FI
In fact it has been corrected in the clojure svn.Sorry for the noise,
Gaetan
2009/1/26 gaetan
>
> I am not sure of that but it may come, as Eric suggest, from the
> import function in core.clj. Indeed this function is based on
> Class#forName which use Reflection#getCallerClass to find the clas
According to one of the posts beneath the log, the issue has been
fixed in the latests svns. I have no clue what the technical problem
was in clojure's source.
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
"Clojure
Thanks Konrad
I do not understand the benefit of storing the map-board result.
The map-board function it self is using lazy for loop.
Why isn't the laziness transitive automatically?
On Jan 11, 12:05 pm, Konrad Hinsen wrote:
> On 11.01.2009, at 08:56,Tzachwrote:
>
> > Following your good advice,
I personally don't think I'd use the functions that return more than
one min/max. I think in such contexts, I'm usually more interested in
just sorting the whole collection. So I'd be happy just with the ones
that return one result.
--~--~-~--~~~---~--~~
You rece
user=> (time (dot-product vec1 vec2))
"Elapsed time: 2646.265984 msecs"
114088450
user=> (time (inner-product vec1 vec2))
"Elapsed time: 5098.085298 msecs"
114088450
Java command is:
rlwrap --remember -c -b "(){}[],^%0@"";:''|\"
-f /home/lprefontaine/.clojure/.clj_comple
On Jan 27, 2:08 am, Mark Volkmann wrote:
> Let's see if I've got this straight.
>
> (def foo 1) creates a Var in the default namespace with a value of 1.
>
> (create-ns 'com.ociweb.demo) ; creates a new namespace
> (intern 'com.ociweb.demo foo 2) ; creates another Var named foo, but
> it's not in
Let's see if I've got this straight.
(def foo 1) creates a Var in the default namespace with a value of 1.
(create-ns 'com.ociweb.demo) ; creates a new namespace
(intern 'com.ociweb.demo foo 2) ; creates another Var named foo, but
it's not in the default namespace
But the last line gives a java
I've written a few tests for bug fixes from the main line of Clojure, and I
would like to get feedback and contribute them to contrib if they're useful.
I have patches to clojure.contrib.test-clojure for the following topics:
reader: numeric constants of different types don't overwrite each other
On Jan 17, 2009, at 6:29 PM, Stephen C. Gilardi wrote:
>
> I think it's interesting experimental code. Please do send in a CA
> and let's get something like this into ns-utils.
>
I am now listed on http://clojure.org/contributing so feel free to
commit resolve* (or something like it).
--~-
On Jan 26, 2009, at 4:24 PM, Mark Engelberg wrote:
>
> Hey, I just looked back at the original post that started the thread.
> At some point, I had changed my function so (cartesian-product)
> returned nil instead of (nil), but based on Jason's post, I've changed
> it back in another paste annotat
Could someone who has a machine with more than 2 cores please
run the following code? It calculates the inner product of two given
vectors.
Usage: (inner-product [1 2 3] [4 5 6]) => 32
You can change the "9000" which is sprinkled over the code (I know
it's not beautiful, but I'm new to clojure so
This is a great post. However, the author brings up an issue with the
way that lambdas are handled by the JVM. According to the article,
lambdas are not garbage collected and can therefore overrun the
PermGen, a special place in the heap for storing anonymous classes,
and as a result, the user mus
On Jan 26, 2009, at 7:43 PM, Shawn Hoover wrote:
I have a few tests in the works and am lacking commit access as
well. Should test contributions follow the procedure of group
discussion, then file an issue, then post a patch? If so, what would
you like to know about the patch(es)?
I cons
Chouser asked me Saturday night if it would be possible to reduce the
number of functions in the module. I looked at the problem, and if we
want to keep the two sets of functions (returning one element and
returning many elements), idiomatically, it seems like all the
functions will have to stay:
On Sun, Jan 25, 2009 at 6:51 PM, Frantisek Sodomka wrote:
> I have some tests ready for test_clojure. I asked Rich for SVN access
> rights. There is gonna be more tests soon :-)
>
> Frantisek
>
Contrib Stewards,
I have a few tests in the works and am lacking commit access as well. Should
test co
Hey, I just looked back at the original post that started the thread.
At some point, I had changed my function so (cartesian-product)
returned nil instead of (nil), but based on Jason's post, I've changed
it back in another paste annotation.
--~--~-~--~~~---~--~~
Y
I updated the paste with the changes we've discussed.
http://paste.lisp.org/display/74134#3
I'll keep playing around to see if I can get it faster, but so far,
this is the fastest way I've found to generate the cartesian product
in standard order.
--~--~-~--~~~---~--
On Jan 26, 2009, at 6:39 PM, Mark Volkmann wrote:
I still have a question though. Why is it that when I use the ns macro
to create a new namespace, the core symbols are still available even
though I haven't done a refer on clojure.core?
That's one of the features of the ns macro. It handles t
Hope this isn't a double-post, but here is a nice example of a rewrite
of some reddit post on a genetic algorithm for generating the mona
lisa in clojure by Yann N. Dauphin
http://npcontemplation.blogspot.com/2009/01/clojure-genetic-mona-lisa-problem-in.html
--~--~-~--~~~-
On Mon, Jan 26, 2009 at 5:31 PM, Mark Volkmann
wrote:
> In a running script it seems that the symbols in clojure.core are
> always available regardless of the current namespace.
I just learned this isn't true. Just like in a REPL, the default
namespace for a running script is initially set to us
In a running script it seems that the symbols in clojure.core are
always available regardless of the current namespace.
This is different in a REPL. The initial default namespace, user,
pulls in all of core (with a refer) so those symbols can be used
without namespace-qualifying them. However, if
On Mon, Jan 26, 2009 at 4:48 PM, James Reeves wrote:
>
> On Jan 26, 10:29 pm, Cosmin Stejerean wrote:
> > Can you help me understand the difference between this and use (or :use
> in
> > ns)?
>
> use is internal to the current namespace. You can use other namespaces
> without their publics being
On Jan 26, 10:29 pm, Cosmin Stejerean wrote:
> Can you help me understand the difference between this and use (or :use in
> ns)?
use is internal to the current namespace. You can use other namespaces
without their publics being added to the current namespace. So:
=> (ns a)
=> (def x 10)
=> (ns
Hi Christian,
You are right, I left out the @result. (So far I haven't yet needed
the value so I don't have a test for that scenario. Classic case of
over-documenting.)
I will take the double-check out. Not only is its value limited, its
confusion potential is high.
Stuart
> "All other i
On Mon, Jan 26, 2009 at 4:20 PM, James Reeves wrote:
>
> Hi folks,
>
> I've recently found myself having to choose between dividing
> functionality between many specific namespaces, or having a few very
> generic namespaces. In theory, being specific is the better choice, as
> it allows users to m
Hi folks,
I've recently found myself having to choose between dividing
functionality between many specific namespaces, or having a few very
generic namespaces. In theory, being specific is the better choice, as
it allows users to more accurately pick what they want to use. But if
most of the time
On Jan 26, 4:47 pm, "Stephen C. Gilardi" wrote:
> On Jan 26, 2009, at 4:31 PM, BerlinBrown wrote:
>
> > I want to output a directory with a similar listing (see below), but
> > only a fixed number of spaces. Is there a clojure approach to
> > already do this.
>
> > -rw 13290 1216183460872 Lis
I am not sure of that but it may come, as Eric suggest, from the
import function in core.clj. Indeed this function is based on
Class#forName which use Reflection#getCallerClass to find the class
loader. May be it uses the application class loader instead of the
root class loader of clojure (in whi
Rich Hickey writes:
> On Jan 26, 11:15 am, Cosmin Stejerean wrote:
>> On Mon, Jan 26, 2009 at 6:34 AM, Rich Hickey wrote:
>>
>> > On Jan 25, 4:10 pm, Laurent PETIT wrote:
>> > > #- makes sense (CL didn't always make things the wrong way :-)
>>
>> > > And indeed, #; *could* break a lot of alrea
On Jan 26, 2009, at 4:31 PM, BerlinBrown wrote:
I want to output a directory with a similar listing (see below), but
only a fixed number of spaces. Is there a clojure approach to
already do this.
-rw 13290 1216183460872 LispExample_Flow.png
-rw 3211 1217537516267 PDFReport.java
I think in Co
In addition to the functional shuffle thread (can't seem to post to
that one anymore, might be too old?), I've written a lazy shuffle. Not
sure if it is the best way to write it, but I needed a lazy shuffle
primarily because I wanted to randomly pair a few agents from a large
vector of agents with
"All other invocations return the first calculated value."
I fail to spot the part of your function where you keep this promise.
>From what I can tell, your function would return nil on all but the
first invocation.
I think you forgot to write "@result" in the else case in your last if clause.
On 26.01.2009, at 20:58, Mark Engelberg wrote:
> On Mon, Jan 26, 2009 at 4:38 AM, Rich Hickey
> wrote:
>> Continuations, like TCO, will have to come from the JVM.
>
> Perhaps a better question to ask is whether it is possible to
> implement yield without user-available continuations. I assume
I want to output a directory with a similar listing (see below), but
only a fixed number of spaces. Is there a clojure approach to
already do this.
-rw 13290 1216183460872 LispExample_Flow.png
-rw 3211 1217537516267 PDFReport.java
I think in Common Lisp, the powerful 'format' could make this h
On Mon, Jan 26, 2009 at 3:20 PM, e wrote:
> cool. Thanks for the info about #{}. I'm glad I learned about that. To
> learn even more, what is the reasoning behind that choice? I've seen the
> sharp used for other things in clojure; is there a connection?
It activates a special read-table for
Thanks for that solution. Ran into the same problem as well, and right
now I don't want to solve it, but just finish something else.
On Dec 13 2008, 11:21 pm, Eric Sessoms wrote:
> Did you ever get this resolved? I just had the same thing start
> happening to me today, after not experiencing an
Lancet's runonce function needs to wrap a function with runs-only-once
semantics, *and* make subsequent callers wait for the return value
before proceeding. There was a thread on this last November where Rich
explained several approaches
(http://groups.google.com/group/clojure/msg/406be93eb
Daniel Jomphe wrote:
> Now, all I need is to understand why my use of
> (:name (meta (var expect#))) doesn't work.
Hmm, seeing (var ...) is a special form, it probably doesn't evaluate
its argument. Thus it tries to give me the interned symbol of the let-
bound expect#, which is obviously wrong.
Daniel Jomphe wrote:
> What is (var ...)? I didn't find it in the api docs, nor in the Vars
> and Environment page.
Sorry, I didn't search well enough; found it.
Now, all I need is to understand why my use of (:name (meta (var
expect#))) doesn't work.
--~--~-~--~~~--
Perry Trolard wrote:
> You can get the symbol that names the function from the Var's
> metadata, like:
>
> user=> (:name (meta (var =)))
> =
Thank you Perry.
What is (var ...)? I didn't find it in the api docs, nor in the Vars
and Environment page.
I'm yet to make your code work for my specifi
On Mon, Jan 26, 2009 at 4:38 AM, Rich Hickey wrote:
> Continuations, like TCO, will have to come from the JVM.
Perhaps a better question to ask is whether it is possible to
implement yield without user-available continuations. I assume it's
possible since Python has yield, but not continuations
On Jan 24, 2:25 pm, Frantisek Sodomka wrote:
> Word "streams" invokes association to data-flow languages. For a
> while, I was following Project V:
>
> Simple Example of the Difference Between Imperative, Functional and
> Data
> Flow.http://my.opera.com/Vorlath/blog/2008/01/06/simple-example-of-
Lancet is a build DSL written in Clojure, and a sample app in the book
[1]. It combines ant tasks with a Clojure build language, and uses
Chouser's shell-out to implement a system call for jumping to OS level
stuff.
Lancet's own build script is below. There isn't much in the way of
docs,
Hi Daniel,
You can get the symbol that names the function from the Var's
metadata, like:
user=> (:name (meta (var =)))
=
user=>
Best,
Perry
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
"Clojure" group.
To post t
Hi, I'm learning Clojure by playing with a simple test toolkit:
(fn-with-tests + [[= 2 [1 1]]
[= 2 [1 1]]
[= 2 [1 0]]
[= 2 [2 0]]])
..
FAIL: [# 2 [1 0]]
.
=== Tests Done ===
Some tests FAILED!
false
As you can see, I want to report t
On Mon, Jan 26, 2009 at 12:07 PM, Rich Hickey wrote:
>
>
>
> On Jan 26, 11:15 am, Cosmin Stejerean wrote:
> > On Mon, Jan 26, 2009 at 6:34 AM, Rich Hickey
> wrote:
> >
> > > On Jan 25, 4:10 pm, Laurent PETIT wrote:
> > > > #- makes sense (CL didn't always make things the wrong way :-)
> >
> >
Brian S.,
You're quite welcome. I'm glad you're back in action. I'm going to add
a check for the type of that argument to give a more helpful error
message than "ClassCastException".
--Steve
On Jan 26, 2009, at 1:34 PM, BrianS wrote:
Steve,
Exactly the problem. As soon as I turned the
On Jan 26, 2009, at 10:28 AM, Mark Engelberg wrote:
>
> I've tested that already, and it takes even longer for all but trivial
> inputs, because rec now prevents the combinations sequence from being
> garbage collected, and the memory allocation bogs things down
> tremendously.
Ah, I noticed the
Steve,
Exactly the problem. As soon as I turned the SQL statements into
vectors that contained the SQL strings, everything worked. I was
still working on old sample code from prior to the changeover of
parameter to a SQL vector rather than string, and that was the Cast
Exception. Everything
I've tested that already, and it takes even longer for all but trivial
inputs, because rec now prevents the combinations sequence from being
garbage collected, and the memory allocation bogs things down
tremendously.
On Mon, Jan 26, 2009 at 10:26 AM, Jason Wolfe wrote:
>
>> Also, it's worth poin
> Also, it's worth pointing out that your newer version prints the
> combinations out in a non-standard order.
Good point ... I shouldn't have tried to avoid adding the "let":
(defn combinations "Take a seq of seqs and return a lazy list of
ordered combinations (pick 1 from each seq)"
[seq
>
> For simple inputs, the two approaches have similar performance. On
> complex inputs, my tests show the iterative version tends to run about
> twice as fast.
>
> Try running on an extreme input like:
> ["ACDFG" "A" "B" "C" "D" "E" "F" "ABCD" "G" "H" "I" "ABEG" "J" "K"
> "BCDE" "L" "ABCDG" "M"
Also, it's worth pointing out that your newer version prints the
combinations out in a non-standard order. I don't know whether people
should really rely on the order, but I think most people would expect
it to print out in the same order as a series of nested for loops.
--~--~-~--~~
Rich Hickey wrote:
>
>
> On Jan 25, 4:10 pm, Laurent PETIT wrote:
>> #- makes sense (CL didn't always make things the wrong way :-)
>>
>> And indeed, #; *could* break a lot of already existing editors for a while
>>
>
> Yes, the issues are:
>
> #; is bad for editors
>
> #- would be incompati
Hi,
Am 26.01.2009 um 18:15 schrieb gun43:
(defmacro deftarget [sym doc & forms]
(let [has-run-fn (gensym "hr-" ) reset-fn (gensym "rf-" )]
`(let [[~has-run-fn ~reset-fn once-fn#] (runonce (fn [] ~...@forms))]
(def
~(with-meta
sym
{:doc doc :has-run-fn has-run-fn :reset-fn reset-fn})
On Jan 26, 11:15 am, Cosmin Stejerean wrote:
> On Mon, Jan 26, 2009 at 6:34 AM, Rich Hickey wrote:
>
> > On Jan 25, 4:10 pm, Laurent PETIT wrote:
> > > #- makes sense (CL didn't always make things the wrong way :-)
>
> > > And indeed, #; *could* break a lot of already existing editors for a
>
2009/1/26 Laurent PETIT
> 2009/1/26 gaetan
>
>> On 26 jan, 13:29, Laurent PETIT wrote:
>> > Hello Gaetan,
>> >
>> > Thanks for the shared code. I think that for a first version in
>> clojuredev,
>> > I'll too just implement the full builder, and wait for performance
>> problems
>> > before wri
While trying to understand the doubly indented lines in the following
definition from "Programming Clojure" by Stuart Halloway:
(defmacro deftarget [sym doc & forms]
(let [has-run-fn (gensym "hr-" ) reset-fn (gensym "rf-" )]
`(let [[~has-run-fn ~reset-fn once-fn#] (runonce (fn [] ~...@forms))
Thanks, Brian,
It looks like there's a problem with the arguments to with-query-
results. I recently changed with-query-results to accept/expect the
query as a vector containing a string and params rather than just a
string. Here's a correct call to with-query-results for the currently
che
On Mon, Jan 26, 2009 at 6:34 AM, Rich Hickey wrote:
>
>
>
> On Jan 25, 4:10 pm, Laurent PETIT wrote:
> > #- makes sense (CL didn't always make things the wrong way :-)
> >
> > And indeed, #; *could* break a lot of already existing editors for a
> while
> >
>
> Yes, the issues are:
>
> #; is bad
Steve,
Thanks for the reply, here is the error stack trace I retrieved
when running the code from clojure.contrib.sql. The actual function I
was running was "db-read", and the stack trace can be found at
http://clojure.pastebin.com/f660e0aac .
Thanks,
Brian
On Jan 26, 10:25 am, "Stephen C. Gi
Hi Brian,
Could you please paste a copy of the stack trace for the
ClassCastException you're seeing to http://clojure.pastebin.com and
post the URL for it here?
If you're driving your program at the repl, you can get a stack trace
from the most recent exception with:
(.printStac
I have been able to connect up clojure and my SQL Server 2005 server,
using the sample code include with clojure-contrib, at least in terms
of connecting, and responding to command like CREATE TABLE and INSERT
INTO. However, whenever I use the commands to access the tables and
pull back results (
2009/1/26 gaetan
> On 26 jan, 13:29, Laurent PETIT wrote:
> > Hello Gaetan,
> >
> > Thanks for the shared code. I think that for a first version in
> clojuredev,
> > I'll too just implement the full builder, and wait for performance
> problems
> > before writing an incremental one (thus saving d
you didn't beat it to death. I learned something. I also got confused.
You identity implementation makes perfect sense. But even with your
explanation, I'm still lost as to how the contrib one works. Lucky for me
you brought this up so I can challenge myself to try to understand what's
going on
By request...
Here some screenshots showing the IntelliJ Plugin in action
http://code.google.com/p/clojure-intellij-plugin/wiki/PageName?ts=1232979185&updated=PageName
Enjoy
Peter
Laurent PETIT wrote:
> Hello,
>
> Could you place some screenshots in a wiki page ?
>
> I'm too lazy to install I
I used a couple of watchers to push model updates onto the EDT in a Swing
app; it 'just worked'. I haven't pushed the envelope on it but the
abstraction is clear and clean IMHO.
Tom
2009/1/26 Rich Hickey
>
>
>
> On Jan 25, 4:06 pm, Stuart Sierra wrote:
> > Hi Rich, all,
> >
> > Ever since t
cool. Thanks for the info about #{}. I'm glad I learned about that. To
learn even more, what is the reasoning behind that choice? I've seen the
sharp used for other things in clojure; is there a connection?
On Mon, Jan 26, 2009 at 1:36 AM, Meikel Brandmeyer wrote:
> Hi,
>
> Am 26.01.2009 um
On 26 jan, 13:29, Laurent PETIT wrote:
> Hello Gaetan,
>
> Thanks for the shared code. I think that for a first version in clojuredev,
> I'll too just implement the full builder, and wait for performance problems
> before writing an incremental one (thus saving development time for adding
> oth
On Jan 25, 4:06 pm, Stuart Sierra wrote:
> Hi Rich, all,
>
> Ever since the new implementation of watchers I've been itching to try
> out Cells again. It worked great for agents. I ran into a snag,
> though, when I tried to make cells out of refs. Here's an example.
>
> I make two refs:
>
>
On Jan 25, 3:50 pm, Chouser wrote:
> On Sun, Jan 25, 2009 at 9:46 AM, Jan Rychter wrote:
>
> > From what I understand, currently the only way is to get the root
> > node and then recreate the entire zipper structure. This seems
> > unnecessary.
>
> I think what you're asking for sounds very re
On Jan 26, 3:20 am, Konrad Hinsen wrote:
> On 25.01.2009, at 21:33, Rich Hickey wrote:
>
> Something else that would be nice for implementing generators and
> thus streams is Scheme-style continuations. That would permit to
> write generators like in Python, as loopy code with "yield" calls
>
On Jan 26, 3:20 am, Konrad Hinsen wrote:
> On 25.01.2009, at 21:33, Rich Hickey wrote:
>
> > Looks interesting. I made AStream.Iter an IFn, so you can try that.
>
> Thanks! It works fine, the changes to stream-utils are checked in.
>
> There is just one situation that still requires a wrapper:
On Jan 25, 4:10 pm, Laurent PETIT wrote:
> #- makes sense (CL didn't always make things the wrong way :-)
>
> And indeed, #; *could* break a lot of already existing editors for a while
>
Yes, the issues are:
#; is bad for editors
#- would be incompatible with CL's #-, and couldn't be upgrade
Hello Gaetan,
Thanks for the shared code. I think that for a first version in clojuredev,
I'll too just implement the full builder, and wait for performance problems
before writing an incremental one (thus saving development time for adding
other functionalities right now).
BUT I think I'll not f
Thank you very much !
2009/1/26 gaetan
>
>
> On 23 jan, 20:57, Laurent PETIT wrote:
> > OK, I understand better now, I think.
> >
> > Did you experience the problems you have exposed ? Or is it an
> anticipation
> > of problems ?
> >
>
> Yes I directly experience the problem when I first implem
On 23 jan, 20:57, Laurent PETIT wrote:
> OK, I understand better now, I think.
>
> Did you experience the problems you have exposed ? Or is it an anticipation
> of problems ?
>
Yes I directly experience the problem when I first implement a Clojure
REPL inside Eclipse and do not have access to s
Chouser writes:
> On Sun, Jan 25, 2009 at 9:46 AM, Jan Rychter wrote:
>> From what I understand, currently the only way is to get the root
>> node and then recreate the entire zipper structure. This seems
>> unnecessary.
>
> I think what you're asking for sounds very reasonable.
What do I do
Christophe Grand writes:
> Jan Rychter a écrit :
>> I think zip/down has a bug. It effectively does (when (children loc)
>> ...), and since in Clojure empty list isn't false, it ends up adding
>> nodes in my tree.
>>
>> Shouldn't it check for (when-not (empty? (children loc)) ...) ?
>>
> The c
On 25.01.2009, at 21:33, Rich Hickey wrote:
> Looks interesting. I made AStream.Iter an IFn, so you can try that.
Thanks! It works fine, the changes to stream-utils are checked in.
There is just one situation that still requires a wrapper: it is not
possible to make a stream directly from a s
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