Hello,
Is it possible for my code to "subscribe" to events of type
"namespace change" which would inform of deltas on top level
namespaces :
- added symbol
- removed symbol
- changed root var binding of a symbol
Indeed, I'm currently implementing a little "namespace browser" View
for clojuredev
Hey,
I'm trying to run my first Clojure example
user=> (defn hello [name] (str "Cool! " name))
#'user/hello
user=> (hello "Google")
"Cool! Google"
user=> (hello "Wicket")
"Cool! Wicket"
user=> (str *1)
"Cool! Wicket"
user=> (str *2)
"Cool! Wicket"
Isn't (str *2) supposed to return "Cool! Google"
By the time you evaluated *2, the second most recent result was what
it showed you. All top level evaluations count.
In short, you were Heisenberged.
--Steve
On Jan 14, 2009, at 3:59 AM, HB wrote:
>
> Hey,
> I'm trying to run my first Clojure example
>
> user=> (defn hello [name] (str "Cool
Here's an example of *1 *2 *3
1:1 user=> (str "gavin")
"gavin"
1:2 user=> (str "teri")
"teri"
1:3 user=> (str "brian")
"brian"
1:4 user=> (str-join " " [*1 *2 *3])
"brian teri gavin"
On Wed, Jan 14, 2009 at 2:29 AM, Stephen C. Gilardi wrote:
>
> By the time you evaluated *2, the second most rec
I didn't get you, would you please hold my hand and walking me as you
explain line by line what is happening in my code?
On Jan 14, 11:29 am, "Stephen C. Gilardi" wrote:
> By the time you evaluated *2, the second most recent result was what
> it showed you. All top level evaluations count.
>
>
Hi all.
I am trying to figure out what the effect of the agent-function is on
the efficiency of concurrency. Here is something I do not really
understand. I've a fibonacci function and a simple multiplication,
both are wrapped in their respective dotimes 100k loop.
However, on this 4core machine
On Jan 13, 11:35 am, Rock wrote:
> I've added some info regarding the backquote expansion mechanism in
> the Reader section here:
>
> http://en.wikibooks.org/wiki/Learning_Clojure#The_Reader
>
> I tried to answer the author's question regarding the possible
> expansion order in nested backquote
On Wed, 14 Jan 2009 02:47:23 -0800 (PST)
HB wrote:
>
> I didn't get you, would you please hold my hand and walking me as you
> explain line by line what is happening in my code?
the simple way to work it out is to count up from where you are running
the code, so if you use *2, count up to see
Hi all,
I realised today that my "work" machine still has the old Sourceforge
version of clojure-contrib but when I try to get the latest version from
google-code it falls over - most likely due to a proxy:
>svn checkout http://clojure-contrib.googlecode.com/svn/trunk/clojure-contrib
svn: REPORT
Lets say that the result of each method invocation will be saved in a
stack.
The stack now contains, Google and Wicket
When I run (str *1) , I will get the last item in the stack which it
is "Wicket" and the result of the method invocation iteself (which it
is also "Wicket") will be pushed into th
On Wed, 14 Jan 2009 04:15:18 -0800 (PST)
HB wrote:
>
> Lets say that the result of each method invocation will be saved in a
> stack.
> The stack now contains, Google and Wicket
> When I run (str *1) , I will get the last item in the stack which it
> is "Wicket" and the result of the method inv
Hi all,
I managed to make this work by first making a clj script as instructed
here:
http://en.wikibooks.org/wiki/Clojure_Programming/Getting_Started
(thanks, great stuff!)
But there is still one small thing:
Is there an elegant way to "unwrap" the passed command line arguments?
And is there any
is that just for fun or can it be used in programs? HB, how'd you even
learn about that so fast? do I suck at reading?
On Wed, Jan 14, 2009 at 7:20 AM, Martin Wood-Mitrovski
wrote:
>
> On Wed, 14 Jan 2009 04:15:18 -0800 (PST)
> HB wrote:
>
> >
> > Lets say that the result of each method invoca
>> is that just for fun or can it be used in programs?
Consider it a shenanigan :)
>> HB, how'd you even learn about that so fast? do I suck at reading?
I'm reading the beta version of "Programming Clojure"
;
Am I doing fine Stu? :D
On Jan 14, 2:31 pm, e wrote:
> is that just for fun or can it
Hi folks,
I'm almost there.
My small script:
--
#! /usr/bin/env clj
(defn somefunc [& args]
(println "somefunc!" args))
(defn main [& args]
(somefunc args))
; Only run the application automatically if run as a script,
; not if loaded in a REPL with load-file.
(when *command-line-args*
On Jan 13, 4:56 pm, "Robert Pfeiffer"
wrote:
> Hello everybody,
>
> this patch implements a pipe-delimited syntax for symbols. The Reader
> parses |this symbol| and one symbol. Symbols containing clojure syntax
> are printed in this form, so they can be printed and read in again.
>
> example: (
I did the same thing after the switch. Then I read the directions
more carefully: http://code.google.com/p/clojure-contrib/source/checkout.
---
# Non-members may check out a read-only working copy anonymously over
HTTP.
svn checkout http://clojure-contrib.googlecode.com/svn/trunk/ clojure-
cont
2009/1/14 Mark Feeney
>
> (no /clojure-contrib on the end of the URL now)
>
Thanks for your reply Mark but I don't get what you mean. Can you elaborate?
You say "no /clojure-contrib on the end of the URL" but it's not on there
anyway. The url is exactly as it is on the google-code checkout pa
I was just referring to the svn command you posted in your original
message:
> svn checkout http://clojure-contrib.googlecode.com/svn/trunk/clojure-contrib
What it should be is:
svn checkout http://clojure-contrib.googlecode.com/svn/trunk/ clojure-
contrib
(note the space at the end before clo
On Wed, Jan 14, 2009 at 1:59 PM, Rich Hickey wrote:
>
> I am interested in symbols with arbitrary names,
>
Why is this interesting?
--
Venlig hilsen / Kind regards,
Christian Vest Hansen.
--~--~-~--~~~---~--~~
You received this message because you are subscribe
Hi Aria,
Actually, I am just in the process of writing up the install
instructions. Watch this space!
aria42 wrote:
> Did you ever get around to posting the notes on getting the IntelliJ
> plugin to work? I sorely would love IDE support for Clojure in either
> Eclipse or IntelliJ. Is the Inte
On Jan 14, 8:44 am, Mark Feeney wrote:
> I was just referring to the svn command you posted in your original
> message:
>
> > svn checkouthttp://clojure-contrib.googlecode.com/svn/trunk/clojure-contrib
>
> What it should be is:
>
> svn checkouthttp://clojure-contrib.googlecode.com/svn/trunk/clo
2009/1/14 Rich Hickey
> I think the salient difference is http, not https, for non-members.
Hi Rich,
The point is that I could use https on Sourceforge to get around the proxy
issue.
I've had the same problem before when using SVN for Clojure (sourceforge)
and assembla (a personal repos). W
2009/1/14 Mark Feeney
>
> I was just referring to the svn command you posted in your original
> message:
>
> > svn checkout
> http://clojure-contrib.googlecode.com/svn/trunk/clojure-contrib
>
> What it should be is:
>
> svn checkout http://clojure-contrib.googlecode.com/svn/trunk/ clojure-
> con
For those interested in numeric performance, Clojure lets you use
arrays of primitives, has primitive math support, primitive local
support, and has higher-level macros for dealing with them (amap,
areduce) which can also serve as models for your own. You can also
use :inline to wrap arithmetic pr
Hi all,
I'm new to Clojure and new to Lisp but not new to software
development. And I feel very dumb for having to ask what seems like a
very noob question but I can't seem to figure this out.
If I want to load a source file into REPL it seems that I should be
able to do this:
(load-file "file
This works for me in every configuration I could think of (at worst I get
java.io.FileNotFoundException).
Are you running a plain cmd prompt? (not MSys or cygwin)
How did you launch clj?
Rgds.
Tom
2009/1/14 Onorio Catenacci
>
> Hi all,
>
> I'm new to Clojure and new to Lisp but not new to
Rich, I must apologize-- I worded my question *far* too harshly. I knew
it as I pushed the send button. I am a huge fan of Clojure, and plan to
use it as often as possible. My question was really looking for hints,
so that I can use it in more places. You gave me a great one, thanks!
Is th
I'm an IntelliJ 8 user and I can test the plugin on my own machine if
this helps the plugin's development.
On Jan 14, 3:52 pm, Peter Wolf wrote:
> Hi Aria,
>
> Actually, I am just in the process of writing up the install
> instructions. Watch this space!
>
> aria42 wrote:
> > Did you ever get a
Hello,
I'm trying to create a list of agents and a function called next-agent that
always gives me the next agent and restarts at the beginning when the list
is exhausted. For my purposes the agent is serving as a thread that will do
some work. I don't much care about its value at this time.
I'
On Jan 14, 9:56 am, "Tom Ayerst" wrote:
> This works for me in every configuration I could think of (at worst I get
> java.io.FileNotFoundException).
> Are you running a plain cmd prompt? (not MSys or cygwin)
> How did you launch clj?
>
Hi Tom,
Thanks for the response. I'm running Repl fro
I found my problem. I wasn't calling agents. I was doing this.
=> (defn next-agent [] (nth agents (next-counter)))
and should have been doing this.
=> (defn next-agent [] (nth (agents) (next-counter)))
Still, I would like feedback. Is there a cleaner way to do this?
Thanks.
Justin
On Wed,
On Wed, Jan 14, 2009 at 8:16 AM, Paul Drummond wrote:
> 2009/1/14 Rich Hickey
>
>> I think the salient difference is http, not https, for non-members.
>
>
> Hi Rich,
>
> The point is that I could use https on Sourceforge to get around the proxy
> issue.
>
> I've had the same problem before when
For more than just experimentation with one file, you might also want
to look into lib packaging so that you can 'require' or 'use' rather
than have to go down to the level of 'load' or 'load-file'. Quick
summary, if your file has namespace "foo.bar" then package it in file /
foo/bar.clj (relative
On 14 Jan., 13:59, Rich Hickey wrote:
> [...] the toString in the patch is quite
> inefficient.
Because symbols are immutable, they could cache the printable
representation in an extra field, but this would double the space
occupied by them.
> Second, it would be better not to replicate the lo
On Mon, Jan 12, 2009 at 10:26 PM, .Bill Smith wrote:
>
> The gen-class documentation at http://clojure.org/API#toc248 has a
> minor typo: the description of the :state keyword begins at the end of
> the :factory paragraph instead of beginning a new paragraph. Not a
> big deal but it makes the :s
2009/1/14 Cosmin Stejerean
> You could try moving to something like git and checking out the source code
> from one of the unofficial mirrors, like http://*github*.com/kevinoneill/*
> clojure*
>
Works perfectly - thanks! I considered trying git but didn't have a clue
where to look for mirrors -
Glad to help.
If you haven't found it yet the wiki is very helpful, especialyy:
http://en.wikibooks.org/wiki/Clojure_Programming/Getting_Started
If you want to spend some money Stuart Halloway's book is excellent
http://www.pragprog.com/titles/shcloj/programming-clojure
Cheers
Tom
2009/1/14 On
Also a newbie wrestling with agents.. but perhaps you could do
something with lazy-cons or cycle? An endless cycle of your agents:
(def running true)
(while running
(doseq [a (cycle agents)] (send-off a somefunction))
On Jan 14, 4:48 pm, Justin Johnson wrote:
> I found my problem. I wasn
On Tue, Jan 13, 2009 at 5:54 PM, Timothy Pratley
wrote:
>
> I'm not sure how to "cpu frequency set
> to not change" or how significant that is on my results.
I was afraid that was too vague a reference, sorry.
My laptop usually slows down the CPU when its idle or nearly so.
Specifically, the li
On Jan 14, 12:20 pm, "Mark H." wrote:
> I humbly propose that folks shouldn't complain about Clojure being
> slow for their apps until they have at least one of the following:
>
> 1. A targeted benchmark for an important bottleneck in their
> application, implemented in both Clojure and the cur
On Wed, Jan 14, 2009 at 3:07 AM, lpetit wrote:
>
> Hello,
>
> Is it possible for my code to "subscribe" to events of type
> "namespace change" which would inform of deltas on top level
> namespaces :
> - added symbol
> - removed symbol
> - changed root var binding of a symbol
>
> Indeed, I'm cur
Hi,
Earlier Stuart Sierra replied as follows:
Hi Patrick,
Here's one way to do it:
(defn new-person [name]
(ref {:name name, :friends #{}}))
(defn are-friends [a b]
(dosync
(commute a assoc :friends (conj (:friends @a) b))
(commute b assoc :friends (conj (:friends @b) a
(def bi
Asbjxrn,
One thing that leaps out to me performance-wise is the 3 nested loops
(dotimes, dotimes, loop/recur). Whatever's inside the inner loop is
getting run a lot of times! General advice about reducing loop depth
and computation required inside the innermost loop aside... have you
looked at cl
There's no event mechanism to monitor namespace changes. I accomplish
this by taking a snapshot before and after any possible namespace-
changing execution, using ns-map. Not as efficient as an event
callback, but I haven't had any performance issues (map lookups are
plenty fast for me).
You can
(:name @(first (:friends @bill)))
You need to dereference before trying to access name.
David
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
"Clojure" group.
To post to this group, send email to clojure@googlegroup
Here's an update on syntax-quote in the WikiBook (Reader Macro
section):
The most complicated reader macro is syntax-quote, denoted by ` (back-
tick). When used on a symbol, syntax-quote is like quote but the
symbol is resolved to its fully-qualified name:
`meow; (quote cat/meow) ...assuming
On Wed, Jan 14, 2009 at 6:07 AM, Rock wrote:
>
[snip]
>
> #^{:ack bar} foo ; (clojure/with-meta foo {:ack bar})
This is not correct, and a common misunderstanding.
"#^ is not sugar for with-meta. It does not expand into a call to
with- meta. They are not equivalent."
http://groups.google.
On Wed, Jan 14, 2009 at 5:58 AM, Grunde wrote:
>
> Now, it these some elegant way to parse and use the passed command
> line arguments in my program? Is there any lib like Ruby/Pythons
> optparse to assist parsing of command line arguments?
There is clojure.contrib.command-line
I don't know if
Thanks David.
-sun
On Jan 14, 11:55 am, David Nolen wrote:
> (:name @(first (:friends @bill)))
>
> You need to dereference before trying to access name.
>
> David
--~--~-~--~~~---~--~~
You received this message because you are subscribed to the Google Groups
"C
On 14 Gen, 17:58, Chouser wrote:
> On Wed, Jan 14, 2009 at 6:07 AM, Rock wrote:
>
> [snip]
>
> > #^{:ack bar} foo ; (clojure/with-meta foo {:ack bar})
>
> This is not correct, and a common misunderstanding.
>
> "#^ is not sugar for with-meta. It does not expand into a call to
> with- meta
(map #(println %) [1 2 3 4]) prints 1 2 3 and 4
But what if the vector element is a hash with
[ {:a 1 :b 11} {:a 2 :b 22} {:a 3 :b 33}]?
can we dereference :a using %1, like (:a %1)?
If not, any alternative? maybe destructuring or something?
thanks
-sun
--~--~-~--~~~-
On Jan 14, 10:50 am, Greg Harman wrote:
> For more than just experimentation with one file, you might also want
> to look into lib packaging so that you can 'require' or 'use' rather
> than have to go down to the level of 'load' or 'load-file'. Quick
> summary, if your file has namespace "foo.bar
On Tue, Jan 13, 2009 at 12:39 PM, samppi wrote:
>
> Recently, I asked how to make a function evaluate its arguments lazily
> (http://groups.google.com/group/clojure/browse_thread/thread/
> cd01ef39c2b62530), and I was given a good solution: use Delay objects
> (with the delay and force functions)
It doesn't make sense to mix map and println. If you want side
effects, use doseq instead of map:
(doseq [{a :a} [ {:a 1 :b 11} {:a 2 :b 22} {:a 3 :b 33}]] (println a))
{:a 1, :b 11}
{:a 2, :b 22}
{:a 3, :b 33}
If you don't want side effects, use str instead of println (you could
also use id
Is there a way to have args expanded to the actual arguments, not an
ArraySeq? I need the actual args to pass to a multimethod so it knows how
to dispatch appropriately.
Code similar to this
(send-off (next-agent) (fn [v & args] (somefn args)) arg1 arg2 arg3)
Give me an error like this.
...
Ca
I also think it's unhelpful for codebases to stray further from the
builtin functions than needed, because it makes that code harder to
read as well. So I will consider each of these more carefully.
My comments below are of course highly influence by my personal
experiences using Clojure. I'm q
On Wed, Jan 14, 2009 at 12:11 AM, GS wrote:
>
> On Jan 13, 7:17 pm, "Nick Vogel" wrote:
>> seq returns nil when a collection has no items. According to the
>> documentation for empty?, empty? is the same as (not (seq coll)) so you
>> should use seq for expressing the opposite of empty?
>
> Acco
Steve,
Thanks much for your work. The new with-query-results seems to work
quite well.
Your timing is impeccable with this set of changes: I had just
finished hacking out a (much uglier) version of update-values as well.
(I'll switch over to using the clojure.contrib.sql versions now for a
numbe
Hi Justin,
Use apply:
(send-off (next-agent) (fn [v & args] (apply somefn args)) arg1 arg2
arg3)
Cheers,
Stuart
> Is there a way to have args expanded to the actual arguments, not an
> ArraySeq? I need the actual args to pass to a multimethod so it
> knows how to dispatch appropriately.
Ah, that's right! Thank you. I'm having a hard time thinking functionally.
On Wed, Jan 14, 2009 at 12:31 PM, Stuart Halloway wrote:
>
> Hi Justin,
>
> Use apply:
>
> (send-off (next-agent) (fn [v & args] (apply somefn args)) arg1 arg2
> arg3)
>
> Cheers,
> Stuart
>
> > Is there a way to have a
Thanks!
I'll have a look at clojure.contrib.command-line. I don't need
anything super-powerfull, just something that make it easy to define
and parse command line arguments in the "normal manner".
Sorry about my previous double post :(
Grunde
On Wed, Jan 14, 2009 at 6:00 PM, Chouser wrote:
>
On Tue, Jan 13, 2009 at 8:08 PM, Perry Trolard wrote:
>
> Hi Chouser & list,
>
> I like clojure.contrib.command-line -- thanks for it! -- but I wanted
> to be able to specify multiple forms for an option, e.g. --help, -h,
> -?, etc. Here (in the Files section)
>
> http://bit.ly/fIVH
>
> is a pa
On Jan 14, 8:27 am, Asbjørn Bjørnstad wrote:
> Anyway, here is a core part of the algorithm. It's a diffusion
> step, this gets called 3 times and in total this takes up more than
> one second of cpu time on my machine which makes framerates very
> slow. If anyone got any improvements I'd be hap
OK thank you both Chris & Mike for your answer.
What I've done for the moment is similar to what Mike did: at any
place where there is a chance for something to change namespaces, I
reload a new snapshot (and I throw the old).
Registering watchers for Vars seems very interesting, I'll
investigat
On Jan 13, 12:39 pm, samppi wrote:
> Recently, I asked how to make a function evaluate its arguments lazily
> (http://groups.google.com/group/clojure/browse_thread/thread/
> cd01ef39c2b62530), and I was given a good solution: use Delay objects
> (with the delay and force functions).
>
> I wante
On Wed, Jan 14, 2009 at 11:27 AM, Asbjørn Bjørnstad wrote:
>
> Anyway, here is a core part of the algorithm. It's a diffusion
> step, this gets called 3 times and in total this takes up more than
> one second of cpu time on my machine which makes framerates very
> slow. If anyone got any improve
On Wed, Jan 14, 2009 at 6:00 AM, bOR_ wrote:
>
> However, on this 4core machine, the fib behaves as I would expect when
> I scale up the number of threads, while the multiplication barely
> seems to benefit from the 4 cores. The only difference I see between
> the two functions is that the fib is
For a completely different way of doing this, you could certainly use
GPGPU programming to speed this up.
This section:
(aset diffused-grid c
(float (/ (+ (aget grid c)
(* a
(+ (+ (aget diffused-gr
On Jan 14, 11:27 am, Asbjørn Bjørnstad wrote:
> On Jan 14, 12:20 pm, "Mark H." wrote:
>
>
>
> > I humbly propose that folks shouldn't complain about Clojure being
> > slow for their apps until they have at least one of the following:
>
> > 1. A targeted benchmark for an important bottleneck i
I agree with Chouser that an uncluttered library is a great virtue. I
too have been turned off by CL in part because of the enormous number
of subtly distinct built-in functions. I'm partial to Scheme, though,
so maybe I'm best viewed as a fanatic on this point. :-)
That said, it does seem pleasa
Good, anyway it was only a relatively minor modification of insert-
values function. I'm sending my contributor agreement today, hoping to
contribute further in a near future. Thanks
On Jan 14, 12:13 am, "Stephen C. Gilardi" wrote:
> On Jan 11, 2009, at 10:42 AM, Stephen C. Gilardi wrote:
>
> >
On Jan 14, 10:10 am, Chouser wrote:
> I also think it's unhelpful for codebases to stray further from the
> builtin functions than needed, because it makes that code harder to
> read as well. So I will consider each of these more carefully.
Thanks for your detailed response! To keep this manag
Hi Chouser,
Thanks for checking out the patch.
> It's a good idea. Any sane way to allow the single-letter variety to
> be specified with a single leading dash, instead of a double-dash?
Single or double dashes should work for both kinds of options (long-
or short-style), based on your code. T
> > So, either:
>
> > 1. My experiment was wrong, and seq? is not a valid stand-in
> > for seq in the above code.
>
> Right on the first try! :-)
Well, that's something :)
> user=> (seq-chunk 2 [1 2 3 4 5])
> ((1 2) (3 4) (5))
> user=> (seq?-chunk 2 [1 2 3 4 5])
> nil
>
> This is because a
Congratulation, this is quite amazing to see Clojure mature so fast
and already working in production system. Sorry but I need to get back
at finding that damn bug in a 10 years old VB legacy application :-(
On Jan 13, 10:38 am, Luc Prefontaine
wrote:
> Hi everyone,
>
> as of yesterday pm, Cloju
> Sigh, I wish the API docs were more helpful in this case.
>
> clojure.core/seq?
> ([x])
> Return true if x implements ISeq
>
> It's asking a lot from me to know whether vectors implement ISeq.
If you don't know, you can always just ask the language :)
user> (ancestors (class [1 2 3]))
#{cloju
On Wed, Jan 14, 2009 at 4:26 PM, Jason Wolfe wrote:
>
> user> (contains? (ancestors (class [1 2 3])) clojure.lang.ISeq)
> false
Also there's 'isa?':
user=> (isa? (class [1 2 3]) clojure.lang.ISeq)
false
user=> (isa? (class (seq [1 2 3])) clojure.lang.ISeq)
true
And 'instance?':
user=> (instan
On Jan 14, 2:57 pm, Rich Hickey wrote:
> On Jan 13, 12:39 pm, samppi wrote:
>
>
>
> > Recently, I asked how to make a function evaluate its arguments lazily
> > (http://groups.google.com/group/clojure/browse_thread/thread/
> > cd01ef39c2b62530), and I was given a good solution: use Delay objec
On Tue, Jan 13, 2009 at 8:12 PM, GS wrote:
>
> On Jan 14, 1:12 am, Timothy Pratley wrote:
>> I've written small wiki article which dives right into the look and
>> meaning of common Clojure constructs with examples. Personally I find
>> I learn best by examples and when starting out they were ha
On Jan 14, 2009, at 1:26 PM, Greg Harman wrote:
Thanks much for your work. The new with-query-results seems to work
quite well.
You're quite welcome. I'm glad to hear it!
Your timing is impeccable with this set of changes: I had just
finished hacking out a (much uglier) version of update-va
You're my personal Santa Claus today! :-)
Confirmed present and working for both insert and update, using a 2
field where clause.
On Jan 14, 5:14 pm, "Stephen C. Gilardi" wrote:
> I've added update-or-insert-values. I'd appreciate hearing how it
> works for you.
--~--~-~--~~
Will someone please help me understand what I'm doing wrong?
The code below is *supposed* to do the following.
1) Checkout the top level directory of a Subversion repository with empty
depth.
2) Update the project directories (the ones right under the root of the
repository) with depth immediates
On Jan 14, 5:02 pm, Chouser wrote:
> On Wed, Jan 14, 2009 at 4:26 PM, Jason Wolfe wrote:
>
> > user> (contains? (ancestors (class [1 2 3])) clojure.lang.ISeq)
> > false
>
> Also there's 'isa?':
>
> user=> (isa? (class [1 2 3]) clojure.lang.ISeq)
> false
> user=> (isa? (class (seq [1 2 3])) clo
Hey Randall, Justin, Aria, HB, and all other IntelliJ enthusiasts
Pre-Alpha of IntelliJ plugin for the Clojure is open for testing...
Plugin currently provides editing with syntax coloring, syntax error
high-lighting, folding, and brace matching. Also provides run
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Your omission of (apply await agents) is allowing the program to
terminate before all your created threads finish I think.
If I might further comment, your threading model is not quite right to
me...
You've created 5 agents and then used them to 'send-off' as many
threads as there are projects.
I
Hi Chris
> What exactly are you trying to measure?
I think what Boris is expecting is that for 4 CPUs, running 1,2,3,4
equal work threads will take the same amount of time.
This is true when he calls loopfib, but not true when he calls
loopmult:
threads: 1
"Elapsed time: 205.458949 msecs"
"Ela
On Jan 14, 12:29 pm, chris wrote:
> For a completely different way of doing this, you could certainly use
> GPGPU programming to speed this up.
> ...
> You want this for a game engine anyway; do it in opengl or directx
> using shaders.
I recommend OpenCL or CUDA instead for less pain ;-) (Well,
>>> user> (= '(1) [1])
>>> true
>>
>>> user> (= '() [])
>>> false
>>
>> Hm. That does seem rather odd.
>
> Fixed - svn 1208.
Oh, I always assumed this was intentional ... I guess I never tried
switching the order of arguments. Well, that makes a bit more sense
then :).
--~--~-~
I've already posted here [1] and on the issue board [2] about
hashing. In particular, .hashCode for seqs/colls break the Java
contract that whenever (.equals x y), (= (.hashCode x) (.hashCode
y)). (let x = [1] and y = (seq [1])). As I've mentioned earlier, I
hope that eventually .hashCode and .
On Jan 14, 12:01 am, GS wrote:
> On Jan 14, 2:27 pm, "Mark Engelberg" wrote:
>
> > I also find the choice of some/not-any? as opposites to be hard to
> > remember. I'd rather it be some/not-some? or any/not-any?
>
> I think some and any? both have their place.
>
> (let [foo (some prime? numseq
On Jan 15, 3:38 am, "Mark H." wrote:
> On Jan 14, 8:27 am, Asbjørn Bjørnstad wrote:
>
> > Anyway, here is a core part of the algorithm. It's a diffusion
> > step, this gets called 3 times and in total this takes up more than
> > one second of cpu time on my machine which makes framerates very
On Jan 15, 8:42 am, "Mark H." wrote:
> On Jan 14, 12:29 pm, chris wrote:
>
> > For a completely different way of doing this, you could certainly use
> > GPGPU programming to speed this up.
> > ...
> > You want this for a game engine anyway; do it in opengl or directx
> > using shaders.
>
> I re
On Jan 13, 8:04 am, Mark P wrote:
> > A macro cannot depend on runtime information. A macro is a function
> > that is called at compile time, its argument is an expression (as
> > written by the programmer, or as returned by another macro), and its
> > result is a modified expression. There
On Jan 15, 4:33 am, Rich Hickey wrote:
> Try this (and make sure you are using -server):
>
> (defn diffuse [grid diff-ratio dt]
> (let [a (float (* dt diff-ratio grid-size grid-size))
> a4-1 (float (+ 1 (* 4 a)))
> grid #^floats (deref grid)
> diffused-grid #^floats (ma
Makes sense, but (#{:a :b :c} :b) doesn't return 'true', it
returns :b. So it's not really acting like an object to boolean
mapping. Doesn't much matter, though.
By the way, I'd like to see map-map in the core.
-Ethan
On Jan 12, 5:30 pm, Stuart Sierra wrote:
> A set is, in a sense, a functio
On Wed, Jan 14, 2009 at 4:03 PM, Jason Wolfe wrote:
>
> To keep this manageable, I'll cut out the parts where I don't think
> comments are needed.
Good idea!
>> > (defn concat-elts "Lazily concatenate elements of a seq of seqs." [s]
>> > (when (seq s) (lazy-cat (first s) (concat-elts (rest s))
On Wed, Jan 14, 2009 at 10:23 PM, Ethan Herdrick wrote:
>
> By the way, I'd like to see map-map in the core.
If you're referring to Jason Wolfe's suggested function, I think you
may be pretty satisfied with (into {} (map ...)) instead.
--Chouser
--~--~-~--~~~---~--~
A thought: if you end up using the patch, I gave the 'justify'
function an inappropriate name. It should be 'align' or 'align-cols'
or some such. (No one in their right mind would justify text on the
console!)
Perry
On Jan 14, 3:16 pm, Perry Trolard wrote:
> Hi Chouser,
>
> Thanks for checking
Here's a trivial patch that I've found useful. After catching an
uncaught exception in a test, set! *e so you can examine the stack
trace afterward.
===
--- src/clojure/contrib/test_is.clj (revision 314)
+++ src/clojure/contrib/t
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