It was added here:
http://github.com/richhickey/clojure/commit/d0e1eef26abd215668ed27357839b2bba4ba095c
Not automatically overflowing numbers is a Good Thing. For example:
http://seclists.org/fulldisclosure/2010/Mar/447
Though the behavior now deviates from the java casting behavior where
the
Hi,
On Mar 24, 2:22 am, Douglas Philips d...@mac.com wrote:
would (let [s1 (first seq1)
s1tail (rest seq1)] ...)
be any better? rest says it calls seq on its argument, and that would
force as well?
Hmmm... So only things like map are able to realize first without
realizing
Like Per says, if you want to compile Clojure to LLVM code that's
probably a huge project, have you looked at VMKit? I think that's a
JVM/CLR implementation based on LLVM, perhaps it could run Clojure?
If you just want to use LLVM from Clojure however, you can use my C
FFI clj-native with the C
On 23 Mar 2010, at 21:04, Robert Lally wrote:
Is there a technical reason that one should prefer the (.method
object) syntax over the (. object method) variant or is it purely a
style that the community has converged on?
It's purely style. You can easily verify that (.method object) is
On 24 Mar 2010, at 07:40, mac wrote:
If you just want to use LLVM from Clojure however, you can use my C
FFI clj-native with the C interface for LLVM. I actually made it
because I wanted to play around with LLVM but I never got around to
actually doing that again once I had a working version of
Hello
Mark Derricutt at Wed, 24 Mar 2010 09:30:26 +1300 wrote:
MD 1.3.2 is the latest version of the plugin and fixes some issues with the
replScript settings ( it actually continues to run the repl, and not
MD just exits - doh!)
Yes, I already fixed this in my repo and created pull request
On 23 Mar 2010, at 19:53, Lee Spector wrote:
I'm intrigued by what I've read here about labrepl, but can someone
tell me if it's possible that the lein installation step will mess
up my existing setup in any way?
I don't think so. Unless you have an existing script called lein on
your
I never said automatic overflowing is a good thing per se.
The problem is that the expectations set by hexadecimal notation are
violated. When I write 0xFF, I don't mean the abstract mathematical
number 255; I mean the number whose bit representation (e.g. one's
complement for signed integers)
Clarification of lettersoup:
JNI = java native interface, the C/C++ interface to java.
JNA = java native access, an API that aims to simplify java/C interop.
clj-native is built upon JNA and is at present a rather thin wrapper
so it's good to learn a bit about JNA to get the most out of clj-
2010/3/24 Konrad Hinsen konrad.hin...@fastmail.net:
On 23 Mar 2010, at 21:04, Robert Lally wrote:
Is there a technical reason that one should prefer the (.method object)
syntax over the (. object method) variant or is it purely a style that the
community has converged on?
It's purely style.
Thanks to all who reassured me on the non-interference of lein/labrepl with my
existing setup.
I did follow the labrepl getting started instructions, get it working, and see
that there's some great stuff in there. Very much appreciated and I may want to
use this if I teach Clojure in the
Hi Zmitro,
you should see kanjis being detected as you draw the strokes. Maybe
the app didn't re-layout properly, that's why you didn't see the kanji
panel on the right hand side. I changed the jar slightly, and if the
re-layout thing was the reason, it could be fixed now. if you still
only see a
Hi Lee,
Please note that Stuart added to the README the tutorial for Eclipse/ccw.
I wrote it so that if every step works as expected (it did with my own
tests), there is no pre-requisite but having a JVM on your machine :
no need to know/install Git on the command line, no need to
know/install
it looks like that code will suffice. Thanks!!
On Mar 23, 9:38 pm, Per Vognsen per.vogn...@gmail.com wrote:
I'm sure that code would be useful if he were looking for a slow
implementation of a slow algorithm. I believe he asked for an
optimized algorithm. An example might be Lenstra's
On 2010 Mar 24, at 2:39 AM, Meikel Brandmeyer wrote:
On Mar 24, 2:22 am, Douglas Philips d...@mac.com wrote:
would (let [s1 (first seq1)
s1tail (rest seq1)] ...)
be any better? rest says it calls seq on its argument, and that would
force as well?
Hmmm... So only things like map are
I wrote the following code to produce a lazy sequence of the triangle
numbers. (triangle numbers are the series of numbers: 1, 1+2, 1+2+3,
etc...)
(defn tri-nums []
prduce a lazy sequence of triangle numbers
(let [triangles (map #(range 1 %) (iterate inc 2))]
(map #(reduce + %)
On Mar 23, 4:13 pm, Stuart Halloway stuart.hallo...@gmail.com wrote:
The labrepl project (http://github.com/relevance/labrepl) is a
tutorial environment for learning Clojure.
...
(2) CounterClockwise integration: Ditto above but for Eclipse/
I followed the steps and successfully runned the
Hi,
On Mar 24, 2:21 pm, Glen Rubin rubing...@gmail.com wrote:
(loop [x 1 y (first (tri-nums))]
...
(recur (inc x) (first (rest (tri-nums
You call tri-nums twice. So you get fresh seqs each time. You have to
work on a single seq.
(loop [counter 1
tris(tri-nums)]
(let [t
On Mar 23, 10:18 pm, Rob Wolfe r...@smsnet.pl wrote:
Stuart Halloway stuart.hallo...@gmail.com writes:
The labrepl project (http://github.com/relevance/labrepl) is a
What about creating standalone ZIP file, which will contain
all necessary components: Clojure, Leiningem and Labrepl?
I
On Wed, Mar 24, 2010 at 8:21 PM, Glen Rubin rubing...@gmail.com wrote:
I wrote the following code to produce a lazy sequence of the triangle
numbers. (triangle numbers are the series of numbers: 1, 1+2, 1+2+3,
etc...)
(defn tri-nums []
prduce a lazy sequence of triangle numbers
(let
2010/3/24 Zmitro Lapcjonak idob...@gmail.com:
On Mar 23, 4:13 pm, Stuart Halloway stuart.hallo...@gmail.com wrote:
The labrepl project (http://github.com/relevance/labrepl) is a
tutorial environment for learning Clojure.
...
(2) CounterClockwise integration: Ditto above but for Eclipse/
I
On 24.03.2010, at 11:22, mac wrote:
With regards to copying of data, clj-native expects nio buffers to be
used as input where a native function requires a typed pointer. These
buffers can be allocated outside of the JVM heap specifically to avoid
copying. For example
On Mar 24, 3:53 pm, Laurent PETIT laurent.pe...@gmail.com wrote:
2010/3/24 Zmitro Lapcjonak idob...@gmail.com:
On Mar 23, 4:13 pm, Stuart Halloway stuart.hallo...@gmail.com wrote:
The labrepl project (http://github.com/relevance/labrepl) is a
tutorial environment for learning Clojure.
Cool !
2010/3/24 Zmitro Lapcjonak idob...@gmail.com:
On Mar 24, 3:53 pm, Laurent PETIT laurent.pe...@gmail.com wrote:
2010/3/24 Zmitro Lapcjonak idob...@gmail.com:
On Mar 23, 4:13 pm, Stuart Halloway stuart.hallo...@gmail.com wrote:
The labrepl project
I just tried starting it from a Windows box, and for some reason, the
kanjis are not displayed there. Maybe it's a font issue, not sure yet.
Will investigate.
On Mar 24, 9:06 pm, Eugen Dück eu...@dueck.org wrote:
Hi Zmitro,
you should see kanjis being detected as you draw the strokes. Maybe
On Mar 24, 2010, at 3:53 AM, Laurent PETIT wrote:
2010/3/24 Konrad Hinsen konrad.hin...@fastmail.net:
The original version (. object method) still could have an interest
where IDEs could guess the method names to propose based on what they
could infer from the object arg.
With the (.methodName
I am trying to start labrepl with emacs.
Labrepl is working nice, but I cant slime-connect :(
Have this message:
open-network-stream: make client process failed: connection
refused, :name, SLIME Lisp, :buffer, nil, :host, 127.0.0.1, :service,
4005
Could you tell me how to fix it ?
--
You
On 23 March 2010 22:43, Joel Martin nos...@martintribe.org wrote:
I'll know that this problem is solved when the Setup and Getting
Started sections of the main Getting Started page resemble this:
-
For debian and Ubuntu users:
apt-get install clojure
For Fedora and CentOS users:
On Tue, Mar 23, 2010 at 7:38 PM, Stuart Campbell
stuart.william.campb...@gmail.com wrote:
From JDK docs
(http://java.sun.com/j2se/1.5.0/docs/api/java/lang/ProcessBuilder.html#environment%28%29):
The behavior of the returned map is system-dependent. A system may not
allow modifications to
Help wanted:
(5) Out-of-box experience audit. Is the leiningen-based setup easy
enough? If not, please make something simpler (maybe shell scripts
that pull the libs from a download site?)
(6) Better windows instructions/integration.
Very nice! I'm looking at it now, on windows XP;
I can't think of many
cases where a downcast is used *and* the original value is expected to
ever be larger than the target type.
I can. Particularly when casting to a byte, I'm often more interested
in the bit pattern than the integer value. (Admittedly, sometimes
this is due to java API
This looks like the old type erasure problem - the returned map is of
a private class, so clojure looks for a public version of the put
method in one of the interfaces/base classes - but does an exact
comparison on parameter types, so put(String, String) doesn't match
put(Object, Object) and the
Thank you, Konrad. Unrolling the bit-or computations helped; total
time for 8,000,000 iterations was 1305 msecs.
Per, you are correct. The byte issue (0xFF out of range) is why I have
to include the mask. I think this is more Java's limitation than
anything. 0xFF is not a valid value for a byte
Hi Clojurians,
Clojure's STM seems great for maintaining consistent state on a single
machine with concurrent processes, but what about synchronizing state
across multiple computers with higher latency? I've been wondering a
lot lately how Google wave works considering all the significant
latency
Thanks a lot!
Is there way to do the same thing using 'doto'? e.g.
(doto (.environment pb) (.put Var1 myValue))
I can't figure out where to place #^Map hint...
On Mar 24, 5:19 am, Armando Blancas armando_blan...@yahoo.com wrote:
You want Clojure to treat 'env' as a Map instead of its
As far as I can tell, you're doing nothing wrong and just hitting a
bug in Clojure. Which is still in 1.2.0-master...
On Tue, Mar 23, 2010 at 11:43 AM, Konstantin Barskiy zuftw...@gmail.com wrote:
I'm trying to reproduce ProcessBuilder example from java documentation
Hi,
I think you want to use 'indexed' from clojure.contrib with your tri-nums to
get a lazy indexed sequence.
Tobias
On Wed, Mar 24, 2010 at 2:21 PM, Glen Rubin rubing...@gmail.com wrote:
I wrote the following code to produce a lazy sequence of the triangle
numbers. (triangle numbers are
Hi all,
I've been reading through clojure.core to see examples of fine clojure
style. One thing I've noticed is (what I consider) a weird notation
when parsing parameters for function. As an example, consider the
function juxt:
(defn juxt
Alpha - name subject to change.
Takes a set of
My impression from reading Remco van 't Veer's posts about his
experience running clojure on Android is that it tends to be slow in
general because introspection is expensive in Dalvik. So while you
can sprinkle typehints throughout your own code, you really don't want
to do that to the core, and
On Wed, Mar 24, 2010 at 11:59 AM, invis invi...@gmail.com wrote:
I am trying to start labrepl with emacs.
Labrepl is working nice, but I cant slime-connect :(
Have this message:
open-network-stream: make client process failed: connection
refused, :name, SLIME Lisp, :buffer, nil, :host,
Of course! I keep making stupid mistakes like thisarg!!!
On Mar 24, 9:28 am, Meikel Brandmeyer m...@kotka.de wrote:
Hi,
On Mar 24, 2:21 pm, Glen Rubin rubing...@gmail.com wrote:
(loop [x 1 y (first (tri-nums))]
...
(recur (inc x) (first (rest (tri-nums
You call
Why does ^#' get you the meta data?
http://clojure.org/special_forms
user= ^#'mymax
-{:name mymax,
:user/comment this is the best fn ever!,
I couldn't find it documented in http://clojure.org/reader. #' seems
to match Var-quote (#'), but why does ^ get you metadata when that
page uses
I'm not sure if I've found a bug or I'm just doing it wrong, or I'm
just trying to do something I shouldn't try to do. But I'm currently
having an issue when trying to set up a clojure appengine project.
you can see my offending code snippet here: http://gist.github.com/341873
but setting up the
The labrepl project (http://github.com/relevance/labrepl) is a
tutorial environment for learning Clojure.
...
(2) CounterClockwise integration: Ditto above but for Eclipse/
I followed the steps and successfully runned the labrepl with Eclipse
and CCW.
Good ! Which environment
On Wed, Mar 24, 2010 at 8:36 AM, Michael Richter ttmrich...@gmail.com wrote:
I don't know the process, but I'm willing to endure the tedium of packaging
clojure for Ubuntu (and by extension Debian) if this is the kind of thing
that can be a two-person job.
clojure and clojure-contrib are
Hi,
On Mar 24, 5:40 am, HiHeelHottie hiheelhot...@gmail.com wrote:
user= ^#'mymax
-{:name mymax,
:user/comment this is the best fn ever!,
I couldn't find it documented inhttp://clojure.org/reader. #' seems
to match Var-quote (#'), but why does ^ get you metadata when that
page uses
Check out clojuratica. It interfaces Clojure to a free version of
mathematica which has a very fast implementation called FactorInteger.
--Mark
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You received this message because you are subscribed to the Google
Groups Clojure group.
To post to this group, send email to
It's a (drastic) performance improvement. The magic number of 3
appears to cover a lot of use cases. Once you get larger than three,
it typically is a large number of inputs, i.e. the tail flattens off.
On Mar 23, 5:00 pm, Thomas thomas.g.kristen...@gmail.com wrote:
Hi all,
I've been reading
Jeremy,
Try this instead: (.cast SomeInterface SomeInterfaceImplInstance)
Example:
user= (.cast (class java.util.Set) (java.util.HashSet.))
java.lang.ClassCastException (NO_SOURCE_FILE:0)
user= (.cast java.util.Set (java.util.HashSet.))
#HashSet []
On Mar 23, 9:07 pm, Jeremy Wall
I think get/put are pretty fast but there is also the possibility of
slicing arrays in and out of nio buffers on the java side which maybe
could be faster if you want to modify many values and have some memory
to spare.
For example if you have a nio buffer several hundred megabytes big and
you
That seems to work but doesn't fix the clojure problem. Since clojure
is preforming the cast on my behalf in a call to Reflector.boxArg
On Mar 24, 12:29 pm, .Bill Smith william.m.sm...@gmail.com wrote:
Jeremy,
Try this instead: (.cast SomeInterface SomeInterfaceImplInstance)
Example:
user=
(3) IDEA integration: Ditto but for IDEA/La Clojure.
I have tested labrepl on IntelliJ IDEA Ultimate 9 on Mac: Here are the
steps to install and run:
1. One time setup:
* Get labrepl from github (no need for leiningen).
* Install La Clojure plugin:
* Prefereneces/Plugins/Available,
On Tue, Mar 23, 2010 at 8:19 PM, Raph mart...@gmail.com wrote:
(My opinion, anyway.I think a byte should be 8 bits and I should be able to
use all of them.)
Er, it is, and you can. A Java byte still gives you all 8 bits' worth
of 256 different possible values; the interpretation of those
The following repl session shows my attempt to dispatch a multimethod on type:
...
user (defmulti mm type)
#'user/mm
user (type a)
java.lang.String
user (defmethod mm java.lang.String [s] (println string))
#MultiFn clojure.lang.mult...@41e3a0ec
user (mm a)
string
nil
user (type (.getBytes a))
[B
How big is your project? Can you reproduce it using something
smaller?
On Mar 24, 12:44 pm, Jeremy Wall jw...@google.com wrote:
That seems to work but doesn't fix the clojure problem. Since clojure
is preforming the cast on my behalf in a call to Reflector.boxArg
--
You received this message
Never mind -- didn't realize those classes are part of the Google app
engine.
On Mar 24, 1:06 pm, .Bill Smith william.m.sm...@gmail.com wrote:
How big is your project? Can you reproduce it using something
smaller?
On Mar 24, 12:44 pm, Jeremy Wall jw...@google.com wrote:
That seems to work
Jeremy, try it this way instead: http://gist.github.com/342607
On Mar 24, 1:22 pm, .Bill Smith william.m.sm...@gmail.com wrote:
Never mind -- didn't realize those classes are part of the Google app
engine.
On Mar 24, 1:06 pm, .Bill Smith william.m.sm...@gmail.com wrote:
How big is your
I could whip up something small using an interface and and two classes
that would do it I think. and provide a jar with that reproduces the
problem with clojure source code. Would that help?
.Bill Smith wrote:
Never mind -- didn't realize those classes are part of the Google app
engine.
On
Quite right. My comment was mainly aimed at something like casting
0xABC to a byte, and didn't consider the signed value problem. I
think this is a good case for a separate function, such as the one you
provided.
On Mar 24, 8:21 am, Josh Arnold josharnol...@gmail.com wrote:
I can't think of
Arrays are mutable, seqs immutable. Clojure ='s compares immutable
structures by value, and mutable structures by reference (for the
objects that it is aware of, for others it just prays that they have a
resoanable equals method). This behaviour is described in the very
interisting Henry Baker's
Done:
https://www.assembla.com/spaces/clojure/tickets/284-cannot-cast-0xff-to-a-byte-(fails-out-of-range-check)
On Mar 24, 10:57 am, Mark J. Reed markjr...@gmail.com wrote:
On Tue, Mar 23, 2010 at 8:19 PM, Raph mart...@gmail.com wrote:
(My opinion, anyway.I think a byte should be 8 bits and I
Thanks for the response - guess it is the best one can do living in this mixed
mutable/immutable world.
Has the seq'ed version of the java byte array become immutable or do we have to
pray that nobody changes the underlying array values?
-FS.
On Mar 24, 2010, at 12:40 PM, André Ferreira
On Wed, Mar 24, 2010 at 4:17 PM, Frank Siebenlist
frank.siebenl...@gmail.com wrote:
Thanks for the response - guess it is the best one can do living in this
mixed mutable/immutable world.
Has the seq'ed version of the java byte array become immutable or do we have
to pray that nobody
Actually, swap! doesn't seem to work in my case.I should state
what I'm
trying to do.I'm writing a graphics editing program where I want
the user
to be able to choose and save color values. I start out with a
vector
containing blank and white. When the user selects a new color and
wants
On Wed, Mar 24, 2010 at 5:43 PM, WoodHacker ramsa...@comcast.net wrote:
Actually, swap! doesn't seem to work in my case.I should state
what I'm
trying to do.I'm writing a graphics editing program where I want
the user
to be able to choose and save color values. I start out with a
Also, you need to use swap! on an atom, so you'll need to make savedColors
one. Read here: http://clojure.org/atoms
On Wed, Mar 24, 2010 at 2:51 PM, David Nolen dnolen.li...@gmail.com wrote:
On Wed, Mar 24, 2010 at 5:43 PM, WoodHacker ramsa...@comcast.net wrote:
Actually, swap! doesn't seem
For type-hinting #^[B works, but for obtaining and passing the class
to defmethod, the best I can come up with is (Class/forName [B).
On Mar 24, 11:02 am, Frank Siebenlist frank.siebenl...@gmail.com
wrote:
The following repl session shows my attempt to dispatch a multimethod on
type:
...
Hi,
On Wed, Mar 24, 2010 at 02:43:49PM -0700, WoodHacker wrote:
(def savedColors [black, white])
(def savedColors (atom [black white]))
Exception in thread AWT-EventQueue-0 java.lang.ClassCastException:
clojure.lang.PersistentVector cannot be cast to clojure.lang.Atom
This message should be
Right - not very different from the (class (byte-array 1)) that I came up with
in the mean time... all not very clojuresque.
-FS.
On Mar 24, 2010, at 3:03 PM, ataggart wrote:
For type-hinting #^[B works, but for obtaining and passing the class
to defmethod, the best I can come up with is
Except Mathematica is kind of expensive $250 for the home edition. It
looks like there is also Incanter which is a similar project using R
free statistical computing environment
On Mar 24, 12:55 pm, Mark Engelberg mark.engelb...@gmail.com wrote:
Check out clojuratica. It interfaces Clojure to
Like I said, Clojuratica works with the free edition of Mathematica:
http://www.wolfram.com/products/player/
I found it tricky to get it all set up the first time, but it is definitely
nice to have access to some of those really fast Mathematica functions.
On Wed, Mar 24, 2010 at 3:57 PM, Glen
I tried following Rob Wolfe's zip file instructions. The bin\lein deps
command seemed to work fine, but when I then invoked bin\repl, I got the
following error:
CLASSPATH=;C:\labrepl-package\lib\ant-1.6.2.jar;C:\labrepl-package\lib\ant-laun
On 25 March 2010 00:05, Ramakrishnan Muthukrishnan vu3...@gmail.com wrote:
On Wed, Mar 24, 2010 at 8:36 AM, Michael Richter ttmrich...@gmail.com
wrote:
I don't know the process, but I'm willing to endure the tedium of
packaging
clojure for Ubuntu (and by extension Debian) if this is the
On Thu, Mar 25, 2010 at 6:38 AM, Michael Richter ttmrich...@gmail.com wrote:
On 25 March 2010 00:05, Ramakrishnan Muthukrishnan vu3...@gmail.com wrote:
On Wed, Mar 24, 2010 at 8:36 AM, Michael Richter ttmrich...@gmail.com
wrote:
I don't know the process, but I'm willing to endure the
The java version would look like:
Class c = byte[].class;
But since the clojure way to obtain a class is simply to use its name
literal, e.g.:
user= (type String)
java.lang.Class
the only way to get the class of an array would involve either a
function call or a change to the reader. And java
Hello,
I've just started to play a little bit with clojure to get a feel for
the language. It seems to be quite interesting (and it's a relief to
leave my clumsy IDE behind and use Emacs). Concerning immutable data:
Is the following code ok or should (must) I use transients as
variables for the
Ok, after looking into how clojure resolves class literal symbols, it
turns out it is already smart enough to recognize symbol names that
start with [; the problem is it's a pain to type such symbols into
code.
Your code can work this way:
user= (defmethod mm (resolve (symbol [B)) [b] (println
Looks fine. The maps are immutable, but the 'word-map symbol is
rebound on each loop to the map returned from merge-with.
On Mar 24, 2:15 pm, jfr janfrider...@googlemail.com wrote:
Hello,
I've just started to play a little bit with clojure to get a feel for
the language. It seems to be quite
That almost worked I just had to add one more piece
(into-array #^LocalServiceTestConf [helper-conf#])
So that clojure made the array the right type. Thanks for the help!!
On Mar 24, 1:40 pm, Jeremy Wall jw...@google.com wrote:
I could whip up something small using an interface and and two
Nice research - so is it then the reader that doesn't allow us to escape the
[B such that we can write it such that it can be interpreted as a symbol [B ?
-Frank.
On Mar 24, 2010, at 7:27 PM, ataggart wrote:
Ok, after looking into how clojure resolves class literal symbols, it
turns out it
Hello,
(defn count-words [words]
Counts the occurrences of all words in the given string. Returns a
map with the words as keys, their frequency as values
(loop [my-words (re-seq #[a-zA-ZöäüÖÄÜß]+ words) word-map {}]
(if (empty? my-words)
word-map
(recur (rest my-words)
On 25 March 2010 09:20, Ramakrishnan Muthukrishnan vu3...@gmail.com wrote:
On Thu, Mar 25, 2010 at 6:38 AM, Michael Richter ttmrich...@gmail.com
wrote:
On 25 March 2010 00:05, Ramakrishnan Muthukrishnan vu3...@gmail.com
wrote:
On Wed, Mar 24, 2010 at 8:36 AM, Michael Richter
Nope, though thinking further on it, I'm really not a fan of people
having to know java's class name encoding scheme for arrays.
Personally, I'd prefer writing (array-class String), or have some
clojure-specific syntax to denote an array of a class (though some
would say clojure has enough syntax
On Thu, Mar 25, 2010 at 9:01 AM, Michael Richter ttmrich...@gmail.com wrote:
Weird. I'm showing 1.0 for those.
mich...@isolde:~$ aptitude search clojure
p clojure - a Lisp
dialect for the JVM
mich...@isolde:~$ aptitude show clojure
You probably can't. I think hints only go in binding declarations. I'd
use 'env', as you're probably doing already. But let's keep an eye on
Mark's patch, as it'd be much better to avoid an explicit upcasting.
On Mar 23, 7:38 pm, Konstantin Barskiy zuftw...@gmail.com wrote:
Thanks a lot!
Is
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