user=> (defn fac [n] (loop [n n r 1] (if (= n 1) r (recur (dec' n) (*'
r n)
NO_SOURCE_FILE:5 recur arg for primitive local: r is not matching
primitive, had: Object, needed: long
Auto-boxing loop arg: r
#'user/fac
user=> (fac 40)
8159152832478977343456112695961158942720N
Might I sugg
> You can use Compojure to build webapp in more convenient way.
I should elaborate on my previous post. It was intended not to
recommend the clojure way of building web apps (there's plenty of info
regarding that - compojure, ring, clout, hiccup, conjure, etc), but
rather as a specific, detailed e
The new uber-loop is fantastic.
So I guess the main point still to be finalized is whether the default
arithmetic ops will auto-promote or error when long addition
overflows.
Playing around with the latest equals branch:
user=> (def n 9223372036854775810)
#'user/n
user=> (* (/ n 3) 3)
922337203
Is it really necessary to have the keys :data and :children? If not:
(reduce (fn [r x] (assoc-in r x {})) {} (partition 3 '(A1 B1 C1 A1 B1 C2 A1
B2 C3 A1 B2 C4 A2 B3 C5 A2 B3 C6 A2 B4 C7 A2 B4 C8)))
{A2 {B4 {C8 {}, C7 {}}, B3 {C6 {}, C5 {}}}, A1 {B2 {C4 {}, C3 {}}, B1 {C2
{}, C1 {
Works out
Hi all -
This seems like it should be easy, but for some reason i have thought
myself into a box on this and now am stuck.
I have a data set of rows/ columns that has some hierarchical data in
it:
COLUMN A B C
A1 B1 C1
A1 B1 C2
A1 B
On 21 June 2010 18:42, Paul Moore wrote:
> 3. Using a bat file to start a GUI application from Explorer causes an
> unnecessary and ugly console window to appear.
You should use "javaw" instead of "java" to start the JVM without the
console window appearing. This should ship with both the JRE an
Paul,
One way would be to use the cljw.exe that comes with
dejour. This is a windows executable that runs clojure
without creating that annoying extra window.
I haven't really looked into making dejour work with
Leiningen yet, so that may be a problem for you.
You can find the dejour project on
On Mon, 21 Jun 2010 12:42:47 -0500, Paul Moore wrote:
The common way of running Java applications (and hence Clojure code)
on Windows seems to be to use a batch file wrapper (for example,
lein.bat for Leiningen). It seems to me that there are a number of
issues with this:
[...]
Before I spend t
Has anyone put together a submission for Clojure to Duke's Choice?
http://www.oracle.com/dm/10q4cif/em050238/em050238_duke_choice_awards_welcome_new.html
We just need to capture what makes Clojure special in 500 words.
--
Howard M. Lewis Ship
Creator of Apache Tapestry
The source for Tapestry
Hi Travis,
The choice of "extend" follows from this reasoning:
(1) Create a protocol. At this point there are no implementations. Protocol
functions will fail regardless of arguments passed.
(2) Extend the protocol to a String. The protocol has been *extended* to work
with one type, Strings.
I notice that there is a "satisfies?" method to determine if something
satisfies a protocol. Also, I see that "extend-protocol" doesn't
actually let one create a protocol which is an extension of another
protocol. Rather, "extend-protocol" really means "implements", in the
Java sense.
When I first
user=> (set! *warn-on-reflection* true)
true
user=> (defn fac [n] (loop [n n r 1] (if (= n 1) r (recur (dec' n) (*'
r n)
NO_SOURCE_FILE:5 recur arg for primitive local: r is not matching
primitive, had: Object, needed: long
Auto-boxing loop arg: r
#'user/fac
user=> (fac 40)
81591528324789773434
If this is half the genius it sounds like then bravo! :D
On Jun 21, 9:52 am, Rich Hickey wrote:
> I've added the speculative analysis required to detect when recur
> arguments fail to match the type of primitive loop locals, and
> recompile the loop with those loop args boxed. When *warn-on-
The common way of running Java applications (and hence Clojure code)
on Windows seems to be to use a batch file wrapper (for example,
lein.bat for Leiningen). It seems to me that there are a number of
issues with this:
1. Batch files don't nest well - if I want to call lein.bat from
within another
On 21 June 2010 08:18, Erik Söhnel wrote:
> Feel free to ask or drop into #clojure if you're having more
> questions.
Actually he did that, this thread was started somewhere in the middle
of a #clojure chat. A solution was reached eventually. :-)
http://clojure-log.n01se.net/date/2010-06-19.html
On 21 June 2010 16:52, Rich Hickey wrote:
> I've added the speculative analysis required to detect when recur arguments
> fail to match the type of primitive loop locals, and recompile the loop with
> those loop args boxed. When *warn-on-reflection* is true it will issue a
> report that this is ha
I'm using JavaCL as the underlying library, which uses JNA rather than
JNI. My understanding of the distinction (which is not perfect) is
that JNA relies on bindings generated at runtime, rather than the
static per-platform binaries used in JNI. As a result, you only need
a jar file.
I believe J
On Mon, Jun 21, 2010 at 10:52 AM, Rich Hickey wrote:
> I've added the speculative analysis required to detect when recur arguments
> fail to match the type of primitive loop locals, and recompile the loop with
> those loop args boxed. When *warn-on-reflection* is true it will issue a
> report tha
> available athttp://github.com/ztellman/calx.
Nice!
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first pos
> My favorite option of those proposed is:
> +, *, -, inc, dec auto-promote.
> loop/recur is changed so that primitive bindings are boxed.
> +',*',-',inc',dec' give error upon overflow.
> A new construct, loop', is introduced that doesn't box primitives and
> enforces recur with primitive upon pena
On Jun 21, 2010, at 16:52 , Rich Hickey wrote:
> I've added the speculative analysis required to detect when recur arguments
> fail to match the type of primitive loop locals, and recompile the loop with
> those loop args boxed. When *warn-on-reflection* is true it will issue a
> report that t
On Jun 20, 2010, at 12:57 PM, Luke VanderHart wrote:
I've been reading this thread, and there's good arguments being made
both ways - I've just been reading with interest. But after seeing the
factorial function that won't compile without hints/casts, I feel I
have to speak up.
I wrote a book
On Mon, Jun 21, 2010 at 2:04 AM, Zach Tellman wrote:
> Wrappers for OpenCL have been discussed a few times on this list, so
> hopefully a few of you will be interested to hear that one is
> available at http://github.com/ztellman/calx.
>
> In my opinion, the C-variant language used by OpenCL does
BTW...his documentation is just awesome...read the section on
"Superman is a slacker" for a good laugh.
Timothy
> On Mon, Jun 21, 2010 at 6:46 AM, Julian wrote:
>> Rich Hickey made reference in one of his videos to a language that
>> could convert between all different kinds of units and dimensi
On Mon, Jun 21, 2010 at 6:46 AM, Julian wrote:
> Rich Hickey made reference in one of his videos to a language that
> could convert between all different kinds of units and dimensions.
> Does anybody recall what that was?
google is thy friend:
http://www.google.com/search?sourceid=chrome&ie=UTF
The language was Frink.
On Jun 21, 4:46 am, Julian wrote:
> Rich Hickey made reference in one of his videos to a language that
> could convert between all different kinds of units and dimensions.
> Does anybody recall what that was?
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Hi,
On Jun 21, 4:04 pm, Lee Spector wrote:
> I guess this a somewhat unrelated newbie question: aren't there often cases
> like this where one wants to temporarily rebind something, but across all
> children threads? Is there some straightforward way to do this that I've
> missed?
See:
http
I noticed you are importing com.nativelibs4java.opencl
in src/clax/data.clj, looking at your project.clj I see
a dep on clax/javacl
is that where you are pulling the native lib for
OpenCL? Can you explain a bit on your approach of
getting this to work on various platforms? Esp on OSX
and Linux.
T
That blog-post is by me. I have only tried Lein on XP, but
theoretically it should work on Vista too. The Leiningen 1.1.0 JAR
bundles Clojure 1.1.0 compiled classes inside. You can mention the
version of Clojure in the project.clj file for your project. As of now
Clojure 1.1.0 is the stable version
Frink.
Julian wrote:
Rich Hickey made reference in one of his videos to a language that
could convert between all different kinds of units and dimensions.
Does anybody recall what that was?
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To pos
Rich Hickey made reference in one of his videos to a language that
could convert between all different kinds of units and dimensions.
Does anybody recall what that was?
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Hi,
see http://paste.pocoo.org/show/227866/
You just have to write your macro so that it expands into multiple
defs. Remember, macros work at compile time, so they are not the same
as eval. And from your code, I could not see your intentions, your
prepare-2 macro seems somehow wrong to me. Maybe
On Jun 21, 2010, at 8:23 AM, Heinz N. Gies wrote:
> it would be more or less trivial to make a macro that switches between non
> promoting + primitive loop and promoting and boxed loop:
>
> (defmacro fast [body]
> `(let [+# +, *# *, -# -, loop# loop ...]
> (binding [+ +', * *', - -', loop
I figured before I added a ticket, I'd post here. I was using the functions
for Futures in Clojure and found for all of the future functions (like
future, future-done?, future-cancel etc) it was nicely abstracted and there
was no need to know exactly what kind of object was passed into or returned
I'm about to start a new project using haml in clojure and I wanted to
know at the present time (Jun 2010) - is clj-haml or haml-macro more
mature?
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Folks,
I've pushed out a new version (1.1.0b) of dejour this weekend.
Dejour provides an easy, works out of the box experience for the
Clojure programming language.
Dejour fills in some things that are missing from Clojure: It includes
clojure, clojure-contrib
and jline, along with the scripts t
On Mon, Jun 21, 2010 at 12:40 PM, Tim Daly wrote:
> This debate happened many years ago for common lisp.
>
> The flag *use-primitive-as-default* is a big help for optimization. Most
>> of the performance hits of boxing do not show in profiling.
>> (It slows down a lot of functions, by memory acc
On Jun 21, 3:07 pm, Joost wrote:
> For core swank-clojure (without the elisp parts), you start a swank
> server somewhere (using leiningen or some other script) and connect to
> that using slime-connect. This means you don't need to install swank-
> clojure in your clojure project, and can use g
On Jun 20, 8:03 am, Larry Travis wrote:
> So far so good. But then when I open a new file, say /foo.clj/ (and
> indeed am presented with a buffer in clojure mode), and do /M-x slime/,
> I get the error message "Symbol's function definition is void:
> define-slime-contrib". As I understand things,
Hello All,
I need the following;
The clojure version to be used,
The best way to configure Leiningen on Vista,
Examples
I am currently try out instructions on this site
http://charsequence.blogspot.com/2010/06/setup-leiningen-on-windows.html
Regards,
Emeka
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Hello
AC> Notes;
AC> - to update, simply copy new app clj file/s to WEB-INF/classes and
AC> reload the context.
AC> - Borrow http://github.com/weavejester/hiccup for some cool html
AC> generation stuff.
AC> - you should be able to adapt the above (namespace requiring) to your
AC> other jav
On 21.06.2010, at 02:19, Mark Engelberg wrote:
> The arguments seem to be winding down, so I thought this would be a
> good time to summarize my thoughts.
>
> My favorite option of those proposed is:
> +, *, -, inc, dec auto-promote.
> loop/recur is changed so that primitive bindings are boxed.
>
On Jun 21, 2010, at 13:40 , Tim Daly wrote:
> This debate happened many years ago for common lisp.
...
> Rich explicitly said he did not want this solution.
>
> Tim Daly
it would be more or less trivial to make a macro that switches between non
promoting + primitive loop and promoting and box
This debate happened many years ago for common lisp.
The flag *use-primitive-as-default* is a big help for optimization.
Most of the performance hits of boxing do not show in profiling.
(It slows down a lot of functions, by memory access and - more
importantly - filling the cache with garbage,
On Mon, Jun 21, 2010 at 12:32 AM, Nicolas Oury wrote:
> That's not true. primitive loop is one of the key of the java-like
> performance of clojure, once there are a few annotations.
Right, the key words here are "once there are a few annotations".
Those who aren't making those annotations will s
Hello theres a wherry "spartan" screencast on vimeo that install all this with
regular emacs http://vimeo.com/11844368
2010/6/20 Larry Travis :
> To save my life, I can't get Snow Leopard, Aquamacs, Clojure, and Slime to
> work. I have installed Aquamacs 2.0, then ELPA, then the packages
> clojur
On Mon, Jun 21, 2010 at 9:06 AM, Nicolas Oury wrote:
> - Default for the the non-labeled operator is boxed. It removes the problem
> for loop/recur, and gives back the problems are they are now.
oups. Not really awake. Monday morning :(
I meant:
- Default for the the non-labeled operator is bo
On Mon, Jun 21, 2010 at 1:19 AM, Mark Engelberg wrote:
> The arguments seem to be winding down, so I thought this would be a
> good time to summarize my thoughts.
>
I will do that too.
The two sides of the arguments have both good points and won't change their
position.
So, my proposal:
- a diffe
That's not true. primitive loop is one of the key of the java-like
performance of clojure, once there are a few annotations.
On Mon, Jun 21, 2010 at 1:19 AM, Mark Engelberg wrote:
> [Note that
> changing loop to auto-boxing behavior shouldn't hurt performance
> because currently, almost all numbe
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