gmane.lisp.scheme.gauche

Re: big number printout

Bill Schottstaedt — 2008-07-21T11:18:43

Thanks very much for the explanation! I should not send bug reports at the end of a frustrating day -- the real problem started with a different Scheme that actually had about 12 honest digits -- I said "what does Gauche do?" and only got more tangled up. Since every implementation is different, it would be nice to know in advance the range for inexact integers -- I could then add that check to my code. ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

Re: big number printout

Shiro Kawai — 2008-07-21T03:17:59

From: "Bill Schottstaedt" ccrma.Stanford.EDU> Subject: [Gauche-devel] big number printout Date: Tue, 1 Jul 2008 07:35:27 -0700 The confusing part the last one, right? The first four examples merely show that the 10^0 digit of 40816513889983671.0 falls out of the precision limit; no wonder with the floating point numbers. The last one might hit you strange, though. Although the 16th digit of 4.0816513889983674e16 doesn't matter, the 16th digit of 4.0816513889983674 does. The minimum required digits in decimal to represent IEEE double-precision floating point numbers accurately varies between 16 and 17, depending on the value of the floating point number. If you multiply the value by 10, this minimum required digits may change. Most programs I've seen (including programming language implementations) casually round the printed representation of floating point numbers in 15 or 16 digits. With this approach, a two different floating point numbers X and Y can have the same printed representation.

big number printout

Bill Schottstaedt — 2008-07-01T14:35:27

Not sure this is a bug, but it is confusing: gosh> (gauche-version) "0.8.13" gosh> (+ 40816513889983671.0 3.0) 4.081651388998367e16 gosh> (= (+ 40816513889983671.0 3.0) 4.081651388998367e16) #t gosh> (= (+ 40816513889983671.0 3.0) 40816513889983674.0) #t gosh> (= 40816513889983670.0 40816513889983674.0) #t gosh> (= 4.0816513889983670 4.0816513889983674) #f ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/

Re: Warning: svn trunk broken

Shiro Kawai — 2008-07-14T08:59:56

This problem has been addressed. Revision 6290 is in consistent state. --shiro From: Shiro Kawai lava.net> Subject: [Gauche-devel] Warning: svn trunk broken Date: Sun, 13 Jul 2008 06:24:15 -1000 (HST) ------------------------------------------------------------------------- Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW! Studies have shown that voting for your favorite open source project, along with a healthy diet, reduces your potential for chronic lameness and boredom. Vote Now at http://www.sourceforge.net/community/cca08

Warning: svn trunk broken

Shiro Kawai — 2008-07-13T16:24:15

For those who's following the breeding-edge: I accidentally committed an experimental code which needs other uncommitted changes. Unfortunately SourceForge.net svn repository got full disk at this very moment and I cannot commit fix. (Disks get full always in a wrong moment, right?) The following is the minimal patch required to build from svn trunk. Apply it if you check out the revision 6289. Once sf.net solves the disk issue I'll commit the fix. --shiro =================================================================== --- src/compile.scm (revision 6289) +++ src/compile.scm (working copy) < at >< at > -3383,16 +3383,8 < at >< at > (pass3/if-numcmp iform (car args) (cadr args) BNLE ($*-src test) ccb renv ctx)) ((eqv? code NUMLT2) - (cond - [(and (has-tag? (car args) $LREF) - (receive (depth offset) - (renv-lookup renv ($lref-lvar (car args))) - (and (zero? depth) (zero? offset)))) -

ANN: dyncomp 0.1.2

KOGURO, Naoki — 2008-07-11T22:14:56

Hi all. dyncomp 0.1.2 is released. dycomp is a module that enables to create C function with gauche.cgen.cise (C in S expression). This function is compiled to native code with Tiny C Compiler (http://bellard.org/tcc/), so you can create a fast function. The change from the previous version is: - Added Windows/MinGW support. See http://homepage.mac.com/naoki.koguro/prog/dyncomp/index.html for more details. -- KOGURO, Naoki koguro.net> ------------------------------------------------------------------------- Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW! Studies have shown that voting for your favorite open source project, along with a healthy diet, reduces your potential for chronic lameness and boredom. Vote Now at http://www.sourceforge.net/community/cca08

Re: profiler overflow

Shiro Kawai — 2008-07-09T15:45:47

From: Sven.Hartrumpf< at >FernUni-Hagen.de Subject: [Gauche-devel] profiler overflow Date: Wed, 09 Jul 2008 15:42:17 +0200 (CEST) Ouch. I think I was afraid of the count going up to bignum, thus limitted the counter in fixnum range. I looked at the code and it seems that I can use multiple fixnums without introducing much overhead. 60bits are probably enough (before it overflows, I think sampling buffer would bust). I'll see if I can put the fix in the next release. For the time being, and probably better workaround for long-running programs, is to call profiler API from your program, collecting, saving and resetting the result periodically. Later you can sum up the result (you can get the result in S-expression, so it'll be pretty easy to postprocess them). Since the amount of sampling results never decreases until the profiler is reset, the approach would be much safer for daemon-like programs. --shiro ------------------------------------------------------------------------- Sponsored by: SourceForg

profiler overflow

2008-07-09T13:42:17

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Re: a little question about wiliki

Shiro Kawai — 2008-07-05T23:01:05

From: JP Theberge yahoo.fr> Subject: [Gauche-devel] a little question about wiliki Date: Sat, 5 Jul 2008 01:43:02 +0000 (GMT) Yes, you can ask it here. I already forgot what I was intended in the API, but as far as I can figure out from the source, the list after the regexp is a list of variables that receives the (sub)matches of the actual page name. So, try (define-virtual-page (#/^RSS_.*/ (name)) ...) and the variable 'name' will be bound to the entire match, which should be the given name, or (define-virtual-page (#/^RSS_(.*)/ (name subname)) ...) to extract the subname without "RSS_" prefix. --shiro ------------------------------------------------------------------------- Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW! Studies have shown that voting for your favorite open source project, along with a healthy diet, reduces your potential for chronic lameness and boredom. Vote Now at http://www.sourceforge.net/community/cca08

ANN: dyncomp 0.1.1

KOGURO, Naoki — 2008-07-05T15:35:28

Hi all. dyncomp 0.1.1 is released. dycomp is a module that enables to create C function with gauche.cgen.cise (C in S expression). This function is compiled to native code with Tiny C Compiler (http://bellard.org/tcc/), so you can create a fast function. The change from the previous version is: - Added MacOSX and FreeBSD support (only x86). See http://homepage.mac.com/naoki.koguro/prog/dyncomp/index.html for more details. -- KOGURO, Naoki koguro.net> ------------------------------------------------------------------------- Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW! Studies have shown that voting for your favorite open source project, along with a healthy diet, reduces your potential for chronic lameness and boredom. Vote Now at http://www.sourceforge.net/community/cca08

a little question about wiliki

JP Theberge — 2008-07-05T01:43:02

I hope it is the right place to ask. Is there a way to get the name of the current page from within a virtual page? for example if I call the page wiliki.cgi?p=RSS_myblog I want to be able to use the string "myblog" from within (define-virtual-page (#/^RSS_/ (_)) ... Any help will be greatly appreciated! -- JP Theberge Offrez un compte Flickr Pro à vos amis et à votre famille. http://www.flickr.com/gift/ ------------------------------------------------------------------------- Sponsored by: SourceForge.net Community Choice Awards: VOTE NOW! Studies have shown that voting for your favorite open source project, along with a healthy diet, reduces your potential for chronic lameness and boredom. Vote Now at http://www.sourceforge.net/community/cca08

ANN: dyncomp 0.1

KOGURO, Naoki — 2008-06-22T05:36:03

Hi all. dyncomp 0.1 is released. dycomp is a module that enables to create C function in gauche.cgen.cise (C in S expression). This function is compiled to native code with Tiny C Compiler (http://bellard.org/tcc/), so you can create a fast function. Here is a Mandelbrot set benchmark in linux (PentiumM 2.13GHz). # Scheme function % gosh examples/mandelbrot.scm ;(time (fill-image image size)) ; real 1.190 ; user 1.180 ; sys 0.010 # C function (using dyncomp) % gosh examples/mandelbrot.scm -c ;(time (fill-image-fast image size)) ; real 0.025 ; user 0.020 ; sys 0.000 See http://homepage.mac.com/naoki.koguro/prog/dyncomp/index.html for more details. NOTE: dyncomp works only in Linux x86. -- KOGURO, Naoki koguro.net> ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php

Re: Migrating to Subversion

Shiro Kawai — 2008-06-19T10:10:13

Most of Gauche source trees on sf.net have been migrated to Subversion. http://gauche.svn.sourceforge.net/viewvc/gauche/ See my previous email quoted below for the instructions of how to check them out (replace Gauche-gl with suitable module name). I didn't touch Gauche-gtk and Gauche-h2s. Michal, if you like to move to Subversion, let me know and I can migrate them as well. --shiro From: Shiro Kawai lava.net> Subject: [Gauche-devel] Migrating to Subversion Date: Fri, 06 Jun 2008 00:27:29 -1000 (HST) ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just about anything Open Source. http://sourceforge.net/services/buy/index.php

Gauhebox-0.8.13-box2.exe released.

えんどうやすゆき — 2008-06-16T10:11:24

hi. I released Gauchebox-0.8.13-box2.exe. http://sourceforge.net/project/showfiles.php?group_id=25227 This release includes Gauche-mingw, Meadow(Emacs22), Gauche-gl, slib, WiLiKi, etc. Thank you saito-san, I use youre Gauche-mingw build.

ANN: Gauche-rfb 0.1.3

KOGURO, Naoki — 2008-06-06T16:05:22

Hi all. Gauche-rfb 0.1.3 is released. Gauche-rfb is a cross-platform simple graphics library using VNC protocol. You can connect to it using VNC client or Web browser. The changes from the previous version are: - Added the support of Flash's policy file request. If you use Flash Player 9,0,115,0 or later, you must upgrade Gauche-rfb. See http://homepage.mac.com/naoki.koguro/prog/Gauche-rfb/index.html for more details. There are some videos to introduce Gauche-rfb (these videos are for Japanese speaker, but you can get what Gauche-rfb can do if you know Scheme). - Lightning Talk in gauche.night 2007 http://video.google.com/videoplay?docid=4894372035050844386 - LiveCoding of making Conway's Game of Life (using Gauche-rfb to display) http://d.hatena.ne.jp/koguro/20080126 Enjoy. -- KOGURO, Naoki koguro.net> ------------------------------------------------------------------------- Check out the new SourceForge.net Marketplace. It's the best place to buy or sell services for just ab

Migrating to Subversion

Shiro Kawai — 2008-06-06T10:27:29

Hi Gauche developers, I've been procrastinating this, but SourceForge.net's CVS is getting so slow enough to convince me to finally start migrating Gauche repository to Subversion. Since Gauche repository have several packages and we have several committers, I gradually move one package at a time whenever I find time to do so. I just migrated Gauche-gl for the starter. I'm going to move small packages first, then Gauche itself. When you browse the source at the sourceforge.net webpage, check out the subversion repository first: http://gauche.svn.sourceforge.net/viewvc/gauche/ Once a package is migrated, the CVS repository will no longer be updated. I'll try to remove files from CVS repository to avoid confusions, but there may be some delay. Here's a short summary of how to access the new repository, for your convenience: THOSE WHO WANT TO GET CUTTING EDGE SOURCE ----------------------------------------- This command works in general: $ svn co https://gauche.svn.sourceforge.net/svnroot/gauche/Gau

Re: typo in doc of permute

Shiro Kawai — 2008-05-29T04:02:26

patch applied. thanks. --shiro From: Masatake YAMATO redhat.com> Subject: [Gauche-devel] typo in doc of permute Date: Wed, 28 May 2008 18:31:33 +0900 (JST) ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/

typo in doc of permute

Masatake YAMATO — 2008-05-28T09:31:33

Hi, I found a typo in modgauche.texi. If it is not fixed yet, please install following patch. Masatake YAMATO Index: modgauche.texi =================================================================== RCS file: /cvsroot/gauche/Gauche/doc/modgauche.texi,v retrieving revision 1.112 diff -c -r1.112 modgauche.texi *** modgauche.texi18 Apr 2008 11:06:02 -00001.112 --- modgauche.texi28 May 2008 09:24:01 -0000 *************** *** 8079,8085 **** < at >example (permute '(a b c d) '(3 2 0 1)) < at >result{} (d c a b) ! (permute '(a b c d) '(0 2)) < at >result{} (a b) (permute '(a b c d) '(0 0 1 1 2 2)) < at >result{} (a a b b c c) < at >end example --- 8079,8085 ---- < at >example (permute '(a b c d) '(3 2 0 1)) < at >result{} (d c a b) ! (permute '(a b c d) '(0 2)) < at >result{} (a c) (permute '(a b c d) '(0 0 1 1 2 2)) < at >result{} (a a b b c c) < at >end example ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Mic

ANN: c-wrapper 0.5.4

KOGURO, Naoki — 2008-05-11T03:29:06

Hi all. c-wrapper 0.5.4 is released. c-wrapper is a foreign function interface for Gauche, and you can use C libraries easily. The changes from the previous version are: - Added partial support of Objective-C 2.0. - Modified ptr->string and x->string to copy an original string. See http://homepage.mac.com/naoki.koguro/prog/c-wrapper/index.html for more details. Enjoy. -- KOGURO, Naoki koguro.net> ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone

Re: c-wrapper: performance problem

Jens Thiele — 2008-04-11T15:47:59

Ah ok. For now I use: (define (c-byte-array->u8vector3 array) (let1 ret (make-u8vector (size-of array)) (memcpy ret array (size-of array)) ret)) $ ./c-wrapper-perfomance-problem 1000000 ;(time (c-byte-array->u8vector1 (cast (c-array bytes) array))) ; real 25.281 ; user 25.250 ; sys 0.010 ;(time (c-byte-array->u8vector2 (cast (c-array bytes) array))) ; real 23.319 ; user 23.320 ; sys 0.010 ;(time (c-byte-array->u8vector3 (cast (c-array bytes) array))) ; real 0.002 ; user 0.000 ; sys 0.000 Thanks, Jens ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone

Re: c-wrapper: performance problem

KOGURO, Naoki — 2008-04-11T12:50:44

Hi Jens, On 2008/04/11, at 3:52, Jens Thiele wrote: You're right, the cast method has not been optimized for uvector yet. If you want to use bulk copy, you can use memcpy as you do in C, such like the code below. (define buf (make-u8vector 100)) ;; ary is C byte array. (memcpy buf ary 100) An uvector is used in pointer context, the pointer of the uvector's storage is passed to C function. -- KOGURO, Naoki koguro.net> ------------------------------------------------------------------------- This SF.net email is sponsored by the 2008 JavaOne(SM) Conference Don't miss this year's exciting event. There's still time to save $100. Use priority code J8TL2D2. http://ad.doubleclick.net/clk;198757673;13503038;p?http://java.sun.com/javaone