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Re: Using a cl_object in Lisp
by Stewart M. 30 Jul '18

30 Jul '18

Hello Marius, This was very helpful, thank you! > Hi Stewart, > > cl_object's are declared as :object type in ECL's ffi, so > > (ffi:def-function "getObject" ((lo :pointer-void)) :returning :object) > (ffi:def-function "setObject" ((lo :pointer-void) (clo :object))) > > should work. CFFI does not support this as far as i know. > Hope that helps, > Marius Gerbershagen -- Stewart Milberger Kavalogic, Inc.

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Using a cl_object in Lisp
by Stewart M. 29 Jul '18

29 Jul '18

I am using CFFI with ECL to interface to a C++ library, which has a C++ class with a data member of type 'cl_object'. Simplified, my C++ code is: class LispObject { public: cl_object object; }; extern "C" cl_object getObject(LispObject* lo) { return lo->object; } extern "C" void setObject(LispObject* lo, cl_object clo) { lo->object = clo; } The full code is: https://common-lisp.net/viewvc/clive/trunk/src/extensions/corral/CliveCorra… Can I somehow declare the 'cl_object' type for the 'getValue()' and 'setValue()' functions using CFFI 'defcfun' to get and set ECL objects? Is there a technique using the lower-level FFI? I am looking for a way to do this without compiling C code embedded in Lisp, which I am aware ECL can do. Thank you for any ideas! -- Stewart Milberger Kavalogic, Inc.

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how do you build the embed example
by blackthirt33n 28 May '18

28 May '18

How do you build the embed example "ecl-16.1.3\examples\embed" with the visual studio 2017 tools? I have no problem compiling running the Makefile in the msvc directory but the files up level are problematic. James

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defstruct :predicate failure
by Peter Keller 09 May '18

09 May '18

Hello, I ran into a situation where I think ECL 16.1.3 has a bug in it: Linux violet > ecl ;;; Loading "/home/psilord/quicklisp/setup.lisp" ;;; Loading #P"/usr/local/lib/ecl-16.1.3/asdf.fas" ECL (Embeddable Common-Lisp) 16.1.3 (git:UNKNOWN) Copyright (C) 1984 Taiichi Yuasa and Masami Hagiya Copyright (C) 1993 Giuseppe Attardi Copyright (C) 2000 Juan J. Garcia-Ripoll Copyright (C) 2016 Daniel Kochmanski ECL is free software, and you are welcome to redistribute it under certain conditions; see file 'Copyright' for details. Type :h for Help. Top level in: #<process TOP-LEVEL>. > (defstruct (foo (:type vector) (:predicate nil)) qux bar) Condition of type: SIMPLE-ERROR NIL is an illegal structure predicate. Available restarts: 1. (RESTART-TOPLEVEL) Go back to Top-Level REPL. Broken at SI:BYTECODES. [Evaluation of: (SI:TOP-LEVEL T)] In: #<process TOP-LEVEL>. >> The clhs spec says: http://www.lispworks.com/documentation/lw70/CLHS/Body/m_defstr.htm most notably: ":predicate This option takes one argument, which specifies the name of the type predicate. If the argument is not supplied or if the option itself is not supplied, the name of the predicate is made by concatenating the name of the structure to the string "-P", interning the name in whatever package is current at the time defstruct is expanded. If the argument is provided and is nil, no predicate is defined. A predicate can be defined only if the structure is named; if :type is supplied and :named is not supplied, then :predicate must either be unsupplied or have the value nil. " In this case, :type is supplied, :named is not supplied, and therefore :predicate must either be unsupplied or have the value NIL. In my case, it has the value NIL. It appears to me that I have written legal CL, but ECL doesn't think so. Thank you! -pete

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ASDF 3.3.2 released
by Robert Goldman 04 May '18

04 May '18

Dear Lisp implementors and maintainers, Today we release ASDF 3.3.2, the second bugfix release for the 3.3 release series. Of primary interest in this release are 1. Multiple fixes in handling misnamed (or "legacy-named," if you prefer) secondary systems ("foo-test" instead of "foo/test"). Thanks to Eric Timmons, there is also a similar fix for package-inferred-systems. 2. Fix an annoying warning message for compute-action-stamp. 3. Add support for the Mezzano implementation (thanks to E. Housel, H. Harrington). 4. Miscellaneous minor fixes and documentation tweaks. We urge implementations that are currently bundling previous versions of ASDF -- and especially those bundling 3.3.0 or 3.3.1 -- to upgrade to 3.3.2 at their earliest convenience. Immense thanks, as always, to Fare Rideau. Also thanks to the many bug reporters and patch submitters (see the Changelog), and to Anton Vodonosov and Dave Cooper for help with testing. Here is the changelog entry for 3.3.2: cl-asdf (2:3.3.2-1) unstable; urgency=low Bug fix release: * Dependency tracking: fix bugs in handling misnamed secondary systems. We now distinguish between "syntactic" and "semantic" primariness, properly warn in case a secondary system is misnamed, yet properly recompile or avoid spurious recompilation depending on whether there or not is a conflict or redefinition. Similarly handle package-inferred-system (thanks to Eric Timmons). Better warning in a fishy case of compute-action-stamp. * UIOP: Add package location information to define-package on SBCL. * Upgrade: fix issue with asdf/bundle. * Portability: add support for Mezzano (thanks to E. Housel, H. Harrington) * Documentation: add discussion of best practices. * Package-inferred system: Improve source file handling. * Test and documentation improvements. -- Francois-Rene Rideau <fare(a)tunes.org> Thu, 03 May 2018 22:46:19 -0400

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[Final CfPart] ELS 2018, April 16-17, Marbella, Spain
by Didier Verna 08 Apr '18

08 Apr '18

ELS'18 - 11th European Lisp Symposium Centro Cultural Cortijo de Miraflores Marbella, Málaga Spain April 16-17 2018 In cooperation with: ACM SIGPLAN Sponsored by RavenPack, Brunner Software GmbH, Franz Inc., LispWorks Ltd., and EPITA http://www.european-lisp-symposium.org/ Recent news: - ELS 2018 is in cooperation with ACM SIGPLAN - Full program now available on the website - Still one week to register! The purpose of the European Lisp Symposium is to provide a forum for the discussion and dissemination of all aspects of design, implementation and application of any of the Lisp and Lisp-inspired dialects, including Common Lisp, Scheme, Emacs Lisp, AutoLisp, ISLISP, Dylan, Clojure, ACL2, ECMAScript, Racket, SKILL, Hop and so on. We encourage everyone interested in Lisp to participate. Keynote speakers: - Vsevolod Domkin -- Lisp in a Startup: the Good, the Bad, and the Ugly - R. Matthew Emerson -- This Old Lisp (a look at Clozure CL) Important dates: - 16-17 Apr 2018 Symposium Programme chair: David Cooper, Genworks Intl., USA Local chairs: Andrew Lawson, Ravenpack, Spain Programme committee: Andy Wingo, Igalia, Spain Christophe Rhodes, Goldsmiths University, UK Christopher Wellons Null Program USA Ernst van Waning, Infometrics.nl, Netherlands Irène Durand, LaBRI, Université de Bordeaux, France Julian Padget, University of Bath, UK Ludovic Courtès, Inria, France Michael Sperber, DeinProgramm, Germany Nicolas Neuss, FAU Erlangen-Nürnberg, Germany Olin Shivers Northeastern University USA Philipp Marek, Austria Robert Strandh, Université de Bordeaux, France Sacha Chua Living an Awesome Life Canada Scott McKay, Future Fuel, USA Search Keywords: #els2018, ELS 2018, ELS '18, European Lisp Symposium 2018, European Lisp Symposium '18, 10th ELS, 10th European Lisp Symposium, European Lisp Conference 2018, European Lisp Conference '18 -- Resistance is futile. You will be jazzimilated. Lisp, Jazz, Aïkido: http://www.didierverna.info

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[CfPart] European Lisp Symposium 2018, 16-17 April, Marbella, Spain
by Didier Verna 14 Mar '18

14 Mar '18

ELS'18 - 11th European Lisp Symposium Centro Cultural Cortijo de Miraflores Marbella, Málaga Spain April 16-17 2018 Sponsored by Brunner Software GmbH, Franz Inc., LispWorks Ltd., and EPITA http://www.european-lisp-symposium.org/ Recent news: - Invited speakers announced (see below) - Registration open. Don't miss the March 25 deadline for the early bird discount! The purpose of the European Lisp Symposium is to provide a forum for the discussion and dissemination of all aspects of design, implementation and application of any of the Lisp and Lisp-inspired dialects, including Common Lisp, Scheme, Emacs Lisp, AutoLisp, ISLISP, Dylan, Clojure, ACL2, ECMAScript, Racket, SKILL, Hop and so on. We encourage everyone interested in Lisp to participate. Keynote speakers: - Vsevolod Domkin -- Lisp in a Startup: the Good, the Bad, and the Ugly - R. Matthew Emerson -- This Old Lisp (a look at Clozure CL) Important dates: - 25 Mar 2018 Early registration deadline - 16-17 Apr 2018 Symposium Programme chair: David Cooper, Genworks Intl., USA Local chairs: Andrew Lawson, Ravenpack, Spain Programme committee: Andy Wingo, Igalia, Spain Christophe Rhodes, Goldsmiths University, UK Christopher Wellons Null Program Canada Irène Durand, LaBRI, Université de Bordeaux, France Julian Padget, University of Bath, UK Ludovic Courtès, Inria, France Michael Sperber, DeinProgramm, Germany Nicolas Neuss, FAU Erlangen-Nürnberg, Germany Olin Shivers Northeastern University USA Philipp Marek, Austria Robert Strandh, LaBRI, Université de Bordeaux, France Sacha Chua Living an Awesome Life Canada Scott McKay, Future Fuel, USA Search Keywords: #els2018, ELS 2018, ELS '18, European Lisp Symposium 2018, European Lisp Symposium '18, 10th ELS, 10th European Lisp Symposium, European Lisp Conference 2018, European Lisp Conference '18 -- Resistance is futile. You will be jazzimilated. Lisp, Jazz, Aïkido: http://www.didierverna.info

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[Final CfP] European Lisp Symposium 2018 -- Deadline extension
by Didier Verna 19 Feb '18

19 Feb '18

ELS'18 - 11th European Lisp Symposium Centro Cultural Cortijo de Miraflores Marbella, Málaga Spain April 16-17 2018 Sponsored by Brunner Software GmbH and EPITA http://www.european-lisp-symposium.org/ *** Important: submission deadline extended to Sunday Feb. 25! The purpose of the European Lisp Symposium is to provide a forum for the discussion and dissemination of all aspects of design, implementation and application of any of the Lisp and Lisp-inspired dialects, including Common Lisp, Scheme, Emacs Lisp, AutoLisp, ISLISP, Dylan, Clojure, ACL2, ECMAScript, Racket, SKILL, Hop and so on. We encourage everyone interested in Lisp to participate. The 11th European Lisp Symposium invites high quality papers about novel research results, insights and lessons learned from practical applications and educational perspectives. We also encourage submissions about known ideas as long as they are presented in a new setting and/or in a highly elegant way. Topics include but are not limited to: - Context-, aspect-, domain-oriented and generative programming - Macro-, reflective-, meta- and/or rule-based development approaches - Language design and implementation - Language integration, inter-operation and deployment - Development methodologies, support and environments - Educational approaches and perspectives - Experience reports and case studies We invite submissions in the following forms: Papers: Technical papers of up to 8 pages that describe original results or explain known ideas in new and elegant ways. Demonstrations: Abstracts of up to 2 pages for demonstrations of tools, libraries, and applications. Tutorials: Abstracts of up to 4 pages for in-depth presentations about topics of special interest for at least 90 minutes and up to 180 minutes. The symposium will also provide slots for lightning talks, to be registered on-site every day. All submissions should be formatted following the ACM SIGS guidelines and include ACM Computing Classification System 2012 concepts and terms. Submissions should be uploaded to Easy Chair, at the following address: https://www.easychair.org/conferences/?conf=els2018 Note: to help us with the review process please indicate the type of submission by entering either "paper", "demo", or "tutorial" in the Keywords field. Important dates: - 25 Feb 2018 Submission deadline (*** extended! ***) - 19 Mar 2018 Notification of acceptance - 25 Mar 2018 Early registration deadline - 02 Apr 2018 Final papers due - 16-17 Apr 2018 Symposium Programme chair: David Cooper, Genworks Intl., USA Local chairs: Andrew Lawson, Ravenpack, Spain Programme committee: Andy Wingo, Igalia, Spain Christophe Rhodes, Goldsmiths University, UK Christopher Wellons Null Program Canada Irène Durand, LaBRI, Université de Bordeaux, France Julian Padget, University of Bath, UK Ludovic Courtès, Inria, France Michael Sperber, DeinProgramm, Germany Nicolas Neuss, FAU Erlangen-Nürnberg, Germany Olin Shivers Northwestern University USA Philipp Marek, Austria Robert Strandh, LaBRI, Université de Bordeaux, France Sacha Chua Living an Awesome Life Canada Scott McKay, Future Fuel, USA Search Keywords: #els2018, ELS 2018, ELS '18, European Lisp Symposium 2018, European Lisp Symposium '18, 10th ELS, 10th European Lisp Symposium, European Lisp Conference 2018, European Lisp Conference '18 -- Resistance is futile. You will be jazzimilated. Lisp, Jazz, Aïkido: http://www.didierverna.info

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[CfP] ELS 2018, April 16-17, Marbella, Spain
by Didier Verna 13 Feb '18

13 Feb '18

Reminder: submission deadline this sunday! ELS'18 - 11th European Lisp Symposium Centro Cultural Cortijo de Miraflores Marbella, Málaga Spain April 16-17 2018 Sponsored by Brunner Software GmbH and EPITA http://www.european-lisp-symposium.org/ The purpose of the European Lisp Symposium is to provide a forum for the discussion and dissemination of all aspects of design, implementation and application of any of the Lisp and Lisp-inspired dialects, including Common Lisp, Scheme, Emacs Lisp, AutoLisp, ISLISP, Dylan, Clojure, ACL2, ECMAScript, Racket, SKILL, Hop and so on. We encourage everyone interested in Lisp to participate. The 11th European Lisp Symposium invites high quality papers about novel research results, insights and lessons learned from practical applications and educational perspectives. We also encourage submissions about known ideas as long as they are presented in a new setting and/or in a highly elegant way. Topics include but are not limited to: - Context-, aspect-, domain-oriented and generative programming - Macro-, reflective-, meta- and/or rule-based development approaches - Language design and implementation - Language integration, inter-operation and deployment - Development methodologies, support and environments - Educational approaches and perspectives - Experience reports and case studies We invite submissions in the following forms: Papers: Technical papers of up to 8 pages that describe original results or explain known ideas in new and elegant ways. Demonstrations: Abstracts of up to 2 pages for demonstrations of tools, libraries, and applications. Tutorials: Abstracts of up to 4 pages for in-depth presentations about topics of special interest for at least 90 minutes and up to 180 minutes. The symposium will also provide slots for lightning talks, to be registered on-site every day. All submissions should be formatted following the ACM SIGS guidelines and include ACM Computing Classification System 2012 concepts and terms. Submissions should be uploaded to Easy Chair, at the following address: https://www.easychair.org/conferences/?conf=els2018 Note: to help us with the review process please indicate the type of submission by entering either "paper", "demo", or "tutorial" in the Keywords field. Important dates: - 18 Feb 2018 Submission deadline - 19 Mar 2018 Notification of acceptance - 25 Mar 2018 Early registration deadline - 02 Apr 2018 Final papers due - 16-17 Apr 2018 Symposium Programme chair: David Cooper, Genworks Intl., USA Local chairs: Andrew Lawson, Ravenpack, Spain Programme committee: Christophe Rhodes, Goldsmiths University, UK Christopher Wellons Null Program Canada Irène Durand, LaBRI, Université de Bordeaux, France Julian Padget, University of Bath, UK Ludovic Courtès, Inria, France Michael Sperber, DeinProgramm, Germany Nicolas Neuss, Universität Karlsruhe, Germany Olin Shivers Northwestern University USA Robert Strandh, LaBRI, Université de Bordeaux, France Sacha Chua Living an Awesome Life Canada Scott McKay, Future Fuel, USA Search Keywords: #els2018, ELS 2018, ELS '18, European Lisp Symposium 2018, European Lisp Symposium '18, 10th ELS, 10th European Lisp Symposium, European Lisp Conference 2018, European Lisp Conference '18 -- Resistance is futile. You will be jazzimilated. Lisp, Jazz, Aïkido: http://www.didierverna.info

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A few basic Lisp commands while in debugger (gdb)?
by PR 01 Feb '18

01 Feb '18

Hi, I remember vaguely that there have been added a few useful, simple functions for Lisp, which can be used during a gdb session, but I can't currently find them... Could anybody please point me to them? Thanks, Paul P.S. This would probably help debugging an android thread issue, happening only on a few recent devices; at least I already figured how to run gdbserver on android, and debug from the PC.

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