- Boost - lists.boost.org

[Block.Pointer][Container] List node allocator
by Phil Bouchard 02 Mar '16

02 Mar '16

I've refactored most of the internal algorithms of block_ptr<> and now it is much more robust. The following example works pretty well: https://github.com/philippeb8/block_ptr/blob/master/example/block_ptr_test1… The next step is to support Boost.Containers: https://github.com/philippeb8/block_ptr/blob/master/example/block_ptr_test2… But after debugging the code it looks like the allocator is not used to instantiate the nodes and I do not see how it is used by looking at the code: template <class T, class VoidPointer> struct list_node : public list_hook<VoidPointer>::type { private: //list_node(); public: typedef T value_type; typedef typename list_hook<VoidPointer>::type hook_type; T m_data; T &get_data() { return this->m_data; } const T &get_data() const { return this->m_data; } }; Am I missing something? Thanks a lot for your help, -Phil

3 8

[gsoc16] Boost rejected as GSoC 2016 org
by Niall Douglas 02 Mar '16

02 Mar '16

Dear Boost, It is with a heavy heart I write to say that Boost was rejected as an org for Google Summer of Code 2016 by Google. We had our application submitted in time, it was reviewed by three members of the Boost leadership, our ideas list had six solid ideas with an especially solid seventh on the way, we were in very good standing with Google and there was no reason to expect rejection. We have asked for clarification as to why we were rejected, and we shall try to improve our application next year to improve our chances. We recognise that many students and mentors will be extremely disappointed by this news. We share in that disappointment, and all we can say is please try again next year. For those students and mentors who are continuing a previous GSoC on an existing Boost library, there may be a possibility that Boost may be able to fund those continuations this year. Each case will be approached by the steering committee on a case by case basis, and be aware that the standard required for funding by Boost is considerably above that of Google's with an accompanying high and detailed standard of funding application to the steering committee. Contact us privately if you want to know more. On other news we had been expecting to announce today that Bryce Adelstein Lelbach has generously agreed to take over as secondary GSoC admin from Boris Schäling who has served Boost GSoC for something like four years now, so he has definitely earned himself a rest! Our thanks to Boris for his service, and welcome Bryce to the team! Finally, I'd like to thank Jon Kalb who moved heaven and earth as he always does to get the GSoC application submitted in time. Yours, Niall Douglas -- ned Productions Limited Consulting http://www.nedproductions.biz/ http://ie.linkedin.com/in/nialldouglas/

18 24

Re: [boost] [gsoc16] An update on GSoC 2016 contingency plans
by Bjorn Reese 02 Mar '16

02 Mar '16

On 03/02/2016 05:17 PM, Niall Douglas wrote: > * Boost.Http, mentored by Bjorn Reese. > https://boostgsoc14.github.io/boost.http/ > > Student: Vinícius dos Santos Oliveira > > Status: One peer review held I have been preparing a proposal for GSoC 2016 which got delayed due to the usual excuses (work-load.) This is a draft of the proposal: Title: HTTP parser combinator. This proposal explores a more flexible HTTP parser framework based on ideas from parser combinators and pull parsers. The framework differentiates itself from the existing HTTP parser libraries for C/C++ on several accounts. With the help of parser combinators it offers the possibility of parsing an entire HTTP message or just a piece of it. The framework should consist of mini-parsers for the individual BNF rules in the HTTP grammar [1]. This is useful when integrating with existing HTTP transport libraries, such as libcurl, which may deliver one HTTP header at the time through a calllback mechanism. Pull parsers gives us the opportunity to replace the parser during the parsing process. This is useful for HTTP Upgrade requests, where the grammar may change "in-flight." For example, WebSockets starts off using the normal HTTP grammar, but then changes to its own binary protocol. Other examples are the differently formatted data that occurs in HTTP messages, such as x-www-form-urlencoded [2] or JSON [3]. Pull parsers also allows for smaller memory footprint. [1] https://tools.ietf.org/html/rfc7230 [2] https://www.w3.org/TR/html401/interact/forms.html#h-17.13.4.1 [3] https://tools.ietf.org/html/rfc7159

1 0

[gsoc16] An update on GSoC 2016 contingency plans
by Niall Douglas 02 Mar '16

02 Mar '16

Dear Boost, We've been collecting a list of veteran Summer of Code students where "veteran" means students whom have previously done a Google Summer of Code for Boost. It /may/ be possible for us to acquire enough funding from a number of contributors to tide over ongoing GSoC projects this summer during our year off from Google funding for veteran students only. The stipend to the student would be the same as with Google, $5,500. The mentor stipend would likely need to be waived under any substitute programme. We would therefore appreciate an update from student and/or mentor as to whether they were intending to submit a continuing GSoC this summer and would be willing to continue work on their Boost library under any funding we find. If we have forgotten any students or projects, please get in touch. Extant ongoing summer of code projects known to us are (please send corrections of any mistakes): * Boost Document, mentored by Antony Polukhin. https://anuragxel.github.io/boost-document/ Student: Anurag Ghosh Status: Not peer reviewed * Boost.Compute, mentored by Kyle Lutz. https://boostorg.github.io/compute/ Student: Jakub Szuppe Status: Official Boost library * Boost.Hana, mentored by Joel Falcou. https://boostorg.github.io/hana/ Student: Louis Dionne Status: Official Boost library * Boost.Http, mentored by Bjorn Reese. https://boostgsoc14.github.io/boost.http/ Student: Vinícius dos Santos Oliveira Status: One peer review held * Boost.Fixed-Point, mentored by Paul Bristow. https://github.com/BoostGSoC15/fixed_point Student: Nikhar Agrawal Status: Not peer reviewed We are aware of the following Boost libraries who have strong but new-to-Boost potential student candidates in the pipeline for summer of code 2016: * Boost.odeint, mentored by Karsten Ahnert and Mario Mulansky There is even less chance we can find funding for these, but if any of the veteran students or mentors has to suddenly pull out before the summer, we would substitute one of these projects instead. Therefore, if mentors had a really excellent student lined up for 2016, please let us know. None of the above should be read that summer of code 2016 is going ahead. We just need some hard numbers with which to lobby for funding. We will get back to the community as soon as we know more. We need all this information requested above back BEFORE this weekend as we will be making use of the Jacksonville ISO WG21 meeting currently happening to grab the right people to ask them for donations from their corporate bodies. If YOUR corporate org would be willing to help sponsor a summer of code student, either partially or in full, PLEASE get in touch. Donations to Boost are tax deductible for US taxpayers. Thank you all very much in advance! Niall --- Boost C++ Libraries Google Summer of Code 2016 admin https://svn.boost.org/trac/boost/wiki/SoC2016

3 2

[serialization] Back Versioning issue
by Janusz Zradomia 02 Mar '16

02 Mar '16

We want to use boost::serialization with boost::asio in one of our software, but we have a critical issue which prevents our further work. It refers to the "Back Versioning" known problem in TODO section: "It has been suggested that a useful feature of the library would be the ability to create "older versions" of archives. Currently, the library permits one to make programs that are guaranteed the ability to load archives with classes of a previous version. But there is no way to save classes in accordance with a previous version. At first I dismissed this as a huge project with small demand. A cursory examination of the code revealed that this would not be very difficult. It would require some small changes in code and some additional tests. Also it would require special treatment in the documentation - perhaps a case study. " *We want to ask what is status of this issue and can we expect to fix this in near future.* This is a networking project, our program compiled with e.g. boost 1.62 or some future version must create archives that can be (sent over the network and then) read on the program compiled with older version like 1.57 for example (as now available by default of Windows/cygwin). We would hope that we can do something like; Archive ar; ar.set_compatibility_boost_version(1, 55); ar << ... We would also need to backport the patch to older version of boost archive, so they also can write archives readable by (even older) versions. In the end we expect to run machines with: boost 1.55 (plus patch to set compatibility) boost 1.57 (plus patch to set compatibility) boost 1.58 (plus patch to set compatibility) boost 1.62 (perhaps by default with the set compatibility option) and each of this computers needs to write archive readable by all other versions (set they would all set compatibility to lowest common version). Without this functionality we can not use boost archive in this project. We would like to help you test/backport this fix and perhaps even try to code it, although we do not yet have any experience in writing code for boost library itself. Can we expect this functionality to be written in e.g. this year? Best regards

2 1

[doc] Liven up Boost Documentation with Java Script?
by Krzysztof Jusiak 01 Mar '16

01 Mar '16

Dear Boosters, I'm writing to ask about your opinion regarding more interactive documentation for Boost. I know already that some of you would like to see online documentation without Java Script and that's absolutely fine and I agree that documentation should be available for anyone and any configuration. Nevertheless, I would like to know what the Boost community thinks about having following features in the documentation... * Run the code online (allows to check library with one click) * Comments (allows commenting on the documentation) * Chats (allows discussing issues and solutions) Personally, I have found above features extremely useful when checking out other languages/libraries and therefore I have implemented solutions for C++ too. Please, check it out (JS is required)... http://boost-experimental.github.io/msm-lite http://boost-experimental.github.io/di If there is an interest I can provide generic solution to allow developers to write documentation using markdown (mkdocs) and simply integrate it with their libraries. Currently, theme is just slightly modified version of readthedocs, however Paul Fultz II has prepared a boost theme for Fit library ( https://github.com/pfultz2/mkdocs-boost) already and it might be easily integration with the JS facilities provided. Cheers, Kris

8 26

[ublas]Contribute about Toeplitz Matrix
by Shangtong Zhang 01 Mar '16

01 Mar '16

Hi David Bellot, It’s disappointed that boost was rejected by gsoc 2016. I was interested in ublas project, and have implemented parts of toeplitz matrix. Anyway I don’t want to abandon my implementation half way, so I’d like to continue on toeplitz matrix. Would you like to guide me to succeed in integrating toeplitz matrix into ublas? Thanks, Shangtong Zhang, Senior Student, School of Computer Science, Fudan University, PRC.

2 1

Re: [boost] [Boost-users] [Fit] upcoming formal review for Boost.Fit
by paul Fultz 29 Feb '16

29 Feb '16

On Sunday, February 28, 2016 12:23 PM, Edward Diener <eldiener(a)tropicsoft.com> wrote: > > >On 2/27/2016 11:16 AM, Vicente J. Botet Escriba wrote: >> Dear Boost community, >> >> The formal review of Paul Fultz II's Fit library starts on Wednesday, 2nd March and ends on 13th March. > >How do I generate the docs or run the tests for my local copy of Fit ? > You can build and run the tests by building the check target. For those unfamiliar with cmake, first configure the build directory with cmake: mkdir build cd build cmake .. cd .. Next build the check target using the native build system(such as make or msbuild). CMake can call the native build system to build the target 'check', like so: cmake --build build --config Release --target check Also, the library can be installed by invoking the 'install' target. The documentation needs to be built using mkdocs. You can install mkdocs and the boost theme with pip like this: pip install mkdocs mkdocs-boost Then to build the documentation, first `setup.py` must be run to extract the documentation and examples from the source code, then `mkdocs` can be invoked, like this: python setup.py mkdocs build -t boost And the documentation will be in the 'doc/html' directory. Paul

4 6

C++Now Student/Volunteers Call for Applications
by Jon Kalb 29 Feb '16

29 Feb '16

The Call for Applications for Student/Volunteers for C++Now 2016 (AKA BoostCon X) has been released: http://cppnow.org/2016-conference/announcements/2016/02/23/student-volunteer -program-accepting-applications.html The application submission deadline is March 16th. We are looking for students with a strong interest in C++. The opportunity is open to student of any level or any field of study. Jon Kalb Chair, C++Now 2016

1 0

[filesystem] cygwin paths
by Steven Watanabe 29 Feb '16

29 Feb '16

AMDG Does Boost.Filesystem have any support at all for cygwin paths? I know that you want to use Windows paths internally, but this creates problems for programs that get paths from an external source. In particular, it causes the regression tests to fail when running from cygwin. See https://github.com/boostorg/regression/issues/37. else if ( !locate_root.is_complete() ) { locate_root = ( fs::initial_path() / locate_root ).normalize(); } locate_root is created by locate_root = fs::path( *args_i ); i.e. it's taken directly from the command line. In Christ, Steven Watanabe

1 0