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[Boost] [Hana] Formal review for Hana
by Glen Fernandes 10 Jun '15

10 Jun '15

Dear Boost community, The formal review of Louis Dionne's Hana library begins today,10th June and ends on 24th June. Hana is a header-only library for C++ metaprogramming that provides facilities for computations on both types and values. It provides a superset of the functionality provided by Boost.MPL and Boost.Fusion but with more expressiveness, faster compilation times, and faster (or equal) run times. To dive right in to examples, please see the Quick start section of the library's documentation: http://ldionne.com/hana/index.html#tutorial-quickstart Hana makes use of C++14 language features and thus requires a C++14 conforming compiler. It is recommended you evaluate it with clang 3.5 or higher. Hana's source code is available on Github: https://github.com/ldionne/hana Full documentation is also viewable on Github: http://ldionne.github.io/hana To read the documentation offline: git clone http://github.com/ldionne/hana --branch=gh-pages doc/gh-pages For a gentle introduction to Hana, please see: 1. C++Now 2015: http://ldionne.github.io/hana-cppnow-2015 (slides) 2. C++Con 2014: https://youtu.be/L2SktfaJPuU (video) http://ldionne.github.io/hana-cppcon-2014 (slides) We encourage your participation in this review. At a minimum, kindly state: - Whether you believe the library should be accepted into Boost * Conditions for acceptance - Your name - Your knowledge of the problem domain. You are strongly encouraged to also provide additional information: - What is your evaluation of the library's: * Design * Implementation * Documentation * Tests * Usefulness - Did you attempt to use the library? If so: * Which compiler(s) * What was the experience? Any problems? - How much effort did you put into your evaluation of the review? We await your feedback! Best, Glen

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[Boost] [Hana] Formal review for Hana next week (June 10th)
by Glen Fernandes 05 Jun '15

05 Jun '15

Dear Boost community, The formal review of Louis Dionne's Hana library starts Monday, 10th June and ends on 24th June. Hana is a header-only library for C++ metaprogramming that provides facilities for computations on both types and values. It provides a superset of the functionality provided by Boost.MPL and Boost.Fusion but with more expressiveness, faster compilation times, and faster (or equal) run times. To dive right in to examples, please see the Quick start section of the library's documentation: http://ldionne.com/hana/index.html#tutorial-quickstart Hana makes use of C++14 language features and thus requires a C++14 conforming compiler. It is recommended you evaluate it with clang 3.5 or higher.[1] Hana's source code is available on Github: https://github.com/ldionne/hana Full documentation is also viewable on Github: http://ldionne.github.io/hana To read the documentation offline: git clone http://github.com/ldionne/hana --branch=gh-pages doc/gh-pages For a gentle introduction to Hana, please see: 1. C++Now 2015: http://ldionne.github.io/hana-cppnow-2015 (slides) 2. C++Con 2014: https://youtu.be/L2SktfaJPuU (video) http://ldionne.github.io/hana-cppcon-2014 (slides) We encourage your participation in this review. At a minimum, kindly state: - Whether you believe the library should be accepted into Boost - Your name - Your knowledge of the problem domain. You are strongly encouraged to also provide additional information: - What is your evaluation of the library's: * Design * Implementation * Documentation * Tests * Usefulness - Did you attempt to use the library? If so: * Which compiler(s)? * What was the experience? Any problems? - How much effort did you put into your evaluation of the review? [1] A note for Windows users: As mentioned, Hana requires a C++14 conforming compiler. If you would like to try it, a VM with Linux and clang 3.5 is a fairly painless option. Some users have also reported success with using Clang 3.5 on Windows. If you would like assistance configuring the former option, feel free to reach out to us for this. Best, Glen

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[boost] [metaparse] Review period starts May 25th and ends June 7th
by Christophe Henry 19 May '15

19 May '15

Dear all, The review of the Metaparse library starts next Monday, May 25th and ends June 7th. Metaparse was written by Abel Sinkovics. Metaparse is a parser generator library for template metaprograms. The purpose of this library is to support the creation of parsers that parse at compile time. This library is intended to be used for embedded domain specific language creation for C++ and can help libraries provide a better interface. It is similar to Boost.Spirit, however while parsers built with Spirit parse at run-time, parsers built with Metaparse parse at compile-time. It makes it possible for library authors to provide an interface that follows the common notation of the problem domain of the library. (eg. SQL queries, grammars, etc written in their common notation instead of similar-looking C++ expressions). For example there is a (yet incomplete) interface for Boost.Spirit that makes it possible to write MPLLIBS_REGEX("^[abcd][3-8]\\.foo$") instead of bos >> set[as_xpr('a')|'b'|'c'|'d'] >> range('3','8') >> '.' >> 'f' >> 'o' >> 'o' >> eos and make the parser built with Metaparse generate the latter expression from the former one. (It can be found here: https://github.com/istvans/mpllibs/tree/master/libs/xlxpressive) Since the library is based on template metaprogramming, the DSLs can be used for type validation as well. This is demonstrated by the type-safe printf implementation ( http://abel.web.elte.hu/mpllibs/safe_printf/index.html) It type-checks the arguments of a printf call based on the format string and has zero runtime overhead compared to unchecked printf. Parsers can be constructed in a declarative manner and (even though this is template metaprogramming based) remain readable. The implementation reflects the grammar it parses (with additional elements for semantic actions). Even though the library requires the parser author to write template metaprograms, the development of parsers is well supported by tools like Metashell and MDB. An important aspect of parsers (built with this library or another one) is error reporting for invalid input. The library offers tools for the parser authors to be able to provide useful error messages in case of parsing errors. Here is an example error report by a parser built with Metaparse (the parser can be found in the Getting Started guide of the library): ..... x__________________PARSING_FAILED__________________x<1, 5, unpaired<1, 1, literal_expected<')'>>> .... It is an error report letting the developer know that a closing paren is missing at line 1, column 5 and the unclosed opening paren is in line 1, column 1. Metaparse can be downloaded from Github: https://github.com/sabel83/mpllibs/tree/master/mpllibs/metaparse And a very complete tutorial: http://abel.web.elte.hu/mpllibs/metaparse/getting_started.html The tutorial also offers the nice feature of a link to metashell for quick-starting trying out the library: http://abel.web.elte.hu/shell/metashell.html Boost.Msm v3 also implements a new compile-time strings based front-end called eUML2 to demonstrate the power of the library and the conciseness and expressiveness it allows. Please have a look at the documentation: https://htmlpreview.github.io/?https://raw.githubusercontent.com/boostorg/m… Everybody on this list is invited to participate in this formal review. I hope to see your review of Metaparse, including your vote on acceptance, and I welcome your participation in the ensuing discussions on the Boost developers' mailing list. Please always include in your review a vote as to whether the library should be accepted into Boost. Additionally please consider giving feedback on the following general topics: - What is your evaluation of the design? - What is your evaluation of the implementation? - What is your evaluation of the documentation? - What is your evaluation of the potential usefulness of the library? - Did you try to use the library? - With what compiler? - Did you have any problems? - How much effort did you put into your evaluation? A glance? A quick reading? In-depth study? - Are you knowledgeable about the problem domain? Regards, Christophe Review Manager _______________________________________________ Unsubscribe & other changes: http://lists.boost.org/mailman/listinfo.cgi/boost

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[gsoc15] This year's GSoC students
by Niall Douglas 27 Apr '15

27 Apr '15

Dear Boost, It is our pleasure to announce this year's winning GSoC students and projects: 1. Damian Vicino Topic: Safe Float (boost::safe_numerics<float>) Mentor: Robert Ramey 2. Rajaditya Mukherjee Topic: Boost uBLAS EigenSolver Mentor: David Bellot 3. Anurag Ghosh Topic: Boost Document Library Mentor: Antony Polukhin 4. Nikhar Agrawal Topic: Boost.Fixed-Point Mentor: Paul A. Bristow 5. Benedek Thaler Topic: Enhanced vector and deque containers Mentor: Thorsten Ottosen 6. Louis Dionne Topic: Improved compile-time associative data structures for Hana Mentor: Joel Falcou 7. Jakub Szuppe Topic: Improving Boost.Compute Mentor: Kyle Lutz Congratulations to these students for passing an exceptionally tough contest this year, and our thanks to the above mentors for making themselves available. Finally, thank you Google for another year of funding and to those open source orgs who released duplicate students to us, we appreciate it! Niall and Boris --- Boost C++ Libraries Google Summer of Code 2015 admin https://svn.boost.org/trac/boost/wiki/SoC2015

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[gsoc15] Please help rank GSoC 2015 student projects
by Niall Douglas 27 Mar '15

27 Mar '15

Dear Boost Community, The Google Summer of Code 2015 proposals for Boost are in, and we would deeply appreciate the community's help in ranking the proposals according to merit before the 6th of April. To vote, the process is easy: 1. Go to this page https://www.google-melange.com/gsoc/homepage/google/gsoc2015 and click the "Log in" button under Mentors and Administrators. 2. Now click "Create Profile" on the same page. Note that even if you registered last year, you must register again in 2015. Fill in the form. Note that after submitting it drops you at "Edit Profile", which is confusing. 3. Click "My Dashboard", then "Connect with organisations". 4. Choose "Boost C++ Libraries". 5. In the message box, write this: "I am a member of the Boost community and the email(s) I normally post to boost mailing lists with is <email>" filling in the email address(es) you normally use to post to boost mailing lists. This lets us verify that you are indeed a long standing member of the Boost community. 6. Once we approve your request, you will get an email with the subject "Welcome as organisation member". You can now return to the Dashboard on the GSoC website where there will be a new item "Proposals". 7. Work your way through as many of the 33 proposals as you can. You can score them using the stars at the bottom of each proposal page, taking care to read any comments by the mentors and students if present. PLEASE try to rank some of the lowest scored proposals, every year we get a lot of people who only rank the top five and don't bother with the rest. Try to score on the priority basis of: (i) ability to write quality C++, using the programming competency test or samples of programming the student supplied. (ii) proposal quality and your best estimate of the student's understanding of how best to solve the problem at hand. Bear in mind a gifted programmer with a strong work ethic but poor English may appear to not understand the problem as well as native English speakers, this is why we have asked for examples of their programming competency. (iii) if the student came early to the mailing lists to ask for help writing the proposal (the mentors who helped them with their proposals have usually indicated this in the private comments). (iv) usefulness/appropriateness of the feature or work being proposed. Remember a good GSoC is more about getting promising new engineers into Boost and C++ than necessarily getting code to pass Boost peer review in a single summer. 8. Optional: If a proposal looks especially great to you and you feel able to mentor a student this year, please slide the "wish to mentor" button. Just because a proposal already has willing mentors does NOT mean you should not add yourself - if you can substitute for an existing mentor, that may mean we use that mentor for another proposal. As you know, Google Summer of Code is usually worth $42,000 - $48,000 to Boost each year, and a successful GSoC raises our visibility and reputation in the wider open source community. Our thanks to you in advance for taking the time to vote. Niall Douglas Boris Schäling --- Boost C++ Libraries Google Summer of Code 2015 admin https://svn.boost.org/trac/boost/wiki/SoC2015

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Boost release 1.58.0 beta 1 is now available from SourceForge
by Marshall Clow 17 Mar '15

17 Mar '15

Boost release 1.58.0 beta 1 is now available from SourceForge See http://sourceforge.net/projects/boost/files/boost/1.58.0.beta.1/ <http://sourceforge.net/projects/boost/files/boost/1.58.0.beta.1/> This release contains three new libraries: • Endian: Types and conversion functions for correct byte ordering and more regardless of processor endianness. • Sort: includes spreadsort, a general-case hybrid radix sort that is faster than O(n*log(n)) • WinAPI: For details of what's in the release, see http://www.boost.org/users/history/version_1_58_0.html <http://www.boost.org/users/history/version_1_58_0.html>. Note that the links to files on this web page are for the final release - use the SourceForge link above to get the beta files. Please download the beta, give it a try, and report any problems you encounter. IMPORTANT NOTE: There is a bug with the build scripts; you have to specify the address-mode and architecture to b2. I used: ./b2 address-model=64 architecture=x86 (this will be fixed before the final release) Thanks, -- The Boost Release Team

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[gsoc15] Boost will be a mentoring org for 2015
by Niall Douglas 03 Mar '15

03 Mar '15

Dear Boost. I am very pleased to report that Boost has been accepted as a GSoC org for 2015. Student applications begin on Monday March 16th, in just under two weeks, and last ten days until Friday March 27th. If you haven't added your proposal ideas to https://svn.boost.org/trac/boost/wiki/SoC2015, now is the time to do so. If you would like to add your name to the ten other mentors who have made themselves available this summer, please do get in contact. Niall and Boris --- Boost C++ Libraries Google Summer of Code 2015 admin https://svn.boost.org/trac/boost/wiki/SoC2015

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VMD library accepted
by Steven Watanabe 27 Feb '15

27 Feb '15

AMDG The VMD library submitted by Edward Diener is ACCEPTED into Boost. I apologize for the long delay for this announcement. Thanks to everyone who participated in the formal review * Nial Douglass * Bjorn Reese * Rodrigo Madera * Zhou Zhenghui * Matt Calabrese * Paul Mensonides Reviews for the library were generally positive. The library was considered to be a useful set of tools for macro programmers. Paul expressed concern about the way the the library handles v-sequences and v-identifiers. After some discussion, Edward has agreed that the interface could be significantly improved. Work Items: * Add examples and improved motivation in the documentation * Update the v-identifier/v-sequence interface based on Paul's comments * Fix inaccurate statements about Boost.Preprocessor per Paul In Christ, Steven Watanabe

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[gsoc15] Org application closes on Friday 20th
by Niall Douglas 17 Feb '15

17 Feb '15

Three days remain until the GSoC org application closes on Friday 20th of April. As can be seen at https://svn.boost.org/trac/boost/wiki/SoC2015, we have just SIX project proposals and FIVE mentors who have publicly made themselves available on the ideas list this year. This is significantly lower than this time last year. If you would like to attract students to work on your Boost library in 2015, please consider adding a formal project idea to the list above before Friday. If you would like to mentor in some topic or field, please make yourself known to us so we can add you to the list of available mentors for 2015. Oh, and don't forget to mention the fields you are interested in! Thanks, Niall and Boris --- Boost C++ Libraries Google Summer of Code 2015 admin https://svn.boost.org/trac/boost/wiki/SoC2015

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[gsoc15] Google Summer of Code 2015 ideas needed before 20th Feb
by Niall Douglas 10 Feb '15

10 Feb '15

Dear Boost community, The Google Summer of Code 2015 organisation application period has begun. We need project ideas for our ideas page at https://svn.boost.org/trac/boost/wiki/SoC2015, plus anyone willing to mentor. Last year we got eight slots, the previous year seven slots. Let's try to get back to ten slots for 2015! Niall & Boris --- Boost C++ Libraries Google Summer of Code 2015 admin https://svn.boost.org/trac/boost/wiki/SoC2015

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