October 2022 - Boost - lists.boost.org

CMake Announcement from Boost Steering Committee
by Jon Kalb 13 Aug '24

13 Aug '24

The libraries produced by the Boost community have had a greater impact on the way that the C++ community writes code than any other library implementation. The focus of the Boost community will always be on the libraries, but it is undeniable that we are dependent on and often limited by the infrastructure of our trade. Years ago, the move to Git was contentious; yet, it was required to improve development. In a similar vein our build system has become an impediment for many developers and users, existing and prospective. Therefore, we, the Steering Committee, announce to the Boost community our desire and intent to move Boost’s build system to CMake for users and developers alike. We are soliciting comments and proposals from the community to guide the process and the goals. Our desire is that the community can come to consensus by the end of the calendar year with a vision of supporting users and developers. We understand that the actual process of achieving the end goal will be long, time consuming, and not without its share of conflict. We also recognize that the Boost community is comprised of bright and passionate individuals that are eager to get involved and help get work done. The members of the Steering Committee have been encouraged by the discussions and activity surrounding CMake on the mailing lists over the years and know that many people have voiced visions. We hope that each of you rejoins the discussion to support this initiative and contributes to the common goal of improving Boost’s integration into the broader C++ ecosystem. For the Boost Steering Committee, Jon Kalb, Chair jonkalb(a)boost.org

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Boost Governance?
by René Ferdinand Rivera Morell 10 Aug '24

10 Aug '24

A disclaimer: I write this solely as a Boost Library author. And not in any other capacity or representing any other interest. It's now been at least a year since Boost switched from the Software Freedom Conservancy to the Boost Foundation for its governance organization. But have people noticed any difference? Did you know that switch happened? Did you know that they held an election for the Board of Directors and for the Officers? Do you know when that election happened? Do you know who got elected? Do you know how they were selected? Do you know what their responsibilities are? Do you know what their bylaws are? Do you know their financials? More importantly: Did you answer "no" to any of those questions? As a library author, I can say I definitely answered no to many of those questions. This is a problem. As authors, without asking, we should know those answers from the organization that governs our work. We should have input into how that organization governs. In other words, we deserve open and transparent governance; not the closed and opaque status quo. -- -- René Ferdinand Rivera Morell -- Don't Assume Anything -- No Supone Nada -- Robot Dreams - http://robot-dreams.net

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Library proposal - indexed_array
by Julien Blanc 12 Oct '23

12 Oct '23

Hi, I've written and released a (rather small) library which allows defining arrays with arbitrary index mechanisms (hence the name, indexed_array). This especially allows indexing with scoped enums, use non zero-starting indexes, or use sparse indexes. This is not a view, but an array in the sense that it owns the data, and provides the same guarantees and functionalities as std::array, such as triviality propagation, being able to reside in read-only program sections, etc. It also supports multidimensional indexing, and provides an indexed_span template class to access lower dimension content (which can be used outside indexed_array). Finally, it provides an opt-in safer way to initialize the array content, which is especially useful when using complex and/or changing indexing schemes (like based on externally generated files). The library is available here: https://github.com/Julien-Blanc-tgcm/indexed_array And the doc is here: https://julien-blanc-tgcm.github.io/indexed_array/ It requires C++17 and mp11, and has first-class support for describe-d enums. If there is some interest, i'd like to propose it for inclusion in boost. So i'm looking for people who would endorse it. Thanks and best regards, Julien

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Decommissioning Trac (svn.boost.org)
by Glen Fernandes 01 Feb '23

01 Feb '23

We have Trac in read-only mode after we migrated to Git, but we're still paying for the server. Do people still want to preserve any part of the content in some way? The wiki aside, there are old issues, with comments, and some of them have patches attached. Peter had the idea of generating static HTML content from Trac and hosting that on an archive section on boost.org. (I don't know how difficult this is to do). Thoughts? Suggestions? Glen

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Regression Results Not Updating
by Tom Kent 15 Jan '23

15 Jan '23

The results from the pages at: https://www.boost.org/development/tests/develop/developer/summary.html https://www.boost.org/development/tests/master/developer/summary.html Have not updated in almost a month. Can someone check on the process that manages this? Thanks, Tom

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Boost.Text is looking for a (mini-)review manager
by Zach Laine 07 Dec '22

07 Dec '22

I've made all the recommended changes to Boost.Text that came up in the review. Glen, the previous review manager, recommended a mini review of Boost.Text once I'd made those changes. If you'd like to manage the mini-review, please let me know. For everyone, including potential reviewers and review managers, here are the major changes: * All the specific review feedback issues have been addressed. * The string layer is now gone. * The text layer got a major re-work. It is now a set of template-based adaptors (basic_text<>, vs. a text typedef. etc.), which lets everyone get what they want. You can change the underlying storage type (including whatever allocator you prefer), select UTF-8 or UTF-16, and change the normalization form. Glen recommended I drop this layer, but the library is way less useful without this stuff, and these changes address all the concerns raised about the text layer in the review. The updated docs can be found here: https://tzlaine.github.io/text/doc/html/index.html Oh yeah, and I added concept constraints to the whole library when you build in C++20 mode. Zach

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Build Issue - URL - msvc-14.0
by Tom Kent 05 Nov '22

05 Nov '22

In preparation for the upcoming lockdown and release, I just grabbed the latest snapshot from here: https://boostorg.jfrog.io/artifactory/main/master/boost_1_81_0-snapshot.tar… I ran it through the build process and got some issues with boost::url running on msvc-14.0. Some examples of them are: D:\RB\boost_1_81_0\boost/url/param.hpp(886): error C2134: 'boost::urls::grammar::string_view_base::string_view_base': call does not result in a constant expression D:\RB\boost_1_81_0\boost/url/param.hpp(886): note: failure was caused by call of undefined function or one not declared 'constexpr' The full output log is here: https://gist.github.com/teeks99/8d14da5b50cffda13f9ad5e23a8d80aa Tom

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Does ASIO really still uses reactor instead of proactor on some OSes or is documentation just outdated?
by Ivan Matek 29 Oct '22

29 Oct '22

If you go to https://www.boost.org/doc/libs/1_80_0/doc/html/boost_asio/overview/core/asy… you will see that it says: * On many platforms, Boost.Asio implements the Proactor design pattern in terms of a Reactor, such as select, epoll or kqueue. This implementation approach corresponds to the Proactor design pattern as follows: * *[...]* * On Windows NT, 2000 and XP, Boost.Asio takes advantage of overlapped I/O to provide an efficient implementation of the Proactor design pattern. This implementation approach corresponds to the Proactor design pattern as follows: * I am unfortunately not a pattern or OS expert, but I would expect that on every modern OS proactor can be implemented without using reactor, e.g. see *https://stackoverflow.com/a/57451551/700825 <https://stackoverflow.com/a/57451551/700825>* The fact that mentioned Windows are NT, XP and 2000 also furthers my suspicion that docs are outdated.

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Boost.StaticString
by Vinnie Falco 29 Oct '22

29 Oct '22

Alan de Freitas has generously stepped up to maintain Boost.StaticString in the absence of Krystian. -- Regards, Vinnie Follow me on GitHub: https://github.com/vinniefalco

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1.81.0 closed for new libraries and breaking changes
by Glen Fernandes 28 Oct '22

28 Oct '22

Next deadline: On 2022-11-02 Boost 1.81.0 closes for major code changes. Still open for serious problem fixes and docs changes without release manager review. - Boost release team

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