November 2018 - Boost - lists.preview.boost.org

Announcing LEAF, a new error handling library suitable for low latency applications
by Emil Dotchevski 15 Nov '18

15 Nov '18

LEAF (Low-latency Error Augmentation Framework) is a new error handling library which could possibly become the successor of Boost Exception, though LEAF can be used without exceptions too. Official documentation: https://zajo.github.io/leaf/ Features: - No dynamic memory allocations. - Associate objects of arbitrary types with any failure -- when it is initially reported or at a later time. - Compatible with std::error_code, errno and any other error handling API. - Use with or without exception handling. - Support for multi-thread programming. Emil

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Re: [boost] [Boost-users] [release] Boost 1.69.0 Beta 1 Release Candidate 1
by Marshall Clow 14 Nov '18

14 Nov '18

On Mon, Nov 12, 2018 at 4:30 PM Tom Kent via Boost-users < boost-users(a)lists.boost.org> wrote: > > On Mon, Nov 12, 2018 at 9:36 AM Marshall Clow via Boost-users < > boost-users(a)lists.boost.org> wrote: > >> The release candidates for the first 1.69.0 beta release are now >> available at: >> >> <https://dl.bintray.com/boostorg/beta/1.69.0.beta.1.rc1/source/> >> > As always, the release managers would appreciate it if you download >> the candidate of your choice and give building it a try. Please report >> both success and failure, and anything else that is noteworthy. >> > > toolset arch compile Link Execute > msvc-8.0 32 FAIL X X > msvc-8.0 64 FAIL X X > msvc-9.0 32 X X X > msvc-9.0 64 X X X > msvc-10.0 32 X X X > msvc-10.0 64 X X X > msvc-11.0 32 X X X > msvc-11.0 64 X X X > msvc-12.0 32 X X X > msvc-12.0 64 X X X > msvc-14.0 32 FAIL X X > msvc-14.0 64 FAIL X X > msvc-14.1 32 X X X > msvc-14.1 64 X X X > > Compile means that the b2 command completed without errors > Link means that visual studio was able to link a sample executable to a > library (libboost_thread-vcXXX-mt[-gd]-1_XX.lib) > generated > Execute means that the linked program executed without errors. > > Full build logs can be found here: > https://gist.github.com/teeks99/526cf2598d1697557e45e590ce9517be > > Lots of errors with msvc-8.0: > > compile-c-c++ > bin.v2\libs\log\build\msvc-8.0\release\link-static\threadapi-win32\threading-multi\trivial.obj > trivial.cpp > .\boost/parameter/aux_/arg_list.hpp(227) : error C2064: term does not > evaluate to a function taking 1 arguments > .\boost/parameter/aux_/arg_list.hpp(390) : see reference to class > template instantiation 'boost::parameter::aux::arg_list<TaggedArg,Next>' > being compiled > > If there is an easy way to fix arg_list.hpp that would be nice, but if > this is the time to stop build 8.0, that's fine too. > > Also numerous errors for many (all dlls?) of the libraries with msvc-14.0. > They all look something like this: > > > msvc.link.dll > bin.v2\libs\atomic\build\msvc-14.0\release\threading-multi\boost_atomic-vc140-mt-x32-1_69.dll > Creating library > bin.v2\libs\atomic\build\msvc-14.0\release\threading-multi\boost_atomic-vc140-mt-x32-1_69.lib > and object > bin.v2\libs\atomic\build\msvc-14.0\release\threading-multi\boost_atomic-vc140-mt-x32-1_69.exp > msvc.link.dll > bin.v2\libs\system\build\msvc-14.0\release\threading-multi\boost_system-vc140-mt-x32-1_69.dll > Creating library > bin.v2\libs\system\build\msvc-14.0\release\threading-multi\boost_system-vc140-mt-x32-1_69.lib > and object > bin.v2\libs\system\build\msvc-14.0\release\threading-multi\boost_system-vc140-mt-x32-1_69.exp > msvc.link.dll > bin.v2\libs\container\build\msvc-14.0\release\threading-multi\boost_container-vc140-mt-x32-1_69.dll > Creating library > bin.v2\libs\container\build\msvc-14.0\release\threading-multi\boost_container-vc140-mt-x32-1_69.lib > and object > bin.v2\libs\container\build\msvc-14.0\release\threading-multi\boost_container-vc140-mt-x32-1_69.exp > msvc.manifest.dll > bin.v2\libs\atomic\build\msvc-14.0\release\threading-multi\boost_atomic-vc140-mt-x32-1_69.dll > 'mt' is not recognized as an internal or external command, > operable program or batch file. > > if exist > "bin.v2\libs\atomic\build\msvc-14.0\release\threading-multi\boost_atomic-vc140-mt-x32-1_69.dll.manifest" > ( > call "bin.v2\standalone\msvc\msvc-14.0\msvc-setup.bat" x86 >nul > mt -nologo -manifest > "bin.v2\libs\atomic\build\msvc-14.0\release\threading-multi\boost_atomic-vc140-mt-x32-1_69.dll.manifest" > "-outputresource:bin.v2\libs\atomic\build\msvc-14.0\release\threading-multi\boost_atomic-vc140-mt-x32-1_69.dll;2" > ) > > ...failed msvc.manifest.dll > bin.v2\libs\atomic\build\msvc-14.0\release\threading-multi\boost_atomic-vc140-mt-x32-1_69.dll > bin.v2\libs\atomic\build\msvc-14.0\release\threading-multi\boost_atomic-vc140-mt-x32-1_69.lib... > ...removing > bin.v2\libs\atomic\build\msvc-14.0\release\threading-multi\boost_atomic-vc140-mt-x32-1_69.dll > ...removing > bin.v2\libs\atomic\build\msvc-14.0\release\threading-multi\boost_atomic-vc140-mt-x32-1_69.lib > > I'm on the fence if we should continue supporting 8.0, so if that doesn't > get fixed then no big deal. However the issue with (the build tool?) for > 14.0 seems like a showstopper for this RC. > > Do we have any idea why MSVC 14 is failing? -- Marshall (who has been distracted by WG21 stuff)

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What part of "The master branch is closed except by explicit permission" is confusing?
by Marshall Clow 14 Nov '18

14 Nov '18

That means "DO NOT COMMIT TO THE MASTER BRANCH" FULL STOP. I just turned on the auto-updating for the release, expecting two changes: * one from MPL * one from Function. Instead, I got updated from: * Update mpl from master * Update function from master * Update atomic from master * Update log from master * Update convert from master * Update iostreams from master You're making the release process harder. -- Marshall

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Re: [boost] [Boost-users] [release] Boost 1.69.0 Beta 1 Release Candidate 1
by Marshall Clow 14 Nov '18

14 Nov '18

On Wed, Nov 14, 2018 at 9:02 AM Edward Diener via Boost-users < boost-users(a)lists.boost.org> wrote: > On 11/14/2018 11:06 AM, Marshall Clow via Boost-users wrote: > > On Mon, Nov 12, 2018 at 4:30 PM Tom Kent via Boost-users > > <boost-users(a)lists.boost.org <mailto:boost-users@lists.boost.org>> > wrote: > > > > > > On Mon, Nov 12, 2018 at 9:36 AM Marshall Clow via Boost-users > > <boost-users(a)lists.boost.org <mailto:boost-users@lists.boost.org>> > > wrote: > > > > The release candidates for the first 1.69.0 beta release are now > > available at: > > > > <https://dl.bintray.com/boostorg/beta/1.69.0.beta.1.rc1/source/> > > > > As always, the release managers would appreciate it if you > download > > the candidate of your choice and give building it a try. Please > > report > > both success and failure, and anything else that is noteworthy. > > > > > > toolset arch compile Link Execute > > msvc-8.0 32 FAIL X X > > msvc-8.0 64 FAIL X X > > msvc-9.0 32 X X X > > msvc-9.0 64 X X X > > msvc-10.0 32 X X X > > msvc-10.0 64 X X X > > msvc-11.0 32 X X X > > msvc-11.0 64 X X X > > msvc-12.0 32 X X X > > msvc-12.0 64 X X X > > msvc-14.0 32 FAIL X X > > msvc-14.0 64 FAIL X X > > msvc-14.1 32 X X X > > msvc-14.1 64 X X X > > > > Compile means that the b2 command completed without errors > > Link means that visual studio was able to link a sample executable > > to a library (libboost_thread-vcXXX-mt[-gd]-1_XX.lib) > > generated > > Execute means that the linked program executed without errors. > > > > Full build logs can be found here: > > https://gist.github.com/teeks99/526cf2598d1697557e45e590ce9517be > > > > Lots of errors with msvc-8.0: > > > > compile-c-c++ > > > bin.v2\libs\log\build\msvc-8.0\release\link-static\threadapi-win32\threading-multi\trivial.obj > > trivial.cpp > > .\boost/parameter/aux_/arg_list.hpp(227) : error C2064: term does > > not evaluate to a function taking 1 arguments > > .\boost/parameter/aux_/arg_list.hpp(390) : see reference to > > class template instantiation > > 'boost::parameter::aux::arg_list<TaggedArg,Next>' being compiled > > > > If there is an easy way to fix arg_list.hpp that would be nice, > > but if this is the time to stop build 8.0, that's fine too. > > I have essentially backed out a fix on 'develop' for VC++8.0 which > intended to fix another problem with a multiple definitions linking > error, https://github.com/boostorg/mpl/pull/36. > > I would like to push this change to 'master'. It should fix your problem > above with VC++8.0. I will subsequently take another look at the > original fix and see if it can not be corrected. > If you're confident that this will fix the problem, then please do so. -- Marshall

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Re: [boost] [Boost-users] [release] Boost 1.69.0 Beta 1 Release Candidate 1
by Marshall Clow 14 Nov '18

14 Nov '18

On Wed, Nov 14, 2018 at 8:35 AM Edward Diener via Boost-users < boost-users(a)lists.boost.org> wrote: > On 11/14/2018 11:06 AM, Marshall Clow via Boost-users wrote: > > On Mon, Nov 12, 2018 at 4:30 PM Tom Kent via Boost-users > > <boost-users(a)lists.boost.org <mailto:boost-users@lists.boost.org>> > wrote: > > > > toolset arch compile Link Execute > > msvc-8.0 32 FAIL X X > > msvc-8.0 64 FAIL X X > > msvc-9.0 32 X X X > > msvc-9.0 64 X X X > > msvc-10.0 32 X X X > > msvc-10.0 64 X X X > > msvc-11.0 32 X X X > > msvc-11.0 64 X X X > > msvc-12.0 32 X X X > > msvc-12.0 64 X X X > > msvc-14.0 32 FAIL X X > > msvc-14.0 64 FAIL X X > > msvc-14.1 32 X X X > > msvc-14.1 64 X X X > [snip] > Lots of errors with msvc-8.0: > [snip] > This is a result of a change in MPL for VC++8. I will back out this change. > Appreciated. Please test locally, and we'll watch the bots. (Looks like we have two MSVC-8 bots) -- Marshall

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What is status of Boost.Sync?
by Mateusz Loskot 13 Nov '18

13 Nov '18

Hi, The library docs docs say it's been in Boost since 1.55. Boost master has no submodule for it. Boost develop has submodule for it If Sync was removed, why it is still in develop? If Sync was added, hence it is in develop, why the docs mention 1.55 and why it is not in master? What is the status of this thing? Best regards, -- Mateusz Loskot, http://mateusz.loskot.net

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Boost Test Matrix - no clang release builds?
by James E. King III 12 Nov '18

12 Nov '18

I was putting together some additional testing for a library and my CI jobs were failing in release mode. I was able to reproduce the issue locally. On examination of the boost test matrix however I was unable to see the same failures. When I dug into it a little bit more, it looks like the clang linux build jobs only build the default variant (debug), and therefore will not catch release-mode optimization issues when running the unit tests. Here's one of the job details: https://www.boost.org/development/tests/develop/teeks99-02-dc6-17-Docker-64… Given this matrix is the last line of defense before code is merged from develop to master, I'd suggest that the build jobs should all be targeting variant=release instead of variant=debug. The former directly impacts a release, and the latter does not. - Jim

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[hash] Missing boost::hash_value for std::forward_list
by Alexander Zaitsev 11 Nov '18

11 Nov '18

Hello. Recently I found that boost::hash_value has no overload for std::forward_list. Who can tell me - why? Is there any reason and/or limitation? Thank you. -- Best regards, Alexander Zaitsev

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[config] std::uncaught_exceptions
by Lorenzo Caminiti 11 Nov '18

11 Nov '18

Hello all, std::uncaught_exception (singular) is deprecated in C++17 and will be removed in C++20. std::std::uncaught_exceptions (plural) should be used instead. Will Boost.Config have a macro to detect if std::uncaught_exceptions is supported or not by the current compiler? (For example, Boost.Contract implementation uses std::uncaught_exception and it will need to use std::uncaught_exceptions on C++20 compilers instead.) Thanks. --Lorenzo

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[release] 1.69.0 closed for Beta
by Marshall Clow 10 Nov '18

10 Nov '18

The master branch is now closed for all changes except by permission for the Beta release. Also, remember to add your libraries' changes to the release notes at: < https://github.com/boostorg/website/blob/master/feed/history/boost_1_69_0.q… > You can preview the release notes at: <http://www.boost.org/users/history/in_progress.html> Thanks, -- The Boost Release Team

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