- Boost - lists.preview.boost.org

Re: [boost] [exception] uncaught_exception_count, scope(failure), scope(success)
by Evgeny Panasyuk 31 Mar '13

31 Mar '13

>06.02.2013 2:57, Emil Dotchevski: >>> While scope(exit) is some kind of ad-hoc replacement for RAII wrappers, >>> scope(failure) and scope(success) are not. >>> Nowadays scope(failure) and scope(success) are emulated in C++ via >>> ScopeGuard idiom. >> >> Could you clarify what does uncaught_exceptions_count() use look like? >> How is it different scope guard? > > [skipped] There is proposal by Herb Sutter for add similar functionality to ISO - std::unwinding_exception http://isocpp.org/blog/2013/03/n3614-unwinding-exception , http://isocpp.org/files/papers/N3614.pdf which is aimed on providing basis for implementation of scope(failure)/scope(success). Emil, could you please clarify what is your position on adding uncaught_exception_count into Boost.Exception? ( https://github.com/panaseleus/stack_unwinding/blob/master/boost/exception/u… ) -- Evgeny Panasyuk

1 0

Experimenting with modular Boost
by Jonathan Wakely 30 Mar '13

30 Mar '13

The instructions at https://svn.boost.org/trac/boost/wiki/TryModBoost seem to be bogus, apparently because the cloned repo contains no .gitmodules file so the 'git submodule update --init' command does nothing, and I then get an error for the last step: $ cmake -P forward_headers.cmake CMake Error: Error processing file:forward_headers.cmake I'm "only" using Git 1.7.12 but I don't think that's the problem. The older instructions at https://svn.boost.org/trac/boost/wiki/CMakeModularizationStatus refer to a non-existent http://github.com/boost-lib/boost URL, so they don't work either. I've looked at several other wiki pages, but they're also inconsistent or don't help. Is there any accurate documentation for modular Boost? How does someone try modular boost?

2 1

[Filesystem] v3 path separator changes
by Alexander Lamaison 30 Mar '13

30 Mar '13

I'm finally getting round to moving to Filesystem v3 and now my code is breaking all over the place. The cause is the output of string() on Windows which has changed behaviour. I'm manipulating Unix paths for use over SFTP, but doing so on Windows. For instance I might want to append "c" to the Unix path "/a/b". path p("/a/b"); p /= "c"; cout << p.string(); In version 2 this would output "/a/b/c" but now it produces "/a/b\c". Why the breaking change? I'm trying to understand the rationale behind many of the v3 changes which [1] and [2] don't even begin to cover. [1] http://www.boost.org/doc/libs/1_53_0/libs/filesystem/doc/v3.html [2] http://www.boost.org/doc/libs/1_53_0/libs/filesystem/doc/deprecated.html Alex -- Swish - Easy SFTP for Windows Explorer (http://www.swish-sftp.org)

8 33

[switch generator] status
by Jeff Flinn 29 Mar '13

29 Mar '13

Does anyone know the current status of Steven's switch generator library, I see it was reviewed/accepted in 2008, but I don't see it in trunk or any release. Thanks, Jeff

2 1

[config] gcc implemented N3276 decltype
by Michel Morin 29 Mar '13

29 Mar '13

gcc 4.8.1 and 4.9.0 will support N3276 decltype. ( http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52748 ) May I commit an attached patch? Regards, Michel

3 4

Helping With Boost?
by Thales 29 Mar '13

29 Mar '13

Hello! I'm a C++ programmer (Windows 7 platform, Visual Studio) and I'm interested in helping with this project. I've downloaded the latest from the repository and have built the Win32 libraries. Is there anything I can try my hand at to get started? :-) Thanks for any feedback, ...John

4 5

GSoC: Getting ready for the application
by Boris Schaeling 27 Mar '13

27 Mar '13

Can those who planned to add a proposal but didn't do yet update https://svn.boost.org/trac/boost/wiki/SoC2013 as soon as possible? And can those who added a proposal check it one last time? Andrew reminded me that Boost wasn't accepted last year because we had a superficial list of ideas without realistic goals and expectations. We should be able to increase our chances if we document actual requirements and possibly design approaches. According to Google they look extensively at every org's ideas page. So this is really important. Thanks, Boris

5 4

Serialise on Mac OSX 10.8, XCode and GCC
by Tim Burgess 27 Mar '13

27 Mar '13

Hi, I have an XCode c++ project that uses the static serialisation library (as well as FileSystem, IOStream and System). The project started out on XCode 3.6 on Mac OSX 10.6, where it successfully built and ran using Boost 1_49_0, built against Apple's 10.6 SDK. However, I needed to use the XCode debugger to track down some run-time issues and found I couldn't access the debugger on this version of XCode (I'm blind and have to use the VoiceOver utility to gain access to my Mac). Having taken advice, I upgraded to Mac OSX 10.8, SDK 10.8 and XCode 4.6, which solves my debugging issue. Unfortunately, my project no longer links correctly. The linker complains that it can't find symbols for my architecture (x86_64) - the messages are in the the form: "boost::archive::basic_xml_iarchive<boost::archive::xml_wiarchive>::load_sta rt(char const*)", referenced from: "boost::archive::basic_xml_iarchive<boost::archive::xml_wiarchive>::load_ove rride(boost::archive::version_type&, int)", referenced from: "boost::archive::basic_xml_iarchive<boost::archive::xml_wiarchive>::load_ove rride(boost::archive::class_id_type&, int)", referenced from: (I've truncated the output here for brevity). I get no linker errors for any of the other Boost binaries - it's only the serialisation library that creates a problem. The project is configured to compile with the llvmgcc42 compiler, as it also uses the wxWidgets libraries, which don't support compilation using clang. Boost versions tried: 1_50_0, 1_52_0 and 1_53_0. Boost build options tried: 1 - Default (no options specified) - this worked on Mac OSX 10.6, Snow Leopard. 2 - As follows: macosx-version=10.3 macosx-version-min=10.6 architecture=combined threading=multi link=static address-model=32_64 3 - As follows: architecture=combined address-model=32_64 I'm a novice using Boost and the Mac, so would appreciate any suggestions as to how I can resolve this issue. Best wishes. Tim Burgess Raised Bar Ltd. Tel: +44 (0)1827 719822 Web: http://www.raisedbar.net We can supply Roland and Avid products with specialist pre and post-sales support for visually-impaired users - just drop us a line for a quote. Don't forget to sign our on-line petition to lobby for improved access to music education and music technology at: http://www.raisedbar.net/petition.htm

6 18

Re: [boost] [Boost-commit] svn:boost r83608 - trunk/status
by Steven Watanabe 27 Mar '13

27 Mar '13

AMDG On 03/27/2013 12:13 PM, chhenning(a)gmail.com wrote: > > Modified: trunk/status/Jamfile.v2 > ============================================================================== > --- trunk/status/Jamfile.v2 (original) > +++ trunk/status/Jamfile.v2 2013-03-27 15:13:44 EDT (Wed, 27 Mar 2013) > @@ -86,6 +86,7 @@ > fusion/test # test-suite fusion > geometry/test # test-suite geometry > gil/test # test-suite gil > + gil/io/test # test-suite gil::io This just broke the regression tests: ERROR: rule "jpeg.init" unknown in module "toolset". /run/media/steven/regression/tools_bb/build/project.jam:995: in using ../libs/gil/io/test/Jamfile.v2:12: in modules.load In Christ, Steven Watanabe

2 1

Adding gil extensions to boost_release
by Christian Henning 27 Mar '13

27 Mar '13

Hi all, quick question: Is the release branch open? Thanks, Christian

4 8