May 2011 - Boost - lists.preview.boost.org

BoostCon video mirror
by Jeroen Habraken 23 May '11

23 May '11

Hi, After becoming annoyed with blip.tv I've created a mirror of the BoostCon videos with the help of Nikhef (http://www.nikhef.nl/en/) It can be found at http://wipkip.nikhef.nl/events/BoostCon/2010/ and there's a quick overview over at http://vexocide.org/boostcon.html. If desired we'll gladly host the 2011 videos as well. Regards, Jeroen Habraken

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[process] boostcon code now on github
by Jeff Flinn 22 May '11

22 May '11

The source code as presented at the boostcon "Boost Process" session is now available at: https://github.com/JeffFlinn/boost-process Let me know if there are any problems accessing this as I'm a github newbie. Thanks, Jeff

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[btree] Status report
by Beman Dawes 22 May '11

22 May '11

The slides for my BoostCon "Proposed Boost B-tree Library" presentation are available: http://github.com/boostcon/2011_presentations/raw/master/tue/proposed_b_tre… Please be aware that while the library is progressing nicely, it isn't ready for production use: * There are outstanding bugs, particularly with variable length data. * Names and signatures may still change. * Documentation is barely started. * Build is failing on Mac OS X. That probably won't get fixed until after BoostCon. (Reported by Marshall Clow) That said, the response to the presentation was very positive and I'm actively continuing development. Anyone interested in the library is encouraged to take a look and give it a try. See http://github.com/Beman/Boost-Btree/blob/master/README for install instructions. Feedback welcome! Thanks, --Beman

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Invitation to connect on LinkedIn
by Илья Биин via LinkedIn 21 May '11

21 May '11

LinkedIn ------------Илья Биин requested to add you as a connection on LinkedIn: ------------------------------------------ Yuriy, I'd like to add you to my professional network on LinkedIn. - Илья Accept invitation from Илья Биин http://www.linkedin.com/e/bv6hcz-gnyytzl3-3y/uV9CsZkavY-uKU5A7C-1JbkavY-u5P… View invitation from Илья Биин http://www.linkedin.com/e/bv6hcz-gnyytzl3-3y/uV9CsZkavY-uKU5A7C-1JbkavY-u5P… ------------------------------------------ DID YOU KNOW that LinkedIn can find the answers to your most difficult questions? Post those vexing questions on LinkedIn Answers to tap into the knowledge of the world's foremost business experts: http://www.linkedin.com/e/bv6hcz-gnyytzl3-3y/ask/inv-23/ -- (c) 2011, LinkedIn Corporation

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Invitation to connect on LinkedIn
by Serge Blazhievsky 21 May '11

21 May '11

LinkedIn ------------ I'd like to add you to my professional network on LinkedIn. - Serge Serge Blazhievsky Staff Software Engineer at LiveOps San Francisco Bay Area Confirm that you know Serge Blazhievsky https://www.linkedin.com/e/bv6hcz-gny8eb0s-6p/isd/2953122588/yo_3A_ww/ -- (c) 2011, LinkedIn Corporation

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Boost statechart viewer
by Petr Šilhavík 20 May '11

20 May '11

Dear Boost-Statechart developers and users, I would like to ask you to try the tool that I am developing in my bachelor thesis and give me your opinion about it. The tool is able to visualize state machines that use Boost-Statechart library. It uses Clang and LLVM *(version 2.9)* for producing the output files that can be visualized using dot. Now it can work with states (not the orthogonal states), transitions and custom reactions. You can find more information about it on the web page of this project where you can also download the source codes and see some examples of the output pictures. http://rtime.felk.cvut.cz/statechart-viewer/ I am looking forward to your answers. Best regards Petr Silhavik

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[Unicode] Library info
by Mathias Gaunard 20 May '11

20 May '11

Just a remainder for people that followed my Unicode presentation at Boostcon: Library is available on the Boost Sandbox: <https://svn.boost.org/svn/boost/sandbox/SOC/2009/unicode> Documentation is available here: <http://mathias.gaunard.com/unicode/doc/html/>

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How to inspect state of boost::mt19937?
by Matthew Gwynne 20 May '11

20 May '11

Hi, Does anyone know how I can access the internal state of the Mersenne twister (boost::mt19937) easily? That is the 623 state bytes. I am looking to initialise a random number generator and then inspect the state to compare it to another system which apparently implements MT19937 but gives different results. If someone could point me in the right direction, that would be great! Thanks! Matthew Gwynne http://cs.swan.ac.uk/~csmg/

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Generic try, catch in boost::lexical_cast
by Jeroen Habraken 20 May '11

20 May '11

Hi, Whilst updating SVN today I spotted a change to boost::lexical_cast, https://svn.boost.org/trac/boost/changeset/71958, which introduces a try { } catch(...) { } construction. I'm curious as to why this catch-all is needed since it seems to be there to deal with boost::numeric_cast exceptions and whether it could lead to a std::bad_alloc being rethrown as a bad_lexical_cast. Kind regards, Jeroen Habraken

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[local] this_ or _this?
by Lorenzo Caminiti 19 May '11

19 May '11

Hello all, Boost.Local uses a special name `this_` to access the object `this` bound from the enclosing scope. Shall this name be `this_` or `_this` according to Boost practices? struct c { void g(int x) { ... } void f() { void BOOST_LOCAL_FUNCTION_PARAMS( (int x) (bind this) ) { this_->g(x); // <<<<<<<<< Shall this be `_this->g(x);` instead? ... } BOOST_LOCAL_FUNCTIO_NAME(l) ... } ... }; In particular, some library uses _ postfix for statements like mpl::if_ (not mpl::_if) while other uses _ prefix for variables like phoenix::local_names::_f (not local_names::f_). Thanks a lot. -- Lorenzo

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