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SVN problem with commit
by Paul A Bristow 03 Aug '07

03 Aug '07

I am unable to commit any file or files to Boost-sandbox\math_toolkit with the following message. (I have tried an update and it does it OK). Modified: I:\Boost-sandbox\math_toolkit\boost\math\policy\policy.hpp Sending content: I:\Boost-sandbox\math_toolkit\boost\math\policy\policy.hpp Error: Commit failed (details follow): Error: MERGE request failed on '/svn/boost/sandbox/math_toolkit/boost/math/policy' Error: 'pre-commit' hook failed with error output: (nothing follows error output:) Update to I:\Boost-sandbox\math_toolkit\boost\math\policy\error_handling.hpp Completed: At revision: 38396 Modified: I:\Boost-sandbox\math_toolkit\boost\math\policy\error_handling.hpp Sending content: I:\Boost-sandbox\math_toolkit\boost\math\policy\error_handling.hpp Error: Commit failed (details follow): Error: Cannot write to the prototype revision file of transaction '38396-1' because a previous representation is currently being written by this process Any suggestions? Patience and re-try? Thanks Paul --- Paul A Bristow Prizet Farmhouse, Kendal, Cumbria UK LA8 8AB +44 1539561830 & SMS, Mobile +44 7714 330204 & SMS pbristow(a)hetp.u-net.com

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Missed 1.34.1 announcement site?
by Daryle Walker 03 Aug '07

03 Aug '07

Our SourceForge project page at <http://sourceforge.net/projects/boost/> doesn't (yet) have an announcement about 1.34.1. -- Daryle Walker Mac, Internet, and Video Game Junkie darylew AT hotmail DOT com

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[multi_index][ann][rfc] Preview of Boost.MultiIndex 1.35 release
by Joaquín Mª López Muñoz 03 Aug '07

03 Aug '07

Hello, I've uploaded a preview version of Boost.MultiIndex as planned for shipping with Boost 1.35 --I don't think there'll be time to include more major features. Download at the Vault: http://www.boost-consulting.com/vault/index.php?&direction=0&order=&directo… (file multi_index.zip) You can try the preview with Boost 1.34.x; if you want to test the newly added interoperability with Boost.Interprocess, you'll have to use a snapshot of Boost CVS, where this library currently lies. The new important features: * New global_fun predefined key extractor. * Added iterator_to facility. * Included support for non-standard allocators such as those of Boost.Interprocess, which makes multi_index_containers placeable in shared memory. Don't miss example #12 at the examples section, which fully exercises this new capacity. * New versions of modify and modify_key with rollback, as described in the tutorial. * Indices provide the new cbegin, cend and, when applicable, crbegin and crend member functions, in accordance with the latest drafts of the next revision of the C++ standard. A longer list of changes can be consulted at the release notes page. I'd be extremely grateful if you can try this preview version and report any problems you find. As we're still in time to discuss the new features, do not hesitate to comment on these and bring forward your proposals for improvement. Thank you very much for your interest in Boost.MultiIndex, Joaquín M López Muñoz Telefónica, Investigación y Desarrollo

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[Accumulators]multiple statistic instances
by Hugo Duncan 03 Aug '07

03 Aug '07

I am trying to create an IIR filter (see e.g., http://en.wikipedia.org/wiki/IIR) using the delay buffer implementation recently discussed. To do this I need two delay buffers for my filter, one for the samples and one for the computed outputs. I have tried templating my delay buffer with a discrimating type, but I can't get more than one buffer instantiated. ie the following creates only one buffer instantation. accumulator_set<int, stats< tag::delay<>, tag::delay<my_other_delay> > > acc( tag::delay<>::cache_size = 3, tag::delay<my_other_delay>::cache_size = 4 ); Is this worth perservering with? any hints? or would it be better to wait for the next version of accumulators?

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Re: [boost] [Subversion] Library authors, please read
by dan marsden 02 Aug '07

02 Aug '07

The Fusion files were all resurrections as well. They're removed again now. Thanks for the heads up Dan ___________________________________________________________ Yahoo! Mail is the world's favourite email. Don't settle for less, sign up for your free account today http://uk.rd.yahoo.com/evt=44106/*http://uk.docs.yahoo.com/mail/winter07.ht…

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Cast free NULLs in algorithms
by Michael Marcin 02 Aug '07

02 Aug '07

Hello, I have something like: class A; boost::array<A*,10> the_array; std::fill( the_array.begin(), the_array.end(), NULL ); Which wont compile (at least under Visual Studio 2005) without a cast for NULL... I've had this problem before and decided to try to find an easy cast free expressive solution for it. After a few minutes I came up with: namespace detail { struct null_ptr_impl { template< typename T > operator T* () const { return static_cast<T*>(0); } }; } // end namespace detail const detail::null_ptr_impl null_ptr; std::fill( the_array.begin(), the_array.end(), null_ptr ); Does this exist somewhere already? Is it a good solution? Thanks, Michael Marcin

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[type_traits] missing boost::is_complex<T>
by dherring＠ll.mit.edu 02 Aug '07

02 Aug '07

Whatever happened to boost::is_complex<T>? It looks like the idea was accepted back in 2005, but nobody ever added it to trunk... http://thread.gmane.org/gmane.comp.lib.boost.user/13692/focus=13696 http://svn.boost.org/trac/boost/ticket/492 Thanks, Daniel

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about: tutorial for using boost 'Unit Test Framework'
by Jagsir Singh 02 Aug '07

02 Aug '07

Hi All, I am sure, this might allready be answered here on the list. Is there a simple step by step tutorial for using the Unit Test Framework, and the bjam,(simplest jam file). It will be highly appreciated. Is there a searchable mailing list for boost some place ? in other words, --can you search through the mailing list archives ? -- /*/Jagsir /*/////////////

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[Report] 0 regressions on RC_1_34_0 (2007-08-02)
by Douglas Gregor 02 Aug '07

02 Aug '07

Boost Regression test failures Report time: 2007-07-30T10:21:37Z This report lists all regression test failures on release platforms. Detailed report: http://engineering.meta-comm.com/boost-regression/CVS-RC_1_34_0/developer/i… No failures! Yay!

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Looking for project
by Sergey Razin 02 Aug '07

02 Aug '07

Hello! My name is Sergey Razin, and it was recommended to me by one of the Boost peoplzz to contact the dev. list on that question. I've e-mailed a few days ago but did not see my topic/request being included in the e-mails, therefore I've decided to try again. As I started to have more free time I would like to contribute it to Boost as a huge fan of C++ as well as Boost user. I was wondering if any of the current Boost projects require help? I will be glad to jump in and help or start a new one as well. I am looking forward to contributing to Boost as well as to help open source community with such a great set of libraries. Thank you! Sergey A. Razin, Ph.D. Software Engineer _________________________________________________________________ See what you’re getting into…before you go there. http://newlivehotmail.com

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