August 2009 - Boost - lists.boost.org

factory.hpp missing
by Felipe Magno de Almeida 31 Aug '09

31 Aug '09

Hi, AFAIK, the functional/factory.hpp was accepted in boost a long time ago. But never seem to have made into svn. Does anybody know why? Regards, -- Felipe Magno de Almeida Sent from my Nokia E71

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Re: [boost] Proposal: MapReduce library (single machine)
by Mateusz Berezecki 31 Aug '09

31 Aug '09

Hi , I've just joined this mailing list because of this particular discussion :-) >> 2) have a plan so that the library can eventually range from >> working on 1 multi-core system to distributed >This is the eventual goal, and I have designed the library to be extensible >to be able to do this in the future. With the policy based designed, making >use of the open source projects that you mention should be non-intrusive; >the library allows the user to supply a handler for the intermediate files >(to use kosmosfs or hypertable, for example) I'm going to give it a spin as it happens I'm already having a half-baked distributed backend lacking a mapreduce library for both hypertable and KFS and report back. But this is interesting! Can't stop thinking about it now :-) best, Mateusz

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Help with Boost Preprocessor
by Emil Dotchevski 30 Aug '09

30 Aug '09

Let's say I have a class template functor like this: struct func { typedef void result_type; template <class A1,class A2,class A3> void operator()( A1, A2, A3, int x ) { } }; Given a list of types, I want the function instantiated and called for all permutations of the types in the list; the additional argument(s), x, just need to be forwarded the same for all instances. Actually I got it working, see http://codepad.org/tnYTy9Iw. I don't think that my solution is very good though. First, it has some run-time overhead due to the use of boost::bind in fwd1 and fwd2 (see link above.) Second, I'd like the macro that defines the type list not to be hard-coded in fwd1 and fwd2. Is this possible? Emil Dotchevski Reverge Studios, Inc. http://www.revergestudios.com/reblog/index.php?n=ReCode

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[1.40.0] Release candidates available
by Beman Dawes 30 Aug '09

30 Aug '09

The 1.40.0 release candidates are available. See http://boost.cowic.de/rc/ Please download, give it a try, and then report back either success or failures. These will get pushed out to SourceForge once we've had enough reports to be sure the packages are good. TIA, --Beman

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[1.40] Release of PDF docs for Boost-1.40 now available.
by John Maddock 29 Aug '09

29 Aug '09

For those who prefer printable docs, PDF builds of the docs from Boost-1.40 are now available from the usual sourceforge download site: https://sourceforge.net/projects/boost/files/ (look under the boost-docs subtree). Direct links are as follows: zip (19.2Mb): https://sourceforge.net/projects/boost/files/boost-docs/1.40.0/boost_pdf_1_… tgz (19.7Mb): https://sourceforge.net/projects/boost/files/boost-docs/1.40.0/boost_pdf_1_… 7z (17.9Mb): https://sourceforge.net/projects/boost/files/boost-docs/1.40.0/boost_pdf_1_… Please note that not all libraries have documentation suitable for automatic PDF generation yet, libraries covered are: Accumulators Any Array Asio Bimap Bjam Boost.Build Range Boostbook TR1-complex number algorithms Concepts Config Conversion Date_time Foreach Function FunctionTypes Fusion Hash Interprocess Intrusive Iterator Lambda Math (special functions and distributions) Math-gcd MPI Octonion Optional Phoenix ProgramOptions Proto Python tutorial Quaternion Quickbook Ref Regex ScopeExit Signals Signals2 StaticAssert StringAlgo Thread TR1 Tribool TypeTraits Typeof Units Unordered Variant Xpressive Enjoy! John Maddock.

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RFC - Updated MapReduce library
by Craig Henderson 29 Aug '09

29 Aug '09

I have considerably revised and updated my MapReduce library and committed the changes to the Sandbox. I've also uploaded to the Vault for easy access http://www.boostpro.com/vault/index.php?action=downloadfile <http://www.boostpro.com/vault/index.php?action=downloadfile&filename=mapred uce_0_3.zip&directory=&> &filename=mapreduce_0_3.zip&directory=& Library documentation to date is available along with the code, or on my site at http://craighenderson.co.uk/mapreduce/ I am very interested to hear any comment on design, code, performance or any other area. Regards -- Craig Craig Henderson <http://craighenderson.co.uk/> http://www.craighenderson.co.uk http://www.siteupdatenotification.com

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Boost.Multimethod proposal
by Nicholas Howe 29 Aug '09

29 Aug '09

I have written a C++ Multimethod library and propose adding it to Boost. I see that the addition of such a library to Boost has been proposed in the past, and been met with relative enthusiasm. However, it has not been done. Does anyone know why previous attempts were aborted? I want to be sure there is a demand before starting the somewhat daunting task of boostifying and documenting my library. The library works by requiring clients to register user types of interest, and specify their public base classes. This allows traversing class hierarchies at run-time. A multimethod uses this information to perform run-time overload resolution on registered methods to determine the best implementation based on the type-id of each parameter. There are no restrictions on the types of a multimethod's parameters, although only single indirections to user types will behave polymorphically. The library is designed to behave well when used by other libraries. To declare a new method, the client is required to derive a new type from the multimethod type. This allows multiple multimethods with the same parameters in different libraries. It also allows encapsulation of each multimethod implementation within each library, reducing the chance of conflict between different libraries that were compiled with different versions of the multimethod library. Is there any interest in including my library in Boost? Nick

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Boost C++ Math Toolkit
by Paul A. Bristow 29 Aug '09

29 Aug '09

I am pleased to announce publication of the Boost Math Toolkit PDF documentation as a book (in CD format initially). Boost C++ Math Toolkit, ISBN 0-9504833-2-X John Maddock, Paul A. Bristow, Hubert Holin, Xiaogang Zhang, Bruno Lalande, Johan Råde, Gautam Sewani, Thijs van den Berg Publisher: hetp Publication date: 1 Sep 2009 Suggested Classification 519.2-dc22 If you are using this software, and writing academic or scholarly articles, you can reference it as above. (If you an author you can add it to your CV ;-) In the unlikely event that anyone would like this as a CD, I can of course provide it (at a modest cost) - but then you can download everything for free from www.boost.org or www.sourceforge.net. The CD also includes a Windows Installer program for the Distribution Explorer (but you can also download from http://distexplorer.sourceforge.net/) Please tell me if you would like to be able to buy a printed version. Thank you. Paul --- Paul A. Bristow Prizet Farmhouse Kendal, UK LA8 8AB +44 1539 561830, mobile +44 7714330204 pbristow(a)hetp.u-net.com

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[mpl] minor typo in for_each documentation
by Emil Dotchevski 29 Aug '09

29 Aug '09

See http://www.boost.org/doc/libs/1_39_0/libs/mpl/doc/refmanual/for-each.html, the example at the bottom: shouldn't the 'n' be '\n'? Emil Dotchevski Reverge Studios, Inc. http://www.revergestudios.com/reblog/index.php?n=ReCode

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GTL Questions
by Tom Brinkman 28 Aug '09

28 Aug '09

Just to get things rolling, a few softball questions. Could you give a short history of this library? How long has it been in development? Is it in current use? If so, how and where. Does this library have any affiliation with Intel? Thanks for submitting this greatly needed library. A lightweight, boost friendly geometry library would be very useful. Tom

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