March 2014 - Boost - lists.preview.boost.org

Getting started with Boost( GSOC)
by M. Lalit 05 Mar '14

05 Mar '14

Hi Guys, I'm new to Open-Source Development.I want to contribute to Boost this year through GSOC-2014.I looked at the suggested projects this year at https://svn.boost.org/trac/boost/wiki/SoC2014 and liked Boost.Document Project and therefore I would like to work on it for this years GSOC.Please help me guys on how to get started for developing that project.I mean basically what codebase to understand etc.

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Formal review request: Boost.Mixin
by Borislav Stanimirov 05 Mar '14

05 Mar '14

Hello, I'd like to request a formal review of Boost.Mixin. Code is here: https://github.com/iboB/boost.mixin Documentation is here: http://ibob.github.io/boost.mixin/ In short, the library allows you to dynamically compose and mutate polymorphic types from existing C++ classes. Thanks, -- Borislav

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Re: [boost] Review request for Boost.Align
by Glen Fernandes 05 Mar '14

05 Mar '14

On 2014-02-22, Ron Garcia wrote: > Hello, > > I have recieved your request and will add this library to the review schedule. > > Best, > Ron Description updated below. Code and documentation also updated. Code: http://github.com/glenfe/align/ Docs: http://glenfe.com/align/doc/ Description: This library provides function boost::align() for implementations which do not have the C++11 standard library std::align() function available. It provides allocation functions boost::aligned_alloc() and boost::aligned_free() as their functionality is not yet available in the C++ standard library. They use platform specific functions, such as posix_memalign(), aligned_malloc(), memalign(), if available, or use standard library functions in conjunction with boost::align(). It provides C++ allocators, class templates boost::aligned_allocator and boost::aligned_allocator_adaptor, which respect alignment. - The first is a replacement for the standard default allocator and uses boost::aligned_alloc() and boost::aligned_free(). - The second turns an existing allocator into one that supports alignment by using the allocator in conjunction with boost::align. It supports all C++03 and C++11 allocators, including C++11 allocators whose 'pointer' type is a smart pointer, and C++11 minimal allocators. It also provides function boost::is_aligned() to test the alignment of a pointer. -- end Glen

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DRYing BOOST_FUSION_ADAPT_STRUCT with decltype/Boost.TypeOf ?
by Damien Buhl 05 Mar '14

05 Mar '14

Hi dear Boost Fusion developers, I was asking myself if there were already plan to improve BOOST_FUSION_ADAPT_STRUCT to benefit from C++11 features like decltype ? This would be interesting to avoid the risk encountered that the types definitions can get out-of-sync. And would avoid typing type declarations twice. Currently there is BOOST_FUSION_DEFINE_STRUCT to avoid repeating the type information for each field. However this is something that makes most developer I know unhappy, as it obliges to modify the readable C++ aggregate types definition (i.e. Could be public headers) with this macro. Then there is the nice choice of BOOST_FUSION_ADAPT_STRUCT which obliges retyping the type and adds the risk that some field type information could get out-of-sync between the struct definition and the BOOST_FUSION_ADAPT_STRUCT listing. I think it would be valuable to add macros that would enable to select the fields that we want to adapt to a Random Access Sequence without requiring to repeat the type information. I would find more comfortable to write the example provided here http://www.boost.org/doc/libs/1_55_0/libs/fusion/doc/html/fusion/adapted/ad… as follow : namespace demo { struct employee { std::string name; int age; }; } // demo::employee is now a Fusion sequence BOOST_FUSION_ADAPT_STRUCT_EXT( demo::employee, (name) (age)) And a naïve implementation of BOOST_FUSION_ADAPT_STRUCT_EXT could be: #include <boost/typeof/typeof.hpp> #include <boost/fusion/include/adapt_struct.hpp> #include <boost/preprocessor/seq/for_each.hpp> #define ATTRIBUTE_DEFINITION(r, data, elem) \ (BOOST_TYPEOF(data::elem), elem) \ #define BOOST_FUSION_ADAPT_STRUCT_EXT(NAME, ATTRIBUTES) \ BOOST_FUSION_ADAPT_STRUCT(NAME, \ BOOST_PP_SEQ_FOR_EACH(ATTRIBUTE_DEFINITION, NAME, ATTRIBUTES)) #endif The same could certainly be achieved for BOOST_FUSION_ADAPT_TPL_STRUCT, while I didn't check. Thanks for the really great job done in Boost.Fusion. Cheers, -- Damien Buhl alias daminetreg

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Boost.odeint project for GSoC 2014
by Camille GILLOT 04 Mar '14

04 Mar '14

Hello, I am Camille Gillot. I am a student in French Ecole d'ingenieurs Ecole Polytechnique. I have been programming in C++ for a couple years now, and I would like to take part in boost development through GSoC this summer. I have taken a deep look on the GSoC proposals on boost trac, and I am very interested in working on the boost.odeint or the funtional/'invoke' project. May I have deeper informations on the expected work ? It is the first time I applied to a GSoC project and I worked on boost development, so I need some help about it. Regards, Camille Gillot

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Boost.Align aligned_allocator_adaptor review
by Glen Fernandes 04 Mar '14

04 Mar '14

Changing e-mail subject from 'Re: [boost] Boost.Align review request'. On Fri, Feb 28, 2014, Glen Fernandes wrote: > > On Fri, Feb 28, 2014, Mathias Gaunard wrote: > > It has functions to adapt any memory allocating scheme or C++ allocator into > > an aligned version. > > Related to the first point, I recently implemented class > template boost::aligned_allocator_adaptor to complement > boost::aligned_allocator, but I think I could improve the > implementation. I've improved the implementation of aligned_allocator_adaptor; it does two things that I believe SIMD's version does not do yet: 1. It supports C++11 minimal allocators which do not need to provide all typedefs beyond value_type 2. It supports C++11 allocators which have 'pointer' as a smart pointer (or otherwise non-raw pointer) type Code: http://github.com/glenfe/align/blob/master/include/boost/align/aligned_allo… I'd be happy to contribute this functionality to SIMD's allocator adaptor, via a patch or pull request, if you're interested. Glen

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A new Graph Generator library for GSoC 14
by Khaled Ammar 04 Mar '14

04 Mar '14

Hi every one, I would like to propose an idea for GSoC. boost has only R-Mat graph generator which is not flexible and does not preserve real graph properties. There is another graph generator called RTG which is developed by the same professor (as R-Mat) in CMU. The generator is available on Matlab only but I developed it in C++ and successfully generated graphs with tera edges. I also added a few more functionality to it and added some flexibility in my paper recently accepted in a BigData Benchmark workshop. I would like to make this code available for the graph library in boost. Would anyone endorse this project? -- Thanks, Khaled www.khaledammar.com

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[testing][teeks99] Missing headers in boost checkout
by Andrey Semashev 04 Mar '14

04 Mar '14

Hi, I'm seeing test compilation errors saying that some headers are missing. For example: http://www.boost.org/development/tests/develop/developer/output/teeks99-01a… says that boost/smart_ptr/intrusive_ptr.hpp does not exist. There are other missing headers. The tester is teeks99-01a-win2008-64on64. Is this a known problem?

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Getting started with Boost for GSoC 2014
by Yasas Charitha 04 Mar '14

04 Mar '14

Hi, I'm Yasas and quite new to Open source development. First off little bit of introduction of myself. I'm an M.Sc student in University of Moratuwa, Sri Lanka and I completed my B.Sc degree in Computer Engineering in University of Peradeniya. I'm looking forward to participating in GSoC this year with Boost. I'm very much interest about C++ development and I'm familiar with C++ development on windows. I browsed through the ideas page and I found Boost.Document and Boost.Binaries and Boost.Math Generalized Hypergeometric Functions are quite interesting project ideas. As a beginner for the GSoC I'm kind of confused and excited what to do next etc. Any help is very much appreciated. -- Regards, Yasas C. Perera, E mail - yasas.b(a)gmail.com Tel - (+94) 712 667 122 - (+94) 777 851 619 "Fellowship for Humanity"

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Re: [boost] [GSoC 2014] Http Server Proposal
by Damien Buhl 03 Mar '14

03 Mar '14

Hi Vinícius, Perhaps it's not bad to look at what Artyom Beilis does with cppcms : [http://cppcms.com/wikipp/en/page/main ](http://cppcms.com/wikipp/en/page/main)And others things like [https://github.com/metagoto/fcgixx](https://github.com/metagoto/fcgixx). And considering http, it could perhaps be valuable to look at SPDY / HTTP 2.0, because even if it will be as compatible as possible with HTTP 1.1 I believe that features like server push transactions should be taken into account in your library API. As you spoke about websockets you should have thought to something similar. You spoke about embedded, having facilities or an API which abstracts protocols like CoAP translation from/to HTTP would also be nice in my opinion. Cheers, -- Damien Buhl Em Sáb, 2014-03-01 às 11:46 +0000, Niall Douglas escreveu: > Algorithmically an async HTTP server is not challenging. Yes, I know that. The most challenging part in a HTTP server (in my opinion) is the interface, not event the implementation. That's why I'm considering WebSocket support too, but I have to investigate further about the full scope of the proposal. > Look into > Python's Twisted. Do what they do. I studied several web solutions to serve as inspiration, but I haven't checked Python's Twisted or Boost.AFIO. I'll surely check them now. Thanks for pointing me them out. It may improve my proposal already. :) > Disclaimer: I designed proposed Boost.AFIO. Then I know who I shall bug for questions. :) -- Vinícius dos Santos Oliveira https://about.me/vinipsmaker

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