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To contribute in Static map (boost::static_map<Key, T, ConstExprHash = boost::constexpr_hash<Key>, Pred = boost::constexpr_equal_to<Key>>)
by SUSHIL KHANCHI 11 Mar '17

11 Mar '17

Hello, I am an engineering student in Computer Science from SMVDU(India). I would like to contribute to your STATIC MAP project and take part in Gsoc.For getting familiar to your work, I would like to get my hands on your projects issues. Can you please guide me to your project where I can start with fixing small bugs.

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[Endian] Reading/writing from/to byte buffers
by Olaf van der Spek 10 Mar '17

10 Mar '17

Hi, One often needs to read or write values from/to a buffer while having a pointer. Could you support this? I guess one could use *reinterpret_cast<big_int64_buf_t&>(*p) but I think functions would be more convenient. On second guess one probably has to use memcpy rather then reinterpret_cast. The functions are probably implemented already but aren't exposed. https://github.com/boostorg/endian/issues/17 -- Olaf

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Fw: Build failed: smart_ptr 1.0.81-develop
by Peter Dimov 10 Mar '17

10 Mar '17

AppVeyor says that bootstrap.bat is broken: bootstrap Building Boost.Build engine ****** B A T C H R E C U R S I O N exceeds STACK limits ****** Recursion Count=509, Stack Usage=90 percent ****** B A T C H PROCESSING IS A B O R T E D ****** Command exited with code 255 -----Original Message----- From: AppVeyor Sent: Friday, March 10, 2017 17:22 To: pdimov(a)pdimov.com Subject: Build failed: smart_ptr 1.0.81-develop Build smart_ptr 1.0.81-develop failed Commit fac6fbe3cf by Glen Fernandes on 3/10/2017 3:21 PM: Update documentation in make_shared_array.html Configure your notification preferences

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[regression dashboard] missing tests
by Raffi Enficiaud 10 Mar '17

10 Mar '17

Hi all, The regression dashboard is truncated, I should see many more tests here: http://www.boost.org/development/tests/develop/developer/test.html at least as many as for the master branch: http://www.boost.org/development/tests/master/developer/test.html Any idea? Raffi

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[stacktrace] review
by Artyom Beilis 10 Mar '17

10 Mar '17

Hello, This is my review of stacktrace library: Note that I have experience with the subject as I developed a similar library for the CppCMS framework [1] > - What is your evaluation of the design? > The design is straight forward and I don't see any major issues with the API. Also I have several suggestions in handling backtrace with catch from } catch (const traced& e) { std::cerr << e.what() << '\n'; if (e.trace) { std::cerr << "Backtrace:\n" << e.trace << '\n'; } } catch (const std::exception& e) { std::cerr << e.what() << '\n'; } In my library I use much simpler approach in terms of API [2] catch(std::exception const &e) { std::cerr << e.what() << std::endl; std::cerr << booster::trace(e); } Where booster::trace is a manipulator that prints strack trace if "e" contains backtrace information - much shorted code without additional catch. I find it very easy to use. Just a suggestion. I also like with_trace templated class idea. > - What is your evaluation of the implementation? Most of my > personal concerns with this library are with the implementation and I > would hugely appreciate feedback from others with substantial > experience of using stacktracing "in anger" in non-trivial use case > scenarios. I mostly reviewed the backend. Linux: ========= 1st of all: I recommend mentioning in the documentation the option -rdynamic/-export-dynamic as otherwise dladdr would likely to fail - it is critical as many may miss one. Regarding use of add2line utility: 1. Failing to calling an external program in case of dladdr fails is bad idea. This behaviour is unexpected by the user. I understand the advantage of this as you can use debug information but should be done only per user specific request (i.e. compilation option) and not by default. 2. If you call add2line - use it for ALL addresses in backtrace at once and not for each single one! My recommendation is to provide alternative backed that uses other way to extract information not involving forking. Maybe try to analyze debug data or so - or require preparing initial map using nm tool and than loading it from file or something like that. Additionally calling the backed linux is bad - as same approach with slight modifications works on *BSD, Mac OS X and Solaris (RIP). Windows: ======== I have a question why you used COM instead of SymFromAddr functions? I understand thread safety issues but simple mutex can solve them. My concerns are regarding MinGW compilers. Have you tested it on MinGW compiler? It wouldn't work as it used MSVC debug information in general so maybe it is good idea to provide an alternative backend that extracts only address and DLL name so you can analyse the stacktrace later (using addr2line utility for example) Take a look on my code [1] regarding non-msvc windows compilers - it provides at least some useful information. > - What is your evaluation of the documentation? The documentation is ok in general and straight forward as the library itself. What I do lack is the documentation of underlying backends - how do they work. 1. use of -rdynamic/-export-dynamic should be noted in "bold face" regarding the use of the library. 2. please do not call it "POSIX backend" - as there none of the stuff you use is actually POSIX... Also you'll probably need different backends for MINGW and mention it. > - What is your evaluation of the potential usefulness of the > library? Very Very useful. > - Did you try to use the library? With what compiler? Did you have any problems? No I didn't - I mostly read the documentation and the backend code. > - How much effort did you put into your evaluation? A glance? A > quick reading? In-depth study? 3-4 hours > - Are you knowledgeable about the problem domain? Yes I am. I have written similar library for CppCMS project [1] - FINAL VOTE: Yes, Conditionally Conditions: Use of addr2line must not be enabled by default. [1] https://sourceforge.net/p/cppcms/code/HEAD/tree/framework/trunk/booster/boo… https://sourceforge.net/p/cppcms/code/HEAD/tree/framework/trunk/booster/lib… [2] https://sourceforge.net/p/cppcms/code/HEAD/tree/framework/trunk/booster/boo… Best Regards, Artyom Beilis

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boost::asio::ssl::stream handshake hang up in reconnection
by jupiter 09 Mar '17

09 Mar '17

Hi, I am running boost socket communication on Debian 8, the following client code works fine when it connected to the server the first time. s.lowest_layer().connect(*endpoint_iterator++, error); s.handshake(boost::asio::ssl::stream_base::client, error); But when the server connection lost, the client would try to run above code repeatedly until the server connection was resumed, the it passed the first line of s.lowest_layer().connect without error, but the it stuck at s.handshake(boost::asio::ssl::stream_base::client, error), the handshake hang up. What I could be missing here? Thank you.

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[preprocessing] Feedback requested on a C99 preprocessor written in pure universal Python
by Niall Douglas 09 Mar '17

09 Mar '17

Those of you who watch reddit/r/cpp will know I've been working for the past month on a pure Python implementation of a C99 conforming preprocessor. I am pleased to be able to ask for Boost feedback on a fairly high quality implementation: https://github.com/ned14/pcpp It passes the C11 standard's list of "tricky" preprocessor expansions and the mcpp test suite. It has no issue correctly handling the preprocessor metaprogramming I've thrown at it from my Boost libraries. I'm not going to claim it can handle Boost.Preprocessor or especially Boost.VMD and I've tried neither, but pull requests with source code fixes adding support for those (with accompanying unit tests) would be welcome. My main use case for writing this is to assemble my header only Boost libraries into a single "drop in and go" file. To that end it has a (still buggy) --passthru mode which passes through #define and #undef plus any #if logic which uses an undefined macro. I'm still working on pass through mode so expect showstopper bugs in that configuration, but as a straight highly standards conforming preprocessor it's ready for others to use and I welcome any feedback. There are a multitude of use cases, everything from running as a conforming preprocessor before invoking MSVC to compile right through to parsing, reflection and introspection of source code. (and yes it is also a Python library as well as a command line tool, you can find API reference docs at https://ned14.github.io/pcpp/) I look forward to any feedback and my thanks in advance for it. Niall -- ned Productions Limited Consulting http://www.nedproductions.biz/ http://ie.linkedin.com/in/nialldouglas/

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[regression runner] Preference libstdc++ vs. libc++
by Tom Kent 09 Mar '17

09 Mar '17

I have a bunch of linux regression runners that are executing clang runs of the boost regression suite (clang 3.0 - 4.0), currently these are all using the default, GCC libstdc++. Is there an interest from developers to see these runs with libc++? The basic options: 1) Convert all compatible clang builds to libc++, don't mess with libstdc++ & clang. 2) Duplicate all the clang builds to build each version with both (acknowledging that will add nearly 1/3 to the already large ~125 linux runs). 3) Change most of the runs, but keep a few token libstdc++ & clang runs, with the latest compiler version (what c++ standard c++14? c++1z?). 4) Just add a few token libc++ runs, with the latest compiler version (what c++ standard c++14? c++1z?). 5) Don't add libc++. For background (you can respond to one of the above preferences without reading on), there are two machines constantly running linux builds (in addition to the two windows ones) that I manage. One I consider the "full" suite of compilers. It runs clang 3.0 - 4.0 and gcc 4.4 - 6. For the oldest and latest releas (gcc 4.4, gcc 6, clang 3.0, clang 3.9), I run all the supported standard configs I could find (c++98, c++0x, gnu98, gnu0x -- c++03, c++11, c++14, c++1z and their gnu equivalents). I also do runs with optimization and warnings cranked, against the latest standard config e.g. "-std=c++1z -O2". For all the compiler versions that aren't on the endcaps, I just run a single config with whatever was the latest standard config for that compiler (e.g. gcc-4.8 with c++1y). This is all repeated for develop and master for a total of about 100 different configurations. The machine I consider the "fast results" machine is configured with only four runs, one each for the latest release of gcc and clang with the latest supported standard config (currently gcc-6 1z and clang-3.9 1z), for both master and develop. The goal here is that for any change checked in, the author will have feedback on its success against something modern and relevant within just a few hours. As a backup to the "fast results" machine, I also run those four regression modern runs, interspersed with the rest of the configs every dozen or so runs, bringing the total number of runs on the "full" machine up to around 125, which takes about a week for the machine to get through all the configurations. You can see more details about all of this on the github page where I keep my regression build scripts: https://github.com/teeks99/boost-build/tree/master/Regression The actual confgs run by the "full": https://github.com/teeks99/boost-build/blob/master/ Regression/teeks99-02/machine_vars.json The docker builds for all these machine configurations are kept at: https://github.com/teeks99/boost-build/tree/master/Docker And can be pulled from the docker hub with e.g. `docker pull teeks99/boost-build:clang-3.9` If you've read this far, I'd be happy for any other opinions from developers who use the test matrix. Is it worth keeping all those compilers in the middle? Do we need to test the latest compilers with all the different standard configs (03, 11, 14, 1z + gnu equivalents)? Thanks, Tom

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[safe numerics] comment
by Robert Ramey 09 Mar '17

09 Mar '17

I'm re-posting Vicente's message which apparently got lost in a server issue so we can respond to it. Robert Ramey Hi, let me start with some comments and questions. I was wondering if the requirements of Numeric don't need some kind of conversions between other numeric types. https://htmlpreview.github.io/?https://raw.githubusercontent.com/robertrame… T(u) T{u} How can you implement the conversion from safe<U> to T if you can not convert from U to T? We have implicit conversion from T to Safe and from Safe to T template<class T> constexpr /*explicit*/ safe_base(const T & t); template< class R, typename std::enable_if< !boost::numeric::is_safe<R>::value, int >::type = 0 > constexpr operator R () const; constexpr operator Stored () const; I believed that the conversion from Safe to T needed to be explicit. Having implicit conversion in both directions is suspect. Why the explicit conversion between safe<T> and safe<U> are not allowed when T and U are not the same? IMO, safe_base<T> is either not trivial default constructible and we check the validity of 0, if we don't check it, we should declare it =default. The current definition doesn't adds nothing and makes the type a non-POD and non trivial_default_constructible, which forbids its use on binary messages. constexpr explicit safe_base() { // this permits creating of invalid instances. This is inline // with C++ built-in but violates the premises of the whole library // choice are: // do nothing - violates premise of he library that all safe objects // are valid // initialize to valid value - violates C++ behavior of types. // add "initialized" flag. Preserves fixes the above, but doubles // "overhead" // still pending on this. } I'll suggest to use constexpr safe_base() = default; BTW, why the default constructor is declared explicit? As you say, could we talk of safe<short> when we can have one uninitialized? I believe this needs to appear clearly on the documentation if not already in. Has safe<const T> a sense? Integer<T> are not traits as there is a compiler error when T is not an integer :( template <class T> class Integer : public Numeric<T> { // integer types must have the corresponding numeric trait. static_assert( std::numeric_limits<T>::is_integer, "Fails to fulfill requirements for an integer type" ); }; The same for Numeric. Have you considered to define traits (usable with SFINAE)? I don't see a concept SafeNumeric. Have you considerd it? BTW, these concept classes check only for a single requirement. Shouldn't you specialize numeric_limits lowest()? Have you considered to define basic algorithms managing with the valid conversion between Numeric with the different policies, as Lawrence Crowl is proposing for the standard? http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0103r1.html http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2017/p0105r1.html I find weird the way you are including the files #include "concept/integer.hpp" #include "concept/exception_policy.hpp" #include "concept/promotion_policy.hpp" #include "safe_common.hpp" #include "exception_policies.hpp" #include "boost/concept/assert.hpp" I believed we used to inlcude boost files using <> and the absolute path. Is this a good practice? Does it allows the compiler to perform better? Best, Vicente

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Regarding Mentor
by Shaunak Dixit 08 Mar '17

08 Mar '17

Hi I have joined the Boost Developer's mailing list please help me how to find a mentor. thanks you

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[gsoc17] Project1: Static map: Can I implement the competency test in g++-7?
by Vic Luo 07 Mar '17

07 Mar '17

Hi, I'm Zheng Luo, a third-year undergraduate from Shanghai Jiaotong University who have special interest in C++ programming(especially for templates). This is my second year of applying Google Summer of Code and I'm willing to contribute to Static Map project mentioned on SoC2017 page. Previously I worked for a company as a C++ intern for months on Chromium-related projects where I gained some experience about C++ in industry. And my question is, am I allowed to implement the competency test of static_map in g++-7? I have just implemented my own version of static_map which supports the following operations: constexpr StaticMap<int, const char *, 3> m(make_pair(2, "abc"), make_pair(4, "def"), make_pair(6, "ghi")); if (!m[4]) abort(); const char *foo = m[2]; return 0; which is compiled into assembly as: main: xorl %eax, %eax ret under g++-7 with -std=c++1z -O3 So I was wondering did I pass the test? Thanks, -- --------------------------------- Vic Luo Shanghai Jiaotong University Key fingerprint 0x98809ca08bf5662a

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[gsoc17]Getting started with Project 2 in Boost.Geometry:R-tree serialization
by Ruoyun Jing 07 Mar '17

07 Mar '17

Hi Everyone: My name is Ruoyun Jing, I am an undergraduate student in Northwest University(China) of Software Engineering.Although i am a girl,i really love coding and algorithms!!! I've coded many algorithms problems with C++ and Python,and got Bronze Metal in ACMICPC Asia Shenyang Regional contest. GSoC is really a precious chance for me to get in touch with open source software. After reading all the organizations and their projects, I'm pretty interested in R-tree serialization in Boost.Geometry. Despite my lack of project experience,i will try my best to learn ,code and communicate with mentor!!! Looking forward from you.:) Thank. -- Northwest University of China Software Engineering jingry0321(a)gmail.com <jingry0321(a)163.com>

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[gsoc17] Regarding projects 1 & 3 of Boost.Geometry
by Vissarion Fisikopoulos 07 Mar '17

07 Mar '17

Hello, I proposed to mentor projects 1 & 3 of Boost.Geometry. As in Boost GSoC webpage you may choose to either provide links to existing library you developed or take a competency test. For the latter the test is the same for both projects 1 & 3, you can find it in https://svn.boost.org/trac/boost/wiki/SoC2017#Programmingcompetencytest2 Best, Vissarion ps. sorry for cross-posting, my previous reply inherited a weird subject title that most probably made it difficult to discover in most email clients > Date: Thu, 2 Mar 2017 15:41:39 +0530 > From: Shaunak Dixit <sdixit_be15(a)thapar.edu> > To: boost(a)lists.boost.org > Subject: Re: [boost] Regarding Mentor > Message-ID: > <CAAEsT1nYLwdmDnV5GNHuGAQH3DCejxx__AAtq+gak5EhKH1U3A(a)mail.gmail.com> > Content-Type: text/plain; charset=UTF-8 > > I would like to work on boost.geometry. > For given projects > > *PROJECT 1. Filtering of compare distance predicates.* > <https://svn.boost.org/trac/boost/wiki/SoC2017#PROJECT1.Filteringofcomparedi….> > > *PROJECT 3. Nearly antipodal points distance accuracy improvement.* > <https://svn.boost.org/trac/boost/wiki/SoC2017#PROJECT3.Nearlyantipodalpoint….> > > Please help me out how to start and in finding mentors for the above > projects. > > Thanks a lot > On 2 Mar 2017 15:18, "Shaunak Dixit" <sdixit_be15(a)thapar.edu> wrote: > >> Thanks a lot >> But I would like to work on geometry >> >> Thank you >> On 2 Mar 2017 14:49, "David Bellot via Boost" <boost(a)lists.boost.org> >> wrote: >> >>> you can find project with mentors and their email address on >>> https://svn.boost.org/trac/boost/wiki/SoC2017 >>> >>> I proposed to mentor for Boost.uBLAS (numerical computations). If you're >>> interested, please contact me. >>> >>> Cheers, >>> David >>> >>> On Wed, Mar 1, 2017 at 8:08 PM, Shaunak Dixit via Boost < >>> boost(a)lists.boost.org> wrote: >>> >>> > Hi I have joined the Boost Developer's mailing list >>> > please help me how to find a mentor. >>> > >>> > >>> > >>> > >>> > thanks you >>> > >>> > _______________________________________________ >>> > Unsubscribe & other changes: http://lists.boost.org/ >>> > mailman/listinfo.cgi/boost >>> > >>> >>> _______________________________________________ >>> Unsubscribe & other changes: http://lists.boost.org/mailman >>> /listinfo.cgi/boost >>>

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Re: [boost] Boost Digest, Vol 5363, Issue 1
by Vissarion Fisikopoulos 06 Mar '17

06 Mar '17

Hello, I proposed to mentor projects 1 & 3 of Boost.Geometry. As in Boost GSoC webpage you may choose to either provide links to existing library you developed or take a competency test. For the latter the test is the same for both projects 1 & 3, you can find it in https://svn.boost.org/trac/boost/wiki/SoC2017#Programmingcompetencytest2 Best, Vissarion > Date: Thu, 2 Mar 2017 15:41:39 +0530 > From: Shaunak Dixit <sdixit_be15(a)thapar.edu> > To: boost(a)lists.boost.org > Subject: Re: [boost] Regarding Mentor > Message-ID: > <CAAEsT1nYLwdmDnV5GNHuGAQH3DCejxx__AAtq+gak5EhKH1U3A(a)mail.gmail.com> > Content-Type: text/plain; charset=UTF-8 > > I would like to work on boost.geometry. > For given projects > > *PROJECT 1. Filtering of compare distance predicates.* > <https://svn.boost.org/trac/boost/wiki/SoC2017#PROJECT1.Filteringofcomparedi….> > > *PROJECT 3. Nearly antipodal points distance accuracy improvement.* > <https://svn.boost.org/trac/boost/wiki/SoC2017#PROJECT3.Nearlyantipodalpoint….> > > Please help me out how to start and in finding mentors for the above > projects. > > Thanks a lot > On 2 Mar 2017 15:18, "Shaunak Dixit" <sdixit_be15(a)thapar.edu> wrote: > >> Thanks a lot >> But I would like to work on geometry >> >> Thank you >> On 2 Mar 2017 14:49, "David Bellot via Boost" <boost(a)lists.boost.org> >> wrote: >> >>> you can find project with mentors and their email address on >>> https://svn.boost.org/trac/boost/wiki/SoC2017 >>> >>> I proposed to mentor for Boost.uBLAS (numerical computations). If you're >>> interested, please contact me. >>> >>> Cheers, >>> David >>> >>> On Wed, Mar 1, 2017 at 8:08 PM, Shaunak Dixit via Boost < >>> boost(a)lists.boost.org> wrote: >>> >>> > Hi I have joined the Boost Developer's mailing list >>> > please help me how to find a mentor. >>> > >>> > >>> > >>> > >>> > thanks you >>> > >>> > _______________________________________________ >>> > Unsubscribe & other changes: http://lists.boost.org/ >>> > mailman/listinfo.cgi/boost >>> > >>> >>> _______________________________________________ >>> Unsubscribe & other changes: http://lists.boost.org/mailman >>> /listinfo.cgi/boost >>>

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[trac] SSL certificate revoked?
by Andrey Semashev 06 Mar '17

06 Mar '17

Hi, I'm getting an error while trying to open an existing Trac ticket: https://svn.boost.org/trac/boost/ticket/11798 Secure Connection Failed An error occurred during a connection to svn.boost.org. Peer’s Certificate has been revoked. Error code: SEC_ERROR_REVOKED_CERTIFICATE Is this a known problem? Firefox 51.0.1.

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Re: [boost] [builds] broken
by Tom Kent 06 Mar '17

06 Mar '17

On Sun, Mar 5, 2017 at 11:43 AM, Rene Rivera <grafikrobot(a)gmail.com> wrote: > > On Sun, Mar 5, 2017 at 11:34 AM, Tom Kent <lists(a)teeks99.com> wrote: > >> >> On Sun, Mar 5, 2017 at 9:03 AM, Rene Rivera <grafikrobot(a)gmail.com> >> wrote: >> >>> On Sun, Mar 5, 2017 at 6:49 AM, Tom Kent via Boost < >>> boost(a)lists.boost.org> wrote: >>> >>>> On Thu, Mar 2, 2017 at 9:59 PM, Rene Rivera via Boost < >>>> boost(a)lists.boost.org >>>> > wrote: >>>> >>>> > On Thu, Mar 2, 2017 at 9:52 AM, Raffi Enficiaud via Boost < >>>> > boost(a)lists.boost.org> wrote: >>>> > >>>> > > Le 02/03/2017 à 16:25, Rene Rivera via Boost a écrit : >>>> > > >>>> > >> On Thu, Mar 2, 2017 at 9:22 AM, Raffi Enficiaud via Boost < >>>> > >> boost(a)lists.boost.org> wrote: >>>> > >> >>>> > >> Le 02/03/2017 à 16:20, Rene Rivera via Boost a écrit : >>>> > >>> >>>> > >>> On Wed, Mar 1, 2017 at 5:23 PM, Raffi Enficiaud via Boost < >>>> > >>>> boost(a)lists.boost.org> wrote: >>>> > >>>> >>>> > >>>> Hi all, >>>> > >>>> >>>> > >>>>> >>>> > >>>>> On develop, I have the following error for gcc/linux and >>>> clang/osx: >>>> > >>>>> >>>> > >>>>> 01-Mar-2017 23:58:05 libs/python/build/Jamfile:155: in >>>> > >>>>> lib_boost_numpy >>>> > >>>>> 01-Mar-2017 23:58:05 *** argument error >>>> > >>>>> 01-Mar-2017 23:58:05 * rule lib ( names + : sources * : >>>> > >>>>> requirements * >>>> > >>>>> : default-build * : usage-requirements * ) >>>> > >>>>> 01-Mar-2017 23:58:05 * called with: ( : numpy/dtype.cpp >>>> > >>>>> numpy/matrix.cpp >>>> > >>>>> >>>> > >>>>> >>>> > >>>> >>>> > >>>> How are you configuring python in your user-config.jam? >>>> > >>>> >>>> > >>>> >>>> > >>> I am not touching anything about user-config.jam: the failure >>>> happens >>>> > on >>>> > >>> a >>>> > >>> build machine (specific build user, supposedly clean). If there >>>> is a >>>> > >>> user-config.jam, then I do not know how it landed there :) >>>> > >>> >>>> > >> >>>> > >> >>>> > >> OK.. Which means that the version number for whatever python it >>>> picks up >>>> > >> is >>>> > >> undetermined and blank. I'll have to figure out why that is. >>>> > >> >>>> > > >>>> > > FYI: the Linux/OSX machines have the apt/OS python installed, and >>>> > > python3.4. >>>> > >>>> > >>>> > OK.. It turns out to have been a simple forgetting of some parens. >>>> Note >>>> > that bootstrap generates a project-config.jam file. So you do have >>>> one. You >>>> > just don't see what it is :-) But it does print out in the CI logs >>>> what it >>>> > detects as far as Python is concerned. Anyway.. It's fixed. And will >>>> be >>>> > reflected whenever stuff updates to latest develop. >>>> >>>> >>>> I think this is related, but not sure...all the regression runs I start >>>> (Linux + Windows) are currently failing with: >>>> >>>> boost-test(COMPILE) "python/select_holder" : >>>> "libs/python/test/select_holder.cpp" >>>> boost-test(RUN) "python/select_from_python_test" : >>>> "libs/python/test/select_from_python_test.cpp" "libs/python/src/conve >>>> rter/type_id.cpp" >>>> boost-test(COMPILE) "python/select_arg_to_python_test" : >>>> "libs/python/test/select_arg_to_python_test.cpp" >>>> boost-test(COMPILE_FAIL) "python/raw_pyobject_fail1" : >>>> "libs/python/test/raw_pyobject_fail1.cpp" >>>> boost-test(COMPILE_FAIL) "python/raw_pyobject_fail2" : >>>> "libs/python/test/raw_pyobject_fail2.cpp" >>>> boost-test(COMPILE_FAIL) "python/as_to_python_function" : >>>> "libs/python/test/as_to_python_function.cpp" >>>> boost-test(COMPILE_FAIL) "python/object_fail1" : >>>> "libs/python/test/object_fail1.cpp" >>>> error: at /var/boost/run/boost_bb/src/kernel/modules.jam:107 >>>> error: Unable to find file or target named >>>> error: '/boost/python//boost_numpy' >>>> error: referred to from project at >>>> error: '../libs/python/test' >>>> >>>> at the end of the results/bjam.log file. This was causing develop to >>>> fail >>>> for awhile, and now appears to have migrated to master as well. >>>> >>> >>> OK, I'm almost certain I fixed both develop and master for this now. >>> Thanks for reporting it. >>> >> >> Hmm, doesn't seem to have fixed it, still seeing the same error. >> > > Hm.. Is python configured on the runners? > Yeah, the specific runner I'm looking at at the moment has python, both 2 (2.7.6) and 3 (3.4.3, despite what the summary page says under the python versions): http://www.boost.org/development/tests/develop/developer/summary.html If you want to try that config yourself, you can get it from docker hub: teeks99/boost-build:gcc-6 I verified that it was getting the latest commit from develop: 6abf48add87c66a7b118d0bc5e24ae045ba6fbb0 Also, I noticed that there are two errors. The end of the output looks like: warning: toolset gcc initialization: can not find tool windres warning: initialized from /home/boost/user-config.jam:11 notice: using rc compiler :: <toolset>gcc-6~c++1z~warn :: /usr/bin/as notice: [python-cfg] Configuring python... notice: [python-cfg] user-specified version: "2.7" notice: [python-cfg] user-specified includes: "/usr/include/python2.7" notice: [python-cfg] user-specified libraries: "/usr/lib/x86_64-linux-gnu" notice: [python-cfg] Checking interpreter command "python2.7"... notice: [python-cfg] running command 'python2.7 -c "from sys import *; print('version=%d.%d\nplatform=%s\nprefix=%s\nexe c_prefix=%s\nexecutable=%s' % (version_info[0],version_info[1],platform,prefix,exec_prefix,executable))" 2>&1' notice: [python-cfg] ...requested configuration matched! notice: [python-cfg] Details of this Python configuration: notice: [python-cfg] interpreter command: "python2.7" notice: [python-cfg] include path: "/usr/include/python2.7" notice: [python-cfg] library path: "/usr/lib/x86_64-linux-gnu" notice: [python-cfg] Checking for NumPy... notice: [python-cfg] running command 'python2.7 -c "import sys; sys.stderr = sys.stdout; import numpy; print(numpy.get_i nclude())"' notice: [python-cfg] NumPy disabled. Reason: notice: [python-cfg] python2.7 -c "import sys; sys.stderr = sys.stdout; import numpy; print(numpy.get_include())" abor ted with notice: [python-cfg] Traceback (most recent call last): File "<string>", line 1, in <module> ImportError: No module named numpy notice: [python-cfg] Configuring python... notice: [python-cfg] user-specified version: "3.4" notice: [python-cfg] user-specified includes: "/usr/include/python3.4" notice: [python-cfg] user-specified libraries: "/usr/lib/x86_64-linux-gnu" notice: [python-cfg] Checking interpreter command "python3.4"... notice: [python-cfg] running command 'python3.4 -c "from sys import *; print('version=%d.%d\nplatform=%s\nprefix=%s\nexe c_prefix=%s\nexecutable=%s' % (version_info[0],version_info[1],platform,prefix,exec_prefix,executable))" 2>&1' notice: [python-cfg] ...requested configuration matched! notice: [python-cfg] Details of this Python configuration: notice: [python-cfg] interpreter command: "python3.4" notice: [python-cfg] include path: "/usr/include/python3.4" notice: [python-cfg] library path: "/usr/lib/x86_64-linux-gnu" notice: [python-cfg] Checking for NumPy... notice: [python-cfg] running command 'python3.4 -c "import sys; sys.stderr = sys.stdout; import numpy; print(numpy.get_i nclude())"' notice: [python-cfg] ...requested configuration matched! notice: [python-cfg] Details of this Python configuration: notice: [python-cfg] interpreter command: "python3.4" notice: [python-cfg] include path: "/usr/include/python3.4" notice: [python-cfg] library path: "/usr/lib/x86_64-linux-gnu" notice: [python-cfg] Checking for NumPy... notice: [python-cfg] running command 'python3.4 -c "import sys; sys.stderr = sys.stdout; import numpy; print(numpy.get_i nclude())"' notice: [python-cfg] NumPy disabled. Reason: notice: [python-cfg] python3.4 -c "import sys; sys.stderr = sys.stdout; import numpy; print(numpy.get_include())" abor ted with notice: [python-cfg] Traceback (most recent call last): File "<string>", line 1, in <module> ImportError: No module named 'numpy' notice: [zlib] Using pre-installed library notice: [zlib] Condition notice: [bzip2] Using pre-installed library notice: [bzip2] Condition Performing configuration checks - 32-bit : no - 64-bit : yes - arm : no - mips1 : no - power : no - sparc : no - x86 : yes - symlinks supported : yes ...found 1067 targets... # Starting tests ("/var/boost/run/boost_bb/src/engine/bin.linuxx86_64/b2" "-sBOOST_BUILD_PATH=/var/boost/run:/var/boost/ run/boost_bb/src" "-sBOOST_ROOT=/var/boost/run/boost_root" "--boost=/var/boost/run/boost_root" "--boost-root=/var/boost/ run/boost_root" "--boost-build=/var/boost/run/boost_bb/src" "--debug-configuration" -l300 toolset=gcc-6~c++1z -d2 prese rve-test-targets=off --dump-tests -j8 address-model=64 --remove-test-targets -m64 "--build-dir=/var/boost/run/results" > >"/var/boost/run/results/bjam.log" 2>&1)... # Running Boost.Build tests Traceback (most recent call last): File "run.py", line 71, in <module> runner(root) File "/var/boost/run/boost_regression_src/regression.py", line 287, in __init__ self.main() File "/var/boost/run/boost_regression_src/regression.py", line 624, in main getattr(self,action_m)() File "/var/boost/run/boost_regression_src/regression.py", line 589, in command_regression self.command_test() File "/var/boost/run/boost_regression_src/regression.py", line 368, in command_test self.command_test_boost_build() File "/var/boost/run/boost_regression_src/regression.py", line 410, in command_test_boost_build "boost/bin.v2/libs/any/test/any_test.test")); OSError: [Errno 2] No such file or directory: '/var/boost/run/results/boost/bin.v2/libs/any/test/any_test.test' While the end of the results/bjam.log is: boost-test(RUN) "ptr_container/const_element_containers" : "libs/ptr_container/test/const_element_containers.cpp" boost-test(RUN_PYD) "ptr_container/__boost_check_library__" : "status/boost_check_library.py" boost-test(RUN) "python/exec" : "libs/python/test/exec.cpp" boost-test(RUN) "python/exec-dynamic" : "libs/python/test/exec.cpp" boost-test(RUN_PYD) "python/crossmod_exception" : "libs/python/test/crossmod_exception.py" "libs/python/test/crossmod_ex ception_a.cpp" "libs/python/test/crossmod_exception_b.cpp" boost-test(RUN_PYD) "python/injected" : "libs/python/test/injected.py" "libs/python/test/injected.cpp" boost-test(RUN_PYD) "python/properties" : "libs/python/test/properties.py" "libs/python/test/properties.cpp" boost-test(RUN_PYD) "python/return_arg" : "libs/python/test/return_arg.py" "libs/python/test/return_arg.cpp" boost-test(RUN_PYD) "python/staticmethod" : "libs/python/test/staticmethod.py" "libs/python/test/staticmethod.cpp" boost-test(RUN_PYD) "python/boost_shared_ptr" : "libs/python/test/boost_shared_ptr.py" "libs/python/test/boost_shared_pt r.cpp" boost-test(RUN_PYD) "python/shared_ptr" : "libs/python/test/shared_ptr.py" "libs/python/test/shared_ptr.cpp" boost-test(RUN_PYD) "python/enable_shared_from_this" : "libs/python/test/enable_shared_from_this.py" "libs/python/test/e nable_shared_from_this.cpp" boost-test(RUN_PYD) "python/andreas_beyer" : "libs/python/test/andreas_beyer.py" "libs/python/test/andreas_beyer.cpp" boost-test(RUN_PYD) "python/wrapper_held_type" : "libs/python/test/wrapper_held_type.py" "libs/python/test/wrapper_held_ type.cpp" boost-test(RUN_PYD) "python/polymorphism2_auto_ptr" : "libs/python/test/polymorphism2_auto_ptr.py" "libs/python/test/pol ymorphism2.py" "libs/python/test/polymorphism2_auto_ptr.cpp" boost-test(RUN_PYD) "python/polymorphism" : "libs/python/test/polymorphism.py" "libs/python/test/polymorphism.cpp" boost-test(RUN_PYD) "python/polymorphism2" : "libs/python/test/polymorphism2.py" "libs/python/test/polymorphism2.cpp" boost-test(RUN_PYD) "python/auto_ptr" : "libs/python/test/auto_ptr.py" "libs/python/test/auto_ptr.cpp" boost-test(RUN_PYD) "python/minimal" : "libs/python/test/minimal.py" "libs/python/test/minimal.cpp" boost-test(RUN_PYD) "python/args" : "libs/python/test/args.py" "libs/python/test/args.cpp" boost-test(RUN_PYD) "python/raw_ctor" : "libs/python/test/raw_ctor.py" "libs/python/test/raw_ctor.cpp" boost-test(RUN_PYD) "python/enum" : "libs/python/test/test_enum.py" "libs/python/test/enum_ext.cpp" boost-test(RUN_PYD) "python/exception_translator" : "libs/python/test/exception_translator.py" "libs/python/test/excepti on_translator.cpp" boost-test(RUN_PYD) "python/pearu1" : "libs/python/test/test_cltree.py" "libs/python/test/cltree.cpp" boost-test(RUN_PYD) "python/try" : "libs/python/test/newtest.py" "libs/python/test/m1.cpp" "libs/python/test/m2.cpp" boost-test(RUN_PYD) "python/const_argument" : "libs/python/test/const_argument.py" "libs/python/test/const_argument.cpp" boost-test(RUN_PYD) "python/keywords" : "libs/python/test/keywords.cpp" "libs/python/test/keywords_test.py" boost-test(RUN_PYD) "python/builtin_converters" : "libs/python/test/test_builtin_converters.py" boost-test(RUN_PYD) "python/test_pointer_adoption" : "libs/python/test/test_pointer_adoption.py" "libs/python/test/test_ pointer_adoption.cpp" boost-test(RUN_PYD) "python/operators" : "libs/python/test/operators.py" "libs/python/test/operators.cpp" boost-test(RUN_PYD) "python/operators_wrapper" : "libs/python/test/operators_wrapper.py" "libs/python/test/operators_wra pper.cpp" boost-test(RUN_PYD) "python/callbacks" : "libs/python/test/callbacks.py" "libs/python/test/callbacks.cpp" boost-test(RUN_PYD) "python/defaults" : "libs/python/test/defaults.py" "libs/python/test/defaults.cpp" boost-test(RUN_PYD) "python/object" : "libs/python/test/object.py" "libs/python/test/object.cpp" boost-test(RUN_PYD) "python/class" : "libs/python/test/class.py" "libs/python/test/class.cpp" boost-test(RUN_PYD) "python/list" : "libs/python/test/list.py" "libs/python/test/list.cpp" boost-test(RUN_PYD) "python/long" : "libs/python/test/long.py" "libs/python/test/long.cpp" boost-test(RUN_PYD) "python/dict" : "libs/python/test/dict.py" "libs/python/test/dict.cpp" boost-test(RUN_PYD) "python/tuple" : "libs/python/test/tuple.py" "libs/python/test/tuple.cpp" boost-test(RUN_PYD) "python/str" : "libs/python/test/str.py" "libs/python/test/str.cpp" boost-test(RUN_PYD) "python/slice" : "libs/python/test/slice.py" "libs/python/test/slice.cpp" boost-test(RUN_PYD) "python/virtual_functions" : "libs/python/test/virtual_functions.py" "libs/python/test/virtual_funct ions.cpp" boost-test(RUN_PYD) "python/back_reference" : "libs/python/test/back_reference.py" "libs/python/test/back_reference.cpp" boost-test(RUN_PYD) "python/implicit" : "libs/python/test/implicit.py" "libs/python/test/implicit.cpp" boost-test(RUN_PYD) "python/data_members" : "libs/python/test/data_members.py" "libs/python/test/data_members.cpp" boost-test(RUN_PYD) "python/ben_scott1" : "libs/python/test/ben_scott1.py" "libs/python/test/ben_scott1.cpp" boost-test(RUN_PYD) "python/bienstman1" : "libs/python/test/bienstman1.py" "libs/python/test/bienstman1.cpp" boost-test(RUN_PYD) "python/bienstman2" : "libs/python/test/bienstman2.py" "libs/python/test/bienstman2.cpp" boost-test(RUN_PYD) "python/bienstman3" : "libs/python/test/bienstman3.py" "libs/python/test/bienstman3.cpp" boost-test(RUN_PYD) "python/multi_arg_constructor" : "libs/python/test/multi_arg_constructor.py" "libs/python/test/multi _arg_constructor.cpp" oost-test(RUN_PYD) "python/iterator" : "libs/python/test/iterator.py" "libs/python/test/iterator.cpp" "libs/python/test /input_iterator.cpp" boost-test(RUN_PYD) "python/stl_iterator" : "libs/python/test/stl_iterator.py" "libs/python/test/stl_iterator.cpp" boost-test(RUN_PYD) "python/extract" : "libs/python/test/extract.py" "libs/python/test/extract.cpp" boost-test(RUN_PYD) "python/crossmod_opaque" : "libs/python/test/crossmod_opaque.py" "libs/python/test/crossmod_opaque_a .cpp" "libs/python/test/crossmod_opaque_b.cpp" boost-test(RUN_PYD) "python/opaque" : "libs/python/test/opaque.py" "libs/python/test/opaque.cpp" boost-test(RUN_PYD) "python/voidptr" : "libs/python/test/voidptr.py" "libs/python/test/voidptr.cpp" boost-test(RUN_PYD) "python/pickle1" : "libs/python/test/pickle1.py" "libs/python/test/pickle1.cpp" boost-test(RUN_PYD) "python/pickle2" : "libs/python/test/pickle2.py" "libs/python/test/pickle2.cpp" boost-test(RUN_PYD) "python/pickle3" : "libs/python/test/pickle3.py" "libs/python/test/pickle3.cpp" boost-test(RUN_PYD) "python/pickle4" : "libs/python/test/pickle4.py" "libs/python/test/pickle4.cpp" boost-test(RUN_PYD) "python/nested" : "libs/python/test/nested.py" "libs/python/test/nested.cpp" boost-test(RUN_PYD) "python/docstring" : "libs/python/test/docstring.py" "libs/python/test/docstring.cpp" boost-test(RUN_PYD) "python/pytype_function" : "libs/python/test/pytype_function.py" "libs/python/test/pytype_function.c pp" boost-test(RUN_PYD) "python/vector_indexing_suite" : "libs/python/test/vector_indexing_suite.py" "libs/python/test/vecto r_indexing_suite.cpp" boost-test(RUN_PYD) "python/pointer_vector" : "libs/python/test/pointer_vector.py" "libs/python/test/pointer_vector.cpp" boost-test(RUN_PYD) "python/map_indexing_suite" : "libs/python/test/map_indexing_suite.py" boost-test(RUN) "python/import_" : "libs/python/test/import_.cpp" boost-test(RUN_PYD) "python/calling_conventions" : "libs/python/test/calling_conventions.py" "libs/python/test/calling_c onventions.cpp" boost-test(RUN_PYD) "python/calling_conventions_mf" : "libs/python/test/calling_conventions_mf.py" "libs/python/test/cal ling_conventions_mf.cpp" boost-test(COMPILE) "python/indirect_traits_test" : "libs/python/test/indirect_traits_test.cpp" boost-test(RUN) "python/destroy_test" : "libs/python/test/destroy_test.cpp" boost-test(RUN) "python/pointer_type_id_test" : "libs/python/test/pointer_type_id_test.cpp" boost-test(RUN) "python/bases" : "libs/python/test/bases.cpp" boost-test(RUN) "python/if_else" : "libs/python/test/if_else.cpp" boost-test(RUN) "python/pointee" : "libs/python/test/pointee.cpp" boost-test(RUN) "python/result" : "libs/python/test/result.cpp" boost-test(COMPILE) "python/string_literal" : "libs/python/test/string_literal.cpp" boost-test(COMPILE) "python/borrowed" : "libs/python/test/borrowed.cpp" boost-test(COMPILE) "python/object_manager" : "libs/python/test/object_manager.cpp" boost-test(COMPILE) "python/copy_ctor_mutates_rhs" : "libs/python/test/copy_ctor_mutates_rhs.cpp" boost-test(RUN) "python/upcast" : "libs/python/test/upcast.cpp" boost-test(COMPILE) "python/select_holder" : "libs/python/test/select_holder.cpp" boost-test(RUN) "python/select_from_python_test" : "libs/python/test/select_from_python_test.cpp" "libs/python/src/conve rter/type_id.cpp" boost-test(COMPILE) "python/select_arg_to_python_test" : "libs/python/test/select_arg_to_python_test.cpp" boost-test(COMPILE_FAIL) "python/raw_pyobject_fail1" : "libs/python/test/raw_pyobject_fail1.cpp" boost-test(COMPILE_FAIL) "python/raw_pyobject_fail2" : "libs/python/test/raw_pyobject_fail2.cpp" boost-test(COMPILE_FAIL) "python/as_to_python_function" : "libs/python/test/as_to_python_function.cpp" boost-test(COMPILE_FAIL) "python/object_fail1" : "libs/python/test/object_fail1.cpp" error: at /var/boost/run/boost_bb/src/kernel/modules.jam:107 error: Unable to find file or target named error: '/boost/python//boost_numpy' error: referred to from project at error: '../libs/python/test' Hope that helps, Tom

4 8

[gsoc17]Getting interests in uBLAS
by Ruoyun Jing 06 Mar '17

06 Mar '17

Hi, I am Ruoyun, I'm back again.:) In these few days, I'm getting start with boost by [link](https://github.com/boostorg/boost/wiki/Getting-Started), and got something wrong with developing/checking out a particular branch that in Ubuntu, I can not find the file called"modular-boost",but when I tried to "cd libs/geometry",it went run. When I tried to contact the devs of geometry in gitter, IRC, and email, there is only a reply for me. So I'm pretty interested in math about any aspects, because during my life of algorithm competition, I was good at algorithms in geometry, number theory, linear algebra and etc. I am really want to contact with mentor more frequently to learn more knowledge and provide more contributions to boost. I'm also interested in uBLAS and willing to learn knowledge about that !!! Looking forward from you! Thanks. Ruoyun Jing -- Northwest University of China Software Engineering jingry0321(a)gmail.com <jingry0321(a)163.com>

4 4

Insanely slow download speeds from SourceForge
by Louis Dionne 06 Mar '17

06 Mar '17

I've been getting very slow downloads of Boost from SourceForge during my Travis builds for the past week or so. It goes as low as 40K/s: Resolving downloads.sourceforge.net (downloads.sourceforge.net) 216.34.181.59 Connecting to downloads.sourceforge.net (downloads.sourceforge.net)|216.34.181.59|:443... connected. HTTP request sent, awaiting response... 302 Found Location: https://svwh.dl.sourceforge.net/project/boost/boost/1.63.0/boost_1_63_0.tar… [following] --2017-03-05 21:08:35-- https://svwh.dl.sourceforge.net/project/boost/boost/1.63.0/boost_1_63_0.tar… Resolving svwh.dl.sourceforge.net (svwh.dl.sourceforge.net) 72.5.72.15, 2606:c680:0:b:3830:34ff:fe66:6663 Connecting to svwh.dl.sourceforge.net (svwh.dl.sourceforge.net)|72.5.72.15|:443... connected. HTTP request sent, awaiting response... 200 OK Length: 81984414 (78M) [application/octet-stream] Saving to: `STDOUT' 33% [============> ] 27,795,206 40.4K/s eta 21m 34s Is anyone else having the same issue? It's causing many of my builds to time out. Louis -- View this message in context: http://boost.2283326.n4.nabble.com/Insanely-slow-download-speeds-from-Sourc… Sent from the Boost - Dev mailing list archive at Nabble.com.

3 2

[safe_numerics] The review is ongoing
by Andrzej Krzemienski 06 Mar '17

06 Mar '17

Hi Everyone, This is to remind you about the ongoing review of safe_numerics library by Robert Ramey. The review will run till March 11th. Even if you find the format of the full review too demanding, a partial review, or simply your perception of whether the library should be given a place in Boost, will be of value, and may have an impact on the final decision. safe_numerics is a set of drop-in replacements for the built-in integer types, which make the guarantee that the results of operations are either correct according to the rules of integer arithmetic or report a diagnosable error (rather than offering modulo arithmetic results, or resulting in undefined behavior, or returning incorrect results as in the case of signed vs. unsigned comparisons). The library can be found on GitHub: https://github.com/robertramey/safe_numerics/ Online docs: http://htmlpreview.github.io/?https://github.com/robertramey /safe_numerics/master/doc/html/index.html Formal Review comments can be posted publicly on the mailing list or Boost Library Incubator <http://blincubator.com>, or sent privately to the review manager, that is myself. Here are some questions you might want to answer in your review: - What is your evaluation of the design? - What is your evaluation of the implementation? - What is your evaluation of the documentation? - What is your evaluation of the potential usefulness of the library? - Did you try to use the library? With what compiler? Did you have any problems? - How much effort did you put into your evaluation? A glance? A quick reading? In-depth study? - Are you knowledgeable about the problem domain? And most importantly: Do you think the library should be accepted as a Boost library? For more information about Boost Formal Review Process, see: http://www.boost.org/community/reviews.html Your review is needed!

1 0

[metal] Feature Complete - Request for Feedback
by Bruno Dutra 05 Mar '17

05 Mar '17

Dear community, As some of you might be aware through sporadic discussions on this mailing list throughout the last couple of years, I've been working for quite a while on a modern template metaprogramming library called Metal, that I advocate as a direct replacement for the aging Boost.MPL. I believe my work is finally complete now and so I come to you to request for feedback and ask whether you think that Metal would be a valuable addition to the Boost distribution. My intention is to request a formal review in the next days / weeks, depending on your preliminary feedback. In a glimpse, Metal is a pure template metaprogramming that explores all modern features available to C++14 to overcome the limitations of Boost.MPL, most notably: * vastly improved performance [1]; * terser syntax [2]. Repository: https://github.com/brunocodutra/metal Documentation: http://brunocodutra.github.io/metal/ Boost Incubator: http://blincubator.com/bi_library/metal-2/?gform_post_id=1566 I appreciate your feedback and opinion on whether Metal is a good fit for Boost! - Previous discussions About a year ago I came to this list to discuss a proposal of merging Metal into MPL as a new API built from ground up, while at the same time serving as a backend for the previous API on modern compilers. At that time, Metal was lazy and very similar to MPL, but since then it underwent great simplification and embraced the all-eager design, so I don't think this would be a good idea anymore. Besides, it soon became clear that this would be a huge undertaking with potential to inadvertently breaking a lot of good code to little gain, so I decided instead to tackle the problem migration from MPL by providing a handy adaptor [3]. [1]: http://metaben.ch/ [2]: http://brunocodutra.github.io/metal/index.html#in_a_glimpse [3]: http://brunocodutra.github.io/metal/group__external.html#gaede6847ad3e0bb64… Regards, Bruno Dutra

13 35

[builds] broken
by Raffi Enficiaud 05 Mar '17

05 Mar '17

Hi all, On develop, I have the following error for gcc/linux and clang/osx: 01-Mar-2017 23:58:05 libs/python/build/Jamfile:155: in lib_boost_numpy 01-Mar-2017 23:58:05 *** argument error 01-Mar-2017 23:58:05 * rule lib ( names + : sources * : requirements * : default-build * : usage-requirements * ) 01-Mar-2017 23:58:05 * called with: ( : numpy/dtype.cpp numpy/matrix.cpp numpy/ndarray.cpp numpy/numpy.cpp numpy/scalars.cpp numpy/ufunc.cpp : <link>static:<define>BOOST_NUMPY_STATIC_LIB <define>BOOST_NUMPY_SOURCE <library>/python//python_for_extensions <include>/System/Library/Frameworks/Python.framework/Versions/2.7/Extras/lib/python/numpy/core/include <library>boost_python <python-debugging>on:<define>BOOST_DEBUG_PYTHON <python>2.7 -<tag>@Jamfile</Users/bambooagent/bamboo-agent-home/xml-data/build-dir/SW-BCB108-O1C/library>%Jamfile</Users/bambooagent/bamboo-agent-home/xml-data/build-dir/SW-BCB108-O1C/library>.tag <tag>@Jamfile</Users/bambooagent/bamboo-agent-home/xml-data/build-dir/SW-BCB108-O1C/library>%Jamfile</Users/bambooagent/bamboo-agent-home/xml-data/build-dir/SW-BCB108-O1C/library>.python-tag <conditional>@python.require-py : <link>shared : <link>static:<define>BOOST_NUMPY_STATIC_LIB <python-debugging>on:<define>BOOST_DEBUG_PYTHON ) 01-Mar-2017 23:58:05 * missing argument names 01-Mar-2017 23:58:05 /Users/bambooagent/bamboo-agent-home/xml-data/build-dir/SW-BCB108-O1C/library/tools/build/src/tools/builtin.jam:506:see definition of rule 'lib' being called 01-Mar-2017 23:58:05 libs/python/build/Jamfile:168: in modules.load 01-Mar-2017 23:58:05 /Users/bambooagent/bamboo-agent-home/xml-data/build-dir/SW-BCB108-O1C/library/tools/build/src/build/project.jam:325: in load-jamfile 01-Mar-2017 23:58:05 /Users/bambooagent/bamboo-agent-home/xml-data/build-dir/SW-BCB108-O1C/library/tools/build/src/build/project.jam:64: in load 01-Mar-2017 23:58:05 /Users/bambooagent/bamboo-agent-home/xml-data/build-dir/SW-BCB108-O1C/library/tools/build/src/build/project.jam:89: in load-used-projects 01-Mar-2017 23:58:05 /Users/bambooagent/bamboo-agent-home/xml-data/build-dir/SW-BCB108-O1C/library/tools/build/src/build/project.jam:75: in load 01-Mar-2017 23:58:05 /Users/bambooagent/bamboo-agent-home/xml-data/build-dir/SW-BCB108-O1C/library/tools/build/src/build/project.jam:145: in project.find 01-Mar-2017 23:58:05 /Users/bambooagent/bamboo-agent-home/xml-data/build-dir/SW-BCB108-O1C/library/tools/build/src/build-system.jam:535: in load 01-Mar-2017 23:58:05 /Users/bambooagent/bamboo-agent-home/xml-data/build-dir/SW-BCB108-O1C/library/tools/build/src/kernel/modules.jam:295: in import 01-Mar-2017 23:58:05 /Users/bambooagent/bamboo-agent-home/xml-data/build-dir/SW-BCB108-O1C/library/tools/build/src/kernel/bootstrap.jam:139: in boost-build 01-Mar-2017 23:58:05 /Users/bambooagent/bamboo-agent-home/xml-data/build-dir/SW-BCB108-O1C/library/boost-build.jam:17: in module scope 01-Mar-2017 23:58:05 Failing task since return code of [/bin/sh /Users/bambooagent/bamboo-agent-home/temp/SW-BCB108-O1C-3-ScriptBuildTask-4580193904098485274.sh] was 1 while expected 0 Best, Raffi

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[heap] tests failing
by Raffi Enficiaud 05 Mar '17

05 Mar '17

Hi, The latest commit (1c061c9) on boost.heap has failing tests. The previous commit (7aa8f90) works fine. Raffi PS: I am using boost.heap as one of the boost.test checks.

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[outcome] Tutorial third rewrite finished (I hope)
by Niall Douglas 05 Mar '17

05 Mar '17

I know the Safe Numerics review is currently happening and almost straight thereafter comes the final Stacktrace review so people are probably a bit tired of reviewing stuff, however I believe the third rewrite of the Outcome tutorial is now finished at long last. Expected<T, E> in Context: https://ned14.github.io/boost.outcome/md_doc_md_02-tutorial_a.html Expected<T, E> in Practice: https://ned14.github.io/boost.outcome/md_doc_md_03-tutorial_b.html Refining Expected<T, E>: https://ned14.github.io/boost.outcome/md_doc_md_04-tutorial_c.html Feedback is once again very welcome, indeed this tutorial looks so very different from the previous two editions because of your feedback, so thank you. In case anyone is interested, the biggest showstopper remaining before this goes into the Boost review queue is the reference docs: doxygen chokes badly on the preprocessor metaprogramming Outcome uses and generate rubbish docs. I didn't find much success with Standardese or Doxypress either, so I'm currently working with my shiny new Python C99 conforming preprocessor (https://github.com/ned14/pcpp) to partially preprocess Outcome into a form doxygen can cope with. I expect a few weeks remain on that, it may pass most of the C11 preprocessor torture test suite but the partial preprocessor pass through implementation has bugs I'm still nailing down :) Niall -- ned Productions Limited Consulting http://www.nedproductions.biz/ http://ie.linkedin.com/in/nialldouglas/

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[gsoc17]Getting started with Project 2 in Boost.Geometry : R-tree serialization
by Jing Rylynnn 05 Mar '17

05 Mar '17

Hi Everyone: My name is Ruoyun Jing, I am an undergraduate student in Northwest University(China) of Software Engineering.Although i am a girl,i really love coding and algorithms!!! I've coded many algorithms problems with C++ and Python,and got Bronze Metal in ACMICPC Asia Shenyang Regional contest. GSoC is really a precious chance for me to get in touch with open source software. After reading all the organizatuions and their projects, I'm pretty interested in R-tree serialization. Despite my lack of project experience,i will try my best to learn ,code and communicate with mentor!!! Looking forward from you.:) Thank. -- Northwest University of China Software Engineering jingry0321(a)gmail.com

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Re: [boost] [MPL][vector] Is there interest in mpl::vector using variadic templates?
by Bruno Dutra 04 Mar '17

04 Mar '17

On Mar 3, 2017 17:58, "Peter Dimov via Boost" <boost(a)lists.boost.org> wrote: Bruno Dutra wrote: OTOH the void* trick requires that a pack of M void pointers be > instantiated when the element at position M is retrieved from a list, so, > for a list of N elements, the compiler must instantiate N *distinct* packs > of void pointers, because each of these packs have a different size and is > thus a distinct type. > Not just that, but the helper function that is required to obtain the Mth element is a template instantiation as well. Saying that we shouldn't use map_from_list because it consumes memory for the instantiation is misleading; the alternatives consume memory for instantiations as well. Except for __type_pack_element, of course. Right, the trick is usually to figure out what consumes less memory, i.e. what leads to the least amount of distinct template instantiations. Alias templates help a lot with that, since they are not actually instantiated, but there is only so much one can do with alias templates alone. Bruno

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