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How compile with clang ?
by Andy 02 Mar '17

02 Mar '17

I have installed Clang at "c:\Program Files\LLVM" try: b2 clean b2 toolset=clang cxxflags="-std=c++1y -stdlib=libc++" linkflags="-stdlib=libc++" --prefix=c:\boost -j 4 stage release b2 install toolset=clang cxxflags="-std=c++1y -stdlib=libc++" linkflags="-stdlib=libc++" --prefix=c:\boost but is error: fatal error: 'corecrt.h' file not found #include <corecrt.h>

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Re: [Boost-users] Fw: error running boost book
by Clark Sims 02 Mar '17

02 Mar '17

I attached my user-config.jam I also attached the output of ../b2 --debug-configuration, as the file, debug.txt. I went to the BOOST_ROOT directory and rebuilt the headers. Initially ./b2 headers, caused errors, because I had initially run b2 as "sudo ./b2 install". I chowned back to my user, and reran. After I reran I still got the same errors. Thanks again for your help, Clark -------------------------------------------- On Mon, 2/27/17, Rene Rivera <grafikrobot(a)gmail.com> wrote: Subject: Re: Fw: error running boost book To: "Clark Sims" <clark_sims_boost(a)yahoo.com> Date: Monday, February 27, 2017, 10:18 AM On Mon, Feb 27, 2017 at 9:01 AM, Clark Sims <clark_sims_boost(a)yahoo.com> wrote: Hi Rene, I saw you were one of the developers on this project. Do you know how to solve this? Sorry I missed the email firs time around. Perhaps.. But need more info.. --- On Sat, 2/25/17, Clark Sims <clark_sims_boost(a)yahoo.com> wrote: > From: Clark Sims <clark_sims_boost(a)yahoo.com> > Subject: error running boost book > To: boost-users(a)lists.boost.org > Date: Saturday, February 25, 2017, 6:53 PM > I get the following error when I cd > to BOOST_ROOT/doc and run ../bjam > My ~/user-config.jam looks fine. I pasted it bellow the > error. Does anyone know how to fix this? It seems you forgot to paste the user-config. ALso try running with --debug-configuration and paste the header output for that. > I have spent a great deal of time trying to fix this. > It looks like the doxygen.jam in the > boost_1_63_0/tools/build/src/ tools directory does not like > the syngax of the doxygen rule in ~/user-config.jam. > > ------------------------------ ------------------------------ ------------------------------ ------------------------------ ---------- > > Building the tti docs with automatic index generation > disabled. Try building with --enable-index. > /home/csims/boost_1_63_0/libs/ dll/doc/Jamfile.v2:66: in > modules.load > *** argument error > * rule doxygen ( target : sources + : requirements * : > default-build * : usage-requirements * ) > * called with: ( autodoc_shared_library_core : : At this level it looks like it's missing aources. Looking at Boost DLL doc build file <https://github.com/boostorg/dll/blob/boost-1.63.0/doc/Jamfile.v2> it does globs for filling header files for the sources. Which would suggest that the headers aren't there. And hence you should try running "b2 headers" first. -- -- Rene Rivera -- Grafik - Don't Assume Anything -- Robot Dreams - http://robot-dreams.net -- rrivera/acm.org (msn) - grafikrobot/aim,yahoo,skype,efnet,gmail

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[thread] Feature request: set_value/exception with deferred notification (not at_thread_exit)
by TONGARI J 28 Feb '17

28 Feb '17

boost::promise (so does std::promise) only supports set_value/exception and their at_thread_exit variants, while the at_thread_exit variants support deferred notification, but the point to trigger the notification is restricted to thread-exit. This is not sufficient for, e.g. coroutine usage. This is the same problem as shown in this post: https://www.reddit.com/r/cpp/comments/4ctj2a/visual_studio_2015_update_2_co… If you want to write a "correct" adaptor for boost::future, currently you have to use extra storage when you get the return-value from the coroutine, and set the promise until final_suspend is reached. To efficiently address the problem, we need something like: * promise::set_value_deferred * promise::set_exception_deferred * promise::notify_deferred Thoughts?

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libc++-5 doesn't know auto_ptr anymore
by bebuch 28 Feb '17

28 Feb '17

I just tried to compile one of my projects with LLVM-TOT and got a lot of error massages in boost's shared_ptr implementation because libc++ removes std::auto_ptr. (I don't use boost::shared_ptr directly, but via parts of boost::dll and boost:spirit::x3.) Is there a workaround? -- View this message in context: http://boost.2283326.n4.nabble.com/libc-5-doesn-t-know-auto-ptr-anymore-tp4… Sent from the Boost - Users mailing list archive at Nabble.com.

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serialization support for gcc ?
by Alain Miniussi 28 Feb '17

28 Feb '17

Hi, In the serialization jam file (master), I see: <toolset>gcc:<cxxflags>"-fvisibility=hidden -fvisibility-inlines-hidden" with no mention of gcc version number. gcc-3.4.4, for one, does not support that option. Does that mean that the serialization library does not support the gcc-3.x serie ? Thanks Alain

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Issues building Boost 1.63.0 on Solaris 11.3 x86 using Developer Studio 12.5
by Leo Carreon 28 Feb '17

28 Feb '17

Hi, According to the Boost 1.63.0 release notes, Solaris Studio 12.5 and Solaris Studio 12.5 C++11 are supported. However, when I build in C++11 and C++14 modes I get the following errors during the configuration check stage of the build: a.. Possible issue with threading even when I am building with the option – threading=multi: error: No best alternative for libs/context/build/asm/make_x86_64_sysv_elf_gas.o next alternative: required properties: <threading>multi matched next alternative: required properties: <threading>multi matched error: No best alternative for libs/context/build/asm/jump_x86_64_sysv_elf_gas.o next alternative: required properties: <threading>multi matched next alternative: required properties: <threading>multi matched error: No best alternative for libs/context/build/asm/ontop_x86_64_sysv_elf_gas.o next alternative: required properties: <threading>multi matched next alternative: required properties: <threading>multi matched b.. Issue with ICU library detection even when I have installed the developer/icu and library/icu packages: - icu : no - icu (lib64) : no - Boost.Locale needs either iconv or ICU library to be built. - Boost.Locale needs either iconv or ICU library to be built. - Boost.Locale needs either iconv or ICU library to be built. - Boost.Locale needs either iconv or ICU library to be built. - Boost.Locale needs either iconv or ICU library to be built. - Boost.Locale needs either iconv or ICU library to be built. I also get the following errors during the build stage: a.. Issue with Boost.Fiber: "./boost/fiber/detail/spinlock_ttas.hpp", line 73: Error: Could not find a match for std::chrono::duration<long, std::ratio<1, 1000000>>::duration({initializer list}) needed in boost::fibers::detail::spinlock_ttas::lock(). "./boost/fiber/detail/spinlock_ttas.hpp", line 73: Error: Initializer for constexpr variable us0 must be a constant expression. "./boost/fiber/detail/spinlock_ttas_adaptive.hpp", line 77: Error: Could not find a match for std::chrono::duration<long, std::ratio<1, 1000000>>::duration({initializer list}) needed in boost::fibers::detail::spinlock_ttas_adaptive::lock(). "./boost/fiber/detail/spinlock_ttas_adaptive.hpp", line 77: Error: Initializer for constexpr variable us0 must be a constant expression. "./boost/fiber/context.hpp", line 341: Error: A declaration does not specify a tag or an identifier. "./boost/fiber/context.hpp", line 341: Error: Only non-static data members may be mutable. "./boost/fiber/context.hpp", line 341: Error: Use ";" to terminate declarations. "./boost/fiber/context.hpp", line 341: Error: "}" expected instead of "noexcept". "./boost/fiber/context.hpp", line 341: Error: Use ";" to terminate declarations. "./boost/fiber/context.hpp", line 341: Error: A declaration was expected instead of "noexcept". "./boost/fiber/context.hpp", line 342: Error: run_ is not defined. "./boost/fiber/context.hpp", line 342: Error: A template name was expected instead of 'forward'. "./boost/fiber/context.hpp", line 342: Error: ctx is not defined. "./boost/fiber/context.hpp", line 342: Error: Unexpected ")" -- Check for matching parenthesis. "./boost/fiber/context.hpp", line 342: Error: Operand expected instead of ",". "./boost/fiber/context.hpp", line 342: Error: The function "std::forward()" cannot be defined in the current scope. "./boost/fiber/context.hpp", line 343: Error: A declaration was expected instead of ",". "./boost/fiber/context.hpp", line 344: Error: Fn is not defined. "./boost/fiber/context.hpp", line 344: Error: A template name was expected instead of 'forward'. "./boost/fiber/context.hpp", line 344: Error: fn is not defined. "./boost/fiber/context.hpp", line 345: Error: Unexpected ")" -- Check for matching parenthesis. "./boost/fiber/context.hpp", line 345: Error: Operand expected instead of "}". "./boost/fiber/context.hpp", line 345: Error: The function "std::forward()" cannot be defined in the current scope. "./boost/fiber/context.hpp", line 355: Error: A declaration was expected instead of "{". "./boost/fiber/context.hpp", line 357: Error: No direct declarator preceding "(". b.. Issue with libs/log which happens in C++11 mode only: "libs/log/src/named_scope.cpp", line 118: Error: Overloading ambiguity between "boost::optional<boost::log::v2_mt_posix::attributes::named_scope_list>::operator=<boost::log::v2_mt_posix::attributes::named_scope_list&>(boost::log::v2_mt_posix::attributes::named_scope_list&)" and "boost::optional<boost::log::v2_mt_posix::attributes::named_scope_list>::operator=<boost::log::v2_mt_posix::attributes::named_scope_list&>(boost::log::v2_mt_posix::attributes::named_scope_list&)". 1 Error(s) detected. "CC" -std=c++11 -xO4 -mt -erroff=%none -m64 -KPIC -DBOOST_ALL_NO_LIB=1 -DBOOST_ATOMIC_DYN_LINK=1 -DBOOST_CHRONO_DYN_LINK=1 -DBOOST_DATE_TIME_DYN_LINK=1 -DBOOST_FILESYSTEM_DYN_LINK=1 -DBOOST_LOG_BUILDING_THE_LIB=1 -DBOOST_LOG_DLL -DBOOST_LOG_HAS_PTHREAD_MUTEX_ROBUST -DBOOST_LOG_USE_NATIVE_SYSLOG -DBOOST_LOG_WITHOUT_DEBUG_OUTPUT -DBOOST_LOG_WITHOUT_EVENT_LOG -DBOOST_SPIRIT_USE_PHOENIX_V3=1 -DBOOST_SYSTEM_DYN_LINK=1 -DBOOST_SYSTEM_NO_DEPRECATED -DBOOST_THREAD_BUILD_DLL=1 -DBOOST_THREAD_DONT_USE_CHRONO=1 -DBOOST_THREAD_POSIX -DBOOST_THREAD_USE_DLL=1 -DDATE_TIME_INLINE -DNDEBUG -D_XOPEN_SOURCE=500 -D__EXTENSIONS__ -D__STDC_CONSTANT_MACROS -D__typeof__=__typeof__ -I"." -I"libs/log/src" -c -o "bin.v2/libs/log/build/sun/release/address-model-64/threading-multi/named_scope.o" "libs/log/src/named_scope.cpp" ...failed sun.compile.c++ bin.v2/libs/log/build/sun/release/address-model-64/threading-multi/named_scope.o... c.. Issue with libs/python: "libs/python/src/numpy/dtype.cpp", line 61: Error: NPY_FLOAT16 is not defined. 1 Error(s) detected. "CC" -std=c++11 -xO4 -mt -erroff=%none -m64 -KPIC -DBOOST_ALL_NO_LIB=1 -DNDEBUG -I"." -I"/usr/include/python2.7" -I"/usr/lib/python2.7/vendor-packages/numpy/core/include" -c -o "bin.v2/libs/python/build/sun/release/address-model-64/threading-multi/numpy/dtype.o" "libs/python/src/numpy/dtype.cpp" ...failed sun.compile.c++ bin.v2/libs/python/build/sun/release/address-model-64/threading-multi/numpy/dtype.o... Has anyone found solutions to these issues? FYI, a set of libraries are still generated even after the above issues have occurred. I’m not sure how reliable are these libraries which I assume are unaffected by the above issues. Kinds regards, Leo

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Issue with Boost.Test using Oracle Developer Studio 12.5
by Leo Carreon 28 Feb '17

28 Feb '17

Hi, This is a continuation of the issues I’ve encountered with Boost 1.63.0 using Developer Studio 12.5. I’m assuming that even with the Boost 1.63.0 build issues that libraries unaffected by the build issues are usable. Therefore, I have attempted to build one of my small projects in both C++11 and C++14 modes. The builds of this small project failed with the following error message: "/opt/boost1.63.0/include/boost/test/unit_test_log.hpp", line 218: Error: boost::unit_test::unit_test_log_t::test_unit_skipped hides the virtual function boost::unit_test::test_observer::test_unit_skipped(const boost::unit_test::test_unit&). This error was encountered compiling a source file containing the following: #define BOOST_TEST_MODULE TestImport #include <boost/test/unit_test.hpp> Is this a Boost.Test issue or is it a Developer Studio 12.5 issue? If it is a Boost.Test issue, how do I resolve it? Kind regards, Leo

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[gsoc17] Boost will be participating in Google Summer of Code in 2017
by Niall Douglas 27 Feb '17

27 Feb '17

I am very pleased to inform the Boost community that Google accepted us into their Summer of Code programme this year. This was especially welcome after we were given "a year off" last year which could have caused substantial disruption to the multi year student projects had it not been due to the timely action of the steering committee and generous sponsorship of a stop gap Boost Summer of Code in 2016 by IMC Financial Markets. Last year Google completely rebuilt the Summer of Code website so it no longer is anything like it was before. Now we must individually invite those who vote on student projects, so *anyone willing to rank student project proposals* can you please email us with your details: 1. Your email address matching your Google Account so we can invite you onto the GSoC programme. 2. (Optional) your email address matching your Github Account so we can invite you onto the Boost GSoC github org for 2017 as a potential mentor. Our thanks to those who have already added project ideas to https://svn.boost.org/trac/boost/wiki/SoC2017, but we need MORE ideas and MORE potential project mentors. Follow the project idea template at https://svn.boost.org/trac/boost/wiki/GSoCIdeaTemplate and either add it straight to the wiki page or email it to us so we can add it for you. Our thanks to all in advance.

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Generate SSL certificate, chain file, dh and key for boost::asio::ssl::context
by jupiter 27 Feb '17

27 Feb '17

Hi, I think I can use openssl to generate those self signed files, correct? I saw some programs use 4 use_certificate_chain_file, use_certificate_file, use_private_key_file and use_tmp_dh_file in both server and client sites, but I also saw some test program only use one ca.pem in client site and 3 use_certificate_chain_file, use_private_key_file and use_tmp_dh_file in server site, which is correct or better? Any guideline? Thank you.

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Monitor lost client data connections
by jupiter 27 Feb '17

27 Feb '17

Hi, I have a server socket connected by many clients using boost::asio::ip::tcp::socket to set up server socket connection and to use boost::asio::ip::tcp::acceptor async_accept for new client connections. The client may come and go, so I need to check if the connection is still valid or not before sending message to clients. How can I check if a client connection is no longer valid? My server does not seem get any indication when a client terminate the connection. Thank you. Kind regards, - j

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