September 2016 - Boost-users - lists.preview.boost.org

[interprocess] Determine size of managed_shared_memory
by Kai Benndorf 12 Oct '19

12 Oct '19

Hi all, I want to create a managed_shared_memory in exactly the size I needed. Therefore I do something like this: size = sizeof( common_managed_shared_memory ); size += sizeof( MyClassInSharedMem ); managed_shared_memory segment(create_only, "name", size ); MyClassInSharedMem allocates itself some memory by segment->allocate(). I added this also to the size, but get a boost::interprocess::bad_alloc exception on allocating this additional memory. Are there some magic bytes I forgot to add? Many thanks in advance Kai

3 2

Weird compilation error when using boost::geometry
by 邓尧 16 Nov '17

16 Nov '17

Hi, I have implemented my own "point" as specified by the point concept http://www.boost.org/doc/libs/1_59_0/libs/geometry/doc/html/geometry/refere… When I use it along with boost::geometry::model::polygon/multi_polygon, GCC refuses to compile, tested on GCC 4.9/5.2. What's even more weird is that CLANG 3.6 would happy accept my code. BTW, the Point implementation is part of a large project, it difficult to replace it with boost::geometry::model::point. Here is my code: Point.hpp > #ifndef RAPTOR_POINT_HPP_INCLUDED_ > > #define RAPTOR_POINT_HPP_INCLUDED_ > > >> #include <boost/mpl/int.hpp> > > #include <boost/geometry/core/access.hpp> > > #include <boost/geometry/core/cs.hpp> > > #include <boost/geometry/core/coordinate_type.hpp> > > #include <boost/geometry/core/coordinate_system.hpp> > > #include <boost/geometry/core/coordinate_dimension.hpp> > > #include <boost/geometry/geometries/polygon.hpp> > > #include <boost/geometry/multi/geometries/multi_polygon.hpp> > > >> namespace raptor { > > >> template<typename T, int tDimension = 2> > > class Point { > > public: > > Point() = default; > > >> Point(T a, T b) { > > data[0] = a; > > data[1] = b; > > } > > >> Point(T a, T b, T c) { > > data[0] = a; > > data[1] = b; > > data[2] = c; > > } > > >> T& operator [] (long index) { > > return data[index]; > > } > > >> const T& operator [] (long index) const { > > return data[index]; > > } > > >> private: > > T data[tDimension]; > > }; > > >> using CubicPoint = Point<long, 3>; > > using PlanarPoint = Point<long>; > > using SphericalPoint = Point<double>; > > >> template<typename T> > > using Polygon = boost::geometry::model::polygon<T>; > > >> template<typename T> > > using PolySet = boost::geometry::model::multi_polygon<Polygon<T>>; > > >> } // namespace raptor > > >> namespace boost { namespace geometry { namespace traits { > > >> template<typename Type, std::size_t tDimension> > > struct tag<::raptor::Point<Type, tDimension>> { > > typedef point_tag type; > > }; > > >> template<typename Type, std::size_t tDimension> > > struct coordinate_type<::raptor::Point<Type, tDimension>> { > > typedef Type type; > > }; > > >> template<typename Type, std::size_t tDimension> > > struct coordinate_system<::raptor::Point<Type, tDimension>> { > > typedef boost::geometry::cs::cartesian type; > > }; > > >> template<typename Type, std::size_t tDimension> > > struct dimension<::raptor::Point<Type, tDimension>> > > : public boost::mpl::int_<tDimension> { > > // EMPTY > > }; > > >> template<typename Type, std::size_t tDimension, std::size_t tIndex> > > struct access<::raptor::Point<Type, tDimension>, tIndex> { > > static Type get(const ::raptor::Point<Type, tDimension>& p) { > > return p[tIndex]; > > } > > >> static void set(::raptor::Point<Type, tDimension>& p, > > const Type& value) { > > p[tIndex] = value; > > } > > }; > > >> }}} // namespace boost::geometry::traits > > >> #endif // RAPTOR_POINT_HPP_INCLUDED_ > > A real simple main.cpp: > #include "Point.hpp" > > >> int main() { > > raptor::Polygon<raptor::SphericalPoint> pl; > > raptor::PolySet<raptor::SphericalPoint> set; > > return sizeof(pl) + sizeof(set); > > } > > > GCC compilation error: g++ main.cpp -std=c++14 > In file included from /usr/include/boost/geometry/core/access.hpp:20:0, from Point.hpp:5, from main.cpp:1: /usr/include/boost/geometry/core/point_type.hpp: In instantiation of > 'struct boost::geometry::traits::point_type<raptor::Point<double> >': /usr/include/boost/geometry/core/point_type.hpp:66:17: required from > 'struct boost::geometry::core_dispatch::point_type<void, > raptor::Point<double> >' /usr/include/boost/geometry/core/coordinate_type.hpp:58:62: required from > 'struct boost::geometry::core_dispatch::coordinate_type<void, > raptor::Point<double> >' /usr/include/boost/geometry/core/coordinate_type.hpp:92:25: required from > 'struct boost::geometry::coordinate_type<raptor::Point<double> >' /usr/include/boost/geometry/geometries/concepts/point_concept.hpp:90:54: > required from 'class boost::geometry::concept::Point<raptor::Point<double> > >' /usr/include/boost/concept/detail/has_constraints.hpp:32:62: required by > substitution of 'template<class Model> boost::concepts::detail::yes > boost::concepts::detail::has_constraints_(Model*, > boost::concepts::detail::wrap_constraints<Model, (& Model:: constraints)>*) > [with Model = boost::geometry::concept::Point<raptor::Point<double> >]' /usr/include/boost/concept/detail/has_constraints.hpp:42:5: required from > 'const bool > boost::concepts::not_satisfied<boost::geometry::concept::Point<raptor::Point<double> > > >::value' /usr/include/boost/concept/detail/has_constraints.hpp:45:31: required > from 'struct > boost::concepts::not_satisfied<boost::geometry::concept::Point<raptor::Point<double> > > >' /usr/include/boost/mpl/if.hpp:67:11: required from 'struct > boost::mpl::if_<boost::concepts::not_satisfied<boost::geometry::concept::Point<raptor::Point<double> > > >, > boost::concepts::constraint<boost::geometry::concept::Point<raptor::Point<double> > > >, boost::concepts::requirement<boost::concepts::failed************ > boost::geometry::concept::Point<raptor::Point<double> >::************> >' /usr/include/boost/concept/detail/general.hpp:50:8: required from 'struct > boost::concepts::requirement_<void > (*)(boost::geometry::concept::Point<raptor::Point<double> >)>' /usr/include/boost/geometry/geometries/ring.hpp:60:5: required from > 'class boost::geometry::model::polygon<raptor::Point<double>, true, true, > std::vector, std::vector, std::allocator, std::allocator>' main.cpp:4:42: required from here /usr/include/boost/geometry/core/point_type.hpp:45:5: error: no matching > function for call to 'assertion_failed(mpl_::failed************ > (boost::geometry::traits::point_type<raptor::Point<double> > >::NOT_IMPLEMENTED_FOR_THIS_POINT_TYPE::************)(mpl_::assert_::types<raptor::Point<double>, > mpl_::na, mpl_::na, mpl_::na>))' BOOST_MPL_ASSERT_MSG ^ /usr/include/boost/mpl/assert.hpp:82:5: note: candidate: template<bool C> > int mpl_::assertion_failed(typename mpl_::assert<C>::type) int assertion_failed( typename assert<C>::type ); ^ /usr/include/boost/mpl/assert.hpp:82:5: note: template argument > deduction/substitution failed: /usr/include/boost/geometry/core/point_type.hpp:45:5: note: cannot > convert > 'boost::geometry::traits::point_type<Geometry>::NOT_IMPLEMENTED_FOR_THIS_POINT_TYPE48::assert_arg<raptor::Point<double> > >()' (type 'mpl_::failed************ > (boost::geometry::traits::point_type<raptor::Point<double> > >::NOT_IMPLEMENTED_FOR_THIS_POINT_TYPE::************)(mpl_::assert_::types<raptor::Point<double>, > mpl_::na, mpl_::na, mpl_::na>)') to type 'mpl_::assert<false>::type {aka > mpl_::assert<false>}' BOOST_MPL_ASSERT_MSG ^ In file included from > /usr/include/boost/geometry/core/coordinate_type.hpp:21:0, from /usr/include/boost/geometry/core/access.hpp:24, from Point.hpp:5, from main.cpp:1: /usr/include/boost/geometry/core/point_type.hpp: In instantiation of > 'struct boost::geometry::core_dispatch::point_type<void, > raptor::Point<double> >': /usr/include/boost/geometry/core/coordinate_type.hpp:58:62: required from > 'struct boost::geometry::core_dispatch::coordinate_type<void, > raptor::Point<double> >' /usr/include/boost/geometry/core/coordinate_type.hpp:92:25: required from > 'struct boost::geometry::coordinate_type<raptor::Point<double> >' /usr/include/boost/geometry/geometries/concepts/point_concept.hpp:90:54: > required from 'class boost::geometry::concept::Point<raptor::Point<double> > >' /usr/include/boost/concept/detail/has_constraints.hpp:32:62: required by > substitution of 'template<class Model> boost::concepts::detail::yes > boost::concepts::detail::has_constraints_(Model*, > boost::concepts::detail::wrap_constraints<Model, (& Model:: constraints)>*) > [with Model = boost::geometry::concept::Point<raptor::Point<double> >]' /usr/include/boost/concept/detail/has_constraints.hpp:42:5: required from > 'const bool > boost::concepts::not_satisfied<boost::geometry::concept::Point<raptor::Point<double> > > >::value' /usr/include/boost/concept/detail/has_constraints.hpp:45:31: required > from 'struct > boost::concepts::not_satisfied<boost::geometry::concept::Point<raptor::Point<double> > > >' /usr/include/boost/mpl/if.hpp:67:11: required from 'struct > boost::mpl::if_<boost::concepts::not_satisfied<boost::geometry::concept::Point<raptor::Point<double> > > >, > boost::concepts::constraint<boost::geometry::concept::Point<raptor::Point<double> > > >, boost::concepts::requirement<boost::concepts::failed************ > boost::geometry::concept::Point<raptor::Point<double> >::************> >' /usr/include/boost/concept/detail/general.hpp:50:8: required from 'struct > boost::concepts::requirement_<void > (*)(boost::geometry::concept::Point<raptor::Point<double> >)>' /usr/include/boost/geometry/geometries/ring.hpp:60:5: required from > 'class boost::geometry::model::polygon<raptor::Point<double>, true, true, > std::vector, std::vector, std::allocator, std::allocator>' main.cpp:4:42: required from here /usr/include/boost/geometry/core/point_type.hpp:66:17: error: no type named > 'type' in 'struct boost::geometry::traits::point_type<raptor::Point<double> > >' >::type type; ^ In file included from > /usr/include/boost/geometry/geometries/polygon.hpp:26:0, from Point.hpp:10, from main.cpp:1: /usr/include/boost/geometry/geometries/concepts/point_concept.hpp: In > instantiation of 'class > boost::geometry::concept::Point<raptor::Point<double> >': /usr/include/boost/concept/detail/has_constraints.hpp:32:62: required by > substitution of 'template<class Model> boost::concepts::detail::yes > boost::concepts::detail::has_constraints_(Model*, > boost::concepts::detail::wrap_constraints<Model, (& Model:: constraints)>*) > [with Model = boost::geometry::concept::Point<raptor::Point<double> >]' /usr/include/boost/concept/detail/has_constraints.hpp:42:5: required from > 'const bool > boost::concepts::not_satisfied<boost::geometry::concept::Point<raptor::Point<double> > > >::value' /usr/include/boost/concept/detail/has_constraints.hpp:45:31: required > from 'struct > boost::concepts::not_satisfied<boost::geometry::concept::Point<raptor::Point<double> > > >' /usr/include/boost/mpl/if.hpp:67:11: required from 'struct > boost::mpl::if_<boost::concepts::not_satisfied<boost::geometry::concept::Point<raptor::Point<double> > > >, > boost::concepts::constraint<boost::geometry::concept::Point<raptor::Point<double> > > >, boost::concepts::requirement<boost::concepts::failed************ > boost::geometry::concept::Point<raptor::Point<double> >::************> >' /usr/include/boost/concept/detail/general.hpp:50:8: required from 'struct > boost::concepts::requirement_<void > (*)(boost::geometry::concept::Point<raptor::Point<double> >)>' /usr/include/boost/geometry/geometries/ring.hpp:60:5: required from > 'class boost::geometry::model::polygon<raptor::Point<double>, true, true, > std::vector, std::vector, std::allocator, std::allocator>' main.cpp:4:42: required from here /usr/include/boost/geometry/geometries/concepts/point_concept.hpp:93:10: > error: 'value' is not a member of > 'boost::geometry::dimension<raptor::Point<double> >' enum { ccount = dimension<Geometry>::value }; ^ Where is the problem ? or it's a GCC bug ? Thanks

3 4

[Range, Phoenix] What am I missing...
by Robert Jones 25 Apr '17

25 Apr '17

Hi Folks Can anyone explain the output of this program... #include <iostream> #include <boost/range/algorithm/copy.hpp> #include <boost/range/counting_range.hpp> #include <boost/range/adaptor/reversed.hpp> #include <boost/range/adaptor/transformed.hpp> #include <boost/phoenix/bind/bind_function.hpp> #include <boost/phoenix/core/argument.hpp> int f( int i ) { return i * 2; } int main( ) { using boost::adaptors::reversed; using boost::adaptors::transformed; using boost::counting_range; using boost::copy; using boost::phoenix::arg_names::_1; copy( counting_range( 1, 5 ) | reversed | transformed( f ), std::ostream_iterator<int>( std::cout, " " ) ); std::cout << std::endl; copy( counting_range( 1, 5 ) | reversed | transformed( bind( f, _1 ) ), std::ostream_iterator<int>( std::cout, " " ) ); std::cout << std::endl; } Which is... 8 6 4 2 1768406272 1768406272 1768406272 1768406272 I'm using Gcc 4.6.2 & Boost 1.53 Thx All.

3 4

[Log] Random "double free or corruption" in dtor of attribute_value_set
by robin.lorke＠jenoptik.com 01 Dec '16

01 Dec '16

Hi Gentlemen, I have an application that is using Boost.Log. The application is long-term running (days, weeks, maybe months). Currently I am experiencing random crashes in my application that seem related to Boost.Log. I dont't say that is is a bug in Boost.Log, but probably I am doing something wrong. I am using version 1.55.0 but I also tried upgrading to version 1.61.0 but it is still happening there. I am currently able to reproduce the crash by forcing logs at a pace of 3 records per second. Then it takes up to 3 days for the crash to happen. The application is multi-threaded and therefore several threads may be logging at the same time. For that reason I chose "severity_logger_mt". It seems related to the destruction of objects of type attribute_value_set. This is a gdb stacktrace of the crash (gcc O0 build): (gdb) bt #0 0xb6bdbed8 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:66 #1 0xb6bdf960 in __GI_abort () at abort.c:90 #2 0xb6c139fc in __libc_message (do_abort=2, fmt=0xb6cc8c44 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:200 #3 0xb6c1e17c in malloc_printerr (action=3, str=0xb6cc8d80 "double free or corruption (!prev)", ptr=<optimized out>) at malloc.c:4949 #4 0xb6b3fcb8 in boost::log::v2_mt_posix::attribute_value_set::~attribute_value_set() () from /usr/lib/libboost_log.so.1.55.0 #5 0xb6b42688 in boost::log::v2_mt_posix::record_view::public_data::destroy (boost::log::v2_mt_posix::record_view::public_data const*) () from /usr/lib/libboost_log.so.1.55.0 #6 0xb6b44c7c in boost::log::v2_mt_posix::core::push_record_move (boost::log::v2_mt_posix::record&) () from /usr/lib/libboost_log.so.1.55.0 #7 0xb6e66814 in Logger::addLog(Logger::LEVEL, char const*, char const*, int) () from /usr/lib/libtslog.so.1 #8 0x0005ba50 in addLogRusp (iMessageId=2, sMessage=<optimized out>, sProcess=0x8dee8 "Application", eLevel=Logger::LEVEL_INFO) at ../src/RLS-V/Platform/System.inl.h:303 #9 RLS::Application::fnThreadRuspOut (thread=...) at ../src/RLS-V/Application.cpp:1447 #10 0xb6e7aa4c in Thread::startFunction(void*) () from /usr/lib/libtscommon.so.1 #11 0xb6edae38 in start_thread (arg=0xb3eff460) at pthread_create.c:313 #12 0xb6c7c318 in ?? () from /lib/libc.so.6 Backtrace stopped: previous frame inner to this frame (corrupt stack?) This is the global logger initialization (using some custom attributes): BOOST_LOG_GLOBAL_LOGGER_INIT(appLogger, boost::log::sources::severity_logger_mt< robot::log::Severity >) { core::get()->add_global_attribute("TimeStamp", attributes::local_clock()); core::get()->add_global_attribute("ProcessID", AttrProcessId()); core::get()->add_global_attribute("LineCounter", attributes::counter< unsigned int >()); core::get()->add_global_attribute("Process", attributes::current_process_name()); core::get()->add_global_attribute("Scopes", attributes::named_scope ()); core::get()->add_global_attribute("LineID", attributes::counter< unsigned int >(1)); core::get()->add_global_attribute("SimpleTimeStamp", AttrSimpleTime ()); Logger::init(); sources::severity_logger_mt< Severity > lg; return lg; } These are are my macros for logging: //these are needed to convert a macro into a string #define STRINGIFY(x) #x #define TOSTRING(x) STRINGIFY(x) /* NOTE: * __FUNCTION__ is not a macro. It's a char pointer. So we use an empty std::string as basis to concatenate the char* to it */ #define R_LOG_ID(x,y) BOOST_LOG_SEV (robot::log::appLogger::get(), y) << boost::log::add_value("LogID", x) << boost::log::add_value("FLF", ROBOT_FLF) #define R_LOG(x) R_LOG_ID(0, x) #define ROBOT_FLF std::string() + TOSTRING(__FILE__) + ":" + TOSTRING (__LINE__) + " (" + __FUNCTION__ + ")" While "R_LOG_ID" is the only one that is used currently. There are currently three sinks active: syslog, console and a custom sink sending log records via an IPC mechanism (http://www.cs.cmu.edu/~./IPC/) I am currently testing if it will still happen if I deactivate one or more of those sinks. I imagine it will be hard to tell the exact problem from the information above but maybe you guys could point me in the right direction where to dig deeper. I will happily provide any missing information and/or code snippets that could help. Possibly there are well-known common mistakes that can lead to that memory corruption in attribute_value_set? Maybe something like lazy evaluation of log expressions or multi-threading issues? Many thanks in advance for any help! Robin Lorke

2 1

[statechart] Passing parameters from event to State Local Storage
by Christophe Bourez 16 Nov '16

16 Nov '16

I need to maintain a parameter into the state local storage. This parameter is initially contained in the event that causes the transition to the target state. I give hereafter a small illustrative example. typename sc = boost::statechart; class EvTest : public sc::event<EvTest> { public: EvTest(std::size_t val) : value(val) {} std::size_t getValue() const { return this->value; } private: std::size_t value; }; class MyStateMachine; class StSource; class StTarget; class StSource : public sc::simple_state<StSource, MyStateMachine> { public: typedef sc::custom_reaction<EvTest> reactions; sc::result react(const EvTest &event) { // How to pass event.getValue() to the target state ? transit<StTarget>(); } }; class StTarget : public sc::simple_state<StTarget, MyStateMachine> { public: StTarget(std::size_t val) : val(value) {} private: std::size_t value; }; Thanks, Christophe

5 6

Issues trying to use boost::unordered_map
by Ram 11 Oct '16

11 Oct '16

Hi, I am trying to use a boost::unordered_map as a member of my class. The unordered_map is defined as, boost::unordered_map<int, int> a; as a private member in the class. I have included #include "boost/unordered_map.hpp" using namespace boost; This is the compilation error I get, x_objs.cpp c:\codeworks\common\lib\boost\boost\unordered\detail\buckets.hpp(767) : error C2059: syntax error : '(' c:\codeworks\common\lib\boost\boost\unordered\detail\buckets.hpp(766) : while compiling class template member function 'void boost::unordered::detail::functions<H,P>::construct(bool,const H &,const P &)' with [ H=boost::hash<int>, P=std::equal_to<int> ] c:\codeworks\common\lib\boost\boost\unordered\detail\table.hpp(152) : see reference to class template instantiation 'boost::unordered::detail::functions<H,P>' being compiled with [ H=boost::hash<int>, P=std::equal_to<int> ] c:\codeworks\common\lib\boost\boost\unordered\detail\unique.hpp(179) : see reference to class template instantiation 'boost::unordered::detail::table<Types>' being compiled with [ Types=boost::unordered::detail::map<std::allocator<std::pair<const int,int>>,int,int,boost::hash<int>,std::equal_to<int>> ] c:\codeworks\common\lib\boost\boost\unordered\unordered_map.hpp(74) : see reference to class template instantiation 'boost::unordered::detail::table_impl<Types>' being compiled with [ Types=boost::unordered::detail::map<std::allocator<std::pair<const int,int>>,int,int,boost::hash<int>,std::equal_to<int>> ] c:\codeworks\sample_issue.h(276) : see reference to class template instantiation 'boost::unordered::unordered_map<K,T>' being compiled with [ K=int, T=int ] li_pip.cpp ld_pip.cpp pip.cpp . . . Can someone please help me? Thanks, Ram

6 39

Need help with errors while building boost for clang on android NDK
by Robert Dailey 04 Oct '16

04 Oct '16

I'm using NDK r11 and I'm setting up project-config.jam to build boost using clang + llvm STL. I'm running into a few errors that I do not know how to solve. I will post my config file at the bottom. First problem is that boost does not know where to find tools 'ar' and 'ranlib': clang-linux.archive bin.v2\libs\container\build\clang-linux-android\release\link-static\runtime-link-static\target-os-linux\threading-multi\libboost_container-clang-mt-s-1_61.a '"ar"' is not recognized as an internal or external command, operable program or batch file. '"ranlib"' is not recognized as an internal or external command, operable program or batch file. How can I explicitly specify the NDK path to these executables? Second problem is related to some assembler stuff, I think. I get these errors while compiling boost thread: clang-linux.compile.asm bin.v2\libs\context\build\clang-linux-android\release\link-static\runtime-link-static\target-os-linux\threading-multi\asm\make_i386_ms_pe_gas.o libs\\context\\src\\asm\\make_i386_ms_pe_gas.asm:30:1: error: unknown directive .def _make_fcontext; .scl 2; .type 32; .endef ^ libs\\context\\src\\asm\\make_i386_ms_pe_gas.asm:30:22: error: unknown directive .def _make_fcontext; .scl 2; .type 32; .endef ^ libs\\context\\src\\asm\\make_i386_ms_pe_gas.asm:30:36: error: expected identifier in directive .def _make_fcontext; .scl 2; .type 32; .endef ^ libs\\context\\src\\asm\\make_i386_ms_pe_gas.asm:30:40: error: unknown directive .def _make_fcontext; .scl 2; .type 32; .endef ^ libs\\context\\src\\asm\\make_i386_ms_pe_gas.asm:136:1: error: unknown directive .def __exit; .scl 2; .type 32; .endef ^ How can I solve this? I have no idea at this point. I'm invoking the build using: b2 --without-python threading=multi link=static runtime-link=static toolset=gcc-android target-os=linux threadapi=pthread --stagedir=android stage And my project-config.jam looks like: import option ; option.set keep-going : false ; androidNDKRoot = E:/android/ndk ; androidAbiVer = 4.9 ; androidPlatform = windows-x86_64 ; using clang : android : $(androidNDKRoot)/toolchains/llvm/prebuilt/$(androidPlatform)/bin/clang++ : <compileflags>--sysroot=$(androidNDKRoot)/platforms/android-15/arch-arm <compileflags>-Os <compileflags>-fno-strict-aliasing <compileflags>-O2 <compileflags>-DNDEBUG <compileflags>-g <compileflags>-I$(androidNDKRoot)/sources/cxx-stl/llvm-libc++abi/libcxxabi/include <compileflags>-I$(androidNDKRoot)/sources/cxx-stl/llvm-libc++/libcxx/include <compileflags>-I$(androidNDKRoot)/sources/cxx-stl/llvm-libc++/libs/armeabi-v7a <compileflags>-I$(androidNDKRoot)/sources/android/support/include <compileflags>-DANDROID <compileflags>-D__ANDROID__ <compileflags>-D__arm__ <compileflags>-D_REENTRANT ;

3 8

[release] Boost 1.62.0 release available
by Rene Rivera 04 Oct '16

04 Oct '16

Release 1.62.0 of the Boost C++ Libraries is now available. These open-source libraries work well with the C++ Standard Library, and are usable across a broad spectrum of applications. The Boost license encourages both commercial and non-commercial use. This release contains two new libraries and numerous enhancements and bug fixes for existing libraries. New Libraries * Fiber: Framework for userland-threads/fibers, from Oliver Kowalke. * QVM: Boost QVM is a generic library for working with quaternions, vectors and matrices of static size with the emphasis on 2, 3 and 4-dimensional operations needed in graphics, video games and simulation applications, from Emil Dotchevski. For details, including download links, see http://www.boost.org/users/ news/version_1.62.0 You can also download directly from SourceForge: http://sourceforge.net/ projects/boost/files/boost/1.62.0/ The SHA256 checksums are as follows: b91c2cda8bee73ea613130e19e72c9589e9ef0357c4c5cc5f7523de82cce11f7 boost_1_62_0.7z 36c96b0f6155c98404091d8ceb48319a28279ca0333fba1ad8611eb90afb2ca0 boost_1_62_0.tar.bz2 440a59f8bc4023dbe6285c9998b0f7fa288468b889746b1ef00e8b36c559dce1 boost_1_62_0.tar.gz 084b2e0638bbe0975a9e43e21bc9ceae33ef11377aecab3268a57cf41e405d4e boost_1_62_0.zip Tom Kent has made pre-built windows binaries, and they are available at: https://sourceforge.net/projects/boost/files/boost-binaries/1.62.0/ To install this release on your system, see http://www.boost.org/doc/libs/ release/more/getting_started/index.html Thanks, --The Boost release team

3 5

[Boost::asio] Problem using the same io_service with many sockets
by María Victoria Rocha 03 Oct '16

03 Oct '16

Hi all, I have defined an io_service that is used by two sockets, one of them uses tcp, and the other udp. When the callback of this async_read_some is called socket.async_read_some(boost::asio::buffer(readBuffer), boost::bind(&RequestHandler::onRead, shared_from_this(), boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred)); A udp socket is created with the same io_service and an async_receive_from is called. On the callback of this read operation I try to write to the tcp socket but it captures an exception with message: "unknown exception". When this happens, the client that is listening to the tcp socket, receives "End of file" error. I resolved this problem with an io_service per socket but I would like to use the same io_service. Someone has any idea why this happens? Thanks! Victoria

2 1

[Thread] Thread library in boost 1.62 broken with g++ 4.6.3 and -std=c++0x
by Andreas Wehrmann 03 Oct '16

03 Oct '16

Hello folks, I've just wanted to try out the new release and noticed that the Thread library was not building. Assuming this code: #include <boost/thread.hpp> int main( void ) { return 0; } When compiled with -std=c++0x the compilation fails with: In file included from ./boost/boost_1_62_0/boost/exception/detail/exception_ptr.hpp:20:0, from ./boost/boost_1_62_0/boost/exception_ptr.hpp:9, from ./boost/boost_1_62_0/boost/thread/exceptional_ptr.hpp:10, from ./boost/boost_1_62_0/boost/thread/future.hpp:25, from ./boost/boost_1_62_0/boost/thread.hpp:24, from test.cpp:2: ./boost/boost_1_62_0/boost/exception/info.hpp: In instantiation of ‘boost::error_info<boost::tag_original_exception_type, const std::type_info*>’: ./boost/boost_1_62_0/boost/exception/detail/exception_ptr.hpp:95:32: instantiated from here ./boost/boost_1_62_0/boost/exception/info.hpp:66:5: error: ‘class boost::error_info<boost::tag_original_exception_type, const std::type_info*>’ has no member named ‘value_’ ./boost/boost_1_62_0/boost/container/detail/pair.hpp:85:30: warning: ‘boost::container::piecewise_construct’ defined but not used [-Wunused-variable] ./boost/boost_1_62_0/boost/system/error_code.hpp:221:36: warning: ‘boost::system::posix_category’ defined but not used [-Wunused-variable] ./boost/boost_1_62_0/boost/system/error_code.hpp:222:36: warning: ‘boost::system::errno_ecat’ defined but not used [-Wunused-variable] ./boost/boost_1_62_0/boost/system/error_code.hpp:223:36: warning: ‘boost::system::native_ecat’ defined but not used [-Wunused-variable] Compilation works if I don't use -std=c++0x. The exact compiler version is "g++ (Ubuntu/Linaro 4.6.3-1ubuntu5) 4.6.3". I'm aware that g++ 4.6.3 is not among the compilers tested for C++11, but it is for pre-Cpp11; I'm wondering if there is a reason for that which I might not be aware of (any known problems?). Best regards, Andreas

3 2

thread no defined - issue
by Alexander Carôt 29 Sep '16

29 Sep '16

Hi all, one single (windows) user in my project community (http://www.soundjack.eu) has the following problem: #ifndef BOOST_THREAD_DEFINES_THREAD_ATTRIBUTES_NATIVE_HANDLE cout << "THREAD IS NOT DEFINED" << endl; #endif This statement is true but only for him – on any other machine (Win, Linux and OSX) is works fine. Does anybody know what he can do in order to fix this issue ? Thanks in advance, best Alex

4 8

help with boost::variant, accessing recursive types
by Littlefield, Tyler 29 Sep '16

29 Sep '16

all, I have the following: boost::make_recursive_variant<int, bool, std::string, std::map<std::string, boost::recursive_variant_>>::type node; I'm populating this tree. I'm using libucl because it has a relaxed JSON syntax but I wanted to have a tree-like configuration here. The std::map is a key:value pair obviously. So my questions: How do I get std::maps from this variant? I know boost::get exists, will it just return a pointer to std::map? does setting elements in the map set elements on the variant? I also didn't see any return info for what boost::get returns if the element does not exist. Will it just return null since it does return a T*? Finally, is there a way to see the type of the variant? I don't really care if it's a bool or string, although I would like to place some implicit checks on certain values when they're retrieved. PS: If there's a way to pull this off with boost::property_tree, I would love to know how. I'm looking at using libucl as mentioned before because it provides a nginx-like not really JSON-style configuration syntax. Any tips would be appreciated. HOpefully these questions are clear and make sense. -- Take care, Ty Twitter: @sorressean Web: https://tysdomain.com Pubkey: https://tysdomain.com/files/pubkey.asc

2 1

Unable to build boost 1.61 on Solaris 11.3 w/ DevStudio 12.5
by Jon Earle 29 Sep '16

29 Sep '16

Please bear with me as I am not really familiar with Solaris. I have an 11.3 box, where I installed the developer studio 12.5. Following directions at https://blogs.oracle.com/studiocpp/entry/test, I tried to build boost 1.61. It fails horribly! I get as far as: >> create compiler configuration for Studio 12.4 C++03 (using Boost.Config configure) so all the fancy C++11 stuff in Boost is not yet enabled even if we compile with -std=c++11. ] cd libs/config; CXX=CC CXXFLAGS="-std=c++03 -m64" LDFLAGS="-std=c++03 -m64" sh ./configure << which fails. Config.log contains: configure:1959: CC -std=c++03 -m64 -std=c++03 -m64 conftest.cpp >&5 CC: Warning: Option -std=c++03 passed to ld, if ld is invoked, ignored otherwise CC: Warning: Option -std=c++03 passed to ld, if ld is invoked, ignored otherwise ld: fatal: option '-d' has illegal argument '=c++03' ld: fatal: option '-d' has illegal argument '=c++03' Removing "-std=c++03" does allow the configure process to run but not as it was intended. Building with: "./b2 --user-config=user-config.jam address-model=64 -j12 --disable-icu" gives me a lot of errors, such as those below. Below my problem description, I've pasted the build errors I noticed until I broke the build. What is the proper sequence to build boost 1.61 on Solaris? Many thanks for any help! Build output (excerpts): root@solaris:~/jearle/crypto/3rdpartySW/boost-build/boost_1_61_0# ./b2 --user-config=user-config.jam address-model=64 -j12 --disable-icu Performing configuration checks - 32-bit : yes (cached) - arm : no (cached) - mips1 : no (cached) - power : no (cached) - sparc : no (cached) - x86 : yes (cached) Building the Boost C++ Libraries. - symlinks supported : yes (cached) 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 - C++11 mutex : no (cached) - lockfree boost::atomic_flag : no (cached) warning: Graph library does not contain MPI-based parallel components. note: to enable them, add "using mpi ;" to your user-config.jam - zlib : no (cached) - icu : no (cached) - icu (lib64) : no (cached) - 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. - compiler-supports-visibility : no (cached) - compiler-supports-ssse3 : yes (cached) - has_icu builds : no (cached) - compiler-supports-avx2 : no (cached) - gcc visibility : no (cached) - long double support : yes (cached) warning: skipping optional Message Passing Interface (MPI) library. note: to enable MPI support, add "using mpi ;" to user-config.jam. note: to suppress this message, pass "--without-mpi" to bjam. note: otherwise, you can safely ignore this message. 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 - zlib : no (cached) - 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. ... ...patience... ...found 9011 targets... ...updating 845 targets... sun.compile.c++ bin.v2/libs/wave/build/sun/release/address-model-64/link-static/threading-multi/instantiate_re2c_lexer.o CC: Warning: Option -std=c++11 passed to ld, if ld is invoked, ignored otherwise "./boost/detail/iterator.hpp", line 19: Error: iterator_traits is not a member of std. "./boost/wave/util/flex_string.hpp", line 128: Error: Templates can only declare classes or functions. "./boost/wave/util/flex_string.hpp", line 131: Warning: Implicit int is not supported in C++. "./boost/wave/util/flex_string.hpp", line 131: Error: "," expected instead of "!=". "./boost/wave/util/flex_string.hpp", line 131: Error: A declaration was expected instead of "--". "./boost/wave/util/flex_string.hpp", line 131: Warning: Implicit int is not supported in C++. "./boost/wave/util/flex_string.hpp", line 131: Error: Multiple declaration for n. "./boost/wave/util/flex_string.hpp", line 131: Error: Use ";" to terminate declarations. "./boost/wave/util/flex_string.hpp", line 131: Error: A declaration was expected instead of "++". "./boost/wave/util/flex_string.hpp", line 131: Warning: Implicit int is not supported in C++. "./boost/wave/util/flex_string.hpp", line 131: Error: Use ";" to terminate declarations. "./boost/wave/util/flex_string.hpp", line 131: Error: A declaration was expected instead of "++". "./boost/wave/util/flex_string.hpp", line 131: Warning: Implicit int is not supported in C++. "./boost/wave/util/flex_string.hpp", line 131: Error: "," expected instead of ")". "./boost/wave/util/flex_string.hpp", line 135: Error: A declaration was expected instead of "return". "./boost/wave/util/flex_string.hpp", line 135: Warning: Implicit int is not supported in C++. "./boost/wave/util/flex_string.hpp", line 2538: Error: A declaration was expected instead of "}". "./boost/wave/util/flex_string.hpp", line 2539: Error: A declaration was expected instead of "}". "./boost/wave/token_ids.hpp", line 359: Error: flex_string is not a member of boost::wave::util. "./boost/wave/token_ids.hpp", line 359: Error: A declaration does not specify a tag or an identifier. "./boost/wave/token_ids.hpp", line 359: Error: Use ";" to terminate declarations. "./boost/wave/token_ids.hpp", line 359: Error: A declaration was expected instead of "<". "./boost/wave/token_ids.hpp", line 359: Error: A declaration does not specify a tag or an identifier. "./boost/wave/token_ids.hpp", line 359: Error: Use ";" to terminate declarations. "./boost/wave/token_ids.hpp", line 359: Error: A declaration was expected instead of ",". "./boost/wave/token_ids.hpp", line 359: Warning: declarator required in declaration. "./boost/wave/token_ids.hpp", line 359: Error: Use ";" to terminate declarations. "./boost/wave/token_ids.hpp", line 359: Error: A declaration was expected instead of ",". "./boost/wave/token_ids.hpp", line 359: Warning: declarator required in declaration. "./boost/wave/token_ids.hpp", line 359: Error: Use ";" to terminate declarations. "./boost/wave/token_ids.hpp", line 359: Error: A declaration was expected instead of ",". "./boost/wave/token_ids.hpp", line 359: Error: CowString is not a member of boost::wave::util. Compilation aborted, too many Error messages. ... "CC" -xO4 -mt -erroff=%none -std=c++11 -m64 -DBOOST_ALL_NO_LIB=1 -DBOOST_THREAD_USE_LIB=1 -DNDEBUG -I"." -c -o "bin.v2/libs/wave/build/sun/release/address-model-64/link-static/threading-multi/instantiate_re2c_lexer_str.o" "libs/wave/src/instantiate_re2c_lexer_str.cpp" ...failed sun.compile.c++ bin.v2/libs/wave/build/sun/release/address-model-64/link-static/threading-multi/instantiate_re2c_lexer_str.o... sun.compile.c++ bin.v2/libs/wave/build/sun/release/address-model-64/link-static/threading-multi/wave_config_constant.o CC: Warning: Option -std=c++11 passed to ld, if ld is invoked, ignored otherwise "./boost/detail/iterator.hpp", line 19: Error: iterator_traits is not a member of std. "./boost/wave/util/flex_string.hpp", line 128: Error: Templates can only declare classes or functions. "./boost/wave/util/flex_string.hpp", line 131: Warning: Implicit int is not supported in C++. "./boost/wave/util/flex_string.hpp", line 131: Error: "," expected instead of "!=". "./boost/wave/util/flex_string.hpp", line 131: Error: A declaration was expected instead of "--". "./boost/wave/util/flex_string.hpp", line 131: Warning: Implicit int is not supported in C++. "./boost/wave/util/flex_string.hpp", line 131: Error: Multiple declaration for n. "./boost/wave/util/flex_string.hpp", line 131: Error: Use ";" to terminate declarations. "./boost/wave/util/flex_string.hpp", line 131: Error: A declaration was expected instead of "++". "./boost/wave/util/flex_string.hpp", line 131: Warning: Implicit int is not supported in C++. "./boost/wave/util/flex_string.hpp", line 131: Error: Use ";" to terminate declarations. "./boost/wave/util/flex_string.hpp", line 131: Error: A declaration was expected instead of "++". "./boost/wave/util/flex_string.hpp", line 131: Warning: Implicit int is not supported in C++. "./boost/wave/util/flex_string.hpp", line 131: Error: "," expected instead of ")". "./boost/wave/util/flex_string.hpp", line 135: Error: A declaration was expected instead of "return". "./boost/wave/util/flex_string.hpp", line 135: Warning: Implicit int is not supported in C++. "./boost/wave/util/flex_string.hpp", line 2538: Error: A declaration was expected instead of "}". "./boost/wave/util/flex_string.hpp", line 2539: Error: A declaration was expected instead of "}". 13 Error(s) and 5 Warning(s) detected. ... "CC" -xO4 -mt -erroff=%none -std=c++11 -m64 -DBOOST_ALL_NO_LIB=1 -DBOOST_FILESYSTEM_STATIC_LINK=1 -DBOOST_SYSTEM_STATIC_LINK=1 -DNDEBUG -I"." -c -o "bin.v2/libs/filesystem/build/sun/release/address-model-64/link-static/threading-multi/portability.o" "libs/filesystem/src/portability.cpp" ...failed sun.compile.c++ bin.v2/libs/filesystem/build/sun/release/address-model-64/link-static/threading-multi/portability.o... sun.compile.c++ bin.v2/libs/filesystem/build/sun/release/address-model-64/link-static/threading-multi/utf8_codecvt_facet.o CC: Warning: Option -std=c++11 passed to ld, if ld is invoked, ignored otherwise sun.compile.c++ bin.v2/libs/filesystem/build/sun/release/address-model-64/link-static/threading-multi/path.o CC: Warning: Option -std=c++11 passed to ld, if ld is invoked, ignored otherwise "./boost/detail/iterator.hpp", line 19: Error: iterator_traits is not a member of std. 1 Error(s) detected. ... "CC" -xO4 -mt -erroff=%none -std=c++11 -m64 -DBOOST_ALL_NO_LIB=1 -DBOOST_IOSTREAMS_USE_DEPRECATED -DNDEBUG -I"." -c -o "bin.v2/libs/iostreams/build/sun/release/address-model-64/link-static/threading-multi/bzip2.o" "libs/iostreams/src/bzip2.cpp" ...failed sun.compile.c++ bin.v2/libs/iostreams/build/sun/release/address-model-64/link-static/threading-multi/bzip2.o... ...skipped <pbin.v2/libs/iostreams/build/sun/release/address-model-64/link-static/threading-multi>libboost_iostreams.a for lack of <pbin.v2/libs/iostreams/build/sun/release/address-model-64/link-static/threading-multi>mapped_file.o... ...skipped <pstage/lib>libboost_iostreams.a for lack of <pbin.v2/libs/iostreams/build/sun/release/address-model-64/link-static/threading-multi>libboost_iostreams.a... sun.compile.c++ bin.v2/libs/log/build/sun/release/address-model-64/build-no/link-static/log-api-unix/threading-multi/named_scope.o CC: Warning: Option -std=c++11 passed to ld, if ld is invoked, ignored otherwise "./boost/log/utility/string_literal.hpp", line 76: Error: Too few arguments for template std::reverse_iterator<std::_Iterator, std::_Category, std::_Tt, std::_Reference, std::_Pointer, std::_Distance>. "./boost/log/attributes/named_scope.hpp", line 82: Where: While specializing "boost::log::v2s_mt_posix::basic_string_literal<char, std::char_traits<char>>". "./boost/log/attributes/named_scope.hpp", line 82: Where: Specialized in non-template code. "./boost/log/attributes/named_scope.hpp", line 219: Error: Too few arguments for template std::reverse_iterator<std::_Iterator, std::_Category, std::_Tt, std::_Reference, std::_Pointer, std::_Distance>. "./boost/log/attributes/named_scope.hpp", line 220: Error: Too few arguments for template std::reverse_iterator<std::_Iterator, std::_Category, std::_Tt, std::_Reference, std::_Pointer, std::_Distance>. "./boost/log/attributes/named_scope.hpp", line 295: Error: Cannot cast from boost::log::v2s_mt_posix::attributes::named_scope_list::iter<1> to int. "./boost/log/attributes/named_scope.hpp", line 299: Error: Cannot cast from boost::log::v2s_mt_posix::attributes::named_scope_list::iter<1> to int. "./boost/log/attributes/named_scope.hpp", line 318: Error: The operation "* int" is illegal. "libs/log/src/named_scope.cpp", line 213: Error: Cannot use void* to initialize boost::log::v2s_mt_posix::attributes::named_scope_entry*. "libs/log/src/named_scope.cpp", line 217: Error: construct is not a member of std::allocator<boost::log::v2s_mt_posix::attributes::named_scope_entry>. "libs/log/src/named_scope.cpp", line 235: Error: destroy is not a member of std::allocator<boost::log::v2s_mt_posix::attributes::named_scope_entry>. 9 Error(s) detected. ... "CC" -xO4 -mt -erroff=%none -std=c++11 -m64 -DBOOST_ALL_NO_LIB=1 -DBOOST_DATE_TIME_STATIC_LINK -DDATE_TIME_INLINE -DNDEBUG -I"." -c -o "bin.v2/libs/date_time/build/sun/release/address-model-64/link-static/threading-multi/gregorian/greg_month.o" "libs/date_time/src/gregorian/greg_month.cpp" ...failed sun.compile.c++ bin.v2/libs/date_time/build/sun/release/address-model-64/link-static/threading-multi/gregorian/greg_month.o... ...skipped <pbin.v2/libs/date_time/build/sun/release/address-model-64/link-static/threading-multi>libboost_date_time.a for lack of <pbin.v2/libs/date_time/build/sun/release/address-model-64/link-static/threading-multi>gregorian/greg_month.o... ...skipped <pstage/lib>libboost_date_time.a for lack of <pbin.v2/libs/date_time/build/sun/release/address-model-64/link-static/threading-multi>libboost_date_time.a... sun.compile.c++ bin.v2/libs/log/build/sun/release/address-model-64/build-no/link-static/log-api-unix/threading-multi/thread_id.o CC: Warning: Option -std=c++11 passed to ld, if ld is invoked, ignored otherwise "libs/log/src/thread_id.cpp", line 213: Warning (Anachronism): Formal argument 2 of type extern "C" void(*)(void*) in call to pthread_key_create(unsigned*, extern "C" void(*)(void*)) is being passed void(*)(void*). 1 Warning(s) detected. sun.compile.c++ bin.v2/libs/log/build/sun/release/address-model-64/build-no/link-static/log-api-unix/threading-multi/severity_level.o CC: Warning: Option -std=c++11 passed to ld, if ld is invoked, ignored otherwise "./boost/move/unique_ptr.hpp", line 434: Error: typenamebmupd is not defined. "libs/log/src/severity_level.cpp", line 66: Where: While instantiating "boost::movelib::unique_ptr<unsigned long, boost::movelib::default_delete<unsigned long>>::unique_ptr<unsigned long*>(unsigned long*, boost::move_upmu::nat*)". "libs/log/src/severity_level.cpp", line 66: Where: Instantiated from non-template code. "./boost/move/unique_ptr.hpp", line 434: Error: get_element_type is not defined. "libs/log/src/severity_level.cpp", line 66: Where: While instantiating "boost::movelib::unique_ptr<unsigned long, boost::movelib::default_delete<unsigned long>>::unique_ptr<unsigned long*>(unsigned long*, boost::move_upmu::nat*)". "libs/log/src/severity_level.cpp", line 66: Where: Instantiated from non-template code. "./boost/move/unique_ptr.hpp", line 434: Error: "," expected instead of "<". "libs/log/src/severity_level.cpp", line 66: Where: While instantiating "boost::movelib::unique_ptr<unsigned long, boost::movelib::default_delete<unsigned long>>::unique_ptr<unsigned long*>(unsigned long*, boost::move_upmu::nat*)". "libs/log/src/severity_level.cpp", line 66: Where: Instantiated from non-template code. "./boost/move/unique_ptr.hpp", line 434: Error: Illegal value for template parameter. "libs/log/src/severity_level.cpp", line 66: Where: While instantiating "boost::movelib::unique_ptr<unsigned long, boost::movelib::default_delete<unsigned long>>::unique_ptr<unsigned long*>(unsigned long*, boost::move_upmu::nat*)". "libs/log/src/severity_level.cpp", line 66: Where: Instantiated from non-template code. "./boost/move/unique_ptr.hpp", line 434: Error: Template template-parameter boost::move_upmu::U requires a class template argument. "libs/log/src/severity_level.cpp", line 66: Where: While instantiating "boost::movelib::unique_ptr<unsigned long, boost::movelib::default_delete<unsigned long>>::unique_ptr<unsigned long*>(unsigned long*, boost::move_upmu::nat*)". "libs/log/src/severity_level.cpp", line 66: Where: Instantiated from non-template code. "./boost/move/unique_ptr.hpp", line 434: Error: type is not a member of boost::move_upmu::missing_virtual_destructor<boost::movelib::default_delete<unsigned long>, int>. "libs/log/src/severity_level.cpp", line 66: Where: While instantiating "boost::movelib::unique_ptr<unsigned long, boost::movelib::default_delete<unsigned long>>::unique_ptr<unsigned long*>(unsigned long*, boost::move_upmu::nat*)". "libs/log/src/severity_level.cpp", line 66: Where: Instantiated from non-template code. "./boost/move/unique_ptr.hpp", line 434: Error: value is not defined. "libs/log/src/severity_level.cpp", line 66: Where: While instantiating "boost::movelib::unique_ptr<unsigned long, boost::movelib::default_delete<unsigned long>>::unique_ptr<unsigned long*>(unsigned long*, boost::move_upmu::nat*)". "libs/log/src/severity_level.cpp", line 66: Where: Instantiated from non-template code. 7 Error(s) detected. ... ...failed sun.compile.c++ bin.v2/libs/log/build/sun/release/address-model-64/build-no/link-static/log-api-unix/threading-multi/syslog_backend.o... sun.compile.c++ bin.v2/libs/log/build/sun/release/address-model-64/link-static/log-api-unix/threading-multi/dump_ssse3.o CC: Warning: Option -std=c++11 passed to ld, if ld is invoked, ignored otherwise "libs/log/src/dump_ssse3.cpp", line 179: ube: error: _mm_lddqu_si128 intrinsic requires at least -xarch=sse3. CC: ube failed for libs/log/src/dump_ssse3.cpp "CC" -xO4 -mt -erroff=%none -std=c++11 -m64 -DBOOST_ALL_NO_LIB=1 -DBOOST_ATOMIC_STATIC_LINK=1 -DBOOST_CHRONO_STATIC_LINK=1 -DBOOST_FILESYSTEM_STATIC_LINK=1 -DBOOST_LOG_BUILDING_THE_LIB=1 -DBOOST_LOG_USE_NATIVE_SYSLOG -DBOOST_LOG_WITHOUT_EVENT_LOG -DBOOST_SPIRIT_USE_PHOENIX_V3=1 -DBOOST_SYSTEM_NO_DEPRECATED -DBOOST_SYSTEM_STATIC_LINK=1 -DBOOST_THREAD_BUILD_LIB=1 -DBOOST_THREAD_DONT_USE_CHRONO=1 -DBOOST_THREAD_POSIX -DBOOST_THREAD_USE_LIB=1 -DDATE_TIME_INLINE -DNDEBUG -D_XOPEN_SOURCE=500 -D__EXTENSIONS__ -D__STDC_CONSTANT_MACROS -D__typeof__=__typeof__ -I"." -c -o "bin.v2/libs/log/build/sun/release/address-model-64/link-static/log-api-unix/threading-multi/dump_ssse3.o" "libs/log/src/dump_ssse3.cpp"

2 1

Insertion/Use of boost::multi_index - new thread
by Ram 29 Sep '16

29 Sep '16

Hi, When I try to create a object of this, typedef boost::multi_index_container< ClassX*, //mapped value boost::multi_index::indexed_by< //list of indices boost::multi_index::hashed_unique< boost::multi_index::const_mem_fun<ParentClassOfX, Key1, &ParentClassOfX::getKey1> //hashed index by unique Key1 >, boost::multi_index::hashed_unique< boost::multi_index::const_mem_fun<ParentClassOfX, Vs64, &ParentClassOfX::getKey2> //hashed index by unique Key1 > > >ClassXMultiKeyIndexed; like, ClassXMultiKeyIndexed sample; and insert a pointer like this, ClassX *a; ClassXMultiKeyIndexed sample; //a is not NULL and is filled up before the below insert sample.insert(a); This is the compilation error, it compiles fine if "sample.insert(a)" is commented out. Compilation error : Compiling... stm_container_manager_abc.cpp c:\code\common\lib\boost\boost\detail\allocator_utilities.hpp(153) : error C2061: syntax error : identifier 'p' c:\code\common\lib\boost\boost\multi_index\detail\index_base.hpp(105) : see reference to function template instantiation 'void boost::detail::allocator::construct<Container*>(void *,const Type &)' being compiled with [ Type=Container * ] c:\code\common\lib\boost\boost\multi_index\detail\index_base.hpp(102) : while compiling class template member function 'boost::multi_index::detail::hashed_index_node<Super,Category> *boost::multi_index::detail::index_base<Value,IndexSpecifierList,Allocator>::insert_(Container *const &,boost::multi_index::detail::hashed_index_node<Super,Category> *&,boost::multi_index::detail::lvalue_tag)' with [ Super=boost::multi_index::detail::hashed_index_node<boost::multi_index::detail::index_node_base<Container *,std::allocator<Container *>>,boost::multi_index::detail::hashed_unique_tag>, Category=boost::multi_index::detail::hashed_unique_tag, Value=Container *, IndexSpecifierList=boost::multi_index::indexed_by<boost::multi_index::hashed_unique<boost::multi_index::const_mem_fun<DBObject,Key1,DBObject::getKey1>>,boost::multi_index::hashed_unique<boost::multi_index::const_mem_fun<DBObject,Vs64,DBObject::getKey2>>>, Allocator=std::allocator<Container *> ] c:\code\common\lib\boost\boost\multi_index\hashed_index.hpp(93) : see reference to class template instantiation 'boost::multi_index::detail::index_base<Value,IndexSpecifierList,Allocator>' being compiled with [ Value=Container *, IndexSpecifierList=boost::multi_index::indexed_by<boost::multi_index::hashed_unique<boost::multi_index::const_mem_fun<DBObject,Key1,DBObject::getKey1>>,boost::multi_index::hashed_unique<boost::multi_index::const_mem_fun<DBObject,Vs64,DBObject::getKey2>>>, Allocator=std::allocator<Container *> ] c:\code\common\lib\boost\boost\multi_index\hashed_index.hpp(93) : see reference to class template instantiation 'boost::multi_index::detail::hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>' being compiled with [ KeyFromValue=boost::multi_index::const_mem_fun<DBObject,Vs64,DBObject::getKey2>, Hash=boost::hash<boost::long_long_type>, Pred=std::equal_to<__int64>, SuperMeta=boost::multi_index::detail::nth_layer<2,Container *,boost::multi_index::indexed_by<boost::multi_index::hashed_unique<boost::multi_index::const_mem_fun<DBObject,Key1,DBObject::getKey1>>,boost::multi_index::hashed_unique<boost::multi_index::const_mem_fun<DBObject,Vs64,DBObject::getKey2>>>,std::allocator<Container *>>, TagList=boost::mpl::vector0<boost::mpl::na>, Category=boost::multi_index::detail::hashed_unique_tag ] c:\code\common\lib\boost\boost\multi_index_container.hpp(100) : see reference to class template instantiation 'boost::multi_index::detail::hashed_index<KeyFromValue,Hash,Pred,SuperMeta,TagList,Category>' being compiled with [ KeyFromValue=boost::multi_index::const_mem_fun<DBObject,Key1,DBObject::getKey1>, Hash=boost::hash<boost::long_long_type>, Pred=std::equal_to<__int64>, SuperMeta=boost::multi_index::detail::nth_layer<1,Container *,boost::multi_index::indexed_by<boost::multi_index::hashed_unique<boost::multi_index::const_mem_fun<DBObject,Key1,DBObject::getKey1>>,boost::multi_index::hashed_unique<boost::multi_index::const_mem_fun<DBObject,Vs64,DBObject::getKey2>>>,std::allocator<Container *>>, TagList=boost::mpl::vector0<boost::mpl::na>, Category=boost::multi_index::detail::hashed_unique_tag ] c:\code\common\src\biz\model\stm-stow_model\stm_container_manager_abc.h(323) : see reference to class template instantiation 'boost::multi_index::multi_index_container<Value,IndexSpecifierList>' being compiled with [ Value=Container *, IndexSpecifierList=boost::multi_index::indexed_by<boost::multi_index::hashed_unique<boost::multi_index::const_mem_fun<DBObject,Key1,DBObject::getKey1>>,boost::multi_index::hashed_unique<boost::multi_index::const_mem_fun<DBObject,Vs64,DBObject::getKey2>>> ] Build log was saved at "file://c:\code\win\Debug\obj\BuildLog.htm" ProjABC - 1 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

4 26

local_time.hpp gives ... boost errors
by MAURICE Jean 29 Sep '16

29 Sep '16

Hi, I could narrow the place where boost errors appears. Using VS2010 (with 'show includes') on a Win7 machine. Boost is installed in C:\utilitaires\boost\boost15\boost_1_50_0\boost and this directory name has been replaced by - underneath (so it's version 1.50 !) When I write #pragma message (" avant boost/date_time/local_time/local_time.hpp") #include "boost/date_time/local_time/local_time.hpp" I get all these error messages : avant boost/date_time/local_time/local_time.hpp --/mpl/list/aux_/preprocessed/plain/list20.hpp(157): error C2143: syntax error : missing ',' before 'string' --/mpl/list/aux_/preprocessed/plain/list20.hpp(163): error C2974: 'boost::mpl::list19' : invalid template argument for 'T18', type expected --/mpl/list/aux_/preprocessed/plain/list20.hpp(144) : see declaration of 'boost::mpl::list19' --/mpl/list/aux_/preprocessed/plain/list20.hpp(167) : see reference to class template instantiation 'boost::mpl::list20<T0,T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,__formal>' being compiled --/mpl/list/aux_/preprocessed/plain/list20.hpp(164): error C3203: 'list19' : unspecialized class template can't be used as a template argument for template parameter 'Next', expected a real type --/mpl/list/aux_/preprocessed/plain/list20.hpp(164): error C2955: 'boost::mpl::list19' : use of class template requires template argument list --/mpl/list/aux_/preprocessed/plain/list20.hpp(144) : see declaration of 'boost::mpl::list19' --/mpl/list/aux_/preprocessed/plain/list20.hpp(165): error C2955: 'boost::mpl::l_item' : use of class template requires template argument list --/mpl/list/aux_/item.hpp(30) : see declaration of 'boost::mpl::l_item' --/mpl/aux_/preprocessed/plain/list.hpp(20): error C2143: syntax error : missing ',' before 'string' --/mpl/aux_/preprocessed/plain/list.hpp(14): error C3747: missing default template parameter : parameter 20 --/mpl/aux_/preprocessed/plain/list.hpp(31): error C2975: 'boost::mpl::list' : invalid template argument for 'unnamed-parameter', expected compile-time constant expression --/mpl/aux_/preprocessed/plain/list.hpp(22) : see declaration of 'boost::mpl::list' --/mpl/aux_/preprocessed/plain/list.hpp(34): error C2913: explicit specialization; 'boost::mpl::list' is not a specialization of a class template --/mpl/aux_/preprocessed/plain/list.hpp(46): error C2976: 'boost::mpl::list' : too few template arguments --/mpl/aux_/preprocessed/plain/list.hpp(43) : see declaration of 'boost::mpl::list' --/mpl/aux_/preprocessed/plain/list.hpp(58): error C2976: 'boost::mpl::list' : too few template arguments --/mpl/aux_/preprocessed/plain/list.hpp(55) : see declaration of 'boost::mpl::list' --/mpl/aux_/preprocessed/plain/list.hpp(70): error C2976: 'boost::mpl::list' : too few template arguments --/mpl/aux_/preprocessed/plain/list.hpp(67) : see declaration of 'boost::mpl::list' --/mpl/aux_/preprocessed/plain/list.hpp(82): error C2976: 'boost::mpl::list' : too few template arguments --/mpl/aux_/preprocessed/plain/list.hpp(79) : see declaration of 'boost::mpl::list' --/mpl/aux_/preprocessed/plain/list.hpp(94): error C2976: 'boost::mpl::list' : too few template arguments --/mpl/aux_/preprocessed/plain/list.hpp(91) : see declaration of 'boost::mpl::list' --/mpl/aux_/preprocessed/plain/list.hpp(107): error C2976: 'boost::mpl::list' : too few template arguments --/mpl/aux_/preprocessed/plain/list.hpp(104) : see declaration of 'boost::mpl::list' --/mpl/aux_/preprocessed/plain/list.hpp(120): error C2976: 'boost::mpl::list' : too few template arguments --/mpl/aux_/preprocessed/plain/list.hpp(117) : see declaration of 'boost::mpl::list' --/mpl/aux_/preprocessed/plain/list.hpp(133): error C2976: 'boost::mpl::list' : too few template arguments --/mpl/aux_/preprocessed/plain/list.hpp(130) : see declaration of 'boost::mpl::list' --/mpl/aux_/preprocessed/plain/list.hpp(146): error C2976: 'boost::mpl::list' : too few template arguments --/mpl/aux_/preprocessed/plain/list.hpp(143) : see declaration of 'boost::mpl::list' --/mpl/aux_/preprocessed/plain/list.hpp(159): error C2976: 'boost::mpl::list' : too few template arguments --/mpl/aux_/preprocessed/plain/list.hpp(156) : see declaration of 'boost::mpl::list' --/mpl/aux_/preprocessed/plain/list.hpp(173): error C2976: 'boost::mpl::list' : too few template arguments --/mpl/aux_/preprocessed/plain/list.hpp(170) : see declaration of 'boost::mpl::list' --/mpl/aux_/preprocessed/plain/list.hpp(187): error C2976: 'boost::mpl::list' : too few template arguments --/mpl/aux_/preprocessed/plain/list.hpp(184) : see declaration of 'boost::mpl::list' --/mpl/aux_/preprocessed/plain/list.hpp(201): error C2976: 'boost::mpl::list' : too few template arguments --/mpl/aux_/preprocessed/plain/list.hpp(198) : see declaration of 'boost::mpl::list' --/mpl/aux_/preprocessed/plain/list.hpp(215): error C2976: 'boost::mpl::list' : too few template arguments --/mpl/aux_/preprocessed/plain/list.hpp(212) : see declaration of 'boost::mpl::list' --/mpl/aux_/preprocessed/plain/list.hpp(231): error C2976: 'boost::mpl::list' : too few template arguments --/mpl/aux_/preprocessed/plain/list.hpp(226) : see declaration of 'boost::mpl::list' --/mpl/aux_/preprocessed/plain/list.hpp(249): error C2976: 'boost::mpl::list' : too few template arguments --/mpl/aux_/preprocessed/plain/list.hpp(243) : see declaration of 'boost::mpl::list' --/mpl/aux_/preprocessed/plain/list.hpp(267): error C2976: 'boost::mpl::list' : too few template arguments --/mpl/aux_/preprocessed/plain/list.hpp(261) : see declaration of 'boost::mpl::list' --/mpl/aux_/preprocessed/plain/list.hpp(285): error C2976: 'boost::mpl::list' : too few template arguments --/mpl/aux_/preprocessed/plain/list.hpp(279) : see declaration of 'boost::mpl::list' --/mpl/aux_/preprocessed/plain/list.hpp(303): error C2976: 'boost::mpl::list' : too few template arguments --/mpl/aux_/preprocessed/plain/list.hpp(297) : see declaration of 'boost::mpl::list' --/mpl/aux_/preprocessed/plain/list.hpp(311): error C2143: syntax error : missing ',' before 'string' --/mpl/vector/aux_/preprocessed/plain/vector20.hpp(1020): error C2143: syntax error : missing ',' before 'string' --/mpl/vector/aux_/preprocessed/plain/vector20.hpp(1045): error C2059: syntax error : 'string' --/mpl/vector/aux_/preprocessed/plain/vector20.hpp(1052) : see reference to class template instantiation 'boost::mpl::vector20<T0,T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,__formal>' being compiled --/mpl/vector/aux_/preprocessed/plain/vector20.hpp(1045): error C2238: unexpected token(s) preceding ';' --/mpl/vector/aux_/preprocessed/plain/vector20.hpp(1049): error C2059: syntax error : 'string' --/mpl/vector/aux_/preprocessed/plain/vector20.hpp(1049): error C2238: unexpected token(s) preceding ';' --/mpl/vector/aux_/preprocessed/plain/vector20.hpp(1072): error C2975: 'boost::mpl::vector20' : invalid template argument for 'unnamed-parameter', expected compile-time constant expression --/mpl/vector/aux_/preprocessed/plain/vector20.hpp(1023) : see declaration of 'boost::mpl::vector20' --/mpl/vector/aux_/preprocessed/plain/vector20.hpp(1073) : see reference to class template instantiation 'boost::mpl::push_front_impl<boost::mpl::aux::vector_tag<N>>::apply<Vector,T>' being compiled with [ N=19 ] --/mpl/vector/aux_/preprocessed/plain/vector20.hpp(1114): error C2975: 'boost::mpl::vector20' : invalid template argument for 'unnamed-parameter', expected compile-time constant expression --/mpl/vector/aux_/preprocessed/plain/vector20.hpp(1023) : see declaration of 'boost::mpl::vector20' --/mpl/vector/aux_/preprocessed/plain/vector20.hpp(1115) : see reference to class template instantiation 'boost::mpl::push_back_impl<boost::mpl::aux::vector_tag<N>>::apply<Vector,T>' being compiled with [ N=19 ] --/mpl/aux_/preprocessed/plain/vector.hpp(20): error C2143: syntax error : missing ',' before 'string' --/mpl/aux_/preprocessed/plain/vector.hpp(14): error C3747: missing default template parameter : parameter 20 --/mpl/aux_/preprocessed/plain/vector.hpp(31): error C2975: 'boost::mpl::vector' : invalid template argument for 'unnamed-parameter', expected compile-time constant expression --/mpl/aux_/preprocessed/plain/vector.hpp(22) : see declaration of 'boost::mpl::vector' --/mpl/aux_/preprocessed/plain/vector.hpp(34): error C2913: explicit specialization; 'boost::mpl::vector' is not a specialization of a class template --/mpl/aux_/preprocessed/plain/vector.hpp(46): error C2976: 'boost::mpl::vector' : too few template arguments --/mpl/aux_/preprocessed/plain/vector.hpp(43) : see declaration of 'boost::mpl::vector' --/mpl/aux_/preprocessed/plain/vector.hpp(58): error C2976: 'boost::mpl::vector' : too few template arguments --/mpl/aux_/preprocessed/plain/vector.hpp(55) : see declaration of 'boost::mpl::vector' --/mpl/aux_/preprocessed/plain/vector.hpp(70): error C2976: 'boost::mpl::vector' : too few template arguments --/mpl/aux_/preprocessed/plain/vector.hpp(67) : see declaration of 'boost::mpl::vector' --/mpl/aux_/preprocessed/plain/vector.hpp(82): error C2976: 'boost::mpl::vector' : too few template arguments --/mpl/aux_/preprocessed/plain/vector.hpp(79) : see declaration of 'boost::mpl::vector' --/mpl/aux_/preprocessed/plain/vector.hpp(94): error C2976: 'boost::mpl::vector' : too few template arguments --/mpl/aux_/preprocessed/plain/vector.hpp(91) : see declaration of 'boost::mpl::vector' --/mpl/aux_/preprocessed/plain/vector.hpp(107): error C2976: 'boost::mpl::vector' : too few template arguments --/mpl/aux_/preprocessed/plain/vector.hpp(104) : see declaration of 'boost::mpl::vector' --/mpl/aux_/preprocessed/plain/vector.hpp(120): error C2976: 'boost::mpl::vector' : too few template arguments --/mpl/aux_/preprocessed/plain/vector.hpp(117) : see declaration of 'boost::mpl::vector' --/mpl/aux_/preprocessed/plain/vector.hpp(133): error C2976: 'boost::mpl::vector' : too few template arguments --/mpl/aux_/preprocessed/plain/vector.hpp(130) : see declaration of 'boost::mpl::vector' --/mpl/aux_/preprocessed/plain/vector.hpp(146): error C2976: 'boost::mpl::vector' : too few template arguments --/mpl/aux_/preprocessed/plain/vector.hpp(143) : see declaration of 'boost::mpl::vector' --/mpl/aux_/preprocessed/plain/vector.hpp(159): error C2976: 'boost::mpl::vector' : too few template arguments --/mpl/aux_/preprocessed/plain/vector.hpp(156) : see declaration of 'boost::mpl::vector' --/mpl/aux_/preprocessed/plain/vector.hpp(173): error C2976: 'boost::mpl::vector' : too few template arguments --/mpl/aux_/preprocessed/plain/vector.hpp(170) : see declaration of 'boost::mpl::vector' --/mpl/aux_/preprocessed/plain/vector.hpp(187): error C2976: 'boost::mpl::vector' : too few template arguments --/mpl/aux_/preprocessed/plain/vector.hpp(184) : see declaration of 'boost::mpl::vector' --/mpl/aux_/preprocessed/plain/vector.hpp(201): error C2976: 'boost::mpl::vector' : too few template arguments --/mpl/aux_/preprocessed/plain/vector.hpp(198) : see declaration of 'boost::mpl::vector' --/mpl/aux_/preprocessed/plain/vector.hpp(215): error C2976: 'boost::mpl::vector' : too few template arguments --/mpl/aux_/preprocessed/plain/vector.hpp(212) : see declaration of 'boost::mpl::vector' --/mpl/aux_/preprocessed/plain/vector.hpp(231): error C2976: 'boost::mpl::vector' : too few template arguments --/mpl/aux_/preprocessed/plain/vector.hpp(226) : see declaration of 'boost::mpl::vector' --/mpl/aux_/preprocessed/plain/vector.hpp(249): error C2976: 'boost::mpl::vector' : too few template arguments --/mpl/aux_/preprocessed/plain/vector.hpp(243) : see declaration of 'boost::mpl::vector' --/mpl/aux_/preprocessed/plain/vector.hpp(267): error C2976: 'boost::mpl::vector' : too few template arguments --/mpl/aux_/preprocessed/plain/vector.hpp(261) : see declaration of 'boost::mpl::vector' --/mpl/aux_/preprocessed/plain/vector.hpp(285): error C2976: 'boost::mpl::vector' : too few template arguments --/mpl/aux_/preprocessed/plain/vector.hpp(279) : see declaration of 'boost::mpl::vector' --/mpl/aux_/preprocessed/plain/vector.hpp(303): error C2976: 'boost::mpl::vector' : too few template arguments --/mpl/aux_/preprocessed/plain/vector.hpp(297) : see declaration of 'boost::mpl::vector' --/mpl/aux_/preprocessed/plain/vector.hpp(311): error C2143: syntax error : missing ',' before 'string' --/math/policies/policy.hpp(406): error C3203: 'list' : unspecialized class template can't be used as a template argument for template parameter 'Seq', expected a real type --/math/policies/policy.hpp(440) : see reference to class template instantiation 'boost::math::policies::policy<A1,A2,A3,A4,A5,A6,A7,A8,A9,A10,A11,A12,A13>' being compiled --/math/policies/policy.hpp(406): error C2955: 'boost::mpl::list' : use of class template requires template argument list --/mpl/aux_/preprocessed/plain/list.hpp(314) : see declaration of 'boost::mpl::list' --/math/policies/policy.hpp(407): error C3203: 'list' : unspecialized class template can't be used as a template argument for template parameter 'Seq', expected a real type --/math/policies/policy.hpp(407): error C2955: 'boost::mpl::list' : use of class template requires template argument list --/mpl/aux_/preprocessed/plain/list.hpp(314) : see declaration of 'boost::mpl::list' --/math/policies/policy.hpp(408): error C3203: 'list' : unspecialized class template can't be used as a template argument for template parameter 'Seq', expected a real type --/math/policies/policy.hpp(408): error C2955: 'boost::mpl::list' : use of class template requires template argument list --/mpl/aux_/preprocessed/plain/list.hpp(314) : see declaration of 'boost::mpl::list' --/math/policies/policy.hpp(409): error C3203: 'list' : unspecialized class template can't be used as a template argument for template parameter 'Seq', expected a real type --/math/policies/policy.hpp(409): error C2955: 'boost::mpl::list' : use of class template requires template argument list --/mpl/aux_/preprocessed/plain/list.hpp(314) : see declaration of 'boost::mpl::list' --/math/policies/policy.hpp(410): error C3203: 'list' : unspecialized class template can't be used as a template argument for template parameter 'Seq', expected a real type --/math/policies/policy.hpp(410): error C2955: 'boost::mpl::list' : use of class template requires template argument list --/mpl/aux_/preprocessed/plain/list.hpp(314) : see declaration of 'boost::mpl::list' --/math/policies/policy.hpp(411): error C3203: 'list' : unspecialized class template can't be used as a template argument for template parameter 'Seq', expected a real type --/math/policies/policy.hpp(411): error C2955: 'boost::mpl::list' : use of class template requires template argument list --/mpl/aux_/preprocessed/plain/list.hpp(314) : see declaration of 'boost::mpl::list' --/math/policies/policy.hpp(412): error C3203: 'list' : unspecialized class template can't be used as a template argument for template parameter 'Seq', expected a real type --/math/policies/policy.hpp(412): error C2955: 'boost::mpl::list' : use of class template requires template argument list --/mpl/aux_/preprocessed/plain/list.hpp(314) : see declaration of 'boost::mpl::list' --/math/policies/policy.hpp(413): error C3203: 'list' : unspecialized class template can't be used as a template argument for template parameter 'Seq', expected a real type --/math/policies/policy.hpp(413): error C2955: 'boost::mpl::list' : use of class template requires template argument list --/mpl/aux_/preprocessed/plain/list.hpp(314) : see declaration of 'boost::mpl::list' --/math/policies/policy.hpp(418): error C3203: 'list' : unspecialized class template can't be used as a template argument for template parameter 'Seq', expected a real type --/math/policies/policy.hpp(418): error C2955: 'boost::mpl::list' : use of class template requires template argument list --/mpl/aux_/preprocessed/plain/list.hpp(314) : see declaration of 'boost::mpl::list' --/math/policies/policy.hpp(419): error C3203: 'list' : unspecialized class template can't be used as a template argument for template parameter 'Seq', expected a real type --/math/policies/policy.hpp(419): error C2955: 'boost::mpl::list' : use of class template requires template argument list --/mpl/aux_/preprocessed/plain/list.hpp(314) : see declaration of 'boost::mpl::list' --/math/policies/policy.hpp(425): error C3203: 'list' : unspecialized class template can't be used as a template argument for template parameter 'Seq', expected a real type --/math/policies/policy.hpp(425): error C2955: 'boost::mpl::list' : use of class template requires template argument list --/mpl/aux_/preprocessed/plain/list.hpp(314) : see declaration of 'boost::mpl::list' --/math/policies/policy.hpp(426): error C3203: 'list' : unspecialized class template can't be used as a template argument for template parameter 'Seq', expected a real type --/math/policies/policy.hpp(426): error C2955: 'boost::mpl::list' : use of class template requires template argument list --/mpl/aux_/preprocessed/plain/list.hpp(314) : see declaration of 'boost::mpl::list' --/math/policies/policy.hpp(430): error C3203: 'list' : unspecialized class template can't be used as a template argument for template parameter 'Seq', expected a real type --/math/policies/policy.hpp(430): error C2955: 'boost::mpl::list' : use of class template requires template argument list --/mpl/aux_/preprocessed/plain/list.hpp(314) : see declaration of 'boost::mpl::list' --/math/policies/policy.hpp(434): error C3203: 'list' : unspecialized class template can't be used as a template argument for template parameter 'Seq', expected a real type --/math/policies/policy.hpp(434): error C2955: 'boost::mpl::list' : use of class template requires template argument list --/mpl/aux_/preprocessed/plain/list.hpp(314) : see declaration of 'boost::mpl::list' --/math/policies/policy.hpp(438): error C3203: 'list' : unspecialized class template can't be used as a template argument for template parameter 'Seq', expected a real type --/math/policies/policy.hpp(438): error C2955: 'boost::mpl::list' : use of class template requires template argument list --/mpl/aux_/preprocessed/plain/list.hpp(314) : see declaration of 'boost::mpl::list' --/math/policies/policy.hpp(439): error C3203: 'list' : unspecialized class template can't be used as a template argument for template parameter 'Seq', expected a real type --/math/policies/policy.hpp(439): error C2955: 'boost::mpl::list' : use of class template requires template argument list --/mpl/aux_/preprocessed/plain/list.hpp(314) : see declaration of 'boost::mpl::list' --/math/policies/policy.hpp(514): error C3203: 'list' : unspecialized class template can't be used as a template argument for template parameter 'Seq', expected a real type --/math/policies/policy.hpp(588) : see reference to class template instantiation 'boost::math::policies::normalise<Policy,A1,A2,A3,A4,A5,A6,A7,A8,A9,A10,A11,A12,A13>' being compiled --/math/policies/policy.hpp(514): error C2955: 'boost::mpl::list' : use of class template requires template argument list --/mpl/aux_/preprocessed/plain/list.hpp(314) : see declaration of 'boost::mpl::list' --/math/policies/policy.hpp(515): error C3203: 'list' : unspecialized class template can't be used as a template argument for template parameter 'Seq', expected a real type --/math/policies/policy.hpp(515): error C2955: 'boost::mpl::list' : use of class template requires template argument list --/mpl/aux_/preprocessed/plain/list.hpp(314) : see declaration of 'boost::mpl::list' --/math/policies/policy.hpp(516): error C3203: 'list' : unspecialized class template can't be used as a template argument for template parameter 'Seq', expected a real type --/math/policies/policy.hpp(516): error C2955: 'boost::mpl::list' : use of class template requires template argument list --/mpl/aux_/preprocessed/plain/list.hpp(314) : see declaration of 'boost::mpl::list' --/math/policies/policy.hpp(517): error C3203: 'list' : unspecialized class template can't be used as a template argument for template parameter 'Seq', expected a real type --/math/policies/policy.hpp(517): error C2955: 'boost::mpl::list' : use of class template requires template argument list --/mpl/aux_/preprocessed/plain/list.hpp(314) : see declaration of 'boost::mpl::list' --/math/policies/policy.hpp(518): error C3203: 'list' : unspecialized class template can't be used as a template argument for template parameter 'Seq', expected a real type --/math/policies/policy.hpp(518): fatal error C1003: error count exceeds 100; stopping compilation What have I done wrong ? TIA Jean

2 1

ambiguous overload for operator>> error when using lexical_cast with qvm::vec
by kique G 28 Sep '16

28 Sep '16

Hi, I am trying to use lexical_cast to convert from strings to qvm vectors, but I keep getting an ambiguous operator>> error. I have overloaded the >> operator for istreams and that seems to be working fine when I use it to read from a istringstream. In a lexical_cast, though, I get the "ambiguous overload for operator>>" error. I have tried declaring my operator>> overload inside the std and boost::qvm namespaces to check if it was something related to ADL, but I keep getting the same error. The thing is the other candidates do not seem to make a lot of sense to me. Could somebody please tell me what I am doing wrong? Thanks in advance, Enrique Garcia This is a minimal example (I am building gcc/boost from the last versions on their repositories): #include <iostream> #include <boost/qvm/vec.hpp> #include <boost/lexical_cast.hpp> std::ostream& operator<<(std::ostream& out, boost::qvm::vec<float, 3> const& v) { out << "(" << v.a[0] << "," << v.a[1] << "," << v.a[2] << ")"; } std::istream& operator>>(std::istream& in, boost::qvm::vec<float, 3>& v) { char c; return in >> c >> v.a[0] >> c >> v.a[1] >> c >> v.a[2] >> c; } int main() { boost::qvm::vec<float, 3> vect { 1.0f, 2.0f, 3.0f }; std::cout << vect << std::endl; // This code works just fine. (4.0,5.0,6.0) is printed std::istringstream istream("(4.0,5.0,6.0"); istream >> vect; std::cout << vect << std::endl; // This code generates an ambiguous overload for operator>> error (see below) vect = boost::lexical_cast<boost::qvm::vec<float, 3>>("(1.0,2.0,3.0)"); std::cout << vect << std::endl; return 0; } This is the error I am getting from gcc: In file included from /usr/local/include/boost/config.hpp:61:0, from /usr/local/include/boost/static_assert.hpp:17, from /usr/local/include/boost/qvm/static_assert.hpp:7, from /usr/local/include/boost/qvm/vec.hpp:11, from /home/kique/Documents/Bitflow2x/source/main.cpp:57: /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp: In instantiation of 'const bool boost::detail::has_right_shift_impl::operator_exists<std::basic_istream<char>, boost::qvm::vec<float, 3> >::value': /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp:179:4: required from 'const bool boost::detail::has_right_shift_impl::trait_impl1<std::basic_istream<char>, boost::qvm::vec<float, 3>, boost::detail::has_right_shift_impl::dont_care, false>::value' /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp:208:4: required from 'const bool boost::detail::has_right_shift_impl::trait_impl<std::basic_istream<char>, boost::qvm::vec<float, 3>, boost::detail::has_right_shift_impl::dont_care>::value' /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp:216:8: required from 'struct boost::has_right_shift<std::basic_istream<char>, boost::qvm::vec<float, 3>, boost::detail::has_right_shift_impl::dont_care>' /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:241:21: required from 'struct boost::detail::deduce_target_char_impl<boost::detail::deduce_character_type_later<boost::qvm::vec<float, 3> > >' /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:270:89: required from 'struct boost::detail::deduce_target_char<boost::qvm::vec<float, 3> >' /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:407:92: required from 'struct boost::detail::lexical_cast_stream_traits<const char*, boost::qvm::vec<float, 3> >' /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:468:15: required from 'struct boost::detail::lexical_converter_impl<boost::qvm::vec<float, 3>, const char*>' /usr/local/include/boost/lexical_cast/try_lexical_convert.hpp:196:44: required from 'bool boost::conversion::detail::try_lexical_convert(const Source&, Target&) [with Target = boost::qvm::vec<float, 3>; Source = char [14]]' /usr/local/include/boost/lexical_cast.hpp:41:60: required from 'Target boost::lexical_cast(const Source&) [with Target = boost::qvm::vec<float, 3>; Source = char [14]]' /home/kique/Documents/Bitflow2x/source/main.cpp:83:72: required from here /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp:158:70: error: ambiguous overload for 'operator>>' (operand types are 'std::basic_istream<char>' and 'boost::qvm::vec<float, 3>') BOOST_STATIC_CONSTANT(bool, value = (sizeof(s_check(((make<Lhs>() BOOST_TT_TRAIT_OP make<Rhs>()),make<has_operator>())))==sizeof(::boost::type_traits::yes_type))); ^ In file included from /usr/local/include/c++/7.0.0/iostream:40:0, from /home/kique/Documents/Bitflow2x/source/main.cpp:56: /usr/local/include/c++/7.0.0/istream:120:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__istream_type& (*)(std::basic_istream<_CharT, _Traits>::__istream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>] operator>>(__istream_type& (*__pf)(__istream_type&)) ^~~~~~~~ /usr/local/include/c++/7.0.0/istream:124:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__ios_type& (*)(std::basic_istream<_CharT, _Traits>::__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>; std::basic_istream<_CharT, _Traits>::__ios_type = std::basic_ios<char>] operator>>(__ios_type& (*__pf)(__ios_type&)) ^~~~~~~~ /usr/local/include/c++/7.0.0/istream:131:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::ios_base& (*)(std::ios_base&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>] operator>>(ios_base& (*__pf)(ios_base&)) ^~~~~~~~ /usr/local/include/c++/7.0.0/istream:259:7: note: candidate: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__streambuf_type*) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__streambuf_type = std::basic_streambuf<char>] operator>>(__streambuf_type* __sb); ^~~~~~~~ In file included from /usr/local/include/boost/type_traits/has_right_shift.hpp:43:0, from /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:39, from /usr/local/include/boost/lexical_cast/try_lexical_convert.hpp:42, from /usr/local/include/boost/lexical_cast.hpp:32, from /home/kique/Documents/Bitflow2x/source/main.cpp:58: /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp:70:13: note: candidate: boost::detail::has_right_shift_impl::no_operator boost::detail::has_right_shift_impl::operator>>(const boost::detail::has_right_shift_impl::any&, const boost::detail::has_right_shift_impl::any&) no_operator operator BOOST_TT_TRAIT_OP (const any&, const any&); ^~~~~~~~ In file included from /usr/local/include/c++/7.0.0/iostream:40:0, from /home/kique/Documents/Bitflow2x/source/main.cpp:56: /usr/local/include/c++/7.0.0/istream:808:5: note: candidate: std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char*) [with _Traits = std::char_traits<char>] operator>>(basic_istream<char, _Traits>& __in, signed char* __s) ^~~~~~~~ /usr/local/include/c++/7.0.0/istream:803:5: note: candidate: std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char*) [with _Traits = std::char_traits<char>] operator>>(basic_istream<char, _Traits>& __in, unsigned char* __s) ^~~~~~~~ In file included from /usr/local/include/boost/config.hpp:61:0, from /usr/local/include/boost/static_assert.hpp:17, from /usr/local/include/boost/qvm/static_assert.hpp:7, from /usr/local/include/boost/qvm/vec.hpp:11, from /home/kique/Documents/Bitflow2x/source/main.cpp:57: /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp: In instantiation of 'const bool boost::detail::has_right_shift_impl::operator_returns_void<std::basic_istream<char>, boost::qvm::vec<float, 3> >::value': /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp:179:4: required from 'const bool boost::detail::has_right_shift_impl::trait_impl1<std::basic_istream<char>, boost::qvm::vec<float, 3>, boost::detail::has_right_shift_impl::dont_care, false>::value' /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp:208:4: required from 'const bool boost::detail::has_right_shift_impl::trait_impl<std::basic_istream<char>, boost::qvm::vec<float, 3>, boost::detail::has_right_shift_impl::dont_care>::value' /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp:216:8: required from 'struct boost::has_right_shift<std::basic_istream<char>, boost::qvm::vec<float, 3>, boost::detail::has_right_shift_impl::dont_care>' /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:241:21: required from 'struct boost::detail::deduce_target_char_impl<boost::detail::deduce_character_type_later<boost::qvm::vec<float, 3> > >' /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:270:89: required from 'struct boost::detail::deduce_target_char<boost::qvm::vec<float, 3> >' /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:407:92: required from 'struct boost::detail::lexical_cast_stream_traits<const char*, boost::qvm::vec<float, 3> >' /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:468:15: required from 'struct boost::detail::lexical_converter_impl<boost::qvm::vec<float, 3>, const char*>' /usr/local/include/boost/lexical_cast/try_lexical_convert.hpp:196:44: required from 'bool boost::conversion::detail::try_lexical_convert(const Source&, Target&) [with Target = boost::qvm::vec<float, 3>; Source = char [14]]' /usr/local/include/boost/lexical_cast.hpp:41:60: required from 'Target boost::lexical_cast(const Source&) [with Target = boost::qvm::vec<float, 3>; Source = char [14]]' /home/kique/Documents/Bitflow2x/source/main.cpp:83:72: required from here /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp:95:114: error: ambiguous overload for 'operator>>' (operand types are 'std::basic_istream<char>' and 'boost::qvm::vec<float, 3>') BOOST_STATIC_CONSTANT(bool, value = (sizeof(::boost::type_traits::yes_type)==sizeof(returns_void((make<Lhs>() BOOST_TT_TRAIT_OP make<Rhs>(),returns_void_t()))))); ^ In file included from /usr/local/include/c++/7.0.0/iostream:40:0, from /home/kique/Documents/Bitflow2x/source/main.cpp:56: /usr/local/include/c++/7.0.0/istream:120:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__istream_type& (*)(std::basic_istream<_CharT, _Traits>::__istream_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>] operator>>(__istream_type& (*__pf)(__istream_type&)) ^~~~~~~~ /usr/local/include/c++/7.0.0/istream:124:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__ios_type& (*)(std::basic_istream<_CharT, _Traits>::__ios_type&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>; std::basic_istream<_CharT, _Traits>::__ios_type = std::basic_ios<char>] operator>>(__ios_type& (*__pf)(__ios_type&)) ^~~~~~~~ /usr/local/include/c++/7.0.0/istream:131:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::ios_base& (*)(std::ios_base&)) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<char>] operator>>(ios_base& (*__pf)(ios_base&)) ^~~~~~~~ /usr/local/include/c++/7.0.0/istream:259:7: note: candidate: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__streambuf_type*) [with _CharT = char; _Traits = std::char_traits<char>; std::basic_istream<_CharT, _Traits>::__streambuf_type = std::basic_streambuf<char>] operator>>(__streambuf_type* __sb); ^~~~~~~~ In file included from /usr/local/include/boost/type_traits/has_right_shift.hpp:43:0, from /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:39, from /usr/local/include/boost/lexical_cast/try_lexical_convert.hpp:42, from /usr/local/include/boost/lexical_cast.hpp:32, from /home/kique/Documents/Bitflow2x/source/main.cpp:58: /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp:70:13: note: candidate: boost::detail::has_right_shift_impl::no_operator boost::detail::has_right_shift_impl::operator>>(const boost::detail::has_right_shift_impl::any&, const boost::detail::has_right_shift_impl::any&) no_operator operator BOOST_TT_TRAIT_OP (const any&, const any&); ^~~~~~~~ In file included from /usr/local/include/c++/7.0.0/iostream:40:0, from /home/kique/Documents/Bitflow2x/source/main.cpp:56: /usr/local/include/c++/7.0.0/istream:808:5: note: candidate: std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, signed char*) [with _Traits = std::char_traits<char>] operator>>(basic_istream<char, _Traits>& __in, signed char* __s) ^~~~~~~~ /usr/local/include/c++/7.0.0/istream:803:5: note: candidate: std::basic_istream<char, _Traits>& std::operator>>(std::basic_istream<char, _Traits>&, unsigned char*) [with _Traits = std::char_traits<char>] operator>>(basic_istream<char, _Traits>& __in, unsigned char* __s) ^~~~~~~~ In file included from /usr/local/include/boost/lexical_cast/try_lexical_convert.hpp:42:0, from /usr/local/include/boost/lexical_cast.hpp:32, from /home/kique/Documents/Bitflow2x/source/main.cpp:58: /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp: In instantiation of 'struct boost::detail::deduce_target_char_impl<boost::detail::deduce_character_type_later<boost::qvm::vec<float, 3> > >': /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:270:89: required from 'struct boost::detail::deduce_target_char<boost::qvm::vec<float, 3> >' /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:407:92: required from 'struct boost::detail::lexical_cast_stream_traits<const char*, boost::qvm::vec<float, 3> >' /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:468:15: required from 'struct boost::detail::lexical_converter_impl<boost::qvm::vec<float, 3>, const char*>' /usr/local/include/boost/lexical_cast/try_lexical_convert.hpp:196:44: required from 'bool boost::conversion::detail::try_lexical_convert(const Source&, Target&) [with Target = boost::qvm::vec<float, 3>; Source = char [14]]' /usr/local/include/boost/lexical_cast.hpp:41:60: required from 'Target boost::lexical_cast(const Source&) [with Target = boost::qvm::vec<float, 3>; Source = char [14]]' /home/kique/Documents/Bitflow2x/source/main.cpp:83:72: required from here /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:241:21: error: 'value' is not a member of 'boost::has_right_shift<std::basic_istream<char>, boost::qvm::vec<float, 3>, boost::detail::has_right_shift_impl::dont_care>' >::type type; ^~~~ In file included from /usr/local/include/boost/qvm/static_assert.hpp:7:0, from /usr/local/include/boost/qvm/vec.hpp:11, from /home/kique/Documents/Bitflow2x/source/main.cpp:57: /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:243:13: error: 'value' is not a member of 'boost::detail::deduce_target_char_impl<boost::detail::deduce_character_type_later<boost::qvm::vec<float, 3> > >::result_t {aka boost::has_right_shift<std::basic_istream<char>, boost::qvm::vec<float, 3>, boost::detail::has_right_shift_impl::dont_care>}' BOOST_STATIC_ASSERT_MSG((result_t::value || boost::has_right_shift<std::basic_istream<wchar_t>, T >::value), ^ In file included from /usr/local/include/boost/config.hpp:61:0, from /usr/local/include/boost/static_assert.hpp:17, from /usr/local/include/boost/qvm/static_assert.hpp:7, from /usr/local/include/boost/qvm/vec.hpp:11, from /home/kique/Documents/Bitflow2x/source/main.cpp:57: /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp: In instantiation of 'const bool boost::detail::has_right_shift_impl::operator_exists<std::basic_istream<wchar_t>, boost::qvm::vec<float, 3> >::value': /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp:179:4: required from 'const bool boost::detail::has_right_shift_impl::trait_impl1<std::basic_istream<wchar_t>, boost::qvm::vec<float, 3>, boost::detail::has_right_shift_impl::dont_care, false>::value' /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp:208:4: required from 'const bool boost::detail::has_right_shift_impl::trait_impl<std::basic_istream<wchar_t>, boost::qvm::vec<float, 3>, boost::detail::has_right_shift_impl::dont_care>::value' /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp:216:8: required from 'struct boost::has_right_shift<std::basic_istream<wchar_t>, boost::qvm::vec<float, 3>, boost::detail::has_right_shift_impl::dont_care>' /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:243:13: required from 'struct boost::detail::deduce_target_char_impl<boost::detail::deduce_character_type_later<boost::qvm::vec<float, 3> > >' /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:270:89: required from 'struct boost::detail::deduce_target_char<boost::qvm::vec<float, 3> >' /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:407:92: required from 'struct boost::detail::lexical_cast_stream_traits<const char*, boost::qvm::vec<float, 3> >' /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:468:15: required from 'struct boost::detail::lexical_converter_impl<boost::qvm::vec<float, 3>, const char*>' /usr/local/include/boost/lexical_cast/try_lexical_convert.hpp:196:44: required from 'bool boost::conversion::detail::try_lexical_convert(const Source&, Target&) [with Target = boost::qvm::vec<float, 3>; Source = char [14]]' /usr/local/include/boost/lexical_cast.hpp:41:60: required from 'Target boost::lexical_cast(const Source&) [with Target = boost::qvm::vec<float, 3>; Source = char [14]]' /home/kique/Documents/Bitflow2x/source/main.cpp:83:72: required from here /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp:158:70: error: ambiguous overload for 'operator>>' (operand types are 'std::basic_istream<wchar_t>' and 'boost::qvm::vec<float, 3>') BOOST_STATIC_CONSTANT(bool, value = (sizeof(s_check(((make<Lhs>() BOOST_TT_TRAIT_OP make<Rhs>()),make<has_operator>())))==sizeof(::boost::type_traits::yes_type))); ^ In file included from /usr/local/include/c++/7.0.0/iostream:40:0, from /home/kique/Documents/Bitflow2x/source/main.cpp:56: /usr/local/include/c++/7.0.0/istream:120:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__istream_type& (*)(std::basic_istream<_CharT, _Traits>::__istream_type&)) [with _CharT = wchar_t; _Traits = std::char_traits<wchar_t>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<wchar_t>] operator>>(__istream_type& (*__pf)(__istream_type&)) ^~~~~~~~ /usr/local/include/c++/7.0.0/istream:124:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__ios_type& (*)(std::basic_istream<_CharT, _Traits>::__ios_type&)) [with _CharT = wchar_t; _Traits = std::char_traits<wchar_t>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<wchar_t>; std::basic_istream<_CharT, _Traits>::__ios_type = std::basic_ios<wchar_t>] operator>>(__ios_type& (*__pf)(__ios_type&)) ^~~~~~~~ /usr/local/include/c++/7.0.0/istream:131:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::ios_base& (*)(std::ios_base&)) [with _CharT = wchar_t; _Traits = std::char_traits<wchar_t>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<wchar_t>] operator>>(ios_base& (*__pf)(ios_base&)) ^~~~~~~~ /usr/local/include/c++/7.0.0/istream:259:7: note: candidate: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__streambuf_type*) [with _CharT = wchar_t; _Traits = std::char_traits<wchar_t>; std::basic_istream<_CharT, _Traits>::__streambuf_type = std::basic_streambuf<wchar_t>] operator>>(__streambuf_type* __sb); ^~~~~~~~ In file included from /usr/local/include/boost/type_traits/has_right_shift.hpp:43:0, from /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:39, from /usr/local/include/boost/lexical_cast/try_lexical_convert.hpp:42, from /usr/local/include/boost/lexical_cast.hpp:32, from /home/kique/Documents/Bitflow2x/source/main.cpp:58: /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp:70:13: note: candidate: boost::detail::has_right_shift_impl::no_operator boost::detail::has_right_shift_impl::operator>>(const boost::detail::has_right_shift_impl::any&, const boost::detail::has_right_shift_impl::any&) no_operator operator BOOST_TT_TRAIT_OP (const any&, const any&); ^~~~~~~~ In file included from /usr/local/include/boost/config.hpp:61:0, from /usr/local/include/boost/static_assert.hpp:17, from /usr/local/include/boost/qvm/static_assert.hpp:7, from /usr/local/include/boost/qvm/vec.hpp:11, from /home/kique/Documents/Bitflow2x/source/main.cpp:57: /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp: In instantiation of 'const bool boost::detail::has_right_shift_impl::operator_returns_void<std::basic_istream<wchar_t>, boost::qvm::vec<float, 3> >::value': /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp:179:4: required from 'const bool boost::detail::has_right_shift_impl::trait_impl1<std::basic_istream<wchar_t>, boost::qvm::vec<float, 3>, boost::detail::has_right_shift_impl::dont_care, false>::value' /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp:208:4: required from 'const bool boost::detail::has_right_shift_impl::trait_impl<std::basic_istream<wchar_t>, boost::qvm::vec<float, 3>, boost::detail::has_right_shift_impl::dont_care>::value' /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp:216:8: required from 'struct boost::has_right_shift<std::basic_istream<wchar_t>, boost::qvm::vec<float, 3>, boost::detail::has_right_shift_impl::dont_care>' /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:243:13: required from 'struct boost::detail::deduce_target_char_impl<boost::detail::deduce_character_type_later<boost::qvm::vec<float, 3> > >' /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:270:89: required from 'struct boost::detail::deduce_target_char<boost::qvm::vec<float, 3> >' /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:407:92: required from 'struct boost::detail::lexical_cast_stream_traits<const char*, boost::qvm::vec<float, 3> >' /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:468:15: required from 'struct boost::detail::lexical_converter_impl<boost::qvm::vec<float, 3>, const char*>' /usr/local/include/boost/lexical_cast/try_lexical_convert.hpp:196:44: required from 'bool boost::conversion::detail::try_lexical_convert(const Source&, Target&) [with Target = boost::qvm::vec<float, 3>; Source = char [14]]' /usr/local/include/boost/lexical_cast.hpp:41:60: required from 'Target boost::lexical_cast(const Source&) [with Target = boost::qvm::vec<float, 3>; Source = char [14]]' /home/kique/Documents/Bitflow2x/source/main.cpp:83:72: required from here /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp:95:114: error: ambiguous overload for 'operator>>' (operand types are 'std::basic_istream<wchar_t>' and 'boost::qvm::vec<float, 3>') BOOST_STATIC_CONSTANT(bool, value = (sizeof(::boost::type_traits::yes_type)==sizeof(returns_void((make<Lhs>() BOOST_TT_TRAIT_OP make<Rhs>(),returns_void_t()))))); ^ In file included from /usr/local/include/c++/7.0.0/iostream:40:0, from /home/kique/Documents/Bitflow2x/source/main.cpp:56: /usr/local/include/c++/7.0.0/istream:120:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__istream_type& (*)(std::basic_istream<_CharT, _Traits>::__istream_type&)) [with _CharT = wchar_t; _Traits = std::char_traits<wchar_t>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<wchar_t>] operator>>(__istream_type& (*__pf)(__istream_type&)) ^~~~~~~~ /usr/local/include/c++/7.0.0/istream:124:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__ios_type& (*)(std::basic_istream<_CharT, _Traits>::__ios_type&)) [with _CharT = wchar_t; _Traits = std::char_traits<wchar_t>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<wchar_t>; std::basic_istream<_CharT, _Traits>::__ios_type = std::basic_ios<wchar_t>] operator>>(__ios_type& (*__pf)(__ios_type&)) ^~~~~~~~ /usr/local/include/c++/7.0.0/istream:131:7: note: candidate: std::basic_istream<_CharT, _Traits>::__istream_type& std::basic_istream<_CharT, _Traits>::operator>>(std::ios_base& (*)(std::ios_base&)) [with _CharT = wchar_t; _Traits = std::char_traits<wchar_t>; std::basic_istream<_CharT, _Traits>::__istream_type = std::basic_istream<wchar_t>] operator>>(ios_base& (*__pf)(ios_base&)) ^~~~~~~~ /usr/local/include/c++/7.0.0/istream:259:7: note: candidate: std::basic_istream<_CharT, _Traits>& std::basic_istream<_CharT, _Traits>::operator>>(std::basic_istream<_CharT, _Traits>::__streambuf_type*) [with _CharT = wchar_t; _Traits = std::char_traits<wchar_t>; std::basic_istream<_CharT, _Traits>::__streambuf_type = std::basic_streambuf<wchar_t>] operator>>(__streambuf_type* __sb); ^~~~~~~~ In file included from /usr/local/include/boost/type_traits/has_right_shift.hpp:43:0, from /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:39, from /usr/local/include/boost/lexical_cast/try_lexical_convert.hpp:42, from /usr/local/include/boost/lexical_cast.hpp:32, from /home/kique/Documents/Bitflow2x/source/main.cpp:58: /usr/local/include/boost/type_traits/detail/has_binary_operator.hpp:70:13: note: candidate: boost::detail::has_right_shift_impl::no_operator boost::detail::has_right_shift_impl::operator>>(const boost::detail::has_right_shift_impl::any&, const boost::detail::has_right_shift_impl::any&) no_operator operator BOOST_TT_TRAIT_OP (const any&, const any&); ^~~~~~~~ In file included from /usr/local/include/boost/qvm/static_assert.hpp:7:0, from /usr/local/include/boost/qvm/vec.hpp:11, from /home/kique/Documents/Bitflow2x/source/main.cpp:57: /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp: In instantiation of 'struct boost::detail::deduce_target_char_impl<boost::detail::deduce_character_type_later<boost::qvm::vec<float, 3> > >': /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:270:89: required from 'struct boost::detail::deduce_target_char<boost::qvm::vec<float, 3> >' /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:407:92: required from 'struct boost::detail::lexical_cast_stream_traits<const char*, boost::qvm::vec<float, 3> >' /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:468:15: required from 'struct boost::detail::lexical_converter_impl<boost::qvm::vec<float, 3>, const char*>' /usr/local/include/boost/lexical_cast/try_lexical_convert.hpp:196:44: required from 'bool boost::conversion::detail::try_lexical_convert(const Source&, Target&) [with Target = boost::qvm::vec<float, 3>; Source = char [14]]' /usr/local/include/boost/lexical_cast.hpp:41:60: required from 'Target boost::lexical_cast(const Source&) [with Target = boost::qvm::vec<float, 3>; Source = char [14]]' /home/kique/Documents/Bitflow2x/source/main.cpp:83:72: required from here /usr/local/include/boost/lexical_cast/detail/converter_lexical.hpp:243:13: error: 'value' is not a member of 'boost::has_right_shift<std::basic_istream<wchar_t>, boost::qvm::vec<float, 3>, boost::detail::has_right_shift_impl::dont_care>' BOOST_STATIC_ASSERT_MSG((result_t::value || boost::has_right_shift<std::basic_istream<wchar_t>, T >::value), ^ ninja: build stopped: subcommand failed.

2 1

[release] Boost 1.62.0 Release Candidate 1
by Rene Rivera 28 Sep '16

28 Sep '16

The release candidates for the 1.62.0 release are now available at: https://sourceforge.net/projects/boost/files/boost/1.62.0.rc.1/boost_1_62_0… https://sourceforge.net/projects/boost/files/boost/1.62.0.rc.1/boost_1_62_0… https://sourceforge.net/projects/boost/files/boost/1.62.0.rc.1/boost_1_62_0… https://sourceforge.net/projects/boost/files/boost/1.62.0.rc.1/boost_1_62_0… The SHA256 checksums are as follows: b91c2cda8bee73ea613130e19e72c9589e9ef0357c4c5cc5f7523de82cce11f7 boost_1_62_0_rc1.7z 36c96b0f6155c98404091d8ceb48319a28279ca0333fba1ad8611eb90afb2ca0 boost_1_62_0_rc1.tar.bz2 440a59f8bc4023dbe6285c9998b0f7fa288468b889746b1ef00e8b36c559dce1 boost_1_62_0_rc1.tar.gz 084b2e0638bbe0975a9e43e21bc9ceae33ef11377aecab3268a57cf41e405d4e boost_1_62_0_rc1.zip As always, the release managers would appreciate it if you download the candidate of your choice and give building it a try. Please report both success and failure, and anything else that is noteworthy. Thanks, the release managers. -- -- Rene Rivera -- Grafik - Don't Assume Anything -- Robot Dreams - http://robot-dreams.net -- rrivera/acm.org (msn) - grafikrobot/aim,yahoo,skype,efnet,gmail

5 6

[boost][heap] Which heap to use.
by degski 27 Sep '16

27 Sep '16

Hi All, I seem to remember reading about this [the subject of this post] in the docs, but I don't seem to be able to find it [that page] now. What criteria should I use to choose a specific Boost.Heap implementation (skew, fibonacci etc), from the ones provided by the Boost.Heap library? Thanks in advance and have a good day, degski

3 10

newbie !!
by MAURICE Jean 27 Sep '16

27 Sep '16

Hi, This is my second 'account' to this mailing list. In fact I am a freelance who works for a company that works for another company and when I am somewhere I can't have access to the 'elsewhere' outlook. I am an old C++ (and FORTRAN and Visual Foxpro) programmer. But I am new to boost, windows (MFC) and Visual Studio 2010. My challenge is to 'upgrade' a huge app (250 k lines of code) both Windows and Linux from boost 1.3.x (and stingray and .....) to boost 1.50 and win 7 ... Boost 1.50 is the last version our customer can use because of its 'private' version of Debian. I am first dealing with windows. When I compile the solution, I get a lot of errors and I would like you give me the first steps to do. Here is an example about file ...\boost\boost15\boost_1_50_0\boost/mpl/list/aux_/preprocessed/plain/list20.hpp list20.hpp(157): error C2143: syntax error : missing ',' before 'string' list20.hpp(163): error C2974: 'boost::mpl::list19' : invalid template argument for 'T18', type expected list20.hpp(144) : see declaration of 'boost::mpl::list19' list20.hpp(167) : see reference to class template instantiation 'boost::mpl::list20<T0,T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,__formal>' being compiled list20.hpp(164): error C3203: 'list19' : unspecialized class template can't be used as a template argument for template parameter 'Next', expected a real type list20.hpp(164): error C2955: 'boost::mpl::list19' : use of class template requires template argument list list20.hpp(144) : see declaration of 'boost::mpl::list19' list20.hpp(165): error C2955: 'boost::mpl::l_item' : use of class template requires template argument list So if you can explain me what is wrong (I mean I am astonished (?) to find a syntax error and I think I must not modify the file so the error may come from elsewhere ...) TIA Jean

2 3

[fiber] High CPU usage when fiber round robin sheduler is idle
by lin li 26 Sep '16

26 Sep '16

Hi, guys. I have a problem with Boost fiber in 1.62 beta 2. My machine is a 4 core machine with 64bit ubuntu 14.04 installed. In my program, I created 4 kernel threads each of which uses the round robin fiber scheduler. One thread 1, I created one fiber that read data from a socket in a blocking manner. Once it got some data, it writes the data into a blocking fiber channel. For the rest thread kernel threads, I created 5 fibers for each of them. They all read (in a blocking manner) data from the same channel. My problem is when no data is sent to the socket, and the system is idling, I can see very high CPU usage on three cores. I profiled the code, it seems to me that the kernel threads keep calling fiber scheduler to sleep then wake up again. I suspect that the time interval for the function suspend_until() may be too short. If that is the case, then how can I increase it?

2 1

[serialization] Runtime overhead of serialization archives
by georg＠schorsch-tech.de 25 Sep '16

25 Sep '16

Hi all, currently i try to measure the runtime overhead of serialization vs. plain c-style serialization. The goal is to send it from one process to an other process on the same machine. As my statemachines are written with boost::msm, i want to deliver types. For the IPC i used interprocess::message_queue. I wrote a template function for the test and added a trait to plug in the test functions. I tested on the same machine, once with Linux Debian stretch x64 and Win 10 x64 MSVC 2015. What really astonish me is the fact, that the measured times using boost::serilization is so high compared to "c-style: id + data" method. In the c-style method i used a FNV hash of the type name as the ID. All tests were done on a Intel Core i7 2670QM CPU. All results in sec. I sent/received 100000 objects over a message_queue. Boost 1.61.0 Linux x86_64 / gcc 6.1.1 Win 10 x64/ MSVC 2015 Boost XML Send 2.220753 8.255834 Boost XML Receive 3.208353 10.14462 Boost Text Send 2.024946 8.578654 Boost Text Receive 3.207359 10.704126 Boost BinarySend 2.018026 8.363865 Boost Binary Receive 3.17984 11.201501 Cstyle Send 0.13566 0.056814 Cstyle Receive 0.087906 0.058706 Char Send 0.071683 0.013965 Char Receive 0.062119 0.012631 To measure the real overhead of the message passing, i made a test and just sent 100000 plain chars over the "wire". There are two strange things: a) The serilization with boost seems to be about 16 times slower than the plain c-style method, the receive seems to be about 30 times slower. I think i do something wrong..... he tests were compiled on release mode. b) On the same hardware, the Windows implementation is so much slower than the Linux one... about factor 3. But at the c-style method, it turns around.... Linux is slower than Windows. Has anyone an idea whats the issue here? I added the code at the end of this text Best regards Georg // ----------------------------------------------------- // Code // ----------------------------------------------------- #define BOOST_TEST_MODULE first_tests #include <boost/test/unit_test.hpp> #include <boost/interprocess/ipc/message_queue.hpp> // send all data through this #include <boost/timer/timer.hpp> // measure the used time #include <iostream> // for output // STL Archive + Stuff #include <boost/serialization/base_object.hpp> #include <boost/serialization/export.hpp> #include <boost/serialization/shared_ptr.hpp> #include <boost/serialization/unique_ptr.hpp> // include headers that implement a archive in xml format #include <boost/archive/archive_exception.hpp> #include <boost/archive/xml_iarchive.hpp> #include <boost/archive/xml_oarchive.hpp> #include <boost/archive/text_iarchive.hpp> #include <boost/archive/text_oarchive.hpp> #include <boost/archive/binary_iarchive.hpp> #include <boost/archive/binary_oarchive.hpp> #include <boost/iostreams/device/array.hpp> #include <boost/iostreams/device/back_inserter.hpp> #include <boost/iostreams/stream.hpp> #include <memory> #include <stdint.h> #include <typeinfo> #include <vector> using namespace boost::interprocess; static const int test_count = 100000; // send this many structs // the test structure struct ev_test { long a = 1; unsigned long b = 2; }; // ---------------------------------------------------------------------------- // a packet on the wire // ---------------------------------------------------------------------------- using packet = std::vector<char>; //----------------------------------------------------------------------------- // Type carrier and its support // ---------------------------------------------------------------------------- namespace { class carrier_visitor_base; class carrier_base // the base in the queue { public: using ptr = std::unique_ptr<carrier_base>; virtual ~carrier_base() {} virtual void accept(carrier_visitor_base *p_visitor) = 0; template <class Archive> void serialize(Archive &ar, const unsigned int version) { } }; template <typename T> class carrier; class carrier_visitor_base { public: virtual ~carrier_visitor_base() {} virtual void handle(carrier<ev_test> *p_evt) = 0; virtual void handle(carrier<char> *p_evt) = 0; }; template <typename T> class carrier : public carrier_base // the specific carrier { public: explicit carrier() : m_data() {} explicit carrier(const T &data) : m_data(data) {} virtual void accept(carrier_visitor_base *p_visitor) override { p_visitor->handle(this); } T &data() { return m_data; } private: T m_data; }; } // ns anon // ---------------------------------------------------------------------------- // the traits for the chartest // ---------------------------------------------------------------------------- struct char_test { static const char *name() { return "char_test 'c': "; } static size_t msg_size() { return sizeof(char); } static char get_data() { return 'c'; } template <typename T> static packet to_wire(T data) { packet ret; ret.push_back(get_data()); return ret; } static carrier_base::ptr from_wire(const packet &data) { auto p_data = new carrier<char>(); p_data->data() = data[0]; return std::unique_ptr<carrier<char>>(p_data); } }; // ---------------------------------------------------------------------------- // the traits for the boost xml serialization test // ---------------------------------------------------------------------------- // ---------------------------------------------------------------------------- // external serialization function // ---------------------------------------------------------------------------- namespace boost { namespace serialization { // serialization function for ev_test template <class Archive> inline void serialize(Archive &ar, ev_test &t, const unsigned int version) { ar &BOOST_SERIALIZATION_NVP(t.a); ar &BOOST_SERIALIZATION_NVP(t.b); } // serialization function for carrier<T> template <class Archive, typename T> void serialize(Archive &ar, carrier<T> &t, const unsigned int version) { ar &boost::serialization::make_nvp( "carrier_base", boost::serialization::base_object<carrier_base>(t)); // BOOST_SERIALIZATION_BASE_OBJECT_NVP(a); auto &data = t.data(); ar &BOOST_SERIALIZATION_NVP(data); } } } // we must export all carrier BOOST_SERIALIZATION_SHARED_PTR(carrier<ev_test>) BOOST_CLASS_EXPORT(carrier<ev_test>) struct boost_xml_trait { static const char *name() { return "boost_xml_test: ev_test: "; } typedef boost::archive::xml_oarchive oarchive; typedef boost::archive::xml_iarchive iarchive; }; struct boost_text_trait { static const char *name() { return "boost_text_test: ev_test: "; } typedef boost::archive::xml_oarchive oarchive; typedef boost::archive::xml_iarchive iarchive; }; struct boost_binary_trait { static const char *name() { return "boost_binary_test: ev_test: "; } typedef boost::archive::xml_oarchive oarchive; typedef boost::archive::xml_iarchive iarchive; }; template <typename archive_trait> struct boost_test { static const char *name() { return archive_trait::name(); } static size_t msg_size() { return 600; } // throws boost::archive::archive_exception template <typename T> static packet to_wire(T data) { using namespace boost::iostreams; using T1 = typename std::remove_cv<T>::type; using BT = typename std::remove_reference<T1>::type; carrier_base::ptr p_carrier = std::make_unique<carrier<BT>>(data); packet p; { back_insert_device<packet> sink{ p }; stream<back_insert_device<packet>> os{ sink }; typename archive_trait::oarchive oa(os); oa << BOOST_SERIALIZATION_NVP(p_carrier); } return p; } // throws boost::archive::archive_exception static carrier_base::ptr from_wire(const packet &data) { using namespace boost::iostreams; carrier_base::ptr p_carrier; boost::iostreams::array_source source{ data.data(), data.size() }; stream<array_source> is{ source }; typename archive_trait::iarchive ia(is); // this takes the most time ia >> BOOST_SERIALIZATION_NVP(p_carrier); return p_carrier; } }; // ---------------------------------------------------------------------------- // the traits for the cstyle serialization test // ---------------------------------------------------------------------------- // ---------------------------------------------------------------------------- // cstyle serialization with fnv type identifier // ---------------------------------------------------------------------------- struct cstyle_test { static const char *name() { return "cstyle_test: "; } static size_t msg_size() { return 1000; } // FowlerNollVo hash function // https://en.wikipedia.org/wiki/Fowler%E2%80%93Noll%E2%80%93Vo_hash_function struct fnv { const static uint64_t base = 0xcbf29ce484222325; const static uint64_t prime = 0x00000100000001b3; const static uint64_t next(uint64_t current, size_t char_code) { return (current ^ char_code) * prime; } const static uint64_t value(const char *cptr, uint64_t interim = base) { return (*cptr == '\0') ? interim : value(cptr + 1, next(interim, static_cast<size_t>(*cptr))); } }; template <typename T> static packet to_wire(T data) { packet buffer(msg_size()); // to be fair, send the same amount of bytes const uint64_t id = fnv::value(typeid(T).name()); size_t pos = 0; assert(msg_size() >= sizeof(uint64_t) + sizeof(T)); // buffer.resize(buffer.size() + sizeof(uint64_t) + sizeof(T)); std::memcpy(buffer.data() + pos, &id, sizeof(uint64_t)); pos += sizeof(uint64_t); std::memcpy(buffer.data() + pos, &data, sizeof(T)); pos += sizeof(T); return buffer; } static carrier_base::ptr from_wire(const packet &data) { // get the id size_t pos = 0; uint64_t id; std::memcpy(&id, data.data() + pos, sizeof(uint64_t)); pos += sizeof(uint64_t); // create the specific pointer if (id == fnv::value(typeid(ev_test).name())) { assert(data.size() >= sizeof(uint64_t) + sizeof(ev_test)); auto p_evt = new carrier<ev_test>(); std::memcpy(&p_evt->data(), data.data() + pos, sizeof(ev_test)); return carrier_base::ptr(p_evt); } throw std::runtime_error("deserialize error"); } }; template <typename trait> void do_test() { class runtime : public carrier_visitor_base { public: virtual void handle(carrier<ev_test> *p_evt) override { i += p_evt->data().a; } virtual void handle(carrier<char> *p_evt) override { i += p_evt->data(); } int i = 0; }; try { std::cout << "Sending " << trait::name() << test_count << std::endl; // Erase previous message queue message_queue::remove("message_queue"); // Create a message_queue. message_queue mq(create_only // only create , "message_queue" // name , test_count // max message number , trait::msg_size() // max message size ); // send ev_tests boost::timer::auto_cpu_timer t; for (int i = 0; i < test_count; ++i) { auto buffer = trait::to_wire(ev_test()); mq.send(buffer.data(), buffer.size(), 0); } } catch (const interprocess_exception &ex) { message_queue::remove("message_queue"); std::cout << ex.what() << std::endl; BOOST_CHECK(true == false); } runtime rt; try { std::cout << "Receiving " << trait::name() << test_count << std::endl; // Open a message queue. message_queue mq(open_only // only create , "message_queue" // name ); message_queue::size_type recvd_size; packet buffer(trait::msg_size()); unsigned int priority; boost::timer::auto_cpu_timer t; for (int i = 0; i < test_count; ++i) { // receive the raw data mq.receive(buffer.data(), buffer.size(), recvd_size, priority); // deserialize auto p_carrier = trait::from_wire(buffer); // handle it to the protocol p_carrier->accept(&rt); } } catch (const interprocess_exception &ex) { message_queue::remove("message_queue"); std::cout << ex.what() << std::endl; BOOST_CHECK(true == false); } message_queue::remove("message_queue"); std::cout << "RT Counter: " << rt.i << std::endl << std::endl; } BOOST_AUTO_TEST_CASE(carrier_boost_xml_ev_test) { do_test<boost_test<boost_xml_trait>>(); } BOOST_AUTO_TEST_CASE(carrier_boost_text_ev_test) { do_test<boost_test<boost_text_trait>>(); } BOOST_AUTO_TEST_CASE(carrier_boost_binary_ev_test) { do_test<boost_test<boost_binary_trait>>(); } BOOST_AUTO_TEST_CASE(carrier_cstyle_ev_test) { do_test<cstyle_test>(); } BOOST_AUTO_TEST_CASE(carrier_char_test) { do_test<char_test>(); }

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[boost][multiprecision] compile error with gcc 4.8.4
by Rob Conde 24 Sep '16

24 Sep '16

Please see the scenario below...am I doing something wrong or is this a gcc or multiprecision bug? Thanks, Rob Conde given the following code (multiPrecisionTest.cpp): #include <boost/multiprecision/cpp_int.hpp> #include <boost/multiprecision/cpp_bin_float.hpp> typedef boost::multiprecision::int128_t int128_t; typedef boost::multiprecision::cpp_bin_float_quad float128_t; int main() { int128_t intVal; float128_t floatVal(intVal.convert_to<float128_t>()); return 0; } -------------------------------------------------------------------------- g++ -std=c++0x -c multiPrecisionTest.cpp I get the following error: In file included from ./boost/multiprecision/cpp_int.hpp:1936:0, from multiPrecisionTest.cpp:1: ./boost/multiprecision/cpp_int/misc.hpp: In instantiation of ‘typename boost::enable_if_c<(boost::multiprecision::backends::is_trivial_cpp_int<boost::multiprecision::backends::cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && boost::multiprecision::is_signed_number<boost::multiprecision::backends::cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value)>::type boost::multiprecision::backends::eval_convert_to(R*, const boost::multiprecision::backends::cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>&) [with R = boost::multiprecision::number<boost::multiprecision::backends::cpp_bin_float<113u, (boost::multiprecision::backends::digit_base_type)2u, void, short int, -16382, 16383>, (boost::multiprecision::expression_template_option)0u>; unsigned int MinBits1 = 128u; unsigned int MaxBits1 = 128u; boost::multiprecision::cpp_integer_type SignType1 = (boost::multiprecision::cpp_integer_type)1u; boost::multiprecision::cpp_int_check_type Checked1 = (boost::multiprecision::cpp_int_check_type)0u; Allocator1 = void; typename boost::enable_if_c<(boost::multiprecision::backends::is_trivial_cpp_int<boost::multiprecision::backends::cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value && boost::multiprecision::is_signed_number<boost::multiprecision::backends::cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value)>::type = void]’: ./boost/multiprecision/number.hpp:585:40: required from ‘void boost::multiprecision::number<Backend, ExpressionTemplates>::convert_to_imp(T*) const [with T = boost::multiprecision::number<boost::multiprecision::backends::cpp_bin_float<113u, (boost::multiprecision::backends::digit_base_type)2u, void, short int, -16382, 16383>, (boost::multiprecision::expression_template_option)0u>; Backend = boost::multiprecision::backends::cpp_int_backend<128u, 128u, (boost::multiprecision::cpp_integer_type)1u, (boost::multiprecision::cpp_int_check_type)0u, void>; boost::multiprecision::expression_template_option ExpressionTemplates = (boost::multiprecision::expression_template_option)0u]’ ./boost/multiprecision/number.hpp:601:29: required from ‘T boost::multiprecision::number<Backend, ExpressionTemplates>::convert_to() const [with T = boost::multiprecision::number<boost::multiprecision::backends::cpp_bin_float<113u, (boost::multiprecision::backends::digit_base_type)2u, void, short int, -16382, 16383>, (boost::multiprecision::expression_template_option)0u>; Backend = boost::multiprecision::backends::cpp_int_backend<128u, 128u, (boost::multiprecision::cpp_integer_type)1u, (boost::multiprecision::cpp_int_check_type)0u, void>; boost::multiprecision::expression_template_option ExpressionTemplates = (boost::multiprecision::expression_template_option)0u]’ multiPrecisionTest.cpp:10:54: required from here ./boost/multiprecision/cpp_int/misc.hpp:533:138: error: no type named ‘type’ in ‘struct boost::common_type<boost::multiprecision::number<boost::multiprecision::backends::cpp_bin_float<113u, (boost::multiprecision::backends::digit_base_type)2u, void, short int, -16382, 16383>, (boost::multiprecision::expression_template_option)0u>, __int128 unsigned>’ typedef typename common_type<R, typename cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>::local_limb_type>::type common_type; ^

2 17

[Ranges] Range adaptors and range lifetimes
by Álex Puchades 23 Sep '16

23 Sep '16

Hi boost users! I'm having some lifetime issues with range adaptors. It seems boost adaptors (at least, transformed_range) only store iterators from the original range, letting it go out of scope [1]. Unfortunately, this makes boost adaptors not compatible with ranges that return iterators that are only valid while the original range is in scope (ie: any iterator that references the original range). This type of ranges are useful to avoid the fat-iterator problem, as seen here [2]. Is there any reason for the current behaviour? Should I file a bug or has it been discussed before? Thanks for your help [1] https://github.com/boostorg/range/blob/develop/include/boost/range/adaptor/… [2] http://ericniebler.com/2013/11/07/input-iterators-vs-input-ranges/ -- Álex Puchades

1 0

boost coroutine 1.62 b2 deprecation typo
by Jason Mancini 23 Sep '16

23 Sep '16

Just noticing that there's probably a typo in one of the deprecation warnings, as it wants both defined: BOOST_COROUTINE_NO_DEPRECATION_WARNING BOOST_COROUTINES_NO_DEPRECATION_WARNING Jason

1 0

[Parallel BGL] Poor scalability of dijkstra and delta stepping parallel graph algorithms
by Alexander Frolov 21 Sep '16

21 Sep '16

Hi! I am evaluating scalability on various graph algorithms and found that base parallel SSSP algorithms in PBGL does not scale well in my cases. The plots for rmat (scale=20 and 22) are attached. The source code for the benchmark are attached as well. The main issue that makes me think that I'm doing smth wrong is that execution time of delta stepping algorithm is _increasing_ with node number. I tried to check the code but has not found anything suspicious. Can anybody help me with this issue? Best, Alexander

1 0