June 2007 - Boost-users - lists.preview.boost.org

Re : Problem with boost serialization: shared_ptr
by Michel Pineau 15 Jun '07

15 Jun '07

Hello, I'm compiling and running the test program on LINUX, not on windows. If you look at the shared_ptr members, they are not properly set after loading. The test program doesn't crash but our application do crash when going through the shared_ptr. Michel :) ----- Message initial ---- De : Robert Ramey <ramey(a)rrsd.com> À : boost-users(a)lists.boost.org Envoyé le : jeudi 14 juin 2007, 18 h 43 min 51 s Objet : Re: [Boost-users] Problem with boost serialization: shared_ptr I looked over your code at it looks like it shoud be OK to me. I Tried to compile it with my VC 71 system using boost 1.3 (cvs HEAD) and I got an error at the following line: class ABC : public IA, public IB, public IC \BoostHead\libs\serialization\test\test_zmisc.cpp(85) : fatal error C1001: INTERNAL COMPILER ERROR (compiler file 'msc1.cpp', line 2701) Please choose the Technical Support command on the Visual C++ Help menu, or open the Technical Support help file for more information which looks to me to be an artifact of the test system. I'll look some more if I can get the chance. Robert Ramey "Michel Pineau" <mpineau1963(a)yahoo.com> wrote in message news:478215.90532.qm@web53310.mail.re2.yahoo.com... Hello, I'm trying to serialize many boost::shared_ptr to the same object but through different base classes. When I look at the boost::shared_ptr for the base classes they are not properly set. I created a simple example that show my problem. The test program output is: _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users Changez de tête et de tenue tous les jours si vous le voulez ! Volez la vedette sur Yahoo! Québec Avatars http://cf.avatars.yahoo.com/

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Unable to build Boost.Serialization library from boost 1.34 with vacpp.
by Joe Davidson 15 Jun '07

15 Jun '07

We are using IBM's XLC compiler (version 8.0) on a LInux/PPC system. I have been able to compile boost 1.33.1 with XLC without any showstopping problems. (The Boost.Wave library has some minor issues I think) Attempting to build boost 1.34.0 with the same version of xlc results in multiple compilation failures. I'm providing one of the build errors in hopes that I can start getting some pointers as to where to look. I can dig up more compilation errors if needed. I did have to patch the vacpp.jam file to override the default location of the xlc compiler. There should be a better way to set the compiler location right? Suggestions? Thanks, -- Joe $ cd $HOME/boost_1_34_0 $ /configure --with-libraries=serialization --with-toolset=vacpp $ make ./tools/jam/src/bin.unknownppc/bjam --user-config=user-config.jam--with-serialization ...patience... ...found 1178 targets... ...updating 48 targets... vacpp.compile.c++ bin.v2 /libs/serialization/build/vacpp/release/link-static/threading-multi/binary_wiarchive.o "./boost/archive/impl/basic_binary_iprimitive.ipp", line 180.9: 1540-0216 (S) An expression of type "std::basic_streambuf<wchar_t,std::char_traits<wchar_t> >" cannot be converted to type "boost::archive::detail::input_streambuf_access<wchar_t,std::char_traits<wchar_t> > &". "./boost/archive/impl/basic_binary_iprimitive.ipp", line 177.1: 1540-0700 (I) The previous message was produced while processing "boost::archive::basic_binary_iprimitive<boost::archive::binary_wiarchive,wchar_t,std::char_traits<wchar_t> >::~basic_binary_iprimitive()". "./boost/archive/binary_iarchive_impl.hpp", line 70.5: 1540-0700 (I) The previous message was produced while processing "boost::archive::binary_iarchive_impl<boost::archive::binary_wiarchive,wchar_t,std::char_traits<wchar_t> >::binary_iarchive_impl(std::basic_istream<wchar_t,std::char_traits<wchar_t> > &, unsigned int)". "./boost/archive/binary_iarchive_impl.hpp", line 28.7: 1540-0700 (I) The previous message was produced while processing "class boost::archive::binary_iarchive_impl<boost::archive::binary_wiarchive,wchar_t,std::char_traits<wchar_t> >". "./boost/archive/binary_wiarchive.hpp", line 33.7: 1540-0700 (I) The previous message was produced while processing "class boost::archive::binary_wiarchive". /usr/bin/xlC_r -c -DBOOST_ALL_NO_LIB=1 -DNDEBUG -O3 -qstrict -qinline -qeh -qrtti -I"." -o "bin.v2/libs/serialization/build/vacpp/release/link-static/threading-multi/binary_wiarchive.o" "libs/serialization/src/binary_wiarchive.cpp" ...failed vacpp.compile.c++ bin.v2 /libs/serialization/build/vacpp/release/link-static/threading-multi/binary_wiarchive.o...

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Re : Problem with boost serialization: shared_ptr
by Michel Pineau 15 Jun '07

15 Jun '07

Hello, I think I have found something, but I would like you to confirm, in the get_helper (boost/serialization/shared_ptr.hpp), if the variable sph (See code: shared_ptr<void> sph;) represent the most derived class, and if we have mulitple inheritance, then we cannot cast (See code: return * static_cast<H *>(sph.get());) a void * to a base class. It has to be cast to the derived class first and then to the base class. What do you think? template<class Archive, class H> H & get_helper(Archive & ar){ extended_type_info * eti = type_info_implementation<H>::type::get_instance(); shared_ptr<void> sph; ar.lookup_helper(eti, sph); if(NULL == sph.get()){ sph = shared_ptr<H>(new H); ar.insert_helper(eti, sph); } return * static_cast<H *>(sph.get()); } Thanks again, Michel :) ----- Message initial ---- De : Robert Ramey <ramey(a)rrsd.com> À : boost-users(a)lists.boost.org Envoyé le : jeudi 14 juin 2007, 18 h 43 min 51 s Objet : Re: [Boost-users] Problem with boost serialization: shared_ptr I looked over your code at it looks like it shoud be OK to me. I Tried to compile it with my VC 71 system using boost 1.3 (cvs HEAD) and I got an error at the following line: class ABC : public IA, public IB, public IC \BoostHead\libs\serialization\test\test_zmisc.cpp(85) : fatal error C1001: INTERNAL COMPILER ERROR (compiler file 'msc1.cpp', line 2701) Please choose the Technical Support command on the Visual C++ Help menu, or open the Technical Support help file for more information which looks to me to be an artifact of the test system. I'll look some more if I can get the chance. Robert Ramey "Michel Pineau" <mpineau1963(a)yahoo.com> wrote in message news:478215.90532.qm@web53310.mail.re2.yahoo.com... Hello, I'm trying to serialize many boost::shared_ptr to the same object but through different base classes. When I look at the boost::shared_ptr for the base classes they are not properly set. I created a simple example that show my problem. The test program output is: _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users Faites des appels de PC à PC dans le monde entier ! Essayez le nouveau Yahoo! Québec Messenger avec Voix. http://cf.messenger.yahoo.com/

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[serialization] private default constructor
by Ruediger Berlich 15 Jun '07

15 Jun '07

Hi there, I have a few classes that only have private default constructors. As boost::serialization::access is declared as friend of these classes, this should not affect serialization, I believe. Is this correct ? Thanks and Best Regards, Ruediger Berlich

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Re : Problem with boost serialization: shared_ptr
by Michel Pineau 15 Jun '07

15 Jun '07

Hello, In my example if you removed the boost::test_suite and replace it with a simple main function, it will compile with VC and you will be able to see the problem. Thank again, Michel :) ----- Message initial ---- De : Robert Ramey <ramey(a)rrsd.com> À : boost-users(a)lists.boost.org Envoyé le : jeudi 14 juin 2007, 18 h 43 min 51 s Objet : Re: [Boost-users] Problem with boost serialization: shared_ptr I looked over your code at it looks like it shoud be OK to me. I Tried to compile it with my VC 71 system using boost 1.3 (cvs HEAD) and I got an error at the following line: class ABC : public IA, public IB, public IC \BoostHead\libs\serialization\test\test_zmisc.cpp(85) : fatal error C1001: INTERNAL COMPILER ERROR (compiler file 'msc1.cpp', line 2701) Please choose the Technical Support command on the Visual C++ Help menu, or open the Technical Support help file for more information which looks to me to be an artifact of the test system. I'll look some more if I can get the chance. Robert Ramey "Michel Pineau" <mpineau1963(a)yahoo.com> wrote in message news:478215.90532.qm@web53310.mail.re2.yahoo.com... Hello, I'm trying to serialize many boost::shared_ptr to the same object but through different base classes. When I look at the boost::shared_ptr for the base classes they are not properly set. I created a simple example that show my problem. The test program output is: _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users Découvrez ce qui fait jaser les gens ! Visitez les groupes de l'heure sur Yahoo! Québec Groupes. http://cf.groups.yahoo.com/

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Re: [Boost-users] [Serialization] BOOST_CLASS_EXPORT_GUID() destroyingnamespace
by Pfligersdorffer, Christian 15 Jun '07

15 Jun '07

boost-users-bounces(a)lists.boost.org wrote: > Hi, > > When i put the script BOOST_CLASS_EXPORT_GUID() into my code directly > after the definition of my base class and derived classes, my > namespace seems to be broken. The classes are defined in my namespace > "water". When i put the script into the code, it fails to find > boost::bind in the source file! THe compiler searches for bind in the > namespace "water::boost". But without the script it compiles fine! > Someone got a clue whats wrong? Kind Regards > Manuel Jung That's because you need to close any namespace before invoking the macro. Regards, -- DI Christian Pfligersdorffer Software Engineering EOS GmbH

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[regex] undefined references to boost::reg_expression
by Ken Klose 15 Jun '07

15 Jun '07

I've been able to build this program without problem on one RHEL4 machine with boost 1.33.1. But on another machine it gives a ton of errors (see below). Any thoughts would be greatly appreciated. Thanks, Ken #include <iostream> #include <string> #include "boost/regex.hpp" using namespace boost; using namespace std; int main() { string _stream("1000_===_1181763561847_===_false"); boost::sregex_token_iterator _tokens, _end; _tokens = sregex_token_iterator(_stream.begin(), _stream.end(), regex("_===_", boost::regex::literal), -1); while(_tokens != _end) { cout << *_tokens++ << endl; } } make -f sample.mak all make[1]: Entering directory `/users/sd/jbfsa/bolanosr/dci_test/DciSample' g++ -Wall -g -D__OS_LINUX__ -pthread -I../DciApi/include -I../DciApi -I../boost_release/boost -c -o DciSample.o DciSample.cpp g++ DciSample.o -L../DciApi -lDciApi -L../boost_release/libs -lboost_date_time-gcc-mt -lboost_filesystem-gcc-mt -lboost_iostreams-gcc-mt -lboost_program_options-gcc-mt -lboost_regex-gcc-mt -lboost_serialization-gcc-mt -lboost_signals-gcc-mt -lboost_thread-gcc-mt -lboost_wave-gcc-mt -o DciSample g++ -Wall -g -D__OS_LINUX__ -pthread -I../DciApi/include -I../DciApi -I../boost_release/boost -c -o TestBoost.o TestBoost.cpp g++ TestBoost.o -L../DciApi -lDciApi -L../boost_release/libs -lboost_date_time-gcc-mt -lboost_filesystem-gcc-mt -lboost_iostreams-gcc-mt -lboost_program_options-gcc-mt -lboost_regex-gcc-mt -lboost_serialization-gcc-mt -lboost_signals-gcc-mt -lboost_thread-gcc-mt -lboost_wave-gcc-mt -o TestBoost TestBoost.o(.gnu.linkonce.t._ZN5boost11basic_regexIcNS_12regex_traitsIcEESaIcEEC1EPKcjRKS3_+0x13): In function `boost::basic_regex<char, boost::regex_traits<char>, std::allocator<char> >::basic_regex(char const*, unsigned int, std::allocator<char> const&)': /usr/include/boost/regex/v4/basic_regex.hpp:340: undefined reference to `boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> >::reg_expression(char const*, unsigned int, std::allocator<char> const&)' TestBoost.o(.gnu.linkonce.t._ZN5boost11basic_regexIcNS_12regex_traitsIcEESaIcEED1Ev+0xd): In function `boost::basic_regex<char, boost::regex_traits<char>, std::allocator<char> >::~basic_regex()': /usr/include/boost/regex/v4/basic_regex.hpp:347: undefined reference to `boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> >::~reg_expression()' TestBoost.o(.gnu.linkonce.t._ZN5boost9re_detail12perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcSsEESaINS_9sub_matchIS6_EEENS_12regex_traitsIcEESaIcEEC1ES6_S6_RNS_13match_resultsIS6_S9_EERKNS_14reg_expressionIcSB_SC_EENS_15regex_constants12_match_flagsE+0x7e): In function `boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, boost::regex_traits<char>, std::allocator<char> >::perl_matcher(__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, __gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, boost::match_results<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > > >&, boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> > const&, boost::regex_constants::_match_flags)': /usr/include/boost/regex/v4/perl_matcher_common.hpp:42: undefined reference to `boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> >::get_traits() const' TestBoost.o(.gnu.linkonce.t._ZN5boost9re_detail12perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcSsEESaINS_9sub_matchIS6_EEENS_12regex_traitsIcEESaIcEEC1ES6_S6_RNS_13match_resultsIS6_S9_EERKNS_14reg_expressionIcSB_SC_EENS_15regex_constants12_match_flagsE+0xb7):/usr/include/boost/regex/v4/perl_matcher_common.hpp:45: undefined reference to `boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> >::empty() const' TestBoost.o(.gnu.linkonce.t._ZN5boost9re_detail12perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcSsEESaINS_9sub_matchIS6_EEENS_12regex_traitsIcEESaIcEE24estimate_max_state_countEPSt26random_access_iterator_tag+0x30): In function `boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, boost::regex_traits<char>, std::allocator<char> >::estimate_max_state_count(std::random_access_iterator_tag*)': /usr/include/boost/regex/v4/perl_matcher_common.hpp:79: undefined reference to `boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> >::size() const' TestBoost.o(.gnu.linkonce.t._ZN5boost9re_detail12perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcSsEESaINS_9sub_matchIS6_EEENS_12regex_traitsIcEESaIcEE8find_impEv+0xc6): In function `boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::allocator<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, boost::regex_traits<char>, std::allocator<char> >::find_imp()': /usr/include/boost/regex/v4/perl_matcher_common.hpp:201: undefined reference to `boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> >::mark_count() const' TestBoost.o(.gnu.linkonce.t._ZN5boost9re_detail12perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcSsEESaINS_9sub_matchIS6_EEENS_12regex_traitsIcEESaIcEE8find_impEv+0x206):/usr/include/boost/regex/v4/perl_matcher_common.hpp:219: undefined reference to `boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> >::mark_count() const' TestBoost.o(.gnu.linkonce.t._ZN5boost9re_detail12perl_matcherIN9__gnu_cxx17__normal_iteratorIPKcSsEESaINS_9sub_matchIS6_EEENS_12regex_traitsIcEESaIcEE8find_impEv+0x294):/usr/include/boost/regex/v4/perl_matcher_common.hpp:225: undefined reference to `boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> >::mark_count() const' TestBoost.o(.gnu.linkonce.t._ZN5boost14c_regex_traitsIcE8is_classEcj+0x14): In function `boost::c_regex_traits<char>::is_class(char, unsigned int)': /usr/include/boost/regex/v4/regex_traits.hpp:219: undefined reference to `boost::re_detail::c_traits_base::class_map' TestBoost.o(.gnu.linkonce.t._ZN5boost14c_regex_traitsIcE9translateEcb+0x1f): In function `boost::c_regex_traits<char>::translate(char, bool)': /usr/include/boost/regex/v4/regex_traits.hpp:201: undefined reference to `boost::re_detail::c_traits_base::lower_case_map' TestBoost.o(.gnu.linkonce.t._ZN5boost9re_detail8access_tIcNS_12regex_traitsIcEESaIcEE5firstERKNS_14reg_expressionIcS3_S4_EE+0xd): In function `boost::re_detail::access_t<char, boost::regex_traits<char>, std::allocator<char> >::first(boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> > const&)': /usr/include/boost/regex/v4/perl_matcher.hpp:181: undefined reference to `boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> >::first(boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> > const&)' TestBoost.o(.gnu.linkonce.t._ZN5boost9re_detail8access_tIcNS_12regex_traitsIcEESaIcEE12restart_typeERKNS_14reg_expressionIcS3_S4_EE+0xd): In function `boost::re_detail::access_t<char, boost::regex_traits<char>, std::allocator<char> >::restart_type(boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> > const&)': /usr/include/boost/regex/v4/perl_matcher.hpp:179: undefined reference to `boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> >::restart_type(boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> > const&)' TestBoost.o(.gnu.linkonce.t._ZN5boost9re_detail8access_tIcNS_12regex_traitsIcEESaIcEE7get_mapERKNS_14reg_expressionIcS3_S4_EE+0xd): In function `boost::re_detail::access_t<char, boost::regex_traits<char>, std::allocator<char> >::get_map(boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> > const&)': /usr/include/boost/regex/v4/perl_matcher.hpp:183: undefined reference to `boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> >::get_map(boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> > const&)' TestBoost.o(.gnu.linkonce.t._ZN5boost9re_detail8access_tIcNS_12regex_traitsIcEESaIcEE9can_startEcPKhh+0x24): In function `boost::re_detail::access_t<char, boost::regex_traits<char>, std::allocator<char> >::can_start(char, unsigned char const*, unsigned char)': /usr/include/boost/regex/v4/perl_matcher.hpp:190: undefined reference to `boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> >::can_start(char, unsigned char const*, unsigned char, boost::re_detail::_narrow_type const&)' TestBoost.o(.gnu.linkonce.t._ZN5boost9re_detail8access_tIcNS_12regex_traitsIcEESaIcEE7get_kmpERKNS_14reg_expressionIcS3_S4_EE+0xd): In function `boost::re_detail::access_t<char, boost::regex_traits<char>, std::allocator<char> >::get_kmp(boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> > const&)': /usr/include/boost/regex/v4/perl_matcher.hpp:187: undefined reference to `boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> >::get_kmp(boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> > const&)' TestBoost.o(.gnu.linkonce.t._ZN5boost9re_detail11raise_errorINS_12regex_traitsIcEEEEvRKT_j+0x15): In function `void boost::re_detail::raise_error<boost::regex_traits<char> >(boost::regex_traits<char> const&, unsigned int)': /usr/include/boost/regex/config.hpp:439: undefined reference to `boost::re_detail::c_traits_base::error_string(unsigned int)' TestBoost.o(.gnu.linkonce.t._ZN5boost9re_detail11raise_errorINS_12regex_traitsIcEEEEvRKT_j+0x21):/usr/include/boost/regex/config.hpp:439: undefined reference to `boost::re_detail::raise_regex_exception(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)' TestBoost.o(.gnu.linkonce.t._ZN5boost9re_detail16re_is_set_memberIN9__gnu_cxx17__normal_iteratorIPKcSsEEcNS_12regex_traitsIcEESaIcEEET_SA_SA_PKNS0_11re_set_longERKNS_14reg_expressionIT0_T1_T2_EE+0x61): In function `__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > > boost::re_detail::re_is_set_member<__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, char, boost::regex_traits<char>, std::allocator<char> >(__gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, __gnu_cxx::__normal_iterator<char const*, std::basic_string<char, std::char_traits<char>, std::allocator<char> > >, boost::re_detail::re_set_long const*, boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> > const&)': /usr/include/boost/regex/v4/perl_matcher.hpp:74: undefined reference to `boost::reg_expression<char, boost::regex_traits<char>, std::allocator<char> >::get_traits() const' TestBoost.o(.gnu.linkonce.t._ZN5boost9re_detail16re_is_set_memberIN9__gnu_cxx17__normal_iteratorIPKcSsEEcNS_12regex_traitsIcEESaIcEEET_SA_SA_PKNS0_11re_set_longERKNS_14reg_expressionIT0_T1_T2_EE+0x2e8):/usr/include/boost/regex/v4/perl_matcher.hpp:126: undefined reference to `boost::c_regex_traits<char>::transform(std::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)' TestBoost.o(.gnu.linkonce.t._ZN5boost9re_detail16re_is_set_memberIN9__gnu_cxx17__normal_iteratorIPKcSsEEcNS_12regex_traitsIcEESaIcEEET_SA_SA_PKNS0_11re_set_longERKNS_14reg_expressionIT0_T1_T2_EE+0x3e0):/usr/include/boost/regex/v4/perl_matcher.hpp:151: undefined reference to `boost::c_regex_traits<char>::transform_primary(std::basic_string<char, std::char_traits<char>, std::allocator<char> >&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)' collect2: ld returned 1 exit status make[1]: *** [TestBoost] Error 1

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[Function][bind]Using function to store arbitrary class and arbitrary function
by Hughes, James 15 Jun '07

15 Jun '07

Hello all, I have a quick question that I hope some of the experts on Function and Bind can answer. I'll give a quick précis of what I would like to do. We have an event system in our code. I would like to set this up so that any particular event can be 'attached' to arbitrary classes and functions in those classes. For example, a "Print" Event may need to call an arbitrary function in an arbitrary class (or a number of these). Therefore the event server needs to have a list of all these class/function pairs for each event type. I am pretty sure I can achieve that with a combination of boost::function and boost::bind. I see how I can use function if I know what the class type is..I would need to store the function and a this pointer in to the event server, but the this pointer would need to be to a specific type - that specified in the boost::function defn. Is there any way to make the this pointer of an arbitrary type such that the function call can be made to any arbitrary function in any arbitrary class? Sorry, I don't have a code snippet to help explain - that's what I'm trying to figure out!! There may well be better ways of doing what we need - those thoughts also gratefully received (nb. Working in a multithreaded environment, so boost:signals may not be appropriate) James This message (including any attachments) contains confidential and/or proprietary information intended only for the addressee. Any unauthorized disclosure, copying, distribution or reliance on the contents of this information is strictly prohibited and may constitute a violation of law. If you are not the intended recipient, please notify the sender immediately by responding to this e-mail, and delete the message from your system. If you have any questions about this e-mail please notify the sender immediately.

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multi_index_container and hash_key lookup with boost boost-1.33.1
by Andrej van der Zee 15 Jun '07

15 Jun '07

Hi, I have a problem with a hash-index to a member of type std::vector<std::strings>. With boost 1.34 it compiles and runs find, but it fails to compile with 1.33! Unfortunately I do not have the luxury to change boost-version. Is there any way around this? I defined my multi_index_container like this: typedef std::vector<std::string> keys_type; struct entry_type { keys_type keys; bool operator<(const entry_type& e) const { ... } }; typedef boost::multi_index::multi_index_container< entry_type, mi::indexed_by< mi::hashed_unique< mi::tag<hash_index_tag>, mi::member<entry_type, keys_type, &entry_type::keys> >, mi::ordered_non_unique< mi::tag<pred_index_tag>, mi::identity<entry_type> > > > mi_entries_type; And get the following compile-error (see the bottom): /usr/bin/g++ -m64 -pipe -Wall -fPIC -O3 -DNDEBUG -I../framework -I/sitestat/src/nightly/2007-06-14/branches/rel-6-00/src/build/../../src/cgi -I/sitestat/src/nightly/2007-06-14/branches/rel-6-00/src/build/../../src/zip_utils -DBOOST_SP_USE_QUICK_ALLOCATOR -DBOOST_DISABLE_THREADS -m64 -pipe -Wall -fPIC -O3 -DNDEBUG -c refper_key.cpp -o release/refper_key.o refper_key.cpp: In member function virtual repgen::operator_base::error_code repgen::refper_key::do_pre_eval(): refper_key.cpp:391: warning: unused variable cols /usr/include/boost/functional/hash/hash.hpp: In static member function static size_t boost::hash_detail::call_hash<T>::call(const T&) [with T = std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >]: /usr/include/boost/functional/hash/hash.hpp:315: instantiated from size_t boost::hash<T>::operator()(const T&) const [with T = std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >] /usr/include/boost/multi_index/hashed_index.hpp:372: instantiated from boost::multi_index::detail::hashed_index_iterator<boost::multi_index::detail::hashed_index_node<typename SuperMeta::type::node_type>, boost::multi_index::detail::bucket_array<typename SuperMeta::type::final_allocator_type> > boost::multi_index::detail::hashed_index<KeyFromValue, Hash, Pred, SuperMeta, TagList, Category>::find(const CompatibleKey&, const CompatibleHash&, const CompatiblePred&) const [with CompatibleKey = std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >, CompatibleHash = boost::hash<std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, CompatiblePred = std::equal_to<std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, KeyFromValue = boost::multi_index::member<repgen::refper_types::entry_type, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >, &repgen::refper_types::entry_type::keys>, Hash = boost::hash<std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, Pred = std::equal_to<std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, SuperMeta = boost::multi_index::detail::nth_layer<1, repgen::refper_types::entry_type, boost::multi_index::indexed_by<boost::multi_index::hashed_unique<boost::multi_index::tag<repgen::refper_types::hash_index_tag, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::multi_index::member<repgen::refper_types::entry_type, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >, &repgen::refper_types::entry_type::keys>, mpl_::na, mpl_::na>, boost::multi_index::ordered_non_unique<boost::multi_index::tag<repgen::refper_types::pred_index_tag, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::multi_index::identity<repgen::refper_types::entry_type>, mpl_::na>, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, std::allocator<repgen::refper_types::entry_type> >, TagList = boost::mpl::v_item<repgen::refper_types::hash_index_tag, boost::mpl::vector0<mpl_::na>, 0>, Category = boost::multi_index::detail::hashed_unique_tag] /usr/include/boost/multi_index/hashed_index.hpp:362: instantiated from boost::multi_index::detail::hashed_index_iterator<boost::multi_index::detail::hashed_index_node<typename SuperMeta::type::node_type>, boost::multi_index::detail::bucket_array<typename SuperMeta::type::final_allocator_type> > boost::multi_index::detail::hashed_index<KeyFromValue, Hash, Pred, SuperMeta, TagList, Category>::find(const CompatibleKey&) const [with CompatibleKey = repgen::refper_types::keys_type, KeyFromValue = boost::multi_index::member<repgen::refper_types::entry_type, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >, &repgen::refper_types::entry_type::keys>, Hash = boost::hash<std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, Pred = std::equal_to<std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > > >, SuperMeta = boost::multi_index::detail::nth_layer<1, repgen::refper_types::entry_type, boost::multi_index::indexed_by<boost::multi_index::hashed_unique<boost::multi_index::tag<repgen::refper_types::hash_index_tag, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::multi_index::member<repgen::refper_types::entry_type, std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >, &repgen::refper_types::entry_type::keys>, mpl_::na, mpl_::na>, boost::multi_index::ordered_non_unique<boost::multi_index::tag<repgen::refper_types::pred_index_tag, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, boost::multi_index::identity<repgen::refper_types::entry_type>, mpl_::na>, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na, mpl_::na>, std::allocator<repgen::refper_types::entry_type> >, TagList = boost::mpl::v_item<repgen::refper_types::hash_index_tag, boost::mpl::vector0<mpl_::na>, 0>, Category = boost::multi_index::detail::hashed_unique_tag] refper_key.cpp:272: instantiated from here /usr/include/boost/functional/hash/hash.hpp:132: error: no matching function for call to hash_value(const std::vector<std::basic_string<char, std::char_traits<char>, std::allocator<char> >, std::allocator<std::basic_string<char, std::char_traits<char>, std::allocator<char> > > >&) /usr/include/boost/functional/hash/hash.hpp:89: note: candidates are: size_t boost::hash_value(int) /usr/include/boost/functional/hash/hash.hpp:94: note: size_t boost::hash_value(unsigned int) /usr/include/boost/functional/hash/hash.hpp:99: note: size_t boost::hash_value(long int) /usr/include/boost/functional/hash/hash.hpp:104: note: size_t boost::hash_value(long unsigned int) /usr/include/boost/functional/hash/hash.hpp:293: note: size_t boost::hash_value(float) /usr/include/boost/functional/hash/hash.hpp:298: note: size_t boost::hash_value(double) /usr/include/boost/functional/hash/hash.hpp:303: note: size_t boost::hash_value(long double) Thanks! Andrej ___________________________________________________________ Yahoo! Mail is the world's favourite email. Don't settle for less, sign up for your free account today http://uk.rd.yahoo.com/evt=44106/*http://uk.docs.yahoo.com/mail/winter07.ht…

2 2

[date time] performant?
by John McMahon 14 Jun '07

14 Jun '07

Hi, I've been browsing the online documentation for the date time library, which is a model of good documentation (unlike boost::test, for example) and it looks pretty well designed. I wanted to know if there have been any discussions or benchmarks of how efficient it is? Do people have any general comments on this? Some background: I've been looking at quantlib (www.quantlib.org) - a c++ library which performs financial valuation calculations, and whilst they use boost, they have chosen to write their own Date and Calendar classes. Dates, holiday calendars, period calculations, etc, are commonly used in finanial calculations and a performant library generally would add great value. thanks in advance, John McMahon

2 1

Problem with boost serialization: shared_ptr
by Michel Pineau 14 Jun '07

14 Jun '07

Hello, I'm trying to serialize many boost::shared_ptr to the same object but through different base classes. When I look at the boost::shared_ptr for the base classes they are not properly set. I created a simple example that show my problem. The test program output is: Running 1 test case... In function ABC In function A In function B In function C In function ABC In function A In function A In function A I'm using boost 1.33.1 on Linux with gcc 3.4.5 (Red Hat 3.4.5-2). Thanks for your help, Michel :) #include <sstream> #include <iostream> #include <boost/shared_ptr.hpp> #include <boost/archive/text_oarchive.hpp> #include <boost/archive/text_iarchive.hpp> #include <boost/serialization/serialization.hpp> #include <boost/serialization/export.hpp> #include <boost/serialization/shared_ptr.hpp> #include <boost/test/unit_test.hpp> #include <boost/test/included/unit_test_framework.hpp> //---------------------------------------------------------------------------- // class IA { public: IA() : a(1) { } virtual ~IA() { } virtual void fctA() = 0; protected: int a; private: friend class boost::serialization::access; template<class Archive> void serialize(Archive& ar, const unsigned int i_version) { ar & BOOST_SERIALIZATION_NVP(a); } }; BOOST_IS_ABSTRACT(IA) //---------------------------------------------------------------------------- // class IB { public: IB() : b(2) { } virtual ~IB() { } virtual void fctB() = 0; protected: int b; private: friend class boost::serialization::access; template<class Archive> void serialize(Archive& ar, const unsigned int i_version) { ar & BOOST_SERIALIZATION_NVP(b); } }; BOOST_IS_ABSTRACT(IB) //---------------------------------------------------------------------------- // class IC { public: IC() : c(3) { } virtual ~IC() { } virtual void fctC() = 0; protected: int c; private: friend class boost::serialization::access; template<class Archive> void serialize(Archive& ar, const unsigned int i_version) { ar & BOOST_SERIALIZATION_NVP(c); } }; BOOST_IS_ABSTRACT(IC) //---------------------------------------------------------------------------- // class ABC : public IA, public IB, public IC { public: ABC() : abc(4) { } virtual void fctABC() { std::cout << "In function ABC" << std::endl; } virtual void fctA() { std::cout << "In function A" << std::endl; } virtual void fctB() { std::cout << "In function B" << std::endl; } virtual void fctC() { std::cout << "In function C" << std::endl; } protected: int abc; private: friend class boost::serialization::access; template<class Archive> void serialize(Archive& ar, const unsigned int i_version) { ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(IA); ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(IB); ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(IC); ar & BOOST_SERIALIZATION_NVP(abc); } }; BOOST_CLASS_EXPORT(ABC) BOOST_SERIALIZATION_SHARED_PTR(ABC) BOOST_SERIALIZATION_SHARED_PTR(IA) BOOST_SERIALIZATION_SHARED_PTR(IB) BOOST_SERIALIZATION_SHARED_PTR(IC) //---------------------------------------------------------------------------- // class SharedPtrTest { public: void testSharedPtr() { std::stringstream w_stream; { boost::shared_ptr<ABC> abc(new ABC()); boost::shared_ptr<IA> a(abc); boost::shared_ptr<IB> b(abc); boost::shared_ptr<IC> c(abc); abc->fctABC(); a->fctA(); b->fctB(); c->fctC(); boost::archive::text_oarchive oa(w_stream); oa << BOOST_SERIALIZATION_NVP(abc); oa << BOOST_SERIALIZATION_NVP(a); oa << BOOST_SERIALIZATION_NVP(b); oa << BOOST_SERIALIZATION_NVP(c); } { boost::shared_ptr<ABC> abc; boost::shared_ptr<IA> a; boost::shared_ptr<IB> b; boost::shared_ptr<IC> c; boost::archive::text_iarchive ia(w_stream); ia >> BOOST_SERIALIZATION_NVP(abc); ia >> BOOST_SERIALIZATION_NVP(a); ia >> BOOST_SERIALIZATION_NVP(b); ia >> BOOST_SERIALIZATION_NVP(c); abc->fctABC(); a->fctA(); b->fctB(); c->fctC(); } } }; //---------------------------------------------------------------------------- // class SharedPtrTestSuite : public boost::unit_test::test_suite { public: SharedPtrTestSuite() : test_suite("SharedPtr") { boost::shared_ptr<SharedPtrTest> w_instance(new SharedPtrTest()); add(BOOST_CLASS_TEST_CASE(&SharedPtrTest::testSharedPtr, w_instance)); } }; //---------------------------------------------------------------------------- // boost::unit_test::test_suite* init_unit_test_suite(int, char* []) { boost::unit_test::test_suite* test = BOOST_TEST_SUITE("Unit test"); test->add(new SharedPtrTestSuite()); return test; } Combattez les méchants pourriels... Le filtre SpamGuard vous aide à lutter efficacement contre les pourriels sur le Tout-nouveau Yahoo! Courriel http://us.rd.yahoo.com/evt=40705/*http://mrd.mail.yahoo.com/try_beta?.intl=…

2 1

Re: [Boost-users] Getting the argument types from a function type
by Benjamin Winkler 14 Jun '07

14 Jun '07

Hello Kirit, to solve your specific problem, you could just do without Boost.function and also use templates for operator(): template <class C, typename F> class with_binder { C& m_this; F m_fn; public: with_binder(C& ref, F fn) : m_this(ref), m_fn(fn) { } // one parameter template <typename T1> const with_binder<C,F>& operator()(T1& v1) const { (m_this.*m_fn)(v1); return *this; } template <typename T1> const with_binder<C,F>& operator()(const T1& v1) const { (m_this.*m_fn)(v1); return *this; } // two parameters template <typename T1, typename T2> const with_binder<C,F>& operator()(T1& v1, T2& v2) const { (m_this.*m_fn)(v1, v2); return *this; } template <typename T1, typename T2> const with_binder<C,F>& operator()(const T1& v1, const T2& v2) const { (m_this.*m_fn)(v1, v2); return *this; } // ... and so on ... }; template <class C, typename F> with_binder<C,F> with(C& ref, F fn) { return with_binder<C,F>(ref,fn); } Regards, Benjamin >I've been playing around with a few functional programming idioms in C++ >using Boost.function and Boost.lambda and was wondering if it was >possible to fetch out the argument type (i.e. int) from a type like this: > >void (*somefunc)( int ) > >It looks to me like boost::function<> might be doing something along >these lines. > >I've been working on a version of 'with' for use in initialising lists >etc. At the moment you need to do this: > > std::list< int > list1; > list1.push_back( 3 ); > list1.push_back( 1 ); > list1.push_back( 4 ); > >But using 'with' you can do this: > > with( list2, &std::list< int >::push_back )( 3 )( 1 )( 4 )( 1 )( 5 ); > >The implementation I have right now is fairly simple: > >template< typename F > >struct with_binder { > with_binder( F f ) > : m_f( f ) { > } > const with_binder &operator()( int i ) const { > m_f( i ); > return *this; > } >private: > F m_f; >}; >template< typename O, typename F > inline >with_binder< boost::function< void ( int ) > > with( O &o, F f ) { > return with_binder< boost::function< void ( int ) > >( >boost::lambda::bind( f, &o, boost::lambda::_1 ) ); >} > >But the 'int' argument type is hard coded. I could have it as the first >template parameter to 'with' and simply require that it is given when >using 'with', but it would neater if it could be derived from the type >'F' in 'with'. Clearly to be more generally useful it also needs to be >extended for multiple parameters. > > >K > >_______________________________________________ >Boost-users mailing list >Boost-users(a)lists.boost.org >http://lists.boost.org/mailman/listinfo.cgi/boost-users

4 3

boost python: undefined reference in mingw compiler.
by chun ping wang 14 Jun '07

14 Jun '07

Hi i try compiling boost.python using make a file. On cygwin i got it to work creating .pydf files. I tried the same on windows python2.5 with boost 1.34 I get undefined reference errors such as this. ./boost_python/dfaPythonWrapper.o(.text+0x12a): In function `initdfa': C:/CPW/cs_classes/./cs386/c++/dfaPythonWrapper.cpp:5: undefined reference to `_imp___ZN5boost6python6detail11init_moduleEPKcPFvvE' ./boost_python/dfaPythonWrapper.o(.text$_ZN5boost6python6class_I3DFANS0_6detail13not_specifiedES4_S4_EC1INS0_4initISt3mapINS_6tuples5tupleIciNS9_9null_typeESB_SB_SB_SB_SB_SB_SB_EEiSt4lessISC_ESaISt4pairIKSC_iEEESt3setIiSD_IiESaIiEEN4mpl_5void_ESP_SP_SP_SP_SP_SP_SP_SP_SP_SP_SP_SP_EEEEPKcRKNS0_9init_baseIT_EE[boost::python::class_<DFA, boost::python::detail::not_specified, boost::python::detail::not_specified, boost::python::detail::not_specified>::class_<boost::python::init<std::map<boost::tuples::tuple<char, int, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type>, int, std::less<boost::tuples::tuple<char, int, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> >, std::allocator<std::pair<boost::tuples::tuple<char, int, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> const, int> > >, std::set<int, std::less<int>, std::allocator<int> >, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_> >(char const*, boost::python::init_base<boost::python::init<std::map<boost::tuples::tuple<char, int, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type>, int, std::less<boost::tuples::tuple<char, int, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> >, std::allocator<std::pair<boost::tuples::tuple<char, int, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> const, int> > >, std::set<int, std::less<int>, std::allocator<int> >, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_> > const&)]+0x76): In function `ZN5boost6python7type_idIRVKSt3setIiSt4lessIiESaIiEEEENS0_9type_infoEv': C:/Boost/include/boost_1_34/boost/python/converter/registered.hpp: undefined reference to `_imp___ZN5boost6python7objects10class_baseC2EPKcjPKNS0_9type_infoES4_' ./boost_python/dfaPythonWrapper.o(.text$_ZN5boost6python3defIPF3DFARKSsEEEvPKcT_[void boost::python::def<DFA (*)(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)>(char const*, DFA (*)(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&))]+0x78):C:/Boost/include/boost_1_34/boost/python/converter/registered.hpp: undefined reference to `_imp___ZN5boost6python6detail17scope_setattr_docEPKcRKNS0_3api6objectES3_' ./boost_python/dfaPythonWrapper.o(.text$_ZN5boost6python6class_I3DFANS0_6detail13not_specifiedES4_S4_E10initializeINS0_9init_baseINS0_4initISt3mapINS_6tuples5tupleIciNSA_9null_typeESC_SC_SC_SC_SC_SC_SC_EEiSt4lessISD_ESaISt4pairIKSD_iEEESt3setIiSE_IiESaIiEEN4mpl_5void_ESQ_SQ_SQ_SQ_SQ_SQ_SQ_SQ_SQ_SQ_SQ_SQ_EEEEEEvRKT_[void boost::python::class_<DFA, boost::python::detail::not_specified, boost::python::detail::not_specified, boost::python::detail::not_specified>::initialize<boost::python::init_base<boost::python::init<std::map<boost::tuples::tuple<char, int, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type>, int, std::less<boost::tuples::tuple<char, int, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> >, std::allocator<std::pair<boost::tuples::tuple<char, int, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> const, int> > >, std::set<int, std::less<int>, std::allocator<int> >, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_> > >(boost::python::init_base<boost::python::init<std::map<boost::tuples::tuple<char, int, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type>, int, std::less<boost::tuples::tuple<char, int, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> >, std::allocator<std::pair<boost::tuples::tuple<char, int, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type, boost::tuples::null_type> const, int> > >, std::set<int, std::less<int>, std::allocator<int> >, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_, mpl_::void_> > const&)]+0x24):C:/Boost/include/boost_1_34/boost/python/converter/registered.hpp: undefined reference to `_imp___ZN5boost6python7objects10class_base17set_instance_sizeEj' ./boost_python/dfaPythonWrapper.o(.text$_ZN5boost6python6class_I3DFANS0_6detail13not_specifiedES4_S4_E8def_implIS2_MS2_FbRKSsRKiENS3_10def_helperIPKcS4_S4_S4_EEEEvPT_SF_T0_RKT1_z[void boost::python::class_<DFA, boost::python::detail::not_specified, boost::python::detail::not_specified, boost::python::detail::not_specified>::def_impl<DFA, bool (DFA::*)(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int const&), boost::python::detail::def_helper<char const*, boost::python::detail::not_specified, boost::python::detail::not_specified, boost::python::detail::not_specified> >(DFA*, char const*, bool (DFA::*)(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int const&), boost::python::detail::def_helper<char const*, boost::python::detail::not_specified, boost::python::detail::not_specified, boost::python::detail::not_specified> const&, ...)]+0xef):C:/Boost/include/boost_1_34/boost/python/converter/registered.hpp: undefined reference to `_imp___ZN5boost6python7objects16add_to_namespaceERKNS0_3api6objectEPKcS5_S7_' ./boost_python/dfaPythonWrapper.o(.text$_ZN5boost6python6detail17make_function_auxIM3DFAFbRKSsRKiENS0_21default_call_policiesENS_3mpl7vector4IbRS3_S5_S7_EEN4mpl_4int_ILi0EEEEENS0_3api6objectET_RKT0_RKT1_RKSt4pairIPKNS1_7keywordESU_ET2_[boost::python::api::object boost::python::detail::make_function_aux<bool (DFA::*)(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int const&), boost::python::default_call_policies, boost::mpl::vector4<bool, DFA&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int const&>, mpl_::int_<0> >(bool (DFA::*)(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int const&), boost::python::default_call_policies const&, boost::mpl::vector4<bool, DFA&, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, int const&> const&, std::pair<boost::python::detail::keyword const*, boost::python::detail::keyword const*> const&, mpl_::int_<0>)]+0x8b):C:/Boost/include/boost_1_34/boost/python/converter/registered.hpp: undefined reference to `_imp___ZN5boost6python7objects15function_objectERKNS1_11py_functionERKSt4pairIPKNS0_6detail7keywordES9_E' ./boost_python/dfaPythonWrapper.o(.text$_ZN5boost6python6detail17make_function_auxIPF3DFARKSsENS0_21default_call_policiesENS_3mpl7vector2IS3_S5_EEEENS0_3api6objectET_RKT0_RKT1_[boost::python::api::object boost::python::detail::make_function_aux<DFA (*)(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&), boost::python::default_call_policies, boost::mpl::vector2<DFA, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&> >(DFA (*)(std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&), boost::python::default_call_policies const&, boost::mpl::vector2<DFA, std::basic_string<char, std::char_traits<char>, std::allocator<char> > const&> const&)]+0x7d):C:/Boost/include/boost_1_34/boost/python/converter/registered.hpp: undefined reference to `_imp___ZN5boost6python7objects15function_objectERKNS1_11py_functionE' ./boost_python/dfaPythonWrapper.o(.text$_ZN5boost6python7objects21py_function_impl_baseC2Ev[boost::python::objects::py_function_impl_base::py_function_impl_base()]+0x14):C:/Boost/include/boost_1_34/boost/python/converter/registered.hpp: undefined reference to `_imp___ZTVN5boost6python7objects21py_function_impl_baseE' ./boost_python/dfaPythonWrapper.o(.text$_ZN5boost6python9converter22shared_ptr_from_pythonI3DFAEC1Ev[boost::python::converter::shared_ptr_from_python<DFA>::shared_ptr_from_python()]+0x2f):C:/Boost/include/boost_1_34/boost/python/converter/registered.hpp: undefined reference to `_imp___ZN5boost6python9converter8registry6insertEPFPvP7_objectEPFvS5_PNS1_30rvalue_from_python_stage1_dataEENS0_9type_infoE' ./boost_python/dfaPythonWrapper.o(.text$_ZN5boost6python7objects19register_dynamic_idI3DFAEEvPT_[void boost::python::objects::register_dynamic_id<DFA>(DFA*)]+0x27):C:/Boost/include/boost_1_34/boost/python/converter/registered.hpp: undefined reference to `_imp___ZN5boost6python7objects23register_dynamic_id_auxENS0_9type_infoEPFSt4pairIPvS2_ES4_E' ./boost_python/dfaPythonWrapper.o(.text$_ZN5boost6python19to_python_converterI3DFANS0_7objects18class_cref_wrapperIS2_NS3_13make_instanceIS2_NS3_12value_holderIS2_EEEEEEEC2Ev[boost::python::to_python_converter<DFA, boost::python::objects::class_cref_wrapper<DFA, boost::python::objects::make_instance<DFA, boost::python::objects::value_holder<DFA> > > >::to_python_converter()]+0x27):C:/Boost/include/boost_1_34/boost/python/converter/registered.hpp: undefined reference to `_imp___ZN5boost6python9converter8registry6insertEPFP7_objectPKvENS0_9type_infoE' ./boost_python/dfaPythonWrapper.o(.text$_ZN5boost6python9converter22shared_ptr_from_pythonI3DFAE11convertibleEP7_object[boost::python::converter::shared_ptr_from_python<DFA>::convertible(_object*)]+0x11):C:/Boost/include/boost_1_34/boost/python/converter/registered.hpp: undefined reference to `_imp___Py_NoneStruct' ./boost_python/dfaPythonWrapper.o(.text$_ZN5boost6python9converter22shared_ptr_from_pythonI3DFAE11convertibleEP7_object[boost::python::converter::shared_ptr_from_python<DFA>::convertible(_object*)]+0x32):C:/Boost/include/boost_1_34/boost/python/converter/registered.hpp: undefined reference to `_imp___ZN5boost6python9converter22get_lvalue_from_pythonEP7_objectRKNS1_12registrationE' ./boost_python/dfaPythonWrapper.o(.text$_ZN5boost6python9converter22shared_ptr_from_pythonI3DFAE9constructEP7_objectPNS1_30rvalue_from_python_stage1_dataE[boost::python::converter::shared_ptr_from_python<DFA>::construct(_object*, boost::python::converter::rvalue_from_python_stage1_data*)]+0xfa):C:/Boost/include/boost_1_34/boost/python/converter/registered.hpp: undefined reference to `_imp___ZN5boost6python9converter18shared_ptr_deleterC1ENS0_6handleI7_objectEE' ./boost_python/dfaPythonWrapper.o(.text$_ZN5boost6python9converter22shared_ptr_from_pythonI3DFAE9constructEP7_objectPNS1_30rvalue_from_python_stage1_dataE[boost::python::converter::shared_ptr_from_python<DFA>::construct(_object*, boost::python::converter::rvalue_from_python_stage1_data*)]+0x1ce): In function `Z15init_module_dfav': C:/CPW/cs_classes/./cs386/c++/dfaPythonWrapper.cpp:7: undefined reference to `_imp___ZN5boost6python9converter18shared_ptr_deleterD1Ev' ..... C:/Boost/lib/libboost_python-mgw34-1_34.a(function.o)(.text+0x52): function.cpp: undefined reference to `_imp___Py_NotImplementedStruct' C:/Boost/lib/libboost_python-mgw34-1_34.a(function.o)(.text+0x5b): function.cpp: undefined reference to `_imp___Py_NotImplementedStruct' C:/Boost/lib/libboost_python-mgw34-1_34.a(function.o)(.text+0xaa): function.cpp: undefined reference to `_imp___Py_NoneStruct' C:/Boost/lib/libboost_python-mgw34-1_34.a(function.o)(.text+0xba): function.cpp: undefined reference to `_imp__PyMethod_New' C:/Boost/lib/libboost_python-mgw34-1_34.a(function.o)(.text+0xe1): function.cpp: undefined reference to `_imp__PyExc_RuntimeError' C:/Boost/lib/libboost_python-mgw34-1_34.a(function.o)(.text+0xec): function.cpp: undefined reference to `_imp__PyErr_SetString' C:/Boost/lib/libboost_python-mgw34-1_34.a(function.o)(.text+0x218): function.cpp: undefined reference to `_imp___Py_NoneStruct' C:/Boost/lib/libboost_python-mgw34-1_34.a(function.o)(.text+0x25b): function.cpp: undefined reference to `_imp___Py_NoneStruct' Thanks for the help in advance.

2 3

optimizing use of dynamic_bitset
by Dave Steffen 14 Jun '07

14 Jun '07

Hi Folks, Having gotten a big chunk of code to work, I'm now spending a few days making it fast. So far, I've removed enough overhead to drop our runtime by a factor of 4, and a big part of that was replacing some other data structures with dynamic_bitset. Profiling data now indicates that one of the more expensive operations is spending most of its time calling dynamic_bitset<>::test a bajillion times. My question is this: is dynamic_bitset::test generally thought to be the fastest way to access a specific bit in a dynamic_bitset? Are there other ways to determine if bit n is set? (I assume that anything using dynamic_bitset::operator[] will be slower, since it has to set up a proxy, but have not tested this.) Any thoughts are appreciated. Thanks! -- Dave Steffen, Ph.D. Disobey this command! Software Engineer IV - Douglas Hofstadter Numerica Corporation dg@steffen a@t numerica d@ot us (remove @'s to email me)

2 1

Boost 1.34 and VC++ 64
by Yutaka Leon Suematsu 14 Jun '07

14 Jun '07

Hi boost users, I am trying to install Boost 1.34 in a Vista x64 (Core-duo) & VC++ 2005. I could compile the x32 version without any problems. But, when trying to compile the x64 version I have the popup message "Windows cannot open this file : execution_monitor.obj.rsp" The command I used was: bjam --build-dir=C:\tmp\build-boost --toolset=msvc address-model=64 stage Any help would be highly appreciate, Yutaka Leon. On 2007/06/05, at 22:38, boost-users-request(a)lists.boost.org wrote: > Send Boost-users mailing list submissions to > boost-users(a)lists.boost.org > > To subscribe or unsubscribe via the World Wide Web, visit > http://lists.boost.org/mailman/listinfo.cgi/boost-users > or, via email, send a message with subject or body 'help' to > boost-users-request(a)lists.boost.org > > You can reach the person managing the list at > boost-users-owner(a)lists.boost.org > > When replying, please edit your Subject line so it is more specific > than "Re: Contents of Boost-users digest..." > > > Today's Topics: > > 1. Pb compiling spirit with Sun C++ 5.5 (Christophe Delarue) > 2. program_options linking problem (Moritz Moeller) > 3. Formatting and passing variable parameters. > (Prasanta K Chakravarty) > 4. [serialization]: text (xml) iarchive - format options for > integers? (Frank Bergemann) > 5. Re: [integer] Request: long long (64 bits) supportforint_t > and uint_t (me22) > 6. lib folder? (Mike Wyatt) > 7. Re: lib folder? (dhruva) > 8. Re: Boost 1.34 and VC++ x64 (Andreas Fabri) > > > ---------------------------------------------------------------------- > > Message: 1 > Date: Tue, 5 Jun 2007 10:20:49 +0200 > From: "Christophe Delarue" <christophe.delarue(a)gmail.com> > Subject: [Boost-users] Pb compiling spirit with Sun C++ 5.5 > To: boost-users(a)lists.boost.org > Message-ID: > <df19a5aa0706050120h1354f677yb7192b8cd8f78dba(a)mail.gmail.com> > Content-Type: text/plain; charset="iso-8859-1" > > HI boost users, > > We are trying to compile boost spirit to use the xml serialization, > but we > got compiler error on : > CC -V > CC: Sun C++ 5.5 2003/03/12 > > > + /Soft/sunstudio/8/bin/CC +d -g -xs -mt -DBOOST_ALL_DYN_LINK=1 > + -DBOOST_ALL_NO_LIB=1 -I. -I/Home/ut0bcm/Boost/boost_1_34_0 > + -I/Soft/sunstudio/8/prod/include/CC/stlport4 -I/usr/include > + -library=stlport4 -c -o > bin.v2/libs/wave/build/sun/debug/threading-multi/ > instantiate_cpp_exprgrammar.o > libs/wave/src/instantiate_cpp_exprgrammar.cpp > > "./boost/spirit/phoenix/actor.hpp", line 345: Error: Could not find > a match > for phoenix::actor<phoenix::BaseT>::operator()(phoenix::A&) const. > "./boost/spirit/phoenix/actor.hpp", line 354: Error: Could not find > a match > for phoenix::actor<phoenix::BaseT>::operator()(phoenix::A&, > phoenix::B&) > const. > "./boost/spirit/phoenix/actor.hpp", line 354: Error: Too many args in > template, from phoenix::B on ignored. > "./boost/spirit/phoenix/actor.hpp", line 363: Error: Could not find > a match > for phoenix::actor<phoenix::BaseT>::operator()(phoenix::A&, > phoenix::B&, > phoenix::C&) const. > "./boost/spirit/phoenix/actor.hpp", line 363: Error: Too many args in > template, from phoenix::B on ignored. > "./boost/spirit/phoenix/actor.hpp", line 373: Error: Could not find > a match > for phoenix::actor<phoenix::BaseT>::operator()(phoenix::A&, > phoenix::B&, > phoenix::C&, phoenix::D&) const. > "./boost/spirit/phoenix/actor.hpp", line 373: Error: Too many args in > template, from phoenix::B on ignored. > "./boost/spirit/phoenix/actor.hpp", line 382: Error: Could not find > a match > for phoenix::actor<phoenix::BaseT>::operator()(phoenix::A&, > phoenix::B&, > phoenix::C&, phoenix::D&, phoenix::E&) const. > "./boost/spirit/phoenix/actor.hpp", line 382: Error: Too many args in > template, from phoenix::B on ignored. > "./boost/spirit/phoenix/actor.hpp", line 397: Error: Could not find > a match > for phoenix::actor<phoenix::BaseT>::operator()(phoenix::A&, > phoenix::B&, > phoenix::C&, phoenix::D&, phoenix::E&, phoenix::F&) const. > "./boost/spirit/phoenix/actor.hpp", line 397: Error: Too many args in > template, from phoenix::B on ignored. > "./boost/spirit/phoenix/actor.hpp", line 589: Error: Could not find > a match > for phoenix::actor<phoenix::BaseT>::operator()(const > phoenix::unpack_tuple<phoenix::actor<phoenix::BaseT>::TupleT>&) const. > > > -- > -- > Christophe Delarue > mailto:christophe.delarue@gmail.com > 06 12 95 49 56 >

3 2

derivative work
by Ruediger Berlich 14 Jun '07

14 Jun '07

Hi there, just a short question about the meaning of "derivative work" in the Boost software license (and the associated requirement to list the Copyright and license terms in such work). My understanding of the term "derivative work" is that it applies to modifications of the original code only, not to software _using_ the code. I.e., if I were to modify the code in shared_ptr.hpp, then of course I would have to include the original Copyright notices and license terms. Whereas, if I use shared_ptr in my software, I do not need to list the original Copyright notices and license terms. Plus, the Copyright of my own cose is solely with me. Is this interpretation correct ? Best Regards and thanks for your help, Ruediger Berlich

10 19

Getting the argument types from a function type
by Kirit Sælensminde 14 Jun '07

14 Jun '07

I've been playing around with a few functional programming idioms in C++ using Boost.function and Boost.lambda and was wondering if it was possible to fetch out the argument type (i.e. int) from a type like this: void (*somefunc)( int ) It looks to me like boost::function<> might be doing something along these lines. I've been working on a version of 'with' for use in initialising lists etc. At the moment you need to do this: std::list< int > list1; list1.push_back( 3 ); list1.push_back( 1 ); list1.push_back( 4 ); But using 'with' you can do this: with( list2, &std::list< int >::push_back )( 3 )( 1 )( 4 )( 1 )( 5 ); The implementation I have right now is fairly simple: template< typename F > struct with_binder { with_binder( F f ) : m_f( f ) { } const with_binder &operator()( int i ) const { m_f( i ); return *this; } private: F m_f; }; template< typename O, typename F > inline with_binder< boost::function< void ( int ) > > with( O &o, F f ) { return with_binder< boost::function< void ( int ) > >( boost::lambda::bind( f, &o, boost::lambda::_1 ) ); } But the 'int' argument type is hard coded. I could have it as the first template parameter to 'with' and simply require that it is given when using 'with', but it would neater if it could be derived from the type 'F' in 'with'. Clearly to be more generally useful it also needs to be extended for multiple parameters. K

2 2

chdir
by ivan＠0x4849.net 14 Jun '07

14 Jun '07

Hi, I am trying to build boost on a debian system using bash shell. I am getting erros: /bin/sh: line 1: chdir: command not found Is this a common problem? Should i just alias chdir to cd? Thanks, Ivan --------------------- Ivan Novick http://www.0x4849.net

2 2

graph library : isomorphism.hpp vertex invariant parameter
by Patrick A. La Fratta 14 Jun '07

14 Jun '07

Setting the "vertex_invariant" parameter to the isomorphism function does not seem to have any affect on the behavior of the function. In isomorphism.hpp, it appears that the function "isomorphism_impl" is supposed to read the parameter at the return statement: return isomorphism(G1, G2, f, choose_param(get_param(params, vertex_invariant1_t()), invariant1), choose_param(get_param(params, vertex_invariant2_t()), invariant2), choose_param(get_param(params, vertex_max_invariant_t()), ( invariant2.max )()), index_map1, index_map2 ); If "vertex_invariant1_t()" and "vertex_invariant2_t()" are both changed to "vertex_invariant_t()", the setting of the parameter then seems to have an affect. Has anyone been able to successfully set the vertex_invariant parameter using the named parameter version of the isomorphism function? I have had to resort to calling one of the internal isomorphism functions to set this parameter. any help is appreciated, Patrick

3 5

some libraries missing
by Fulvio Esposito 13 Jun '07

13 Jun '07

Hi all boost users, recently I downloaded source package for version 1.34 from sf.net, but i discovered some library that was accepted were missing (like asio, gil and some others). I think at least they should be in CVS but i've never worked with a source control system. How can I obtain a full distribution from CVS? I'm working on Microsoft Windows XP/Visual C++ Express 2005! Thank you all guys, Fulvio Esposito

2 1

[boost::program_options] optional arguments
by Bryan Green 13 Jun '07

13 Jun '07

Hello, Is there a mechanism in boost::program_options for supporting optional arguments? If not, is there a suggested program_options-based alternative? This question was posed by someone else about a year ago, but did not get a response. Here is the quote: BEGIN QUOTE From: Dale McCoy (dalestan_at_[hidden]) Date: 2006-04-22 21:15:51 I'm trying to convert from getopt (GNU's getopt_long, to be more specific) to boost::program_options, but have run into trouble converting "D::" and {"data",optional_argument,NULL,'D'} (If you're not familiar with getopt, that means that --data is equivalent to -D, and both take an optional argument, so "-D", "--data", "-Darg", and "--data=arg" are all valid.) I see that the first argument to add_option should be "data,D", but then things get fuzzy. I saw nothing in the documentation concerning optional arguments, either directly, or using additional parsers. What is the appropriate method for implementing such options? I'm using currently using Boost 1.33.1. Dale END QUOTE Bryan

2 4

limits.hpp defective
by Daniel Krügler 13 Jun '07

13 Jun '07

Hello, ~3 weeks ago I reported a bug in limits.hpp: May, 21th: "Wrong member definitions in limits.hpp" and also put it into the bug tracking system: http://svn.boost.org/trac/boost/ticket/972 Since no feedback occurred, I repost this now. Another, related question: I found that both SVN and CVS repositories have rather different contents. Could someone explain to me the reasons for these deviations? Thanks in advance, Daniel Krügler

3 2

[intrusive] lock-free algorithms
by Zeljko Vrba 13 Jun '07

13 Jun '07

Are there any plans to extend the intrusive library with lock-free data structures (stacks, FIFO queues)? I'm about to start writing my own lock-free classes and have thought that it'd be nice to include them in the intrusive library, if possible [I've gotten used to the interface, and I don't want to have different interfaces in my code]. My goals: - lock-free stack and queue - SMR (both described in "Safe Memory Reclamation for Dynamic Lock-Free Objects Using Atomic Reads and Writes" by Maged M. Michael) - target platform: Solaris using atomic_ops (3C); possibly also inline ASM for SunCC I don't have neither time nor resources (nor will, for that matter) to make a full implementation that works on all platforms supported by Boost. Also, I do *not* want to use Boost.Thread. The code is parametrized by the following (all related to SMR): - number of participating threads (every "thread" must be associated with a unique integer starting from 0) - number of hazard pointers - batch size SMR also needs static storage accessed by all threads. Any suggestions are welcome.

2 6

astar help
by bringiton bringiton 13 Jun '07

13 Jun '07

I have a number of questions RE the astar-cities example. Why is the distance_heuristic class needed. Is it used to find the weight for a test vertex to the goal vertex? I put a breakpoint in distance_heuristic::operator() and it never gets called. Is it ever used? astar_search (... distance_heuristic<mygraph_t, cost, location*> ...) Do I have to define my own or supply an astar_heuristic? Or can I pass a default heuristic? astar_goal_visitor. Do I need to use this or can I pass a default default_astar_visitor? Are there other ways of reaching a goal without throwing an exception? Thanks. Any advice appreciated

1 1

multi_index_container and templates
by Andrej van der Zee 13 Jun '07

13 Jun '07

Hi, I am trying to set up a multi_index_container-type with a template argument like this: template <typename event_type> struct mi_container { typedef typename mi::composite_key< event_type, mi::const_mem_fun<fields::field_ts, ts_type, &fields::field_ts::ts>, mi::const_mem_fun<fields::field_addr, addr_type, &fields::field_addr::addr>, mi::const_mem_fun<fields::field_port, port_type, &fields::field_port::port> > self_key_type; typedef typename mi::composite_key< event_type, mi::const_mem_fun<fields::field_ts, ts_type, &fields::field_ts::ts>, mi::const_mem_fun<fields::field_peer_addr, addr_type, &fields::field_peer_addr::peer_addr>, mi::const_mem_fun<fields::field_peer_port, port_type, &fields::field_peer_port::peer_port> > peer_key_type; typedef typename mi::multi_index_container< event_type, mi::indexed_by< mi::ordered_non_unique< mi::tag<self_key_tag>, self_key_type>, mi::ordered_non_unique< mi::tag<peer_key_tag>, peer_key_type> > > type; }; mi_container<ev_connect>::type connected; This gives me the following compile-error: main.cpp: In instantiation of mi_container<event::ev_connect>: main.cpp:78: instantiated from here main.cpp:57: error: invalid use of event::fields::field_ts::ts to form a pointer-to-member-function main.cpp:57: note: a qualified-id is required main.cpp:64: error: invalid use of event::fields::field_ts::ts to form a pointer-to-member-function main.cpp:64: note: a qualified-id is required main.cpp:75: error: invalid use of event::fields::field_ts::ts to form a pointer-to-member-function main.cpp:75: note: a qualified-id is required Probably I doing something silly. Note that if I remove the class template and directly specialize it, there is no problem at all. Can anybody help me out? Thanks, Andrej ___________________________________________________________ Yahoo! Mail is the world's favourite email. Don't settle for less, sign up for your free account today http://uk.rd.yahoo.com/evt=44106/*http://uk.docs.yahoo.com/mail/winter07.ht…

2 5