August 2012 - Boost-users - lists.preview.boost.org

MSM accepts events before calling start
by Andreas Kobler 30 Aug '12

30 Aug '12

Dear all Recently I discovered MSM - a very nice piece of code! It let me define the state machine decoupled from the other business logic code what brought me easier unit testing and easier life :-) Really nice so far. This week I faced the following situation: my MSM accepts and processes events BEFORE its start() method was called. Is this behavior by design? I know other state machine implementations which do not accept any events until they are started. If the MSM's behavior related to this start issue is on purpose, can anybody tell me the background? Just curious if others have same thoughts or if my mind acrobatic is totally odd. Thanks for any comments Andi

2 1

[boost-mpi] spawning and leaked comm handles
by Brian Budge 30 Aug '12

30 Aug '12

Hi all - I wasn't entirely sure if I should post this here, or at the OpenMPI list, but I believe my issue is coming from the way I'm using boost.mpi. I appear to be leaking MPI_Comm handles. Since I intend to spawn hundreds of times during the lifetime of my program, this is less than ideal ;) Here's the code //common.h #include <boost/mpi.hpp> std::string get_processor_name() { char buf[256]; int blen = 256; MPI_Get_processor_name(buf, &blen); return std::string(buf); } //master.cpp #include "common.h" void doWork(size_t numChildren, char *cmd) { namespace mpi = boost::mpi; MPI_Comm all; MPI_Comm_spawn(cmd, MPI_ARGV_NULL, numChildren, MPI_INFO_NULL, 0, MPI_COMM_SELF, &all, MPI_ERRCODES_IGNORE); mpi::intercommunicator intercomm(all, mpi::comm_duplicate); mpi::communicator comm = intercomm.merge(false); std::cerr << "spawned by " << get_processor_name() << " (rank " << comm.rank() << ")" << std::endl; std::string str; for(int i = 1; i < comm.size(); ++i) { comm.recv(i, 0, str); std::cerr << "got string " << str << " from rank " << i << std::endl; } std::string mymsg = "hi back form the master"; broadcast(comm, mymsg, 0); } int main(int argc, char **args) { std::cerr << "hi, it's me" << std::endl; //mpi::environment env; int provided; MPI_Init_thread(NULL, NULL, MPI_THREAD_MULTIPLE, &provided); std::ifstream inFile("hostsfile"); std::string dest; size_t totalProcesses = 0; std::string hosts; while(std::getline(inFile, dest)) { totalProcesses += (!dest.empty() && dest[0] != '#'); } char *cmd = strdup("/home/budgeb/tests/test_mpi/spawnslave"); for(size_t j = 0; j < 2; ++j) { doWork(totalProcesses - 1, cmd); } free(cmd); MPI_Finalize(); return 0; } //slave.cpp #include "common.h" #include <boost/lexical_cast.hpp> #include <math.h> void doWork() { namespace mpi = boost::mpi; MPI_Comm parent; MPI_Comm_get_parent(&parent); mpi::intercommunicator intercomm(parent, mpi::comm_duplicate); mpi::communicator comm = intercomm.merge(true); std::cerr << "slave " << get_processor_name() << " of rank " << comm.rank() << std::endl; double d = comm.rank(); for(size_t i = 0; i < 100000000; ++i) { d = sin(exp(d)); } comm.send(0, 0, std::string("hello world (") + boost::lexical_cast<std::string>(d) + ")"); std::string masterMsg; broadcast(comm, masterMsg, 0); std::cerr << "master sent this: " << masterMsg << std::endl; } int main(int argc, char **args) { int provided; MPI_Init_thread(NULL, NULL, MPI_THREAD_MULTIPLE, &provided); doWork(); MPI_Finalize(); return 0; } When I run this program, my output is fine, but upon shutdown, I get this: [budgeb-interlagos:04473] WARNING: MPI_Comm still allocated in MPI_Finalize [budgeb-interlagos:04473] Dumping information for comm_cid 4 [budgeb-interlagos:04473] f2c index:4 cube_dim: 0 [budgeb-interlagos:04473] Local group: size = 1 my_rank = 0 [budgeb-interlagos:04473] Communicator is: [budgeb-interlagos:04473] inter-comm, [budgeb-interlagos:04473] [budgeb-interlagos:04473] Remote group size:3 [budgeb-interlagos:04473] WARNING: MPI_Comm still allocated in MPI_Finalize [budgeb-interlagos:04473] Dumping information for comm_cid 6 [budgeb-interlagos:04473] f2c index:6 cube_dim: 0 [budgeb-interlagos:04473] Local group: size = 1 my_rank = 0 [budgeb-interlagos:04473] Communicator is: [budgeb-interlagos:04473] inter-comm, [budgeb-interlagos:04473] [budgeb-interlagos:04473] Remote group size:3 Does anyone know why this leak might occur? Thanks, Brian

1 1

problems in compiling application using IBM XL C/C++ V12.1 and boost1.50.0
by Avi Bahra 30 Aug '12

30 Aug '12

I have used boost v12 and v11 compilers with boost 1.47 on AIX rs6000, power6, power7. Having said that, you still need to test each lib, for your needs. I know the following compiled libs do work. serialisation, system date_time filesystem program_options serialization ( but requires a patch) thread test variant Also boost spirit is broken, but classic still works.( yes but really slow) At some point in the future we will go to boost 1.51. In my own experience, most times you can patch the boost headers to make it work. It's well worth trying this since there are few users of AIX and boost. -- Best regards, Ta, Avi ======================================================== Hi All, I am getting compilation errors when I try to build my application code which includes some boost headers using IBM XL C/C++ compiler V12.1. ------------------------------------------------------------------------------------------------ "/opt/boost/include/boost/date_time/time_resolution_traits.hpp", line 71.21: 1540-0063 (S) The text "->" is unexpected. "/opt/boost/include/boost/date_time/time_resolution_traits.hpp", line 135.33: 1540-0040 (S) The text "<" is unexpected. "time_resolution_traits" may be undeclared or ambiguous. "/opt/boost/include/boost/date_time/time_resolution_traits.hpp", line 136.33: 1540-0040 (S) The text "<" is unexpected. "time_resolution_traits" may be undeclared or ambiguous. "/opt/boost/include/boost/date_time/time_resolution_traits.hpp", line 137.33: 1540-0040 (S) The text "<" is unexpected. "time_resolution_traits" may be undeclared or ambiguous. "/opt/boost/include/boost/date_time/posix_time/posix_time_config.hpp", line 40.44: 1540-0040 (S) The text "<" is unexpected. "date_time::time_resolution_traits" may be undeclared or ambiguous. ------------------------------------------------------------------------------------------------- These errors seems come due to the fact that this version of compiler is claimed to have more standard conformance than its predecessors. I confirmed from boost release notes of boost 1.50.0 that V12. of XL C/C++ supports this boost version. But still I encountered above errors. Should I use an older version of XL C/C++ compiler so that such errors can be avoided ? Does anybody encountered similar issues ? I am completely stuck at this point and would greatly appreciate any ideas to understand and resolve this. Thanks, Pravar

1 0

[Boost.Test] Linker chooses “wrong” main function
by Adi Shavit 30 Aug '12

30 Aug '12

Hi, I have a really strange problem. When using Boost.Test, there is generally no need to define a main() function, since Boost.Test provides one itself. I recently had to convert my project to use static linking of 3rd party libraries (on VS2010). Naturally, I had to link to multiple .libs so that the build succeeds, and my build ran just fine. However, when I ran my test project, something really strange happened. It seems that one of the 3rd party .libs (libpng), required by one of my dependent libraries, contained a test file with a main() function defined within (pngtest.c). Since my project did not have a main() function, The linker chose that one as my "test" application. Thus, non of my tests run. Does anyone know how I prevent this from happening? How can I tell the linker/compiler to use the Boost.Test main()? Thanks, Adi

2 4

Boost ICL not working as expected, expects std::set operator+=
by Adam Baxter 29 Aug '12

29 Aug '12

Hello All, I'm trying to use Boost (1.51) ICL to simplify some interval searches. Types: SequenceI::shp_set is a std::set of shared pointers types::mz_t is a Boost::Units quantity interval_map<types::mz_t, SequenceI::shp_set> is the typedef for the interval map I have a function that creates the appropriate segments and then I try to do msMap.add(segment); segment is: make_pair(interval<types::mz_t>::closed(lowerRange,upperRange), returnSet); (returnSet is just a SequenceI::shp_set) I then get the below error during compile. Looking at the "Party" code, nothing special is done to set to make things work. Would anyone be able to help me? Adam Baxter In file included from /home/adamb/Development/apollo/libapollo/include/theory.hpp:16: In file included from /home/adamb/local/include/boost/icl/interval_map.hpp:13: In file included from /home/adamb/local/include/boost/icl/interval_set.hpp:14: In file included from /home/adamb/local/include/boost/icl/interval_base_set.hpp:24: In file included from /home/adamb/local/include/boost/icl/associative_interval_container.hpp:16: In file included from /home/adamb/local/include/boost/icl/concept/interval_set.hpp:13: In file included from /home/adamb/local/include/boost/icl/detail/set_algo.hpp:16: /home/adamb/local/include/boost/icl/functors.hpp:73:18: error: no viable overloaded '+=' { object += operand; } ~~~~~~ ^ ~~~~~~~ /home/adamb/local/include/boost/icl/interval_base_map.hpp:855:5: note: in instantiation of member function 'boost::icl::inplace_plus<std::set<boost::shared_ptr<apollo::SequenceI>, std::less<boost::shared_ptr<apollo::SequenceI> >, std::allocator<boost::shared_ptr<apollo::SequenceI> > > >::operator()' requested here Combiner()((*it_).second, co_val); ^ /home/adamb/local/include/boost/icl/interval_base_map.hpp:870:9: note: in instantiation of function template specialization 'boost::icl::interval_base_map<boost::icl::interval_map<boost::units::quantity<boost::units::unit<boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::heterogeneous_system<boost::units::heterogeneous_system_impl<boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::dalton_mass_base_unit, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::charge_state_base_unit, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> >, boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::dimensionless_type> >, void>, float>, std::set<boost::shared_ptr<apollo::SequenceI>, std::less<boost::shared_ptr<apollo::SequenceI> >, std::allocator<boost::shared_ptr<apollo::SequenceI> > >, boost::icl::partial_absorber, std::less, icl::inplace_plus, icl::inter_section, boost::icl::continuous_interval<boost::units::quantity<boost::units::unit<boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::heterogeneous_system<boost::units::heterogeneous_system_impl<boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::dalton_mass_base_unit, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::charge_state_base_unit, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> >, boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::dimensionless_type> >, void>, float>, less>, std::allocator>, boost::units::quantity<boost::units::unit<boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::heterogeneous_system<boost::units::heterogeneous_system_impl<boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::dalton_mass_base_unit, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::charge_state_base_unit, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> >, boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::dimensionless_type> >, void>, float>, std::set<boost::shared_ptr<apollo::SequenceI>, std::less<boost::shared_ptr<apollo::SequenceI> >, std::allocator<boost::shared_ptr<apollo::SequenceI> > >, boost::icl::partial_absorber, less, inplace_plus, inter_section, boost::icl::continuous_interval<boost::units::quantity<boost::units::unit<boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::heterogeneous_system<boost::units::heterogeneous_system_impl<boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::dalton_mass_base_unit, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::charge_state_base_unit, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> >, boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::dimensionless_type> >, void>, float>, less>, allocator>::add_segment<boost::icl::inplace_plus<std::set<boost::shared_ptr<apollo::SequenceI>, std::less<boost::shared_ptr<apollo::SequenceI> >, std::allocator<boost::shared_ptr<apollo::SequenceI> > > > >' requested here add_segment<Combiner>(inter_val, co_val, it_); ^ /home/adamb/local/include/boost/icl/interval_base_map.hpp:966:9: note: in instantiation of function template specialization 'boost::icl::interval_base_map<boost::icl::interval_map<boost::units::quantity<boost::units::unit<boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::heterogeneous_system<boost::units::heterogeneous_system_impl<boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::dalton_mass_base_unit, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::charge_state_base_unit, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> >, boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::dimensionless_type> >, void>, float>, std::set<boost::shared_ptr<apollo::SequenceI>, std::less<boost::shared_ptr<apollo::SequenceI> >, std::allocator<boost::shared_ptr<apollo::SequenceI> > >, boost::icl::partial_absorber, std::less, icl::inplace_plus, icl::inter_section, boost::icl::continuous_interval<boost::units::quantity<boost::units::unit<boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::heterogeneous_system<boost::units::heterogeneous_system_impl<boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::dalton_mass_base_unit, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::charge_state_base_unit, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> >, boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::dimensionless_type> >, void>, float>, less>, std::allocator>, boost::units::quantity<boost::units::unit<boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::heterogeneous_system<boost::units::heterogeneous_system_impl<boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::dalton_mass_base_unit, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::charge_state_base_unit, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> >, boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::dimensionless_type> >, void>, float>, std::set<boost::shared_ptr<apollo::SequenceI>, std::less<boost::shared_ptr<apollo::SequenceI> >, std::allocator<boost::shared_ptr<apollo::SequenceI> > >, boost::icl::partial_absorber, less, inplace_plus, inter_section, boost::icl::continuous_interval<boost::units::quantity<boost::units::unit<boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::heterogeneous_system<boost::units::heterogeneous_system_impl<boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::dalton_mass_base_unit, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::charge_state_base_unit, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> >, boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::dimensionless_type> >, void>, float>, less>, allocator>::add_main<boost::icl::inplace_plus<std::set<boost::shared_ptr<apollo::SequenceI>, std::less<boost::shared_ptr<apollo::SequenceI> >, std::allocator<boost::shared_ptr<apollo::SequenceI> > > > >' requested here add_main<Combiner>(rest_interval, co_val, it_, last_); ^ /home/adamb/local/include/boost/icl/interval_base_map.hpp:314:24: note: in instantiation of function template specialization 'boost::icl::interval_base_map<boost::icl::interval_map<boost::units::quantity<boost::units::unit<boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::heterogeneous_system<boost::units::heterogeneous_system_impl<boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::dalton_mass_base_unit, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::charge_state_base_unit, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> >, boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::dimensionless_type> >, void>, float>, std::set<boost::shared_ptr<apollo::SequenceI>, std::less<boost::shared_ptr<apollo::SequenceI> >, std::allocator<boost::shared_ptr<apollo::SequenceI> > >, boost::icl::partial_absorber, std::less, icl::inplace_plus, icl::inter_section, boost::icl::continuous_interval<boost::units::quantity<boost::units::unit<boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::heterogeneous_system<boost::units::heterogeneous_system_impl<boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::dalton_mass_base_unit, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::charge_state_base_unit, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> >, boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::dimensionless_type> >, void>, float>, less>, std::allocator>, boost::units::quantity<boost::units::unit<boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::heterogeneous_system<boost::units::heterogeneous_system_impl<boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::dalton_mass_base_unit, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::charge_state_base_unit, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> >, boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::dimensionless_type> >, void>, float>, std::set<boost::shared_ptr<apollo::SequenceI>, std::less<boost::shared_ptr<apollo::SequenceI> >, std::allocator<boost::shared_ptr<apollo::SequenceI> > >, boost::icl::partial_absorber, less, inplace_plus, inter_section, boost::icl::continuous_interval<boost::units::quantity<boost::units::unit<boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::heterogeneous_system<boost::units::heterogeneous_system_impl<boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::dalton_mass_base_unit, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::charge_state_base_unit, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> >, boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::dimensionless_type> >, void>, float>, less>, allocator>::_add<boost::icl::inplace_plus<std::set<boost::shared_ptr<apollo::SequenceI>, std::less<boost::shared_ptr<apollo::SequenceI> >, std::allocator<boost::shared_ptr<apollo::SequenceI> > > > >' requested here this->template _add<codomain_combine>(interval_value_pair); ^ /home/adamb/Development/apollo/libapollo/src/theory.cpp:205:15: note: in instantiation of member function 'boost::icl::interval_base_map<boost::icl::interval_map<boost::units::quantity<boost::units::unit<boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::heterogeneous_system<boost::units::heterogeneous_system_impl<boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::dalton_mass_base_unit, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::charge_state_base_unit, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> >, boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::dimensionless_type> >, void>, float>, std::set<boost::shared_ptr<apollo::SequenceI>, std::less<boost::shared_ptr<apollo::SequenceI> >, std::allocator<boost::shared_ptr<apollo::SequenceI> > >, boost::icl::partial_absorber, std::less, icl::inplace_plus, icl::inter_section, boost::icl::continuous_interval<boost::units::quantity<boost::units::unit<boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::heterogeneous_system<boost::units::heterogeneous_system_impl<boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::dalton_mass_base_unit, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::charge_state_base_unit, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> >, boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::dimensionless_type> >, void>, float>, less>, std::allocator>, boost::units::quantity<boost::units::unit<boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::heterogeneous_system<boost::units::heterogeneous_system_impl<boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::dalton_mass_base_unit, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::charge_state_base_unit, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> >, boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::dimensionless_type> >, void>, float>, std::set<boost::shared_ptr<apollo::SequenceI>, std::less<boost::shared_ptr<apollo::SequenceI> >, std::allocator<boost::shared_ptr<apollo::SequenceI> > >, boost::icl::partial_absorber, less, inplace_plus, inter_section, boost::icl::continuous_interval<boost::units::quantity<boost::units::unit<boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::heterogeneous_system<boost::units::heterogeneous_system_impl<boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::dalton_mass_base_unit, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::heterogeneous_system_dim<apollo::units::charge_state_base_unit, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> >, boost::units::list<boost::units::dim<boost::units::mass_base_dimension, boost::units::static_rational<1, 1> >, boost::units::list<boost::units::dim<boost::units::time_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::list<boost::units::dim<boost::units::current_base_dimension, boost::units::static_rational<-1, 1> >, boost::units::dimensionless_type> > >, boost::units::dimensionless_type> >, void>, float>, less>, allocator>::add' requested here msMap.add(segment);

2 1

Using boost to eliminate an ugly facade function
by Chris Stankevitz 29 Aug '12

29 Aug '12

Hello, Can boost help me eliminate the ugly facade function I use below? I have a boost::signals2::signal that passes an object ("CPerson"). I want to connect to this signal not to receive the object ("CPerson") but to receive the result of one of its methods ("CPerson::GetAge()"). Can boost help me with this? If so I'm eager to read and learn about it, I just need to know what it is called. Thank you! Chris //=== #include <boost/signals2/signal.hpp> //---------- // A CPerson offers GetAge() //---------- struct CPerson { int GetAge() const { return 0; } }; //---------- // A CCompany has a boss and a signal // to tell when boss is hired //---------- struct CCompany { CPerson GetBoss() const { return mBoss; } boost::signals2::signal<void(const CPerson&)> BossHired; CPerson mBoss; }; //---------- // A CProcessor processes int ages. // It does not know aobut CPerson //---------- struct CProcessor { void f(int Age) {} }; //---------- // ProcessorFacade is used to strip // an age of a CPerson before // passing the age to CProcessor //---------- void ProcessorFacade(CProcessor& Processor, const CPerson& Person) { Processor.f(Person.GetAge()); } //---------- // main puts it all together //---------- int main() { CCompany Company; CProcessor Processor; // Compiler error: the signal sends an instance of CPerson, // not the result of CPerson::GetAge(). Too bad because // CProcessor does not have know about CPerson // // Company.BossHired.connect( // boost::bind(&CProcessor::f, &Processor, _1)); // So we use an ugly facade instead Company.BossHired.connect( boost::bind(ProcessorFacade, boost::ref(Processor), _1)); return 0; }

3 4

[Graph] compilation error under Windows but not under Linux
by Gaël de Chalendar 29 Aug '12

29 Aug '12

Hello, I have a compilation error under Windows (Visual C++ 2008) with a code that works well under Linux (gcc 4.6.1 and before). The compilation error is: =========== /FsaAccess16.tcc(833) : error C2784: 'std::pair<graph_traits<G>::in_edge_iterator,graph_traits<G>::in_edge_iterator> boost::in_edges(graph_traits<G>::vertex_descriptor,const boost::subgraph<Graph> &)'ÿ: impossible de d‚duire l'argument modŠle pour 'const boost::subgraph<Graph> &' … partir de 'FrCeaLic2m::Common::FsaAccess::selected_graph_types16::spareGraphType' C:\PROGRA~1\boost\BOOST_~1\boost/graph/subgraph.hpp(432)ÿ: voir la d‚claration de 'boost::in_edges' Z: \Projets\MoteurMultimedia\mm_common\src\common/FsaAccess/FsaAccess16.tcc(778)ÿ: lors de la compilation de la fonction membre '<Inconnu>' de la classe <Inconnu> z: \projets\moteurmultimedia\mm_common\src\common\fsaaccess\FsaAccessReader16.h(118)ÿ: voir la r‚f‚rence … l'instanciation de la classe modŠle 'FrCeaLic2m::Common::FsaAccess::FsaAccess16<graphType>' en cours de compilation with [ graphType=FrCeaLic2m::Common::FsaAccess::selected_graph_types16::spareGraphType ] z: \projets\moteurmultimedia\mm_common\src\common\fsaaccess\FsaAccessSpare16.h(35)ÿ: voir la r‚f‚rence … l'instanciation de la classe modŠle 'FrCeaLic2m::Common::FsaAccess::FsaAccessReader16<graphType>' en cours de compilation with [ graphType=FrCeaLic2m::Common::FsaAccess::selected_graph_types16::spareGraphType ] =========== The line that does not compile is boost::tie(iei,ie_end) = boost::in_edges(commonTarget,m_graph); The function being compiled is declared like that: template <typename graphType > std::pair< const typename boost::graph_traits<graphType>::vertex_descriptor, bool > FsaAccess16<graphType>::findEquivalentInRegister( dicoVertexType tempState ){ ... And here graphType, the type of m_graph is spareGraphType defined by: struct selected_graph_types16 { ... typedef boost::adjacency_list<boost::vecS, boost::vecS, boost::directedS, dicoVertexCountProperty> spareGraphType; ... This is a cmake based project that I compile using qtcreator. I'm a Linux developer and I'm a little bit lost with VC outputs and tools under Windows... Regards, Gaêl -- Gael de Chalendar CEA LIST Centre de Fontenay-aux-Roses Laboratoire Vision et Ingénierie des Contenus (Vision and Content Engineering Laboratory) Bat. 38-2 ; 18, rue du Panorama ; BP 6 92265 Fontenay aux Roses Cedex ; France Tél.:01.46.54.80.18 ; Fax.:01.46.54.75.80 Email : Gael.D.O.T.de-Chalendar.A(a)T.cea.D.O.T.fr

2 2

[Locale] inconsistent results for utf-8 collation
by Patrick Ohly 29 Aug '12

29 Aug '12

Hello! When comparing the following UTF-8 string pairs using Boost.Locale (any backend) at the "identical" level (accents are relevant) and a UTF-8 locale (I tried de_DE.utf-8) on Debian Testing (boost 1.49), I get a result that does not make sense to me. "Muller" is considered less than "Müller" (as expected), but "Muller 2" is considered more than "Müller 1", despite the different result for the names alone. Do I have bug in my code, in the underlying libraries or in my expectations? #include <locale.h> #include <boost/locale.hpp> #include <boost/assign/std/vector.hpp> #include <boost/foreach.hpp> #include <boost/assign/list_of.hpp> #include <boost/algorithm/string/join.hpp> #include <iostream> int main(int argc, char **argv) { setlocale(LC_ALL, ""); std::cout << "backends: " << boost::join(boost::locale::localization_backend_manager::global().get_all_backends(), ", ") << std::endl; boost::locale::localization_backend_manager::global().select(argc > 2 ? argv[2] : "icu"); std::locale loc = boost::locale::generator()(argc > 1 ? argv[1] : "de_DE.UTF-8"); typedef boost::tuple<std::string, std::string> string_pair_t; std::vector<string_pair_t> pairs = boost::assign::tuple_list_of("Muller", "Müller") ("Muller 2", "Müller 1") ("Muller B", "Müller A"); BOOST_FOREACH (const string_pair_t &pair, pairs) { const std::string &a = boost::get<0>(pair), &b = boost::get<1>(pair); int cmp = std::use_facet<boost::locale::collator<char> >(loc). compare(boost::locale::collator_base::identical, a, b); std::cout << a << " and " << b << " are " << (cmp == 0 ? "identical" : "different") << " (" << (cmp < 0 ? '<' : cmp > 0 ? '>' : '=') << ")" << std::endl; } return 0; } The output on my system: $ /tmp/mueller de_DE.utf-8 icu backends: icu, posix, std Muller and Müller are different (<) Muller 2 and Müller 1 are different (>) Muller B and Müller A are different (>) Bye, Patrick

2 2

using boost with net-snmp
by Ashish Lal 29 Aug '12

29 Aug '12

Hi, I am trying to integrate net-snmp using AgentX into a C++ app which uses boost libraries extensively. Has anyone integrated net-snmp with boost's ASIO based event loop? Appreciate any help and pointers.

1 0

query about multi_linestring in boost::geometry
by rakesh patil 29 Aug '12

29 Aug '12

Hello, I am planning to make use of multi_linestring in my application. Before that I have some queries, for which I'm running short of answers. Here are few questions 1. Is it possible to redistribute the number of points in a particular linestring of a multi_linestring variable? 2. Is it possible to split one linestring into two linestrings and store them in the same multi_linestring variable? 3. In regards to point 2, is it possible to merge two different linestrings within a multi_linestring variable and make a single linestring instead of two? If possible, can any one provide any reference to some links, or some examples? Thanks

1 0