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[BGL] kamada_kawai_spring_layout
by Federico J. Fernández 25 Feb '09

25 Feb '09

Hi List, I'm trying to migrate some code from Graphviz to BGL Layout algorithms, but I don't know if the following feature is supported in the kamada_kawai_spring_layout. I want to "pin" or "stick" some nodes while letting the algorithm layout the rest of the graph. Is it possible? Thanks. -- federico

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sparse matrix resize()
by Ernest Turro 25 Feb '09

25 Feb '09

Hi, I've noticed that resize() with data preservation is not implemented for sparse matrices (matrix_sparse.hpp:2791). Does anyone have any suggestions on how to get around that? Many thanks, Ernest Run-time error: Check failed in file /opt/local/include/boost/numeric/ublas/ matrix_sparse.hpp at line 2791: !preserve terminate called after throwing an instance of 'boost::numeric::ublas::internal_logic' what(): internal logic Abort trap

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ERROR: `boost::archive::ARCHIVE_VERSION'
by niranjan bangera 25 Feb '09

25 Feb '09

Hi all, Boost Version: 1.38.0 ========== Compiler:/_TOOLS_/dist/gnu-gcc-/4.1.1-binutils-2.16.1/x86_64-pc-linux2.4/bin/gcc ====== While running my test case i am getting following ERROR, I know this is linking Error, Please Help me to remove this. ERROR: ====== test.o: In function `boost::serialization::detail::extended_type_info_typeid_0::extended_type_info_typeid_0()': test.cpp:(.text._ZN5boost13serialization6detail27extended_type_info_typeid_0C2Ev[boost::serialization::detail::extended_type_info_typeid_0::extended_type_info_typeid_0()]+0x7): undefined reference to `boost::serialization::detail::extended_type_info_typeid_0::type_info_key' test.o: In function `boost::archive::detail::common_iarchive<boost::archive::text_iarchive>::common_iarchive()': test.cpp:(.text._ZN5boost7archive6detail15common_iarchiveINS0_13text_iarchiveEEC2Ev[boost::archive::detail::common_iarchive<boost::archive::text_iarchive>::common_iarchive()]+0xd): undefined reference to `boost::archive::detail::basic_iarchive::basic_iarchive()' test.o: In function `boost::archive::detail::common_iarchive<boost::archive::text_iarchive>::init()': test.cpp:(.text._ZN5boost7archive6detail15common_iarchiveINS0_13text_iarchiveEE4initEv[boost::archive::detail::common_iarchive<boost::archive::text_iarchive>::init()]+0x2f): undefined reference to `boost::archive::ARCHIVE_SIGNATURE' test.cpp:(.text._ZN5boost7archive6detail15common_iarchiveINS0_13text_iarchiveEE4initEv[boost::archive::detail::common_iarchive<boost::archive::text_iarchive>::init()]+0xd0): undefined reference to `boost::archive::ARCHIVE_VERSION' test.o: In function `boost::serialization::extended_type_info_typeid<Myclass const>::extended_type_info_typeid()': test.cpp:(.text._ZN5boost13serialization25extended_type_info_typeidIKN3ddr3DDREEC1Ev[boost::serialization::extended_type_info_typeid<Myclass const>::extended_type_info_typeid()]+0x23): undefined reference to `boost::serialization::extended_type_info::self_register()' test.o: In function `boost::archive::detail::common_oarchive<boost::archive::text_oarchive>::init()': test.cpp:(.text._ZN5boost7archive6detail15common_oarchiveINS0_13text_oarchiveEE4initEv[boost::archive::detail::common_oarchive<boost::archive::text_oarchive>::init()]+0x14): undefined reference to `boost::archive::ARCHIVE_SIGNATURE' test.cpp:(.text._ZN5boost7archive6detail15common_oarchiveINS0_13text_oarchiveEE4initEv[boost::archive::detail::common_oarchive<boost::archive::text_oarchive>::init()]+0x85): undefined reference to `boost::archive::ARCHIVE_VERSION' test.o: In function `boost::archive::detail::common_oarchive<boost::archive::text_oarchive>::common_oarchive()': test.cpp:(.text._ZN5boost7archive6detail15common_oarchiveINS0_13text_oarchiveEEC2Ev[boost::archive::detail::common_oarchive<boost::archive::text_oarchive>::common_oarchive()]+0xd): undefined reference to `boost::archive::detail::basic_oarchive::basic_oarchive()' collect2: ld returned 1 exit status make[1]: *** [test] Error 1 make[1]: Leaving directory `test/TEST' make: *** [check-am] Error 2 Thanks, Niranjan

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symbian port?
by Gustavo Garcia Bernardo 25 Feb '09

25 Feb '09

Is it possible to build boost libraries for the symbian platform? Thank you, G.

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[boost-users][StateChart] event creation/destruction
by Igor R 25 Feb '09

25 Feb '09

Hello, In my application I use a few async state-machines with lots of events. I'd like to trace some events construction/destruction balance, so I define them as follows: volatile long eventCount; template<class MostDerived> struct EvBase : sc::event<MostDerived> { EvBase() { long c = InterlockedIncrement(&eventCount); somelog << c << std::endl; } ~EvBase() { long c = InterlockedDecrement(&eventCount); somelog << c << std::endl; } }; // inherit EvBase directly struct Ev1 : EvBase<Ev1> {}; struct Ev2 : EvBase<Ev2> {}; struct Ev3 : EvBase<Ev3> {}; // inherit EvBase indirectly template<class MostDerived> struct EvIntermediate : EvBase<MostDerived> {}; struct Ev4 : EvIntermediate<Ev4> {}; When I run the application, I see that at some stage the counter goes negative, and its tendency is to get more and more negative. I guess I don't realize something important about the sc::event, so I'd appreciate enlightment on this. Thanks, Igor'.

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Re: [Boost-users] [accumulators] Strange behavior while extracting min using UDT
by dhruva 25 Feb '09

25 Feb '09

Hello, I found the solution. I had to specialize the min and max as follows for my UDT. It now works as it always did :) acc_sample std::numeric_limits<acc_sample>::min() { return (acc_sample(1000, std::numeric_limits<double>::min())); } acc_sample std::numeric_limits<acc_sample>::max() { return (acc_sample(1000, std::numeric_limits<double>::max())); } -dhruva From Chandigarh to Chennai - find friends all over India. Go to http://in.promos.yahoo.com/groups/citygroups/

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[accumulators] Strange behavior while extracting min using UDT
by dhruva 25 Feb '09

25 Feb '09

Hi, The following code when compiled by defining UDT will use a UDT as Sample (without the define, will use double). Some part of code is creating an object (when UDT) is used as acc_sample(0) and that is shown in min. In the following example, I am adding 3 samples and the count confirms that. However, on extracting the min, I get a value that I have not added (and this is created by the following call stack on windows XP using MSVC 2005) ntdll.dll!_DbgBreakPoint@0() acc.exe!acc_sample::acc_sample(double v=0.00000000000000000) Line 35 C++ > acc.exe!std::numeric_limits<acc_sample>::max() Line 109 + 0x10 bytes C++ acc.exe!boost::numeric::functional::as_max_base<acc_sample const ,void>::operator()(const acc_sample & __formal={...}) Line 302 + 0x9 bytes C++ acc.exe!boost::detail::function1<boost::numeric::functional::as_max<boost::mpl::arg<-1>,boost::numeric::functional::tag<boost::mpl::arg<-1> > > >::operator()<acc_sample>(const acc_sample & a0={...}) Line 69 + 0x10 bytes C++ acc.exe!boost::accumulators::impl::min_impl<acc_sample>::min_impl<acc_sample><boost::parameter::aux::arg_list<boost::parameter::aux::tagged_argument<boost::accumulators::tag::accumulator,boost::accumulators::accumulator_set<acc_sample,boost::accumulators::features<boost::accumulators::tag::count,boost::accumulators::tag::min,boost::accumulators::tag::min,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na>,void> >,boost::parameter::aux::empty_arg_list> >(const boost::parameter::aux::arg_list<boost::parameter::aux::tagged_argument<boost::accumulators::tag::accumulator,boost::accumulators::accumulator_set<acc_sample,boost::accumulators::features<boost::accumulators::tag::count,boost::accumulators::tag::min,boost::accumulators::tag::min,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na>,void> >,boost::parameter::aux::empty_arg_list> & args={...}) Line 38 C++ acc.exe!boost::accumulators::detail::accumulator_wrapper<boost::accumulators::impl::min_impl<acc_sample>,boost::accumulators::tag::min>::accumulator_wrapper<boost::accumulators::impl::min_impl<acc_sample>,boost::accumulators::tag::min><boost::parameter::aux::arg_list<boost::parameter::aux::tagged_argument<boost::accumulators::tag::accumulator,boost::accumulators::accumulator_set<acc_sample,boost::accumulators::features<boost::accumulators::tag::count,boost::accumulators::tag::min,boost::accumulators::tag::min,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na>,void> >,boost::parameter::aux::empty_arg_list> >(const boost::parameter::aux::arg_list<boost::parameter::aux::tagged_argument<boost::accumulators::tag::accumulator,boost::accumulators::accumulator_set<acc_sample,boost::accumulators::features<boost::accumulators::tag::count,boost::accumulators::tag::min,boost::accumulators::tag::min,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na>,void> >,boost::parameter::aux::empty_arg_list> & args={...}) Line 284 C++ acc.exe!boost::accumulators::detail::build_acc_list<boost::fusion::mpl_iterator<boost::mpl::v_iter<boost::mpl::vector2<boost::accumulators::detail::accumulator_wrapper<boost::accumulators::impl::count_impl,boost::accumulators::tag::count>,boost::accumulators::detail::accumulator_wrapper<boost::accumulators::impl::min_impl<acc_sample>,boost::accumulators::tag::min> >,1> >,boost::fusion::mpl_iterator<boost::mpl::v_iter<boost::mpl::vector2<boost::accumulators::detail::accumulator_wrapper<boost::accumulators::impl::count_impl,boost::accumulators::tag::count>,boost::accumulators::detail::accumulator_wrapper<boost::accumulators::impl::min_impl<acc_sample>,boost::accumulators::tag::min> >,2> >,0>::call<boost::parameter::aux::arg_list<boost::parameter::aux::tagged_argument<boost::accumulators::tag::accumulator,boost::accumulators::accumulator_set<acc_sample,boost::accumulators::features<boost::accumulators::tag::count,boost::accumulators::tag::min,boost::accumulators::tag::min,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na>,void> >,boost::parameter::aux::empty_arg_list> >(const boost::parameter::aux::arg_list<boost::parameter::aux::tagged_argument<boost::accumulators::tag::accumulator,boost::accumulators::accumulator_set<acc_sample,boost::accumulators::features<boost::accumulators::tag::count,boost::accumulators::tag::min,boost::accumulators::tag::min,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na>,void> >,boost::parameter::aux::empty_arg_list> & args={...}, const boost::fusion::mpl_iterator<boost::mpl::v_iter<boost::mpl::vector2<boost::accumulators::detail::accumulator_wrapper<boost::accumulators::impl::count_impl,boost::accumulators::tag::count>,boost::accumulators::detail::accumulator_wrapper<boost::accumulators::impl::min_impl<acc_sample>,boost::accumulators::tag::min> >,1> > & f={...}, const boost::fusion::mpl_iterator<boost::mpl::v_iter<boost::mpl::vector2<boost::accumulators::detail::accumulator_wrapper<boost::accumulators::impl::count_impl,boost::accumulators::tag::count>,boost::accumulators::detail::accumulator_wrapper<boost::accumulators::impl::min_impl<acc_sample>,boost::accumulators::tag::min> >,2> > & l={...}) Line 215 + 0xc bytes C++ acc.exe!boost::accumulators::detail::build_acc_list<boost::fusion::mpl_iterator<boost::mpl::v_iter<boost::mpl::vector2<boost::accumulators::detail::accumulator_wrapper<boost::accumulators::impl::count_impl,boost::accumulators::tag::count>,boost::accumulators::detail::accumulator_wrapper<boost::accumulators::impl::min_impl<acc_sample>,boost::accumulators::tag::min> >,0> >,boost::fusion::mpl_iterator<boost::mpl::v_iter<boost::mpl::vector2<boost::accumulators::detail::accumulator_wrapper<boost::accumulators::impl::count_impl,boost::accumulators::tag::count>,boost::accumulators::detail::accumulator_wrapper<boost::accumulators::impl::min_impl<acc_sample>,boost::accumulators::tag::min> >,2> >,0>::call<boost::parameter::aux::arg_list<boost::parameter::aux::tagged_argument<boost::accumulators::tag::accumulator,boost::accumulators::accumulator_set<acc_sample,boost::accumulators::features<boost::accumulators::tag::count,boost::accumulators::tag::min,boost::accumulators::tag::min,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na>,void> >,boost::parameter::aux::empty_arg_list> >(const boost::parameter::aux::arg_list<boost::parameter::aux::tagged_argument<boost::accumulators::tag::accumulator,boost::accumulators::accumulator_set<acc_sample,boost::accumulators::features<boost::accumulators::tag::count,boost::accumulators::tag::min,boost::accumulators::tag::min,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na>,void> >,boost::parameter::aux::empty_arg_list> & args={...}, const boost::fusion::mpl_iterator<boost::mpl::v_iter<boost::mpl::vector2<boost::accumulators::detail::accumulator_wrapper<boost::accumulators::impl::count_impl,boost::accumulators::tag::count>,boost::accumulators::detail::accumulator_wrapper<boost::accumulators::impl::min_impl<acc_sample>,boost::accumulators::tag::min> >,0> > & f={...}, const boost::fusion::mpl_iterator<boost::mpl::v_iter<boost::mpl::vector2<boost::accumulators::detail::accumulator_wrapper<boost::accumulators::impl::count_impl,boost::accumulators::tag::count>,boost::accumulators::detail::accumulator_wrapper<boost::accumulators::impl::min_impl<acc_sample>,boost::accumulators::tag::min> >,2> > & l={...}) Line 215 + 0x2e bytes C++ acc.exe!boost::accumulators::detail::make_acc_list<boost::mpl::vector2<boost::accumulators::detail::accumulator_wrapper<boost::accumulators::impl::count_impl,boost::accumulators::tag::count>,boost::accumulators::detail::accumulator_wrapper<boost::accumulators::impl::min_impl<acc_sample>,boost::accumulators::tag::min> >,boost::parameter::aux::arg_list<boost::parameter::aux::tagged_argument<boost::accumulators::tag::accumulator,boost::accumulators::accumulator_set<acc_sample,boost::accumulators::features<boost::accumulators::tag::count,boost::accumulators::tag::min,boost::accumulators::tag::min,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na>,void> >,boost::parameter::aux::empty_arg_list> >(const boost::mpl::vector2<boost::accumulators::detail::accumulator_wrapper<boost::accumulators::impl::count_impl,boost::accumulators::tag::count>,boost::accumulators::detail::accumulator_wrapper<boost::accumulators::impl::min_impl<acc_sample>,boost::accumulators::tag::min> > & seq={...}, const boost::parameter::aux::arg_list<boost::parameter::aux::tagged_argument<boost::accumulators::tag::accumulator,boost::accumulators::accumulator_set<acc_sample,boost::accumulators::features<boost::accumulators::tag::count,boost::accumulators::tag::min,boost::accumulators::tag::min,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na>,void> >,boost::parameter::aux::empty_arg_list> & args={...}) Line 234 + 0x2f bytes C++ acc.exe!boost::accumulators::accumulator_set<acc_sample,boost::accumulators::features<boost::accumulators::tag::count,boost::accumulators::tag::min,boost::accumulators::tag::min,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na>,void>::accumulator_set<acc_sample,boost::accumulators::features<boost::accumulators::tag::count,boost::accumulators::tag::min,boost::accumulators::tag::min,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na,boost::mpl::na>,void>() Line 146 + 0x31 bytes C++ acc.exe!main(int argc=1, char * * argv=0x00033b18) Line 96 C++ acc.exe!__tmainCRTStartup() Line 327 + 0x12 bytes C kernel32.dll!_BaseProcessStart@4() + 0x23 bytes // Sample code starts #include <stdio.h> #include <iostream> #include <vector> #include <boost/accumulators/accumulators.hpp> #include <boost/accumulators/statistics/stats.hpp> #include <boost/accumulators/statistics/count.hpp> #include <boost/accumulators/statistics/min.hpp> #include <boost/accumulators/statistics/max.hpp> using namespace std; namespace bacc = boost::accumulators; using namespace bacc; typedef struct { size_t _time; double _value; } time_val_t; /* Wrapper class as I cannot modify time_val_t */ class acc_sample { public: time_val_t _data; acc_sample() { _data._time = 0; _data._value = 0.0; } /* This should never get called: limits is creating an object with 0 * and this object gets extracted as min */ acc_sample(double v) { abort(); } acc_sample(time_t t, double v) { _data._time = t; _data._value = v; } acc_sample(const time_val_t &i) { _data._time = i._time; _data._value = i._value; } acc_sample(const acc_sample &i) { _data._time = i._data._time; _data._value = i._data._value; } bool operator < (const acc_sample &rhs) const { return _data._value < rhs._data._value; } bool operator > (const acc_sample &rhs) const { return _data._value > rhs._data._value; } bool operator == (const acc_sample &rhs) const { return _data._value == rhs._data._value; } bool operator != (const acc_sample &rhs) const { return _data._value != rhs._data._value; } }; int main(int argc, char *argv[]) { #ifdef UDT typedef acc_sample sample_type; sample_type s1(10, 100); sample_type s2(11, 101); sample_type s3(12, 102); sample_type res; #else typedef int sample_type; sample_type s1 = 100; sample_type s2 = 101; sample_type s3 = 102; sample_type res; #endif #if 0 if (s1 == s1) cout << "==" << endl; if (s1 < s2) cout << "<" << endl; if (s2 > s1) cout << ">" << endl; #endif accumulator_set< sample_type, features< tag::count, tag::max, tag::min > > acc; acc(s1); acc(s2); acc(s3); size_t sz = extract_result< tag::count >(acc); cout << "Count:" << sz << endl; res = extract_result< tag::max >(acc); #ifdef UDT cout << "Max: [" << res._data._time << "," << res._data._value << "]" << endl; #else cout << "Max: [" << res << "]" << endl; #endif res = extract_result< tag::min >(acc); #ifdef UDT cout << "Min: [" << res._data._time << "," << res._data._value << "]" << endl; #else cout << "Min: [" << res << "]" << endl; #endif return 0; } // Sample code ends Looking for any help or leads would be of real help. regards, -dhruva Check out the all-new Messenger 9.0! Go to http://in.messenger.yahoo.com/

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[Newbie] How to create a class member thread
by Daniele Barzotti 25 Feb '09

25 Feb '09

Hi, I'm sure the question is very banal... I have a thread object stored in a class: class MyClass { private: void Init(); boost::thread _thread; } How can I create it in the implementation code? MyClass::Init() { // start thread here... } Tnx. Daniele.

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[interprocess] and mixed endianness trouble
by Ivan Kharin 25 Feb '09

25 Feb '09

My software is a plug-in for Photoshop compatible image editors. For some reasons (third-party lib problems with re-initialize in same process) software was splitted to "Thunk" (loaded into host process) and "Main" (started as separated process) modules. Last days I was busy trying to replace socket-based data exchange with boost.interprocess And encountered a BIG PROBLEM: Non-universal binary host runs under PowerPC-emulation (as well as my universal-binary "Thunk"), but "Main" executes x86 code. Two different processors -- x86 and emulated PowerPC -- have access to interprocess_* private uint32_t's, treating memory as MSB (PowerPC) and LSB (x86) simultaneously. Any ideas? -- Ivan Kharin

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[Q] shared_ptr less than operator for std::set
by V S P 25 Feb '09

25 Feb '09

I am trying to use shared_ptr in std::set and std::vector. For std::set I was expecting that when I define a less than comparasing operation in my class (wrapped by shared ptr) -- it would actually get invoked. Instead I think it is the less than of the shared_ptr that is being invoked So I do not get the ordering I expect in my std::set container. Therefore wanted to ask -- how can it be done, that the operator.< of my class and not the shared_ptr's is being used by std::set I searched for posting on this subject but did not come up with the solution. Only discussions about the details of pointer comparasing http://aspn.activestate.com/ASPN/Mail/Message/boost/1863117 VSP -- V S P toreason(a)fastmail.fm -- http://www.fastmail.fm - Same, same, but different...

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