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[program_options] Custom validate for asio endpoints
by Ryan McConnehey 30 Oct '09

30 Oct '09

I'm trying to validate an ip address and port that is being passed in through the command line arguments. I could retrieve the string and do the validation outside program options. I thought it would be better to use the custom validate function shown in the documentation. I'm trying to retrieve the information as a boost::asio::ip::udp::endpoint. Even after creating the validate function the compiler is complaining that there is no user defined function or stream operator. I've include some code to show what I'm doing. Any help would be great. Ryan class CommandLine { static void validate(boost::any & v, std::vector<std::string> const& values) { using namespace boost::program_options; // Make sure no previous assignment to 'v' was made. validators::check_first_occurrence(v); // Extract the first string from 'values'. If there is more than // one string, it's an error, and exception will be thrown. std::string const& s = validators::get_single_string(values); // Do regex match and convert the interesting part to int. if (validIPandPort(s)) { v = boost::any(createEndpoint(s)); } else { throw validation_error("invalid value"); } } static ApplicationArguments process(const int argc, char * argv[]) { ApplicationArguments returnApplicationArguments; //Create an options menu with all parameters allowed, to be passed in through the command line arguments. boost::program_options::options_description menu("Usage: program.exe -a ip:port,ip:port -r ip:port,ip:port\nOptions:"); menu.add_options() ("ip1,a" , boost::program_options::value<boost::asio::ip::udp::endpoint>() , "description") ("ip2,r" , boost::program_options::value<boost::asio::ip::udp::endpoint>() , "description") ; //Process the command line arguments and place them in a map. boost::program_options::variables_map vm; boost::program_options::store(boost::program_options::parse_command_line(argc, argv, menu), vm); boost::program_options::notify(vm); return returnApplicationArguments; } }; static void validate(boost::any & v, std::vector<std::string> const& values, boost::asio::ip::udp::endpoint * target_type, int) { CommandLine::validate(v, values); }

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Change return type automatically
by Surya Kiran Gullapalli 30 Oct '09

30 Oct '09

Hello, I've a class with multiple boost signals like this class A { private: boost::signal<void()> m_voidSignal ; boost::signal<void (const string&)> m_stringSignal ; public: boost::signal<void()>& voidSignal() { return m_voidSignal ; } boost::signal<void (const string&)>& stringSignal { return m_stringSignal ; } } ; when i'm connecting signals to slots, I do some thing like this. A a; a.voidSignal().connect (...) ; This works fine. But I've many signals with different signatures. what I want to achieve is a single interface where I want to map every signal to enums and access signal from the enums like this. class A { public: typedef enum { VoidSignal, StringSignal ... } ; SignalIds ; // return type should be deducted automatically from the enum ReturnType& getSignal (SignalId) ; ... } ; So that I can do some thing like this A a; a.getSignal (A::VoidSignal).connect (...) ; a.getSignal (A::StringSignal).connect (...) ; Basically with a single interface, I want to change the return type automatically. Can I achieve something like this with any of the boost libraries (mpl, fusion etc) ? Any pointers on this would be of great help. Thanks, Surya

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building some boost libs for Windows ce
by Frank Black 30 Oct '09

30 Oct '09

Hi, I want to build two libs, statechart and signals, for Windows CE using MSVC 8.0. I have found suprisingly little info on how to accomplish this, and I wonder if anyone has done this before and have any configuration files I could refer to, to save some time (I really don't know much about bjam)? Thanks!

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[Spirit] Grammar rule problem
by Dylan Klomparens 30 Oct '09

30 Oct '09

Hello, I'm writing a configuration file parser with boost::spirit, and have encountered some strange errors. The errors are: 1) error C2078: too many initializers (in file assign_actor.hpp, line 62) 2) error C2440: 'initializing' : cannot convert from 'const iterator_t ' to 'value_type' (in file assign_actor.hpp, line 62) The line that's causing the error is identical (in concept) to the one above. Why is it generating an error? The code I'm using is below. Rule "two" is generating the error. #include <iostream> #include <boost/spirit.hpp> using namespace std; int main() { using namespace boost::spirit; const int UnsignedCharacterMaximum = (numeric_limits<unsigned char>::max)(); const int UnsignedShortMaximum = (numeric_limits<unsigned short>::max)(); rule<> octet_p = limit_d(0, UnsignedCharacterMaximum)[int_p]; rule<> ip_address_p = octet_p >> ch_p('.') >> octet_p >> ch_p('.') >> octet_p >> ch_p('.') >> octet_p; rule<> network_port_p = limit_d(0, UnsignedShortMaximum - 1)[int_p]; string s; int i; rule<> one = ip_address_p[assign_a(s)]; rule<> two = network_port_p[assign_a(i)]; // Commenting this line gets rid of the error. // But this line should work. It is identical (in conecpt) to the previous line. cout << parse("192.168.0.1", one).full << endl; return 0; }

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BGL - VertexList of adjacency_list = boost::setS?
by Ondrej Sluciak 30 Oct '09

30 Oct '09

Is there some reason why the vertexlist parameter of adjacency_list cannot be of "setS" type? If I do something like: typedef boost::adjacency_list<boost::listS,boost::setS> Graph; Graph g; boost::add_edge(0,1, g); I always get this error: Error 1 error C2664: 'std::pair<_Ty1,_Ty2> boost::add_edge<boost::detail::adj_list_gen<Graph,VertexListS,OutEdgeListS,DirectedS,VertexProperty,EdgeProperty,GraphProperty,EdgeListS>::config>(void *,void *,boost::directed_graph_helper<Config> &)' : cannot convert parameter 2 from 'int' to 'void *' c:\mycode\boosttest\boosttest\boosttest.cpp 18 If I change it to vecS, then it works. I know the std::set is somehow different from vector or list, but since I don't understand it so well, I don't know why the vertexList cannot be setS, and for example OutEdgeList (1st parameter of adjacency_list) can. Thanks for clarifynig.

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[REGEX] seg fault
by John Robertson 30 Oct '09

30 Oct '09

When running the credit_card snippet in gdb I get. Program received signal SIGSEGV, Segmentation fault. 0x00002ac3263b38f2 in boost::re_detail::cpp_regex_traits_implementation<char>::lookup_classname_imp () from /usr/lib64/libboost_regex.so.2 I'm using BOOST_VERSION 103900 Thanks -JR

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program_options wchar_t support (again)
by Yang Zhang 30 Oct '09

30 Oct '09

Last mentioned I could find was 5 years ago: http://lists.boost.org/Archives/boost/2004/02/61057.php Has this been fixed? -- Yang Zhang http://www.mit.edu/~y_z/

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Incorrect parameters problem
by Mathew Benson 30 Oct '09

30 Oct '09

My project was compiling and executing, but I get an error now. I'm not sitting at my desk right now, but I think it said "Incorrect parameters" when I examine the error. Here's the offending code: boost::asio::io_service io_service; using boost::asio::ip::udp; udp::socket s(io_service, udp::endpoint(udp::v4(), 0)); udp::resolver resolver(io_service); udp::resolver::query query(udp::v4(), "127.0.0.1", 606); try { udp::resolver::iterator iterator = resolver.resolve(query); s.send_to(boost::asio::buffer(buffer, size), *iterator); } catch ( std::exception& e ) { std::cout << e.what() << std::endl; } The first line in the try block is what causes the exception. I thought I backed out all my changes, but I still can't get it to work. Can somebody tell me what obvious dumb mistake I made?

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[Serialization] XML serialization of class with abstract template ancestors
by Terry Roberts 30 Oct '09

30 Oct '09

Hi, I'm having some trouble using the Serialization library with a class derived from an abstract template (example code below). What I'd like to do is serialize instances of the derived type through a base class pointer (polymorphic) using the XML archive. The code below works fine using both the text and binary archives, but fails at runtime with the XML archive. The exception thrown is boost::archive::xml_archive_exception with the message "uninitialized exception". My environment: GCC 4.1.2 on RHEL 5.3 Boost v1.37 I've also attempted to use Boost 1.40 (although I didn't see anything to suggest relevant changes), which results in link errors (undefined references to members of boost::archive::detail::archive_serializer_map<boost::archive::xml_iarchive> and boost::serialization::void_cast_detail::void_caster among others). Any help would be appreciated. Thanks. #include <iostream> #include <string> #include <sstream> #include <boost/serialization/serialization.hpp> #include <boost/archive/xml_iarchive.hpp> #include <boost/archive/xml_oarchive.hpp> #include <boost/serialization/export.hpp> class AbstractBase { public: AbstractBase(const std::string& n):name(n) {} virtual ~AbstractBase() {} virtual std::ostream& print(std::ostream& os) const = 0; protected: AbstractBase():name("UNKNOWN BASE") {} friend class boost::serialization::access; template<class Archive> void serialize(Archive& ar, const uint32_t version) { ar & BOOST_SERIALIZATION_NVP(name); } std::string name; }; template <class T> class AbstractTemplate : public AbstractBase { public: AbstractTemplate(const std::string& n):AbstractBase(n) {} virtual ~AbstractTemplate() {} virtual void doSomething(const T& t) = 0; protected: AbstractTemplate():AbstractBase("UKNOWN TEMPLATE") {} friend class boost::serialization::access; template<class Archive> void serialize(Archive& ar, const uint32_t version) { ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(AbstractBase); } }; class Derived : public AbstractTemplate<std::string> { public: Derived(const std::string& n):AbstractTemplate<std::string>(n) {} virtual ~Derived() {} std::ostream& print(std::ostream& os) const { return os << "Derived name: " << name << std::endl; } void doSomething(const std::string& str) { print(std::cout << str << ": "); } protected: Derived():AbstractTemplate<std::string>("UNKNOWN DERIVED") {} friend class boost::serialization::access; template<class Archive> void serialize(Archive& ar, const uint32_t version) { ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(AbstractTemplate<std::string>); } }; BOOST_CLASS_EXPORT(Derived) namespace boost { template <> struct is_abstract<AbstractBase > { typedef mpl::bool_<true> type; BOOST_STATIC_CONSTANT(bool, value = true); }; template<class T> struct is_abstract<AbstractTemplate<T> > { typedef mpl::bool_<true> type; BOOST_STATIC_CONSTANT(bool, value = true); }; } // namepsace boost int main(int argc, char** argv) { static const char XML_NAME[] = "Stuff"; Derived* d = new Derived("test 1"); AbstractTemplate<std::string>* at = d; AbstractBase* ab = d; std::cout << "before serialization:" << std::endl; d->doSomething("something"); at->print(std::cout); ab->print(std::cout); /* serialization */ std::stringstream ss; { boost::archive::xml_oarchive xmlOut(ss); xmlOut << boost::serialization::make_nvp(XML_NAME, ab); } delete ab; ab = NULL; std::cout << "Serialization:" << std::endl << ss.str() << std::endl; /* deserialization */ { boost::archive::xml_iarchive xmlIn(ss); xmlIn >> boost::serialization::make_nvp(XML_NAME, ab); } at = dynamic_cast<AbstractTemplate<std::string>*>(ab); d = dynamic_cast<Derived*>(ab); if ((ab == NULL) || (at == NULL) || (d == NULL)) { std::cout << "deserialization failed" << std::endl; return EXIT_FAILURE; } std::cout << "after deserialization:" << std::endl; d->doSomething("something"); at->print(std::cout); ab->print(std::cout); delete ab; return EXIT_SUCCESS; }

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Compile warnings
by HT4N - 30 Oct '09

30 Oct '09

When I compile the boost spirit with VisualStudio I got the following warnings. Is this a known issue/bug? /* c:\src\indexserve2\private\shared\boost\spirit\tree\impl\tree_to_xml.ipp(66) : warning C4996: 'std::ctype<wchar_t>::wide Function call with parameters that may be unsafe - this call relies on the caller to check that the passed values are correct. To disable this warning, use -D_SCL_SECURE_NO_WARNINGS. See documentation on how to use Visual C++ 'Checked Iterators' */ #pragma warning(disable:4996) /* c:\src\indexserve2\private\shared\boost\spirit\tree\parse_tree.hpp(213) : warning see reference to class template instantiation 'boost::spirit::skip_parser_iteration_policy<ParserT>' being compiled c:\src\indexserve2\private\shared\boost\spirit\core\scanner\skipper.hpp(147) : warning C4512: 'boost::spirit::skip_parse r_iteration_policy<ParserT>' : assignment operator could not be generated */ #pragma warning(disable:4512) _________________________________________________________________ Windows 7: It helps you do more. Explore Windows 7. http://www.microsoft.com/Windows/windows-7/default.aspx?ocid=PID24727::T:WL…

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[lambda] delayed assignment to a member
by Igor R 29 Oct '09

29 Oct '09

Hello, How can I create a functor, which would assign to a member variable, when invoked? I mean, something like this: int member_; //... lambda::bind(my_obj::member_, this, 5); The above bind itself compiles, but if I try to invoke it or to assign to a function<void()>, it doesn't compile. Thanks.

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[getting IP-header]How do I get the IP-header information
by Mats Carlsson 29 Oct '09

29 Oct '09

Hello, I'm trying to get the IP-header information from an IP-message sent using boost. I can get the message itself by using: void Receiver::wait_for_packet() { socket.async_receive_from(boost::asio::buffer(receive_buffer), remote_endpoint, boost::bind( &Receiver::handle_packet, this, boost::asio::placeholders::error, boost::asio::placeholders::bytes_transferred)); } void Receiver::handle_packet(const boost::system::error_code& error, int bytes_transferred) { if (error) { //throw boost::system::system_error(error); } std::string message; for (int i = 0; i < bytes_transferred; i++) { message += receive_buffer[i]; } std::string payload(message); Packet packet; packet.set_payload(payload); listener->new_packet_received(packet); wait_for_packet(); } Where "message" is the body of the sent stuff. But how do I get to the IP-header things? I've been looking in doc/html/boost_asio/example/serialization/connection.hpp, but do not really get what to do. BR, /Mats Carlsson

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asynch_write fails when used to write long data
by A.Agrawal＠patrick.com.au 29 Oct '09

29 Oct '09

Hi, I have a Client (windows) - server (linux) program which uses boost::asio asynch methods. I am getting error when server writes to client using asynch_write and data is large with size greater than a particular value. ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// std::vector<boost::asio::const_buffer> _buffers; _buffers.push_back(boost::asio::buffer(outbound_header)); _buffers.push_back(boost::asio::buffer(outbound_message)); _buffers.push_back(boost::asio::buffer(outbound_data)); boost::asio::async_write(_socket, _buffers, boost::bind(&ClientSession::handle_write, this, boost::asio::placeholders::error)); ///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// here outbound_header is of type string of length 8 and has value " 202e5" outbound_message is of type string of length 8 and has value " 2" outbound_data when of length 131813. I get error with error_code - val = 14 (Bad Address) If I reduce the outbound_data size to 130812, everything is fine. I am unable to figure out the problem, I thought I can send unlimited size data in a single call. Please advise if you have any idea. I will be more than happy to provide you with information that you may need. Regards, Anil Agrawal PTS

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[Interprocess] Using shared Memory with different compilers (msvc, mingw)
by BaDBuTz 29 Oct '09

29 Oct '09

hi, My library uses boost::interprocess' Shared Memory and has to be delivered with msvc(7.1) and mingw compiled versions. Every instance of the that library opens a connection to the Shared Memory "sharedMemoryMapTest" and communicates via instances of the class "SyncObject". In my test program ProcessA opens the shared memory, instanciates a SynObject with the identifyer String "id1". ProcessB connects to the same SyncObject and synchronizes with ProcessA. If ProcessA and ProcessB are both compiled with the same compiler it works fine. If one process is compiled with mscv and the other is compiled with mingw it fails. (mscv = ProcessA, ProcessB = mingw -> I read my Windows environment variables instead of "id1") Did I make a mistake in my implementation, or is it simply not possible to access the same Shmem with different compiled versions? Thanks in advance Martin (compilable) code: #include <iostream> #include <boost/interprocess/managed_shared_memory.hpp> #include <boost/interprocess/allocators/allocator.hpp> #include <boost/interprocess/containers/string.hpp> #include <boost/interprocess/containers/list.hpp> typedef unsigned long U32; using namespace boost::interprocess; class SyncObject { public: SyncObject(std::string aId) : id(aId), locAddrSp0Range(0), locAddrSp0Remap(0), locAddrSp1Range(0), locAddrSp1Remap(0), usbInterfaceOwner(0), useCounter(0) {} ; ~SyncObject() { std::cout << "SyncObject Destructor\n" << std::flush; }; void print() { std::cout << " id = " << id << " locAddrSp0Range = " << locAddrSp0Range << " locAddrSp0Remap = " << locAddrSp0Remap << " locAddrSp1Range = " << locAddrSp1Range << " locAddrSp1Remap = " << locAddrSp1Remap << " usbInterfaceOwner = " << usbInterfaceOwner << " useCounter = " << useCounter << "\n" << std::flush; }; std::string id; interprocess_mutex mtxReadWrite; interprocess_mutex mtxFunction; U32 locAddrSp0Range; U32 locAddrSp0Remap; U32 locAddrSp1Range; U32 locAddrSp1Remap; U32 usbInterfaceOwner; U32 useCounter; }; const char* MANAGED_SHARED_MEMORY_NAME = "sharedMemoryMapTest58"; const char* SYNC_OBJ_LIST_NAME = "sharedMemorySyncList"; typedef offset_ptr<SyncObject> SyncObjOffsetPtr; typedef allocator<SyncObjOffsetPtr, managed_shared_memory::segment_manager> SyncObjOffsetPtrAllocator; typedef list<SyncObjOffsetPtr, SyncObjOffsetPtrAllocator> SyncObjectList; class SharedMemory { public: SharedMemory(); ~SharedMemory(); void printList(); SyncObject* getSyncObject(std::string id); void removeSyncObject(std::string id); private: managed_shared_memory segment; }; SharedMemory::SharedMemory() { segment = managed_shared_memory(open_or_create, MANAGED_SHARED_MEMORY_NAME, 65536); } SharedMemory::~SharedMemory() { std::cout << "SharedMemory Destuctor\n" << std::flush; SyncObjectList* pList = segment.find<SyncObjectList>(SYNC_OBJ_LIST_NAME).first; if (pList) { if (pList->size() < 1) { segment.destroy_ptr(pList); std::cout << "pList destroyed! \n" << std::flush; } } // unlink shared mem object // shared_memory_object::remove(MANAGED_SHARED_MEMORY_NAME); if( shared_memory_object::remove(MANAGED_SHARED_MEMORY_NAME)) std::cout << MANAGED_SHARED_MEMORY_NAME << " successfully removed from the system!\n" << std::flush; else std::cout << MANAGED_SHARED_MEMORY_NAME << " could not be removed from the system!\n" << std::flush; } void SharedMemory::printList() { SyncObjectList* pList = segment.find<SyncObjectList>(SYNC_OBJ_LIST_NAME).first; if (!pList) { std::cout << "List does not exist!\n" << std::flush; return; } std::cout << "list contains: "; for(SyncObjectList::iterator iter = pList->begin(); iter != pList->end(); ++iter ) { std::cout << iter->get()->id << "\t"; } std::cout << "\n" << std::flush; } SyncObject* SharedMemory::getSyncObject(std::string id) { //Initialize shared memory STL-compatible allocator const SyncObjOffsetPtrAllocator syncObjOffsetPtrAllocatorInst (segment.get_segment_manager()); SyncObjectList* pList = segment.find_or_construct<SyncObjectList>(SYNC_OBJ_LIST_NAME)(syncObjOffsetPtrAllocatorInst); printList(); for(SyncObjectList::iterator iter = pList->begin(); iter != pList->end(); ++iter ) { if (iter->get()->id == id) { std::cout << id << " already exists in SHMem! returning pointer\n"; iter->get()->useCounter++; return iter->get(); } } std::cout << id << " is not in the list and will be created in SHMem!\n"; SyncObject* ptr = segment.construct<SyncObject>(id.c_str())(id); ptr->useCounter++; pList->push_back(offset_ptr<SyncObject>(ptr)); return ptr; } void SharedMemory::removeSyncObject(std::string id) { //Initialize shared memory STL-compatible allocator const SyncObjOffsetPtrAllocator syncObjOffsetPtrAllocatorInst (segment.get_segment_manager()); SyncObjectList* pList = segment.find_or_construct<SyncObjectList>(SYNC_OBJ_LIST_NAME)(syncObjOffsetPtrAllocatorInst); printList(); for(SyncObjectList::iterator iter = pList->begin(); iter != pList->end(); ++iter ) { if (iter->get()->id == id) { if (iter->get()->useCounter < 2) { std::cout << "removing " << id << " from list \n" << std::flush; SyncObject *ptr = iter->get(); segment.destroy_ptr(ptr); pList->erase(iter); } else { std::cout << "decrementing userCounter of id " << id << "\n" << std::flush; iter->get()->useCounter--; } break; } } } int main() { try { SharedMemory shm; SyncObject *pSync = shm.getSyncObject("id1"); pSync->mtxFunction.lock(); pSync->print(); pSync->locAddrSp0Range++; pSync->print(); pSync->mtxFunction.unlock(); shm.removeSyncObject("id1"); pSync = shm.getSyncObject("id1"); pSync->mtxFunction.lock(); pSync->print(); pSync->locAddrSp0Range++; pSync->print(); pSync->mtxFunction.unlock(); shm.removeSyncObject("id1"); } catch(boost::interprocess::interprocess_exception &ex) { std::ostringstream sout; sout.str(""); sout << ex.what(); std::cout << sout.str() << std::flush; } return 0; } -- Neu: GMX DSL bis 50.000 kBit/s und 200,- Euro Startguthaben! http://portal.gmx.net/de/go/dsl02

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[ptr_container] ptr_vector and ptr_circullar_buffer don't initialize PODs
by Roman Perepelitsa 29 Oct '09

29 Oct '09

ptr_vector<T>::resize creates new objects using 'new T' instead of 'new T()', which results in uninitialized objects if T is a POD. For consistency with STL containers (std::vector in particular) all PODs must be explicitly initialized. Test: #include <cassert> #include <boost/ptr_container/ptr_vector.hpp> int main() { boost::ptr_vector<int> v; v.resize(1); assert(v[0] == 0); // Might fail. } ptr_circullar_buffer has the same problem. I opened a trac ticket (https://svn.boost.org/trac/boost/ticket/3579) and attached a patch to it. Roman Perepelitsa.

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[boost] Create Graph in Function
by James Thunes 29 Oct '09

29 Oct '09

Perhaps an easy answer, but I am working on adding a boost graph to an existing code. I would like to create the graph in a function (not main) and then read/modify it in a separate function. I am unsure as to what I need to pass between the functions to allow this to work. In other words, I am able to correctly create the graph in a function and modify as necessary. This function will be called many times as the code runs and it is inefficient to recreate the graph every time. I want to create the graph once when the code is run and pass the created graph to the function. Due to the structure of the code (mostly Fortran), I can not define the graph in the main function of the code. My graph is defined as: adjacency_list<vecS, vecS, bidirectionalS, no_property, EdgeProperty> Graph; Thank you for any help you can give, James

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Multiple binds on a asio socket
by Lee MacDonald 29 Oct '09

29 Oct '09

Hi, Is it possible to have multiple binds on a single socket instance? Say I have two multicast addresses that share the same port and use the same nic. On linux I would bind like so: listenEndPoint1(multicastAddress1.to_v4(), port); socket_.bind(listenEndPoint1); socket_.set_option(asio::ip::multicast::join_group(multicastAddress1.to_ v4(), interfaceAddress.to_v4())); } Can I then perform a second bind and join for the other multicast address? listenEndPoint2(multicastAddress2.to_v4(), port); socket_.bind(listenEndPoint2); socket_.set_option(asio::ip::multicast::join_group(multicastAddress2.to_ v4(), interfaceAddress.to_v4())); } If this is not possible or good practice, what would be the alternative? Regards, Lee MacDonald Schneider Trading 4th Floor, 25 Copthall Avenue London EC2R 7BP ________________________________ Message from: lee.macdonald(a)schneidertrading.com Message to: asio-users(a)lists.sourceforge.net Attached files: 0 This e-mail and any files transmitted with it are confidential, may be legally privileged, and are for the sole use of the intended recipient. Copyright in this e-mail and any accompanying document created by us is owned by us. If you are not the intended recipient of this e-mail or any part of it please telephone our IT Department at the number shown above or by e-mail at info(a)schneidertrading.com. You should not use or disclose to any other person the contents of this e-mail or its attachments (if any), nor take copies. This e-mail is not a representation or warranty and is not intended nor should it be taken to create any legal relations, contractual or otherwise. Schneider Trading Associates Ltd (Registration No. 3692131) is incorporated in England and Wales and the registered office is at 25 Copthall Avenue, London EC2R 7BP. The company is authorised and regulated by the Financial Services Authority Schneider Trading 4th Floor, 25 Copthall Avenue London EC2R 7BP -------------------------------------------------------- Message from: lee.macdonald(a)schneidertrading.com Message to: boost-users(a)lists.boost.org Attached files: 0 This e-mail and any files transmitted with it are confidential, may be legally privileged, and are for the sole use of the intended recipient. Copyright in this e-mail and any accompanying document created by us is owned by us. If you are not the intended recipient of this e-mail or any part of it please telephone our IT Department at the number shown above or by e-mail at info(a)schneidertrading.com. You should not use or disclose to any other person the contents of this e-mail or its attachments (if any), nor take copies. This e-mail is not a representation or warranty and is not intended nor should it be taken to create any legal relations, contractual or otherwise. Schneider Trading Associates Ltd (Registration No. 3692131) is incorporated in England and Wales and the registered office is at 25 Copthall Avenue, London EC2R 7BP. The company is authorised and regulated by the Financial Services Authority

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Re: [Boost-users] Signal handler for Unix platforms
by Boris Schaeling 29 Oct '09

29 Oct '09

On Wed, 28 Oct 2009 23:18:04 +0100, Rutger ter Borg <rutger(a)terborg.net> wrote: Hi Rutger, > [...]have a couple of questions. Currently a part of the semantics is > > sh.add_signal( SIGUSR1 ); > sh.async_wait( handler ); > > Wouldn't it be easier to be able to write > > sh.async_wait( SIGUSR1, handler ); this would work if you wait for only one signal unless ... > Alternatively, if catching multiple signals by one handler is required, > one > could think of something like > > sh.async_wait( sigusr1 | sigterm | sigabrt, handler ); ... this notion is supported. But this would require to redefine every signal (like sigusr1 for SIGUSR1)? Is this practically possible? I wonder how many differences there are between platforms and if this causes more maintenance effort? I also wonder what is more asio-like. If I look at the I/O objects of Boost.Asio it seems like they are always configured before an asynchronous operation is called. For example when using the deadline_timer expires_at() or expires_from_now() must be called before async_wait() is called. > sh.async_wait( boost::asio::posix::any_signal, handler ); Same answer as above. :) Apart from that I wonder how many developers would benefit from boost::asio::posix::any_signal. Are there so many applications which need to wait for all signals? > Does the signal ID belong in the signature of the handler function? Am I Yes, please see the test cases test/sync.cpp and test/async.cpp. Here's a simple example: ---------- #include "signal_handler.hpp" #include <boost/asio.hpp> #include <signal.h> void signal_handler(const boost::system::error_code &ec, int signal) { } int main() { boost::asio::io_service io_service; boost::asio::posix::signal_handler sh(io_service); sh.add_signal(SIGUSR1); sh.async_wait(signal_handler); io_service.run(); } ---------- > correct that support for real-time signals is missing at the moment? Not sure as I never used real-time signals. :) Looking up real-time signals the difference is merely prioritized delivery times and signal queues? If that's all real-time signals should be supported. The signal handler puts signals into a std::deque<int> object and doesn't merge signals either (when you call wait() or async_wait() the next signal is fetched from the queue). Boris

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[ANN] CLI command line interface compiler for C++
by Boris Kolpackov 29 Oct '09

29 Oct '09

Hi, I am pleased to announce the first public release of CLI. CLI is an open-source (MIT license), cross-platform command line interface compiler for C++. It allows you to specify the options that your program supports, their types, and default values. For example: include <string>; class options { bool --help; std::string --name = "example"; unsigned int --level | -l = 5; }; This specification can then be automatically translated to C++ classes that implement parsing of the command line arguments and provide a convenient and type-safe interface for accessing the extracted data. For example: #include <string> class options { public: options (int argc, char** argv); options (int argc, char** argv, int& end); bool help () const; const std::string& name () const; unsigned int level () const; ... }; int main (int argc, char* argv[]) { options o (argc, argv); if (o.help ()) print_usage (); if (o.level () > 4) cerr << "name is " << o.name () << endl; ... } It is easy to start using CLI in your application since there are no external dependencies. You can compile your command line interface to C++ and simply add the generated files to your project's source code. For a five minute introduction to CLI, see the "Hello World" example in the CLI Getting Started Guide: http://www.codesynthesis.com/projects/cli/doc/guide/#2 More information, documentation, and source code distributions are available from the project's web page: http://www.codesynthesis.com/projects/cli/ Enjoy, Boris -- Boris Kolpackov, Code Synthesis Tools http://codesynthesis.com/~boris/blog Open-source XML data binding for C++: http://codesynthesis.com/products/xsd XML data binding for embedded systems: http://codesynthesis.com/products/xsde

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[serialization] Serializing a reference
by Ben 29 Oct '09

29 Oct '09

Hello Boost Experts -- And now for my real question. Again, g++ 4.2.1, OS X 10.6.1, boost 1.40. I'm trying to follow the instructions in the document for serializing classes with reference members, which suggests I serialize them as pointers. First, a program which works, that uses pointers and not references: #include <iostream> #include <fstream> #include <boost/archive/binary_oarchive.hpp> #include <boost/archive/binary_iarchive.hpp> struct A { int v; template<class Ar> void serialize(Ar & ar, const unsigned int ver) { ar & v; } }; struct B { A *ap; B(A *ap_) : ap(ap_) {} template<class Ar> void serialize(Ar & ar, const unsigned int ver) {} }; template<class Ar> void save_construct_data(Ar & ar, const B * b, const unsigned int ver) { ar << b->ap; } template<class Ar> void load_construct_data(Ar & ar, B * b, const unsigned int ver) { A * ap_; ar >> ap_; ::new(b)B(ap_); } int main(int ac, char ** argv) { A a; a.v = 10; B * b1p; b1p = new B(&a); const char * fname = "test.bin"; { std::ofstream ofs(fname); boost::archive::binary_oarchive ar(ofs); ar << b1p; } B * b2p; { std::ifstream ifs(fname); boost::archive::binary_iarchive ar(ifs); ar >> b2p; } std::cout << b2p->ap->v << std::endl; return 0; } What I would really like to do is to modify this program so that class B has a reference to class A instead of a pointer. The documentation suggests I do the following: "This raises the question of how and where the objects being referred to are stored and how are they created. Also there is the question about references to polymorphic base classes. Basically, these are the same questions that arise regarding pointers. This is no surprise as references are really a special kind of pointer. We address these questions by serializing references as though they were pointers." The example given after this serializes the address of the referenced object, similar to the above. My translation of that code is: #include <iostream> #include <fstream> #include <boost/archive/binary_oarchive.hpp> #include <boost/archive/binary_iarchive.hpp> struct A { int v; template<class Ar> void serialize(Ar & ar, const unsigned int ver) { ar & v; } }; struct B { A &a; B(A &a_) : a(a_) {} template<class Ar> void serialize(Ar & ar, const unsigned int ver) {} }; template<class Ar> void save_construct_data(Ar & ar, const B * b, const unsigned int ver) { ar << (&(b->a)); } template<class Ar> void load_construct_data(Ar & ar, B * b, const unsigned int ver) { A * ap_; ar >> ap_; ::new(b)B(*ap_); } int main(int ac, char ** argv) { A a; a.v = 10; B * b1p; b1p = new B(a); const char * fname = "test.bin"; { std::ofstream ofs(fname); boost::archive::binary_oarchive ar(ofs); ar << b1p; } B * b2p; { std::ifstream ifs(fname); boost::archive::binary_iarchive ar(ifs); ar >> b2p; } std::cout << b2p->a.v << std::endl; return 0; } This however fails to compile, with the message: Compilation started at Fri Oct 23 15:25:29 make -k debug make all "CXX_FLAGS = -g -fno-inline -m64 -I. -I.. -I/opt/local/include -Wall -Wextra -Wpointer-arith -Wcast-align -Wwrite-strings -Wconversion -Woverloaded-virtual -Wno-sign-compare -Wno-unused -fno-nonansi-builtins" \ "LD_FLAGS = -g -m64" g++ -g -fno-inline -m64 -I. -I.. -I/opt/local/include -Wall -Wextra -Wpointer-arith -Wcast-align -Wwrite-strings -Wconversion -Woverloaded-virtual -Wno-sign-compare -Wno-unused -fno-nonansi-builtins -c test.cc -o test.o test.cc: In function 'void save_construct_data(Ar&, const B*, unsigned int) [with Ar = boost::archive::binary_oarchive]': /opt/local/include/boost/serialization/serialization.hpp:148: instantiated from 'void boost::serialization::save_construct_data_adl(Archive&, const T*, unsigned int) [with Archive = boost::archive::binary_oarchive, T = B]' /opt/local/include/boost/archive/detail/oserializer.hpp:179: instantiated from 'void boost::archive::detail::pointer_oserializer<Archive, T>::save_object_ptr(boost::archive::detail::basic_oarchive&, const void*) const [with Archive = boost::archive::binary_oarchive, T = B]' test.cc:60: instantiated from here test.cc:27: error: no match for 'operator<<' in 'ar << (A*)b->B::a' /opt/local/include/boost/archive/detail/interface_oarchive.hpp:63: note: candidates are: Archive& boost::archive::detail::interface_oarchive<Archive>::operator<<(T&) [with T = A*, Archive = boost::archive::binary_oarchive] make[1]: *** [test.o] Error 1 make[1]: Target `all' not remade because of errors. make: *** [debug] Error 2 Compilation exited abnormally with code 2 at Fri Oct 23 15:25:30 What am I doing wrong? Best regards, Ben

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Boost deserialization of contained object fails when performed from a constructor, but succeeds otherwise.
by bhartsb 28 Oct '09

28 Oct '09

E.G.: ContainingClass::ContainingClass(){ pNA = new objectArray*[NUMBER]; //allocates ptrs ... pNA[ii] = new objectArray(SIZE);//allocates object array, and object array has a std::map "PatternsMap" ... pNA[ii]->load(pNA[ii], "../release/NA Data/NADataa descriptionNA0"); //fails pNA[ii]->PatternsMap.size(); //size = 0 } If I call the following lines of code after the constructor exits then all is well: pNA[ii]->load(pNA[ii], "../release/NA Data/NADataa descriptionNA0"); //succeeds pNA[ii]->PatternsMap.size();//size > 0 Any ideas? Note, that in the constructor example I verified that objectArray was constructed first. -- View this message in context: http://www.nabble.com/Boost-deserialization-of-contained-object-fails-when-… Sent from the Boost - Users mailing list archive at Nabble.com.

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[Thread] io_service post is unsuccessful
by Dylan Klomparens 28 Oct '09

28 Oct '09

I'm trying to figure out why a call to boost::io_service::post might be failing. My program is multithreaded, and has a periodic "timing event" that is triggered. The timing event calls "Service.post(&OnSignal);" to execute a handler, while another thread runs the service. Using this design, I can post an event from any thread without worrying about explicit resource locking. My question is, why does my call to Service.post always fail? I know it is failing because the function that I post never gets called. There is not explicit return code or thrown exception to indicate that there is a problem. Below is an example of what I'm trying to do. Inside main(), there is a commented call to "Service.post(&OnSignal);". Uncommenting that line results in a successful post to the Service, which eventually calls OnSignal, (but only once, obviously). Why does that call work, but not the call in TimingSignalThread()? #include <iostream> #include <boost/asio.hpp> #include <boost/thread/thread.hpp> using namespace std; // This is the service responsible for queuing the events. boost::asio::io_service Service; // This is the function that should be periodically queued by the TimingSignalThread. void OnSignal() { cout << "Got timing signal"; } // This function runs in its own thread, and periodically posts OnSignal() to the Service. void TimingSignalThread() { boost::this_thread::disable_interruption di; // Run until interrupted by <enter>. while(!boost::this_thread::interruption_requested()) { cout << "."; boost::this_thread::sleep(boost::posix_time::millisec(500)); Service.post(&OnSignal); // This post is never successful. } } // This function runs in its own thread, and executes all posts. void ServiceRunner() { Service.run(); } int main() { boost::thread TimingThread(&TimingSignalThread); boost::thread ServiceThread(&ServiceRunner); // Why does 'post()' work here, but not in TimingSignalThread()? // Uncommenting the following line results in a single successful post to OnSignal. // Service.post(&OnSignal); cin.get(); // Press enter to end the program. TimingThread.interrupt(); TimingThread.join(); Service.stop(); ServiceThread.join(); cout << "Joined all threads." << endl; return 0; }

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[Proto] Stuck turning a complex gramamr action to a primitive trasnform
by joel 28 Oct '09

28 Oct '09

I tried to turn a complex grammar transform : struct grammar : or_< ... ,bp::when< bp::nary_expr< bp::_, bp::vararg< grammar > > , bp::_default< grammar > ( _bp::functional::unpack_expr<bp::tag::function>( push_front( bp::_ , bp::_make_terminal ( some_type< bp::tag_of<bp::_> >() ) ) ) ) > into a single primitive transform but I end up stuck cause it seems some of those transform (make_terminal) don't follow the classic proto::result_of/proto namespace acces to compute it's return type and calling it. How should I handle these ? My intuition was that the transform oeprator() will call the equivalent function onto its expr parameters while its result struct compute the result_of by chaining the transform result_of results. Ultimately, I want this to be a tempalte trasnform that take some_type as a parameter : bp::when< bp::nary_expr< bp::_, bp::vararg< grammar > > , traversal<some_type>(bp) > Thanks in advance -- ___________________________________________ Joel Falcou - Assistant Professor PARALL Team - LRI - Universite Paris Sud XI Tel : (+33)1 69 15 66 35

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range_ex
by Richard Ulrich 28 Oct '09

28 Oct '09

Hi list, what's the status of range_ex? I read that it was accepted into boost half a year ago. So, will it make it into 1.41? This week I downloaded it from the boost vault, as the version from the svn sandbox seemed to be outdated. I like it very much so far. Just two remarks/questions: - in my measurements using the piped adapters (filtered / transformed) was on average 4% slower than hand coded loops. Do I have to live with that, or are there any tricks / hints? - I can't use lambdas for the adapters. - transformed expects a result_type that also lambda::res<> doesn't seem to provide. - filtered tries to copy the functor, which in turn lambda doesn't seem to like. Rgds Richard

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Boost.stringalgo
by Marcia Chadly 28 Oct '09

28 Oct '09

Compiling the folowing using is_iless as the predicate for a multi index container results in errors. When is_less is used instead, it compiles fine. typedef mi::multi_index_container< GTLayer, mi::indexed_by< mi::sequenced<>, // list-like index mi::ordered_unique< mi::tag<name>, mi::const_mem_fun<GTLayer, std::string, &GTLayer::GetLayerName>, //std::greater<std::string> ::boost::algorithm::is_iless // names sorted > > > layer_container; The error messages are - Error 4 error C2440: 'type cast' : cannot convert from 'std::basic_string<_Elem,_Traits,_Ax>' to 'unsigned char' C:\Program Files\Microsoft Visual Studio 8\VC\include\xlocale 561 Error 3 error C2440: 'type cast' : cannot convert from 'unsigned char' to 'std::basic_string<_Elem,_Traits,_Ax>' C:\Program Files\Microsoft Visual Studio 8\VC\include\xlocale 583 Is this an include problem? I have tried the following includes - #include <boost/multi_index_container.hpp> #include <boost/multi_index/mem_fun.hpp> #include <boost/multi_index/ordered_index.hpp> #include <boost/multi_index/sequenced_index.hpp> #include <boost/algorithm/string/compare.hpp> #include <boost/algorithm/string.hpp> #include <boost/algorithm/string/predicate.hpp> #include <map> #include <string> #include <cwchar> #include <locale> Thanks - Marcia

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Serialization, seg fault on "unregister key"
by dada＠lamef.bordeaux.ensam.fr 28 Oct '09

28 Oct '09

Hi, I'm using boost serialization. My program crash with a segmentation fault just before its end. A gdb's backtrace show that the last function's call is the unregister_key()'s function of boost serialization. Is there a way to fix it ? Thank you, Damien.

2 1

[bind] Unable to pass method to simple function pointer
by Carlos 28 Oct '09

28 Oct '09

Hello, I am trying to make a wrapper for libxml's SAX api, for learning purpose, I am trying to use bind to wrap sax events in a class like this : namespace sax { class document { public: document(); ~document(); protected: virtual void start_node( void *user_data, const xmlChar *name, const xmlChar **attrs ); xmlSAXHandler m_evhdl; xmlParserCtxtPtr m_ctxt; }; } The start_node() function is intended to be pointed by the startElement member from xmlSAXHandler ( it has same definition than start_node ). I tried to use bind to copy function pointer in the constructor like this : document::document() { // binding here m_evhdl.startElement = boost::bind( &document::start_node, this, _1, _2, _3 ); // xml init m_ctxt = xmlCreateFileParserCtxt( "catalogue.xml" ); m_ctxt->sax = &m_evhdl; xmlParseDocument( m_ctxt ); } The issue is that I can't submit the binded function to startElement because bind submits "this" as a parameter to startElement, which is incompatible definition, so is there a solution to my binding ? Regards Carlos

2 1

Problem with weak_ptr exception
by Jacob Carlborg 28 Oct '09

28 Oct '09

I'm having some problems with bad_weak_ptr exceptions. I have reduced my code into this test case: #include <boost/shared_ptr.hpp> #include <boost/weak_ptr.hpp> using boost::shared_ptr; using boost::weak_ptr; class A { weak_ptr<A> weakThis; public: virtual ~A(){} shared_ptr<A> a; shared_ptr<A> getThis () { shared_ptr<A> x(weakThis); return x; } void init () { a = getThis(); } static shared_ptr<A> create () { shared_ptr<A> x(new A); x->weakThis = x; x->init(); return x; } }; class B : public A { weak_ptr<B> weakThis; public: virtual ~B(){} shared_ptr<B> getThis () { shared_ptr<B> b(weakThis); return b; } static shared_ptr<B> create () { shared_ptr<B> x(new B); x->weakThis = x; x->init(); return x; } }; int main (char** argv, int argc) { shared_ptr<B> b = B::create(); return 0; } If I create an instance of A instead of B or doesn't call x->init() in the B's create function I don't get an exception. The problem is creating a shared_ptr from the weak_ptr in getThis.

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[statechart] Added triggering_event() to the trunk (will be in 1.42 release)
by Andreas Huber 28 Oct '09

28 Oct '09

Those in urgent need of this feature can get it from the trunk. Documentation isn't there yet, but the test should give you a pretty good idea of what it does: <http://svn.boost.org/svn/boost/trunk/libs/statechart/test/TriggeringEventTe…> As always, feedback is highly welcome. Regards, -- Andreas Huber When replying by private email, please remove the words spam and trap from the address shown in the header.

1 0

BGL: cutting subgraph using more than one condition.
by Arman Khalatyan 28 Oct '09

28 Oct '09

Hello, I would like to cut my MST graph using several conditions on Edge. template<typename WMap> class Remover { public: Remover(const WMap& weights, MyFloat threshold) : m_weights(weights), m_threshold(threshold) {} template<typename ED> bool operator()(ED w) const { return m_weights[w] < m_threshold; }// here I would like to have set of conditions based on vertexes of the edge private: const WMap& m_weights; MyFloat m_threshold; }; Remover<weight_map_type> r(get(edge_weight, graphMST), Wthr ); remove_edge_if(r, graphMST); Is it possible to define instead of Wthr to define an array of properties? What is the proper way to do it? Thanks Arman.

2 1

[Boost.Assign][doc] Question on a statement in the documentation
by Alexander Gutenev 28 Oct '09

28 Oct '09

Here http://www.boost.org/doc/libs/1_40_0/libs/assign/doc/index.html#extensions is stated "it is illegal to take the address of a function in the standard library" Is it correct? Where is it mentioned in the Standard? 17.4.4.4/2 says that a member function may be replaced with the version with other signature, but a) "a member function" != "a function" b) May be replaced with the version with other signature doesn't mean one cannot take its address, it only means taking its address doesn't make sense for portable code.

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system error 22
by pedro chaparro 28 Oct '09

28 Oct '09

hi, im trying the serialization examples in http://www.boost.org/doc/libs/1_40_0/doc/html/boost_asio/examples.html , the fact is that i'm getting and invalid argument error, i have examined deeply the code, and i found that the error comes from handle_read function in client.cpp which receive in its function parameter a system::error "e" that is equal to system 22; what is this error related with? thanks --

1 0

[iterator] Automatic definition of transform_iterator reference_type
by Sebastian Theophil 28 Oct '09

28 Oct '09

[Posted once again with better subject] I've encountered a problem when using boost::mem_fn in transform_iterators. In the attached example, I've chained two transform_iterators. The first iterator returns an Obj by value and the second extracts a member of the temporary object. The example shows that the return value is not quite what is expected. boost::mem_fn(&Obj::m_member) returns an int const&. The transform_iterator uses the return value of the UnaryFunction template parameter to initialize his value_type. In the given example, this logic seems too simple. At least if the UnaryFunction is of type boost::_mfi::dm the transform_iterator could do better: If Reference is boost::use_default If UnaryFunction is boost::_mfi::dm && Iterator::value_type is not a reference itself reference = boost::remove_reference( result_of(UnaryFunction) ) Else reference = result_of(UnaryFunction) Else reference = Reference Is this too much of a special case to fix it in the transform_iterator? The same logic would apply to all (unknown) functors that returned references to member variables. In general, the transform_iterator can probably not decide if a reference returned from a UnaryFunction will cease to exist when the temporary is destroyed. It could have been a global object. On the other hand, transform_iterators should work correctly if only boost objects are used, shouldn't they? I'd like to hear what you think, Sebastian #include "boost/iterator/transform_iterator.hpp" #include <vector> struct Obj { Obj(int n) : m_member(n) {} Obj(Obj const& obj) : m_member(obj.m_member) {} ~Obj() { m_member=INT_MIN; } int m_member; }; static Obj GetObjByValue( int n ) { return Obj(n); } void main() { std::vector<int> v(1, 5); int n=*boost::make_transform_iterator( boost::make_transform_iterator( v.begin(), GetObjByValue ), boost::mem_fn(&Obj::m_member) ); _ASSERT(n==INT_MIN); } -- Sebastian Theophil . stheophil(a)think-cell.com Software Engineer think-cell Software GmbH . Invalidenstr. 34 . 10115 Berlin, Germany http://www.think-cell.com . phone +49-30-666473-10 . toll-free (US) +1-800-891-8091 Directors: Dr. Markus Hannebauer, Dr. Arno Schoedl . Amtsgericht Berlin-Charlottenburg, HRB 85229

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[mpi] - why this code hangs on gather?
by tomasz jankowski 28 Oct '09

28 Oct '09

hello boost users please look (if you find few minutes) code bellow first i'm declaring molecule class (with needed serialization) in main() first I'm building vector of data (which are molecules) then vector is divided to chunks and send in point to point nonblocking communication model to rest of mpi processes. after that some calculation on molecules are done. at the end I want gather all data but the program hangs on gather in proces with rank 0 does anyone has idea what is wrong in this code? tom #include <vector> #include <algorithm> #include <boost/mpi.hpp> #include <boost/serialization/string.hpp> #include <boost/serialization/vector.hpp> #include <boost/lexical_cast.hpp> #include <iostream> #include <cstdlib> #include <string> #include <boost/random/linear_congruential.hpp> #include <boost/random/uniform_real.hpp> #include <boost/random/variate_generator.hpp> #include <boost/format.hpp> namespace mpi = boost::mpi; class molecule { friend std::ostream & operator<<(std::ostream &os, const molecule &prot); friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int){ ar & x_ & y_ & z_ & number_ & message_; } public: // constructor molecule(){x_=0; y_=0; z_=0; number_= 0; message_ = "";}; molecule(double x, double y, double z, unsigned int n, std::string m) : x_(x), y_(y), z_(z), number_(n), message_(m) {} void print(){ std::cout << (boost::format("%.6f") % x_) << " | "<< (boost::format("%.6f") % y_) << " | " << (boost::format("%.6f") % z_) << " | " << number_ << "\t| " << message_ << std::endl; } double x_; double y_; double z_; unsigned int number_; std::string message_; }; int main(int argc, char* argv[]) { //generator boost::minstd_rand generator_real(42u); //distribution boost::uniform_real<> uni_dist_real(0,1); //functor boost::variate_generator<boost::minstd_rand, boost::uniform_real<> > uni_real(generator_real, uni_dist_real); mpi::environment env(argc, argv); mpi::communicator world; // data construction std::vector<molecule> data; if (world.rank() == 0) { for(unsigned int i=0;i<8020;++i){ std::string txt("see you later aligator"); molecule tmp(1,1,1,i,txt); data.push_back(tmp); } } //broadcast(world,data,0); //we could do it by broadcast (line above) - but lets do it by point to point with only amount of data we need //work vectors std::vector<molecule> res; std::vector<std::vector<molecule> > allRes; // we need to divide our data between processes unsigned int nProcs=world.size(); unsigned int chunkSize=data.size() / nProcs; unsigned int extraBits=data.size() % nProcs; // extra bits we will do in root process if( world.rank() == 0 ){ mpi::request reqs[nProcs-1]; for(unsigned int i=1;i<nProcs;++i){ std::vector<molecule> sendmol; unsigned int pos=extraBits+i*chunkSize; for(unsigned int j=0;j<chunkSize;++j){ sendmol.push_back(data[pos]); pos++; } reqs[i-1] = world.isend(i, 0, sendmol); std::cout<<"msg sended to "<< i <<std::endl;std::cout.flush(); } for(unsigned int i=0;i<chunkSize + extraBits;++i){ molecule tmp = data[i]; tmp.x_ *= uni_real(); tmp.y_ *= uni_real(); tmp.z_ *= uni_real(); tmp.message_ = "from process: " + boost::lexical_cast<std::string>(world.rank()); res.push_back(tmp); } mpi::wait_all(reqs, reqs + nProcs - 1); std::cout<<"calculation finished in 0 "<<std::endl;std::cout.flush(); } std::vector<molecule> recvmol; mpi::request recv; recv = world.irecv(0, 0, recvmol); recv.wait(); std::cout<<"receiving finished "<<world.rank()<<std::endl;std::cout.flush(); for(unsigned int i=0;i<recvmol.size();++i){ molecule tmp = recvmol[i]; tmp.x_ *= uni_real(); tmp.y_ *= uni_real(); tmp.z_ *= uni_real(); tmp.print(); tmp.message_ = "from process: " + boost::lexical_cast<std::string>(world.rank()); res.push_back(tmp); } std::cout<<"calculation finished in "<<world.rank()<<std::endl;std::cout.flush(); //wysylanie wynikow ze wszystkich procesow mpi do procesu 0 if( world.rank() == 0 ){ gather(world,res,allRes,0); std::cout<<"gather finished "<<world.rank()<<std::endl;std::cout.flush(); } else { gather(world,res,0); std::cout<<"gather finished"<<world.rank()<<std::endl;std::cout.flush(); } // output if(world.rank()==0){ for(unsigned int i=0;i<static_cast<unsigned int>(world.size());++i){ std::cout<<"results from process "<<i<<": "<<std::endl; for(int k=0; k<allRes[i].size();k++){ allRes[i][k].print(); } std::cout<<std::endl; } std::cout<<"making output finished "<<world.rank()<<std::endl;std::cout.flush(); } return 0; } ---------------------------------------------------- Kabaret Łowcy.B atakuje! Wygraj płytę DVD. Weź udział w konkursie: http://klik.wp.pl/?adr=http%3A%2F%2Fcorto.www.wp.pl%2Fas%2Fkonkurs_lowcy.ht…

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[spirit][regex] rxstrlit/regex_p with wchar_t strings
by Adam Badura 28 Oct '09

28 Oct '09

Is it possible to use rxstrlit/regex_p with wide character strings (wchar_t based)? Or even better, with arbitrary char type/char traits pair? I tried this with suggested example (http://www.boost.org/doc/libs/1_40_0/libs/spirit/classic/example/fundamenta…) and after converting to wchar_t what was required and compiling it run successfully. But it generated a lot of warnings about converting wchar_t to char in headers that looked like regex headers. So I guess it worked only because the wchar_ts in the example are actually chars. If I changed the example to use wchar_t which have no corresponding char values the example would likely fail. In the end I have a string with templated char type and traits type (just like with string and iostream library). And I want to match it against grammar build from (among others) strings with the same char type and traits type. Can I force regex in Spirit to do that? Adam Badura

1 0

Preprocessor Sum Shift
by Mitch Besser 28 Oct '09

28 Oct '09

I would like to take the following Sequence of Tuples: ((A, 1)) ((B, 1)) ((C, 1)) ((D, 2)) ((E, 4)) and create a summation as follows: ((A, 0)) ((B, 1)) ((C, 2)) ((D, 3)) ((E, 5)) I've been able to produce the following summation: ((A, 1)) ((B, 2)) ((C, 3)) ((D, 5)) ((E, 9)) Which is close to correct but is shifted. No matter what I try, I can't create the desired result. It seems the preprocessor library just doesn't have enough power to do the job, but maybe there's a way to do this I can't see. For those interested, the input represents member variables and their respective sizes. The output is member variables and their respective offsets within the struct (byte aligned in the example case). The ultimate goal is to generate some test case code, so feel free to suggest a non-preprocessor way to do the same thing. As an aside, I get warnings in the case where there is only 1 Tuple in the Sequence ((A, 1)). It would be nice to solve this too. Thanks email: <pdx247(a)yahoo.com>

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Re: [Boost-users] linker error with Boost serialization on 64 bit box. Works fine on 32 bit box.
by Mangal 28 Oct '09

28 Oct '09

I changed the config.jam file to point to the STLPORT installation. My command to build boost libs is : run bjam toolset=msvc stdlib=stlport stage All the libraries are built ( both serialization and wserialization are there) 2 of the linker errors are: BinarySerialization.obj : error LNK2001: unresolved external symbol "protected: __thiscall boost::archive::text_oarchive_impl<class boost::archive::text_oarchive>::text_oarchive_impl<class boost::archive::text_oarchive>(class stlpmtx_std::basic_ostream<char,class stlpmtx_std::char_traits<char> > &,unsigned int)" (??0?$text_oarchive_impl@Vtext_oarchive@archive@boost@@@archive@boost@@IAE@AAV?$basic_ostream@DV?$char_traits@D@stlpmtx_std@@@stlpmtx_std@@I@Z) libboost_serialization-vc90-mt-p-1_40.lib(extended_type_info_typeid.obj) : error LNK2001: unresolved external symbol "__declspec(dllimport) public: static void __cdecl stlp_std::__node_alloc::deallocate(void *,unsigned int)" (__imp_?deallocate@__node_alloc@stlp_std@@SAXPAXI@Z) Thanks Steven Watanabe-4 wrote: > > AMDG > > Mangal wrote: >> I am using STLPort 5.2.1 and Boost1_40_0 with MSVC 9.0. >> I have successfully compiled boost libs with STLPort and am using the >> Graph, >> filesystem and DateTime libraries. >> I use dynamic linking of STLPort libs. All the projects build and run >> fine. >> >> Today I started looking at the serialization library and just compiling >> the >> basic demo threw a 100 linker errors. >> All the paths for boost libs and STLPort binaries are correct. >> >> This is on a 64 bit system. >> >> When i ran the same code for serialization on a 32 bit box it compiled >> and >> ran fine. >> >> Is there some setting I am missing for 64 bit systems? >> > > Can you post > > a) the error messages (at least the first one) > b) the command(s) that you used to build boost. > > In Christ, > Steven Watanabe > > _______________________________________________ > Boost-users mailing list > Boost-users(a)lists.boost.org > http://lists.boost.org/mailman/listinfo.cgi/boost-users > > -- View this message in context: http://www.nabble.com/linker-error-with-Boost-serialization-on-64-bit-box.-… Sent from the Boost - Users mailing list archive at Nabble.com.

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[newbie-unordered_set] string example
by Soumen 28 Oct '09

28 Oct '09

I'm using boost 1.35. I wanted to use boost::intrusive::unordered_set for std::string - couldn't find an example how to do it. Can someone give a small example? As of now I've coded using from tr1 in following way - typedef std::tr1::unordered_set< std::string, boost::hash< std::string > > Hash; Hash tbl; tbl.insert("abcd"); bool found = tbl.find("xyz") == tbl.end() ? true : false; Regards, - Soumen -- View this message in context: http://www.nabble.com/-newbie-unordered_set--string-example-tp26009431p2600… Sent from the Boost - Users mailing list archive at Nabble.com.

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Re: [Boost-users] thread_specific_ptr problem
by Vertleyb, Arkadiy 28 Oct '09

28 Oct '09

Hi all, The following code demonstrates thread_specific_ptr problem while loading/unloading a shared library. Apparently some resource is not cleanned up. Can somebody comment on this? Thanks, Arkadiy lib.cpp: ------- #include <string> #include <boost/thread.hpp> boost::thread_specific_ptr < std::string > tls_with_mmap; main.cpp: ---------- #include <stdint.h> #include <stdlib.h> #include <dlfcn.h> #include <stdio.h> int main( int argc, const char* argv[]) { if( argc < 3 ) { printf("usage %s <dlname> <repeat count>\n", argv[0]); return 1; } const char* dlname = argv[1]; uint16_t iters = atoi(argv[2]); for( uint16_t i = 0; i < iters; ++i ) { printf("attempt %02d\n", i); void* handle = ::dlopen(dlname, RTLD_NOW ); if( handle ) ::dlclose(handle); else { printf("dlopen failed\n"); break; } } return 0; } build.sh: -------- BOOST_VER=38 CCFLAGS="-Wcomment -Wformat -Wmissing-braces -Wparentheses -Wreturn-type -Wsign-compare -Wstrict-aliasing -Wswitch -Wtrigraphs -Wunknown-pragmas -Wunused-function -Wunused-label -Wunused-value -Wunused-variable -Wextra -g -O0 -fno-inline -fexceptions -ftemplate-depth-128 -Wnon-virtual-dtor -I/usr/include/nptl -I/builder/3rdParty/boost/v${BOOST_VER}.0/include -D__NO_INLINE__=1 -D_DEBUG -DDEBUG" g++ -x c++ -m32 ${CCFLAGS} -fPIC -pipe -o "lib.o" -c "lib.cpp" g++ -m32 -o boost_thread_test.so -shared -Wl,-Bsymbolic -Wl,-h -Wl,boost_thread_test.so -Wl,--no-undefined -Wl,--start-group lib.o /builder/3rdParty/boost/v${BOOST_VER}.0/lib32/gcc-3.4.6/libboost_thread-mt-d.a /usr/lib/libpthread.so -lstdc++ -lc -lm -Wl,--end-group g++ -x c++ -m32 ${CCFLAGS} -fPIC -pipe -o "main.o" -c "main.cpp" g++ -m32 -o boost_thread_test.exe -Wl,--start-group main.o /usr/lib/libpthread.so /usr/lib/libdl.so -lstdc++ -lc -lm -Wl,--end-group Linux version: -------------- Red Hat Enterprise Linux ES release 4 (Nahant Update 4) Invocation: ----------- > ./boost_thread_test.exe ./boost_thread_test.so 600 ... attempt 509 attempt 510 attempt 511 boost_thread_test.exe: libs/thread/src/pthread/thread.cpp:102: void boost::detail::<unnamed>::create_current_thread_tls_key(): Assertion `!pthread_key_create(&current_thread_tls_key,&tls_destructor)' failed. Aborted

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linker error with Boost serialization on 64 bit box. Works fine on 32 bit box.
by Mangal 28 Oct '09

28 Oct '09

Hi I am using STLPort 5.2.1 and Boost1_40_0 with MSVC 9.0. I have successfully compiled boost libs with STLPort and am using the Graph, filesystem and DateTime libraries. I use dynamic linking of STLPort libs. All the projects build and run fine. Today I started looking at the serialization library and just compiling the basic demo threw a 100 linker errors. All the paths for boost libs and STLPort binaries are correct. This is on a 64 bit system. When i ran the same code for serialization on a 32 bit box it compiled and ran fine. Is there some setting I am missing for 64 bit systems? Thanks -- View this message in context: http://www.nabble.com/linker-error-with-Boost-serialization-on-64-bit-box.-… Sent from the Boost - Users mailing list archive at Nabble.com.

2 1

[Interprocess] interprocess_upgradable_mutex and recursivity
by Gaetan Gaumer 27 Oct '09

27 Oct '09

Hello, is there a specific raison why the interprocess_upgradable_mutex is non-recursive ? I need the "Sharable lock" functionality of these mutexes but non-recursivity is a big problem for my usage. Is there a solution to have both "sharability" and "recursivity" in an shared memory storable mutex ? Thanks for your help, Gaëtan

1 0

boost & eclipse IDE
by pedro chaparro 27 Oct '09

27 Oct '09

hi, i'd like to know if there is some tutorial or manual about how to use boost libraries with eclipse IDE. thanks -- Ing Pedro Alonso Chaparro Valero Ciudad Politecnica de la Innovación iTEAM - Mobile Communications Group Polytechnic University of Valencia C\ Camino de Vera S/N, Edificio 8G 46022 Valencia, Spain

2 1

[conversion] Release v0.4: Replace function template specialization by ADL
by vicente.botet 27 Oct '09

27 Oct '09

Hi, I have just released the version 0.4 of Boost.Conversion , which includes since my last publicly announced version 0.3: Replace function template specialization by ADL A Source class is convertible to a Target class if: * Either: A function with the signature convert_to<Target>(Source const&, boost::dummy::type_tag<To> const&) is available via argument dependent lookup * Or: A template specialization of boost::conversion::convert_to<Target, Source> exists for Target and Source * Or: Target is copy constructible from Source (default implementation) The template function convert_to allows to convert a source type to a target type, using argument dependent lookup to select a specialized convert_to function if available. If no specialized convert_to function is available, boost::conversion::convert_to is used. The generic convert_to function requires that the elements to be converted are assignable and copy constructible. It is implemented using the Target copy construction from a Source or the Source conversion operator Target - this is sometimes unavailable. For standard types, we can not add a specialized convert_to function on the namespace std. The alternative to using argument dependent lookup in this situation is to provide a template specialization of boost::conversion::convert_to for every pair of standard types that requires a specialized convert_to. You can found all the detail for dowloading, documentation, ... in http://svn.boost.org/trac/boost/wiki/LibrariesUnderConstruction#Boost.Conve… I'd appreciate it if people could take a look, test it on their compiler and give me some feedback. Thanks to Edward Diener for showing me that multiple assignments should be taken in account. Thanks also to Jeffrey Hellrung and Robert Stewart for showing me that Boost.Conversion should use also ADL. BTW, I'm looking for a review manager. Anyone around here who would like to volunteer? Best regards, _____________________ Vicente Juan Botet Escribá

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Boost.Tree at sandbox - status
by Josue Andrade Gomes 27 Oct '09

27 Oct '09

Hi all, What is the status of Boost.Tree at sandbox (SOC/2006/tree) ? Is there someone working on or using it ? regards, -- Josue Andrade Gomes http://www.josuegomes.com/

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Re: [Boost-users] Use of ccache with Boost
by Dalton, Tom 27 Oct '09

27 Oct '09

Further to my questions from last week: I've tried both methods - first I tried changing the toolset to make the gcc toolset use "ccache g++" as the compiler executable. I had some problems with that, so I tried the symlink approach suggested by Roland. This is also failing, with some seemingly very subtle bug that I can't suss out. The build progresses a little way, until it gets to libs/program_options/src/cmdline.cpp When g++ isn't a symlink to ccache, I get the following output as shown by the attachment build.log.1.fragment. When I have gcc & g++ symlinks in the ccache bin dir pointing to ccache (the PATH is ccache/bin:real_gcc/bin), the output is like the second attachment and the file fails. The build logs diverge from that point onwards as more and more stuff either fails, or is skipped due to previous failures. There are 2 issues that I can see from those logs. Firstly the line numbering on the .hpp includes is one-out on the ccache-enabled build. Does this mean the preprocessor is behaving strangely? Secondly, on line 15 of the failing fragment file, it looks like part of the output is cut off (at the end of the line, it gets "boost::_bi::list2<boost::_bi::v0.000008 sec system; 0.000164 sec user". Can anyone help me? I don't know what would cause either of these issues. Tom PS Using gcc 4.4.1, ccache 2.4 and tried boost 1.39.0 and 1.40.0, with the same results. -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Dalton, Tom Sent: 29 September 2009 16:20 To: boost-users(a)lists.boost.org Subject: Re: [Boost-users] Use of ccache with Boost Daniel and Roland, Thanks guys, that gives me some good avenues to explore. Tom -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Daniel James Sent: 29 September 2009 16:07 To: boost-users(a)lists.boost.org Subject: Re: [Boost-users] Use of ccache with Boost 2009/9/29 Dalton, Tom <tom.dalton(a)eds.com>: > > I'm using Boost on Linux however for various reasons I need to rebuild > parts of it occasionally. For other C/C++-based tools that are built > with autoconf/automake, I've started to use ccache > (http://ccache.samba.org/) to speed up recompilation. This is done > simply by setting the CC / CXX environment variables to "ccache gcc" / > "ccache g++" respectively. I have had a look through the Jam > documentation but I can't see an easy way to achieve the same thing > when building the Boost distribution. The closest I came was a bit on > the trac that simply said I can add a new toolset, but had no real instructions as to how. Create a file called 'user-config.jam' in your home directory, containing something like: using gcc : : ccache g++ ; Or possibly with the version number: using gcc : 4.4 : ccache g++-4.4 ; For more information see: http://www.boost.org/doc/libs/1_40_0/doc/html/bbv2/advanced.html#bbv2.ad vanced.configuration Daniel _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

3 8

program_options bad_any_cast in XCode
by Thijs Koerselman 27 Oct '09

27 Oct '09

Hi, Somehow I keep getting exceptions related to the use of strings when I compile my program in Xcode. If I use strings in my program arguments I get an bad_any_cast exception from the store() method. If I compile the same program from the command line directly it works fine, but I can't seem to figure out what the difference is between the two build commands that is causing this behavior. I compiled the program from the command line like this: g++-4.2 -arch i386 -I/opt/local/include -L/opt/local/lib -lboost_program_options-mt -o waveform_manbuild main.cpp Xcode uses the following: CompileC build/waveform.build/Release/waveform.build/Objects-normal/i386/main.o main.cpp normal i386 c++ com.apple.compilers.gcc.4_2 cd /Users/foo/waveform setenv LANG en_US.US-ASCII /Developer/usr/bin/gcc-4.2 -x c++ -arch i386 -fmessage-length=0 -pipe -Wno-trigraphs -fpascal-strings -fasm-blocks -Os -mdynamic-no-pic -Wreturn-type -Wunused-variable -isysroot /Developer/SDKs/MacOSX10.5.sdk -fvisibility=hidden -fvisibility-inlines-hidden -mmacosx-version-min=10.5 -gdwarf-2 -iquote /Users/foo/waveform/build/waveform.build/Release/waveform.build/waveform-generated-files.hmap -I/Users/foo/waveform/build/waveform.build/Release/waveform.build/waveform-own-target-headers.hmap -I/Users/foo/waveform/build/waveform.build/Release/waveform.build/waveform-all-target-headers.hmap -iquote /Users/foo/waveform/build/waveform.build/Release/waveform.build/waveform-project-headers.hmap -F/Users/foo/waveform/build/Release -I/Users/foo/waveform/build/Release/include -I/opt/local/include -I/Users/foo/waveform/build/waveform.build/Release/waveform.build/DerivedSources/i386 -I/Users/foo/waveform/build/waveform.build/Release/waveform.build/DerivedSources -c /Users/foo/waveform/main.cpp -o /Users/foo/waveform/build/waveform.build/Release/waveform.build/Objects-normal/i386/main.o The (very simple) test program is listed below. I hope someone can spot the problem. It's driving me nuts. Cheers, Thijs PS: I'm using OS10.6.1 and Xcode 3.2.1 #include <iostream> #include <boost/shared_ptr.hpp> #include <boost/program_options.hpp> using namespace std; namespace po = boost::program_options; int main (int ac, char * av[]) { po::options_description desc("Allowed options"); desc.add_options() ("help", "produce help message") ("input-file,i", po::value< vector<string> >(), "input file") ; po::variables_map vm; po::store(po::parse_command_line(ac, av, desc), vm); /// << exception thrown here po::notify(vm); if (vm.count("help")) { cout << desc << "\n"; return 1; } if (vm.count("input-file")) { vector<string> input_files = vm["input-file"].as< vector<string> >(); vector<string>::const_iterator it = input_files.begin(); for(; it!=input_files.end(); ++it) cout<< *it << endl; } else { cout << "No input file(s).\n"; } return 0; }

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[rfc] a library for gesture recognition, speech recognition, and synthesis
by Stjepan Rajko 27 Oct '09

27 Oct '09

Hello, For the past few years I've been working on the AME Patterns library - a generic library for modeling, recognition and synthesis of sequential patterns. So far it's been applied mostly to gesture recognition (e.g., recognition of mouse gestures, full body gestures from video or motion capture data, accelerometer gestures), but recently it has also shown some good results on speech datasets. It can also be used to synthesize the same kinds of patterns it can recognize (e.g., you could use it to synthesize a gesture or speech, or purely numerical patterns). The library provides support for hidden Markov models and other related models. The design is concept-based, and the library uses the Boost Graph Library, Boost.Range (including the RangeEx extension), Boost.Fusion, Boost.Math, Boost.Random, and other boost libraries. The documentation for the library is available here: http://ame4.hc.asu.edu/amelia/patterns/ However, the documentation is lacking, so I'm curious to know which parts of the functionality (if any) are of interest to the boost community, so I know what parts of the documentation to focus on. I am also considering proposing a presentation of this library to BoostCon. The library is currently released under the GPL, which I realize is not acceptable to some. Please let me know your thoughts. If anyone is interested in using this library, please let me know what you'd like to use it for and I'd be happy to help you get started. Kind regards, Stjepan

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Information about create_only and open_or_create
by manish4gupta 26 Oct '09

26 Oct '09

Hi, I am working on shared memory. I am successful in using it but I am trying to optimize my code. I just want to know the differences between create_only and open_or_create. As far as i know, create_only creates the shared memory with given size, while open_or_create can open and create both. But If I use open_or_create instead of create-only, i am getting interprocess exception. Why? Please help. Thanks in advance. -- View this message in context: http://www.nabble.com/Information-about-create_only-and-open_or_create-tp25… Sent from the Boost - Users mailing list archive at Nabble.com.

3 7

'class' : missing tag name - compilation errors in two boost headers (shared_ptr and is_function_ptr_tester.hpp) in my project
by BKnoth 26 Oct '09

26 Oct '09

I'm stuck on basic compilation issues in boost files that get included in my source code. The errors turn up in boost headers. Any help is appreciated! Thanks. I'm using Boost 1.40.0 MSVC Version 2008 - V 9.0.30729.1 SP In both shared_ptr.hpp and is_function_ptr_tester.hpp I get the same compilation error: MSVC error: error C2332: 'class' : missing tag name Here are the specific lines from the two files (I inserted a "Error Here!!! comment on the offending lines): ---------------- in shared_ptr.hpp (line 146): #if !defined( BOOST_NO_SFINAE ) && !defined( BOOST_NO_TEMPLATE_PARTIAL_SPECIALIZATION ) && !defined( BOOST_NO_AUTO_PTR ) // rvalue auto_ptr support based on a technique by Dave Abrahams template< class T, class R > struct sp_enable_if_auto_ptr // Error Here!!! { }; ---------------- in is_function_ptr_tester.hpp (line 37): #if !defined(BOOST_TT_PREPROCESSING_MODE) // pre-processed code, don't edit, try GNU cpp with // cpp -I../../../ -DBOOST_TT_PREPROCESSING_MODE -x c++ -P filename template <class R > // Error Here!!! yes_type is_function_ptr_tester(R (*)()); ------------------- The second error traces back to boost_1_40_0/boost/exception/all.hpp as shown in the extensive include hierarchy list below: > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/exception/all.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/exception/diagnostic_information.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/exception/get_error_info.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/exception/exception.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/exception/detail/error_info_impl.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/exception/detail/type_info.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/shared_ptr.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/exception/detail/exception_ptr_base.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/utility/enable_if.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/exception/current_exception_cast.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/exception/error_info.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/exception/exception.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/exception/get_error_info.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/exception/info.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/exception/exception.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/exception/to_string_stub.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/exception/to_string.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/utility/enable_if.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/exception/detail/is_output_streamable.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/exception/detail/object_hex_dump.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/exception/detail/type_info.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/assert.hpp > Note: including file: C:\Program Files\Microsoft Visual Studio 9.0\VC\include\assert.h > Note: including file: C:\Program Files\Microsoft Visual Studio 9.0\VC\include\crtdefs.h > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/exception/detail/error_info_impl.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/shared_ptr.hpp > Note: including file: C:\Program Files\Microsoft Visual Studio 9.0\VC\include\map > Note: including file: C:\Program Files\Microsoft Visual Studio 9.0\VC\include\xtree > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/exception/info_tuple.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/exception/info.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/tuple/tuple.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/static_assert.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/detail/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/ref.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/utility/addressof.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/detail/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/bool.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/bool_fwd.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/adl_barrier.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/adl.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/msvc.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/intel.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/gcc.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/detail/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/gcc.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/integral_c_tag.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/adl_barrier.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/static_constant.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/static_constant.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/detail/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/tuple/detail/tuple_basic.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/cv_traits.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/add_const.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/type_trait_def.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/template_arity_spec.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/int.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/int_fwd.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/adl_barrier.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/nttp_decl.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/nttp.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/msvc.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/integral_wrapper.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/integral_c_tag.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/static_cast.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/nttp_decl.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/static_constant.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/cat.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/config/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/template_arity_fwd.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/preprocessor/params.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/preprocessor.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/comma_if.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/punctuation/comma_if.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/config/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/control/if.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/config/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/control/iif.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/config/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/logical/bool.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/config/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/facilities/empty.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/punctuation/comma.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/repeat.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/repetition/repeat.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/cat.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/config/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/debug/error.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/cat.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/config/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/detail/auto_rec.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/config/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/control/iif.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/tuple/eat.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/config/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/inc.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/arithmetic/inc.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/config/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/cat.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/lambda.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/ttp.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/msvc.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/gcc.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/ctps.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/overload_resolution.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/lambda_support.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/lambda.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/type_trait_undef.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/add_volatile.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/type_trait_def.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/template_arity_spec.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/int.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/template_arity_fwd.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/preprocessor/params.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/lambda.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/overload_resolution.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/lambda_support.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/type_trait_undef.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/add_cv.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/type_trait_def.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/template_arity_spec.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/int.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/template_arity_fwd.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/preprocessor/params.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/lambda.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/overload_resolution.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/lambda_support.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/type_trait_undef.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/is_const.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/detail/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/cv_traits_impl.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/detail/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/bool_trait_def.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/template_arity_spec.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/int.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/template_arity_fwd.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/preprocessor/params.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/lambda.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/overload_resolution.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/integral_constant.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/bool.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/integral_c.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/integral_c_fwd.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/adl_barrier.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/ctps.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/static_constant.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/integral_wrapper.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/integral_c_tag.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/static_cast.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/nttp_decl.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/static_constant.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/preprocessor/cat.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/bool.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/lambda_support.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/bool_trait_undef.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/is_volatile.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/detail/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/cv_traits_impl.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/bool_trait_def.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/template_arity_spec.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/int.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/template_arity_fwd.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/preprocessor/params.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/lambda.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/overload_resolution.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/integral_constant.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/bool.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/lambda_support.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/bool_trait_undef.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/remove_const.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/is_volatile.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/broken_compiler_spec.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/lambda_support.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/cv_traits_impl.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/detail/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/type_trait_def.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/template_arity_spec.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/int.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/template_arity_fwd.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/preprocessor/params.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/lambda.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/overload_resolution.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/lambda_support.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/type_trait_undef.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/remove_volatile.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/is_const.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/broken_compiler_spec.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/cv_traits_impl.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/detail/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/type_trait_def.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/template_arity_spec.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/int.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/template_arity_fwd.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/preprocessor/params.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/lambda.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/overload_resolution.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/lambda_support.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/type_trait_undef.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/remove_cv.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/broken_compiler_spec.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/cv_traits_impl.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/detail/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/type_trait_def.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/template_arity_spec.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/int.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/template_arity_fwd.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/preprocessor/params.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/lambda.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/overload_resolution.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/lambda_support.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/type_trait_undef.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/function_traits.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/is_function.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/is_reference.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/detail/workaround.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/bool_trait_def.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/template_arity_spec.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/int.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/template_arity_fwd.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/preprocessor/params.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/lambda.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/config/overload_resolution.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/integral_constant.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/bool.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/mpl/aux_/lambda_support.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/bool_trait_undef.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/false_result.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/config.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/is_function_ptr_tester.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/detail/yes_no_type.hpp > Note: including file: C:\Program Files\boost\boost_1_40_0\boost/type_traits/config.hpp > c:\program files\boost\boost_1_40_0\boost\type_traits\detail\is_function_ptr_tester.hpp(37) : error C2332: 'class' : missing tag name

3 6

circular_buffer::erase in constant time
by Luca Cappa 26 Oct '09

26 Oct '09

Hello, is it possible to remove the first bunch of elements of a circular_buffer with constant complexity time? Unfortunately using any (r)erase function the complexity is linear. To give an idea, it could be implemented like this: /// Erase the first pCount element from the buffer void begin_erase (size_t pCount) { BOOST_ASSERT(pCount <= size ()); circular_buffer<Type>::add (m_first, pCount); m_size -= pCount;; } but this is not taking into account deletion of the deleted items (could they be deleted when they are overwritten? Or the stored type does not need to be destroyed at all), and many other details which are known to me. I am asking this 'cause I would like to make my circular_buffer class to be STL compliant container, but before doing it myself, I would like to evaluate if I could derive (or use aggregation) directly from circular_buffer and save me a lot of work. Thanks, Luca

2 3

[Asio] Problem with streambuf example code
by Dylan Klomparens 26 Oct '09

26 Oct '09

Hello, I've attempted to compile a portion of the example source code for the Asio streambuf class. The code attempts to convert a streambuf to a const_buffers_type, to be used in receiving data from a UDP socket. The example can be found at " http://www.boost.org/doc/libs/1_40_0/doc/html/boost_asio/reference/streambu…". The code in question is as follows: boost::asio::streambuf b; // reserve 512 bytes in output sequence boost::asio::streambuf::const_buffers_type bufs = b.prepare(512); For simplicity, I tried compiling only these two lines but I receive this compilation error: error C2440: 'initializing' : cannot convert from 'boost::asio::basic_streambuf<>::mutable_buffers_type' to 'boost::asio::const_buffers_1' Am I missing something obvious? It's my understanding that mutable buffers can always be converted to constant buffers. Why is the second line problematic? -- Dylan

2 1

[Boost.Python] Using Weak Ptrs with Boost Python?
by Dan Bailey 26 Oct '09

26 Oct '09

Trying to set up a dependency in C++ with a parent-child relationship. The parent contains the child and the child has a weak pointer to the parent. I would also like to be able to derive from the parent in Python. However, when I do this, I get a weak pointer error connecting up this parent-child relationship. C++ code: #include <boost/python.hpp> #include <boost/shared_ptr.hpp> #include <boost/enable_shared_from_this.hpp> using namespace boost; using namespace boost::python; struct Child; struct Parent : public enable_shared_from_this<Parent> { void initialize(); shared_ptr<Child> m_child; }; struct Child: public enable_shared_from_this<Child> { void setParent(shared_ptr<Parent> ptr); weak_ptr<Parent> m_parent; }; void Parent::initialize() { shared_ptr<Child> ptr(new Child); m_child = ptr; m_child->setParent(shared_from_this()); } void Child::setParent(shared_ptr<Parent> ptr) { m_parent = ptr; } static PyObject* create(PyObject* object) { PyObject* instance = PyObject_CallObject(object, NULL); Parent* parent = extract<Parent*>(instance); parent->initialize(); return instance; } Python binding: BOOST_PYTHON_MODULE(test_module) { class_<Parent>("Parent"); def("create", &create); } Python code: from test_module import * class Test(Parent): def __init__(self): Parent.__init__(self) n = create(Test) Error: Traceback (most recent call last): File "main.py", line 8, in <module> n = create(Test) RuntimeError: tr1::bad_weak_ptr If I try and convert the extracted pointer to Parent into a shared_ptr, I get a free() invalid pointer error in Python. Is there a way of getting round this problem or should I give up using weak pointers with Boost Python?

2 1

[result_of]
by er 26 Oct '09

26 Oct '09

Hi All, I've noticed that if do, class A: F{ template<typename S> struct result{}; template<typename A1,typename X> struct result<A1(X)>{ typedef ... type; }; }; result_of<A(X)>::type tries to deduce the result type from F (not accessible because private), so I'm left with having to keep F in a variable: class A{ // ... private: F f; }; Any suggestion for keeping F as a private base?

2 3

Re: [Boost-users] [Proto] Bug in 1.40 : uncomplete type in matches
by christophe henry 26 Oct '09

26 Oct '09

Hi Joel, I think I got bitten by this one and Eric corrected it in the trunk. Try to add in traits.hpp after BOOST_PROTO_DEFINE_UNARY_METAFUNCTION(complement) the following line: BOOST_PROTO_DEFINE_UNARY_METAFUNCTION(address_of) Christophe _________________________________________________________________ Windows Live: Make it easier for your friends to see what you’re up to on Facebook. http://www.microsoft.com/middleeast/windows/windowslive/see-it-in-action/so…

3 2

seg fault
by John Robertson 26 Oct '09

26 Oct '09

I tried typedef string Colour; struct edge_properties { vector < set< Colour > & > eColours; } But it did not compile. Shouldn't it ? Thanks -JR

3 3

[fusion] vector slicing (sort of)
by Jean-Louis Leroy 26 Oct '09

26 Oct '09

I am a bit surprised that this compiles: vector<char, int> v2; vector<char> v1(v2); v1 = v2; J-L

3 3

[Boost.Test]: output_test_stream and wchar_t (i.e. woutput_test_stream)?
by Boris Dušek 25 Oct '09

25 Oct '09

Hi, I am using Boost.Test and wanted to use the output_test_stream, however found out that it's stream of chars and my app uses strictly wchar_t. I also found that the output_test_stream inherits from basic_wrap_stringstream<char>::wrapped_stream - is there any plan to templatize output_test_stream itself? For now I have resorted to simply using std::wstringstream as a workaround. Thanks, Boris

2 1

function calling convensions
by Sean Farrow 25 Oct '09

25 Oct '09

Hi: I need to use the stdcall calling convension for a dll that I'm writing. When ever I do this with boost, I get the following errors: ... Creating library d:\Work\Access For Everyone\GHG\TPProductsZW\Debug\TPProductsZW.lib and object d:\Work\Access For Everyone\GHG\TPProductsZW\Debug\TPProductsZW.exp TPProductsZW.obj : error LNK2019: unresolved external symbol "class boost::system::error_category const & __stdcall boost::system::get_system_category(void)" (?get_system_category@system@boost@@YGABVerror_category@12@XZ) referenced in function "void __cdecl boost::system::`dynamic initializer for 'system_category''(void)" (??__Esystem_category@system@boost@@YAXXZ) TPProductsZW.obj : error LNK2019: unresolved external symbol "class boost::system::error_category const & __stdcall boost::system::get_generic_category(void)" (?get_generic_category@system@boost@@YGABVerror_category@12@XZ) referenced in function "void __cdecl boost::system::`dynamic initializer for 'generic_category''(void)" (??__Egeneric_category@system@boost@@YAXXZ) d:\Work\Access For Everyone\GHG\TPProductsZW\Debug\TPProductsZW.dll : fatal error LNK1120: 2 unresolved externals Does anyone know how to solve this issue? I'm building statically, and using visual studio c++ 2008, I'm also using __declspec(dllexport) Regards Sean. Results

2 1

[Proto] Bug in 1.40 : uncomplete type in matches
by joel 25 Oct '09

25 Oct '09

I just switched from 39 to 40 and my proto code that was working doesn't anymore. I define a grammar that matches any terminal, any nary functions except for address_of and comma like this : struct grammar : bp::or_< bp::terminal< block<bp::_,bp::_> > , meta::lambda_term< boost::is_arithmetic > , bp::and_< bp::nary_expr< bp::_, bp::vararg< grammar > > , bp::not_< meta::low_level<bp::_> > , bp::not_< meta::stream<bp::_,bp::_> > > > {}; where lambda_term is : template< template<class> class Lambda > struct lambda_term : boost::proto::and_< boost::proto::terminal<boost::proto::_> , boost::proto::if_<Lambda<boost::proto::_value>()> > {}; When i compile any code that instanciate my grammar, i got : /usr/local/include/boost-1_40/boost/proto/matches.hpp:304: error: invalid use of incomplete type ‘struct boost::proto::op::address_of<boost::proto::wildcardns_::_>’ While I got no error in 1.39 Do I miss some include of core proto file that wasn't needed before ? -- ___________________________________________ Joel Falcou - Assistant Professor PARALL Team - LRI - Universite Paris Sud XI Tel : (+33)1 69 15 66 35

1 1

[exception] array tags
by Diederick C. Niehorster 25 Oct '09

25 Oct '09

Hi, I have just discovered boost::exception and am very happy I did. One thing i would like to do, but haven't yet figure out: I have a matrix class for which I want to throw exceptions when out_of_range requests are made. One of the extra tags I want to attach is the dimensions of the matrix and it would be neat if i can put those in an array. Defining the tag is no problem, getting the info in there is: defining: typedef boost::error_info<struct tag_std_range_size,size_t[2]> std_range_size; I have tried: << std_range_size({m_nRows, m_nCols}); size_t a[2] = {m_nRows, m_nCols}; << std_range_size(a); and desperately even << std_range_size() = {m_nRows, m_nCols}; which doesn't make much sense Can I do such a thing, should I use something else than a plain array or do i have to resort to two separate tags for nRows adn nCols respectively? Thank you for your help and advice! Best, Diederick

3 11

GIL documentation
by Valmor de Almeida 24 Oct '09

24 Oct '09

Hello, Is there a printable version of the flash video tutorial at http://opensource.adobe.com/gil/presentation/index.htm for the Generic Image Library? Thanks, -- Valmor

1 0

Re: [Boost-users] Boost-users Digest, Vol 2158, Issue 1
by Ben 24 Oct '09

24 Oct '09

> Ahhh - so try > > ar >> static_cast<A* &>(a2p); > > Robert Ramey > > troy d. straszheim wrote: >> Ben wrote: >>> { >>> std::ifstream ifs(fname); >>> boost::archive::binary_iarchive ar(ifs); >>> ar >> static_cast<A*>(a2p); >>> } >> >> You're trying to write to an rvalue. Note that >> >> int *ip = 0; >> static_cast<int*>(ip) = 0; // lvalue required as >> // left operand of assignment >> >> doesn't compile either... Wow, that was silly of me. Thanks for the quick response. Any clue to the main question I had (repeated below) about serializing classes with references? I don't think it's an rvalue thing, as the problem occurs even in the save_construct_data bit. Generally, I'm trying to copy what the documentation says to do. Best, Ben Date: Fri, 23 Oct 2009 15:27:48 -0700 From: Ben <midfield(a)gmail.com> To: boost-users(a)lists.boost.org Subject: [Boost-users] [serialization] Serializing a reference Message-ID: <9157df230910231527x686ff3b4n16ec1e9eabc9515(a)mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 Hello Boost Experts -- And now for my real question. Again, g++ 4.2.1, OS X 10.6.1, boost 1.40. I'm trying to follow the instructions in the document for serializing classes with reference members, which suggests I serialize them as pointers. First, a program which works, that uses pointers and not references: #include <iostream> #include <fstream> #include <boost/archive/binary_oarchive.hpp> #include <boost/archive/binary_iarchive.hpp> struct A { int v; template<class Ar> void serialize(Ar & ar, const unsigned int ver) { ar & v; } }; struct B { A *ap; B(A *ap_) : ap(ap_) {} template<class Ar> void serialize(Ar & ar, const unsigned int ver) {} }; template<class Ar> void save_construct_data(Ar & ar, const B * b, const unsigned int ver) { ar << b->ap; } template<class Ar> void load_construct_data(Ar & ar, B * b, const unsigned int ver) { A * ap_; ar >> ap_; ::new(b)B(ap_); } int main(int ac, char ** argv) { A a; a.v = 10; B * b1p; b1p = new B(&a); const char * fname = "test.bin"; { std::ofstream ofs(fname); boost::archive::binary_oarchive ar(ofs); ar << b1p; } B * b2p; { std::ifstream ifs(fname); boost::archive::binary_iarchive ar(ifs); ar >> b2p; } std::cout << b2p->ap->v << std::endl; return 0; } What I would really like to do is to modify this program so that class B has a reference to class A instead of a pointer. The documentation suggests I do the following: "This raises the question of how and where the objects being referred to are stored and how are they created. Also there is the question about references to polymorphic base classes. Basically, these are the same questions that arise regarding pointers. This is no surprise as references are really a special kind of pointer. We address these questions by serializing references as though they were pointers." The example given after this serializes the address of the referenced object, similar to the above. My translation of that code is: #include <iostream> #include <fstream> #include <boost/archive/binary_oarchive.hpp> #include <boost/archive/binary_iarchive.hpp> struct A { int v; template<class Ar> void serialize(Ar & ar, const unsigned int ver) { ar & v; } }; struct B { A &a; B(A &a_) : a(a_) {} template<class Ar> void serialize(Ar & ar, const unsigned int ver) {} }; template<class Ar> void save_construct_data(Ar & ar, const B * b, const unsigned int ver) { ar << (&(b->a)); } template<class Ar> void load_construct_data(Ar & ar, B * b, const unsigned int ver) { A * ap_; ar >> ap_; ::new(b)B(*ap_); } int main(int ac, char ** argv) { A a; a.v = 10; B * b1p; b1p = new B(a); const char * fname = "test.bin"; { std::ofstream ofs(fname); boost::archive::binary_oarchive ar(ofs); ar << b1p; } B * b2p; { std::ifstream ifs(fname); boost::archive::binary_iarchive ar(ifs); ar >> b2p; } std::cout << b2p->a.v << std::endl; return 0; } This however fails to compile, with the message: Compilation started at Fri Oct 23 15:25:29 make -k debug make all "CXX_FLAGS = -g -fno-inline -m64 -I. -I.. -I/opt/local/include -Wall -Wextra -Wpointer-arith -Wcast-align -Wwrite-strings -Wconversion -Woverloaded-virtual -Wno-sign-compare -Wno-unused -fno-nonansi-builtins" \ "LD_FLAGS = -g -m64" g++ -g -fno-inline -m64 -I. -I.. -I/opt/local/include -Wall -Wextra -Wpointer-arith -Wcast-align -Wwrite-strings -Wconversion -Woverloaded-virtual -Wno-sign-compare -Wno-unused -fno-nonansi-builtins -c test.cc -o test.o test.cc: In function 'void save_construct_data(Ar&, const B*, unsigned int) [with Ar = boost::archive::binary_oarchive]': /opt/local/include/boost/serialization/serialization.hpp:148: instantiated from 'void boost::serialization::save_construct_data_adl(Archive&, const T*, unsigned int) [with Archive = boost::archive::binary_oarchive, T = B]' /opt/local/include/boost/archive/detail/oserializer.hpp:179: instantiated from 'void boost::archive::detail::pointer_oserializer<Archive, T>::save_object_ptr(boost::archive::detail::basic_oarchive&, const void*) const [with Archive = boost::archive::binary_oarchive, T = B]' test.cc:60: instantiated from here test.cc:27: error: no match for 'operator<<' in 'ar << (A*)b->B::a' /opt/local/include/boost/archive/detail/interface_oarchive.hpp:63: note: candidates are: Archive& boost::archive::detail::interface_oarchive<Archive>::operator<<(T&) [with T = A*, Archive = boost::archive::binary_oarchive] make[1]: *** [test.o] Error 1 make[1]: Target `all' not remade because of errors. make: *** [debug] Error 2 Compilation exited abnormally with code 2 at Fri Oct 23 15:25:30 What am I doing wrong? Best regards, Ben

1 0

compiling boost with mpi support
by Sean Farrow 24 Oct '09

24 Oct '09

Hi: I'm looking to compile boost with mpi support. I am using visual c++ 2008, what mpi libraries are supported. Where should I place the mpi library I wish to wrap, any pointers appreciated. Sean.

2 2

[serialization] Question about pointers and casting
by Ben 24 Oct '09

24 Oct '09

Dear Boost Experts -- I'm using g++ 4.2.1, OS X 10.6.1, boost 1.40, although I have also seen this on linux. In attempting to understand how boost::serialization works, I've stumbled across the following curiosity. The following program compiles and runs fine (I've eliminated diagnostic output which verifies the serialization.) #include <iostream> #include <fstream> #include <boost/archive/binary_oarchive.hpp> #include <boost/archive/binary_iarchive.hpp> struct A { int v; template<class Ar> void serialize(Ar & ar, const unsigned int ver) { ar & v; } }; int main(int ac, char ** argv) { A a; a.v = 10; A * a1p = &a; const char * fname = "test.bin"; { std::ofstream ofs(fname); boost::archive::binary_oarchive ar(ofs); ar << a1p; } A * a2p; { std::ifstream ifs(fname); boost::archive::binary_iarchive ar(ifs); ar >> a2p; } return 0; } However, if I add a static_cast<A*> to either a1p or a2p (which are already declared to be type A*) in the serialization / deserialization lines, it fails to compile: #include <iostream> #include <fstream> #include <boost/archive/binary_oarchive.hpp> #include <boost/archive/binary_iarchive.hpp> struct A { int v; template<class Ar> void serialize(Ar & ar, const unsigned int ver) { ar & v; } }; int main(int ac, char ** argv) { A a; a.v = 10; A * a1p = &a; const char * fname = "test.bin"; { std::ofstream ofs(fname); boost::archive::binary_oarchive ar(ofs); ar << static_cast<A*>(a1p); } A * a2p; { std::ifstream ifs(fname); boost::archive::binary_iarchive ar(ifs); ar >> static_cast<A*>(a2p); } return 0; } Compilation started at Fri Oct 23 14:31:17 make -k debug make all "CXX_FLAGS = -g -fno-inline -m64 -I. -I.. -I/opt/local/include -Wall -Wextra -Wpointer- arith -Wcast-align -Wwrite-strings -Wconversion -Woverloaded-virtual -Wno-sign-compare -Wno- unused -fno-nonansi-builtins" \ "LD_FLAGS = -g -m64" g++ -g -fno-inline -m64 -I. -I.. -I/opt/local/include -Wall -Wextra -Wpointer-arith -Wcast-align - Wwrite-strings -Wconversion -Woverloaded-virtual -Wno-sign-compare -Wno-unused -fno- nonansi-builtins -c test.cc -o test.o test.cc: In function 'int main(int, char**)': test.cc:25: error: no match for 'operator<<' in 'ar << a1p' /opt/local/include/boost/archive/detail/interface_oarchive.hpp:63: note: candidates are: Archive& boost::archive::detail::interface_oarchive<Archive>::operator<<(T&) [with T = A*, Archive = boost::archive::binary_oarchive] test.cc:33: error: no match for 'operator>>' in 'ar >> a2p' /opt/local/include/boost/archive/detail/interface_iarchive.hpp:60: note: candidates are: Archive& boost::archive::detail::interface_iarchive<Archive>::operator>>(T&) [with T = A*, Archive = boost::archive::binary_iarchive] make[1]: *** [test.o] Error 1 make[1]: Target `all' not remade because of errors. make: *** [debug] Error 2 Compilation exited abnormally with code 2 at Fri Oct 23 14:31:18 This completely boggles my mind. My limited understanding suggests the compiler should not be able to distinguish between the two programs! I can put the cast on either one of the two pointers and it fails, and using an old style cast to A* also fails. I seem to not understand what boost::serialization is doing generally, so I was hoping the answer to this question (which is obviously a theoretical curiosity and of no practical value) would lead to further insight. Best regards, Ben

3 2

boost.thread query
by Sean Farrow 23 Oct '09

23 Oct '09

Hi: I am considering using boost.threadfir a project and was wondering whether the function passed to boost.thread has to be of any pargicular type i.e void return. Secondly, if I don't call thread.join, will the thread continue executing? I'm terminating the thread with a windows event. Finally, is there a terminate function? Any help appreciated. Sean.

2 1

[serialization] Special case of abstract Interface serialization.
by Germán Diago 23 Oct '09

23 Oct '09

Hello. I have a problem which I think it's not documented, and I don't know how to solve it. The problem is the following: I have a framework with an Object base class. I have an interface IDrawable. Interfaces don't inherit Object. Now I have a container, which holds IDrawables. class IDrawable { virtual void draw() const = 0; } Container<IDrawable *> drawables; //holds IDrawables that I know they are Objects. I do know that inside the drawables, objects are held, so now I want to serialize that container: ar << drawables; IDrawable does not hold any data, but Object does. So I want to serialize these objects in a polymorphic way, so that I can save anything derived from Object which is pointed by an IDrawable. Thanks for your time.

1 0

[serialization] Cannot serialize multimap.
by Germán Diago 23 Oct '09

23 Oct '09

Hi. I have a multimap<A, B> where A and B are not default constructible. I provided load_construct_data and save_construct_data for both, but the library doesn't allow me to serialize this multimap. It fails at compile time: It seems to be the library trying to use default constructors. Does anyone know any way or a workaround or whatever to make this compile correctly? Thanks in advance.

2 2

[asio] icmp example not working on Windows 2000
by Wolfgang Fertsak 23 Oct '09

23 Oct '09

Hello! The icmp example provided with the asio-library throws a system error with code 10044 "The support for the specified socket type does not exist in this address family." when compiled with _WIN32_WINNT 0x0500 and executed on an Win2000 machine. The error comes from the gai_echeck()-function which is called with family AF_INET and socktype SOCK_RAW: inline int gai_echeck(const char* host, const char* service, int flags, int family, int socktype, int protocol) { .... switch (family) { case AF_UNSPEC: break; case AF_INET: case AF_INET6: if (socktype != 0 && socktype != SOCK_STREAM && socktype != SOCK_DGRAM) return EAI_SOCKTYPE; ... I have attached the callstack for call to gai_echeck() I'm using Visual Studio 2005 and boost 1.39. I changed the return value of gai_echeck() back to 0 in the debugger and then the rest of the icmp(ping) example ran without any apparent problems. Best regards, Wolfgang boost::asio::detail::socket_ops::gai_echeck(const char * host=0x0012fad0, const char * service=0x0012faa8, int flags=0, int family=2, int socktype=3, int protocol=1) Line 1380 C++ boost::asio::detail::socket_ops::getaddrinfo_emulation(const char * host=0x0012fad0, const char * service=0x0012faa8, const addrinfo * hintsp=0x0012fa78, addrinfo * * result=0x0012faf0) Line 1441 + 0x1d bytes C++ boost::asio::detail::socket_ops::WspiapiGetAddrInfo(const char * host=0x0012fad0, const char * service=0x0012faa8, const addrinfo * hints=0x0012fa78, addrinfo * * result=0x0012faf0, boost::system::error_code & ec={...}) Line 1801 + 0x15 bytes C++ boost::asio::detail::resolver_service<boost::asio::ip::icmp>::resolve(boost::shared_ptr<void> & __formal={...}, const boost::asio::ip::basic_resolver_query<boost::asio::ip::icmp> & query={...}, boost::system::error_code & ec={...}) Line 147 + 0x51 bytes C++ boost::asio::ip::resolver_service<boost::asio::ip::icmp>::resolve(boost::shared_ptr<void> & impl={...}, const boost::asio::ip::basic_resolver_query<boost::asio::ip::icmp> & query={...}, boost::system::error_code & ec={...}) Line 105 + 0x1b bytes C++ boost::asio::ip::basic_resolver<boost::asio::ip::icmp,boost::asio::ip::resolver_service<boost::asio::ip::icmp> >::resolve(const boost::asio::ip::basic_resolver_query<boost::asio::ip::icmp> & q={...}) Line 98 + 0x1d bytes C++ pinger::pinger(boost::asio::io_service & io_service={...}, const char * destination=0x00324199) Line 32 + 0x1a bytes C++ main(int argc=2, char * * argv=0x00324170) Line 155 + 0x16 bytes C++

1 1

[Program Options] first.cpp compile problem
by philip tucker 23 Oct '09

23 Oct '09

Hello, I'm an enthusiastic and grateful user of boost (multi_index_set, accumulators, much else), so first thanks a lot to you all. But I can't get program_options/example/first.cpp to compile. I am sure it's something simple I've missed, but I can't tell what. I am running boost 1.40, gcc version 4.0.1, on a new iMac. output: cc -g -o test obj/pgmopts.o -lstdc++ Undefined symbols: "boost::program_options::detail::cmdline::run()", referenced from: boost::program_options::basic_command_line_parser<char>::run () in pgmopts .o "boost::program_options::options_description_easy_init::operator() (char const* , boost::program_options::value_semantic const*, char const*)", referenced from: _main in pgmopts.o "boost::program_options::validation_error::what() const", referenced from: vtable for boost::exception_detail::error_info_injector<boost::program_opt ions::invalid_option_value>in pgmopts.o vtable for boost::program_options::invalid_option_valuein pgmopts.o vtable for boost::exception_detail::clone_impl<boost::exception_detail::er ror_info_injector<boost::program_options::invalid_option_value> >in pgmopts.o ... Help! and thanks again.

2 2

[BGL] seg fault
by John Robertson 23 Oct '09

23 Oct '09

Replacing vector < set< Colour > > eColours; with std::map < int, set< Colour > > emColours; in edge properties. Using property_map < graph_t, map < int, <set< Colour > > > edge_properties::*>::type emColours_map = get(&edge_properties::emColours, g); But get compiler error: template argument 2 invalid. Thanks -JR

2 2

[BGL] seg fault
by John Robertson 23 Oct '09

23 Oct '09

Something is goofy. Sometimes only part of my mail message is shown in the boost users list. Part is deleted. Using yahoo mail. Maybe its their new version thats messed up. -JR

1 0

[BGL]seg fault : resend
by John Robertson 23 Oct '09

23 Oct '09

Trying to replace vector with std::map as follows. Replace typedef string Colour; struct edge_properties { vector < set< Colour > > eColours; } with typedef string Colour; struct edge_properties { std::map < int, set< Colour > > emColours; } Using property_map < graph_t, map < int, <set< Colour > > > edge_properties::*>::type emColours_map =get(&edge_properties::emColours,g); getting compiler errors error: template argument 2 is invalid error: template argument 4 is invalid Thanks -JR ReplyReply AllMove...InboxBGLGo to Previous message | Go to Next message | Back to Messages Select Message EncodingASCII (ASCII)Greek (ISO-8859-7)Greek (Windows-1253)Latin-10 (ISO-8859-16)Latin-3 (ISO-8859-3)Latin-6 (ISO-8859-10)Latin-7 (ISO-8859-13)Latin-8 (ISO-8859-14)Latin-9 (ISO-8859-15)W. European (850)W. European (CP858)W. European (HPROMAN8)W. European (MACROMAN8)W. European (Windows-1252)Armenia (ARMSCII-8)Baltic Rim (ISO-8859-4)Baltic Rim (WINDOWS-1257)Cyrillic (866)Cyrillic (ISO-8859-5)Cyrillic (KOI8-R)Cyrillic (KOI8-RU)Cyrillic (KOI8-T)Cyrillic (KOI8-U)Cyrillic (WINDOWS-1251)Latin-2 (852)Latin-2 (ISO-8859-2)Latin-2 (WINDOWS-1250)Turkish (ISO-8859-9)Turkish (WINDOWS-1254)Arabic (ISO-8859-6, ASMO-708)Arabic (WINDOWS-1256)Hebrew (856)Hebrew (862)Hebrew (WINDOWS-1255)Chinese Simplified (GB-2312-80)Chinese Simplified (GB18030)Chinese Simplified (HZ-GB-2312)Chinese Simplified (ISO-2022-CN)Chinese Simplified (WINDOWS-936)Chinese Trad.-Hong Kong (BIG5-HKSCS)Chinese Traditional (BIG5)Chinese Traditional (EUC-TW)Japanese (SHIFT_JIS)Japanese (EUC-JP)Japanese (ISO-2022-JP)Korean (ISO-2022-KR)Korean (EUC-KR)Thai (TIS-620-2533)Thai (WINDOWS-874)Vietnamese (TCVN-5712)Vietnamese (VISCII)Vietnamese (WINDOWS-1258)Unicode (UTF-7)Unicode (UTF-8)Unicode (UTF-16)Unicode (UTF-32)| Full Headers Mail Search #yui-main { background-color:#D6DEEC }gLaunchProfile.stop('RT_RP', false);gLaunchProfile.start('RT_BP');gLaunchProfile.start('LD_JS_BP');YAHOO.mc.intl = "us";YAHOO.mc.IM_TOGGLE_STRINGS = {"im_settings_helpurl" : "http://help.yahoo.com/l/us/yahoo/mail/classic/chat/","im_settings_help_toggle" : "1","im_enable_mobile_l10n": "1","im_sign_in": "true","im_time_format_am" : "AM","im_time_format_pm" : "PM","im_date_time_format" : "{M}/{d}/{yy} {h}:{mm} {A}"};if (YAHOO.mc.page.generic) {YAHOO.mc.page.generic.initComposeMenu();}YAHOO.mc.page.BasieSpaceId= "398300973";YAHOO.mc.page.TriggerULT=true;YAHOO.util.Event.onDOMReady(function () {sessionMgr.initSession();sessionMgr.loadFromBookmarks();});var adPrefetch = true;var isAdPrefetched = false;if (document.getElementById("JSMailOptionsLink")) {document.getElementById("JSMailOptionsLink").href = optionObj["JSMailOptionsLink"];}if (document.getElementById("chk_pop_options") || document.getElementById("chk_pop_error") || document.getElementById("option_bad_folder") || document.getElementById("folders_options_spam") || document.getElementById("folders_options_sent") || document.getElementById("spam_edit_options")) {YAHOO.util.Event.addListener(YAHOO.mc.optionsID, "click", displayOptions, optionObj);}YAHOO.namespace("fcue"); YAHOO.mc.FCUE_METADATA = {imInit:"",imSent:"",fcElap:"1254813133500",fcEcap:"2",fcNag:"",inEcap:"",inElap:""};YAHOO.mc.noCues = false;YAHOO.mc.msgrLoaded = false;YAHOO.mc.loadMsgr = function () {clearTimeout(YAHOO.mc.msgrLoadID);if (hasIM && !YAHOO.mc.msgrLoaded) {YAHOO.mc.msgrLoaded = true;YAHOO.util.Get.script("http://mail.yimg.com/d/combo?/mg/8_0_4/js/im_blue_all.js&/mg/8_0_4/js/us_st…");}};YAHOO.util.Event.on(window, "load", YAHOO.mc.loadMsgr);YAHOO.mc.msgrLoadID = setTimeout(YAHOO.mc.loadMsgr, 5000); if (YAHOO.mc.page.galaxy) { YAHOO.mc.page.galaxy.cleanup(); } YAHOO.mc.page.galaxy = new GalaxyHandler(); function myMsgHandler(fid, mid) { YAHOO.mc.page.galaxy.evtCallBack("showMessage?fid=" + fid + "&mid=" + mid + "&.rand=557745628"); } YAHOO.galaxy.setMsgListener(myMsgHandler); function myFolderHandler(fid, filterBy) { var filterUrl = ""; if (filterBy) { filterUrl += "&filterBy=" + filterBy; } YAHOO.mc.page.galaxy.evtCallBack("showFolder?fid=" + fid + filterUrl + "&.rand=557745628"); } YAHOO.galaxy.setFolderListener(myFolderHandler); gLaunchProfile.stop('LD_JS_BP', false);resizeLeftPane();gLaunchProfile.start('RT_AD_FOOT');

1 0

[BGL] seg fault
by John Robertson 23 Oct '09

23 Oct '09

Trying to replace vector with std::map as follows. Replace typedef string Colour; struct edge_properties { vector < set< Colour > > eColours; } with typedef string Colour; struct edge_properties { std::map < int, set< Colour > > emColours; } Using property_map < graph_t, map < int, <set< Colour > > > edge_properties::*>::type emColours_map =get(&edge_properties::emColours,g); getting compiler errors error: template argument 2 is invalid error: template argument 4 is invalid Thanks -JR

1 0

[BGL] seg fault
by John Robertson 22 Oct '09

22 Oct '09

Could I set the size of a set< String> at instantiation time? -JR

1 0

[BGL] seg fault : more readable
by John Robertson 22 Oct '09

22 Oct '09

The following compiles and runs. typedef string Colour; struct edge_properties { vector < set< Colour > > eColours; } //get a reference to the vector of the sets of colours of some edge. vector < set<Colour> > & v_colour_outset = get(m_eColours_map,*out_iter); // Here *out_iter is some edge. //Add a set<Colour> to v_colour_outset ie. to get(m_eColours_map,*out_iter) . set<Colour> colour_set; v_colour_outset.push_back(colour_set); // get a reference to one of the set<colour> in get(m_eColours_map,*out_iter) . set<Colour> & outcset = v_colour_outset[1]; //or [0], or any elt.. But when I try to add a new colour to this set outcset.insert("Blue"); I get segfault. My guess is that there is a predetermined size for colour_set, and when it is push_backed into v_colour_outset, a new colour cannot be added into it. I tried to create a vector of set<Colour> references as follows. struct edge_properties { vector < set< Colour > & > eColours; } But it did not compile. ( shouldn't it? ) Whats the best solution to this problem. Thanks - JR ReplyReply AllMove...InboxBGLGo to Previous message | Go to Next message | Back to Messages Select Message EncodingASCII (ASCII)Greek (ISO-8859-7)Greek (Windows-1253)Latin-10 (ISO-8859-16)Latin-3 (ISO-8859-3)Latin-6 (ISO-8859-10)Latin-7 (ISO-8859-13)Latin-8 (ISO-8859-14)Latin-9 (ISO-8859-15)W. European (850)W. European (CP858)W. European (HPROMAN8)W. European (MACROMAN8)W. European (Windows-1252)Armenia (ARMSCII-8)Baltic Rim (ISO-8859-4)Baltic Rim (WINDOWS-1257)Cyrillic (866)Cyrillic (ISO-8859-5)Cyrillic (KOI8-R)Cyrillic (KOI8-RU)Cyrillic (KOI8-T)Cyrillic (KOI8-U)Cyrillic (WINDOWS-1251)Latin-2 (852)Latin-2 (ISO-8859-2)Latin-2 (WINDOWS-1250)Turkish (ISO-8859-9)Turkish (WINDOWS-1254)Arabic (ISO-8859-6, ASMO-708)Arabic (WINDOWS-1256)Hebrew (856)Hebrew (862)Hebrew (WINDOWS-1255)Chinese Simplified (GB-2312-80)Chinese Simplified (GB18030)Chinese Simplified (HZ-GB-2312)Chinese Simplified (ISO-2022-CN)Chinese Simplified (WINDOWS-936)Chinese Trad.-Hong Kong (BIG5-HKSCS)Chinese Traditional (BIG5)Chinese Traditional (EUC-TW)Japanese (SHIFT_JIS)Japanese (EUC-JP)Japanese (ISO-2022-JP)Korean (ISO-2022-KR)Korean (EUC-KR)Thai (TIS-620-2533)Thai (WINDOWS-874)Vietnamese (TCVN-5712)Vietnamese (VISCII)Vietnamese (WINDOWS-1258)Unicode (UTF-7)Unicode (UTF-8)Unicode (UTF-16)Unicode (UTF-32)| Full Headers Mail Search #yui-main { background-color:#D6DEEC }gLaunchProfile.stop('RT_RP', false);gLaunchProfile.start('RT_BP');gLaunchProfile.start('LD_JS_BP');YAHOO.mc.intl = "us";YAHOO.mc.IM_TOGGLE_STRINGS = {"im_settings_helpurl" : "http://help.yahoo.com/l/us/yahoo/mail/classic/chat/","im_settings_help_toggle" : "1","im_enable_mobile_l10n": "1","im_sign_in": "true","im_time_format_am" : "AM","im_time_format_pm" : "PM","im_date_time_format" : "{M}/{d}/{yy} {h}:{mm} {A}"};if (YAHOO.mc.page..generic) {YAHOO.mc.page.generic.initComposeMenu();}YAHOO.mc.page.BasieSpaceId= "398300973";YAHOO.mc.page.TriggerULT=true;YAHOO.util.Event.onDOMReady(function () {sessionMgr.initSession();sessionMgr.loadFromBookmarks();});var adPrefetch = true;var isAdPrefetched = false;if (document.getElementById("JSMailOptionsLink")) {document.getElementById("JSMailOptionsLink").href = optionObj["JSMailOptionsLink"];}if (document.getElementById("chk_pop_options") || document.getElementById("chk_pop_error") || document.getElementById("option_bad_folder") || document.getElementById("folders_options_spam") || document.getElementById("folders_options_sent") || document.getElementById("spam_edit_options")) {YAHOO.util.Event.addListener(YAHOO.mc.optionsID, "click", displayOptions, optionObj);}YAHOO.namespace("fcue"); YAHOO.mc.FCUE_METADATA = {imInit:"",imSent:"",fcElap:"1254813133500",fcEcap:"2",fcNag:"",inEcap:"",inElap:""};YAHOO.mc.noCues = false;YAHOO.mc.msgrLoaded = false;YAHOO.mc.loadMsgr = function () {clearTimeout(YAHOO.mc.msgrLoadID);if (hasIM && !YAHOO.mc.msgrLoaded) {YAHOO.mc.msgrLoaded = true;YAHOO.util.Get.script("http://mail.yimg.com/d/combo?/mg/8_0_4/js/im_blue_all.js&/mg/8_0_4/js/us_st…");}};YAHOO.util.Event.on(window, "load", YAHOO.mc.loadMsgr);YAHOO.mc.msgrLoadID = setTimeout(YAHOO.mc.loadMsgr, 5000); if (YAHOO.mc.page.galaxy) { YAHOO.mc.page.galaxy.cleanup(); } YAHOO.mc.page.galaxy = new GalaxyHandler(); function myMsgHandler(fid, mid) { YAHOO.mc.page.galaxy.evtCallBack("showMessage?fid=" + fid + "&mid=" + mid + "&.rand=635860173"); } YAHOO.galaxy.setMsgListener(myMsgHandler); function myFolderHandler(fid, filterBy) { var filterUrl = ""; if (filterBy) { filterUrl += "&filterBy=" + filterBy; } YAHOO.mc.page.galaxy.evtCallBack("showFolder?fid=" + fid + filterUrl + "&.rand=635860173"); } YAHOO.galaxy.setFolderListener(myFolderHandler); gLaunchProfile.stop('LD_JS_BP', false);resizeLeftPane();gLaunchProfile.start('RT_AD_FOOT');

2 1

seg fault
by John Robertson 22 Oct '09

22 Oct '09

The following compiles and runs. typedef string Colour; struct edge_properties { vector < set< Colour > > eColours; } //get a reference to the vector of the sets of colours of some edge. vector < set<Colour> > & v_colour_outset = get(m_eColours_map,*out_iter); // Here *out_iter is some edge. //Add a set<Colour> to v_colour_outset ie. to get(m_eColours_map,*out_iter) . set<Colour> colour_set; v_colour_outset.push_back(colour_set); // get a reference to one of the set<colour> in get(m_eColours_map,*out_iter) . set<Colour> & outcset = v_colour_outset[1]; //or [0], or any elt. But when I try to add a new colour to this set outcset.insert("Blue"); I get segfault. My guess is that there is a predetermined size for colour_set, and when it is push_backed into v_colour_outset, a new colour cannot be added into it. I tried to create a vector of set<Colour> references as follows. struct edge_properties { vector < set< Colour > & > eColours; } But it did not compile. ( shouldn't it? ) Whats the best solution to this problem. Thanks - JR

1 0

[fusion] is there anything resembling a joint_view of 2 maps?
by er 22 Oct '09

22 Oct '09

Hi All, I am wondering if anyone knows of anything that resembles a joint_view of a pair of maps. typedef mpl::int_<1> key1_; typedef mpl::int_<2> key2_; typedef pair<key1_,int> pair1_; typedef pair<key2_,int> pair2_; typedef map<pair1_> map1_; typedef map<pair2_> map2_; map1_ m1( make_pair<key1_>(1) ); map2_ m2( make_pair<key2_>(2) ); typedef joint_view< map1_, map2_ > jv_; // not supposed to compile (?), yet it does: jv_ view(m1,m2); // but not this: // at_key<key1_>(view) // I have no choice (?) but create a new map, // although view helps a bit for initializing it: typedef map< pair1_, pair2_ > map3_; map3_ m3 = fusion::as_map(view); int n1 = fusion::at_key<key1_>(m3); BOOST_ASSERT(n1 == 1); int n2 = fusion::at_key<key2_>(m3); BOOST_ASSERT(n2 == 2);

3 6

[conversion] Release v0.3 : Changing the order of assign_to parameters + `tie' function
by vicente.botet 22 Oct '09

22 Oct '09

Hi, I have just released the version 0.3 of Boost.Conversion , which includes since my last publicly announced version 0.1: Version 0.3.0, Oct 22, 2009 Changing the order of to and from parameters on assign_to + Added `tie' function Incopatibility: * Changing the order of to and from parameters on assign_to. * Now boost/conversion/convert_to.hpp and boost/conversion/assign_to.hpp files are separated. New Features: * Added <boost/conversion.hpp> global file. * Added mca() function. * Added convert_to_via function. Test: * Added test for the new features Version 0.2.0, Mai 16, 2009 Adding array + fusion::tuples + Adaptation to Boost 1.39 New Features: * conversion between boost::array of explicitly convertible types. * conversion between Boost.Fusion sequences of explicitly convertible types. You can found all the detail for dowloading, documentation, ... in http://svn.boost.org/trac/boost/wiki/LibrariesUnderConstruction#Boost.Conve… I'd appreciate it if people could take a look, test it on their compiler and give me some feedback. Best regards, _____________________ Vicente Juan Botet Escribá

2 1

[Asio] Any port with an endpoint
by Ryan McConnehey 22 Oct '09

22 Oct '09

In windows there is the capability to create a socket with an address but leave the port number up to windows to select. Is this possible with the asio endpoint or will I always need to define "some" port number? Ryan

2 2

Re: [Boost-users] [signals2][review] The review of the signals2 library (formerly thread_safe_signals) begins today, Nov 1st
by Nat Goodspeed 22 Oct '09

22 Oct '09

[Sorry, I know I'm replying to a very old post, but this IS continuing the same exchange.] Frank Mori Hess wrote: > > On Wednesday 18 February 2009, Nat Goodspeed wrote: >> [snip - talking about boost::signals2::signal::connect() accepting a boost::bind expression containing a boost::shared_ptr] >> the >> shared_ptr copy stored in the boost::bind() result makes the referenced >> object effectively immortal. >> >> To my surprise, I find that it's not destroyed even when I explicitly >> disconnect the resulting connection. > It will get destroyed eventually. The signal cleans up its slot list little > by little during connect/invoke. It doesn't immediately remove disconnected > slots from the slot list since other threads might be using the same slot > list concurrently. It might be possible to make it immediately reset the > shared_ptr owning the slot though, leaving an empty shared_ptr in the slot > list, since that wouldn't invalidate any iterators. Frank, has this logic changed at all since Boost 1.39? I've bumped into a situation where the lazy cleanup is causing a crash. We've got a DLL containing a slot stored in a signal used by the main program. Before attempting to unload the DLL, we disconnect the slot -- but the signal retains a reference to memory invalidated by the departure of the DLL, resulting in badness. Would updating to Boost 1.40 solve this problem? Or is there some explicit cleanup call we could/should make with a 1.39 boost::signals2::signal? Or could you suggest how to patch the logic as you describe above? Many thanks.

4 6

shared_ptr and inheritance
by Daniele Barzotti 22 Oct '09

22 Oct '09

Maybe this is a simple question but... Suppose to have: template<typename T> class Base {...}; template<typename T> class Derived : public Base<T> {...}; and shared_ptr< Base<T> > BasePtr; shared_ptr< Derived<T> > DerivedPtr; How can assign BasePtr to DerivedPtr? Thanks Daniele.

2 2

using pairs with boost.foreach
by Sean Farrow 22 Oct '09

22 Oct '09

Hi: Is it possible to use an std::pair with boost.foreach? I'm getting all sorts of errors when trying to do this. Any help appreciated.

4 4

need help using boost bzip2 filter on Windows (or zlib filter)
by ChristinaDRS 22 Oct '09

22 Oct '09

Hello all, I have the following code simple code to compress/uncompress a string: #include <iostream> #include <boost/iostreams/copy.hpp> #include <boost/iostreams/device/back_inserter.hpp> #include <boost/iostreams/filter/bzip2.hpp> #include <boost/iostreams/filtering_stream.hpp> using namespace std; int main() { string message = "this is a test message!"; cout << "message: " << message << endl; string compressed; boost::iostreams::filtering_streambuf<boost::iostreams::output> out; out.push(boost::iostreams::zlib_compressor()); out.push(boost::iostreams::back_inserter(compressed)); boost::iostreams::copy(boost::make_iterator_range(message), out); cout << "compressed message: " << compressed << endl; boost::iostreams::filtering_streambuf<boost::iostreams::input> in; in.push(boost::iostreams::zlib_decompressor()); in.push(boost::make_iterator_range(compressed)); string decompressed; boost::iostreams::copy(in, boost::iostreams::back_inserter(decompressed)); cout << "decompressed message: " << decompressed << endl; } but I get the following linking error: 1>------ Build started: Project: bzip2_compression_test, Configuration: Debug Win32 ------ 1>Compiling... 1>bzip2_test.cpp 1>Linking... 1>LINK : fatal error LNK1104: cannot open file 'libboost_bzip2-vc90-mt-gd-1_39.lib' 1>Build log was saved at "file://d:\compression\BoostCompression2\Debug\BuildLog.htm" 1>bzip2_compression_test - 1 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== I tried following the instructions on this page: http://www.boost.org/doc/libs/1_40_0/libs/iostreams/doc/installation.html so I defined these environment variables: BZIP2_BINARY = libbz2.lib BZIP2_INCLUDE = D:\bzip2-1.0.5 BZIP2_LIBPATH = D:\bzip2-1.0.5\Debug BZIP2_SOURCE = D:\bzip2-1.0.5 I also tried a similair example with zlib and I get the same error: 1>------ Build started: Project: libz_compression_test, Configuration: Debug Win32 ------ 1>Compiling... 1>zlib_test.cpp 1>Linking... 1>LINK : D:\Debug\libz_compression_test.exe not found or not built by the last incremental link; performing full link 1>LINK : fatal error LNK1104: cannot open file 'libboost_zlib-vc90-mt-gd-1_39.lib' 1>Build log was saved at "file://d:\\compression\libz_compression_test\Debug\BuildLog.htm" 1>libz_compression_test - 1 error(s), 0 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== Any ideas how I can fix this? Thanks! Christina -- View this message in context: http://www.nabble.com/need-help-using-boost-bzip2-filter-on-Windows-%28or-z… Sent from the Boost - Users mailing list archive at Nabble.com.

4 6

[Boost::Interprocess] access violation when function returns a pointer to shared memory object
by BaDBuTz 22 Oct '09

22 Oct '09

hi, I want to synchronize multiple Processes with boost::Interprocess. For the start I implemented a simple Synchronisation Class (with some mutexes) in my test program that will be stored in the Shared Memory. The first call of print() (in function getSyncObject) returns the correct output. But why do I get an access violation, when I call the function again (the pointer is the same!) in main()? I am using WINXP, msvc 7-1 and mingw44 (with both compilers I get the same error) Thanks in advance Martin (compilable) Code: #include <iostream> #include <boost/interprocess/managed_shared_memory.hpp> #include <boost/interprocess/allocators/allocator.hpp> #include <boost/interprocess/containers/string.hpp> typedef unsigned long U32; class SyncObject { public: SyncObject(std::string aId) : id(aId), locAddrSp0Range(0), locAddrSp0Remap(0), locAddrSp1Range(0), locAddrSp1Remap(0), usbInterfaceOwner(0), useCounter(0) {}; ~SyncObject() {} ; void print() { std::cout << id << " locAddrSp0Range = " << locAddrSp0Range << " locAddrSp0Remap = " << locAddrSp0Remap << " locAddrSp1Range = " << locAddrSp1Range << " locAddrSp1Remap = " << locAddrSp1Remap << " usbInterfaceOwner = " << usbInterfaceOwner << " useCounter = " << useCounter << "\n"; }; std::string id; boost::interprocess::interprocess_mutex mtxReadWrite; boost::interprocess::interprocess_mutex mtxFunction; U32 locAddrSp0Range; U32 locAddrSp0Remap; U32 locAddrSp1Range; U32 locAddrSp1Remap; U32 usbInterfaceOwner; U32 useCounter; }; class SharedMemory { public: SharedMemory(); ~SharedMemory(); SyncObject* getSyncObject(std::string id); }; using namespace boost::interprocess; const char* MANAGED_SHARED_MEMORY_NAME = "sharedMemoryMapTest17"; SharedMemory::SharedMemory() {} SharedMemory::~SharedMemory() {} SyncObject* SharedMemory::getSyncObject(std::string id) { managed_shared_memory segment(open_or_create, MANAGED_SHARED_MEMORY_NAME, 65536); SyncObject* ptr = segment.construct<SyncObject>(anonymous_instance)(id); ptr->print(); //works! return ptr; } int main() { SharedMemory shm; SyncObject* ptr = shm.getSyncObject("idName"); ptr->print(); //Application crashes here with an access violation return 0; }

2 1

multiple or single joins on asio socket
by Lee MacDonald 22 Oct '09

22 Oct '09

Guys, I have a application running on Linux using boost 1.35, that receives packets to several different multicast addresses, but on the same port and interface. For each different multicast address I perform the following: // create a new socket socket_(ioService) // set the listen end point to that of the multicast address and port boost::asio::ip::udp::endpoint listenEndPoint(multicastAddress.to_v4(), port); // we need to be able to reuse the underlyling socket created as more than one asio socket will share it. socket_.set_option(boost::asio::ip::udp::socket::reuse_address(true)); socket_.bind(listenEndPoint); // perform the actual join to the multicast group socket_.set_option(boost::asio::ip::multicast::join_group(destAddress.to _v4(), interfaceAddress.to_v4())); So I bind to a seperate asio socket instance for each multicast address and then perform a join to that address, hence each asio socket only has a single join associated with it. Is a better approach to have a single asio socket instance and perform a join for each multicast address that shares the port & interface? If so, how would I set listenEndPoint? Is there any performance differences between the two? Are there better approaches? Thanks. Lee MacDonald Schneider Trading 4th Floor, 25 Copthall Avenue London EC2R 7BP -------------------------------------------------------- Message from: lee.macdonald(a)schneidertrading.com Message to: boost-users(a)lists.boost.org Attached files: 0 This e-mail and any files transmitted with it are confidential, may be legally privileged, and are for the sole use of the intended recipient. Copyright in this e-mail and any accompanying document created by us is owned by us. If you are not the intended recipient of this e-mail or any part of it please telephone our IT Department at the number shown above or by e-mail at info(a)schneidertrading.com. You should not use or disclose to any other person the contents of this e-mail or its attachments (if any), nor take copies. This e-mail is not a representation or warranty and is not intended nor should it be taken to create any legal relations, contractual or otherwise. Schneider Trading Associates Ltd (Registration No. 3692131) is incorporated in England and Wales and the registered office is at 25 Copthall Avenue, London EC2R 7BP. The company is authorised and regulated by the Financial Services Authority

1 0

[Thread] join_all and interrupt_all playing together
by Ryan McConnehey 22 Oct '09

22 Oct '09

I'm trying to set several threads running and have the main thread signal an interrupt. I've included an example that shows what I'm trying to accomplish. The threads that are created are associated with thread_group and then a join_all is called. I would expect the main thread to be able to call interrupt_all on the thread_group. Since this wasn't working I looked at what the join_all and interrupt_all function were actually doing. It turns out that thread_group has a mutex that is being called for each function and since the mutex for join_all is in use, the lock in interrupt_all is blocking. I understand why the mutex is there but am unclear how interrupt_all is suppose to work with join_all. To accomplish the functionality I need I have to use create_thread and store the return pointer in a list of my own. Then call interrupt on each pointer I stored. Which is basically duplicating the storage of thread_group. This seem like a waste. I would appreciate any advice. Ryan class Converter { public: Converter(void) { m_Threads.reset(new boost::thread_group); } void run(void) { m_Threads->add_thread(new boost::thread(boost::bind(&Converter::processSureTrakMessage, this))); //m_Threads_v.push_back(m_Threads->create_thread(boost::bind(&Converter::processSureTrakMessage, this))); m_Threads->join_all(); m_Threads.reset(new boost::thread_group); } void stop(void) { //for (std::vector<boost::thread *>::iterator iter = m_Threads_v.begin(); iter != m_Threads_v.end(); ++iter) { // (*iter)->interrupt(); //} m_Threads->interrupt_all(); } void processMessage(void) { try { for (;;) { boost::this_thread::interruption_point(); } } catch (...) { int bob = 1; } int bobo = 2; } private: boost::scoped_ptr<boost::thread_group> m_Threads; boost::scoped_ptr<boost::thread> m_IO_Service_Thread; std::vector<boost::thread *> m_Threads_v; }; boost::function<void ()> console_ctrl_function; BOOL WINAPI console_ctrl_handler(DWORD ctrl_type) { switch (ctrl_type) { case CTRL_C_EVENT: case CTRL_BREAK_EVENT: case CTRL_CLOSE_EVENT: case CTRL_SHUTDOWN_EVENT: console_ctrl_function(); return TRUE; default: return FALSE; } } int main(int argc, char * argv[]) { Converter convert; console_ctrl_function = boost::bind(&Converter::stop, &convert); SetConsoleCtrlHandler(console_ctrl_handler, TRUE); convert.run(); return 0; }

2 1

Warnings in hash_table_impl.hpp with GCC 4.4.x
by Marco Alanen 22 Oct '09

22 Oct '09

Greetings I'm trying to compile our code in an environment where we treat warnings as errors. This worked fine when we used GCC 4.1.2 which is fairly forgiving when compared to newer versions. However, after upgrading to GCC 4.4.1 (and 4.4.2) we ran into a warning in hash_table_impl.hpp in Boost 1.40.0: .../include/boost/unordered/detail/hash_table_impl.hpp: In member function 'void boost::unordered_detail::hash_table_data_equivalent_keys<Alloc>:: node_constructor::construct_preamble() [with Alloc = std::allocator<std::pair <const unsigned int, GFL::refcounted_value<const std::basic_string<char, std:: char_traits<char>, std::allocator<char> > > > >]': .../include/boost/unordered/detail/hash_table_impl.hpp:101: error: '<anonymous>' may be used uninitialized in this function Is this problem patchable, or will it manifest itself throughout the code? One way would of course be to turn that particular warning off but I'd prefer to have all warnings enabled if possible. I also tried to compile with Boost 1.39.0 with the same results. Thank you /Marco

2 2

[function] generalization of std::plus and std::multiplies with more than one argument type
by alfC 22 Oct '09

22 Oct '09

Does Boost have a generalization of std::plus and std::multiplies (std_function.hpp)? The standard defines this with only one template parameter template <class _Tp> struct multiplies : public binary_function<_Tp, _Tp, _Tp> { _Tp operator()(const _Tp& __x, const _Tp& __y) const { return __x * __y; } }; but I need something more general, where the types are different multiplies<type1, type2, type2> (assuming that the result has the type of the rhs. of course I could just define template <class _Tp1, class _Tp2, class Tp3> struct multiplies : public binary_function<_Tp1, _Tp2, _Tp3> { _Tp3 operator()(const _Tp1& __x, const _Tp2& __y) const { return __x * __y; } }; but I don't want to clutter my code with these pieces of basic code, specially if something like this is already part of other facilities in Boost. (Or even better, it would be nice if multiples<type3(type1, type2)> were defined, maybe I am asking to much sugar). I need this specific kind of multiply<3 args> in order to provide a default multiplication in the template parameters of vector space class, i.e. unless something is explicitly defined it tries to use * to implement scalar (pre)multiplication. (multiply<3 args> is the only reasonable default I can think of). Thanks, Alfredo

5 9

building boost with python script
by Michał Nowotka 22 Oct '09

22 Oct '09

Hello, last time I didn't placed in my message an appropriate heading so I repeat it: I want to build boost library with python scrpt(s) (maybe SCons shuld be used). Or maybe someone has already done so - I don't want to reinvent the wheel. -- Regards Michał Nowotka

3 4

asio stability and scalability
by Eric Twietmeyer 21 Oct '09

21 Oct '09

Hello, The project I am involved with required porting a Windows only networking application that was using the WSAAsynSelect mechanism to GNU/Linux, while remaining Windows compatible. We chose Boost asio as the framework to use. After spending time with asio and understanding it, the port was relatively straight forward. It basically works, both on Windows and on GNU/Linux. However, on both systems we are now running into stack corruptions. We have spent quite a few weeks now trying to track this down, mostly on Windows, as we have access to very many tools on that platform. We have verified that all underlying Win32 (and Winsock) function calls are valid (all parameters check), that our heap is not corrupt (all memory allocations and deallocations are clean), and we have eliminated all threading issues by restructuring the code to be runnable on a single io_service::run() thread (and Intel's Thread Checker found no issues either). We have done many other verifications as well, everything comes out clean. At this point we have to strongly consider the possibility that it is asio itself that is causing this error, though we are quite at a loss to explain how asio could result in this behavior. So we are wondering, are there known large production systems out there that use asio? Are there high volume web servers for instance written with asio? I came across this comment: http://dobbscodetalk.com/index.php?option=com_content&task=view&id=1700&Ite… which, if true, would also imply that asio is perhaps not appropriate for high throughput applications, at least on GNU/Linux systems. My basic question is: Do people have success stories using asio in production applications? Have people used other frameworks, for instance ACE, and can comment on how they compare? Have others ran into random crashes and given up on using asio? Thanks for any feedback, -Eric

7 10

Question about Kolmogorov Max Flow function.
by Dev Ganesh 21 Oct '09

21 Oct '09

Hello, I am using the Kolmogorov Max Flow function from the BOOST Graph library to develop some software. I compared it with the Edmond Karps Max Flow function using some test cases. Each function gives the correct flow value, but the Kolomogorov function does not seem to give the correct set of vertices corresponding to the minimum cut. I would like to know if my input to the function is wrong or if I'm interpreting the vertex coloring wrongly. The Edmond Karps function seems to work fine, but the Kolomogorov function is faster and if possible, I would like to use it instead of the Edmond Karps function. Could someone please help me with this? Thanks, Dev Ganesh.

1 0

[date_time] binary serialization / integer representation
by Rutger ter Borg 21 Oct '09

21 Oct '09

Hello, I would like to serialize date_time types to a binary archive, and/or convert them to, say, a integer types. I see the counted time system does use a 64 bit integer for ptime, but doesn't provide access to it. Is there something available for this use, or should I create a conversion function? Thanks in advance, Cheers, Rutger

2 4

ASIO: sending QString (UTF-16)
by Rangel [LISTAS] 21 Oct '09

21 Oct '09

Hello, I am learning ASIO, and I need to send a QString (from QT) thru async_write. The "buffer" function does not supports QString, so I wrote my own, is it correct? "utf16()" returns a pointer to a ushort (16 bit values). namespace boost { namespace asio { inline const_buffers_1 buffer(const QString &data) { return const_buffers_1(const_buffer(data.utf16(), data.size()*sizeof(ushort))); } } }; As an example, I am trying to send HTTP header and data, using a simple HTTP server sample. As the header needs to be ASCII, I am sending a vector, with a std::string and a QString, is the way it is done right? (The "message_" had a Japanese string for effective test that was removed to put on this email) ba::ip::tcp::socket socket_; std::vector<ba::const_buffer> lbuf; static std::string header_; static QString message_; std::string connection::header_="HTTP/1.0 200 OK\r\nContent-Type: text/html; charset=utf-16\r\n\r\n"; QString connection::message_=QString::fromUtf16(L"<html><head><title>test</title>" L"</head><body><h1>Test</h1><p>This is a test!</p>" L"</body></html>"); void handle_read(const boost::system::error_code& error, size_t bytes_transferred) { lbuf.clear(); lbuf.push_back(ba::buffer(header_)); lbuf.push_back(ba::buffer(message_)); ba::async_write(socket_, lbuf, boost::bind(&connection::handle_write, shared_from_this(), ba::placeholders::error, ba::placeholders::bytes_transferred)); }

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NumPy integration with Boost.Python
by Tanja Zaric 21 Oct '09

21 Oct '09

Hello, I am new to Boost. Python. I am trying to find out how and maybe to integrate C++/Boost Python with Numpy? I have tried to find any documentation and tutorials about it on boost.org and elsewhere, but it is scarse. Can someone give any answer? Thanks __________ Information from ESET NOD32 Antivirus, version of virus signature database 4528 (20091021) __________ The message was checked by ESET NOD32 Antivirus. http://www.eset.com

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issues appending strings
by Sean Farrow 21 Oct '09

21 Oct '09

Hi: I have a std::wstring defined like so: std::wstring OutputString; I then use the following code to try to append to it: OutputString.append(boost::gregorian::to_iso_extended_string(d)); I receive the following errors: d:\work\access for everyone\ghg\tpproductszw\tpproductszw.cpp(63) : error C2664: 'std::basic_string<_Elem,_Traits,_Ax> &std::basic_string<_Elem,_Traits,_Ax>::append(const std::basic_string<_Elem,_Traits,_Ax> &)' : cannot convert parameter 1 from 'std::string' to 'const std::basic_string<_Elem,_Traits,_Ax> &' with [ _Elem=wchar_t, _Traits=std::char_traits, _Ax=std::allocator ] Reason: cannot convert from 'std::string' to 'const std::basic_string<_Elem,_Traits,_Ax>' with [ _Elem=wchar_t, _Traits=std::char_traits, _Ax=std::allocator ] No user-defined-conversion operator available that can perform this conversion, or the operator cannot be called Using visual c++ 2008 on a windows xp sp3 box. What's happening here, and more importantly what am I doing wrong/or not doing as the case may be? Cheers Sean.

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[Boost.Asio] Is there a way to find out first address of first NIC in the local host using Asio?
by Javier Estrada 21 Oct '09

21 Oct '09

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[boost.datetime] outputting to a widestring
by Sean Farrow 21 Oct '09

21 Oct '09

Hi: Is thee a version of the toiso_extended_string for wide character output? I have the following line: std::wstring test =boost::to_iso_extended_wstring(d); wich I assumed would work and fails. Any ideas? Cheers Sean.

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date time format
by Sean Farrow 21 Oct '09

21 Oct '09

Hi: Within a string I have a date in the format: 22 July 2009 How can I input this in to the boost::datetime library as I need to transform it in to another format. As far as I can tell, the constructor of boost::gregorian::date doesn't takethis format as one of it's string parameters. Cheers Sean.

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Re: [Boost-users] [pool] Singleton implementation
by Paul Byrne 21 Oct '09

21 Oct '09

> > Message: 8 > Date: Tue, 20 Oct 2009 06:43:40 -0800 > From: "Robert Ramey" <ramey(a)rrsd.com> > To: boost-users(a)lists.boost.org > Subject: Re: [Boost-users] [pool] Singleton implementation > Message-ID: <hbkeik$jah$1(a)ger.gmane.org> > > You might want to look at the singleton which is part of the serialization > library. > > Robert Ramey > Thanks Robert, Ray et al for the useful pointers.

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Boost.Python: wrapping OpenSceneGraph smart pointers, again
by Randolph Fritz 20 Oct '09

20 Oct '09

What is wrong with the following code? I suspect I'm doing something silly, and I suspect the answer is obvious. #include <osg/Node> #include <osg/ref_ptr> #include <boost/python.hpp> #include <boost/python/pointee.hpp> using namespace osg; typedef ref_ptr<Node> NodePtr; using namespace boost::python; BOOST_PYTHON_MODULE(NodePtr) { class_<NodePtr, pointee<NodePtr> >("NodePtr") ; } -- Randolph Fritz design machine group, architecture department, university of washington rfritz(a)u.washington.edu -or- rfritz333(a)gmail.com

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