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Re: [Boost-users] Puzzled: compiler can't find a match for function call
by JOAQUIN M. LOPEZ MUÑOZ 11 Sep '08

11 Sep '08

________________________________________ De: boost-users-bounces(a)lists.boost.org [boost-users-bounces(a)lists.boost.org] En nombre de Zeljko Vrba [zvrba(a)ifi.uio.no] Enviado el: jueves, 11 de septiembre de 2008 17:05 Para: boost-users(a)lists.boost.org Asunto: Re: [Boost-users] Puzzled: compiler can't find a match for functioncall > Indeed it works. Could you please explain why the compiler can deduce > K in BF::map<BF::pair<K, int> > , but not in typename id_t<K>::type? Suppose that id_t<K1>::type == id_t<K2>::type == int (for instance). If we pass int, how can the compiler figure out whether it's K1 or K2 that has to be deduced? Joaquín M López Muñoz Telefónica, Investigación y Desarrollo

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boost::regex linking errors
by rsennat 11 Sep '08

11 Sep '08

hi all, im using boost::regex for the first time. #include <boost/regex.hpp> string aliasCmd = "xyz * abc"; boost::regex regExp("[*]", boost::regex::basic); aliasCmd = boost::regex_replace(aliasCmd, regExp, "INST"); There were no compiler errors. But during linking, I get the errors as below. Could anyone please get me on this. Thanks rsennat ../../../lib/FREEBSD_6_i686/libobj.a(IObject.o): In function `basic_regex': /sviews/ag_cli_tools//fw-boost/boost/regex/v4/basic_regex.hpp:340: undefined ref erence to `boost::reg_expression<char, boost::regex_traits<char>, std::allocator <char> >::reg_expression(char const*, unsigned int, std::allocator<char> const&) ' ../../../lib/FREEBSD_6_i686/libobj.a(IObject.o): In function `~basic_regex': /sviews/ag_cli_tools//fw-boost/boost/regex/v4/basic_regex.hpp:347: undefined ref erence to `boost::reg_expression<char, boost::regex_traits<char>, std::allocator <char> >::~reg_expression()' /sviews/ag_cli_tools//fw-boost/boost/regex/v4/basic_regex.hpp:347: undefined ref erence to `boost::reg_expression<char, boost::regex_traits<char>, std::allocator <char> >::~reg_expression()' ../../../lib/FREEBSD_6_i686/libobj.a(IObject.o): In function `boost::re_detail::perl_matcher<__gnu_cxx::__normal_iterator<char const*, std:: basic_string<char, std::char_traits<char>, std::allocator<char> > >, std::alloca tor<boost::sub_match<__gnu_cxx::__normal_iterator<char const*, std::basic_string <char, std::char_traits<char>, std::allocator<char> > > > >, boost::regex_traits <char>, std::allocator<char> >::unwind_extra_block(bool)': /sviews/ag_cli_tools//fw-boost/boost/regex/v4/perl_matcher_non_recursive.hpp:904 : undefined reference to `boost::re_detail::put_mem_block(void*)' -- View this message in context: http://www.nabble.com/boost%3A%3Aregex-linking-errors-tp19438899p19438899.h… Sent from the Boost - Users mailing list archive at Nabble.com.

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Re: [Boost-users] Borland c++ 5.8.2 and Boost 1.3.6 - Thread problem???
by Stephen Kierzewski 11 Sep '08

11 Sep '08

Hello, With some further troubleshooting, I can now see the issue seems to be an access violation in cc3270MT.dll. Below are the stack trace and the actual Windows error message. It looks like Boost is actually working fine, but when the thread is created, cc3270MT.dll raises an exception. :7c812aeb kernel32.RaiseException + 0x52 :32758966 CC3270MT.___raiseDebuggerException + 0x1a :32758a40 CC3270MT.___raiseDebuggerException + 0xf4 :7c9032a8 ntdll.RtlConvertUlongToLargeInteger + 0x6a :7c90327a ntdll.RtlConvertUlongToLargeInteger + 0x3c :7c90e46a ntdll.KiUserExceptionDispatcher + 0xe :32779df2 CC3270MT.__beginthreadex + 0x22 :00341a04 BOOST_THREAD-BCB-MT-1_36.@boost@thread@start_thread$qv + 0x30 :00401769 boost::thread::thread(this=:0013FF74, f=:004012E0) :004016BC main() :32778e3e ; C:\WINDOWS\system32\CC3270MT.DLL First chance exception at $7C812AEB. Exception class EAccessViolation with message 'Access Violation'. Process ThreadTest.exe (3544) Any thoughts? Thanks, Stephen ---------------------------------------------------------------- Original Post: Hello, Has anyone successfully compiled the Boost libraries with the Borland / Codegear Turbo C++ Pro, compiler version 5.8.2? I was able to build the libraries but I got a lot of errors and a simple Hello World program using boost::thread will not work. Any help on switches or tweaks I can do to get Boost to work would be appreciated. Here is the program I am compiling and the error I get when running it. I am linking to the debug version of the multi-threaded DLL (boost_thread-bcb-mt-d-1_36.dll) The sample program compiles fine but when I run it I get an assertion error and the program terminates. Any feedback is welcome. Thank you, Stephen ________________________________ Assertion failed: p_ != 0, file .\boost/intrusive_ptr.hpp, line 149 Abnormal program termination ________________________________ #include <boost/thread/thread.hpp> #include <iostream> using namespace std; void hello_world() { cout << "Hello world, I'm a thread!" << endl; } int main(int argc, char* argv[]) { // start a new thread that calls the "hello_world" function boost::thread my_thread(&hello_world); // wait for the thread to finish my_thread.join(); return 0; }

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accessing graph vertices by index
by Will Chen 11 Sep '08

11 Sep '08

Is this doable? Here's my graph: struct NodeProperties { map<string, string> Properties; }; struct EdgeProperties { map<string, string> Properties; }; typedef adjacency_list<vecS, vecS, directedS, NodeProperties, EdgeProperties> BipartiteGraph; So I'm using vecS for the vertexlist, so I should be able to access them by index right? -- William Yun Chen '09 Hinman Box 1826 Dartmouth College Hanover, NH, 03755

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scoped_ptr initialization
by UberMongoose 11 Sep '08

11 Sep '08

Hi All, I'm new to Boost, and I've been taking a look at scoped pointers. Here's the example from the boost documentation: ---------------------------------------------------------------------- #include <boost/scoped_ptr.hpp> #include <iostream> struct Shoe { ~Shoe() { std::cout << "Buckle my shoe\n"; } }; class MyClass { boost::scoped_ptr<int> ptr; public: MyClass() : ptr(new int) { *ptr = 0; } int add_one() { return ++*ptr; } }; int main() { boost::scoped_ptr<Shoe> x(new Shoe); MyClass my_instance; std::cout << my_instance.add_one() << '\n'; std::cout << my_instance.add_one() << '\n'; } ---------------------------------------------------------------------- I notice that the creation of a new object for the scoped pointer has been done before the MyClass constructor. However you can't declare the scoped pointer as a member variable and then do something like this in a method: protected: scoped_pointer<ArbitaryObject> mPointerToObject; .... // Later mPointerToObject ( new ArbitaryObject() ); Why is that? Thanks! -- View this message in context: http://www.nabble.com/scoped_ptr-initialization-tp19431388p19431388.html Sent from the Boost - Users mailing list archive at Nabble.com.

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[statechart] split different orthogonal regions over different translation units
by Manuel Jung 11 Sep '08

11 Sep '08

Hey, Im trying to split the orthogonal regions over differnent translation units, but it doesn't compile. The compiler complains that the type is incomplete, which i try to put on a different translation unit. What i do is: Forward declare the orthogonal region and define than the outermost state "Active" like this: struct StateInDifferentTransUnit; struct Active; struct Start : sc::asynchronous_state_machine< Start, Active >{ ... } struct Active : sc::state< Active, Start, mpl::list< State1, State2, StateInDifferentTransUnit > >{ ... } Is the split in different translationunits not possible with orthogonal regions or what could be my problem? Kind Regards Manuel

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[thread] working directory specific to each thread
by frederic.bron＠alcan.com 11 Sep '08

11 Sep '08

Is there a way to have the working directory specific to each thread? I have tried to change the working directory in each thread but the working directory seems to be the same in each thread, the last to be set. F. Bron Avis : Ce message et toute pièce jointe sont la propriété d'Alcan et sont destinés seulement aux personnes ou à l'entité à qui le message est adressé. Si vous avez reçu ce message par erreur, veuillez le détruire et en aviser l'expéditeur par courriel. Si vous n'êtes pas le destinataire du message, vous n'êtes pas autorisé à utiliser, à copier ou à divulguer le contenu du message ou ses pièces jointes en tout ou en partie. Notice: This message and any attachments are the property of Alcan and are intended solely for the named recipients or entity to whom this message is addressed. If you have received this message in error please inform the sender via e-mail and destroy the message. If you are not the intended recipient you are not allowed to use, copy or disclose the contents or attachments in whole or in part.

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Re: [Boost-users] [bind] [multi-index] Create type of pointer to overloaded erase method
by JOAQUIN M. LOPEZ MUÑOZ 11 Sep '08

11 Sep '08

________________________________________ De: boost-users-bounces(a)lists.boost.org [boost-users-bounces(a)lists.boost.org] En nombre de JOAQUIN M. LOPEZ MUÑOZ [joaquin(a)tid.es] Enviado el: miércoles, 10 de septiembre de 2008 20:34 Para: boost-users(a)lists.boost.org Asunto: Re: [Boost-users] [bind] [multi-index] Create type of pointer to overloaded erase method > > ________________________________________ > De: boost-users-bounces(a)lists.boost.org [boost-users-bounces(a)lists.boost.org] En nombre de Steven > Watanabe [watanabesj(a)gmail.com] > Enviado el: miércoles, 10 de septiembre de 2008 18:54 > Para: boost-users(a)lists.boost.org > Asunto: Re: [Boost-users] [bind] [multi-index] Create type of pointer to overloaded erase method > > > AMDG > > > > Peter Barker wrote: > > > RecordsContainer::size_type (RecordsContainer::*erase)(unsigned int) = > > > &RecordsContainer::erase; > > > > > > but it failed to compile. Visual Studio 2003 gives me the following > > > error on the above line: > > > <snip> > > > > > > > The following compiles for me with msvc 9.0 > > > > int main() { > > RecordsContainer::size_type (RecordsContainer::*erase)(unsigned int) = > > &RecordsContainer::erase; > > } > > Oddly enough, it fails with MSVC++ 8.0 (though it shouldn't since your > call_traits analysis is correct): > > error C2440: 'initializing' : cannot convert from 'overloaded-function' to > 'boost::multi_index::detail::ordered_index<KeyFromValue,Compare,SuperMeta, > TagList,Category>::size_type (__thiscall > boost::multi_index::multi_index_container<Value,IndexSpecifierList>::* )(unsigned int)' But the following works: int main() { typedef RecordsContainer::index<RecsByID>::type RecordsContainerByID; RecordsContainerByID::size_type (RecordsContainerByID::*erase)(unsigned int) = &RecordsContainerByID::erase; } even though my previous approach is IMHO still better. Joaquín M López Muñoz Telefónica, Investigación y Desarrollo

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[bind] [multi-index] Create type of pointer to overloaded erase method
by Peter Barker 11 Sep '08

11 Sep '08

Hello all, I have a container of the following type: struct RecsByID {}; struct RecsBySizeAndFit {}; typedef boost::multi_index_container< boost::shared_ptr<LastSizeFitRecord>, bmi::indexed_by< bmi::ordered_unique<bmi::tag<RecsByID>,bmi::const_mem_fun<RecordBase,unsigned int,&RecordBase::getRecID> >, bmi::ordered_unique<bmi::tag<RecsBySizeAndFit>,bmi::const_mem_fun<LastSizeFitRecord,const SizeAndFit&,&LastSizeFitRecord::getSizeAndFit> > > > RecordsContainer; The main thing to note above is that the first index is of type "unsigned int" - the record ID. I have a container of unsigned ints which represent the records to be deleted so naturally wanted to do a std::for_each() with a binder and passing in _1 to RecordsContainer::erase. Not that simple because Records::Container::erase has three overloads so I'm trying to come up with a type that will represent the overload I want. I've tried this: RecordsContainer::size_type (RecordsContainer::*erase)(unsigned int) = &RecordsContainer::erase; but it failed to compile. Visual Studio 2003 gives me the following error on the above line: error C2440: 'initializing' : cannot convert from 'overloaded-function' to '<Unknown>' I've decided this particular pointer to member would not be intuitive to use in production code, but I thought I'd try to get it working and failed and would like to know what I'm doing wrong! Regards, Pete

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boost parameter - overloading on keyword "signature"
by e r 11 Sep '08

11 Sep '08

hello, i have something like this: *hpp : namespace tag{ template<typename Id> struct sequence{ static ::boost::parameter::keyword< a_<Id> >& a; static ::boost::parameter::keyword< b_<Id> >& b; static ::boost::parameter::keyword< arg_method_<Id> >& arg_method; }; } namespace sequence_arg{ struct method{}; struct a:public method{}; struct b:public method{}; } class sequence{ public: template<typename Id,typename ArgPack> sequence(const Id& id,const ArgPack&args){ fill_elements(id,args,args[tag::sequence<Id>::arg_method]); } private: template<typename Id,typename ArgPack> void fill_elements( const Id& id, const ArgPack& args, sequence_arg::a method ); template<typename Id,typename ArgPack> void fill_elements( const Id& id, const ArgPack& args, sequence_arg::b method ); }; *.cpp : sequence seq( id(), ( tag::sequence::a = a_value, tag::sequence::arg_method = sequence_arg::a() ) ); So far so good except there is redundancy of information about which method to use, so I'm looking for a way to be able to call say sequence seq( id(), ( tag::sequence::a = a_value ) ) Any suggestion?

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