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Re: Re: boost regex support for 64-bit
by Yaron Hirsch 07 Jun '04

07 Jun '04

> The errors that we got: > > 1. The Workshop 6 errors (SunOS): > > CC -c -O2 -I../../../ -o sunpro/libboost_regex/c_regex_traits.o > ../src/c_regex_traits.cpp > "../../..//boost/regex/v4/match_flags.hpp", line 91: Error: Cannot > assign int to boost::regex_constants::_match_flags. > "../../..//boost/regex/v4/match_flags.hpp", line 93: Error: Cannot > assign int to boost::regex_constants::_match_flags. > "../../..//boost/regex/v4/match_flags.hpp", line 95: Error: Cannot > assign int to boost::regex_constants::_match_flags. > 3 Error(s) detected. > > These are just a few. The rest of the errors occured for the same > reasons in various files. (If you want those too - > let me know). > > 2. The aCC errors are (HP-IX): > aCC -o generic/boost_regex/cpp_regex_traits.o -c -Aa -AA +O2 > -I../../../ -O ../src/cpp_regex_traits.cpp > Error 742: "../src/cpp_regex_traits.cpp", line 382 # Source type > const char *& and target type char * in a const_cast can only differ in > their qualifiers > pmd->sbuf.pubsetbuf(const_cast<char*>(first), > static_cast<std::streamsize>(last-first)); > > I mistakingly wrote dynamic_cast in the original post, but I meant > const_cast. Sorry for the confusion. > > Please notice that we had to add manually some flags to generic.mak > (which is the makefile we used to build it > on HP-IX). I'm aware of some example you gave in the html > documentation about compiling with aCC - but we still > had to change some flags. (I know these weren't formal settings and > just an example). > > Is there any chance that there will be a HP-IX-special makefile? It > will make life much easier. :-) > 3. I forgot to mension, that we managed to compile RegEX with SunOS C++ 5.5 both in 32 & 64 bits. There were no errors, BUT in 64 bits when we tried to run the rs/regress test - it failed (something which didn't happen in the 32-bits version). There was also a memory access violation, so even thought the compilation went just fine - apparently the library is not fully 64-bit compatible. What can we do to overcome this problem? Thanks alot, Yaron

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boost::function and managed code
by Russell Hind 07 Jun '04

07 Jun '04

I'm looking for a way to get a boost::function to do a callback to a method of a managed C++ class in VS7.1. Has anyone managed to do this yet? Thanks Russell

2 2

VC60 Compilation error
by mhosni＠softhome.net 07 Jun '04

07 Jun '04

Hi all, while trying to compile the city_visitor.cpp example in the Graph lib with VC60 SP 3, I've got the following error -------------- --------------------Configuration: CityVisitor - Win32 Release-------------------- Compiling... CityVisitor.cpp C:\BOOST\INCLUDE\BOOST-1_31\boost/graph/depth_first_search.hpp(132) : error C2059: syntax error : 'static_cast' C:\BOOST\INCLUDE\BOOST-1_31\boost/graph/depth_first_search.hpp(228) : see reference to function template instantiation 'void __cdecl boost::detail::depth_first_visit_impl(const class boost::adjacency_list<struct boost::vecS,struct boost::vec S,struct boost::undirectedS,struct boost::no_property,struct boost::no_property,struct boost::no_property,struct boost::listS> &,unsigned int,class boost::dfs_visitor<struct std::pair<struct city_arrival,struct std::pair<struct neighbor_cities,struc t finish_city> > > &,class boost::iterator_property_map<enum boost::default_color_type *,struct boost::vec_adj_list_vertex_id_map<struct boost::no_property,unsigned int>,enum boost::default_color_type,enum boost::default_color_type &>,struct boost:: detail::nontruth2)' being compiled Error executing cl.exe. CityVisitor.exe - 1 error(s), 0 warning(s) --------------------------------------------- To be noted, the static_cast operator compiles normally in any other application. The archives of the mailing list contains a similar complain with iterator.hpp (dated Feb 2003 !!) but no solutions were posted in response. Anybody have any idea how to get through this problem Regards, M.Hosni

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boost::bind problem
by Agoston Bejo 05 Jun '04

05 Jun '04

Hi, Please take a look at the code below. The point is that for_each_treenode calls for_each_treenode_child. It seems to me that bind(Print, ref(cout), _1)(&t); is not the same as Print(cout, &t); But if this is the case, how come that for_each_treenode_child(&t, bind(Print, ref(cout), _1)); compiles and works without problem? The compiler I use is VC 7.1. Thx, Gus ---------------------------------------------------------------------- // xBindTemplFuncPtr.cpp : Defines the entry point for the console application. // #include "stdafx.h" #include <iostream> #include <vector> #include <string> #include <boost/bind.hpp> #include <boost/ref.hpp> using namespace std; using namespace boost; template<typename TTree, typename TFunc> void for_each_treenode_child(TTree* t, TFunc f) { for_each(t->children.begin(), t->children.end(), f ); } template<typename TTree, typename TFunc> void for_each_treenode(TTree *t, TFunc f) { void (*thisFunc)(TTree*, TFunc) = for_each_treenode; // COMPILER BUG WORKAROUND - NOT RELEVANT NOW for_each_treenode_child( t, boost::bind(thisFunc, _1, f) ); f(t); } struct Tree { typedef vector<Tree*> Container; typedef Container::const_iterator const_iterator; typedef Container::iterator iterator; const_iterator begin() const { return children.begin(); } const_iterator end() const { return children.end(); } iterator begin() { return children.begin(); } iterator end() { return children.end(); } Tree(const string& sData):data(sData) {} vector<Tree*> children; string data; }; void Print(ostream& out, const Tree* pTree) { out << pTree->data << " "; } void PrintStd(const Tree* pTree) { Print(cout, pTree); } int _tmain(int argc, _TCHAR* argv[]) { Tree t("t"), t1("t1"), t2("t2"), t11("t11"), t12("t12"), t21("t21"); t.children.push_back(&t1); t1.children.push_back(&t11); t1.children.push_back(&t12); t.children.push_back(&t2); t2.children.push_back(&t21); Print(cout, &t); // WORKS bind(Print, ref(cout), _)(&t); // GENERATES ERROR (1) for_each_treenode(&t, bind(Print, ref(cout), _1)); // GENERATES ERROR (2) cout << endl; for_each_treenode(&t, PrintStd); // WORKS cout << endl; for_each_treenode_child(&t, bind(Print, ref(cout), _1)); // WORKS cout << endl; return 0; } ------------------------------------------------------------------------ Error for (1): error C2664: 'boost::_bi::bind_t<R,F,L>::result_type boost::_bi::bind_t<R,F,L>::operator ()<Tree*__w64 >(A1 & ) const' : cannot convert parameter 1 from 'Tree *__w64 ' to 'Tree *__w64 & ' with [ R=void, F=void (__cdecl *)(std::ostream &,const Tree *), L=boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ostr eam>,boost::arg< 1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost:: arg<1>>::B2>, A1=Tree *__w64 ] A reference that is not to 'const' cannot be bound to a non-lvalue Error for (2): c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\include\boost\bind.hpp(246) : error C2664: 'void (TTree *,TFunc)' : cannot convert parameter 2 from 'boost::_bi::result_traits<R,F>::type' to 'boost::_bi::bind_t<R,F,L>' with [ TTree=Tree, TFunc=boost::_bi::bind_t<void,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost: :arg<1>>::B2>> ] and [ R=void, F=void (__cdecl *)(std::ostream &,const Tree *) ] and [ R=void, F=void (__cdecl *)(std::ostream &,const Tree *), L=boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ostr eam>,boost::arg< 1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost:: arg<1>>::B2> ] Expressions of type void cannot be converted to other types c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\include\boost\bind\bind_template.hpp(33) : see reference to function template instantiation 'R boost::_bi::list2<A1,A2>::operator ()<boost::_bi::bind_t<R,F,L>::result_type,void(__cdecl *)(TTree *,TFunc),boost::_bi::list1<Tree & >>(boost::_bi::type<T>,void,A &)' being compiled with [ R=boost::_bi::bind_t<void,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost: :arg<1>>::B2>>:: result_type, A1=boost::_bi::list_av_2<boost::arg<1>,boost::_bi::bind_t<void,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost: :arg<1>>::B2>>>: :B1, A2=boost::_bi::list_av_2<boost::arg<1>,boost::_bi::bind_t<void,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost: :arg<1>>::B2>>>: :B2, F=void (__cdecl *)(std::ostream &,const Tree *), L=boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ostr eam>,boost::arg< 1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost:: arg<1>>::B2>, TTree=Tree, TFunc=boost::_bi::bind_t<void,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost: :arg<1>>::B2>>, T=boost::_bi::bind_t<void,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,bo ost::arg<1>>::B2>>::result_type, A=boost::_bi::list1<Tree *& > ] c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\include\algorithm(21) : see reference to function template instantiation 'boost::_bi::bind_t<R,F,L>::result_type boost::_bi::bind_t<R,F,L>::operator ()<std::allocator<_Ty>::value_type>(A1 & )' being compiled with [ R=void, F=void (__cdecl *)(Tree *,boost::_bi::bind_t<void,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost: :arg<1>>::B2>>), L=boost::_bi::list2<boost::_bi::list_av_2<boost::arg<1>,boost::_bi::bind_t<v oid,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost: :arg<1>>::B2>>>: :B1,boost::_bi::list_av_2<boost::arg<1>,boost::_bi::bind_t<void,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost: :arg<1>>::B2>>>: :B2>, _Ty=Tree *, A1=std::allocator<Tree *>::value_type ] c:\PROG\VCPP\xBindTemplFuncPtr\xBindTemplFuncPtr.cpp(18) : see reference to function template instantiation '_Fn1 std::for_each<std::vector<_Ty>::iterator,TFunc>(_InIt,_InIt,_Fn1)' being compiled with [ _Fn1=boost::_bi::bind_t<void,void (__cdecl *)(Tree *,boost::_bi::bind_t<void,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost: :arg<1>>::B2>>), boost::_bi::list2<boost::_bi::list_av_2<boost::arg<1>,boost::_bi::bind_t<voi d,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost: :arg<1>>::B2>>>: :B1,boost::_bi::list_av_2<boost::arg<1>,boost::_bi::bind_t<void,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost: :arg<1>>::B2>>>: :B2>>, _Ty=Tree *, TFunc=boost::_bi::bind_t<void,void (__cdecl *)(Tree *,boost::_bi::bind_t<void,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost: :arg<1>>::B2>>), boost::_bi::list2<boost::_bi::list_av_2<boost::arg<1>,boost::_bi::bind_t<voi d,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost: :arg<1>>::B2>>>: :B1,boost::_bi::list_av_2<boost::arg<1>,boost::_bi::bind_t<void,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<s td::ostream>,boost::arg<1>>::B2>>>::B2>>, _InIt=std::vector<Tree *>::iterator ] c:\PROG\VCPP\xBindTemplFuncPtr\xBindTemplFuncPtr.cpp(29) : see reference to function template instantiation 'void for_each_treenode_child<TTree,boost::_bi::bind_t<R,F,L>>(TTree *,TFunc)' being compiled with [ TTree=Tree, R=void, F=void (__cdecl *)(Tree *,boost::_bi::bind_t<void,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost: :arg<1>>::B2>>), L=boost::_bi::list2<boost::_bi::list_av_2<boost::arg<1>,boost::_bi::bind_t<v oid,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost: :arg<1>>::B2>>>: :B1,boost::_bi::list_av_2<boost::arg<1>,boost::_bi::bind_t<void,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost: :arg<1>>::B2>>>: :B2>, TFunc=boost::_bi::bind_t<void,void (__cdecl *)(Tree *,boost::_bi::bind_t<void,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost: :arg<1>>::B2>>), boost::_bi::list2<boost::_bi::list_av_2<boost::arg<1>,boost::_bi::bind_t<voi d,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost: :arg<1>>::B2>>>: :B1,boost::_bi::list_av_2<boost::arg<1>,boost::_bi::bind_t<void,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::refere nce_wrapper<std::ostream>,boost::arg<1>>::B2>>>::B2>> ] c:\PROG\VCPP\xBindTemplFuncPtr\xBindTemplFuncPtr.cpp(68) : see reference to function template instantiation 'void for_each_treenode<Tree,boost::_bi::bind_t<R,F,L>>(TTree *,TFunc)' being compiled with [ R=void, F=void (__cdecl *)(std::ostream &,const Tree *), L=boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ostr eam>,boost::arg< 1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost:: arg<1>>::B2>, TTree=Tree, TFunc=boost::_bi::bind_t<void,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost: :arg<1>>::B2>> ] c:\Program Files\Microsoft Visual Studio .NET 2003\Vc7\include\boost\bind.hpp(246) : error C2664: 'void (TTree *,TFunc)' : cannot convert parameter 1 from 'boost::_bi::result_traits<R,F>::type' to 'Tree *' with [ TTree=Tree, TFunc=boost::_bi::bind_t<void,void (__cdecl *)(std::ostream &,const Tree *),boost::_bi::list2<boost::_bi::list_av_2<boost::reference_wrapper<std::ost ream>,boost::arg <1>>::B1,boost::_bi::list_av_2<boost::reference_wrapper<std::ostream>,boost: :arg<1>>::B2>> ] and [ R=void, F=void (__cdecl *)(std::ostream &,const Tree *) ] Expressions of type void cannot be converted to other types

5 6

Boost.Threads && MFC?
by Philip, Tim 04 Jun '04

04 Jun '04

Has anyone ever used Boost.Threads in combination with MFC? MFC requires that threads using MFC functionality be created with AfxCreateThread(). What I'm wondering is if it is safe to create threads using AfxCreateThread() (instead of the Boost.Thread functionality) but then use the Boost.Threads mutexs and locking mechanisms to manage the thread activity. >From my brief perusal of the source it looks like it might work. But I was hoping I could find someone who had actually tried it and might have some experiences to share. :) Any information greatly appreciated! Thanks! Tim.

2 1

BGL: Pajek utility?
by Rui Carvalho 04 Jun '04

04 Jun '04

I'm looking for an utility to import/export graphs between the BGL and Pajek: http://vlado.fmf.uni-lj.si/pub/networks/pajek/ Does anyone know of such utility? Thanks, Rui ___________________________________ Dr. Rui Carvalho Research Fellow The Bartlett School of Graduate Studies 1-19 Torrington Place University College London Gower Street London WC1E 6BT United Kingdom

1 0

Thread usage question.
by Paul Gregory 04 Jun '04

04 Jun '04

Hello all, I am currently using Boost threads in a project I'm working on that involves a server/client type communications system. The project is a 3D renderer, the particular component is the communications between the renderer core, and any number of interested display clients, which are responsible for either displaying or storing the resulting image. Within the main program I have a listener thread that waits for requests from the display clients, and when it recieves one, launches another thread to handle the response. The responder thread can often just construct and send the response immediately. But if the request is for data that hasn't yet been rendered, it needs to wait for the data to be available. The responder is implemented as a class which has an operator() overload for the thread function. I would like for the responder thread to first query the system to see if the data is ready, and if not, block waiting for a signal from the system to indicate it is ready. So I need a way for the thread to 'register' it's interest in a particular data item with the main system, then wait for the signal. I presume there is a neat way of doing this using boost::mutexes and boost::condition's but I can't quite work out how, I freely admint I'm not very experienced when it comes to threaded programming. I've looked at the Boost bounded_buffer.cpp tutorial and it does something similar, but I can't work out how to apply the principles to my situation. Any help is greatly appreciated. Cheers Paul Gregory +---------------------------+---------------------------+ | email: pgregory(a)aqsis.com | Web: http://www.aqsis.com | | ICQ: 156088409 | AIM: aqsis1 | +---------------------------+---------------------------+ | GnuPG: http://aqsis.sourceforge.net/0x9176E46C.asc | +-------------------------------------------------------+

1 0

Some bad links on the web site
by Ross Boylan 04 Jun '04

04 Jun '04

The web site contains a bad link: http://lists.boost.org/mailman/listinfo.cgi/boost-announce directs you to http://lists.boost.org/MailArchives/boost-announce for the archives. That gives a 404 Not Found error. I think there was another bad link related to mailing lists, but I can't find it again. By the way, it would be good if the web site had where to send web-site related queries and bugs on the bottom of every page. As far as I could tell, this list is the place to go.

2 1

Date time Library: ptime and special_values
by Matthew_Schuckmann＠amat.com 04 Jun '04

04 Jun '04

The documentation for the date_time library states that a ptime can be constructed from a special value e.g. ptime(special_values sv) ptime t1(neg_infin); ptime t2(pos_infin); ptime t3(not_a_date_time); However when I try this with the Cygwin GNU compiler I get a no matching function for call error (see errors below) Am I missing something here or is the documentation wrong? Thanks Matt ../../logview.cpp:1843: error: no matching function for call to ` boost::posix_time::ptime::ptime(boost::date_time::special_values)' c:/cygwin/usr/local/include/boost-1_31/boost/date_time/posix_time/ptime.hpp: 32: error: candidates are: boost::posix_time::ptime::ptime(const boost::posix_time::ptime&) c:/cygwin/usr/local/include/boost-1_31/boost/date_time/posix_time/ptime.hpp: 45: error: boost::posix_time::ptime::ptime(const boost::posix_time::int64_time_rep&) c:/cygwin/usr/local/include/boost-1_31/boost/date_time/posix_time/ptime.hpp: 42: error: boost::posix_time::ptime::ptime(boost::gregorian::date) c:/cygwin/usr/local/include/boost-1_31/boost/date_time/posix_time/ptime.hpp: 39: error: boost::posix_time::ptime::ptime(boost::gregorian::date, boost::posix_time::time_duration)

2 1

Compiling with "Visual C++ Toolkit"?
by Wolfgang Meyer 03 Jun '04

03 Jun '04

Has anyone already successfully built Boost with the "Visual C++ Toolkit 2003", aka the free command line version of VC 7.1? I adjusted VC71_ROOT and copied "vcvars32.bat" to "bin". But there are still a lot of errors, the first one being: greg_month.obj : error LNK2019: unresolved external symbol "__declspec(dllimport) public: __thiscall std ::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >::basic_string<char,struct std::char_traits<char>,class std::allocator<char> >(char const *)" (__imp_??0?$basic_string@DU?$char_tr aits@D@std@@V?$allocator@D@2@@std@@QAE@PBD@Z) referenced in function "public: static class boost::shared _ptr<class std::map<class std::basic_string<char,struct std::char_traits<char>,class std::allocator<char > >,unsigned short,struct std::less<class std::basic_string<char,struct std::char_traits<char>,class std ::allocator<char> > >,class std::allocator<struct std::pair<class std::basic_string<char,struct std::cha r_traits<char>,class std::allocator<char> > const ,unsigned short> > > > __cdecl boost::gregorian::greg_ month::get_month_map_ptr(void)" (?get_month_map_ptr@greg_month@gregorian@boost@@SA?AV?$shared_ptr@V?$map @V?$basic_string@DU?$char_traits@D@std@@V?$allocator@D@2@@std@@GU?$less@V?$basic_string@DU?$char_traits@ D@std@@V?$allocator@D@2@@std@@@2@V?$allocator@U?$pair@$$CBV?$basic_string@DU?$char_traits@D@std@@V?$allo cator@D@2@@std@@G@std@@@2@@std@@@3@XZ) Similar errors occur if I try to use the (successfully built) boost_thread-vc71-mt-1_31.lib with a sample project. Any ideas? Regards, Wolfgang Meyer

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