November 2006 - Boost-users - lists.preview.boost.org

Graph: bug with gcc 4.1.1 and headers
by Todd A. Gibson 28 Nov '06

28 Nov '06

Problem: transitive_closure.hpp won't compile if depth_first_search.hpp is included before including transitive_closure.hpp . This problem occurs when compiling with gcc 4.1.1. This problem does not occur with gcc 3.3.5 To reproduce: Edit example/transitive_closure.cpp and add: #include <boost/graph/depth_first_search.hpp> before #include <boost/graph/transitive_closure.hpp> Thanks, -TAG

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[Boost.Test] multithreading
by Andrea Murru 28 Nov '06

28 Nov '06

Hi! I have started some experiment with boost.test library, and I found it very flexible and quite simple to use. My question is very simple: what are guaranties about multithreading ? Can I call BOOST_CHECK from different threads ? Can I check predicates that internally call synchronization functions (i.e. waitformultipleobjects) ? Thank a lot for any suggestion. Andrea

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Re: [Boost-users] output to multiple streams
by Eric MALENFANT 27 Nov '06

27 Nov '06

Andrew Schweitzer a écrit: > Is there a standard way to output to multiple streams at the same > time? > > I would like to pass an ostream to a function, write output > strings into that stream, and have them go to both cout and a > file. I'd like something like this: > > void DoSomething(ostream& ros) > { > ros << "This goes should go to cout and to a file" << > endl; } multi_stream ms; fstream f("out.txt"); ms.add(cout); > ms.add(f); DoSomething(ms); > > Any suggestions? > > Is this supported by the iostream library? > tee_device is probably what you're looking for.

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output to multiple streams
by Andrew Schweitzer 27 Nov '06

27 Nov '06

Is there a standard way to output to multiple streams at the same time? I would like to pass an ostream to a function, write output strings into that stream, and have them go to both cout and a file. I'd like something like this: void DoSomething(ostream& ros) { ros << "This goes should go to cout and to a file" << endl; } multi_stream ms; fstream f("out.txt"); ms.add(cout); ms.add(f); DoSomething(ms); Any suggestions? Is this supported by the iostream library? I took a brief look at iostream doc and without really absorbing it, it doesn't seem to directly support this functionality. Maybe I need to read more carefully. Thanks, Andy

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[serialization] - creating own archive?
by Oliver.Kowalke＠qimonda.com 27 Nov '06

27 Nov '06

Hi, Can I get an example (HOWTO, pseudo code etc.) which creates ist own archive which does not require streams (using another basis)? Regards, Oliver

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Boost-Jam - Building Boost.Python extensions
by Lawrence Spector 27 Nov '06

27 Nov '06

Hello all. Quick question on boost-jam, because I couldn't get it work right on my system. When I went into the $BOOST_ROOT_DIR\libs\python\example\tutorial directory and build as follows: bjam -sTOOLS=vc-7_1 It built with no problems. I then took the tutorial example and moved it outside the boost tree. I edited the Jamrules so that: path-global BOOST_ROOT : ../../../.. ; became: path-global BOOST_ROOT : $(BOOST_ROOT_DIR) ; and left all else the same. However when I built, it complained that it couldn't find boost-build.jam. Any ideas what might be missing/not set up right, or if I missed a step? Thanks so much, Lawrence

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Signals
by Sam Duvall 27 Nov '06

27 Nov '06

Hi, I am trying to use boost signals. I am using Visual Studio 2005 with boost and qt. I had to do this workaround to avoid the signals conflict: #ifdef signals #error "signalslib.hpp must be included before any qt header" #endif #include <boost/signal.hpp> namespace boost { namespace signalslib = signals; } I am getting this error INK : fatal error LNK1104: cannot open file 'libboost_signals-vc80-mt-1_33_1.lib' Thanks, Sam

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[multiindex] - lower_bound/upper_bound return wrong results
by Oliver.Kowalke＠qimonda.com 27 Nov '06

27 Nov '06

Hello, The example below should print out only the items {1.0, true} and {2.0, true} but not {1.5, false}. What is going wrong? Regards, Oliver #include <algorithm> #include <iostream> #include <iterator> #include <cstdlib> #include <stdexcept> #include <utility> #include <boost/lambda/lambda.hpp> #include <boost/multi_index_container.hpp> #include <boost/multi_index/key_extractors.hpp> #include <boost/multi_index/ordered_index.hpp> namespace mi = boost::multi_index; namespace ld = boost::lambda; class item { private: double weight_; bool asignable_; public: item( double weight, bool asignable) : weight_( weight), asignable_( asignable) {} double weight() const { return weight_; } bool asignable() const { return asignable_; } }; std::ostream & operator<<( std::ostream & os, item const& i) { os << i.weight() << " " << std::boolalpha << i.asignable(); return os; } int main( int argc, char *argv[]) { try { typedef mi::multi_index_container< item, mi::indexed_by< mi::ordered_unique< mi::composite_key< item, mi::const_mem_fun< item, double, & item::weight >, mi::const_mem_fun< item, bool, & item::asignable > > > > > item_table; item_table s; s.insert( item( 0.1, true) ); s.insert( item( 0.5, true) ); s.insert( item( 1.0, true) ); s.insert( item( 1.5, false) ); s.insert( item( 2.0, true) ); typedef item_table::nth_index< 0 >::type idx_type; idx_type::iterator it0 = s.lower_bound( boost::make_tuple( 0.8, true) ); idx_type::iterator it1 = s.upper_bound( boost::make_tuple( 2.5, true) ); std::copy( it0, it1, std::ostream_iterator< item >( std::cout, "\n") ); /* output: 1 true 1.5 false // wrong! 2 true */ return EXIT_SUCCESS; } catch ( std::exception const& e) { std::cerr << e.what() << std::endl; } catch ( ... ) { std::cerr << "unhandled exception" << std::endl; } return EXIT_FAILURE; }

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Re: [Boost-users] [multiindex] - lower_bound/upper_bound return wrongresults
by Mihalicza, Jozsef 27 Nov '06

27 Nov '06

Hello, Compose_key implements lexicographical comparison where (1, true) < (1.5, false) < (2, true). What you need is a composition of two indices rather than of keys I think, the first filters out elements having proper first keys and the second narrows that by the second key. HTH József Mihalicza -----Original Message----- From: boost-users-bounces(a)lists.boost.org [mailto:boost-users-bounces@lists.boost.org] On Behalf Of Oliver.Kowalke(a)qimonda.com Sent: Monday, November 27, 2006 2:41 PM To: boost-users(a)lists.boost.org Subject: [Boost-users] [multiindex] - lower_bound/upper_bound return wrongresults Hello, The example below should print out only the items {1.0, true} and {2.0, true} but not {1.5, false}. What is going wrong? Regards, Oliver #include <algorithm> #include <iostream> #include <iterator> #include <cstdlib> #include <stdexcept> #include <utility> #include <boost/lambda/lambda.hpp> #include <boost/multi_index_container.hpp> #include <boost/multi_index/key_extractors.hpp> #include <boost/multi_index/ordered_index.hpp> namespace mi = boost::multi_index; namespace ld = boost::lambda; class item { private: double weight_; bool asignable_; public: item( double weight, bool asignable) : weight_( weight), asignable_( asignable) {} double weight() const { return weight_; } bool asignable() const { return asignable_; } }; std::ostream & operator<<( std::ostream & os, item const& i) { os << i.weight() << " " << std::boolalpha << i.asignable(); return os; } int main( int argc, char *argv[]) { try { typedef mi::multi_index_container< item, mi::indexed_by< mi::ordered_unique< mi::composite_key< item, mi::const_mem_fun< item, double, & item::weight >, mi::const_mem_fun< item, bool, & item::asignable > > > > > item_table; item_table s; s.insert( item( 0.1, true) ); s.insert( item( 0.5, true) ); s.insert( item( 1.0, true) ); s.insert( item( 1.5, false) ); s.insert( item( 2.0, true) ); typedef item_table::nth_index< 0 >::type idx_type; idx_type::iterator it0 = s.lower_bound( boost::make_tuple( 0.8, true) ); idx_type::iterator it1 = s.upper_bound( boost::make_tuple( 2.5, true) ); std::copy( it0, it1, std::ostream_iterator< item >( std::cout, "\n") ); /* output: 1 true 1.5 false // wrong! 2 true */ return EXIT_SUCCESS; } catch ( std::exception const& e) { std::cerr << e.what() << std::endl; } catch ( ... ) { std::cerr << "unhandled exception" << std::endl; } return EXIT_FAILURE; } _______________________________________________ Boost-users mailing list Boost-users(a)lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

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Carrying Boost source code with mine
by Paulo J. Matos 25 Nov '06

25 Nov '06

Hello, I need to use Boost (it would be great and save me a lot of work) in my software. However, I don't want to say to my users that they need to have boost installed. So, what's the best way to distribute boost around with my code? Right now, I only need variant. Should I just copy the include/variant to my include/boost? How do I know why files are needed if these are not just the only ones? Regards, -- Paulo Jorge Matos - pocm at soton.ac.uk http://www.personal.soton.ac.uk/pocm PhD Student @ ECS University of Southampton, UK

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[serialization] char[] and double
by Larry Smith 25 Nov '06

25 Nov '06

We have thousands of 'packed' 'C' structs (2100+) shared between C and C++ modules & apps. These structures do NOT contain any pointers, all data is contiguous so that it may be transferred directly from one machine's memory to another machine's memory without translation (32 bit Windows on Intel), e.g. #ifdef __cplusplus extern "C" { #endif typedef struct NODE_MGR { char ApplName[8]; char CompName[8]; } NODE_MGR; typedef struct ROUTE_CONTROL { UCHAR msg_type; ULONG req_num; char src_domain_id[ 15 ]; char src_machine_id[ 8 ]; char src_proc_id[ 32 ]; char dest_domain_id[ 15 ]; char dest_machine_id[ 8 ]; char dest_proc_id[ 32 ]; NODE_MGR PrimeNodeMgr; NODE_MGR BkupNodeMgr; UINT parmlen; UINT datalen; /* data[] is actually 'parmlen + datalen' bytes * in length (64K max) and contains arrays of * other struct's who's types vary based on the values * of 'msg_type' and 'req_num'. */ char data[ 1 ]; } ROUTE_CONTROL; /* hundreds of other struct defs here... */ #ifdef __cplusplus } #endif Currently, these structs are written directly from the workstation's memory to a TCP/IP socket connected to a remote server process which reads them from the socket directly into memory for immediate use by the server program (i.e. 'packed' binary structs are transfered over the net from one 32 bit Windows machine to another 32 bit Windows machine). In the near future the workstations will continue to be 32 bit Windows, but the servers may be 32 bit Linux on Intel, or 64 bit Linux on AMD, or 64 bit Linux on PowerPC, or 64 bit Solaris on Sparc. This means that we can no longer send/receive 32 bit Intel 'packed' binary structs directly from the workstation to the server. I had hoped to use Boost Archives to serialize the structs to a std::string (via std::strstream), send it across the net, then deserialize the structs at the server. However, the structs have thousands of members of the form 'char[N]' representing char arrays which are NOT nul-terminated. I can not get these struct members to serialize; I get compile errors, e.g. this fails to compile: ar & fld; // where fld is: char[200] What's the secret trick? The structs also contain many 'double' fields. If the precision is the (default?) 6 when serialized, that won't be enough. Is there a way to control the precision of doubles when they are written to a text archive? Thanks, Larry

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Re: [Boost-users] debugging templates
by Sohail Somani 25 Nov '06

25 Nov '06

> -----Original Message----- > From: boost-users-bounces(a)lists.boost.org > [mailto:boost-users-bounces@lists.boost.org] On Behalf Of > Maik Beckmann > Sent: Friday, November 24, 2006 10:27 AM > To: boost-users(a)lists.boost.org > Subject: Re: [Boost-users] debugging templates > > Am Freitag, den 24.11.2006, 10:32 +0100 schrieb Berenguer Blasi: > > Thank you David, > > > > I think it?s a Kdbg issue (though I thought I would use gdb > behind the > > scenes)... > > > > Anybody knows something like Kgdb WITH templates? > > > > Thanks > > > > What about DDD ? > http://www.gnu.org/software/ddd/ > > I'm not an expert, but its the best(most bug free) GDB > front-end I know. cgdb is also a good one http://cgdb.sf.net

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[install] need to install 32 bit boost libraries on amd64 system
by Brian Budge 24 Nov '06

24 Nov '06

Hi all - Is it possible to build 32 bit boost libraries on amd64? When I try, I get complaints (errors) saying that pointers aren't the right size. I already have boost installed in /usr/lib64, but I need the 32 bit libs in /usr/lib32. I'm running the gentoo distribution, so a trick to build via emerge or a trick to build via tarball/configure would be great. Thanks for any help, Brian

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Wrapping variant into a smart reference
by Mathias Gaunard 24 Nov '06

24 Nov '06

I would have liked to wrap boost.variant<Base, Derived1, Derived2 .. DerivedN> into a smart reference that would act like a reference to Base. Unfortunetely, the variadic template nature makes this extremely complicated, especially since there are a lot of conversions cases to handle too (<Base, Derived1..DerivedN> should be convertible to <BaseOfBase, Base, Derived1..DerivedN>). Is there any way to code that kind of thing easily?

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Re: [Boost-users] debugging templates
by Hughes, James 24 Nov '06

24 Nov '06

> -----Original Message----- > From: boost-users-bounces(a)lists.boost.org > [mailto:boost-users-bounces@lists.boost.org] On Behalf Of > Berenguer Blasi > Sent: 23 November 2006 09:44 > To: boost-users(a)lists.boost.org > Subject: Re: [Boost-users] debugging templates > > Hi, > > I guess the subject says it all. > > Is there a way to debug templates? with kdbg preferrably? Kgdb??? The Linux kernel debugger?? Since the kernel is all C, how can you use templates in it? Forgive me if I am missing something!! I have certainly done some debugging using _gdb_ on templated code, but it can be somewhat confusing (rather like template compile errors!), but certainly possible. James > > I've read you can with dbx but don?t know if you can with others. > > How do you do it? > > Thanks. > _______________________________________________ > Boost-users mailing list > Boost-users(a)lists.boost.org > http://lists.boost.org/mailman/listinfo.cgi/boost-users > This message (including any attachments) contains confidential and/or proprietary information intended only for the addressee. Any unauthorized disclosure, copying, distribution or reliance on the contents of this information is strictly prohibited and may constitute a violation of law. If you are not the intended recipient, please notify the sender immediately by responding to this e-mail, and delete the message from your system. If you have any questions about this e-mail please notify the sender immediately.

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boost thread exmple
by Fred J. 24 Nov '06

24 Nov '06

Hi the code below compiles and runs, but does not do what I want. how can I get the code below to print out: "I am child 1sub thread called." thanks ****************************************************************** #include <boost/thread/thread.hpp> #include <string> #include <iostream> using namespace std; class Child { string c; public: Child(string x):c(x){ } void operator()(){ cout << c << " sub thread called." << endl; } }; class Parent { string p; public: Parent(string x):p(x){} void operator()(){ cout << p << "thread called." << endl; Child c1("I am child 1"); boost::thread c1t(c1); } }; int main(){ Parent p1("I am parent 1: "); boost::thread p1t(p1); } --------------------------------- Everyone is raving about the all-new Yahoo! Mail beta.

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bind a boost::fusion::at_key
by Pierre viallet 24 Nov '06

24 Nov '06

Hi, I'm trying to bind boost::fusion::at_key, but i do not understand why the following piece of code do not compile : struct tag { class a; class b; class c; }; typedef boost::fusion::map< bf::pair<tag::a, size_t> , bf::pair<tag::b, size_t> , bf::pair<tag::c, size_t> > TMyFusionMap; TMyFusionMap aFusionMap(7,8,9); std::cout << boost::fusion::at_key<tag::b>(aFusionMap) << std::endl; //work std::cout << boost::bind(&boost::fusion::at_key<tag::b>, _1)(aFusionMap) << std::endl; //do not compile on msvc 8.0 std::cout << boost::bind<size_t &>(&boost::fusion::at_key<tag::b>, _1)(aFusionMap) << std::endl; //do not compile on msvc 8.0 any idear ? ___________________________________________________________________________ Découvrez une nouvelle façon d'obtenir des réponses à toutes vos questions ! Profitez des connaissances, des opinions et des expériences des internautes sur Yahoo! Questions/Réponses http://fr.answers.yahoo.com

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[MultiIndex] VC8: spurious compiler error
by Markus Werle 24 Nov '06

24 Nov '06

Hi! I am out of ideas here, but somebody probably fell into that trap before. Since the error message points to unrelated code, I hope to get some idea via Boost: boost_1_33_1\boost/multi_index/ordered_index.hpp(445) : error C2143: syntax error : missing ',' before '.' Since I had VC8 messing things up before I bet it is the #include order again, but I could not find the offending header yet. Markus

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Iterate over all matching items with hashed_non_unique
by Joseph Turian 24 Nov '06

24 Nov '06

I have a boost_multi_index with a hashed_non_unique key. I understand that if I do a .find() for a particular key, I can get a single entry with that key. However, I want to iterate over *ALL* the entries with this particular key, since there may be several. How do I do this? I can't figure out which is the correct end iterator. e.g. something along the following lines [haven't tried to compile] typedef FirstName string; typedef multi_index_container< Employee, indexed_by< hashed_non_unique<member<tag<FirstName>, Employee,FirstName,&Employee::first_name> > > > employee_set; typedef employee_set::index<FirstName>::type example_set_by_movie; boost::multi_index::get<FirstName>(m_employees).find("john"); -- http://www.cs.nyu.edu/~turian/

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[serialization] Difficulties with shared_ptr and export.hpp
by Deane Yang 24 Nov '06

24 Nov '06

First, I am trying to figure out how to use BOOST_CLASS_EXPORT. I am trying to do it using the following advice from the documentation: "As noted in the comments, this would work. But #include <.../export.hpp> can't be used without conflicting with other modules which use #include <.../*archive.hpp>. In this case we can move the export to an implementation file: // A.cpp #include "A.hpp" ... // export.hpp header should be last; #include <boost/serialization/export.hpp> ... BOOST_CLASS_EXPORT(A) ..." In fact, my implementation file contains *only* BOOST_CLASS_EXPORT statements. Code like this seems to compile only if I also include archive headers like: #include <boost/archive/xml_oarchive.hpp> #include <boost/archive/xml_iarchive.hpp> If these directives are omitted, then my code does not compile. Is this correct? (I didn't see anything about this in the documentation) But now if a class that is being exported contains a boost::shared_ptr<..> member (so I have to #include boost/serialization/shared_ptr.hpp), then I get the following compilation errors (in MSVC8.0express): ..\..\..\vendor\boost\boost/serialization/shared_ptr.hpp(134) : error C2039: 'reset' : is not a member of 'boost::archive::naked_xml_iarchive' ..\..\..\vendor\boost\boost/archive/xml_iarchive.hpp(91) : see declaration of 'boost::archive::naked_xml_iarchive' ..\..\..\vendor\boost\boost/serialization/split_free.hpp(58) : see reference to function template instantiation 'void boost::serialization::load<Archive,AndrewKalotayAssociates::Basic::Output::ValuationReport>(Archive &,boost::shared_ptr<T> &,const unsigned int)' being compiled Can someone tell from this what I'm doing wrong?

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building errors, ( shared_ptr.hpp:253: undefined reference to `AcceptEx@32' )
by sfinks 23 Nov '06

23 Nov '06

Hi. I'm trying to build libtorrent ( http://libtorrent.sf.net ) on xp+mingw+msys and I get some errors regarding boost. Hopefully someone can help.. Sorry if its not much of a boost problem.... I've attached compiler output text as as .txt file... ~/E/libtorrent-0.11 $ make make all-recursive make[1]: Entering directory `/home/devel/E/libtorrent-0.11' Making all in include make[2]: Entering directory `/home/devel/E/libtorrent-0.11/include' make[2]: Nothing to be done for `all'. make[2]: Leaving directory `/home/devel/E/libtorrent-0.11/include' Making all in zlib make[2]: Entering directory `/home/devel/E/libtorrent-0.11/zlib' make[2]: Nothing to be done for `all'. make[2]: Leaving directory `/home/devel/E/libtorrent-0.11/zlib' Making all in src make[2]: Entering directory `/home/devel/E/libtorrent-0.11/src' make[2]: Nothing to be done for `all'. make[2]: Leaving directory `/home/devel/E/libtorrent-0.11/src' Making all in test make[2]: Entering directory `/home/devel/E/libtorrent-0.11/test' /bin/sh ../libtool --tag=CXX --mode=link g++ -ftemplate-depth-50 -I../include -I../include/libtorrent -g -g -O2 -lboost_date_time -lboost_filesystem -lboost_thread -L/boost/lib -o test_piece_picker.exe main.o test_piece_picker.o ../src/libtorrent.la -lws2_32 g++ -ftemplate-depth-50 -I../include -I../include/libtorrent -g -g -O2 -o test_piece_picker.exe main.o test_piece_picker.o -L/boost/lib ../src/.libs/libtorrent.a -lboost_date_time -lboost_filesystem -lboost_thread -lws2_32 ../src/.libs/libtorrent.a(session_impl.o)(.text$_ZN4asio6detail23win_iocp_socket_serviceINS_2ip3tcpEE12async_acceptINS_12basic_socketIS3_NS_21stream_socket_serviceIS3_EEEEN5boost3_bi6bind_tIvNSA_4_mfi3mf3IvN10libtorrent3aux12session_implERKNSA_10shared_ptrINS_19basic_stream_socketIS3_S8_EEEERKNSA_8weak_ptrINS_21basic_socket_acceptorIS3_NS_23socket_acceptor_serviceIS3_EEEEEERKNS_5errorEEENSB_5list4INSB_5valueIPSH_EENS11_ISL_EENS11_IST_EENSA_3argILi1EEEEEEEEEvRNS4_19implementation_typeERT_T0_[void asio::detail::win_iocp_socket_service<asio::ip::tcp>::async_accept<asio::basic_socket<asio::ip::tcp, asio::stream_socket_service<asio::ip::tcp> >, boost::_bi::bind_t<void, boost::_mfi::mf3<void, libtorrent::aux::session_impl, boost::shared_ptr<asio::basic_stream_socket<asio::ip::tcp, asio::stream_socket_service<asio::ip::tcp> > > const&, boost::weak_ptr<asio::basic_socket_acceptor<asio::ip::tcp, asio::socket_acceptor_service<asio::ip::tcp> > > const&, asio::error const&>, boost::_bi::list4<boost::_bi::value<libtorrent::aux::session_impl*>, boost::_bi::value<boost::shared_ptr<asio::basic_stream_socket<asio::ip::tcp, asio::stream_socket_service<asio::ip::tcp> > > >, boost::_bi::value<boost::weak_ptr<asio::basic_socket_acceptor<asio::ip::tcp, asio::socket_acceptor_service<asio::ip::tcp> > > >, boost::arg<1> > > >(asio::detail::win_iocp_socket_service<asio::ip::tcp>::implementation_type&, asio::basic_socket<asio::ip::tcp, asio::stream_socket_service<asio::ip::tcp> >&, boost::_bi::bind_t<void, boost::_mfi::mf3<void, libtorrent::aux::session_impl, boost::shared_ptr<asio::basic_stream_socket<asio::ip::tcp, asio::stream_socket_service<asio::ip::tcp> > > const&, boost::weak_ptr<asio::basic_socket_acceptor<asio::ip::tcp, asio::socket_acceptor_service<asio::ip::tcp> > > const&, asio::error const&>, boost::_bi::list4<boost::_bi::value<libtorrent::aux::session_impl*>, boost::_bi::value<boost::shared_ptr<asio::basic_stream_socket<asio::ip::tcp, asio::stream_socket_service<asio::ip::tcp> > > >, boost::_bi::value<boost::weak_ptr<asio::basic_socket_acceptor<asio::ip::tcp, asio::socket_acceptor_service<asio::ip::tcp> > > >, boost::arg<1> > >)]+0x5a6): In function `ZN10libtorrent3aux12checker_impl12find_torrentERKNS_10big_numberE': E:/mingw/msys/1.0/boost/include/boost-1_33_1/boost/shared_ptr.hpp:253: undefined reference to `AcceptEx@32' ../src/.libs/libtorrent.a(session_impl.o)(.text$_ZN4asio6detail23win_iocp_socket_serviceINS_2ip3tcpEE16accept_operationINS_12basic_socketIS3_NS_21stream_socket_serviceIS3_EEEEN5boost3_bi6bind_tIvNSA_4_mfi3mf3IvN10libtorrent3aux12session_implERKNSA_10shared_ptrINS_19basic_stream_socketIS3_S8_EEEERKNSA_8weak_ptrINS_21basic_socket_acceptorIS3_NS_23socket_acceptor_serviceIS3_EEEEEERKNS_5errorEEENSB_5list4INSB_5valueIPSH_EENS11_ISL_EENS11_IST_EENSA_3argILi1EEEEEEEE18do_completion_implEPNS0_18win_iocp_operationEmj[asio::detail::win_iocp_socket_service<asio::ip::tcp>::accept_operation<asio::basic_socket<asio::ip::tcp, asio::stream_socket_service<asio::ip::tcp> >, boost::_bi::bind_t<void, boost::_mfi::mf3<void, libtorrent::aux::session_impl, boost::shared_ptr<asio::basic_stream_socket<asio::ip::tcp, asio::stream_socket_service<asio::ip::tcp> > > const&, boost::weak_ptr<asio::basic_socket_acceptor<asio::ip::tcp, asio::socket_acceptor_service<asio::ip::tcp> > > const&, asio::error const&>, boost::_bi::list4<boost::_bi::value<libtorrent::aux::session_impl*>, boost::_bi::value<boost::shared_ptr<asio::basic_stream_socket<asio::ip::tcp, asio::stream_socket_service<asio::ip::tcp> > > >, boost::_bi::value<boost::weak_ptr<asio::basic_socket_acceptor<asio::ip::tcp, asio::socket_acceptor_service<asio::ip::tcp> > > >, boost::arg<1> > > >::do_completion_impl(asio::detail::win_iocp_operation*, unsigned long, unsigned int)]+0x549): In function `ZN10libtorrent3aux12checker_impl12find_torrentERKNS_10big_numberE': E:/mingw/msys/1.0/home/devel/E/libtorrent-0.11/src/session_impl.cpp:403: undefined reference to `GetAcceptExSockaddrs@32' ../src/.libs/libtorrent.a(session_impl.o)(.text$_ZN4asio6detail23win_iocp_socket_serviceINS_2ip3tcpEE16accept_operationINS_12basic_socketIS3_NS_21stream_socket_serviceIS3_EEEEN5boost3_bi6bind_tIvNSA_4_mfi3mf3IvN10libtorrent3aux12session_implERKNSA_10shared_ptrINS_19basic_stream_socketIS3_S8_EEEERKNSA_8weak_ptrINS_21basic_socket_acceptorIS3_NS_23socket_acceptor_serviceIS3_EEEEEERKNS_5errorEEENSB_5list4INSB_5valueIPSH_EENS11_ISL_EENS11_IST_EENSA_3argILi1EEEEEEEE18do_completion_implEPNS0_18win_iocp_operationEmj[asio::detail::win_iocp_socket_service<asio::ip::tcp>::accept_operation<asio::basic_socket<asio::ip::tcp, asio::stream_socket_service<asio::ip::tcp> >, boost::_bi::bind_t<void, boost::_mfi::mf3<void, libtorrent::aux::session_impl, boost::shared_ptr<asio::basic_stream_socket<asio::ip::tcp, asio::stream_socket_service<asio::ip::tcp> > > const&, boost::weak_ptr<asio::basic_socket_acceptor<asio::ip::tcp, asio::socket_acceptor_service<asio::ip::tcp> > > const&, asio::error const&>, boost::_bi::list4<boost::_bi::value<libtorrent::aux::session_impl*>, boost::_bi::value<boost::shared_ptr<asio::basic_stream_socket<asio::ip::tcp, asio::stream_socket_service<asio::ip::tcp> > > >, boost::_bi::value<boost::weak_ptr<asio::basic_socket_acceptor<asio::ip::tcp, asio::socket_acceptor_service<asio::ip::tcp> > > >, boost::arg<1> > > >::do_completion_impl(asio::detail::win_iocp_operation*, unsigned long, unsigned int)]+0xa6e): In function `ZN10libtorrent3aux12session_impl9pop_alertEv': E:/mingw/msys/1.0/home/devel/E/libtorrent-0.11/src/session_impl.cpp:1579: undefined reference to `AcceptEx@32' collect2: ld returned 1 exit status make[2]: *** [test_piece_picker.exe] Error 1 make[2]: Leaving directory `/home/devel/E/libtorrent-0.11/test' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/home/devel/E/libtorrent-0.11' make: *** [all] Error 2 ~/E/libtorrent-0.11 $ ls -l /opt/lib/ total 280094 -rw-r--r-- 1 devel Administ 105551252 Nov 22 17:45 libtorrent.a -rw-r--r-- 1 devel Administ 817 Nov 22 17:45 libtorrent.la -rw-r--r-- 1 devel Administ 79398984 Nov 21 16:37 libwx_based-2.6.a -rw-r--r-- 1 devel Administ 12517024 Nov 21 16:37 libwx_based_net-2.6.a -rw-r--r-- 1 devel Administ 2046608 Nov 21 16:37 libwx_based_xml-2.6.a -rw-r--r-- 1 devel Administ 22094294 Nov 21 16:37 libwx_mswd_adv-2.6.a -rw-r--r-- 1 devel Administ 246483262 Nov 21 16:37 libwx_mswd_core-2.6.a -rw-r--r-- 1 devel Administ 28995300 Nov 21 16:37 libwx_mswd_html-2.6.a -rw-r--r-- 1 devel Administ 3661674 Nov 21 16:37 libwx_mswd_media-2.6.a -rw-r--r-- 1 devel Administ 2703630 Nov 21 16:37 libwx_mswd_qa-2.6.a -rw-r--r-- 1 devel Administ 53627348 Nov 21 16:37 libwx_mswd_xrc-2.6.a -rw-r--r-- 1 devel Administ 370560 Nov 21 16:37 libwxexpatd-2.6.a -rw-r--r-- 1 devel Administ 1252132 Nov 21 16:37 libwxjpegd-2.6.a -rw-r--r-- 1 devel Administ 647620 Nov 21 16:37 libwxpngd-2.6.a -rw-r--r-- 1 devel Administ 271688 Nov 21 16:37 libwxregexd-2.6.a -rw-r--r-- 1 devel Administ 13801246 Nov 21 16:37 libwxtiffd-2.6.a -rw-r--r-- 1 devel Administ 199692 Nov 21 16:37 libwxzlibd-2.6.a drwxr-xr-x 4 devel Administ 0 Nov 21 16:37 wx

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[mpl::map] pregeneration of long types map (150 types)
by Ovanes Markarian 23 Nov '06

23 Nov '06

Hello Alexey, using the C++ preprocessor macro to generate map of 150 types works fine and code which uses the new mapN type compiles and runs fine as well. Just as you described it in the post: http://lists.boost.org/boost-users/2006/11/23321.php We have successfully tested it with 115 elements. Then we tried to switch to the second approach with pregenerated types. The problem we face is that the python script generates empty headers. To avoid all errors we just copied <boost_root>\boost\mpl\map\map50.hpp to <boost_root>\boost\mpl\map\map60.hpp and changed the file accordingly. Here the modified source: // // Distributed under the Boost Software License, Version 1.0. // (See accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) // // See http://www.boost.org/libs/mpl for documentation. // $Source: /cvsroot/boost/boost/boost/mpl/map/map50.hpp,v $ // $Date: 2004/09/02 15:40:59 $ // $Revision: 1.2 $ #if !defined(BOOST_MPL_PREPROCESSING_MODE) # include <boost/mpl/map/map50.hpp> #endif #include <boost/mpl/aux_/config/use_preprocessed.hpp> #if !defined(BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS) \ && !defined(BOOST_MPL_PREPROCESSING_MODE) # define BOOST_MPL_PREPROCESSED_HEADER map60.hpp # include <boost/mpl/map/aux_/include_preprocessed.hpp> #else # include <boost/preprocessor/iterate.hpp> namespace boost { namespace mpl { # define BOOST_PP_ITERATION_PARAMS_1 \ (3,(51, 60, <boost/mpl/map/aux_/numbered.hpp>)) # include BOOST_PP_ITERATE() }} #endif // BOOST_MPL_CFG_NO_PREPROCESSED_HEADERS #endif // BOOST_MPL_MAP_MAP60_HPP_INCLUDED Afterwards we did the same with the CPP file in <boost_root>\libs\mpl\preprocessed\map\: // Copyright Aleksey Gurtovoy 2003-4004 // // Distributed under the Boost Software License, Version 1.0. // (See accompanying file LICENSE_1_0.txt or copy at // http://www.boost.org/LICENSE_1_0.txt) // // See http://www.boost.org/libs/mpl for documentation. // $Source: /cvsroot/boost/boost/libs/mpl/preprocessed/map/map50.cpp,v $ // $Date: 2004/09/05 09:45:17 $ // $Revision: 1.3 $ #define BOOST_MPL_PREPROCESSING_MODE #include <boost/config.hpp> #include <boost/mpl/map/map60.hpp> gcc is installed and is registered in the PATH variable. OS Win XP, GCC version: gcc (GCC) 3.4.4 (cygming special) (gdc 0.12, using dmd 0.125) Copyright (C) 2004 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Calling the python script command like: $prompt>python ./preprocess_map.py all E:/global_libs/boost_1_33_1 map60.cpp Produces the output: E:\global_libs\boost_1_33_1\libs\mpl\preprocessed>gcc -E -C -P -IE:/global_libs/ boost_1_33_1 "-D BOOST_USER_CONFIG=<E:/global_libs/boost_1_33_1/libs/mpl/preproc essed/include/plain/user.hpp>" -D BOOST_MPL_CFG_NO_OWN_PP_PRIMITIVES E:\global_l ibs\boost_1_33_1\libs\mpl\preprocessed\map\map60.cpp 1>E:\global_libs\boost_1_3 3_1\libs\mpl\preprocessed\map\map60.hpp E:\global_libs\boost_1_33_1\libs\mpl\preprocessed>gcc -E -C -P -IE:/global_libs/ boost_1_33_1 "-D BOOST_USER_CONFIG=<E:/global_libs/boost_1_33_1/libs/mpl/preproc essed/include/typeof_based/user.hpp>" -D BOOST_MPL_CFG_NO_OWN_PP_PRIMITIVES E:\g lobal_libs\boost_1_33_1\libs\mpl\preprocessed\map\map60.cpp 1>E:\global_libs\bo ost_1_33_1\libs\mpl\preprocessed\map\map60.hpp E:\global_libs\boost_1_33_1\libs\mpl\preprocessed>gcc -E -C -P -IE:/global_libs/ boost_1_33_1 "-D BOOST_USER_CONFIG=<E:/global_libs/boost_1_33_1/libs/mpl/preproc essed/include/no_ctps/user.hpp>" -D BOOST_MPL_CFG_NO_OWN_PP_PRIMITIVES E:\global _libs\boost_1_33_1\libs\mpl\preprocessed\map\map60.cpp 1>E:\global_libs\boost_1 _33_1\libs\mpl\preprocessed\map\map60.hpp But the resulting files in pregenerated directories have the size 0. Doing the same thing by passing map50.cpp works just fine and pregenerates new files. Is there smth, that I miss? With Kind Regards, Ovanes Markarian

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[serialization] Trouble serializing a bitfield
by Ken Roser 23 Nov '06

23 Nov '06

Following is a very short program to test serialization along with the g++ output when compiling it. My problem arises when I try to write a serialization function for a bitfield. As the compiler output shows, the bitfield is the cause of this problem. How should one serialize a bitfield? Have I made some mistake in this code? I can get seriailziation to work if I instead use a save() and load() function that copies each bit to an int before archiving but I'm unsure if this is the best way. #include <stdlib.h> #include <string> #include <iostream> #include <sstream> #include <boost/archive/archive_exception.hpp> #include <boost/archive/binary_iarchive.hpp> #include <boost/archive/binary_oarchive.hpp> #include <boost/archive/text_iarchive.hpp> #include <boost/archive/text_oarchive.hpp> #include <boost/serialization/export.hpp> #include <boost/serialization/serialization.hpp> #include <boost/serialization/list.hpp> class Event { friend class boost::serialization::access; template<class Archive> void serialize(Archive &ar, const int version) { ar & bits; ar & field1; }; public: struct s { friend class boost::serialization::access; template<class Archive> void serialize(Archive &ar, const int version) { ar & spare1; }; int spare1 : 1; } bits; int field1; }; main(int argc, char **argv) { Event *evt = new Event; evt->field1 = 0x1234; std::stringstream ofs; boost::archive::binary_oarchive oa(ofs); oa & *evt; // serialize the event } serial2.cpp: In member function 'void Event::s::serialize(Archive&, int) [with Archive = boost::archive::binary_oarchive]': boost/serialization/access.hpp:109: instantiated from 'static void boost::serialization::access::serialize(Archive&, T&, unsigned int) [with Archive = boost::archive::binary_oarchive, T = Event::s]' boost/serialization/serialization.hpp:81: instantiated from 'void boost::serialization::serialize(Archive&, T&, unsigned int) [with Archive = boost::archive::binary_oarchive, T = Event::s]' boost/serialization/serialization.hpp:140: instantiated from 'void boost::serialization::serialize_adl(Archive&, T&, unsigned int) [with Archive = boost::archive::binary_oarchive, T = Event::s]' boost/archive/detail/oserializer.hpp:147: instantiated from 'void boost::archive::detail::oserializer<Archive, T>::save_object_data(boost::archive::detail::basic_oarchive&, const void*) const [with Archive = boost::archive::binary_oarchive, T = Event::s]' serial2.cpp:43: instantiated from here serial2.cpp:29: error: cannot bind bitfield '((Event::s*)this)->Event::s::spare1' to 'int&'

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program_options inconsistent dll linkage
by Elsbeth 23 Nov '06

23 Nov '06

Hi We were having problems while linking boost program_options dynamically in Visual Studio.NET Linking to lib file: boost_program_options-vc71-mt-gd-1_33.lib d:\Develop\SDK and Libraries\boost_1_33_0\boost\program_options\variables_map.hpp(130) : warning C4273: 'boost::program_options::store' : inconsistent dll linkage d:\Develop\SDK and Libraries\boost_1_33_0\boost\program_options\variables_map.hpp(138) : warning C4273: 'boost::program_options::store' : inconsistent dll linkage Problem is that in file variables_map.hpp 'BOOST_PROGRAM_OPTIONS_DECL ' is missing in friend declaration of function 'store'. so: ======================= class BOOST_PROGRAM_OPTIONS_DECL variables_map : public abstract_variables_map, public std::map<std::string, variable_value> { ... friend void store(...); }; ... BOOST_PROGRAM_OPTIONS_DECL void store(...); ======================= should be: ======================= class BOOST_PROGRAM_OPTIONS_DECL variables_map : public abstract_variables_map, public std::map<std::string, variable_value> { ... friend void BOOST_PROGRAM_OPTIONS_DECL store(...); }; ... BOOST_PROGRAM_OPTIONS_DECL void store(...); =======================

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Re: [Boost-users] debugging templates
by Hughes, James 23 Nov '06

23 Nov '06

> > Berenguer Blasi wrote: > > > > Is there a way to debug templates? with kdbg preferrably? > > What's your specific problem in debugging template code? > Certainly you could debug templated C++ code with any gdb > frontend. As James already said, this could get rather > confusing, but it's possible without a doubt. > > > > James Hughes wrote: > > Kgdb??? The Linux kernel debugger?? Since the kernel is all > C, how can > > you > use templates > in it? > > > > Forgive me if I am missing something!! > > I think he means the KDE frontend to gdb, usually embedded > into KDevelop. Ah, OK. Too many TLA's... As an aside, I use the Eclipse IDE, with the CDT, and that has a good enough front end for GDB to debug most stuff. Latest version is much better than the one from a year back or so. > > Regards > Hendrik > > > > _______________________________________________ > Boost-users mailing list > Boost-users(a)lists.boost.org > http://lists.boost.org/mailman/listinfo.cgi/boost-users > This message (including any attachments) contains confidential and/or proprietary information intended only for the addressee. Any unauthorized disclosure, copying, distribution or reliance on the contents of this information is strictly prohibited and may constitute a violation of law. If you are not the intended recipient, please notify the sender immediately by responding to this e-mail, and delete the message from your system. If you have any questions about this e-mail please notify the sender immediately.

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