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Any functions for URL parsing?
by Timothy Madden 08 Aug '10

08 Aug '10

Hello Is there a library in boost to parse an URL ? Like to extract the protocol, username, password, hostname, port, resource, query parametrs, fragment identifiers ? I can see some things about it using the on-site search, but the pages in the results are not accessible and I can find nothing conclusive. Thank you, Timothy Madden

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VS2010 and /clr: fatal error C1001: An internal error has occurred in the compiler
by Soren Dreijer 08 Aug '10

08 Aug '10

I recently switched our product over to VS2010 from VS2008. Our solution consists of several native C++ projects and some managed C++ projects that link to those native projects. The managed C++ projects are compiled with the /clr flag, of course. However, when compiling for x64, one of the files that includes one of the boost mutex headers causes the compiler to spit out the following error: boost_1_43_0_sdk\include\boost\thread\win32\basic_timed_mutex.hpp(158): fatal error C1001: An internal error has occurred in the compiler I've traced down the problem to the following piece of code in basic_timed_mutex.hpp: void unlock() { long const offset=lock_flag_value; // If I comment out this line, compilation works long const old_count=BOOST_INTERLOCKED_EXCHANGE_ADD(&active_count,lock_flag_value); if(!(old_count&event_set_flag_value) && (old_count>offset)) { if(!win32::interlocked_bit_test_and_set(&active_count,event_set_flag_bit )) { win32::SetEvent(get_event()); } } } It would see the BOOST_INTERLOCKED_EXCHANGE_ADD macro causes the compiler to barf. Does anybody have any ideas on why this is, or how to fix it? Cheers, Soren

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[Serialization] Failed to Link "A Very Simple Case"
by Hossein Haeri 07 Aug '10

07 Aug '10

Dear all, Trying the first example of the Boost.Serialization (A Very Simple Case): http://boost-sandbox.sourceforge.net/boost_1_43_0/libs/serialization/doc/tu… I get the error messages in the P.S. section with GCC 4.4.0 MinGW WinXP. Any ideas? TIA, --Hossein P.S. Compiling: main.cpp Linking console executable: bin\Debug\Serial.exe obj\Debug\main.o: In function `text_oarchive': /archive/text_oarchive.hpp:92: undefined reference to `boost::archive::text_oarchive_impl<boost::archive::text_oarchive>::text_oarchive_impl(std::ostream&, unsigned int)' obj\Debug\main.o: In function `text_iarchive': /archive/text_iarchive.hpp:129: undefined reference to `boost::archive::text_iarchive_impl<boost::archive::text_iarchive>::text_iarchive_impl(std::istream&, unsigned int)' /archive/text_iarchive.hpp:129: undefined reference to `boost::archive::detail::shared_ptr_helper::shared_ptr_helper()' obj\Debug\main.o: In function `~text_iarchive': /archive/text_iarchive.hpp:131: undefined reference to `boost::archive::detail::shared_ptr_helper::~shared_ptr_helper()' /archive/text_iarchive.hpp:131: undefined reference to `boost::archive::detail::shared_ptr_helper::~shared_ptr_helper()' obj\Debug\main.o: In function `~text_oarchive_impl': /archive/text_oarchive.hpp:77: undefined reference to `boost::archive::basic_text_oprimitive<std::ostream>::~basic_text_oprimitive()' /archive/text_oarchive.hpp:77: undefined reference to `boost::archive::basic_text_oprimitive<std::ostream>::~basic_text_oprimitive()' /archive/text_oarchive.hpp:77: undefined reference to `boost::archive::basic_text_oprimitive<std::ostream>::~basic_text_oprimitive()' /archive/text_oarchive.hpp:77: undefined reference to `boost::archive::basic_text_oprimitive<std::ostream>::~basic_text_oprimitive()' /archive/text_oarchive.hpp:77: undefined reference to `boost::archive::basic_text_oprimitive<std::ostream>::~basic_text_oprimitive()' obj\Debug\main.o: /archive/text_oarchive.hpp:77: more undefined references to `boost::archive::basic_text_oprimitive<std::ostream>::~basic_text_oprimitive()' follow obj\Debug\main.o: In function `~text_iarchive_impl': /archive/text_iarchive.hpp:80: undefined reference to `boost::archive::basic_text_iprimitive<std::istream>::~basic_text_iprimitive()' /archive/text_iarchive.hpp:80: undefined reference to `boost::archive::basic_text_iprimitive<std::istream>::~basic_text_iprimitive()' /archive/text_iarchive.hpp:80: undefined reference to `boost::archive::basic_text_iprimitive<std::istream>::~basic_text_iprimitive()' /archive/text_iarchive.hpp:80: undefined reference to `boost::archive::basic_text_iprimitive<std::istream>::~basic_text_iprimitive()' /archive/text_iarchive.hpp:80: undefined reference to `boost::archive::basic_text_iprimitive<std::istream>::~basic_text_iprimitive()' obj\Debug\main.o: /archive/text_iarchive.hpp:80: more undefined references to `boost::archive::basic_text_iprimitive<std::istream>::~basic_text_iprimitive()' follow obj\Debug\main.o: In function `~common_oarchive': archive/detail/common_oarchive.hpp:38: undefined reference to `boost::archive::detail::basic_oarchive::~basic_oarchive()' /archive/detail/common_oarchive.hpp:38: undefined reference to `boost::archive::detail::basic_oarchive::~basic_oarchive()' /archive/detail/common_oarchive.hpp:38: undefined reference to `boost::archive::detail::basic_oarchive::~basic_oarchive()' obj\Debug\main.o: In function `~common_iarchive': /archive/detail/common_iarchive.hpp:43: undefined reference to `boost::archive::detail::basic_iarchive::~basic_iarchive()' /archive/detail/common_iarchive.hpp:43: undefined reference to `boost::archive::detail::basic_iarchive::~basic_iarchive()' /archive/detail/common_iarchive.hpp:43: undefined reference to `boost::archive::detail::basic_iarchive::~basic_iarchive()' obj\Debug\main.o: /archive/detail/oserializer.hpp:253: undefined reference to `boost::archive::detail::basic_oarchive::save_object(void const*, boost::archive::detail::basic_oserializer const&)' obj\Debug\main.o: /archive/detail/iserializer.hpp:381: undefined reference to `boost::archive::detail::basic_iarchive::load_object(void*, boost::archive::detail::basic_iserializer const&)' obj\Debug\main.o: In function `oserializer': /archive/detail/oserializer.hpp:112: undefined reference to `boost::archive::detail::basic_oserializer::basic_oserializer(boost::serialization::extended_type_info const&)' obj\Debug\main.o: In function `~oserializer': /archive/detail/oserializer.hpp:133: undefined reference to `boost::archive::detail::basic_oserializer::~basic_oserializer()' /archive/detail/oserializer.hpp:133: undefined reference to `boost::archive::detail::basic_oserializer::~basic_oserializer()' /archive/detail/oserializer.hpp:133: undefined reference to `boost::archive::detail::basic_oserializer::~basic_oserializer()' obj\Debug\main.o: In function `iserializer': /archive/detail/iserializer.hpp:133: undefined reference to `boost::archive::detail::basic_iserializer::basic_iserializer(boost::serialization::extended_type_info const&)' obj\Debug\main.o: In function `~iserializer': /archive/detail/iserializer.hpp:158: undefined reference to `boost::archive::detail::basic_iserializer::~basic_iserializer()' /archive/detail/iserializer.hpp:158: undefined reference to `boost::archive::detail::basic_iserializer::~basic_iserializer()' /archive/detail/iserializer.hpp:158: undefined reference to `boost::archive::detail::basic_iserializer::~basic_iserializer()' obj\Debug\main.o: In function `extended_type_info_typeid': /serialization/extended_type_info_typeid.hpp:86: undefined reference to `boost::serialization::typeid_system::extended_type_info_typeid_0::extended_type_info_typeid_0(char const*)' /serialization/extended_type_info_typeid.hpp:88: undefined reference to `boost::serialization::typeid_system::extended_type_info_typeid_0::type_register(std::type_info const&)' /serialization/extended_type_info_typeid.hpp:89: undefined reference to `boost::serialization::extended_type_info::key_register() const' /serialization/extended_type_info_typeid.hpp:89: undefined reference to `boost::serialization::typeid_system::extended_type_info_typeid_0::~extended_type_info_typeid_0()' obj\Debug\main.o: In function `~extended_type_info_typeid': /serialization/extended_type_info_typeid.hpp:92: undefined reference to `boost::serialization::extended_type_info::key_unregister() const' /serialization/extended_type_info_typeid.hpp:93: undefined reference to `boost::serialization::typeid_system::extended_type_info_typeid_0::type_unregister()' /serialization/extended_type_info_typeid.hpp:93: undefined reference to `boost::serialization::typeid_system::extended_type_info_typeid_0::~extended_type_info_typeid_0()' /serialization/extended_type_info_typeid.hpp:93: undefined reference to `boost::serialization::typeid_system::extended_type_info_typeid_0::~extended_type_info_typeid_0()' /serialization/extended_type_info_typeid.hpp:92: undefined reference to `boost::serialization::extended_type_info::key_unregister() const' /serialization/extended_type_info_typeid.hpp:93: undefined reference to `boost::serialization::typeid_system::extended_type_info_typeid_0::type_unregister()' /serialization/extended_type_info_typeid.hpp:93: undefined reference to `boost::serialization::typeid_system::extended_type_info_typeid_0::~extended_type_info_typeid_0()' /serialization/extended_type_info_typeid.hpp:93: undefined reference to `boost::serialization::typeid_system::extended_type_info_typeid_0::~extended_type_info_typeid_0()' /serialization/extended_type_info_typeid.hpp:92: undefined reference to `boost::serialization::extended_type_info::key_unregister() const' /serialization/extended_type_info_typeid.hpp:93: undefined reference to `boost::serialization::typeid_system::extended_type_info_typeid_0::type_unregister()' /serialization/extended_type_info_typeid.hpp:93: undefined reference to `boost::serialization::typeid_system::extended_type_info_typeid_0::~extended_type_info_typeid_0()' /serialization/extended_type_info_typeid.hpp:93: undefined reference to `boost::serialization::typeid_system::extended_type_info_typeid_0::~extended_type_info_typeid_0()' obj\Debug\main.o:main.cpp:(.rdata$_ZTVN5boost13serialization6detail17singleton_wrapperINS0_25extended_type_info_typeidI12gps_positionEEEE[vtable for boost::serialization::detail::singleton_wrapper<boost::serialization::extended_type_info_typeid<gps_position> >]+0x8): undefined reference to `boost::serialization::typeid_system::extended_type_info_typeid_0::is_less_than(boost::serialization::extended_type_info const&) const' Process terminated with status 1 (0 minutes, 18 seconds) 50 errors, 0 warnings

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composite iterator_adaptor
by Olaf Peter 07 Aug '10

07 Aug '10

Hello, the snippet below doesn't compile due to a missing constructor. Changes to const std::string doesn't compile too. Is this intentionally or misuse it? How to fix it? Here the error from from clang: /opt/clang/bin/clang++ -I /home/olaf/Projects/programming/cpp/boost/trunk/ iterator_composite.cpp -o iterator_composite iterator_composite.cpp:70:36: error: no matching constructor for initialization of 'client::default_input_iterator' (aka 'boost::filter_iterator<detail::equal_to<typename basic_iterator_type::value_type>, basic_iterator_type>') client::default_input_iterator first( rng.begin() ); ^ ~~~~~~~~~~~ Thanks, Olaf

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[serialization] Undefined reference to archive_serializer_map when creating my own archive type
by Maxime van Noppen 07 Aug '10

07 Aug '10

Hi, I'm trying to create my own archive type and I'm struggling with this error message : > $ g++ test.cc -lboost_serialization > /tmp/cc5aW7rV.o: In function `boost::archive::detail::pointer_oserializer<sql_oarchive, internal::unit>::pointer_oserializer()': > test.cc:(.text._ZN5boost7archive6detail19pointer_oserializerI12sql_oarchiveN8internal4unitEEC2Ev[_ZN5boost7archive6detail19pointer_oserializerI12sql_oarchiveN8internal4unitEEC5Ev]+0x4f): undefined reference to `boost::archive::detail::archive_serializer_map<sql_oarchive>::insert(boost::archive::detail::basic_serializer const*)' > /tmp/cc5aW7rV.o: In function `boost::archive::detail::pointer_oserializer<sql_oarchive, internal::unit>::~pointer_oserializer()': > test.cc:(.text._ZN5boost7archive6detail19pointer_oserializerI12sql_oarchiveN8internal4unitEED2Ev[_ZN5boost7archive6detail19pointer_oserializerI12sql_oarchiveN8internal4unitEED5Ev]+0x24): undefined reference to `boost::archive::detail::archive_serializer_map<sql_oarchive>::erase(boost::archive::detail::basic_serializer const*)' I can't find the relevant part of the documentation which talks about it. Adding this piece of code makes the code compile but it doesn't work: > namespace boost { namespace archive { namespace detail { > template <> > bool archive_serializer_map<sql_oarchive>::insert(boost::archive::detail::basic_serializer const*) > { > // ?? > } > > template <> > void archive_serializer_map<sql_oarchive>::erase(boost::archive::detail::basic_serializer const*) > { > // ?? > } > } } } I'm using boost 1.43 on g++ 4.5 on linux 64bits. The code is attached. What am I missing ? Thanks, -- Maxime

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cannot find namespace boost?
by Andreas Ronnquist 07 Aug '10

07 Aug '10

Hi! When compiling my project using Boost 1.43 and Visual C++ 2010 Express I get the following: error C2653: 'boost' : is not a class or namespace name error C2143: syntax error : missing ';' before '<' error C4430: missing type specifier - int assumed. Note: C++ does not support default-int error C2238: unexpected token(s) preceding ';' where I am using boost::shared_ptr<Some_Class> Is this some simple newb mistake I am making? This is on a cmake-based project, which works just fine with boost 1.37, but there on the other hand I get a whole lot of warnings like this: "Unknown compiler version - please run the configure tests and report the results" which I interpret as Visual C++ 2010 being too new to be recognized by the older version of boost. Is this some major change in boost that I have missed? I am just using this shared_ptr, and I believe that it is only header-based, and I don't need to compile boost to use it? Is that wrong? best regards -- Andreas Ronnquist <gusnan(a)gusnan.se>

2 2

Trouble building 32bit version
by Noah Roberts 06 Aug '10

06 Aug '10

I have a 64bit Linux system and I need to build boost for 32bit in order to link to this library I have to use. Trouble is that I keep getting this error when I try to link to any boost library: nroberts@Adad:~$ g++ test.cpp -m32 -L/home/nroberts/boost-x86/lib -lboost_thread-gcc44-mt /home/nroberts/boost-x86/lib/libboost_thread-gcc44-mt.so: undefined reference to `__sync_fetch_and_add_4' collect2: ld returned 1 exit status test.cpp just contains an empty main(). I've tried google and arrived at various places: http://stackoverflow.com/questions/130740/link-error-when-compiling-gcc-ato… http://old.nabble.com/compiling-32-bit-boost-libraries-on-a-64-bit-system--… Among others. I'm trying to build version 1.38. Here's my last attempt at supplying bjam with the correct parameters: bjam architecture=x86 address-model=32 toolset=gcc instruction-set=i686 stage It's funny though, even at the link in the reply held at nabble.com the documentation doesn't seem to have anything on any of these parameters. They don't appear in the bjam --help output either. So I seem to be kind of screwed in figuring this out myself. I'm just trying to guess until I get it but I'm out of ideas. What do I need to do? Thanks.

2 2

[assign] Default list_of() behavior
by Ryan McConnehey 06 Aug '10

06 Aug '10

None of the examples, for list_of, show the use of the default list_of constructor. When I tried to use list_of() for a vector I expected a blank vector without any elements. What I found was a vector that had one element of the vector type. This element had a default value. Is this the correct behavior? t_ucvector temp( list_of() ); //The temp vector has one element of type unsigned char with a default value of zero. There is a structure with a couple of constant std::vectors that are being initializing in the constructor's preamble. I've included the structure with the working version of the code. I've included the desired creation of the std::vector, but because of list_of() is not working. Thank you for your help. Ryan struct SplitterFixture { public: SplitterFixture(void) : header(list_of(2)(2)) , messageA(list_of('a').repeat(2,'a')) , input(t_boostVector(new t_ucvector(list_of(2)(2).range(messageA)))) //Desired implementation. //: header(list_of().repeat(2,'2')) //, messageA(list_of().repeat(3,'a')) //, input(t_boostVector(new t_ucvector(list_of().range(header).range(messageA)))) {} public: typedef std::vector<unsigned char> t_ucvector; typedef boost::shared_ptr<t_ucvector> t_boostVector; public: t_ucvector const header; t_ucvector const messageA; t_boostVector const input; };

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[preprocessor] removing parentheses
by Edward Diener 06 Aug '10

06 Aug '10

I have a single macro parameter which allows its passed value to contain commas. Therefore the user of the macro needs parentheses around the parameter if it contains one or more commas ( to does not have to ). When processing this parameter in a macro I would like to remove the outer parentheses if they are there before passing the value on for further processing. Is there a way to do this using some preprocessor library macro ?

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x86_64 needs -fPIC issue, anyone successful?
by Bill Freeman 06 Aug '10

06 Aug '10

I'm trying to build a library (librets) that links against boost libraries in order to build a shared library (as part of a SWIG based python extension). The target machine, as well as all of my development machines at the moment, are the x86_64 architecture. I've done most of my work on an ubuntu 9.04 box. I've tried with the boost packages available from the ubuntu repositores, and I have also, in case those packages were miss-built, successfully built (and tried the examples, successfully) boost 1.43.0 from source, getting no errors from ./bjam install . In either case, I wind up with the following error when trying to build librets: /usr/bin/ld: /home/f/Desktop/rets/lib/libboost_system.a(error_code.o): relocation R_X86_64_32 against `.rodata.str1.1' can not be used when making a shared object; recompile with -fPIC Googling around, this seems to be a problem only seen on x86_64 machines. (Why one doesn't need to make position independent code for the 32 bit machines, if that is in fact true, is beyond me.) So, I'm wondering if someone else with this issue has already figured out how to get around it. Or, if not, can someone tell me how to tell the bjam stuff to apply -fPIC so that I can try that. (I'm an old timer. If it were make based, I could hack it myself, but I'm hesitant to learn all about the boost build system for what is for me a side task.) Or if someone knows that the -fPIC won't help, or has alternate suggestions, please let me know. TIA, Bill

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