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multiple definitions of symbol with Boost.Test
by Ross Boylan 27 Dec '05

27 Dec '05

When I try to link a test suite I get this: ld: multiple definitions of symbol boost::test_tools::(anonymous namespace)::check_is_close mspathCEntry_test.o definition of boost::test_tools::(anonymous namespace)::check_is_close in section (__DATA,__data) ModelBuilder_test.o definition of boost::test_tools::(anonymous namespace)::check_is_close in section (__DATA,__data) ld: multiple definitions of symbol boost::test_tools::(anonymous namespace)::check_is_small mspathCEntry_test.o definition of boost::test_tools::(anonymous namespace)::check_is_small in section (__DATA,__data) ModelBuilder_test.o definition of boost::test_tools::(anonymous namespace)::check_is_small in section (__DATA,__data) LinearProduct_test.o definition of boost::test_tools::(anonymous namespace)::check_is_close in section (__DATA,__data) LinearProduct_test.o definition of boost::test_tools::(anonymous namespace)::check_is_small in section (__DATA,__data) ..... This is with boost 1.33 on Darwin/OS-X. The same code was building OK with the 1.31 libraries (and 1.32 on linux, I think). I'm using libtool. Here's the makefile output before those errors (I've deleted some of the files on the command line to save space): ../libtool --mode=link --tag=CXX g++ -o test1 -g AbstractTimeStepsGenerator.o Coefficients.o -lboost_unit_test_framework -L/usr/local/lib/boost-1_33_1 g++ -o test1 -g AbstractTimeStepsGenerator.o Coefficients.o Covariates.o -Wl,-bind_\ at_load -lboost_unit_test_framework -L/usr/local/lib/boost-1_33_1 There are several copies of various flavors of the library lying around, but I don't think any are on the default library paths. So I think I'm only getting the one in /usr/local/lib/boost-1_33_1. It looks as if each invocation of, e.g., BOOST_CHECK_CLOSE, is generating a defiition for the symbols on which I'm getting duplicates. But why would it do that? Any suggestions, or ideas what might be going wrong? Thanks. Ross Boylan Here are some possibly relevant details. Example code: -------------------------------------------------- #include <cstdlib> #include <fstream> #include <iostream> #include <iterator> #include <vector> #include <boost/test/auto_unit_test.hpp> #include <boost/test/floating_point_comparison.hpp> using namespace boost::unit_test_framework; #include "basic.h" #include "Data.h" #include "Model.h" #include "mspath.h" #include "main_test.h" using namespace mspath; using namespace std; static Data * readInputDataFile() { //.... } BOOST_AUTO_UNIT_TEST(CEntry){ if (gOptions.input1() == 0) { BOOST_ERROR("Skipping mspathCEntry test. You need to specify an input file."); return; }; cout.imbue(locale("")); Data* pdata = readInputDataFile(); // ..... BOOST_CHECK_CLOSE(results[0], 2835.43092, tol); // .... } ------------------------------ Maybe I'm messing things up by rolling my own outer level code for the auto-unit tests: ------------------------------------- #include "main_test.h" #include <boost/test/auto_unit_test.hpp> #include "basic.h" // g for global // It's ugly, but it works. mspath::TestOptions mspath::gOptions; /* The following function is just a slight modification to the usual product of #define BOOST_AUTO_TEST_MAIN so that I can capture command line arguments. See the top of the file for the meaning of those arguments. */ #if defined( BOOST_1_31) // code for 1.31 and 1.32 snipped for brevity #elif defined(BOOST_1_33) boost::unit_test::test_suite* init_unit_test_suite( int argc, char* argv[] ) { mspath::gOptions.init(argc, argv); boost::unit_test::auto_unit_test_suite_t* master_test_suite = boost::unit_test::auto_unit_test_suite(); boost::unit_test::auto_unit_test_suite_t* master_test_suite = boost::unit_test::auto_unit_test_suite(); boost::unit_test::const_string new_name = boost::unit_test::const_string( "BOOST_AUTO_TEST_MAIN" ); if( !new_name.is_empty() ) boost::unit_test::assign_op( master_test_suite->p_name.value, new_name, 0 ); master_test_suite->argc = argc; master_test_suite->argv = argv; return master_test_suite; } #else #error I do not know how to setup for this version of boost BOOST_VERSION #endif // etc --------------------------------------------------------------

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Re: [Boost-users] [serialization]Mal-formed XML output
by Merrill Cornish 27 Dec '05

27 Dec '05

Robert, The immediate object being serialized was a shared_ptr and one of the data members being serialized was also a shared_ptr, although it doesn't appear that the process got to the point of serializing that data member. Removing the data member from serialization did nothing. The same faulty output was created. Removing the shared_ptr data member AND replacing the testObj_out shared_ptr with an ordinary pointer produced a different mal-formed XML output: <?xml version="1.0" encoding="UTF-8" standalone="yes" ?> <!DOCTYPE boost_serialization> <boost_serialization signature="serialization::archive" version="3"> <testObj_out class_id="0" tracking_level="1" version="0" object_id="_0"</boost_serialization> By the way, in your reply, you mentioned the missing </px element. However, the original error (and this one too) is more primitive: the initial <px element (or, in this case, the <testObj_out element) have no closing >. Therefore, the serialization process never got past outputting the FULL introductory element. I doubt that the processing ever got to the point of serializing any of the data members. Merrill

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Re: [Boost-users] [serialization]Mal-formed XML output
by Merrill Cornish 27 Dec '05

27 Dec '05

Robert, Here is the relevant code: =========================================== from the header file for the class being serialized... #include "boost/serialization/shared_ptr.hpp" #include "boost/serialization/nvp.hpp" #include "boost/date_time/posix_time/ptime.hpp" #include "boost/date_time/posix_time/time_serialize.hpp" . . . private: friend class boost::serialization::access; template<class Archive> void serialize(Archive& ar, const unsigned int version) { ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(WkFlo::RetractionMixin); ar & BOOST_SERIALIZATION_NVP(mNode); ar & BOOST_SERIALIZATION_NVP(mExportId); ar & BOOST_SERIALIZATION_NVP(mExportStart); }//serialize() where mNode is a shared_ptr<>, mExportedId is a string, and mExportStart is a ptime. =========================================== from the test source file... #include "boost/archive/xml_iarchive.hpp" #include "boost/archive/xml_oarchive.hpp" #include "boost/serialization/shared_ptr.hpp" #include "boost/serialization/nvp.hpp" . . . void ExportedNode_Test::serializationTest() { const char* archiveFile = "temp/Exported_Node_archive.xml"; remove(archiveFile); // remove any file with that name MockNode_ptr BasicNodeObj1(new MockNode(2312)); ExportedNode_ptr testObj_out(new ExportedNode(BasicNodeObj1, "abcd")); { // save data to archive ofstream outStream(archiveFile); boost::archive::xml_oarchive outArchive(outStream); // write class instance to archive try { outArchive << BOOST_SERIALIZATION_NVP(testObj_out); } catch (exception& ex) { cerr << "write: " << ex.what() << endl;} } // archive and stream closed when destructors are called . . . } where the outArchive << is what wrote: <?xml version="1.0" encoding="UTF-8" standalone="yes" ?> <!DOCTYPE boost_serialization> <boost_serialization signature="serialization::archive" version="3"> <testObj_out class_id="0" tracking_level="0" version="1"> <px class_id="1" tracking_level="1" version="0" object_id="_0"</boost_serialization> and threw the exception: "unrecognized XML syntax" Is this enough to go on? Merrill

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[serialization]Mal-formed XML output
by Merrill Cornish 27 Dec '05

27 Dec '05

I've finally gotten serialization for XML archives to compile using Boost 1.33.1. Now I'm trying to execute the test. Unfortunately, the first archive output statement outArchive << BOOST_SERIALIZATION_NVP(testObj_out); triggers an exception saying, "unrecognized XML syntax". The output file looks like <?xml version="1.0" encoding="UTF-8" standalone="yes" ?> <!DOCTYPE boost_serialization> <boost_serialization signature="serialization::archive" version="3"> <testObj_out class_id="0" tracking_level="0" version="1"> <px class_id="1" tracking_level="1" version="0" object_id="_0"</boost_serialization> Note that the closing ">" for the px element is missing, which is probably the reason why there is no newline before </boost_serialization>. The serialize() function for the class object being archived has one ar & for a base class plus three data members. So, it looks like serialization is going awry while string to write the initial class element and never gets to the class contents. By the way, I've never seen the XML root element (<boost_serialization>) with attributes. Is that standard? Any ideas? Merrill

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The boost Tokenizer package: split into a vector of vectors of tokens
by Alex Vinokur 27 Dec '05

27 Dec '05

Can the boost Tokenizer package split a string into into a series of serieses of tokens (a vector of vectors of tokens)? ==================== For instance, string s = "ab cd \nxy z\n123"; vector<vector<string> > v; Output should be as follows: v[0][0] = "ab"; v[0][1] = "cd"; v[1][0] = "xy"; v[1][1] = "z"; v[2][0] = "123"; ==================== http://boost.org/libs/tokenizer/introduc.htm doesn't contain such a sample. Alex Vinokur email: alex DOT vinokur AT gmail DOT com http://mathforum.org/library/view/10978.html http://sourceforge.net/users/alexvn

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Confusion about output_test_stream in the testing tools
by Ross Boylan 27 Dec '05

27 Dec '05

I have a unit test case that includes #include <boost/test/auto_unit_test.hpp> #include <boost/test/floating_point_comparison.hpp> // I will try without the unit test namespace // 1.32 using boost::test_toolbox::ostream_test_stream; using boost::test_toolbox::output_test_stream; output_test_stream ostream; This worked in 1.32 (I think--the comment makes it sound as if it shouldn't). But in 1.33 I get error: `output_test_stream' not declared Turning to the documentation, I couldn't find any mention of this navigating the docs for boost.test (including looking at the detailed release notes). However, when I did a site search I found http://www.boost.org/libs/test/doc/components/test_tools/output_test_stream… That page itself is confusing. the heading is boost::test_tools::ostream_test_stream but the class definition and other material use output_test_stream. The file test/output_test_stream.hpp names the class output test stream. Can anyone clarify what's going on? Either the documentation needs to be tweaked, or I'm confused, or both. Ross

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Boost serialization- looks great, but I'm confused about serializing polymorphic types
by Terence Wilson 24 Dec '05

24 Dec '05

I am an MFC veteran that wants to use a more modern mechanism for archival, in MFC a base pointer can be written and the object recreated automatically upon the read. I've been reading the serialization documentation and I am very confused about what I need to do to make this work using Boost, the code I have so far fails to compile with a static assert in the save function in oserializer.hpp. class CMyClassBase { public: CMyClassBase():m_TagBase(0){} virtual ~CMyClassBase(){} int m_TagBase; friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int /* file_version */) { ar & m_TagBase; } }; class CMyClassDerived : public CMyClassBase { public: CMyClassDerived():m_TagDerived(1){} virtual ~CMyClassDerived(){} int m_TagDerived; friend class boost::serialization::access; template<class Archive> void serialize(Archive & ar, const unsigned int /* file_version */) { boost::serialization::base_object<CMyClassBase>(*this); ar & m_TagDerived; } }; BOOST_CLASS_EXPORT_GUID(CMyClassDerived, "CMyClassDerived") void save_myclass(CMyClassBase* pMyClassBase, const char * filename){ // make an archive std::ofstream ofs(filename); boost::archive::text_oarchive oa(ofs); oa << pMyClassBase; } void restore_myclass(CMyClassBase* pMyClassBase, const char * filename) { // open the archive std::ifstream ifs(filename); boost::archive::text_iarchive ia(ifs); // restore the schedule from the archive ia >> pMyClassBase; }

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Re: [Boost-users] [serialization] Can't compile archive I/O - 2
by Merrill Cornish 24 Dec '05

24 Dec '05

Robert, Thanks. THAT did it. It also explained to me why this had worked before then "suddenly" stopped working. In the intervening time, I had "optimized" my headers and #includes. Somewhere along the way, I got serialization headers before archive headers. Would it be useful to put something like #define BOOST_SERIALIZATION_HEADER_INCLUDED in each serialization header file and #ifdef BOOST_SERIALIZATION_HEADER_INCLUDED #error A Boost serialization header was included BEFORE an Boost archive header. #endif. in each archive header file? In the meantime, thanks for your help, thanks for the promptness of your help, and have warm, safe holidays. Merrill

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Re: [Boost-users] [serialization] Can't compile archive I/O - 2
by Merrill Cornish 24 Dec '05

24 Dec '05

Robert, I just now got home to try adding the two NVP wrappers you suggested. The old problems went away, but there's a new set: Merrill Succ.h=========================================== #include "boost/serialization/nvp.hpp" #include "boost/test/test_tools.hpp" namespace MyNS { class Succ { friend class Succ_Test; private: size_t mInputIndex; bool mIsInbound; friend class boost::serialization::access; template<class Archive> void serialize(Archive& ar, const unsigned int version) { ar & BOOST_SERIALIZATION_NVP(mInputIndex); ar & BOOST_SERIALIZATION_NVP(mIsInbound); }//serialize() public: Succ() {} // needed by serialization Succ(size_t inputIndex, bool isInbound); virtual ~Succ(); size_t inputIndex() const; bool isInbound() const; };//Succ }//MyNS Succ_Test.cc=================================== #include <fstream> #include "Succ.h" #include "boost/archive/xml_iarchive.hpp" #include "boost/archive/xml_oarchive.hpp" #include "boost/test/test_tools.hpp" using namespace std; namespace MyNS { class Succ_Test { public: void run(); };//Succ_Test //============================================================================= void Succ_Test::run() { const char* archiveFile = "temp/Succ_archive.xml"; size_t inputIndex = 65; bool isInbound = true; Succ* testObj_out = new Succ(inputIndex, isInbound); { // save data to archive ofstream outStream(archiveFile); boost::archive::xml_oarchive outArchive(outStream); // write class instance to archive outArchive << BOOST_SERIALIZATION_NVP(testObj_out); } // archive and stream closed when destructors are called Succ* testObj_in;// = new Succ(); { // create and open an archive for input ifstream inStream(archiveFile); boost::archive::xml_iarchive inArchive(inStream); // read class state from archive inArchive >> BOOST_SERIALIZATION_NVP(testObj_in); } // archive and stream closed when destructors are called return; }//run() }//MyNS compile stderr======================================== Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp: In static member function `static void boost::archive::detail::save_pointer_type<Archive, TPtr>::save(Archive&, const T&, const boost::archive::detail::basic_pointer_oserializer*) [with T = MyNS::Succ, Archive = boost::archive::xml_oarchive, TPtr = MyNS::Succ*]': Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:467: instantiated from `static void boost::archive::detail::save_pointer_type<Archive, TPtr>::invoke(Archive&, TPtr) [with Archive = boost::archive::xml_oarchive, TPtr = MyNS::Succ*]' Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:536: instantiated from `void boost::archive::save(Archive&, const T&) [with Archive = boost::archive::xml_oarchive, T = MyNS::Succ*]' Foo/boost-1_33_1/include/boost/archive/basic_xml_oarchive.hpp:99: instantiated from `void boost::archive::basic_xml_oarchive<Archive>::save_override(const boost::serialization::nvp<T>&, int) [with T = MyNS::Succ*, Archive = boost::archive::xml_oarchive]' Foo/boost-1_33_1/include/boost/archive/detail/interface_oarchive.hpp:78: instantiated from `Archive& boost::archive::detail::interface_oarchive<Archive>::operator<<(T&) [with T = const boost::serialization::nvp<MyNS::Succ*>, Archive = boost::archive::xml_oarchive]' Foo/test/src/Succ_Test.cc:48: instantiated from here Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:438: error: invalid use of undefined type `struct boost::serialization::extended_type_info_null<MyNS::Succ>' Foo/boost-1_33_1/include/boost/serialization/type_info_implementation.hpp:26: error: declaration of `struct boost::serialization::extended_type_info_null<MyNS::Succ>' Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:439: error: invalid use of undefined type `struct boost::serialization::extended_type_info_null<MyNS::Succ>' Foo/boost-1_33_1/include/boost/serialization/type_info_implementation.hpp:26: error: declaration of `struct boost::serialization::extended_type_info_null<MyNS::Succ>' Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:439: error: `save' is not a member of `<declaration error>' Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp: In static member function `static T* boost::archive::detail::load_pointer_type<Archive, Tptr>::pointer_tweak(const boost::serialization::extended_type_info&, void*, T&) [with T = MyNS::Succ, Archive = boost::archive::xml_iarchive, Tptr = MyNS::Succ*]': Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:493: instantiated from `static void boost::archive::detail::load_pointer_type<Archive, Tptr>::invoke(Archive&, Tptr&) [with Archive = boost::archive::xml_iarchive, Tptr = MyNS::Succ*]' Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:572: instantiated from `void boost::archive::load(Archive&, T&) [with Archive = boost::archive::xml_iarchive, T = MyNS::Succ*]' Foo/boost-1_33_1/include/boost/archive/basic_xml_iarchive.hpp:80: instantiated from `void boost::archive::basic_xml_iarchive<Archive>::load_override(const boost::serialization::nvp<T>&, int) [with T = MyNS::Succ*, Archive = boost::archive::xml_iarchive]' Foo/boost-1_33_1/include/boost/archive/xml_iarchive.hpp:74: instantiated from `void boost::archive::xml_iarchive_impl<Archive>::load_override(T&, int) [with T = const boost::serialization::nvp<MyNS::Succ*>, Archive = boost::archive::xml_iarchive]' Foo/boost-1_33_1/include/boost/archive/detail/interface_iarchive.hpp:76: instantiated from `Archive& boost::archive::detail::interface_iarchive<Archive>::operator>>(T&) [with T = const boost::serialization::nvp<MyNS::Succ*>, Archive = boost::archive::xml_iarchive]' Foo/test/src/Succ_Test.cc:58: instantiated from here Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:475: error: incomplete type `boost::serialization::extended_type_info_null<MyNS::Succ>' used in nested name specifier Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp: In constructor `boost::archive::detail::pointer_oserializer<T, Archive>::pointer_oserializer() [with T = MyNS::Succ, Archive = boost::archive::xml_oarchive]': Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:198: instantiated from `const boost::archive::detail::pointer_oserializer<MyNS::Succ, boost::archive::xml_oarchive> boost::archive::detail::pointer_oserializer<MyNS::Succ, boost::archive::xml_oarchive>::instance' Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:190: instantiated from `static const boost::archive::detail::pointer_oserializer<T, Archive>& boost::archive::detail::pointer_oserializer<T, Archive>::instantiate() [with T = MyNS::Succ, Archive = boost::archive::xml_oarchive]' Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:515: instantiated from `const boost::archive::detail::basic_pointer_oserializer& boost::archive::detail::instantiate_pointer_oserializer(Archive*, T*) [with Archive = boost::archive::xml_oarchive, T = MyNS::Succ]' Foo/boost-1_33_1/include/boost/archive/detail/interface_oarchive.hpp:58: instantiated from `const boost::archive::detail::basic_pointer_oserializer* boost::archive::detail::interface_oarchive<Archive>::register_type(const T*) [with T = MyNS::Succ, Archive = boost::archive::xml_oarchive]' Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:344: instantiated from `static const boost::archive::detail::basic_pointer_oserializer* boost::archive::detail::save_pointer_type<Archive, TPtr>::non_abstract<T>::register_type(Archive&) [with T = MyNS::Succ, Archive = boost::archive::xml_oarchive, TPtr = MyNS::Succ*]' Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:360: instantiated from `static const boost::archive::detail::basic_pointer_oserializer* boost::archive::detail::save_pointer_type<Archive, TPtr>::register_type(Archive&, T&) [with T = MyNS::Succ, Archive = boost::archive::xml_oarchive, TPtr = MyNS::Succ*]' Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:460: instantiated from `static void boost::archive::detail::save_pointer_type<Archive, TPtr>::invoke(Archive&, TPtr) [with Archive = boost::archive::xml_oarchive, TPtr = MyNS::Succ*]' Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:536: instantiated from `void boost::archive::save(Archive&, const T&) [with Archive = boost::archive::xml_oarchive, T = MyNS::Succ*]' Foo/boost-1_33_1/include/boost/archive/basic_xml_oarchive.hpp:99: instantiated from `void boost::archive::basic_xml_oarchive<Archive>::save_override(const boost::serialization::nvp<T>&, int) [with T = MyNS::Succ*, Archive = boost::archive::xml_oarchive]' Foo/boost-1_33_1/include/boost/archive/detail/interface_oarchive.hpp:78: instantiated from `Archive& boost::archive::detail::interface_oarchive<Archive>::operator<<(T&) [with T = const boost::serialization::nvp<MyNS::Succ*>, Archive = boost::archive::xml_oarchive]' Foo/test/src/Succ_Test.cc:48: instantiated from here Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:233: error: incomplete type `boost::serialization::extended_type_info_null<MyNS::Succ>' used in nested name specifier Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:233: error: incomplete type `boost::serialization::extended_type_info_null<MyNS::Succ>' used in nested name specifier Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp: In constructor `boost::archive::detail::pointer_iserializer<T, Archive>::pointer_iserializer() [with T = MyNS::Succ, Archive = boost::archive::xml_iarchive]': Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:211: instantiated from `const boost::archive::detail::pointer_iserializer<MyNS::Succ, boost::archive::xml_iarchive> boost::archive::detail::pointer_iserializer<MyNS::Succ, boost::archive::xml_iarchive>::instance' Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:203: instantiated from `static const boost::archive::detail::pointer_iserializer<T, Archive>& boost::archive::detail::pointer_iserializer<T, Archive>::instantiate() [with T = MyNS::Succ, Archive = boost::archive::xml_iarchive]' Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:546: instantiated from `const boost::archive::detail::basic_pointer_iserializer& boost::archive::detail::instantiate_pointer_iserializer(Archive*, T*) [with Archive = boost::archive::xml_iarchive, T = MyNS::Succ]' Foo/boost-1_33_1/include/boost/archive/detail/interface_iarchive.hpp:57: instantiated from `const boost::archive::detail::basic_pointer_iserializer* boost::archive::detail::interface_iarchive<Archive>::register_type(T*) [with T = MyNS::Succ, Archive = boost::archive::xml_iarchive]' Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:449: instantiated from `static const boost::archive::detail::basic_pointer_iserializer* boost::archive::detail::load_pointer_type<Archive, Tptr>::non_abstract<T>::register_type(Archive&) [with T = MyNS::Succ, Archive = boost::archive::xml_iarchive, Tptr = MyNS::Succ*]' Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:465: instantiated from `static const boost::archive::detail::basic_pointer_iserializer* boost::archive::detail::load_pointer_type<Archive, Tptr>::register_type(Archive&, T&) [with T = MyNS::Succ, Archive = boost::archive::xml_iarchive, Tptr = MyNS::Succ*]' Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:485: instantiated from `static void boost::archive::detail::load_pointer_type<Archive, Tptr>::invoke(Archive&, Tptr&) [with Archive = boost::archive::xml_iarchive, Tptr = MyNS::Succ*]' Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:572: instantiated from `void boost::archive::load(Archive&, T&) [with Archive = boost::archive::xml_iarchive, T = MyNS::Succ*]' Foo/boost-1_33_1/include/boost/archive/basic_xml_iarchive.hpp:80: instantiated from `void boost::archive::basic_xml_iarchive<Archive>::load_override(const boost::serialization::nvp<T>&, int) [with T = MyNS::Succ*, Archive = boost::archive::xml_iarchive]' Foo/boost-1_33_1/include/boost/archive/xml_iarchive.hpp:74: instantiated from `void boost::archive::xml_iarchive_impl<Archive>::load_override(T&, int) [with T = const boost::serialization::nvp<MyNS::Succ*>, Archive = boost::archive::xml_iarchive]' Foo/boost-1_33_1/include/boost/archive/detail/interface_iarchive.hpp:76: instantiated from `Archive& boost::archive::detail::interface_iarchive<Archive>::operator>>(T&) [with T = const boost::serialization::nvp<MyNS::Succ*>, Archive = boost::archive::xml_iarchive]' Foo/test/src/Succ_Test.cc:58: instantiated from here Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:339: error: incomplete type `boost::serialization::extended_type_info_null<MyNS::Succ>' used in nested name specifier Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:339: error: incomplete type `boost::serialization::extended_type_info_null<MyNS::Succ>' used in nested name specifier Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp: In constructor `boost::archive::detail::oserializer<Archive, T>::oserializer() [with Archive = boost::archive::xml_oarchive, T = MyNS::Succ]': Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:135: instantiated from `static boost::archive::detail::oserializer<Archive, T>& boost::archive::detail::oserializer<Archive, T>::instantiate() [with Archive = boost::archive::xml_oarchive, T = MyNS::Succ]' Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:235: instantiated from `boost::archive::detail::pointer_oserializer<T, Archive>::pointer_oserializer() [with T = MyNS::Succ, Archive = boost::archive::xml_oarchive]' Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:198: instantiated from `const boost::archive::detail::pointer_oserializer<MyNS::Succ, boost::archive::xml_oarchive> boost::archive::detail::pointer_oserializer<MyNS::Succ, boost::archive::xml_oarchive>::instance' Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:190: instantiated from `static const boost::archive::detail::pointer_oserializer<T, Archive>& boost::archive::detail::pointer_oserializer<T, Archive>::instantiate() [with T = MyNS::Succ, Archive = boost::archive::xml_oarchive]' Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:515: instantiated from `const boost::archive::detail::basic_pointer_oserializer& boost::archive::detail::instantiate_pointer_oserializer(Archive*, T*) [with Archive = boost::archive::xml_oarchive, T = MyNS::Succ]' Foo/boost-1_33_1/include/boost/archive/detail/interface_oarchive.hpp:58: instantiated from `const boost::archive::detail::basic_pointer_oserializer* boost::archive::detail::interface_oarchive<Archive>::register_type(const T*) [with T = MyNS::Succ, Archive = boost::archive::xml_oarchive]' Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:344: instantiated from `static const boost::archive::detail::basic_pointer_oserializer* boost::archive::detail::save_pointer_type<Archive, TPtr>::non_abstract<T>::register_type(Archive&) [with T = MyNS::Succ, Archive = boost::archive::xml_oarchive, TPtr = MyNS::Succ*]' Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:360: instantiated from `static const boost::archive::detail::basic_pointer_oserializer* boost::archive::detail::save_pointer_type<Archive, TPtr>::register_type(Archive&, T&) [with T = MyNS::Succ, Archive = boost::archive::xml_oarchive, TPtr = MyNS::Succ*]' Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:460: instantiated from `static void boost::archive::detail::save_pointer_type<Archive, TPtr>::invoke(Archive&, TPtr) [with Archive = boost::archive::xml_oarchive, TPtr = MyNS::Succ*]' Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:536: instantiated from `void boost::archive::save(Archive&, const T&) [with Archive = boost::archive::xml_oarchive, T = MyNS::Succ*]' Foo/boost-1_33_1/include/boost/archive/basic_xml_oarchive.hpp:99: instantiated from `void boost::archive::basic_xml_oarchive<Archive>::save_override(const boost::serialization::nvp<T>&, int) [with T = MyNS::Succ*, Archive = boost::archive::xml_oarchive]' Foo/boost-1_33_1/include/boost/archive/detail/interface_oarchive.hpp:78: instantiated from `Archive& boost::archive::detail::interface_oarchive<Archive>::operator<<(T&) [with T = const boost::serialization::nvp<MyNS::Succ*>, Archive = boost::archive::xml_oarchive]' Foo/test/src/Succ_Test.cc:48: instantiated from here Foo/boost-1_33_1/include/boost/archive/detail/oserializer.hpp:108: error: incomplete type `boost::serialization::extended_type_info_null<MyNS::Succ>' used in nested name specifier Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp: In constructor `boost::archive::detail::iserializer<Archive, T>::iserializer() [with Archive = boost::archive::xml_iarchive, T = MyNS::Succ]': Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:146: instantiated from `static boost::archive::detail::iserializer<Archive, T>& boost::archive::detail::iserializer<Archive, T>::instantiate() [with Archive = boost::archive::xml_iarchive, T = MyNS::Succ]' Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:340: instantiated from `boost::archive::detail::pointer_iserializer<T, Archive>::pointer_iserializer() [with T = MyNS::Succ, Archive = boost::archive::xml_iarchive]' Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:211: instantiated from `const boost::archive::detail::pointer_iserializer<MyNS::Succ, boost::archive::xml_iarchive> boost::archive::detail::pointer_iserializer<MyNS::Succ, boost::archive::xml_iarchive>::instance' Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:203: instantiated from `static const boost::archive::detail::pointer_iserializer<T, Archive>& boost::archive::detail::pointer_iserializer<T, Archive>::instantiate() [with T = MyNS::Succ, Archive = boost::archive::xml_iarchive]' Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:546: instantiated from `const boost::archive::detail::basic_pointer_iserializer& boost::archive::detail::instantiate_pointer_iserializer(Archive*, T*) [with Archive = boost::archive::xml_iarchive, T = MyNS::Succ]' Foo/boost-1_33_1/include/boost/archive/detail/interface_iarchive.hpp:57: instantiated from `const boost::archive::detail::basic_pointer_iserializer* boost::archive::detail::interface_iarchive<Archive>::register_type(T*) [with T = MyNS::Succ, Archive = boost::archive::xml_iarchive]' Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:449: instantiated from `static const boost::archive::detail::basic_pointer_iserializer* boost::archive::detail::load_pointer_type<Archive, Tptr>::non_abstract<T>::register_type(Archive&) [with T = MyNS::Succ, Archive = boost::archive::xml_iarchive, Tptr = MyNS::Succ*]' Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:465: instantiated from `static const boost::archive::detail::basic_pointer_iserializer* boost::archive::detail::load_pointer_type<Archive, Tptr>::register_type(Archive&, T&) [with T = MyNS::Succ, Archive = boost::archive::xml_iarchive, Tptr = MyNS::Succ*]' Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:485: instantiated from `static void boost::archive::detail::load_pointer_type<Archive, Tptr>::invoke(Archive&, Tptr&) [with Archive = boost::archive::xml_iarchive, Tptr = MyNS::Succ*]' Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:572: instantiated from `void boost::archive::load(Archive&, T&) [with Archive = boost::archive::xml_iarchive, T = MyNS::Succ*]' Foo/boost-1_33_1/include/boost/archive/basic_xml_iarchive.hpp:80: instantiated from `void boost::archive::basic_xml_iarchive<Archive>::load_override(const boost::serialization::nvp<T>&, int) [with T = MyNS::Succ*, Archive = boost::archive::xml_iarchive]' Foo/boost-1_33_1/include/boost/archive/xml_iarchive.hpp:74: instantiated from `void boost::archive::xml_iarchive_impl<Archive>::load_override(T&, int) [with T = const boost::serialization::nvp<MyNS::Succ*>, Archive = boost::archive::xml_iarchive]' Foo/boost-1_33_1/include/boost/archive/detail/interface_iarchive.hpp:76: instantiated from `Archive& boost::archive::detail::interface_iarchive<Archive>::operator>>(T&) [with T = const boost::serialization::nvp<MyNS::Succ*>, Archive = boost::archive::xml_iarchive]' Foo/test/src/Succ_Test.cc:58: instantiated from here Foo/boost-1_33_1/include/boost/archive/detail/iserializer.hpp:115: error: incomplete type `boost::serialization::extended_type_info_null<MyNS::Succ>' used in nested name specifier make: *** [test/obj/Succ_Test.o] Error 1 //========================================================

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boost::filesystem question: iterate upcast directory path string?
by David Xiao 23 Dec '05

23 Dec '05

Hi Friends: For example I have path "C:\Temp\abcd\hello\", I wish to iterate to get C: , C:\Temp , C:\Temp\abcd , C:\Temp\abcd\hello . I have read code of path::iterator, but not what I expected.... How to do it? I also want to have the code portable for UNIX paths, means also work for "/foo/bar1/bar2/bar3/" ... Thanks for your help! Rgds, David

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