Re: [Boost-users] Serialization of boost::shared_ptr - wrong ref. count?

Hi Robert, Thank you for checking it. I tried your modification and it does the same thing on my computer. Still use count two. It is really very strange. If you say that you are running the latest version of the serialization library, do you mean the one from boost 1.57 or already 1.58? Cheers, Josef

On 14 Apr 2015, at 06:21, Robert Ramey wrote:

I ran a modified version of this program on my Mac OS system and it worked as I would expect. I'm running the latest version of the serialization library

Robert Ramey

my version:

//#include //#include #include <fstream> #include "test_tools.hpp" #include #include #include #include

class SOBJ { public: friend class boost::serialization::access; virtual void SerializationHelperFcn() {} SOBJ() { std::cout << "SOBJ Constructor" << std::endl; }

virtual ~SOBJ() { std::cout << "SOBJ Destructor" << std::endl; } double value=0.; template<typename Archive> void serialize(Archive &ar, const unsigned int ver) { ar & boost::serialization::make_nvp("value", value); } };

void shared_ptr_serialization_test() { const char * testfile = boost::archive::tmpnam(NULL); boost::shared_ptr<SOBJ> out=boost::make_shared<SOBJ>();

{ //boost::iostreams::filtering_ostream ofs;

//ofs.push(boost::iostreams::file_descriptor_sink("/Users/juhe/stest.xml")); std::ofstream ofs(testfile); boost::archive::xml_oarchive oa(ofs); oa << boost::serialization::make_nvp("tag", out); }

boost::shared_ptr<SOBJ> in=nullptr;

{ // boost::iostreams::filtering_istream ifs; // ifs.push(boost::iostreams::file_descriptor_source("/Users/juhe/stest.xml")); std::ifstream ifs(testfile); boost::archive::xml_iarchive ia(ifs); ia >> boost::serialization::make_nvp("tag", in); }

std::cout << "out.use_count()=" << out.use_count() << std::endl; std::cout << "in.use_count() =" << in.use_count() << std::endl; }

int test_main(int argc, char * argv[]){ shared_ptr_serialization_test(); return 0; } /raw>

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