id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
1942	Pointers to elements in a std::map are not serilaized correctly	bernhard.maeder@…	Robert Ramey	"When serializing a std::map and some pointers that are referencing onto elements of that map, those pointers are not loaded correctly. 

Here's the code:

{{{

#include <sstream>
#include <boost/archive/text_oarchive.hpp>
#include <boost/archive/text_iarchive.hpp>
#include <boost/serialization/map.hpp>

struct dummy 
{
    template<typename Archive> 
    void serialize(Archive & ar, const unsigned int version)
    {        
    }  
};

struct map_ref_test
{
    std::map<std::size_t, dummy> m;    
    dummy * ref;

    template<typename Archive>
    void serialize(Archive & ar, const unsigned int version)
    {
        ar & m;
        ar & ref;
    }      
};

int main()
{
    std::ostringstream os;

    map_ref_test m;
    m.m[0] = dummy();
    m.m[1] = dummy();
    m.m[2] = dummy();
    m.ref = &(m.m[1]);

    // serialize
    boost::archive::text_oarchive out(os);        
    out << const_cast<map_ref_test const &>(m);

    // De-serialize
    map_ref_test m2; 
    std::string ser = os.str();
    std::istringstream is(ser);
    boost::archive::text_iarchive in(is);   

    in >> m2;

    std::cout << ""0:   "" << &m.m[0] << std::endl;
    std::cout << ""1:   "" << &m.m[1] << std::endl;
    std::cout << ""2:   "" << &m.m[2] << std::endl;
    std::cout << ""ref: "" << m.ref << std::endl << std::endl;

    std::cout << ""0:   "" << &m2.m[0] << std::endl;
    std::cout << ""1:   "" << &m2.m[1] << std::endl;
    std::cout << ""2:   "" << &m2.m[2] << std::endl;
    std::cout << ""ref: "" << m2.ref << std::endl;     
}

}}}

This creates the following output:


{{{
0:   0x805bfc4
1:   0x805bfe4
2:   0x805c004
ref: 0x805bfe4

0:   0x805ca04
1:   0x805ca24
2:   0x805ca44
ref: 0xbfacad5c
}}}


I'd expect the last line to read:


{{{
ref: 0x805ca24
}}}


The code works for std::vectors, so I'd assume it should work for maps also."	Bugs	closed	To Be Determined	serialization	Boost 1.35.0	Problem	wontfix