Re: [Boost-users] boost serialization 1.32

7 Jul 2005

      Note that native binary archives are not guarenteed portable across
environments.  text and xml archives should be. Also note that there is demo
of a portable binary archive (it doesn't handle floats) included with the
package.

On the other hand, I would expect gcc 3.3 and visual studio 7.1 to produce
binary archives which inter-operate - assuming they are both for x86
machines.  It would be interesting to know where the difference comes from.

Robert Ramey

luke wrote:
...
Dear list
I try to read back a serialized structure (binary).
It works fine with gcc 3.3 on linux but I get problems
with visualstudio 7.1. reading back the file.
...
wrong input data
uncaught exception at: ar >> new_strucutre;
Are there some hints/ experiences with Visualstudio ??
Below I have a short code abstraction what I'm doing basically.
Thanks
  luke
==== snip ====
struct foo
  {
    int posx;
    int posz;
friend class boost::serialization::access;
    template<class Archive>
     void serialize(Archive & ar, const unsigned int version)
     {
       ar & posx;
       ar & posz;
     }
  };
class Manager
  {
    public:
     Manager();
     ~Manager();
std::vector<foo> fool_;
friend class boost::serialization::access;
    template<class Archive>
     void serialize(Archive & ar, const unsigned int version)
     {
       ar & fool_;
     }
private:
};
struct test
  {
    int id;
    int age;
    Manager manager;
friend class boost::serialization::access;
    template<class Archive>
     void serialize(Archive & ar, const unsigned int version)
     {
       ar & id;
       ar & age;
       ar & manager;
     }
};
int main()
  {
    //CREATE
    test test_foo;
    test_foo.id = 1;
    test_foo.age = 2;
    foo new_foo;
    new_foo.posx = 100;
    new_foo.posz = 110;
    test_foo.manager.fool_.push_back(new_foo);
//WRITE
    std::ofstream ofsb("filenameb");
    boost::archive::binary_oarchive ob(ofsb);
    ob << test_foo;
    ofsb.close();
//READBACK
    std::ifstream ifs(fname.c_str(), std::ios::binary);
    boost::archive::text_iarchive ia(ifs);
ia >> new_test;  // EXCEPTION
ifs.close();
}
==============