Hi,
I’m trying to serialize an object
of derived class with a base class pointer, somehow only base class’s
serialization member function got called. Here is the code
(simplified):
class
CMyCls1
{
public:
CMyCls1() : m(10) {}
~CMyCls1() {}
private:
friend class
boost::serialization::access;
template<class
Archive>
void serialize(Archive
&ar, const unsigned int
version)
{
ar & BOOST_SERIALIZATION_NVP(m);
}
int
m;
virtual ~CMyCls1() = 0;
};
class CMyCls2 : public
CMyCls1
{
public:
CMyCls2() : x(1.5) {}
~CMyCls2() {}
private:
friend class
boost::serialization::access;
template<class
Archive>
void serialize(Archive
&ar, const unsigned int
version)
{
ar &
BOOST_SERIALIZATION_BASE_OBJECT_NVP(CMyCls1);
ar & BOOST_SERIALIZATION_NVP(x);
}
double
x;
virtual ~CMyCls2();
};
void main
()
{
CMyCls1 *pmycls = new CMyCls2;
…
oa.register_type(static_cast<CMyCls1
*>(NULL));
oa.register_type(static_cast<CMyCls2
*>(NULL));
oa << BOOST_SERIALIZATION_NVP(pmycls);
…
}
Look at the archive file, only
base class data is serialized. Actuall, CMyCls2::serialization() is not called
at all. How do you serialize a derived class object with a pointer of base
class?
Thanks,
Yan