Dear Robert
Thank you for answering.
I am sorry I was not very specific (though please don't think I would put the
question without RTFM first ;) )
The part of documentation you pointed to told me to do const_cast manually. It is fine
in case of const members of a class, but this time the const type is contained by a vector.
I could manually write the serialization code for my vector type but I hoped I
could use the built-in vector serialization templates in vector.hpp
To be clear I copy here the piece of code I am talking about
#include <fstream>
#include
#include
#include
using namespace std;
class A
{
friend class boost::serialization::access;
template<class Archive>
void serialize (Archive &ar, const unsigned int version)
{
}
};
/* NEITHER OF THESE HELPS
namespace boost { namespace serialization {
template <class Archive>
inline void serialize (Archive &ar, const A *p, const unsigned int version)
{
ar & const_cast(p);
}
template <class Archive>
inline void serialize (Archive &ar, const A &p, const unsigned int version)
{
ar & const_cast(p);
}
}}
*/
int main()
{
A a;
vector v(1, &a);
ofstream ofs ("vectorofconstptr");
boost::archive::text_oarchive oa(ofs);
oa << v;
ofs.close();
// UNTIL THIS POINT EVERYTHING IS FINE
// BUT DESERIALIZATION FAILS TO COMPILE
ifstream ifs("vectorofconstptr");
boost::archive::text_iarchive ia(ifs);
vector p;
ia >> p;
ifs.close();
}
Please tell me if I am doing something wrong. I tried to look into the documentation, I have
even followed the serialization library code for a while, but eventually decided to ask.
Thank you in advance
Zoltan
Look in the documentation under Reference/Class Serialization/const members
Robert Ramey
Zoltan Szatmary wrote:
Hello
could you help please? what is the easiest way to (de)serialize a
member of type vector (A being a base class)? Serializing
is fine, but deserialization fails to compile since the vector
deserialization code tries to deserialize a const A* pointer without
const_cast-ing it (I guess).
Thank you in advance
Zoltan
