C++

Forum

 
Boost serialization. unregistered_class exception.

user08 (1)
I need to use boost serialization to serialize some structures.
This code does not work the unregistered_class exception happens.

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
 
#include <sstream>
#include <boost/shared_ptr.hpp>
#include <boost/archive/binary_oarchive.hpp>
#include <boost/archive/binary_iarchive.hpp>
#include <boost/serialization/shared_ptr.hpp>

struct I1
{
    I1() {}
    virtual ~I1() = 0 {}

    template<class Archive>
    void serialize(Archive &ar, const unsigned int version)
    {
    }
};
BOOST_SERIALIZATION_ASSUME_ABSTRACT(I1)

struct C1 : I1
{
    virtual ~C1() {}

    template<class Archive>
    void serialize(Archive &ar, const unsigned int version)
    {
        ar & boost::serialization::base_object<I1>(*this);
    }
};

struct I2
{
    virtual ~I2() = 0 {}

    template<class Archive>
    void serialize(Archive &ar, const unsigned int version)
    {
        ar & p;
    }

    boost::shared_ptr<I1> p;
};
BOOST_SERIALIZATION_ASSUME_ABSTRACT(I2)

struct C2 : I2
{
    C2() { p = boost::shared_ptr<I1>(new C1); }
    virtual ~C2() {}

    template<class Archive>
    void serialize(Archive &ar, const unsigned int version)
    {
        ar & boost::serialization::base_object<I2>(*this);
    }
};

int main()
{
    C2 c2;

    std::string s;
    std::stringstream ss(s);

    boost::archive::binary_oarchive oa(ss);
    oa.register_type<I1>();
    oa.register_type<C1>();
    oa.register_type<I2>();
    oa.register_type<C2>();
    
    oa << c2;
    ss.flush();

    boost::archive::binary_iarchive ia(ss);
    //ia.register_type<I1>(); // cannot instantiate abstract class
    ia.register_type<C1>();
    //ia.register_type<I2>(); // cannot instantiate abstract class
    ia.register_type<C2>();

    ia >> c2;
}


Call stack: http://pastebin.com/wU7ARa4F
Compiler: MSVC12.
Boost 1.57.
Last edited on
Topic archived. No new replies allowed.