Re: [Boost-users] Deriving Serialization classes

15 Jan 2007

      Hi Miguel,

you can find what you seek in the documentation under Reference, Serializable Concept, Pointers, Pointers to Objects of Derived Classes.

Two possibilities:
* eiter call ar.register_class<A>()
* or use the macro BOOST_CLASS_EXPORT(A)

Have fun,

Christian Pfligersdorffer
Software Engineering EOS GmbH
...
-----Ursprüngliche Nachricht-----
Von: boost-users-bounces@lists.boost.org
[mailto:boost-users-bounces@lists.boost.org]Im Auftrag von Miguel
Silvestre
Gesendet: Montag, 15. Januar 2007 16:30
An: boost-users@lists.boost.org
Betreff: Re: [Boost-users] Deriving Serialization classes
Anyone???
In the boost code I found this comment:
// note:if this exception is thrown, be sure that derived pointer
   // is either regsitered or exported.
How can I register a class????????
...
Just make the test without a pointer ant it works just fine.
I've looked at the documentation and it only refers to this
On 1/15/07, Miguel Silvestre  wrote:
problem on
...
derivated classes! But I'm not deriving any class. I'm just 
including
the ponter of a class :(
On 1/15/07, Miguel Silvestre  wrote:
...
Ok!!!
Now I'm getting unregistered_class exceptions when trying 
to seryalize
a class that has another class. Like:
class C : public Serializer
{
        typedef Serializer Parent;
public:
        std::string text;
        A* m_owner;
        int32 dasse;
        C():m_owner(0)
        {
                text = "Ola sua puta rabeta!";
                dasse = 69;
        }
void Serialize(IArchive& ar, const unsigned int version)
        {
                ar.Serialize(dasse);
                ar.Serialize(text);
                //ar.Serialize(m_owner);
        }
};
class A : public Serializer
{
        typedef Serializer Parent;
public:
void Serialize(IArchive& ar, const unsigned int version)
        {
                ar.Serialize(dumbi);
                ar.Serialize(vectorTest);
                ar.Serialize(matrix);
                ar.Serialize(testing);
                ar.Serialize((void*)test_void, sizeof(Vector3f));
        }
int dumbi;
        float dumbf;
        Vector2f vectorTest;
        Matrix33 matrix;
        C* testing;
        Vector3f* test_void;
A():dumbi(12), dumbf(69.69f)
        {
                testing = new C();
                testing->m_owner = this;
                matrix.SetIdentity();
                test_void = new Vector3f(1,2,3);
        }
A(int dumb1, float dumb2) : dumbi(dumb1), dumbf(dumb2)
        {
                testing = new C();
                testing->m_owner = this;
                matrix.SetIdentity();
                test_void = new Vector3f(1,2,3);
        }
};
If I comment the line that serializes C object from A
(ar.Serialize(testing);) everything works fine.
I can serialize Object A. And I can serialiaze the Object 
C to. But
when I have apoibter to C on object A It throws the 
unregistered_class
exception?
Why?
How can I avoid this???
On 1/12/07, Robert Ramey  wrote:
...
Use binary_object.
Robert Ramey
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Miguel Silvestre
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Miguel Silvestre
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Miguel Silvestre
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Re: [Boost-users] Deriving Serialization classes

Pfligersdorffer, Christian