Re: [Boost-users] Serialize abstract base class

4 Nov 2011

      Fabian Weiss wrote:
...
If I do not register base classe <Modul>, nor in serializing code nor
in deserializing code:
It compliles and serializing runs and creates perfect archive.
But when I try to deserialize the archive I get a runtime error:
Note that the serialization and de-serialization code should be identical.
That is,

a) if you register on saving you have to do so on loading.
b) if you save as a pointer to Module, you have to load as a pointer to 
Module
c) if you save as a pointer to DerivedModule, you have to load as a pointer 
to DerivedModule.
... etc...

Double check this.
...
terminate called after throwing an instance of
'boost::archive::archive_exception'
 what():  stream error
How do I de/serialize: I created a class and use a vector of base
class pointers:
class LogElement
{
 public:
   LogElement();
   virtual ~LogElement(){};
std::vector Module;
private:
   friend class boost::serialization::access;
template <typename Archive>
   void serialize(Archive &ar, const unsigned int version)
   {
     ar & boost::serialization::make_nvp("Module", Module);
   };
};
In Module are pointers to objects of derived classes. Is it a problem?
Am 03.11.2011 06:09, schrieb Robert Ramey:
...
Fabian Weiss wrote:
...
How can I serialize my abstract base class?
you should only need to register the derived classes.
Robert Ramey
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