[Boost-users] splitting non intrusive serialization into save/load

Subject: [Boost-users] splitting non intrusive serialization into save/load
From: Babineau, Denis (Denis.Babineau_at_[hidden])
Date: 2010-06-04 11:26:50

Hi

I'm trying to serialize a class using non intrusive templates since I can't modify the class. The class has proper set/gets but doesn't expose the data directly so I would need to use the save/load method which requires a macro to be defined in the class but, again, I can't modify the class. Looking at the code, I tried the following to have the save/load implemented outside but get the following error with MSVC 7.1 (boost version 1.39). Is there any way to accomplish what I'm trying to do here? Thanks

Denis

error C2270: 'save' : modifiers not allowed on nonmember functions

sample implementation:

class MyClass
{
public : int GetValue() const;
public : void SetValue(int v);
private: int m_Value;
};

...

namespace boost { namespace serialization {
                template <class Archive>
                void save(Archive & ar, MyClass & c, const unsigned int version) const
                {
                                int v = c.GetValue();
                                ar & v;
                }

                template <class Archive>
                void load(Archive & ar, MyClass & c, const unsigned int version)
                {
                                int v;
                                ar & v;
                                c.SetValue(v);
                }

                template <class Archive>
                void serialize(Archive & ar, MyClass & c, const unsigned int version)
                {
                                boost::serialization::split_member(ar, c, version);
                }
}}

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