[Boost-users] [serialization] Sending user data to serialize()?

Subject: [Boost-users] [serialization] Sending user data to serialize()?
From: Robert Dailey (rcdailey_at_[hidden])
Date: 2009-02-03 10:30:52

Hi,

I have a complex case I'm trying to work with. I may be doing this
completely wrong so if there is a better design for this I'm always open for
that. However for now I'm going to assume my particular problem can be
solved.

There exists two classes: A and B. Class A is defined as such:

class A
{
public:
    template< typename Archive >
    void load( Archive& archive, unsigned int )
    {
        archive & m_listOfB;
    }

private:
    std::vector<int> m_listOfInt;
    boost::ptr_vector<B> m_listOfB;
};

And class B is defined roughly as:

class B
{
public:
    template< typename Archive >
    void load( Archive& archive, unsigned int )
    {
        // Code isn't important here
    }
};

Here's the problem:

For each B that is deserialized by A::load(), I need to pass in a reference
to m_listOfInt. So, essentially the load() function in B would look
something like this:

void load( Archive& archive, unsigned int, std::vector<int>& listOfInt )
{
}

I was hoping boost.bind could be used somewhere, but I just don't see how.
One way to solve the problem is to call B::load() explicitly with the extra
parameter, but I don't think that's an appropriate solution. Any ideas on
how to solve this? Or perhaps I'm trying to solve the wrong problem.