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Subject: Re: [Boost-users] BoostSerialization callinga customserialize method
From: Jeff Flinn (TriumphSprint2000_at_[hidden])
Date: 2010-08-27 15:23:59

Pooyan Dadvand wrote:

>> So how about one of the following?
>> struct extradata {
>> ...
>> };
>> std::pair<VariableData, extradata> m_x
>> std::pair<VariableData &, extradata&> m_x
>> std::pair<VariableData *, extradata*> m_x
>> std::pair<VariableData*, extradata &> m_x
>> ...
>> ar << m_x;
> Can you please explain me more the idea of extradata structure? Consider
> that my extradata can be a double, ublas::vector, or even
> std::vector<weak_ptr<Element> > or any new type of variables. I have:
> std::vector<std::pair<VariableData, extradata> > mData
> ...
> ar << mData;
> and each element of vector can have a different type of data with
> different size or even have pointers. (It's a heterogeneous container)
> In this situation I don't know how to implement the extradata structure
> without knowing the type of variable I'm storing in it.

You must have some means to determine what that void* is pointing to
when you access is from elsewhere in your application. I think Robert is
suggesting that you implement extradata(and it's derivative)'s serialize
method using that same scheme.


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