Hi,

I’m trying to use the boost serialization in our project “Kratos” (a Multi-physics finite element code) in which I found the following problem, I have a class Variable which is derived from VariableData as follow:

Class VariableData

{

                std::size_t mKey;

public:

.....

};

template<class TDataType>

class Variable : public VariableData

{

....

}

Now I have a container which holds a pairs, consist of VariableData pointer to the Variable and a void* pointer to its value:

std::vector<std::pair<const VariableData*, void*> >

which I want to serialize but as it can be seen I don’t have the pointer to data in my variable and I might need to implement a costumized version of Serialized with void* pValue as an additional parameter for VariableData and Variable classes:

template<class TArchiveType>

Variable::serialize(TArchiveType &rArchive, const unsigned int Version, void* pValue)

{

                rArchive & static_cast<TDataType>(pVAlue);

}

 The problem here is the template definition of this method which make it impossible to be virtual. I note that the library uses get_extended_type_info for this porposed. But I don’t know how is its correct way of use. Can anybody give me a hint about how I can handle this problem?

Just to add some restriction:

- I don’t want to add a hierarchy of handlers instead of pair because it adds another pointer jump to the container and reduce its performance in normal use of it

- I don’t want to add a version of non template members for each archive type while it makes a lot of duplications and makes extra dependency to the archive types in a layer of code which is not expected to have this dependency

Thanks,

Pooyan.

_______________________________________________________________________________________________________________________________________________________________________________

Dr. Pooyan Dadvand

Member of Kratos team

International Center for Numerical Methods in Engineering - CIMNE
Campus Norte, Edificio C1

c/ Gran Capitán s/n

08034 Barcelona, España

Tel:        (+34) 93 401 56 96

Fax:       (+34) 93.401.65 17

web:       www.cimne.com

www.cimne.com/kratos/

_______________________________________________________________________________________________________________________________________________________________________________

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