Re:[boost] serialization: buffers

From: Robert Ramey (ramey_at_[hidden])
Date: 2004-09-28 10:15:44

>I've a class like this:

>class Example{
>int str[BSize];
>int *p;
>};

>Where p points to next available element (p==str+BSize is possible when it 
>is full). I.e. str is like begin() and p is like end(). I want to add a 
>serialize() function, something like this:

>template<class Archive> void serialize(Archive &ar,const unsigned int){
>ar & BOOST_SERIALIZATION_NVP(buf,p);
>}

>but there seems to be no support for buffers like this?

Of course the following would work:

ar & BOOST_SERIALIZATION_NVP(buf,str);

but it would copy too many elements.

Or you might try the following (non-portable) idea

        ar & BOOST_SERIALIZATION_NVP(buf,
                make_binary_object((p - str)* sizeof(int), str)
        );

But really, I think you might be best off replacing the class above with

class Example {
        std::slist<int> str; // or maybe std::vector<int> str }

For which serialization is already implemented.

Robert Ramey