[boost] [Serialization] Compilation error for private & protected derived classes

From: John Reid (john.reid_at_[hidden])
Date: 2006-02-16 10:27:41

Hi,

The following will not compile although if the inheritance is public there are no problems. The documentation implies that it should work. I cannot find a friend function declaration to put in Derived that will make MSVC8 happy. I am using boost 1_33_1.

Oleg Abrosimov already reported this:
http://lists.boost.org/Archives/boost/2005/12/98305.php

Any feedback appreciated,
John Reid

#include <boost/archive/text_oarchive.hpp>
#include <list>
#include <fstream>

typedef std::list< int > base_t;

struct Derived :
        private base_t                              //*** change to public to compile ***
{
        friend class boost::serialization::access;
        template<class Archive>
        void serialize(Archive &ar, const unsigned int version)
        {
                // save/load base class information
                ar & boost::serialization::base_object< base_t >(*this);
        }
};

void save(Derived const & derived, const char * const filename)
{
     std::ofstream ofs(filename);
     boost::archive::text_oarchive oa(ofs);
     oa << derived;
}

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