One can't invoke any function of the derived class through a base class pointer unless the base class is polymorphic - that is has at least one virtual function. Serialization is no different in this regard. I would not expect the behavior of the program below to change between version. The error message is the same as those failures in test_export but the cause isn't necessarily the same. I would be curious of the version 1.36 serialization library at rrsd.com would pass tests with gcc 4.1 and higher. Robert Ramey Boris Gubenko wrote:

x.cpp below reproduces failures of test_exported* tests on several platforms using gcc 4.1 and higher. The tests fail with:

terminate called after throwing an instance of 'boost::archive::archive_exception' what(): unregistered void cast

When compiled with macro WORKS defined, i.e. when destructor of the base class is removed, reproducer succeeds. Does it give any clue?

Thanks, Boris

x.cpp ----- #include <fstream> #include <boost/archive/binary_oarchive.hpp>

struct polymorphic_base { template<class Archive> void serialize(Archive&, const unsigned int) {} #ifndef WORKS virtual ~polymorphic_base(){} #endif };

struct polymorphic_derived : polymorphic_base { template<class Archive> void serialize(Archive&, const unsigned int) {} };

int main() { std::ofstream os("x.x"); boost::archive::binary_oarchive oa(os); polymorphic_base *rb = new polymorphic_derived; oa << BOOST_SERIALIZATION_NVP(rb); }

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