[Boost-users] Error: final keyword using boost serialization

Subject: [Boost-users] Error: final keyword using boost serialization
From: Dr. Sören Textor (s.textor_at_[hidden])
Date: 2018-11-05 06:11:34

Hello We have a little problem with the boost serialization. It's seems 
to have problem with the final keyword (at least in boost v1.55). Is 
there any workaround for the example oder got it fixed already in the 
newest boost version? class  Test  final
{
public:
    Test()Â {}
Test(time_t  t1)Â :m_t(t1)Â {}
  
protected:
    friend  class  boost::serialization::access;
    template<class  Archive>
    void  serialize(Archive  &ar,const  unsigned  int  version  ) {
       ar  &m_t;
    }
  
    time_t  m_t  = 12;
};

int  main(int  argc  ,char**argv  ){
Test t1(45); std::stringstream  ofs;
boost::archive::binary_oarchive  oa(ofs  );
oa  &t1;
}

  
--> compile error: is_polymorphic.hpp(46) : error C3246: 
'boost::detail::is_polymorphic_imp1<T>::d2' : cannot inherit from 'Test' 
as it has been declared as 'final' remarks: - the original class is a 
non polymorphic POD class that is declared a final. Like in th eexample! 
Best regards SirAnn