Re: [Boost-users] Serializationwithpolymorphic_*_archiveandBOOST_CLASS_EXPORT

From: Anders Wang Kristensen (awk_at_[hidden])
Date: 2006-11-07 12:52:47

Didn't help.. same error.

I guess I'll switch to the templated version then.

The reason I preferred the non-template version was that the same code 
worked with archives
of different kinds.  To get the same behaviour with the template version 
wouldn't you have to
put the implementation of serialize in the hpp file (ugly), or put it in the 
cpp file and explicitly
instantiate the templates (only works for those archives used as template 
params)?

-- Anders

"Robert Ramey" <ramey_at_[hidden]> wrote in message 
news:eiqdjf$6fa$1_at_sea.gmane.org...
> Anders Wang Kristensen wrote:
>> Thanks for your swift reply!
>>
>> In my example with the non-templated serialize with
>> polymorphic_iarchive the statement BOOST_CLASS_EXPORT(B) fails to
>> compile. It compiles
>> fine without that statement, but fails to serialize with asserion:
>> Assertion failed: NULL != bpos_ptr, file
>> include\boost\archive\detail\oserializer.hpp, line 418
>> If I manully register B with register_type it works.
>>
>> I'm using VC8 and boost 1.33.1 and I've attached the error message
>> from compiling.
>>
>> -- Anders
>
> Try the following:
>
>>> int main(int argc, const char* argv[]){
>>>    boost::shared_ptr<const A> a(new B); // Note "const"
>>>    boost::shared_ptr<A> a1;
>>>    std::stringstream ss;
>>>   {
>>>        boost::archive::polymorphic_text_oarchive oa(ss);
>>>        //oa.template register_type<B>();
>>>       oa << BOOST_SERIALIZATION_NVP(a);
>>>    }
>>>    try{
>>>        boost::archive::polymorphic_text_iarchive ia(ss);
>>>        //ia.template register_type<B>();
>>>        ia >> BOOST_SERIALIZATION_NVP(a1);
>>>    }
>>>    catch(...){
>>>        ...
>>>    }
>>>    B* x = dynamic_cast<B*>(a.get());
>>>    B* y = dynamic_cast<B*>(b.get());
>>>
>>>    assert(*x == *y);
>>>    return 0;
>>> }
>
>
> Also I strongly recommend you used templated serialize functions.
>
> Robert Ramey
>
>
>> 1>Compiling...
>> 1>_main.cpp
>> 1>include\boost\serialization\access.hpp(109) : error C2664: 'void
>> B::serialize(boost::archive::polymorphic_iarchive &,const unsigned
>> int)' : cannot convert parameter 1 from
>> 'boost::archive::text_oarchive' to
>> 'boost::archive::polymorphic_iarchive &' 1>
>> include\boost\serialization\serialization.hpp(81) : see reference to
>> function template instantiation 'void
>> boost::serialization::access::serialize<Archive,T>(Archive &,T
>> &,const unsigned int)' being compiled 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::text_oarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\serialization.hpp(140) : see
>> reference to function template instantiation 'void
>> boost::serialization::serialize<Archive,T>(Archive &,T &,const
>> unsigned int)' being compiled
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::text_oarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\archive\detail\oserializer.hpp(152) : see
>> reference to function template instantiation 'void
>> boost::serialization::serialize_adl<Archive,T>(Archive &,T &,const
>> unsigned int)' being compiled
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::text_oarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\archive\detail\oserializer.hpp(145) : while
>> compiling class template member function 'void
>> boost::archive::detail::oserializer<Archive,T>::save_object_data(boost::archive::detail::basic_oarchive
>>
>> &,const void *) const'
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::text_oarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\archive\detail\oserializer.hpp(163) : see
>> reference to class template instantiation
>> 'boost::archive::detail::oserializer<Archive,T>' being compiled
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::text_oarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\archive\detail\oserializer.hpp(162) : while
>> compiling class template member function 'const
>> boost::archive::detail::basic_oserializer
>> &boost::archive::detail::pointer_oserializer<T,Archive>::get_basic_serializer(void)
>> const'
>> 1>        with
>> 1>        [
>> 1>            T=B,
>> 1>            Archive=boost::archive::text_oarchive
>> 1>        ]
>> 1>        include\boost\archive\detail\oserializer.hpp(515) : see
>> reference to class template instantiation
>> 'boost::archive::detail::pointer_oserializer<T,Archive>' being
>> compiled 1>        with
>> 1>        [
>> 1>            T=B,
>> 1>            Archive=boost::archive::text_oarchive
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(86) : see reference
>> to function template instantiation 'const
>> boost::archive::detail::basic_pointer_oserializer
>> &boost::archive::detail::instantiate_pointer_oserializer<Archive,T>(Archive
>> *,T *)' being compiled
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::text_oarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(82) : while
>> compiling class template member function 'void
>> boost::archive::detail::export_impl::archive<Archive,T>::o::invoke(void)'
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::text_oarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(105) : see reference
>> to class template instantiation
>> 'boost::archive::detail::export_impl::archive<Archive,T>::o' being
>> compiled 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::text_oarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(89) : while
>> compiling class template member function 'void
>> boost::archive::detail::export_impl::archive<Archive,T>::instantiate(void)'
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::text_oarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(116) : see reference
>> to class template instantiation
>> 'boost::archive::detail::export_impl::archive<Archive,T>' being
>> compiled 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::text_oarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(115) : while
>> compiling class template member function 'void
>> boost::archive::detail::export_impl::for_each_archive<ASeq,T>::instantiate(void)'
>> 1>        with
>> 1>        [
>> 1>            ASeq=boost::archive::detail::known_archive_types::type,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(132) : see reference
>> to class template instantiation
>> 'boost::archive::detail::export_impl::for_each_archive<ASeq,T>' being
>> compiled
>> 1>        with
>> 1>        [
>> 1>            ASeq=boost::archive::detail::known_archive_types::type,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(131) : while
>> compiling class template member function
>> 'boost::archive::detail::export_generator<T,ASeq>::export_generator(void)'
>> 1>        with
>> 1>        [
>> 1>            T=B,
>> 1>            ASeq=boost::archive::detail::known_archive_types::type
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(177) : see reference
>> to class template instantiation
>> 'boost::archive::detail::export_generator<T,ASeq>' being compiled
>> 1>        with
>> 1>        [
>> 1>            T=B,
>> 1>            ASeq=boost::archive::detail::known_archive_types::type
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(176) : while
>> compiling class template member function 'const
>> boost::archive::detail::export_generator<T,ASeq>
>> *boost::archive::detail::export_instance<T,ASeq>::not_abstract::invoke(void)'
>> 1>        with
>> 1>        [
>> 1>            T=B,
>> 1>            ASeq=boost::archive::detail::known_archive_types::type
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(192) : see reference
>> to class template instantiation
>> 'boost::archive::detail::export_instance<T,ASeq>::not_abstract' being
>> compiled
>> 1>        with
>> 1>        [
>> 1>            T=B,
>> 1>            ASeq=boost::archive::detail::known_archive_types::type
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(211) : see reference
>> to function template instantiation 'std::pair<_Ty1,_Ty2>
>> boost::archive::detail::export_instance_invoke<T,ASeq>(void)' being
>> compiled 1>        with
>> 1>        [
>> 1>            _Ty1=const
>> boost::archive::detail::export_generator<B,boost::archive::detail::known_archive_types::type>
>>
>> *,
>> 1>            _Ty2=const boost::archive::detail::guid_initializer<B>
>> *, 1>            T=B,
>> 1>            ASeq=boost::archive::detail::known_archive_types::type
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(210) : while
>> compiling class template member function 'std::pair<_Ty1,_Ty2>
>> boost::archive::detail::export_archives<T,ASeq>::non_empty_archive_list::invoke(void)'
>> 1>        with
>> 1>        [
>> 1>            _Ty1=const
>> boost::archive::detail::export_generator<B,boost::archive::detail::known_archive_types::type>
>>
>> *,
>> 1>            _Ty2=const boost::archive::detail::guid_initializer<B>
>> *, 1>            T=B,
>> 1>            ASeq=boost::archive::detail::known_archive_types::type
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(225) : see reference
>> to class template instantiation
>> 'boost::archive::detail::export_archives<T,ASeq>::non_empty_archive_list'
>> being compiled
>> 1>        with
>> 1>        [
>> 1>            T=B,
>> 1>            ASeq=boost::archive::detail::known_archive_types::type
>> 1>        ]
>> 1>
>> c:\users\awk\desktop\work\code\src\tests\scenegraph_regression\_main.cpp(129)
>>> see reference to function template instantiation
>>> 'std::pair<_Ty1,_Ty2>
>> boost::archive::detail::export_archives_invoke<B,boost::archive::detail::known_archive_types::type>(B
>>
>> &,boost::archive::detail::known_archive_types::type &)' being compiled
>> 1>        with
>> 1>        [
>> 1>            _Ty1=const
>> boost::archive::detail::export_generator<B,boost::archive::detail::known_archive_types::type>
>>
>> *,
>> 1>            _Ty2=const boost::archive::detail::guid_initializer<B> *
>> 1>        ]
>> 1>include\boost\serialization\access.hpp(109) : error C2664: 'void
>> B::serialize(boost::archive::polymorphic_iarchive &,const unsigned
>> int)' : cannot convert parameter 1 from
>> 'boost::archive::text_iarchive' to
>> 'boost::archive::polymorphic_iarchive &' 1>
>> include\boost\serialization\serialization.hpp(81) : see reference to
>> function template instantiation 'void
>> boost::serialization::access::serialize<Archive,T>(Archive &,T
>> &,const unsigned int)' being compiled 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::text_iarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\serialization.hpp(140) : see
>> reference to function template instantiation 'void
>> boost::serialization::serialize<Archive,T>(Archive &,T &,const
>> unsigned int)' being compiled
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::text_iarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\archive\detail\iserializer.hpp(164) : see
>> reference to function template instantiation 'void
>> boost::serialization::serialize_adl<Archive,T>(Archive &,T &,const
>> unsigned int)' being compiled
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::text_iarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\archive\detail\iserializer.hpp(157) : while
>> compiling class template member function 'void
>> boost::archive::detail::iserializer<Archive,T>::load_object_data(boost::archive::detail::basic_iarchive
>>
>> &,void *,const unsigned int) const'
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::text_iarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\archive\detail\iserializer.hpp(175) : see
>> reference to class template instantiation
>> 'boost::archive::detail::iserializer<Archive,T>' being compiled
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::text_iarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\archive\detail\iserializer.hpp(174) : while
>> compiling class template member function 'const
>> boost::archive::detail::basic_iserializer
>> &boost::archive::detail::pointer_iserializer<T,Archive>::get_basic_serializer(void)
>> const'
>> 1>        with
>> 1>        [
>> 1>            T=B,
>> 1>            Archive=boost::archive::text_iarchive
>> 1>        ]
>> 1>        include\boost\archive\detail\iserializer.hpp(546) : see
>> reference to class template instantiation
>> 'boost::archive::detail::pointer_iserializer<T,Archive>' being
>> compiled 1>        with
>> 1>        [
>> 1>            T=B,
>> 1>            Archive=boost::archive::text_iarchive
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(78) : see reference
>> to function template instantiation 'const
>> boost::archive::detail::basic_pointer_iserializer
>> &boost::archive::detail::instantiate_pointer_iserializer<Archive,T>(Archive
>> *,T *)' being compiled
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::text_iarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(74) : while
>> compiling class template member function 'void
>> boost::archive::detail::export_impl::archive<Archive,T>::i::invoke(void)'
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::text_iarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(105) : see reference
>> to class template instantiation
>> 'boost::archive::detail::export_impl::archive<Archive,T>::i' being
>> compiled 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::text_iarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(89) : while
>> compiling class template member function 'void
>> boost::archive::detail::export_impl::archive<Archive,T>::instantiate(void)'
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::text_iarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(116) : see reference
>> to class template instantiation
>> 'boost::archive::detail::export_impl::archive<Archive,T>' being
>> compiled 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::text_iarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(115) : while
>> compiling class template member function 'void
>> boost::archive::detail::export_impl::for_each_archive<ASeq,T>::instantiate(void)'
>> 1>        with
>> 1>        [
>> 1>
>> ASeq=boost::mpl::list5<boost::archive::text_iarchive,boost::archive::xml_oarchive,boost::archive::xml_iarchive,boost::archive::polymorphic_oarchive,boost::archive::polymorphic_iarchive>,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(122) : see reference
>> to class template instantiation
>> 'boost::archive::detail::export_impl::for_each_archive<ASeq,T>' being
>> compiled
>> 1>        with
>> 1>        [
>> 1>
>> ASeq=boost::mpl::list5<boost::archive::text_iarchive,boost::archive::xml_oarchive,boost::archive::xml_iarchive,boost::archive::polymorphic_oarchive,boost::archive::polymorphic_iarchive>,
>> 1>            T=B
>> 1>        ]
>> 1>include\boost\serialization\access.hpp(109) : error C2664: 'void
>> B::serialize(boost::archive::polymorphic_iarchive &,const unsigned
>> int)' : cannot convert parameter 1 from
>> 'boost::archive::xml_oarchive' to
>> 'boost::archive::polymorphic_iarchive &' 1>
>> include\boost\serialization\serialization.hpp(81) : see reference to
>> function template instantiation 'void
>> boost::serialization::access::serialize<Archive,T>(Archive &,T
>> &,const unsigned int)' being compiled 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::xml_oarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\serialization.hpp(140) : see
>> reference to function template instantiation 'void
>> boost::serialization::serialize<Archive,T>(Archive &,T &,const
>> unsigned int)' being compiled
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::xml_oarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\archive\detail\oserializer.hpp(152) : see
>> reference to function template instantiation 'void
>> boost::serialization::serialize_adl<Archive,T>(Archive &,T &,const
>> unsigned int)' being compiled
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::xml_oarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\archive\detail\oserializer.hpp(145) : while
>> compiling class template member function 'void
>> boost::archive::detail::oserializer<Archive,T>::save_object_data(boost::archive::detail::basic_oarchive
>>
>> &,const void *) const'
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::xml_oarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\archive\detail\oserializer.hpp(163) : see
>> reference to class template instantiation
>> 'boost::archive::detail::oserializer<Archive,T>' being compiled
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::xml_oarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\archive\detail\oserializer.hpp(162) : while
>> compiling class template member function 'const
>> boost::archive::detail::basic_oserializer
>> &boost::archive::detail::pointer_oserializer<T,Archive>::get_basic_serializer(void)
>> const'
>> 1>        with
>> 1>        [
>> 1>            T=B,
>> 1>            Archive=boost::archive::xml_oarchive
>> 1>        ]
>> 1>        include\boost\archive\detail\oserializer.hpp(515) : see
>> reference to class template instantiation
>> 'boost::archive::detail::pointer_oserializer<T,Archive>' being
>> compiled 1>        with
>> 1>        [
>> 1>            T=B,
>> 1>            Archive=boost::archive::xml_oarchive
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(86) : see reference
>> to function template instantiation 'const
>> boost::archive::detail::basic_pointer_oserializer
>> &boost::archive::detail::instantiate_pointer_oserializer<Archive,T>(Archive
>> *,T *)' being compiled
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::xml_oarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(82) : while
>> compiling class template member function 'void
>> boost::archive::detail::export_impl::archive<Archive,T>::o::invoke(void)'
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::xml_oarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(105) : see reference
>> to class template instantiation
>> 'boost::archive::detail::export_impl::archive<Archive,T>::o' being
>> compiled 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::xml_oarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(89) : while
>> compiling class template member function 'void
>> boost::archive::detail::export_impl::archive<Archive,T>::instantiate(void)'
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::xml_oarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(116) : see reference
>> to class template instantiation
>> 'boost::archive::detail::export_impl::archive<Archive,T>' being
>> compiled 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::xml_oarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(115) : while
>> compiling class template member function 'void
>> boost::archive::detail::export_impl::for_each_archive<ASeq,T>::instantiate(void)'
>> 1>        with
>> 1>        [
>> 1>
>> ASeq=boost::mpl::list4<boost::archive::xml_oarchive,boost::archive::xml_iarchive,boost::archive::polymorphic_oarchive,boost::archive::polymorphic_iarchive>,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(122) : see reference
>> to class template instantiation
>> 'boost::archive::detail::export_impl::for_each_archive<ASeq,T>' being
>> compiled
>> 1>        with
>> 1>        [
>> 1>
>> ASeq=boost::mpl::list4<boost::archive::xml_oarchive,boost::archive::xml_iarchive,boost::archive::polymorphic_oarchive,boost::archive::polymorphic_iarchive>,
>> 1>            T=B
>> 1>        ]
>> 1>include\boost\serialization\access.hpp(109) : error C2664: 'void
>> B::serialize(boost::archive::polymorphic_iarchive &,const unsigned
>> int)' : cannot convert parameter 1 from
>> 'boost::archive::xml_iarchive' to
>> 'boost::archive::polymorphic_iarchive &' 1>
>> include\boost\serialization\serialization.hpp(81) : see reference to
>> function template instantiation 'void
>> boost::serialization::access::serialize<Archive,T>(Archive &,T
>> &,const unsigned int)' being compiled 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::xml_iarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\serialization.hpp(140) : see
>> reference to function template instantiation 'void
>> boost::serialization::serialize<Archive,T>(Archive &,T &,const
>> unsigned int)' being compiled
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::xml_iarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\archive\detail\iserializer.hpp(164) : see
>> reference to function template instantiation 'void
>> boost::serialization::serialize_adl<Archive,T>(Archive &,T &,const
>> unsigned int)' being compiled
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::xml_iarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\archive\detail\iserializer.hpp(157) : while
>> compiling class template member function 'void
>> boost::archive::detail::iserializer<Archive,T>::load_object_data(boost::archive::detail::basic_iarchive
>>
>> &,void *,const unsigned int) const'
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::xml_iarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\archive\detail\iserializer.hpp(175) : see
>> reference to class template instantiation
>> 'boost::archive::detail::iserializer<Archive,T>' being compiled
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::xml_iarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\archive\detail\iserializer.hpp(174) : while
>> compiling class template member function 'const
>> boost::archive::detail::basic_iserializer
>> &boost::archive::detail::pointer_iserializer<T,Archive>::get_basic_serializer(void)
>> const'
>> 1>        with
>> 1>        [
>> 1>            T=B,
>> 1>            Archive=boost::archive::xml_iarchive
>> 1>        ]
>> 1>        include\boost\archive\detail\iserializer.hpp(546) : see
>> reference to class template instantiation
>> 'boost::archive::detail::pointer_iserializer<T,Archive>' being
>> compiled 1>        with
>> 1>        [
>> 1>            T=B,
>> 1>            Archive=boost::archive::xml_iarchive
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(78) : see reference
>> to function template instantiation 'const
>> boost::archive::detail::basic_pointer_iserializer
>> &boost::archive::detail::instantiate_pointer_iserializer<Archive,T>(Archive
>> *,T *)' being compiled
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::xml_iarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(74) : while
>> compiling class template member function 'void
>> boost::archive::detail::export_impl::archive<Archive,T>::i::invoke(void)'
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::xml_iarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(105) : see reference
>> to class template instantiation
>> 'boost::archive::detail::export_impl::archive<Archive,T>::i' being
>> compiled 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::xml_iarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(89) : while
>> compiling class template member function 'void
>> boost::archive::detail::export_impl::archive<Archive,T>::instantiate(void)'
>> 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::xml_iarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(116) : see reference
>> to class template instantiation
>> 'boost::archive::detail::export_impl::archive<Archive,T>' being
>> compiled 1>        with
>> 1>        [
>> 1>            Archive=boost::archive::xml_iarchive,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(115) : while
>> compiling class template member function 'void
>> boost::archive::detail::export_impl::for_each_archive<ASeq,T>::instantiate(void)'
>> 1>        with
>> 1>        [
>> 1>
>> ASeq=boost::mpl::list3<boost::archive::xml_iarchive,boost::archive::polymorphic_oarchive,boost::archive::polymorphic_iarchive>,
>> 1>            T=B
>> 1>        ]
>> 1>        include\boost\serialization\export.hpp(122) : see reference
>> to class template instantiation
>> 'boost::archive::detail::export_impl::for_each_archive<ASeq,T>' being
>> compiled
>> 1>        with
>> 1>        [
>> 1>
>> ASeq=boost::mpl::list3<boost::archive::xml_iarchive,boost::archive::polymorphic_oarchive,boost::archive::polymorphic_iarchive>,
>> 1>            T=B
>> 1>        ]
>>
>> ----- Original Message -----
>> From: "Robert Ramey" <ramey_at_[hidden]>
>> Newsgroups: gmane.comp.lib.boost.user
>> Sent: Tuesday, November 07, 2006 2:42 AM
>> Subject: Re: Serialization with
>> polymorphic_*_archiveandBOOST_CLASS_EXPORT
>>
>>
>>> Anders Wang Kristensen wrote:
>>>> Hi,
>>>>
>>>> I'm having trouble serializing through the a pointer to the base as
>>>> shown below.
>>>> If I manually register class B with template register_type<B>() it
>>>> works, but I
>>>> would rather use the BOOST_CLASS_EXPORT macros since that is more
>>>> convenient.
>>>>
>>>> Unfortunately BOOST_CLASS_EXPORT  assumes you are using the
>>>> templated version of serialize, and not
>>>> polymorphic_iarchive/oarchive, that I'm using.
>>>
>>> I don't think that's true. Maybe you mean it assums you are using
>>> member serialize functions - but that won't be true either.
>>>
>>> Basically I think your example should function.  Where does it fail?
>>> Does it throw and exception? where? does the assert fail?, etc.,etc.
>>> Also what compiler, os, version of boost etc.?
>>>
>>> Though its beside the point, I would also make your example more
>>> portable wit the fillowing
>>> changes:
>>>
>>> ...
>>> struct A {
>>>    template<class Archive>
>>>    void serialize(Archive & ar, const unsigned int file_version);
>>>    ...
>>> };
>>> template<class Archive>
>>> void A::serialize(Archive & ar, const unsigned int file_version){
>>>    ar & BOOST_SERIALIZATION_NVP(data);
>>> }
>>>
>>> struct B : public A {
>>>    template<class Archive>
>>>    void serialize(Archive & ar, const unsigned int file_version);
>>>    ...
>>> };
>>>
>>> template<class Archive>
>>> void B::serialize(Archive & ar, const unsigned int file_version){
>>>    ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(A);
>>>    ar & BOOST_SERIALIZATION_NVP(foo);
>>> }
>>>
>>> BOOST_CLASS_EXPORT(B)
>>>
>>> int main(int argc, const char* argv[]){
>>>    boost::shared_ptr<A> a(new B);
>>>    boost::shared_ptr<A> a1;
>>>    std::stringstream ss;
>>>   {
>>>        boost::archive::polymorphic_text_oarchive oa(ss);
>>>        //oa.template register_type<B>();
>>>       oa << BOOST_SERIALIZATION_NVP(a);
>>>    }
>>>    try{
>>>        boost::archive::polymorphic_text_iarchive ia(ss);
>>>        //ia.template register_type<B>();
>>>        ia >> BOOST_SERIALIZATION_NVP(a1);
>>>    }
>>>    catch(...){
>>>        ...
>>>    }
>>>    B* x = dynamic_cast<B*>(a.get());
>>>    B* y = dynamic_cast<B*>(b.get());
>>>
>>>    assert(*x == *y);
>>>    return 0;
>>> }
>>
>> ----- Original Message -----
>> From: "Robert Ramey" <ramey_at_[hidden]>
>> Newsgroups: gmane.comp.lib.boost.user
>> Sent: Tuesday, November 07, 2006 2:42 AM
>> Subject: Re: Serialization with
>> polymorphic_*_archiveandBOOST_CLASS_EXPORT
>>
>>
>>> Anders Wang Kristensen wrote:
>>>> Hi,
>>>>
>>>> I'm having trouble serializing through the a pointer to the base as
>>>> shown below.
>>>> If I manually register class B with template register_type<B>() it
>>>> works, but I
>>>> would rather use the BOOST_CLASS_EXPORT macros since that is more
>>>> convenient.
>>>>
>>>> Unfortunately BOOST_CLASS_EXPORT  assumes you are using the
>>>> templated version of serialize, and not
>>>> polymorphic_iarchive/oarchive, that I'm using.
>>>
>>> I don't think that's true. Maybe you mean it assums you are using
>>> member serialize functions - but that won't be true either.
>>>
>>> Basically I think your example should function.  Where does it fail?
>>> Does it throw and exception? where? does the assert fail?, etc.,etc.
>>> Also what compiler, os, version of boost etc.?
>>>
>>> Though its beside the point, I would also make your example more
>>> portable wit the fillowing
>>> changes:
>>>
>>> ...
>>> struct A {
>>>    template<class Archive>
>>>    void serialize(Archive & ar, const unsigned int file_version);
>>>    ...
>>> };
>>> template<class Archive>
>>> void A::serialize(Archive & ar, const unsigned int file_version){
>>>    ar & BOOST_SERIALIZATION_NVP(data);
>>> }
>>>
>>> struct B : public A {
>>>    template<class Archive>
>>>    void serialize(Archive & ar, const unsigned int file_version);
>>>    ...
>>> };
>>>
>>> template<class Archive>
>>> void B::serialize(Archive & ar, const unsigned int file_version){
>>>    ar & BOOST_SERIALIZATION_BASE_OBJECT_NVP(A);
>>>    ar & BOOST_SERIALIZATION_NVP(foo);
>>> }
>>>
>>> BOOST_CLASS_EXPORT(B)
>>>
>>> int main(int argc, const char* argv[]){
>>>    boost::shared_ptr<A> a(new B);
>>>    boost::shared_ptr<A> a1;
>>>    std::stringstream ss;
>>>   {
>>>        boost::archive::polymorphic_text_oarchive oa(ss);
>>>        //oa.template register_type<B>();
>>>       oa << BOOST_SERIALIZATION_NVP(a);
>>>    }
>>>    try{
>>>        boost::archive::polymorphic_text_iarchive ia(ss);
>>>        //ia.template register_type<B>();
>>>        ia >> BOOST_SERIALIZATION_NVP(a1);
>>>    }
>>>    catch(...){
>>>        ...
>>>    }
>>>    B* x = dynamic_cast<B*>(a.get());
>>>    B* y = dynamic_cast<B*>(b.get());
>>>
>>>    assert(*x == *y);
>>>    return 0;
>>> }