Re: [Boost-users] [serialization] : compile problem

Subject: Re: [Boost-users] [serialization] : compile problem
From: Kaz (sfx810_at_[hidden])
Date: 2011-08-20 14:05:08

Hi,
I have taken out the abstract class identifier (
BOOST_SERIALIZATION_ASSUME_ABSTRACT(Base) ),
but still get the compiler error. If I comment the following line from
main(), it compiles fine.

out << BOOST_SERIALIZATION_NVP(baseContainer);

Thanks,
Kaz

On Sat, Aug 20, 2011 at 6:55 PM, Robert Ramey <ramey_at_[hidden]> wrote:
> Kaz wrote:
>> Hi All,
>> I am trying to compile this code to test boost serialization, however
>> I am getting this error
>>
>> Error 5 error C2664: 'boost::mpl::assertion_failed' : cannot convert
>> parameter 1 from 'boost::mpl::failed
>> ************boost::serialization::is_wrapper<T>::* ***********' to
>> 'boost::mpl::assert<false>::type' c:\program files
>> (x86)\boost\boost_1_46_1\boost\archive\basic_xml_oarchive.hpp 92
>>
>> I am using boost 1.46.1, visual studio c++ 2010 express.
>>
>> Any help will be appreciated.
>>
>> Thanks,
>> Kaz
>>
>> //-----------------------------------------------------------------------------------------------------------
>>
>> #include <string>
>> #include <boost/serialization/vector.hpp>
>> #include <boost/serialization/list.hpp>
>> #include <boost/archive/xml_iarchive.hpp>
>> #include <boost/archive/xml_oarchive.hpp>
>> #include <boost/archive/tmpdir.hpp>
>>
>> #include <fstream>
>>
>>
>> class Base
>> {
>> friend class boost::serialization::access;
>> template<typename archive>
>> void serialize( archive& ar, const unsigned int version )
>> {
>> ar &
>> BOOST_SERIALIZATION_NVP(a) &
>> BOOST_SERIALIZATION_NVP(c) &
>> BOOST_SERIALIZATION_NVP (strBase);
>> }
>>
>>
>> public:
>> Base( int a_arg, char c_arg ) : a( a_arg ), c ( c_arg )
>> { strBase = "This is base"; }
>>
>> int a;
>> char c;
>> std::string strBase;
>> };
>>
>> //-------------------------------------
>> BOOST_SERIALIZATION_ASSUME_ABSTRACT(Base)
>> //-------------------------------------
>
> One obvious problem is that it seems that the above class is intended to be
> an abstract base clas but it has no virtual function - hence, it cannot be
> an abstract base class.  I'm guessing that the library is detecting this
> and failing to compile.  Is there not some sort of comment in the source
> code at the point where the mpl assert is called?  If so, what does it say?
>
> Robert Ramey
>
>
>
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