[boost] [serialization]

From: Matthias Schabel (boost_at_[hidden])
Date: 2007-03-27 12:36:30

In attempting to test serialization input for the proposed Boost  
Units library, I am getting this error :

/Users/matthiasschabel/Code/boost-CVS-HEAD-07-02-21-1603/boost/ 
archive/detail/iserializer.hpp:589: error: no matching function for  
call to 'load_wrapper(boost::archive::binary_iarchive&, const  
double&, boost::serialization::is_wrapper<double>)'

corresponding to this code :

     std::ifstream   ifs 
("boost_units_serialize_test.txt",std::ios::binary);

     boost::archive::binary_iarchive bia(ifs);

     for (int i=0;i<100;++i)
     {
         quantity<CGS::area>   ac;

         bia >> ac;
     }

     ifs.close();

where I have defined

/// Boost Serialization library support for quantities.
template<class Archive,class Unit,class Y>
inline void serialize(Archive& ar,boost::units::quantity<Unit,Y>&  
q,const unsigned int version)
{
     ar & q.value();
}

Am I missing something obvious here? I get basically the same error  
if I try using text_iarchive instead...

Matthias