I had #include <boost/serialization/string.hpp> in the base class of my class ierarchy that is to be serialized, but still i get the warning. I tried to include it in the auto_ptr serialization file, in the descendant class that serialize the auto_ptr to the string, but no luck. Best, Olivier Destrebecq olivierd@real.com On Apr 24, 2006, at 12:44 PM, Olivier Destrebecq wrote:

I'm including serialization in my library and am running into problems.

One of my class include an std::auto_ptr <std::string> I'm including #include <boost/serialization/string.hpp> to handle the string serialization

i downloaded the serialization example for an auto_ptr and modified it to allow for XML serialization (see end of email).

But when i compile get the following error saying: error: 'struct std::basic_string<char, std::char_traits<char>, std::allocator<char> >' has no member named 'serialize'

If i replace the std::auto_ptr <std::string> with just std::string it works, so i assume something is wrong with my auto_ptr code Feel free to ask me more question or send me beginners advice as i'm just beginning with BOOST. Thanks

auto_ptrSerialization.hpp:

#include <list> #include <memory> #include <fstream>

#include <boost/config.hpp> // std::autoptr inteface wrong in dinkumware #include <boost/detail/workaround.hpp>

#include <boost/archive/xml_iarchive.hpp> #include <boost/archive/xml_oarchive.hpp> #include <boost/detail/workaround.hpp>

#include <boost/serialization/split_free.hpp>

namespace boost { namespace serialization {

///////////////////////////////////////////////////////////// // implement serialization for auto_ptr<T> // note: this must be added to the boost namespace in order to // be called by the library template<class Archive, class T> inline void save( Archive & ar, const std::auto_ptr<T> &t, const unsigned int file_version ){ // only the raw pointer has to be saved // the ref count is rebuilt automatically on load T *objectPtr = t.get(); ar << BOOST_SERIALIZATION_NVP(objectPtr); }

template<class Archive, class T> inline void load( Archive & ar, std::auto_ptr<T> &t, const unsigned int file_version ){ T *objectPtr; ar >> BOOST_SERIALIZATION_NVP(objectPtr); // note that the reset automagically maintains the reference count #if BOOST_WORKAROUND(BOOST_DINKUMWARE_STDLIB, == 1) t.release(); t = std::auto_ptr<T>(objectPtr); #else t.reset(objectPtr); #endif }

// split non-intrusive serialization function member into separate // non intrusive save/load member functions template<class Archive, class T> inline void serialize( Archive & ar, std::auto_ptr<T> &t, const unsigned int file_version ){ split_free(ar, t, file_version); }

} // namespace serialization } // namespace boost

Best, Olivier Destrebecq olivierd@real.com