Robert Ramey wrote:
I've found an implementation of shared pointer serialization that martin ecker sent me some time ago. It seems to me that it is simple transparent and would satisfy all requirements.
Depends on whether your requirements include serializations of shared_ptr<X> for different X'es sharing ownership. template<class Archive, class T> inline void load( Archive & ar, boost::shared_ptr<T> &t, const unsigned int /* file_version */ ){ T* r; ar >> boost::serialization::make_nvp("px", r); t = ar.get_shared_ptr_registry().lookup(r); lookup(r) probably returns a shared_ptr<T> for the assignment to work... This probably means that there are separate map< T*, shared_ptr<T> > registries for each T. if (!t) { t.reset(r); ar.get_shared_ptr_registry().register_shared_ptr(t); } } This approach covers most of the real-world cases, so it's definitely better than the status quo. Go for it.