如何序列化共享/弱指针?

我有一个复杂的对象网络,与qsharedpointers和qweakpointers连接。有没有一个简单的方法可以用boost.serialization保存/加载它们?到目前为止,我有:

namespace boost {
    namespace serialization {
        template<class Archive, class T>
        void save(Archive& ar, QSharedPointer<T> const& ptr, unsigned version) {
            T* sharedPointer = ptr.data();
            ar & BOOST_SERIALIZATION_NVP(sharedPointer);
        }

        template<class Archive, class T>
        void load(Archive& ar, QSharedPointer<T>& ptr, unsigned version) {
            T* sharedPointer = 0;
            ar & BOOST_SERIALIZATION_NVP(sharedPointer);
            ptr = QSharedPointer<T>(sharedPointer);
        }

        template<class Archive, class T>
        void save(Archive& ar, QWeakPointer<T> const& ptr, unsigned version) {
            T* weakPointer = ptr.toStrongRef().data();
            ar & BOOST_SERIALIZATION_NVP(weakPointer);
        }

        template<class Archive, class T>
        void load(Archive& ar, QWeakPointer<T>& ptr, unsigned version) {
            T* weakPointer = 0;
            ar & BOOST_SERIALIZATION_NVP(weakPointer);
            ptr = QSharedPointer<T>(weakPointer);
        }
    }
}

这不起作用,因为共享指针总是用原始指针构造的,所以它们都认为引用计数是1。它也立即释放弱指针。

通过一些努力,我可以将类转换为 boost::shared_ptr 和 boost::weak_ptr .那有什么好处吗?