persistent C++ objects

Hello! In my thesis i do some testing of all the basic types, complex types and opaque types. My question is: Is it poosible to create a user defines C++ object and save it in the database. In the last version of informix server it is possible to use user defined Java objecter, and I wonder if something like that is possible with C++ too. I dont mean opaque types which use a C struct as structure. Christine