Mikael Carlsson wrote:

Dear list,

I am using the observer pattern in a design and would like to make both subject and observers serializable. The subject hold a base class pointer to the observes and the observers holds a base class pointer to the subject.

If I have understood the library correct I must register the class for base class pointers in order to serialize the class pointer.

Nope - you just have to indicate the base class for each class that has one.

This means that I must include the concrete subject in the concrete observers and vice versa. The means that I will run into circular dependencies.

Nope C++ doesn't permit a circular derived/base class structure

I guess that I am missing something here, the observer pattern must be frequently used and be serialized.

You're confusing the class structure which cannot be circular with a seqence of pointers which can be circular. The library can handle circular pointer references with no problem. Robert Ramey