Hello,<br><br>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; we are currently implementing serialization versioning using boost and I am curious to know if their is a way to support a changing class hierarchy. Let&#39;s say C derives from A for a while and then a change requires C to derive from B instead, which derives from A. Is it possible to support such a change provided we know what default values are needed for the new class? I tried and even if don&#39;t serialize anything in class C I get stream errors because I believe boost saves some base info for each class. When it tries to reload those value from a old stream, obviously it desynchronizes it because the values are not in the stream. So is their a way around this?
<br><br>Also is it possible to support the removal of a class. If, for exemple C derives from B which in turn derives from A and suddenly B is removed. Is their a way to deal with this without invalidating all previously saved data?
<br><br>Thank you for your help!<br clear="all"><br>-- <br>Frédérick Martel-Lupien<br>Étudiant en Génie Informatique<br>Université de Sherbrooke<br><a href="mailto:fred.lupien@gmail.com">fred.lupien@gmail.com</a>