David Abrahams wrote:

...

"Le Chaud Lapin" <unoriginal_usern...@yahoo.com> writes: More than anything in programming, I depend on type to create form. Versioning implies that types are semi-weak.

If versioning in serialized form implies that, then so do revisions of

your type in a version control system. So, basically, once you design

a class, it never evolves?

Along the lines of what Lapin is thinking, I think B.Ser's "versioning" support is problematic. For example, consider wanting to move (or delete) a data member out of a type between versions 1.1 and 1.2. B.Ser needs that member to remain in the type in order to support 1.1. To answer the question: I make changes to types over time, but this sort of a change is thwarted by the B.Ser approach. An idea of how to better structure a component can't be implemented in a direct way because the approach taken by the library isn't able to cope with the fluidity of software development. If a server (version) has to support multiple versions of a type at the same time, conditional compilation wouldn't be helpful either. If members are simply being added to a type between version 1.1 and 1.2, there remains this blurring of types. Brian www.webEbenezer.net