bwood <brass@mailvault.com> writes:
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.
No, you just read it and throw it away. if (version == 11) { type_of_deleted_member ignored; ar & ignored; } -- Dave Abrahams Boost Consulting www.boost-consulting.com