2 Apr
2004
2 Apr
'04
4:22 p.m.
From: "David Bergman" <davidb@home.se>
So, for me it is pretty easy, traits *only* describes Model-invariant parts of Concept Features while policies furnish Models of Concepts.
Skipping all the GP stuff: traits DESCRIBE and policies ACT.
I don't agree. I think it has to do with how the classes are used. A template parameter permits clients to inject different information and behavior, making it a policy class. When the class is well known and is "just used" where needed, it is a traits class. -- Rob Stewart stewart@sig.com Software Engineer http://www.sig.com Susquehanna International Group, LLP using std::disclaimer;