Robert Ramey wrote:
Basically, you need to ensure the templates (which contain static data) get instantiated only once.
how do you do this?
This is not a Loki mailing list, so I don't want to chew up tons of bandwidth, but you can look at SingletonDLL under their distribution for hints. I've found that there's still some wonky-ness with Microsoft's compiler, and so I pretty much gave up on trying to globally fix the issues, and ending up having actual concrete classes for my factories, which inside their .cpp implemetation files used the templated Singletons in an anonymous namespace. That way, the templates only ever appear in implemetation files, but not in headers, so I only get one copy. Maybe someday I'll go back and re-visit the issue, but the last time I looked into it, I was more interested in "a solution for Eric's programs" than the "100% correct solution for everyone's programs".