Thanks for an awesome answer. I agree that your approach with format strings is right, but it was great to hear reasoning against the other options. I agree th

Thanks for an awesome answer. I agree that your approach with format strings is right, but it was great to hear reasoning against the other options. I agree that macros are dangerous for an embedded language. In our iOS C++ framework, they have their uses, mainly if we want to reduce boilerplate code, when - bridging ObjC/C++ worlds - creating e.g. record data types with JSON parsing & other common functionality for records - creating handle objects for refcounted objects but for more complex "embedded languages" we have resorted to C++ templates. Properly used, the give us very nice APIs, but build times are quite bad. Sidenote: I'd love to get an email notification (opt-in per my comment) from HN if someone answers/comments on my comment. Your answer went unnoticed by me for 2 weeks.