[boost] [fusion] curious question

Hi Joel, Joel de Guzman wrote:

I am not against macros per se. I use macros all the time now if it's clearly the best solution to a particular problem.

Allow me a curious question for that matter: What's the rationale for using huge macros in combination with REPEAT_FROM_TO in the Fusion source code (instead of using no macros and ITERATE)? Please don't get me wrong: it's not my intention to complain about one of your remarkably great (no irony) libraries here (and I don't care as its user). I'm having some difficulties to understand how the ugliest way to use macros can be the best solution to that particular problem, though. Regards, Tobias