Re: [Boost-users] [statechart] Is it possible to have nested (sub)states in an asynchronous state machine?

Thanks for the recommendation. The problem turned out to be indeed with forward declarations. I wish the compilation errors were somewhat more informative, so that I could find the root cause of the problem easily.

I don't know what compiler you used and what your real code looked like, but when I tried to compile some portions of your sample code with VC10, I got a lot of "use of undefined type" errors.