Hi Igor
The fact that transition actions are members of simple_state<> subclasses. If you apply the pattern outlined in the FAQ item, none of these classes are visible to FSM clients. Looking at
http://www.boost.org/doc/libs/1_35_0/libs/statechart/doc/faq.html#HideInnerW...
Is it possible to apply this apporoach to the asynchronous_state_machine?
Yes, but not in exactly the same way.
For some reasone, trying to do so in my program causes compiler error: "use of undefined type 'Active'". Probably, I've done something wrong, but I'd like to know if it should work theoretically, before I turn my code upside down :).
In your asynchronous_state_machine<> subclass hpp file add the following line : private: // ... virtual void initiate_impl(); In your asynchronous_state_machine<> subclass cpp file add the following lines: void YourClassName::initiate_impl() { machine_base::initiate(); } Please let me know whether that works for you. Thanks & Regards, -- Andreas Huber When replying by private email, please remove the words spam and trap from the address shown in the header.