Re: Need help with FSM class

From: emontag_at_[hidden]
Date: 2001-03-20 21:19:35

I don't think you can do what you are trying to do.
I've tried with several complilers, and they all complain.
The most comprehensible compiler error complains about a circular
reference between turnstile and base_fm - which is true. The base
type is trying to access a typedef which is contained within the
derived type.

--- In boost_at_y..., darylew_at_m... wrote:
> I've uploaded an interim version (0) of "fsm.zip" to the Yahoo-
> groups vault.  It's a rip-off of Coplien's FSM structure I saw in an
> Usenet thread.  A variant I did was to not have the state and
> stimulus types as template parameters, but as subtypes of the
> middle FSM class instead, becuase they're never independent of
> the FSM class.  But I'm getting errors like:
>
> //==================
> Error   : 'stimulus_type' is not a struct/union/class member
>  (instantiating: 'boost::fsm_base<turnstile>')
> fsm.hpp line 44   void  fire( typename DerivedFSM::stimulus_type
> s );
> //==================
>
> I'm using Metrowerks CodeWarrior Pro 5, with 5.3 update, on the
> Mac OS.  Is this an error on my part or the compiler's?  How can I
> fix it?
>
> Daryle Walker
> [no .sig, I'm web-posting]