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From: Alexander Nasonov (alnsn_at_[hidden])
Date: 2005-02-15 00:43:24
David Abrahams wrote:
> So it's just a way of classifying states with common properties?
Yes.
> That's a clever approach to dealing with substates. I'm not sure it
> works for every case, but then, the details of how substates are
> supposed to work have always eluded me.
I'm not quite sure my approach works well with substates.
> I still don't see how you can keep associated data stored in the
> Active base sub-object alive across all the other active states, at
> least not without copying it.
Transition is copying. It is implied by transition pattern:
NewState operator()(id, State, Event) const;
^^^^^^^^ new state is returned by value
-- Alexander
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