From: Aleksey Gurtovoy (agurtovoy_at_[hidden])
Date: 2006-11-14 02:22:25
David Abrahams writes:
> "Terry G" <tjgolubi_at_[hidden]> writes:
>
> >>> BTW, on the boost website, there are three versions of the FSM player
> >>> example.
> >> Where?
> >
> > Its in the Boost 1.33.1 download from the website, in
> > boost/libs/mpl/example/fsm.
> > I have the book CD too, of course. Which is "best"?
>
> Oh, crud. We should have included a README file there, and I hope
> Aleksey will help me get this sorted out so I can write one.
>
> Here's what I think:
>
> player1.cpp - this is exactly what's covered in the book; in fact, it
> was auto-extracted from the examples as shown in the book.
Yep.
> player2.cpp - this example demonstrates that the abstraction of the
> framework is complete by replacing its implementation with one that
> dispatches using O(1) table lookups, while still using the same
> code to describe the particular FSM. Look at this one if you want
> to see how to generate a static lookup table that's initialized at
> dynamic initialization time.
Correct.
> player.cpp, state_machine.hpp - this is something Aleksey wrote. I'm
> not sure, but I think it predates the book,
It does.
> and is more sophisticated in some ways
In particular, it supports state invariants and maintains an internal
event queue.
> but probably should be treated as an advanced example.
Yep.
-- Aleksey Gurtovoy MetaCommunications Engineering