Re: [boost] Proposal to add a Boost.FSM library

From: Alexander Nasonov (alnsn_at_[hidden])
Date: 2006-12-18 16:46:01

Andrey Semashev wrote:
> Thanks for the article. It dropped me a thought of a way of improving my
> automatic transitions support in runtime.
You're welcome!  What idea, BTW?

> Although, I still don't catch the point of creating/destroying state
> objects during transitions. This can even be inconvenient if a state
> is intended to be visited more than once.
It's easy to draw a graph by analyzing signatures of transitions. It's
not possible with switch_to<State>() because these calls can appear
anywhere in the on_process body. This is very important use case, IMO.

You can always define a state with a pointer to the state's data. This
is usually a good distinction especially if states hierarchy is used
to model inner and outer states. In this case, states hierarchy in often
not related to state's data hierarchy.

-- 
Alexander Nasonov
http://nasonov.blogspot.com
Knowledge is knowing that we cannot know. -- Ralph Waldo Emerson
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