[Boost-users] [boost::statechart] some questions

From: Jeffrey Holle (jeffreyholle_at_[hidden])
Date: 2007-04-12 16:47:04

I'm using boost CVS version gotten on Fri Apr  6 11:48:58 EDT 2007.

I'm starting to use boost::statechart for the first time.

Scanning the available documentation has produced some questions.

I found the following text in a C++ comment within the tutorial:
context<>() is used to gain access to the direct or indirect context 
of a state.  This can either be a direct or indirect outer state or the 
state machine itself.

1,  What does "direct" "indirect" context mean?

It is documented a number of places that the possible types of reactions 
are:
   1. custom-reaction
   2. in-state-reaction
   3. deferral
   4. transition

2.  What is the syntax for using an "in-state-reaction", which I assume 
is a self transition?

3.  What is a custom-reaction?

4.  What is a deferral?