Re: [Boost-bugs] [Boost C++ Libraries] #9525: Assert with program termination due to context<...>() call in simple_state's entry action is incorrect

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #9525: Assert with program termination due to context<...>() call in simple_state's entry action is incorrect
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-01-26 18:12:14

#9525: Assert with program termination due to context<...>() call in
simple_state's entry action is incorrect
-------------------------------+-----------------------------
  Reporter:  anonymous         |      Owner:  andreas_huber69
      Type:  Bugs              |     Status:  new
 Milestone:  To Be Determined  |  Component:  statechart
   Version:  Boost 1.49.0      |   Severity:  Problem
Resolution:                    |   Keywords:
-------------------------------+-----------------------------

Comment (by anonymous):

 Replying to [comment:2 anonymous]:
 > It says "must not call", but it doesn't say *anything* about getting an
 assert and the program termination when you make a mistake (e.g. add
 context() call to a simple_state constructor but forget to change
 simple_state into state).

 IIRC, neither do the standard docs for std::vector::end.

 > Is this really the only way you can say "you've made a mistake" here?

 The only other thing that comes to mind is throwing an exception, but
 exceptions have the problem that they can be ignored. Calling context()
 from a simple_state constructor makes the program broken beyond any hope
 of recovery. If you have any other suggestions, I'm all ears.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/9525#comment:3>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.