On Dec 3, 2009, at 2:58 PM, Christophe Henry wrote:
Hi Franz,
SC 19.63630 s Rhapsody 4.95109 s MSM 0.90754 s
Thanks for the review and for the very interesting comparison with Rhapsody, which I found impressive for several reasons: - Rhapsody is, I think, a pretty costly tool (I heard 15k€) so I expected some cool fsm framework and instead the event dispatching really is just a simple switch on states of if/else on event ids, so a pretty basic implementation (though it would be interesting to see how more complicated machines are generated). Of course, as it is made for embedded development, this is understandable. - although this is such basic C-like implementation, Msm is 5 times faster. This is fascinating, the rootState_processEvent is so simple, one can wonder how it is possible to be faster. I find this a good example of the power of metaprogramming.
I have two (harsh?) questions to this community: 1. Is there a Boost library removal process, so that one can at least mark a library as deprecated? The duality, sort of, to the acceptance process. 2. *If* (i) MSM were part of Boost before Statechart and (ii) compilers could handle massive transition tables (in the order of a few hundred transitions), would Statechart have been accepted?
I love C++ :)
I am certain that C++ loves you back, Cristophe. /David