[Gecode] Namespaces

[Guido Tack]

Hi.

Attached to this mail you find a diagram showing a possible reorganization of 
the namespaces in Gecode. This won't solve our problems with the API, though: 
A Gecode user should see a special variable view (which doesn't allow posting 
basic constraints or messing up the variable in any other way), propagator 
post functions, and the usual Space interface. Gabor and I came to the 
conclusion that, with our current design, we cannot really enforce this, the 
user will always be able to mess things up if he really wants to. So the 
namespaces will give a hint on which interfaces one should use and which one 
shouldn't touch.

Comments?

-- 
Guido Tack
Programming Systems Lab
http://www.ps.uni-sb.de/~tack
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