CGAL users discussion list

[Lionel <>]

> it's faster to just update the pointers to the neighbors, rather than
destructing the 2 faces, and constructing 2 new ones. I don't think the manual
promises anything better.

For me it is a bug. If your low level optimisation  creates incorrect high
level user data it is a problem.
So with CGAL I can not mark the faces with a unique data to retreive them or 
to
find new created/changed faces.