-use triangulation geom traits instead of building a new one for squared_radius function
-modif function computing status of vertices: avoid two non-necessary comparison per vertex
-modif function computing status of edges: use incident cells instead of incident facets to init alpha_mid and alpha_max to avoid comparison of identical values
I had to reactivate Alpha_shape_euclidean_traits_3 to get
a Compute_squared_radius_3 with an operator() for a single point.
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M include/CGAL/Alpha_shape_euclidean_traits_3.h
M examples/Alpha_shapes_3/ex_alpha_shapes_3.cpp
M examples/Alpha_shapes_3/makefile