BUGFIX: Avoid segfault when calling find_optimal_alpha with less that 3 points

2011-06-09 10:04:51 +00:00 · 2011-06-09 10:04:51 +00:00 · 1c2852d004
parent bed9ead9ba
commit 1c2852d004
1 changed files with 2 additions and 0 deletions
--- a/Alpha_shapes_2/include/CGAL/Alpha_shape_2.h
+++ b/Alpha_shapes_2/include/CGAL/Alpha_shape_2.h
@ -1406,6 +1406,8 @@ Alpha_shape_2<Dt>::find_alpha_solid() const
  // starting point for searching 
  // takes O(#alpha_shape) time
  Coord_type alpha_solid = 0;
+  
+  if (number_of_vertices()<3) return alpha_solid;

  Finite_vertices_iterator vertex_it;
  // only finite vertices