CGAL users discussion list

[<>]

Hi,
I need to delete vertices from my Delaunay Triangulation. There is a function
remove() that asks for the handle to the vertex as the parameter. 
I pass to it a parameter which is a pointer to the vertex (instance of
Adaptation Traits::Site_2). Instead of deleting, it gives me an error.

CGAL error: assertion violation!
Expr: n == NULL
File: /usr/include/CGAL/Compact_container.h
Line: 681
Explanation:
terminate called after throwing an instance of 'CGAL::Assertion_exception'
  what():  CGAL ERROR: assertion violation!
Expr: n == NULL
File: /usr/include/CGAL/Compact_container.h
Line: 681
Aborted

Help!!

Thanks in advance.