CGAL 6.0.1  Shape Regularization

A concept that describes the set of methods used by the class QP_regularization
to access neighbors of a geometric object being regularized.
Segments::Delaunay_neighbor_query_2
Public Member Functions  
void  operator() (const std::size_t query_index, std::vector< std::size_t > &neighbors) 
fills in neighbors with indices of all geometric objects, which are direct neighbors of the object with the index query_index .  
void CGAL::Shape_regularization::NeighborQuery::operator()  (  const std::size_t  query_index, 
std::vector< std::size_t > &  neighbors  
) 
fills in neighbors
with indices of all geometric objects, which are direct neighbors of the object with the index query_index
.
QP_regularization
calls this method once for each object from the input range.