CGAL 5.4.4  2D and 3D Linear Geometry Kernel

AdaptableFunctor
(with two arguments)CGAL::compare_xyz()
Operations  
Comparison_result  operator() (const Kernel::Point_3 &p, const Kernel::Point_3 &q) 
Compares the Cartesian coordinates of points p and q lexicographically in \( xyz\) order: first \( x\)coordinates are compared, if they are equal, \( y\)coordinates are compared. More...  
Comparison_result Kernel::CompareXYZ_3::operator()  (  const Kernel::Point_3 &  p, 
const Kernel::Point_3 &  q  
) 
Compares the Cartesian coordinates of points p
and q
lexicographically in \( xyz\) order: first \( x\)coordinates are compared, if they are equal, \( y\)coordinates are compared.
If they are equal, \( z\)coordinates are compared.