\begin{ccRefFunction}{compare_lexicographically}
\ccInclude{CGAL/predicates_d.h}

\ccFunction{Comparison_result compare_lexicographically(const
  Point_d<R>& p, const Point_d<R>& q);}{Compares the Cartesian
  coordinates of points \ccStyle{p} and \ccStyle{q} lexicographically
  in ascending order of its Cartesian components \ccc{p[i]} and
  \ccc{q[i]} for $i = 0,\ldots,d-1$.  \ccPrecond \ccc{p.dimension() ==
    q.dimension()}}
\end{ccRefFunction}