changed .C to .cpp in examples

Convex_hull_3/demo/Convex_hull_3/makefile

@@ -51,6 +51,6 @@ clean: \
 #                    suffix rules
 #---------------------------------------------------------------------#
 
-.C$(OBJ_EXT):
+.cpp$(OBJ_EXT):
 	$(CGAL_CXX) $(CXXFLAGS) $(OBJ_OPT) $<
 

Convex_hull_3/doc_tex/Convex_hull_3/convex_hull_3.tex

@@ -37,7 +37,7 @@ The following program computes the convex hull of a set of 250 random
 points chosen from a sphere of radius 100.  It then determines if the 
 resulting hull is a segment or a polyhedron.  
 
-\ccIncludeExampleCode{Convex_hull_3/quickhull_3_ex.C}
+\ccIncludeExampleCode{Convex_hull_3/quickhull_3_ex.cpp}
 
 
 \section{Incremental  Convex Hull Construction}
@@ -67,7 +67,7 @@ example.
 
 \subsection{Example}
 
-\ccIncludeExampleCode{Convex_hull_3/incremental_hull_3_demo.C}
+\ccIncludeExampleCode{Convex_hull_3/incremental_hull_3_demo.cpp}
 
 \section{Dynamic  Convex Hull Construction}
 \ccIndexSubitem{convex hull, 3D}{dynamic}
@@ -86,6 +86,6 @@ infinite vertex of the triangulation are on the convex hull but it may be that
 not all of them are vertices of the hull.
 
 \subsection{Example}
-\ccIncludeExampleCode{Convex_hull_3/dynamic_hull_3_ex.C}
+\ccIncludeExampleCode{Convex_hull_3/dynamic_hull_3_ex.cpp}
 
 

Convex_hull_3/doc_tex/Convex_hull_3_ref/convex_hull_3.tex

@@ -89,7 +89,7 @@ hull is a segment or a polyhedron.  Notice that the traits class is not
 necessary in the call to \ccc{convex_hull_3} but is used in the definition
 of \ccc{Polyhedron_3}.
 
-\ccIncludeExampleCode{Convex_hull_3/quickhull_3_ex.C}
+\ccIncludeExampleCode{Convex_hull_3/quickhull_3_ex.cpp}
 
 \ccIndexSubitemEnd{convex hull, 3D}{quickhull}
 \ccIndexMainItemEnd{quickhull, 3D}

Convex_hull_3/doc_tex/Convex_hull_3_ref/convex_hull_incremental_3.tex

@@ -68,7 +68,7 @@ worst case and $O(n \log n)$ expected time.
 The following example computes the convex hull of a set of 250 random 
 points chosen uniformly in a sphere of radius 100.
 
-\ccIncludeExampleCode{Convex_hull_3/incremental_hull_3_ex.C}
+\ccIncludeExampleCode{Convex_hull_3/incremental_hull_3_ex.cpp}
 
 \ccIndexSubitemEnd{convex hull, 3D}{incremental}
 \ccIndexMainItemEnd{convex hull, 3D}