diff --git a/Circular_kernel_2/include/CGAL/Circular_arc_2.h b/Circular_kernel_2/include/CGAL/Circular_arc_2.h
index a83289ddab2..4c3ce138d89 100644
--- a/Circular_kernel_2/include/CGAL/Circular_arc_2.h
+++ b/Circular_kernel_2/include/CGAL/Circular_arc_2.h
@@ -65,6 +65,7 @@ public:
     : RCircular_arc_2(typename R::Construct_circular_arc_2()(c))
   {}
 
+  // Not Documented
   Circular_arc_2(const Circle_2 &support, 
                  const Line_2 &l1, const bool b_l1,
                  const Line_2 &l2, const bool b_l2)
@@ -72,6 +73,7 @@ public:
 		      R::Construct_circular_arc_2()(support,l1,b_l1,l2,b_l2))
   {}
 
+  // Not Documented
   Circular_arc_2(const Circle_2 &c, 
 		 const Circle_2 &c1, const bool b_1,
 		 const Circle_2 &c2, const bool b_2)
diff --git a/Circular_kernel_2/include/CGAL/Circular_kernel_2/function_objects_polynomial_circular.h b/Circular_kernel_2/include/CGAL/Circular_kernel_2/function_objects_polynomial_circular.h
index a7038f05d8c..31191eb42c5 100644
--- a/Circular_kernel_2/include/CGAL/Circular_kernel_2/function_objects_polynomial_circular.h
+++ b/Circular_kernel_2/include/CGAL/Circular_kernel_2/function_objects_polynomial_circular.h
@@ -678,12 +678,14 @@ namespace CircularFunctors {
                const Circular_arc_point_2 &target) const
     { return Rep(support,source,target); }
 
+    // Not Documented
     result_type
     operator()(const Circle_2 &support,
                const Line_2 &l1, bool b1,
                const Line_2 &l2, bool b2) const
     { return Rep(support,l1,b1,l2,b2); }
 
+    // Not Documented
     result_type
     operator()(const Circle_2 &c,
                const Circle_2 &c1, bool b_1,
@@ -696,6 +698,7 @@ namespace CircularFunctors {
                const Point_2 &end) const
     { return Rep(begin,middle,end); }
 
+    // Not Documented
     result_type
     operator()(const Point_2 &begin,
                const Point_2 &end,
@@ -724,12 +727,14 @@ namespace CircularFunctors {
     operator()(void) 
     { return Rep(); }
 
+    // Not Documented
     result_type
     operator()(const Line_2 &support,
 	       const Circle_2 &c1,const bool b1,
 	       const Circle_2 &c2,const bool b2) const
     { return Rep(support,c1,b1,c2,b2); }
 
+    // Not Documented
     result_type
     operator()(const Line_2 &support,
 	       const Line_2 &l1,
diff --git a/Circular_kernel_2/include/CGAL/Circular_kernel_2/functions_on_circle_2.h b/Circular_kernel_2/include/CGAL/Circular_kernel_2/functions_on_circle_2.h
index 78f66a1280f..9b6dfb8b5e7 100644
--- a/Circular_kernel_2/include/CGAL/Circular_kernel_2/functions_on_circle_2.h
+++ b/Circular_kernel_2/include/CGAL/Circular_kernel_2/functions_on_circle_2.h
@@ -25,37 +25,37 @@
 #ifndef CGAL_CIRCULAR_KERNEL_FUNCTIONS_ON_CIRCLE_2_H
 #define CGAL_CIRCULAR_KERNEL_FUNCTIONS_ON_CIRCLE_2_H
 
-namespace CGAL {
+CGAL_BEGIN_NAMESPACE
 
-  // Should we have an iterator based interface, or both ?
-  template <class CK>
-  typename CK::Circular_arc_point_2
-  x_extremal_point(const Circle_2<CK> & c, bool i)
-  {
-  	return CircularFunctors::x_extremal_point<CK>(c,i);
-  }
+// Should we have an iterator based interface, or both ?
+template <class CK>
+typename CK::Circular_arc_point_2
+x_extremal_point(const Circle_2<CK> & c, bool i)
+{
+	return CircularFunctors::x_extremal_point<CK>(c,i);
+}
   
-  template <class CK, class OutputIterator>
-  OutputIterator
-  x_extremal_points(const Circle_2<CK> & c, OutputIterator res)
-  {
-  	return CircularFunctors::x_extremal_points<CK>(c,res);
-  }
+template <class CK, class OutputIterator>
+OutputIterator
+x_extremal_points(const Circle_2<CK> & c, OutputIterator res)
+{
+ 	return CircularFunctors::x_extremal_points<CK>(c,res);
+}
 
-  template <class CK>
-  typename CK::Circular_arc_point_2
-  y_extremal_point(const Circle_2<CK> & c, bool i)
-  {
-    return CircularFunctors::y_extremal_point<CK>(c,i);
-  }
+template <class CK>
+typename CK::Circular_arc_point_2
+y_extremal_point(const Circle_2<CK> & c, bool i)
+{
+  return CircularFunctors::y_extremal_point<CK>(c,i);
+}
 
-  template <class CK, class OutputIterator>
-  OutputIterator
-  y_extremal_points(const Circle_2<CK> & c, OutputIterator res)
-  {
-  	return CircularFunctors::y_extremal_points<CK>(c,res);
-  }
+template <class CK, class OutputIterator>
+OutputIterator
+y_extremal_points(const Circle_2<CK> & c, OutputIterator res)
+{
+ 	return CircularFunctors::y_extremal_points<CK>(c,res);
+}
 
-} // namespace CGAL
+CGAL_END_NAMESPACE
 
 #endif // CGAL_CIRCULAR_KERNEL_FUNCTIONS_ON_CIRCLE_2_H
diff --git a/Circular_kernel_2/include/CGAL/Line_arc_2.h b/Circular_kernel_2/include/CGAL/Line_arc_2.h
index ee9f7a184eb..40863e5ce2b 100644
--- a/Circular_kernel_2/include/CGAL/Line_arc_2.h
+++ b/Circular_kernel_2/include/CGAL/Line_arc_2.h
@@ -59,12 +59,14 @@ public:
      : RLine_arc_2(typename R::Construct_line_arc_2()())
    {}
 
+   // Not Documented
    Line_arc_2(const Line_2 &support,
 	      const Circle_2 &c1,const bool b1,
 	      const Circle_2 &c2,const bool b2)
      : RLine_arc_2(typename R::Construct_line_arc_2()(support, c1, b1, c2, b2))
    {}
 
+   // Not Documented
    Line_arc_2(const Line_2 &support,
 	       const Line_2 &l1,
 	       const Line_2 &l2)
diff --git a/Circular_kernel_2/test/Circular_kernel_2/test_Line_arc.cpp b/Circular_kernel_2/test/Circular_kernel_2/test_Line_arc.cpp
index fa6fe884f74..1e5b3a69448 100644
--- a/Circular_kernel_2/test/Circular_kernel_2/test_Line_arc.cpp
+++ b/Circular_kernel_2/test/Circular_kernel_2/test_Line_arc.cpp
@@ -59,7 +59,7 @@ void _test_Line_arc(CK ck)
   Circle_2 circle2(center_circle1, circle1_r * circle1_r * 4);
   Point_2 p2_line_horizontal(1, 0);
 
-  Line_arc_2 line_arc_horizontal(Line_2(center_circle1, p2_line_horizontal),
+  Line_arc_2 line_arc_horizontal = Line_arc_2(Line_2(center_circle1, p2_line_horizontal),
 			circle1,
 			true,
 			circle2,