prevent the creation of an empty internal namespace in the doc

trivial bugfix for master

Point_set_processing_3/include/CGAL/compute_average_spacing.h

@@ -35,9 +35,9 @@ namespace CGAL {
 // ----------------------------------------------------------------------------
 // Private section
 // ----------------------------------------------------------------------------
+/// \cond SKIP_IN_MANUAL
 namespace internal {
 
-/// \cond SKIP_IN_MANUAL
 
 /// Computes average spacing of one query point from K nearest neighbors.
 ///
@@ -84,9 +84,9 @@ compute_average_spacing(const typename Kernel::Point_3& query, ///< 3D point who
   return sum_distances / (FT)i;
 }
 
+} /* namespace internal */
 /// \endcond
 
-} /* namespace internal */
 
 
 // ----------------------------------------------------------------------------

Point_set_processing_3/include/CGAL/jet_estimate_normals.h

@@ -37,9 +37,9 @@ namespace CGAL {
 // ----------------------------------------------------------------------------
 // Private section
 // ----------------------------------------------------------------------------
+/// \cond SKIP_IN_MANUAL
 namespace internal {
 
-/// \cond SKIP_IN_MANUAL
 
 /// Estimates normal direction using jet fitting
 /// on the k nearest neighbors.
@@ -101,9 +101,9 @@ jet_estimate_normal(const typename Kernel::Point_3& query, ///< point to compute
   return monge_form.normal_direction();
 }
 
+} /* namespace internal */
 /// \endcond
 
-} /* namespace internal */
 
 
 // ----------------------------------------------------------------------------

Point_set_processing_3/include/CGAL/jet_smooth_point_set.h

@@ -36,9 +36,10 @@ namespace CGAL {
 // ----------------------------------------------------------------------------
 // Private section
 // ----------------------------------------------------------------------------
+/// \cond SKIP_IN_MANUAL
+
 namespace internal {
 
-/// \cond SKIP_IN_MANUAL
 
 /// Smoothes one point position using jet fitting on the k
 /// nearest neighbors and reprojection onto the jet.
@@ -101,9 +102,10 @@ jet_smooth_point(
   return monge_form.origin();
 }
 
+} /* namespace internal */
+
 /// \endcond
 
-} /* namespace internal */
 
 
 // ----------------------------------------------------------------------------

Point_set_processing_3/include/CGAL/mst_orient_normals.h

@@ -46,8 +46,8 @@ namespace CGAL {
 // ----------------------------------------------------------------------------
 // Private section
 // ----------------------------------------------------------------------------
-namespace internal {
 /// \cond SKIP_IN_MANUAL
+namespace internal {
 
 /// Generalization of std::distance() to compute the distance between 2 integers
 inline std::size_t
@@ -523,10 +523,8 @@ create_mst_graph(
     return mst_graph;
 }
 
-/// \endcond
-
 } /* namespace internal */
-
+/// \endcond
 
 // ----------------------------------------------------------------------------
 // Public section

Point_set_processing_3/include/CGAL/pca_estimate_normals.h

@@ -38,9 +38,9 @@ namespace CGAL {
 // ----------------------------------------------------------------------------
 // Private section
 // ----------------------------------------------------------------------------
+/// \cond SKIP_IN_MANUAL
 namespace internal {
 
-/// \cond SKIP_IN_MANUAL
 
 /// Estimates normal direction using linear least
 /// squares fitting of a plane on the K nearest neighbors.
@@ -93,9 +93,9 @@ pca_estimate_normal(const typename Kernel::Point_3& query, ///< point to compute
   return plane.orthogonal_vector();
 }
 
+} /* namespace internal */
 /// \endcond
 
-} /* namespace internal */
 
 
 // ----------------------------------------------------------------------------

Point_set_processing_3/include/CGAL/pca_smooth_point_set.h

@@ -36,9 +36,9 @@ namespace CGAL {
 // ----------------------------------------------------------------------------
 // Private section
 // ----------------------------------------------------------------------------
+/// \cond SKIP_IN_MANUAL
 namespace internal {
 
-/// \cond SKIP_IN_MANUAL
 
 /// Smoothes one point position using linear least
 /// squares fitting of a plane (PCA) on the K
@@ -93,9 +93,9 @@ pca_smooth_point(
   return plane.projection(query);
 }
 
+} /* namespace internal */
 /// \endcond
 
-} /* namespace internal */
 
 // ----------------------------------------------------------------------------
 // Public section

Point_set_processing_3/include/CGAL/remove_outliers.h

@@ -35,9 +35,9 @@ namespace CGAL {
 // ----------------------------------------------------------------------------
 // Private section
 // ----------------------------------------------------------------------------
+/// \cond SKIP_IN_MANUAL
 namespace internal {
 
-/// \cond SKIP_IN_MANUAL
 
 /// Utility function for remove_outliers():
 /// Computes average squared distance to the K nearest neighbors.
@@ -91,9 +91,8 @@ compute_avg_knn_sq_distance_3(
     return sq_distance;
 }
 
-/// \endcond
-
 } /* namespace internal */
+/// \endcond
 
 
 // ----------------------------------------------------------------------------

Point_set_processing_3/include/CGAL/remove_outliers_wrt_median_knn_sq_distance.h

@@ -35,9 +35,9 @@ namespace CGAL {
 // ----------------------------------------------------------------------------
 // Private section
 // ----------------------------------------------------------------------------
+/// \cond SKIP_IN_MANUAL
 namespace internal {
 
-/// \cond SKIP_IN_MANUAL
 
 /// Utility function for remove_outliers_wrt_median_knn_sq_distance():
 /// Computes median squared distance to the K nearest neighbors.
@@ -88,10 +88,10 @@ compute_median_knn_sq_distance_3(
     return sqd(points[k_median]/*[points.size()/2]*/, query);
 }
 
-/// \endcond
-
 } /* namespace internal */
 
+/// \endcond
+
 
 // ----------------------------------------------------------------------------
 // Public section