fixes

Mesh_3/doc/Mesh_3/examples.txt

@@ -20,9 +20,12 @@
 \example Mesh_3/mesh_optimization_example.cpp
 \example Mesh_3/mesh_optimization_lloyd_example.cpp
 \example Mesh_3/mesh_polyhedral_domain.cpp
+\example Mesh_3/mesh_polyhedral_domain_sm.cpp
 \example Mesh_3/mesh_polyhedral_complex.cpp
+\example Mesh_3/mesh_polyhedral_complex_sm.cpp
 \example Mesh_3/remesh_polyhedral_surface.cpp
 \example Mesh_3/mesh_polyhedral_domain_with_features.cpp
+\example Mesh_3/mesh_polyhedral_domain_with_features_sm.cpp
 \example Mesh_3/mesh_polyhedral_domain_with_features_sizing.cpp
 \example Mesh_3/mesh_polyhedral_domain_with_surface_inside.cpp
 \example Mesh_3/mesh_polyhedral_domain_with_lipschitz_sizing.cpp

Mesh_3/include/CGAL/Mesh_cell_criteria_3.h

@@ -126,15 +126,16 @@ typedef Tr::FT FT;
     The behavior and semantic of the arguments are the same
     as above, except that the radius bound parameter is a functional
     instead of a constant.
-    @todo hide the `enable_if_t`
   */
   template <typename Sizing_field>
-  Mesh_cell_criteria_3(const FT& radius_edge_bound,
-                       const Sizing_field& radius_bound,
-                       const FT& min_radius_bound = 0.,
-                       std::enable_if_t<
+  Mesh_cell_criteria_3(const FT& radius_edge_bound
+                       ,const Sizing_field& radius_bound
+                       ,const FT& min_radius_bound = 0.
+#ifndef DOXYGEN_RUNNING
+                       ,std::enable_if_t<
                          Mesh_3::Is_mesh_domain_field_3<Tr,Sizing_field>::value
                        >* = 0
+#endif
                        )
   {
     if (FT(0) != min_radius_bound)

Mesh_3/include/CGAL/Mesh_triangulation_3.h

@@ -206,9 +206,9 @@ and cell base classes are respectively `Vertex_base` and `Cell_base`.
 */
 typedef unspecified_type type;
 
-#endif
+  /// @}
 
-/// @}
+#endif
 
 };  // end struct Mesh_triangulation_3
 }  // end namespace CGAL

Mesh_3/include/CGAL/Polyhedral_mesh_domain_3.h

@@ -369,7 +369,7 @@ public:
 
 
   /**
-   * Constructs  a set of `n points on the surface, and output them to
+   * Constructs  a set of `n` points on the surface, and output them to
    *  the output iterator `pts` whose value type is required to be
    *  `std::pair<Points_3, Index>`.
    */