Fix headers

Arrangement_on_surface_2/doc/Arrangement_on_surface_2/CGAL/IO/Qt_widget_Conic_arc_2.h

@@ -1,9 +0,0 @@
-/*!
-\ingroup PkgArrangement2op_left_shift
-Inserts a conic arc into a given `Qt_widget` stream.
-Only the basic geometric and topological features of the conic arcs are
-written. Auxiliary data that might be attached is lost.
-*/
-template<typename ConicArc>
-Qt_widget& operator<< (std::ostream& os,
-                       const _Conic_x_monotone_arc_2<ConicArc>& cv);

Arrangement_on_surface_2/doc/Arrangement_on_surface_2/CGAL/IO/Qt_widget_Polyline_2.h

@@ -1,12 +0,0 @@
-namespace CGAL {
-
-/*!
-\ingroup PkgArrangement2op_left_shift
-Inserts a polyline into a given `Qt_widget` stream.
-Only the basic geometric and topological features of the polylines are
-written. Auxiliary data that might be attached is lost.
-*/
-template<typename SegmentTraits>
-Qt_widget& operator<< (std::ostream& os,
-                       const Polyline_2<SegmentTraits>& polyline);
-}

Surface_mesher/doc/Surface_mesher/CGAL/IO/Complex_2_in_triangulation_3_file_writer.h

@@ -29,5 +29,15 @@ bool output_surface_facets_to_off (std::ostream& os,
 				   int options = 
 				   Surface_mesher::IO_ORIENT_SURFACE);
 
+ namespace Surface_mesher {
+/*!
+\ingroup PkgSurfaceMesher3FunctionsIO
+ Options for function `output_surface_facets_to_off()`.
+*/
+    enum IO_option { NO_OPTION = 0,
+                     IO_ORIENT_SURFACE = 1,
+                     IO_VERBOSE = 2 };
+    
+  } /* namespace Surface_mesher */
 } /* namespace CGAL */
 

Surface_mesher/doc/Surface_mesher/CGAL/IO/Io_option.h

@@ -1,13 +0,0 @@
-namespace CGAL {
-  namespace Surface_mesher {
- 
-/*!
-\ingroup PkgSurfaceMesher3FunctionsIO
- Options for function `output_surface_facets_to_off()`.
-*/
-    enum IO_option { NO_OPTION = 0,
-                     IO_ORIENT_SURFACE = 1,
-                     IO_VERBOSE = 2 };
-    
-  }
-}