missing enum simplification in Hexa

Author: pcarruscag

Common/include/geometry/primal_grid/CHexahedron.hpp

@@ -35,14 +35,14 @@
  * See CPrimalGridWithConnectivity.
  */
 struct CHexahedronConnectivity {
-  static constexpr unsigned short nNodes = N_POINTS_HEXAHEDRON;
-  static constexpr unsigned short nFaces = N_FACES_HEXAHEDRON;
+  enum { nNodes = N_POINTS_HEXAHEDRON };
+  enum { nFaces = N_FACES_HEXAHEDRON };
+  enum { maxNodesFace = N_POINTS_QUADRILATERAL };
+  enum { VTK_Type = HEXAHEDRON };
   static constexpr unsigned short nNodesFace[6] = {4,4,4,4,4,4};
-  static constexpr unsigned short maxNodesFace = 4;
   static constexpr unsigned short Faces[6][4] = {{0,1,5,4},{1,2,6,5},{2,3,7,6},{3,0,4,7},{0,3,2,1},{4,5,6,7}};
   static constexpr unsigned short nNeighbor_Nodes[8] = {3,3,3,3,3,3,3,3};
   static constexpr unsigned short Neighbor_Nodes[8][3] = {{1,3,4},{0,2,5},{1,3,6},{0,2,7},{0,5,7},{4,6,1},{2,5,7},{4,3,6}};
-  static constexpr unsigned short VTK_Type = 12;
 };
 
 /*!

Common/src/geometry/primal_grid/CHexahedron.cpp

@@ -28,14 +28,10 @@
 #include "../../../include/geometry/primal_grid/CHexahedron.hpp"
 #include "../../../include/option_structure.hpp"
 
-constexpr unsigned short CHexahedronConnectivity::nNodes;
-constexpr unsigned short CHexahedronConnectivity::nFaces;
 constexpr unsigned short CHexahedronConnectivity::nNodesFace[6];
-constexpr unsigned short CHexahedronConnectivity::maxNodesFace;
 constexpr unsigned short CHexahedronConnectivity::Faces[6][4];
 constexpr unsigned short CHexahedronConnectivity::nNeighbor_Nodes[8];
 constexpr unsigned short CHexahedronConnectivity::Neighbor_Nodes[8][3];
-constexpr unsigned short CHexahedronConnectivity::VTK_Type;
 
 CHexahedron::CHexahedron(unsigned long val_point_0, unsigned long val_point_1,
              unsigned long val_point_2, unsigned long val_point_3,