[adapt] Implement a boundaryFaceIndex method for cellcentered fv geometry for...

[adapt] Implement a boundaryFaceIndex method for cellcentered fv geometry for compatibility with the box fvgeometry.

git-svn-id: svn://svn.iws.uni-stuttgart.de/DUMUX/dumux/trunk@15378 2fb0f335-1f38-0410-981e-8018bf24f1b0

dumux/implicit/cellcentered/ccfvelementgeometry.hh

@@ -228,6 +228,14 @@ public:
             }
         }
     }
+
+    /*!
+     * \brief For compatibilty with the box element geometry
+     */
+    int boundaryFaceIndex(const int fIdx, const int vIdxInFace) const
+    {
+        return fIdx;
+    }
 };
 
 }