// Add all vertices as source vertices to the CDG object.
// Add all edges as neighbors to the CDG object.
*operation* Cd_Graph* cppCreCDGraph()
*init* (@ new Cd_Graph(new Cd_Adj_List()) @)
*wrapper* Graph
(@
this->cppAddSourceVertices(return_val);
this->cppAddNeighbors(return_val);
@)