-typedef struct SMPI_Graph_topology SMPI_Graph_topology;
-typedef struct SMPI_Cart_topology SMPI_Cart_topology;
-typedef struct SMPI_Dist_Graph_topology SMPI_Dist_Graph_topology;
-typedef struct SMPI_Type_Contiguous SMPI_Type_Contiguous;
-typedef struct SMPI_Type_Hindexed SMPI_Type_Hindexed;
-typedef struct SMPI_Type_Hvector SMPI_Type_Hvector;
-typedef struct SMPI_Type_Indexed SMPI_Type_Indexed;
-typedef struct SMPI_Type_Struct SMPI_Type_Struct;
-typedef struct SMPI_Type_Vector SMPI_Type_Vector;