void (*join) (int *(column[2]), int *(row[2])); /* ? */
void (*cumulate) (int cumtype, int start, int *end, int max, int *actual);
void (*flags) (unsigned *);
void (*join) (int *(column[2]), int *(row[2])); /* ? */
void (*cumulate) (int cumtype, int start, int *end, int max, int *actual);
void (*flags) (unsigned *);