/* ask_format.c */
int ask_format(char *, struct Cell_head *, long);
/* check_un.c */
int check_uncompressed(struct Cell_head *, long);
/* factors.c */
int factors(FILE *, long, int);
/* hitreturn.c */
int hitreturn(void);
/* row_addr.c */
int next_row_addr(int, long *, int);
