char *fd_read_line (int);
uerr_t retrieve_url (const char *, char **, char **, const char *, int *);
-uerr_t retrieve_from_file (const char *, int, int *);
+uerr_t retrieve_from_file (const char *, bool, int *);
-char *retr_rate (wgint, double, int);
+char *retr_rate (wgint, double, bool);
double calc_rate (wgint, double, int *);
void printwhat (int, int);