void setString(char **, char *);
boolean strEqual(char *, char *);
boolean strEqualN(char *, char *, int);
-boolean strEqualPrefix(char *, char *);
-boolean strEqualSuffix(char *, char *);
+boolean strPrefix(char *, char *);
+boolean strSuffix(char *, char *);
void GetOptions(char **, void (*print_usage_function)(void));
void *checked_calloc(unsigned long);
void *checked_realloc(void *, unsigned long);
void checked_free(void *);
+void clear_mem(void *, unsigned long);
void swap_numbers(int *, int *);
void swap_number_pairs(int *, int *, int *, int *);