#define MAX_EMAILSTR_LEN (MAX_LIST_ITEMS * (MAX_EMAIL_LEN + 1) + 1)
#define MAX_FIELD_LEN 81
-enum {
+enum field_types {
NAME = 0, /* important */
EMAIL,
ADDRESS,
int save_database();
void remove_selected_items();
void merge_selected_items();
+void remove_duplicates();
void sort_surname();
void sort_by_field(char *field);
void close_database();