Phone_Book_Directory

This mini project is entirely console-based and developed in C++ (without graphic). Double link-list data structure is used to handle contact directories. And through file handling, this application will permanently retain all of the data in storted form. This Application enables users to view their store contacts and conduct the addition of new contacts and the deletion of existing ones, respectively.

Different functions are being used in it are:

void createDummyHead();

void addcontact(string name,string number,string email);

void search_by_name(string name);

void delete_by_name(string name);

void update_contact(string Up_name);

bool valid_mail(string email);

void display_all_contacts();

void display_all_contact();

bool empty();

void delHead();

void save_contacts();

void delete_all_contact();

void read_from_file();

virtual ~Phone();

void changeCase(string &a, string &b);