int main(int argc, char** argv) {
const int Sentinel = 0; //The value 0 Exits the program if entered by the user.
int input = 1; //Variable 'input' is where the value entered by the user is stored.
string name; //This value stores the name of a contact.
//It is meant to be instantiated by the askName() function
ContactList clientList;
cout << "This program is designed to maintain contact information" << endl;
while(input != Sentinel) //Loop structure. Loop will only exit when 0 is entered.
{
menu(); //display menu and choices
cin >> input; //User inputs a choice. Choice is saved in 'input'
//Perform appropriate operation pending on the input value.
if(input == 1)
{ cout <<"(Add Contact)"<< endl;
clientList.addToHead(getContact());
}
else if(input == 2)
{
if(clientList.empty())
{ cout <<"Error:Cannot delete from empty contact list" << endl; }
else
{
cout <<"(Delete Contact)" << endl;
name = askName();
if(clientList.verify(name))
{clientList.delete_ByName(name);}
else{ cout << "Error:Contact '" << name << "' not found in the contact list" << endl;}
}
}
else if(input == 3)
if(clientList.empty())
{ cout <<"Error:Cannot display empty contact list" << endl; }
else{
cout << "(Display all Contacts)"<< endl;
clientList.displayList();
}
else if(input == 4)
if(clientList.empty())
{ cout <<"Error:Cannot display specific contact from empty contact list" << endl; }
else{
cout <<"(Display Specific Contact)"<< endl;
name = askName();
if(clientList.verify(name))
{clientList.get_ByName(name)->display();}
else
{cout << "Error: Contact '" << name << "' not found in the contact list" << endl;}
}
}
return 0;
}
