Problem in displaying!!!

[sha92]

Hello!

I need to know how to display the records when i populate from 1st option and then the 2nd option. I can only display the initial records that i populated in option 1. please help!!!

And I want to know how i can make the 3rd and 4th options work??!!??

  #include<iostream>
#include<String>
#include<iomanip>
using namespace std;

const int numofels=1;

struct teletype
{
	string name;
	string phoneno;
	teletype *nextAdd;
};

void populate(teletype *);
void display(teletype *);
void insert(teletype *);
void modify(teletype *);
void remove(teletype *);

int main()
{
	int choice;
	teletype *list, *current, *newrecpoint;

	list = new teletype;
	current = list;
	
	while (true)
	{
		{
			cout << "Pick an option from the following menu:" << endl<<endl;
			cout << "1. Create an initial list of name and phone numbers" << endl;
			cout << "2. Insert a new structure into the linked list" << endl;
			cout << "3. Modify an existing structure in the linked list" << endl;
			cout << "4. Delete an existing structure from the list" << endl;
			cout << "5. Exit from the program" << endl << endl;

			cin >> choice;
			cin.ignore();
		}

		if (choice == 1){

			for (int i = 0; i < numofels - 1; i++)
			{
				populate(current);
				current->nextAdd = new teletype;
				current = current->nextAdd;
			}
		populate(current);
		current->nextAdd = NULL;
		cout << "The list is:" << endl;
		display(list);
		cout << endl;
	}
		else if (choice == 2){
			{
				newrecpoint = new teletype;
				insert(newrecpoint);
			}	
			current->nextAdd = NULL;
			cout << "The list is:" << endl;
			
			display(list); //how to display all 
 			//the records with the new record??
		}
		

		else if (choice == 5){
			cout << "Good Bye!";
			exit(0);
		}
		else
		cout << "Enter a number 1-5 " << endl<<endl;
	}



	system("pause");
	return 0;
}

void populate(teletype *record)
{
	
	cout << "Enter a name: ";
	getline(cin, record->name);
	cout << "Enter the phone number: ";
	getline(cin, record->phoneno);
	cout << endl;
	return;
}

void display(teletype *contents)  
{
	while (contents != NULL)
	{
		cout << endl << setiosflags(ios::left)
			<< setw(30) << contents->name
			<< setw(20) << contents->phoneno;
		contents = contents->nextAdd;
	}
	cout << endl;
	return;
}

void insert(teletype *newrecord)
{
	populate(newrecord);
	return;
}

void modify(teletype *modrecord)
{
	populate(modrecord);
	return;
}