Trouble with Menus

[EmC88]

I am trying to sort out a menu where the user gives the program some input then has five options to select from.

Three (A/B/C) do a thing with calculations and function calls, which work perfectly. Two (D/E) allow the user to either start the program over or end the program.

The core of the issue lies in starting the program over. Using a while loop, I can end the program no problem if the other options aren't selected -- as long as option D(start the program over) is omitted. But I cannot get the program to start over.

#include <iostream>
#include <cstring>
using namespace std;

// Main
int main() {
	// Variables
	char input = '0';
	char choice = '0';
    
	// Gather User Input
	cout << "Give the program some input: ";
	cin >> input;

	// Ask user what they want to do
	cout << "\nA) Does a thing.\n"
		<< "B) Does another thing.\n"
		<< "C) Does a third thing. \n"
		<< "D) Start the program over.\n"
		<< "E) Exit.\n\n";
	cout << "Please make a choice: " ;
	cin >> choice;

	// Check to see if the user wants to continue.   
    while(choice != 'e' && choice != 'E')
    {
    if (choice == 'a' || choice == 'A')
    {
        cout << "You selected A! A function was called and a thing happened.";
        break;
    }else if (choice == 'b' || choice == 'B')
    {
    	cout << "You selected B! A function was called and a thing happened.";
    	break;
    }else if (choice == 'c' || choice == 'C')
    {
        cout << "You selected C! A function was called and a thing happened.";  
        break;
	}else if (choice == 'd' || choice == 'D')
	{
	cout << "Give the program some input: ";
	cin >> input;
	}
    }
    
cout << "\nProgram has ended.";    
return 0;
} // End Main

[EmC88]

GAH!

I figured out a solution. Instead of using a while loop I used switch statement nested in a do/while loop. For example:

do{
// menu 
// option a
// option b
// option c
// option d start program over
// exit program

switch (choice)
{
case 'A': // things are happening!
// case B
// case C
// so on and so forth
}

}while(); // parameters 

Hope this helps anyone else experiencing a similar problem!