C++ Switch statement loop back to menu - c++

Question

I'm struggling to get my switch statement to go back to the start after an option is selected, to allow the user to input another option. I removed all the code from the switch cases just to cut it down a bit.
Thanks
int main() {
char tab = '\t';
int input;
bool menu = true;
FlightSystem f;
vector <Aircraft> allAircraftList_{};
std::string flightNumber, airline, aircraftType, gridReference;
int groundSpeed, altitude, heading;
const int MaxAlt = 60000, MinAlt = 0, MaxSpeed = 800, MinHeading = 0, MaxHeading = 360;
regex fNumber{ "([a-z]{2}([a-z])?[0-9]([0-9])?([0-9])?([0-9])?([0-9])?)" };
do {
std::cout << "#########################################################" << endl;
std::cout << "#Flight Control Simulation#" << endl;
std::cout << "#########################################################" << endl;
std::cout << "" << endl;
std::cout << tab << "1. Add Aircraft" << endl;
std::cout << tab << "2. List All Aircraft" << endl;
std::cout << tab << "3. List All Cruising Aircraft" << endl;
std::cout << tab << "4. Number of Aircrafts in Sector" << endl;
std::cout << tab << "5. Remove Aircraft" << endl;
std::cout << tab << "6. Change Heading" << endl;
std::cout << tab << "7. Get Heading" << endl;
std::cout << tab << "8. Change Altitude" << endl;
std::cout << tab << "9. Get Altitude" << endl;
std::cout << "" << endl;
std::cout << "---------------------------------------------------------" << endl;
std::cout << "Please enter an option, between 1-9:" << endl;
std::cin >> input;
switch (input) {
case:
break;
default:
cout << "Your selection must be between 1 and 9" << endl;
}
return 0;
} while (input != 9);
}

Answer 1

Here is my advice. Use a while loop. do-while loop in this case is unnecessary.
here's how it can be used (i made a simple program that enters a number, you can modify it accordingly, just replace my code with your switch statements)
#include<iostream>
using namespace std;
int main()
{
int x;
bool repeat = true;
while(repeat)
{
cout<<"enter a number"<<endl;
cin>>x;
cout<<"do you want to enter another number (y/n)"<<endl;
char ch;
cin>>ch;
if(ch=='y'||ch =='Y')
continue;
else
repeat = false;
}
cout<<"you entered "<<x;
}