Calculater switch statement

switchstatement.cpp

#include <iostream>
#include "AirAndVolume.h"

int cubestuff(void) {
  AirAndVolume Cube;
}

int case2stuff(void) {
//  test a;
}

int main(int argc, char *argv[]) {

  using std::cout, std::cin, std::endl;

  while(1) {
    int chois;
    
    cout << "    ----- CalculatorV -----" << endl << endl << endl << endl;
    cout << "		~Volumes et Aires~\n\n1) Cube/Rectangle	2) Triangle\n3) Cylindre		4) Pyramide\n5) Cone			6) Sphere / Demi Sphere\n\n";
    cout << "Select a option with the number of the option :";
    
    cin >> chois;
    switch(chois) {
      case 1:
        cubestuff();
        break;
      case 2:
        case2stuff();
        break;
      default:
        cout << "Unknow chois" << endl;   
    }
  } /* ! while(1) */

}