do { menu_selection = main_menu(); switch (menu_selection) { case 1 : display(primes); break; case 2 : display(fibos); break; case 3 : display(primes_and_fibos); break; case 4 : display(primes_not_fibos); break; case 5 : display(fibos_not_primes); break; case 6 : search(); break; case 7 : break; default: cout << "\nThat is an invalid option. Please try again.\n\n";
} while (condition_main != 7);
return 0;