if (e >= 6 | e <= -1)
    {
          while (e >= 6 or e <= -1)
          {
                cout << "The number you've entered isn't a proper choice, please choose 0 through 5." << endl;
                cin >> e;
          }
    }

   
if (e >= 6 | e <= -1)
    {
          while (e >= 6 or e <= -1)
          {
                cout << "The number you've entered isn't a proper choice, please choose 0 through 5." << endl;
                cin.clear(); //reset input flags
                cin.ignore(numeric_limits<streamsize>::max(),'\n') ;
                cin >> e;
          }
    }

#include <cstdlib>
#include <iostream>
#include <limits>
 
using namespace std;

int intGet();
int main(int argc, char *argv[])
{
    int x = 0;
    while (x == 0)
    {
   
    x = intGet();
   
    }

    cout << endl << "Number:" << x << endl;
    system("PAUSE");
    return EXIT_SUCCESS;
}
int intGet()
{
  int number = 0;
  cout << "Enter an integer: ";
  cin >> number;
  cin.ignore(numeric_limits<int>::max(), '\n');
  if (!cin || cin.gcount() != 1)
     {
     cout << "Please enter a valid integer" << endl; 
     cin.clear();//reset the input flags
     cin.ignore(numeric_limits<int>::max(), '\n');
     return 0;
 
     }
  else
     {return number;}           
}