Use of CIN as a Condition and Using cin.get() to Pause the Program

//this simple program shows use of the address operator,
//cin as a condition,
//and cin.get() to pause a program indefinitely

#include <iostream>
using namespace std;

void sx(int&);
void output(int&);
void pauseProgram();

int main()
{
    int x;
    sx(x);
    output(x);
    pauseProgram();
    return 0;
}

void sx(int &x) //this function demonstrates using cin as a condition. since it takes x as a reference parameter it doesn't need to return x.
{
    while(!(cin>>x))
    {
        cin >> x;
        cin.clear();
        cin.ignore(100,'\n');
    }
    return;
}

void output(int &x) //this function is a simple cout function to simplify main
{
    cout << endl;
    cout << "The value of x is: " << x << endl;
    cout << "The memory address of x is: " << &x << endl;
    return;
}

void pauseProgram()  //this simple function pauses the program until any key even enter/return is pressed.
{
    cin.get();
    cin.get();
    return;
}