odd or even number testing

Bjarne Stroustrup “Programming Principles and Practice Using C++”
Chapter 3 Exercise 8
Using std_lib_facilities.h by Bjarne Stroustrup.

[code language=”cpp”]
// Philipp Siedler
// Bjarne Stroustrup’s PP
// Chapter 3 Exercise 8

#include "std_lib_facilities.h"

int main()
{
cout << "enter an integer to test if it is odd or even: ";
int valueToTest;
cin >> valueToTest;

if (valueToTest % 2 == 1)
{
cout << valueToTest << " is an odd number\n";
}
else
{
cout << valueToTest << " is an even number\n";
}

keep_window_open();
}
[/code]

Output 1:
enter an integer to test if it is odd or even: 5
5 is an odd number
Please enter a character to exit

Output 2:
enter an integer to test if it is odd or even: 4
4 is an even number
Please enter a character to exit