whilefactorial.cpp

C++ sample code, for the book: C++ black book, including templates, exceptional handling.

#include <iostream>
using namespace std;

int main()
{
    int value = 6, factorial = 1, temp;

    temp = value;   //make a destructive copy of the data.

    while (temp > 0) {
        factorial *= temp--;
    }

    cout << value << "! = " << factorial << endl;
}