The following code example is taken from the book
Object-Oriented Programming in C++
by Nicolai M. Josuttis, Wiley, 2002
© Copyright Nicolai M. Josuttis 2002
// include header files for the classes that are being used
#include "frac1.hpp"
int main()
{
CPPBook::Fraction x; // initialisation using the default constructor
CPPBook::Fraction w(7,3); // initialisation using the int/int constructor
// output fraction w
w.print();
// fraction w is assigned to fraction x
x = w;
// convert 1000 to a fraction and assign the result to w
w = CPPBook::Fraction(1000);
// output x and w
x.print();
w.print();
}