The following code example is taken from the book
C++ Templates - The Complete Guide
by David Vandevoorde and Nicolai M. Josuttis, Addison-Wesley, 2002
© Copyright David Vandevoorde and Nicolai M. Josuttis 2002
#include <iostream>
class EmptyClass {
};
int main()
{
std::cout << "sizeof(EmptyClass): " << sizeof(EmptyClass)
<< '\n';
}