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
template <typename T>
inline T const& max (T const& a, T const& b)
{
// if a < b then use b else use a
return a < b ? b : a;
}