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 "myfirst.hpp"
// use of the template
int main()
{
double ice = 3.0;
print_typeof(ice); // call function template for type double
}