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>
#include "apply1.hpp"
void incr (int& a)
{
++a;
}
void print (int a)
{
std::cout << a << std::endl;
}
int main()
{
int x = 7;
apply (x, print);
apply (x, incr);
}