The following code example is taken from the book
C++ Templates - The Complete Guide, 2nd Edition
by David Vandevoorde, Nicolai M. Josuttis, and Douglas Gregor,
Addison-Wesley, 2017
© Copyright David Vandevoorde, Nicolai M. Josuttis, Douglas Gregor 2017
#include <iostream>
// print elements of an STL container
template<typename T>
void printcoll (T const& coll)
{
typename T::const_iterator pos; // iterator to iterate over coll
typename T::const_iterator end(coll.end()); // end position
for (pos=coll.begin(); pos!=end; ++pos) {
std::cout << *pos << ' ';
}
std::cout << '\n';
}