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 "stack1.hpp"
#include <iostream>
#include <string>
int main()
{
Stack<int> intStack; // stack of ints
Stack<std::string> stringStack; // stack of strings
// manipulate int stack
intStack.push(7);
std::cout << intStack.top() << '\n';
// manipulate string stack
stringStack.push("hello");
std::cout << stringStack.top() << '\n';
stringStack.pop();
}