C++ Templates: The Complete Guide

Chapter 3. Class Templates

Similar to functions, classes can also be parameterized with one or more types. Container classes, which are used to manage elements of a certain type, are a typical example of this feature. By using class templates, you can implement such container classes while the element type is still open. In this chapter we use a stack as an example of a class template.

3.1 Implementation of Class Template Stack

As we did with function templates, we declare and define class Stack<> in a header file as follows (we discuss the separation of declaration and definition in different files in Section 7.3 on page 89):

// basics/stack1.hpp #include <vector> #include <stdexcept> template <typename T> class Stack {   private:     std::vector<T> ...