c++ inherit from class template

When a class template is inherited in C++, the derived class is able to use the functionality and data members of the base class template. Here is an explanation of the steps involved in inheriting from a class template in C++:

1. Define the base class template: First, you need to define the base class template with the desired functionality and data members. The base class template is a generic class template that can be instantiated with specific types.

2. Declare the derived class: Next, you declare the derived class that will inherit from the base class template. The syntax for declaring a derived class is as follows:

template <typename T> class DerivedClass : public BaseClass<T> { // class members };

In the above syntax, DerivedClass is the name of the derived class, and BaseClass<T> is the name of the base class template that is being inherited. The <T> indicates that the derived class is inheriting from a specialized instance of the base class template.

1. Implement the derived class: After declaring the derived class, you can implement its member functions and define additional members as needed. The derived class can also override virtual functions from the base class template if necessary.

2. Instantiate objects of the derived class: Once the derived class is defined, you can create objects of the derived class with specific types. The types are specified when instantiating the derived class, just like when instantiating the base class template. For example:

DerivedClass<int> obj1; // Instantiate derived class with int type DerivedClass<double> obj2; // Instantiate derived class with double type

In the above code, obj1 is an object of the derived class instantiated with the int type, and obj2 is an object of the derived class instantiated with the double type.

By following these steps, you can inherit from a class template in C++ and create derived classes that can use the functionality and data members of the base class template.