What is the Template Method Pattern in C++?

Can you explain the Template Method Pattern in C++?

Sure! The Template Method Pattern defines the skeleton of an algorithm in a method, deferring some steps to subclasses.

How does it differ from other design patterns?

It focuses on defining the structure of an algorithm while allowing subclasses to redefine certain steps, promoting code reuse.

Can you give me a code example?

Absolutely! Here's a simple example:

class AbstractClass {
public:
    void TemplateMethod() {
        Step1();
        Step2();
    }
    virtual void Step1() = 0;
    virtual void Step2() = 0;
};

class ConcreteClass : public AbstractClass {
public:
    void Step1() override { /* implementation */ }
    void Step2() override { /* implementation */ }
};

This shows how the template method calls the steps defined in subclasses.

What are the benefits of using this pattern?

The benefits include promoting code reuse, reducing code duplication, and providing a clear structure for algorithms.