Design Patterns in Modern C++
- 12.5 hours on-demand video
- 1 article
- 83 downloadable resources
- 21 coding exercises
- Full lifetime access
- Access on mobile and TV
- Certificate of Completion
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- Recognize and apply design patterns
- Refactor existing designs to use design patterns
- Reason about applicability and usability of design patterns
- Learn how to use different aspects of Modern C++
A look at the Single Responsibility Principle, which states that a class should only have one reason to change. Also tied to the concept of Separation of Concerns which is basically stating the same thing.
A discussion of the Open-Closed Principle, which states that classes should be open for extension, but closed for modification. In other words, you should extend functionality using interfaces and inheritance rather than jumping back into already-written/tested code and adding to it or changing it.
This lesson also demonstrates the Specification pattern.
In order to write a unit test that uses a singleton, we must abstract it away. This is typically done by extracting the singleton's interface and then taking that interface as a dependency (e.g., a constructor parameter). This way, you can supply a fake object instead, thereby getting a true unit test instead of an integration test.
The Monostate design pattern is a bizarre variation on the Singleton: it's a type that appears just as an ordinary type (meaning you can construct multiple instances), but all its fields are actually private and static and are exposed with non-static getters and setters. More of a scientific curiosity rather than a viable design solution, this one.
- Good understanding of C++
- Awareness of features of Modern C++ (11/14/17/...)
- Understanding of OOP (encapsulation, polymorphism, inheritance)
This course provides a comprehensive overview of Design Patterns in Modern C++ from a practical perspective. This course in particular covers patterns with the use of:
- The latest versions of the C++ programming language
- Use of modern programming approaches: dependency injection, use of coroutines, and more!
- Use of modern developer tools such as CLion and ReSharper C++
- Discussions of pattern variations and alternative approaches
This course provides an overview of all the Gang of Four (GoF) design patterns as outlined in their seminal book, together with modern-day variations, adjustments, discussions of intrinsic use of patterns in the language.
What are Design Patterns?
Design Patterns are reusable solutions to common programming problems. They were popularized with the 1994 book Design Patterns: Elements of Reusable Object-Oriented Software by Erich Gamma, John Vlissides, Ralph Johnson and Richard Helm (who are commonly known as a Gang of Four, hence the GoF acronym).
The appeal of design patterns is immortal: we see them in libraries, some of them are intrinsic in programming languages, and you probably use them on a daily basis even if you don't realize they are there.
What Patterns Does This Course Cover?
This course covers all the GoF design patterns. In fact, here's the full list of what is covered:
- SOLID Design Principles: Single Responsibility Principle, Open-Closed Principle, Liskov Substitution Principle, Interface Segregation Principle and Dependency Inversion Principle
- Creational Design Patterns: Builder, Factories (Factory Method and Abstract Factory), Prototype and Singleton
- Structrural Design Patterns: Adapter, Bridge, Composite, Decorator, Façade, Flyweight and Proxy
- Behavioral Design Patterns: Chain of Responsibility, Command, Interpreter, Iterator, Mediator, Memento, Null Object, Observer, State, Strategy, Template Method and Visitor
Who Is the Course For?
This course is for C++ developers who want to see not just textbook examples of design patterns, but also the different variations and tricks that can be applied to implement design patterns in a modern way.
This course is presented as a (very large) series of live demonstrations being done in JetBrains CLion. Most demos are single-file, so you can download the file attached to the lesson and run it in CLion, XCode or another IDE of your choice (or just on the command line).
This course does not use UML class diagrams; all of demos are live coding.
- Beginner and experienced C++ software developers
- Developers interested in implementations of design patterns
- Computer scientists