Book Image

Hands-On Design Patterns with C++ (Second Edition) - Second Edition

By : Fedor G. Pikus
5 (1)
Book Image

Hands-On Design Patterns with C++ (Second Edition) - Second Edition

5 (1)
By: Fedor G. Pikus

Overview of this book

C++ is a general-purpose programming language designed for efficiency, performance, and flexibility. Design patterns are commonly accepted solutions to well-recognized design problems. In essence, they are a library of reusable components, only for software architecture, and not for a concrete implementation. This book helps you focus on the design patterns that naturally adapt to your needs, and on the patterns that uniquely benefit from the features of C++. Armed with the knowledge of these patterns, you’ll spend less time searching for solutions to common problems and tackle challenges with the solutions developed from experience. You’ll also explore that design patterns are a concise and efficient way to communicate, as patterns are a familiar and recognizable solution to a specific problem and can convey a considerable amount of information with a single line of code. By the end of this book, you’ll have a deep understanding of how to use design patterns to write maintainable, robust, and reusable software.
Table of Contents (26 chapters)
1
Part 1: Getting Started with C++ Features and Concepts
5
Part 2: Common C++ Idioms
10
Part 3: C++ Design Patterns
18
Part 4: Advanced C++ Design Patterns

The Curiously Recurring Template Pattern

We are already familiar with the concepts of inheritance, polymorphism, and virtual functions. A derived class inherits from the base class and customizes the behavior of the base class by overriding its virtual functions. All operations are done on an instance of the base class, polymorphically. When the base object is actually an instance of the derived class, the right customized overrides are called. The base class knows nothing about the derived class, which may not even have been written when the base class code was written and compiled. The Curiously Recurring Template Pattern (CRTP) turns this well-ordered picture on its head, and inside out.

The following topics will be covered in this chapter:

  • What is CRTP?
  • What is static polymorphism and how does it differ from dynamic polymorphism?
  • What are the downsides of virtual function calls, and why may it be preferable to resolve such calls at compile time?
  • What are...