You're reading from Hands-On Design Patterns with C++ Solve common C++ problems with modern design patterns and build robust applications

Product type Paperback

Published in Jul 2023

Publisher Packt

ISBN-13 9781804611555

Length 626 pages

Edition 2nd Edition

Languages

C++

Concepts

Design Patterns

Author (1):

Fedor G. Pikus

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Table of Contents (26) Chapters

Preface

1. Part 1: Getting Started with C++ Features and Concepts

2. Chapter 1: An Introduction to Inheritance and Polymorphism FREE CHAPTER

3. Chapter 2: Class and Function Templates

4. Chapter 3: Memory and Ownership

5. Part 2: Common C++ Idioms

6. Chapter 4: Swap – from Simple to Subtle

7. Chapter 5: A Comprehensive Look at RAII

8. Chapter 6: Understanding Type Erasure

9. Chapter 7: SFINAE, Concepts, and Overload Resolution Management

10. Part 3: C++ Design Patterns

11. Chapter 8: The Curiously Recurring Template Pattern

12. Chapter 9: Named Arguments, Method Chaining, and the Builder Pattern

13. Chapter 10: Local Buffer Optimization

14. Chapter 11: ScopeGuard

15. Chapter 12: Friend Factory

16. Chapter 13: Virtual Constructors and Factories

17. Chapter 14: The Template Method Pattern and the Non-Virtual Idiom

18. Part 4: Advanced C++ Design Patterns

19. Chapter 15: Policy-Based Design

20. Chapter 16: Adapters and Decorators

21. Chapter 17: The Visitor Pattern and Multiple Dispatch

22. Chapter 18: Patterns for Concurrency

23. Assessments

24. Index

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A Comprehensive Look at RAII

Resource management is probably the second most frequent thing a program does, after computing. But just because it’s frequently done does not mean it’s visible—some languages hide most, or all, resource management from the user. And just because it is hidden, does not mean it’s not there.

Every program needs to use some memory, and memory is a resource. A program would be of no use if it never interacted with the outside world in some way, at least to print the result, and input and output channels (files, sockets, and so on) are resources.

In this chapter, we will start by answering the following questions:

What is considered a resource in a C++ program?
What are the key concerns for managing resources in C++?

Then, we will introduce Resource Acquisition is Initialization (RAII) and explain how it helps in efficient resource management in C++ by answering these questions: