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

Summary

We have just introduced a design pattern aimed solely at improved performance. Efficiency is an important consideration for the C++ language; thus, the C++ community developed patterns to address the most common inefficiencies. Repeated or wasteful memory allocation is perhaps the most common of all. The design pattern we have just seen - local buffer optimization - is a powerful tool that can greatly reduce such allocations. We have seen how it can be applied to compact data structures, as well as to store small objects, such as callables. We have also reviewed the possible downsides of using this pattern.

With the next chapter, Chapter 11, ScopeGuard, we move on to study more complex patterns that address broader design issues. The idioms we have learned so far are often used in the implementation of these patterns.