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

Technical requirements

The Google Benchmark library: https://github.com/google/benchmark

Example code: https://github.com/PacktPublishing/Hands-On-Design-Patterns-with-CPP-Second-Edition/tree/master/Chapter08

Wrapping your head around CRTP

CRTP was first introduced, under this name, by James Coplien in 1995, in his article in C++ Report. It is a particular form of a more general bounded polymorphism (Peter S. Canning et al., F-bounded polymorphism for object-oriented programming, Conference on Functional Programming Languages and Computer Architecture, 1989). While not a general replacement for virtual functions, it provides the C++ programmer with a similar tool that, under the right circumstances, offers several advantages.

What is wrong with a virtual function?

Before we can talk about a better alternative to a virtual function, we should consider why we would want to have an alternative at all. What is not to like about virtual functions?

The problem is the performance...