Book Image

C++ High Performance - Second Edition

By : Björn Andrist, Viktor Sehr
5 (2)
Book Image

C++ High Performance - Second Edition

5 (2)
By: Björn Andrist, Viktor Sehr

Overview of this book

C++ High Performance, Second Edition guides you through optimizing the performance of your C++ apps. This allows them to run faster and consume fewer resources on the device they're running on without compromising the readability of your codebase. The book begins by introducing the C++ language and some of its modern concepts in brief. Once you are familiar with the fundamentals, you will be ready to measure, identify, and eradicate bottlenecks in your C++ codebase. By following this process, you will gradually improve your style of writing code. The book then explores data structure optimization, memory management, and how it can be used efficiently concerning CPU caches. After laying the foundation, the book trains you to leverage algorithms, ranges, and containers from the standard library to achieve faster execution, write readable code, and use customized iterators. It provides hands-on examples of C++ metaprogramming, coroutines, reflection to reduce boilerplate code, proxy objects to perform optimizations under the hood, concurrent programming, and lock-free data structures. The book concludes with an overview of parallel algorithms. By the end of this book, you will have the ability to use every tool as needed to boost the efficiency of your C++ projects.
Table of Contents (17 chapters)
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Essential C++ Techniques

In this chapter, we will take an in-depth look at some fundamental C++ techniques, such as move semantics, error handling, and lambda expressions, that will be used throughout this book. Some of these concepts still confuse even experienced C++ programmers and therefore we will look into both their use cases and how they work under the hood.

This chapter will cover the following topics:

  • Automatic type deduction and how to use the auto keyword when declaring functions and variables.
  • Move semantics and the rule of five and rule of zero.
  • Error handling and contracts. Although these topics don't present anything that can be considered modern C++, both exceptions and contracts are highly debated areas within C++ today.
  • Creating function objects using lambda expressions, one of the most important features from C++11.

Let's begin by taking a look at automatic type deduction.