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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Views in the standard library

So far in this chapter, we have been talking about views from the Ranges library. As was described earlier, these view types need to be constructed in constant time and also have constant-time copy, move, and assignment operators. However, in C++, we have talked about view classes before the Ranges library was added to C++20. These view classes are non-owning types, just like std::ranges::view, but without the complexity guarantees.

In this section, we will begin by exploring the views from the Ranges library that are associated with the std::ranges::view concept, and then move on to std::string_view and std::span, which are not associated with std::ranges::view.

Range views

There are already many views in the Ranges library, and I think we will see even more of them in future versions of C++. This section will provide a quick overview of some of the available views and also put them in different categories based on what they do.