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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Type traits

When doing template metaprogramming, you may often find yourself in situations where you need information about the types you are dealing with at compile time. When writing regular (non-generic) C++ code, we work with concrete types that we have complete knowledge about, but this is not the case when writing a template; the concrete types are not determined until a template is being instantiated by the compiler. Type traits let us extract information about the types our templates are dealing with in order to generate efficient and correct C++ code.

In order to extract information about template types, the standard library provides a type traits library, which is available in the <type_traits> header. All type traits are evaluated at compile time.

Type trait categories

There are two categories of type traits:

  • Type traits that return information about a type as a boolean or an integer value.
  • Type traits that return a new type. These type...