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C++ High Performance

C++ High Performance

By : Björn Andrist, Sehr
4.4 (24)
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C++ High Performance

C++ High Performance

4.4 (24)
By: Björn Andrist, 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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15
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16
Index

Features of the standard algorithms

To get a better understanding of the standard algorithms, it's good to know a bit about the features and common patterns used by all algorithms in the <algorithm> header. As already stated, the algorithms under the std and std::ranges namespaces have a lot in common. We will start here with the general principles that are true for both the std algorithms and the constrained algorithms under std::range. Then, in the next section, we will move on to discuss the features that are specific to the constrained algorithms found under std::ranges.

Algorithms do not change the size of the container

Functions from <algorithm> can only modify the elements in a specified range; elements are never added or deleted from the underlying container. Therefore, these functions never alter the size of the container that they operate on.

For example, std::remove() or std::unique() do not actually remove elements from a container (despite...

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