In this chapter you have learned how to use metaprogramming to generate functions and values at compile time instead of runtime. You also learned how to do this in a modern C++ way by using templates, constexpr, static_assert(), if constexpr and type traits. Moreover, with the constant string hashing, you also learned how to use compile time evaluation in a practical context. In the next chapter we will learn how to further expand our C++ toolbox for creating libraries by learning how to construct hidden proxy objects.
C++ High Performance
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C++ High Performance
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Overview of this book
C++ is a highly portable language and can be used to write both large-scale applications and performance-critical code. It has evolved over the last few years to become a modern and expressive language. This book will guide you through optimizing the performance of your C++ apps by allowing them to run faster and consume fewer resources on the device they're running on without compromising the readability of your code base.
The book begins by helping you measure and identify bottlenecks in a C++ code base. It then moves on by teaching you how to use modern C++ constructs and techniques. You'll see how this affects the way you write code. Next, you'll see the importance of data structure optimization and memory management, and how it can be used efficiently with respect to CPU caches. After that, you'll see how STL algorithm and composable Range V3 should be used to both achieve faster execution and more readable code, followed by how to use STL containers and how to write your own specialized iterators.
Moving on, you’ll get hands-on experience in making use of modern C++ metaprogramming and reflection to reduce boilerplate code as well as in working with proxy objects to perform optimizations under the hood. After that, you’ll learn concurrent programming and understand lock-free data structures. The book ends with an overview of parallel algorithms using STL execution policies, Boost Compute, and OpenCL to utilize both the CPU and the GPU.
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Current Title:
C++ High Performance
Table of Contents (13 chapters)
Preface
Free Chapter
A Brief Introduction to C++
Modern C++ Concepts
Measuring Performance
Data Structures
A Deeper Look at Iterators
STL Algorithms and Beyond
Memory Management
Metaprogramming and Compile-Time Evaluation
Proxy Objects and Lazy Evaluation
Concurrency
Parallel STL
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