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C++17 STL Cookbook

You're reading from C++17 STL Cookbook Discover the latest enhancements to functional programming and lambda expressions

Product type Paperback

Published in Jun 2017

Publisher Packt

ISBN-13 9781787120495

Length 532 pages

Edition 1st Edition

Languages

C++

Tools

STL

Concepts

Functional Programming

Author (1):

Jacek Galowicz

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Table of Contents (11) Chapters

Preface

1. The New C++17 Features FREE CHAPTER

2. STL Containers

3. Iterators

4. Lambda Expressions

5. STL Algorithm Basics

6. Advanced Use of STL Algorithms

7. Strings, Stream Classes, and Regular Expressions

8. Utility Classes

9. Parallelism and Concurrency

10. Filesystem

Implementing the Fourier transform formula with STL numeric algorithms

The Fourier transformation is a very important and famous formula in signal processing. It was invented nearly 200 years ago, but with computers, the number of use cases for it really skyrocketed. It is used in audio/image/video compression, audio filters, medical imaging devices, cell phone apps that identify music tracks while listening to them on the fly, and so on.

Because of the vastness of general numeric application scenarios (not only because of the Fourier transformation of course), the STL also tries to be useful in the context of numeric computation. The Fourier transformation is only one example among them but a tricky one too. The formula itself looks like the following:

The transformation it describes is basically a sum. Each element of the sum is the multiplication of a data point of the input signal vector, and the expression exp(-2 * i * ...). The maths behind this is a bit scary for everyone who does not...

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Authors (1)

Galowicz

Galowicz

Jacek Galowicz obtained his master of science in electrical engineering/computer engineering at RWTH Aachen University, Germany. While at university, he enjoyed working as a student assistant in teaching and research, and he participated in several scientific publications. During and after his studies, he worked as a freelancer and implemented applications as well as kernel drivers in C and C++, touching various areas, including 3D graphics programming, databases, network communication, and physics simulation. In recent years, he has been programming performance- and security-sensitive microkernel operating systems for Intel x86 virtualization at Intel and FireEye in Braunschweig, Germany. He has a strong passion for modern C++ implementations of low-level software, and he tries hard to combine high performance with an elegant coding style. Learning purely functional programming and Haskell in recent years triggered his drive to implement generic code with the aid of meta programming.

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