Book Image

C++17 STL Cookbook

By : Jacek Galowicz
Book Image

C++17 STL Cookbook

By: Jacek Galowicz

Overview of this book

C++ has come a long way and is in use in every area of the industry. Fast, efficient, and flexible, it is used to solve many problems. The upcoming version of C++ will see programmers change the way they code. If you want to grasp the practical usefulness of the C++17 STL in order to write smarter, fully portable code, then this book is for you. Beginning with new language features, this book will help you understand the language’s mechanics and library features, and offers insight into how they work. Unlike other books, ours takes an implementation-specific, problem-solution approach that will help you quickly overcome hurdles. You will learn the core STL concepts, such as containers, algorithms, utility classes, lambda expressions, iterators, and more, while working on practical real-world recipes. These recipes will help you get the most from the STL and show you how to program in a better way. By the end of the book, you will be up to date with the latest C++17 features and save time and effort while solving tasks elegantly using the STL.
Table of Contents (18 chapters)
Title Page
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
Index

Building our own algorithm - split


In some situations, the existing STL algorithms are not enough. But nothing hinders us from implementing our own. Before solving a specific problem, we should think about it firmly in order to realize that many problems can be solved in generic ways. If we regularly pile up some new library code while solving our own problems, then we are also helping our fellow programmers when they have similar problems to solve. Key is to know when it is generic enough and when not to go for more genericity than needed--else we end up with a new general purpose language.

In this recipe, we are implementing an algorithm, which we will call split. It can split any range of items at each occurrence of a specific value, and it copies the chunks that result from that into an output range.

How to do it...

In this section, we are going to implement our own STL-like algorithm called split, and then we check it out by splitting an example string:

  1. First things first, we include some...