Book Image

Rust Standard Library Cookbook

By : Jan Hohenheim, Daniel Durante
Book Image

Rust Standard Library Cookbook

By: Jan Hohenheim, Daniel Durante

Overview of this book

Mozilla’s Rust is gaining much attention with amazing features and a powerful library. This book will take you through varied recipes to teach you how to leverage the Standard library to implement efficient solutions. The book begins with a brief look at the basic modules of the Standard library and collections. From here, the recipes will cover packages that support file/directory handling and interaction through parsing. You will learn about packages related to advanced data structures, error handling, and networking. You will also learn to work with futures and experimental nightly features. The book also covers the most relevant external crates in Rust. By the end of the book, you will be proficient at using the Rust Standard library.
Table of Contents (12 chapters)

How it works...

rayon implements the trait ParallelIterator for every type that implements its standard library equivalent Iterator, which we got to know in Chapter 2, Working with Collections; Access Collections as iterators. In fact, you can use all the knowledge from said recipe again here. The methods provided by the ParallelIterator trait are nearly the same as the ones provided by Iterator, so in virtually all cases where you notice an iterator operation taking too long and bottlenecking you, you can simply replace .iter() with .par_iter()[10]. Similarly, for moving iterators, you can use .into_par_iter() instead of .into_iter().

rayon handles all the tedious work for you, as it automatically distributes the work evenly between all of your available cores. Just keep in mind that despite this magic, you're still dealing with parallelism here, so you have no guarantees about the order in which the items in your iterator are going to be handled, as evidenced by line...