Book Image

Rust Programming Cookbook

By : Claus Matzinger
Book Image

Rust Programming Cookbook

By: Claus Matzinger

Overview of this book

Rust 2018, Rust's first major milestone since version 1.0, brings more advancement in the Rust language. The Rust Programming Cookbook is a practical guide to help you overcome challenges when writing Rust code. This Rust book covers recipes for configuring Rust for different environments and architectural designs, and provides solutions to practical problems. It will also take you through Rust's core concepts, enabling you to create efficient, high-performance applications that use features such as zero-cost abstractions and improved memory management. As you progress, you'll delve into more advanced topics, including channels and actors, for building scalable, production-grade applications, and even get to grips with error handling, macros, and modularization to write maintainable code. You will then learn how to overcome common roadblocks when using Rust for systems programming, IoT, web development, and network programming. Finally, you'll discover what Rust 2018 has to offer for embedded programmers. By the end of the book, you'll have learned how to build fast and safe applications and services using Rust.
Table of Contents (12 chapters)

Filtering and transforming sequences efficiently

While in the previous recipe we discussed implementing a custom iterator, it's now time to make use of the functions they provide. Iterators can transform, filter, reduce, or simply convert the underlying elements in a single go, thereby making it a very efficient endeavor.

Getting ready

First, create a new project using cargo new iteration --lib and add the following to the newly created Cargo.toml file in the project's directory:

[dev-dependencies]
rand = "^0.5"

This adds a dependency to the rand (https://github.com/rust-random/rand) crate to the project, which will be installed upon running cargo test the first time. Open the entire project (or the src...