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Learning Rust

You're reading from   Learning Rust A comprehensive guide to writing Rust applications

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Product type Paperback
Published in Nov 2017
Publisher Packt
ISBN-13 9781785884306
Length 308 pages
Edition 1st Edition
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Author (1):
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Vesa Kaihlavirta Vesa Kaihlavirta
Author Profile Icon Vesa Kaihlavirta
Vesa Kaihlavirta
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Table of Contents (15) Chapters Close

Preface 1. Introducing and Installing Rust FREE CHAPTER 2. Variables 3. Input and Output 4. Conditions, Recursion, and Loops 5. Remember, Remember 6. Creating Your Own Rust Applications 7. Matching and Structures 8. The Rust Application Lifetime 9. Introducing Generics, Impl, and Traits 10. Creating Your Own Crate 11. Concurrency in Rust 12. Now It's Your Turn! 13. The Standard Library 14. Foreign Function Interfaces

Structs 101


For this chapter, I am going to ask you to imagine the following scenario. I have a house. My house has a certain number of rooms and each room has a name. Each room has one or more doors and windows and a carpet (with a color), and the rooms have a width and length. We will use structs and enums to model all this.

Structs in Rust are very common; they are used in many facets of the language and are useful to understand and use. In terms of the house example, we'll see how useful they can be.

Variables, variables everywhere

Let's look at the house and create some variables to describe it, as well as types. Start with the house, which can be considered the most basic of objects. We will need only to model the number of rooms it has:

number_of_rooms: i32 

Let's consider rooms next.

Each room will have a number of properties. Is it upstairs or downstairs, assuming it's a two-level house? Number of doors. Number of windows. Types of windows. Do the window have curtains? Wood or carpet...

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