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The Rust Programming Language
book

The Rust Programming Language

by Steve Klabnik, Carol Nichols
July 2018
Intermediate to advanced content levelIntermediate to advanced
552 pages
13h 50m
English
No Starch Press
Content preview from The Rust Programming Language

6ENUMS AND PATTERN MATCHING

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In this chapter, we’ll look at enumerations, also referred to as enums. Enums allow you to define a type by enumerating its possible values. First, we’ll define and use an enum to show how an enum can encode meaning along with data. Next, we’ll explore a particularly useful enum, called Option, which expresses that a value can be either something or nothing. Then we’ll look at how pattern matching in the match expression makes it easy to run different code for different values of an enum. Finally, we’ll cover how the if let construct is another convenient and concise idiom available to you to handle enums in your code. ...

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Publisher Resources

ISBN: 9781492067665Errata Page