option-ext

Introduction

This crate extends Option with additional methods, currently:

• contains

Its sister crate is result-ext, which extends Result.

Requirements

Rust 1.0 or newer.

Usage

Dependency

Add the library as a dependency to your project by inserting

option-ext = "0.1.0"

into the [dependencies] section of your Cargo.toml file.

Example

use self::option_ext;

fn example() {
    let x: Option<u32> = Some(2);
    assert_eq!(x.contains(&2), true);

    let x: Option<u32> = Some(3);
    assert_eq!(x.contains(&2), false);

    let x: Option<u32> = None;
    assert_eq!(x.contains(&2), false);
}