The Ultimate Guide to Rust Programming/

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Exercises

Exercises

We'll cover the following...

Exercise 1

Modify this program to get rid of all let statements. Remember: struct expressions are just another kind of expression!

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struct Fruit {
    apples: i32,
    bananas: i32,
}
fn increase_fruit(fruit: Fruit) -> Fruit {
    let fruit = Fruit {
        apples: fruit.apples * 2,
        bananas: fruit.bananas * 3,
    };
    fruit
}
fn new_fruit() -> Fruit {
    let fruit = Fruit {
        apples: 10,
        bananas: 5,
    };
    fruit
}
fn print_fruit(fruit: Fruit) {
    println!("You have {} apples and {} bananas", fruit.apples, fruit.bananas);
}
fn main() {
    let fruit = new_fruit();
    let fruit = increase_fruit(fruit);
    print_fruit(fruit);
}

Exercise 2

We originally wanted to ...