rustHow to use struct as parameter in Rust

Structs can be used as parameters in Rust by passing them as references. This is done by using the & operator before the struct name. For example:

struct Point {
    x: i32,
    y: i32,
}

fn main() {
    let p = Point { x: 0, y: 0 };

    print_point(&p);
}

fn print_point(point: &Point) {
    println!("Point x: {}, y: {}", point.x, point.y);
}

Output example

Point x: 0, y: 0

Code explanation

• struct Point { x: i32, y: i32, }: This is the definition of a struct called Point with two fields, x and y, both of type i32.

• let p = Point { x: 0, y: 0 };: This creates an instance of the Point struct with x and y set to 0.

• print_point(&p);: This passes the p instance of Point to the print_point function as a reference.

• fn print_point(point: &Point) {: This is the definition of the print_point function, which takes a reference to a Point struct as a parameter.

• println!("Point x: {}, y: {}", point.x, point.y);: This prints out the x and y values of the Point struct passed as a parameter.

Helpful links

• Rust Structs
• Rust References and Borrowing

Edit this code on GitHub