rustHow to copy struct in Rust

Copying a struct in Rust is done using the clone() method. This method creates a deep copy of the struct, meaning that all fields are copied as well.

Example

#[derive(Clone, Debug)]
struct Point {
    x: i32,
    y: i32,
}

fn main() {
    let p1 = Point { x: 1, y: 2 };
    let p2 = p1.clone();
    println!("p1: {:?}", p1);
    println!("p2: {:?}", p2);
}

Output example

p1: Point { x: 1, y: 2 }
p2: Point { x: 1, y: 2 }

Code explanation

• #[derive(Clone, Debug)]: This line is necessary for the clone() method to work. It derives the Clone and Debug traits for the Point struct.
• let p1 = Point { x: 1, y: 2 };: This line creates a Point struct with the fields x and y set to 1 and 2 respectively.
• let p2 = p1.clone();: This line creates a deep copy of the Point struct p1 and stores it in p2.
• println!("p1: {:?}", p1);: This line prints the Point struct p1 to the console.
• println!("p2: {:?}", p2);: This line prints the Point struct p2 to the console.

Helpful links

• Rust Documentation - Structs
• Rust Documentation - Traits
• Rust Documentation - Cloning

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