how-to-borrow-struct-field-in-rust.md

How to borrow struct field in Rust

// plain

Borrowing a struct field in Rust is done using the & operator. This operator creates a reference to the field, allowing it to be used without taking ownership of the struct.

Example:

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

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

    let borrowed_x = &point.x;

    println!("borrowed_x: {}", borrowed_x);
}

Output example

borrowed_x: 0

Code explanation

• & operator: creates a reference to the field
• let point = Point { x: 0, y: 0 };: creates a Point struct
• let borrowed_x = &point.x;: creates a reference to the x field of the Point struct
• println!("borrowed_x: {}", borrowed_x);: prints the value of the x field

Helpful links

• Rust Reference
• Rust Book - References and Borrowing

group: rust-borrow