rustHow to borrow int in Rust

Rust provides the borrow keyword to borrow an int from a struct or enum. The borrow keyword creates a reference to the int that can be used to access the value without taking ownership.

Example code

struct MyStruct {
    my_int: i32,
}

fn main() {
    let my_struct = MyStruct { my_int: 5 };
    let my_int_ref = &my_struct.my_int;
    println!("my_int_ref = {}", my_int_ref);
}

Output example

my_int_ref = 5

Code explanation

• let my_struct = MyStruct { my_int: 5 };: creates a MyStruct instance with an int value of 5
• let my_int_ref = &my_struct.my_int;: creates a reference to the int value of my_struct using the & operator
• println!("my_int_ref = {}", my_int_ref);: prints the value of the int reference

Helpful links

• Rust Reference
• Rust Borrowing

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