rustHow to change box value in Rust

Changing the value of a box in Rust is done using the * operator. This operator dereferences the box, allowing you to access the value stored inside.

let mut x = Box::new(5);
*x = 10;
println!("{}", x);

Output:

10

The code above creates a box with the value 5 and then dereferences it using the * operator. This allows us to change the value stored inside the box to 10. Finally, we print out the new value of the box.

Code parts:

1. let mut x = Box::new(5); - creates a box with the value 5
2. *x = 10; - dereferences the box and assigns the value 10 to it
3. println!("{}", x); - prints out the new value of the box

Helpful links

• Rust Documentation - Box
• Rust Documentation - Dereferencing

Edit this code on GitHub