Question

How to pass array by value to function in Rust

Answer 1

fn main() {
   let arr = [3, 9, 0, 2];
   
   f(arr); // pass array by value

   print!("main(): {:?}", arr);
}

fn f(mut arr:[i32; 4]) {
    for i in 0..4 {
        arr[i] = 0;
    }
    
    println!("f() {:?}",arr);
}




/*
run:

f() [0, 0, 0, 0]
main(): [3, 9, 0, 2]

*/

 

70+ SQL courses for beginners and professionals