Question

How to pass by reference to function in Rust

Answer 1

fn main() {
    let mut n:i32 = 1237;
     
    to_zero(&mut n); // pass by reference
     
    println!("{}", n);
}
 
fn to_zero(number:&mut i32) {
   *number =  0;
     
   println!("{}", number);
}
 
 
 
/*
run:
 
0
0
 
*/

 

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