Question

How to pass by value to function in Rust

Answer 1

fn main() {
   let n:i32 = 987;
    
   to_zero(n); // pass by value
    
   println!("{}", n);
}
 
fn to_zero(mut number: i32) {
   number = number * 0;
    
   println!("{}", number);
}
  
  
  
/*
run:
  
0
987
 
*/

 

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