#![allow(unreachable_code)]


fn main() {
    println!("{:?}", {
        let num = 5; let r1 = &num as *const i32; let r2 = &mut num as *mut i32;  unsafe { println!("r1 is: {}", *r1); println!("r2 is: {}", *r2); }
    });
}


/* ~~~~=== stderr ===~~~~
   Compiling playground v0.0.1 (/playground)
error[E0596]: cannot borrow `num` as mutable, as it is not declared as mutable
 --> src/main.rs:6:60
  |
6 |         let num = 5; let r1 = &num as *const i32; let r2 = &mut num as *mut i32;  unsafe { println!("r1 is: {}", *r1); println!("r2 is: {}", *r2); }
  |             ---                                            ^^^^^^^^ cannot borrow as mutable
  |             |
  |             help: consider changing this to be mutable: `mut num`

error: aborting due to previous error

For more information about this error, try `rustc --explain E0596`.
error: Could not compile `playground`.

To learn more, run the command again with --verbose.

*/

/* ~~~~=== stdout ===~~~~

*/