src/doc/book/listings/ch04-understanding-ownership/no-listing-13-reference-scope-ends/src/main.rs

   1 fn main() {
   2     // ANCHOR: here
   3     let mut s = String::from("hello");
   4
   5     let r1 = &s; // no problem
   6     let r2 = &s; // no problem
   7     println!("{} and {}", r1, r2);
   8     // variables r1 and r2 will not be used after this point
   9
  10     let r3 = &mut s; // no problem
  11     println!("{}", r3);
  12     // ANCHOR_END: here
  13 }