[RUST] labeling nested loops

labeled_loop.rs

/// Taken from "Programming Rust" by Jim Blandy and Jason Orendorff

// A loop can be labeled with a lifetime. In the following example, 'search: is a label for
// the outer for loop. Thus break 'search exits that loop, not the inner loop.

'search:
for room in apartment {
  for spot in room.hiding_spots() {
    if spot.contains(keys) {
      println!("Your keys are {} in the {}.", spot, room);
      break 'search;
    }
  }
}

// Labels can also be used with continue .