#![allow(unused_variables)] #![allow(unused_assignments)] #![allow(dead_code)] #![deny(unreachable_code)] fn a() { loop { return; } println!("I am dead."); //~^ ERROR unreachable statement } fn b() { loop { break; } println!("I am not dead."); } fn c() { loop { return; } println!("I am dead."); //~^ ERROR unreachable statement } fn d() { 'outer: loop { loop { break 'outer; } } println!("I am not dead."); } fn e() { loop { 'middle: loop { loop { break 'middle; } } } println!("I am dead."); //~^ ERROR unreachable statement } fn main() { }