()
| 164 | } |
| 165 | |
| 166 | fn iter() { |
| 167 | let mut d = Deque::new(4); |
| 168 | let _r1 = d.add_front(1); |
| 169 | let _r2 = d.add_front(2); |
| 170 | let _r3 = d.add_rear(3); |
| 171 | let _r4 = d.add_rear(4); |
| 172 | |
| 173 | let sum1 = d.iter().sum::<i32>(); |
| 174 | let mut addend = 0; |
| 175 | for item in d.iter_mut() { |
| 176 | *item += 1; |
| 177 | addend += 1; |
| 178 | } |
| 179 | let sum2 = d.iter().sum::<i32>(); |
| 180 | println!("{sum1} + {addend} = {sum2}"); |
| 181 | |
| 182 | assert_eq!(14, d.into_iter().sum::<i32>()); |
| 183 | } |
| 184 | } |