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──┬─────────────────────────────────────────────────────────────────────────────
│ struct Rectangle {
│ width: u32,
│ height: u32,
│ }
│
_ │ fn main() {
│ let rect1 = Rectangle { width: 30, height: 50 };
│
│ println!(
~ │ "The perimeter of the rectangle is {} pixels.",
~ │ perimeter(&rect1)
│ );
+ │ println!(r#"This line contains invalid utf8: "�����"#;
│ }
│
│ fn area(rectangle: &Rectangle) -> u32 {
│ rectangle.width * rectangle.height
│ }
+ │
+ │ fn perimeter(rectangle: &Rectangle) -> u32 {
+ │ (rectangle.width + rectangle.height) * 2
+ │ }
──┴─────────────────────────────────────────────────────────────────────────────
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