chapter 5 done

rectangles/src/main.rs

@@ -13,6 +13,15 @@ impl Rectangle {
     }
 }
 
+impl Rectangle {
+    fn square(size: u32) -> Self {
+        Self {
+            width: size,
+            height: size,
+        }
+    }
+}
+
 
 
 
@@ -29,5 +38,9 @@ fn main() {
 
     println!("Can rect1 hold rect2? {}", rect1.can_hold(&rect2));
     println!("Can rect1 hold rect3? {}", rect1.can_hold(&rect3));
+
+    let sq = Rectangle::square(5);
+    println!("r: {:?}", sq);
+
 }