RBE custom types structs activity 2

rustbyexample/custom_types/custom_types_structs.rs

@@ -24,6 +24,13 @@ fn rect_area(r: Rectangle) -> f32 {
     (r.top_left.x - r.bottom_right.x) * (r.top_left.y - r.bottom_right.y)
 }
 
+fn square(p: &Point, d: f32) -> Rectangle {
+    Rectangle {
+        top_left: Point { x: p.x + d, y: p.y },
+        bottom_right: Point { x: p.x, y: p.y + d },
+    }
+}
+
 fn main() {
     let name = String::from("Peter");
     let age = 27;
@@ -64,4 +71,9 @@ fn main() {
 
     println!("rect in {:?}", rect);
     println!("area of rect is {}", rect_area(rect));
+
+    let lower_left = Point { x: 4.1, y: 11.3 };
+    let d = 7.7f32;
+    let sq = square(&lower_left, d);
+    println!("sq from point={:?} of d={} is {:?}", lower_left, d, sq);
 }