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RBE custom types structs activity 1

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This commit is contained in:
Dan Buch 2021-09-11 13:52:45 -04:00
parent 013a8faa2f
commit c57baae2cc
Signed by: meatballhat
GPG Key ID: 9685130D8B763EA7
1 changed files with 11 additions and 3 deletions
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14
rustbyexample/custom_types/custom_types_structs.rs
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@ -8,17 +8,22 @@ struct Unit;
struct Pair(i32, f32); struct Pair(i32, f32);
#[derive(Debug)]
struct Point { struct Point {
x: f32, x: f32,
y: f32, y: f32,
} }
#[allow(dead_code)] #[derive(Debug)]
struct Rectangle { struct Rectangle {
top_left: Point, top_left: Point,
bottom_right: Point, bottom_right: Point,
} }
fn rect_area(r: Rectangle) -> f32 {
(r.top_left.x - r.bottom_right.x) * (r.top_left.y - r.bottom_right.y)
}
fn main() { fn main() {
let name = String::from("Peter"); let name = String::from("Peter");
let age = 27; let age = 27;
@ -30,7 +35,7 @@ fn main() {
println!("point coordinates: ({}, {})", point.x, point.y); println!("point coordinates: ({}, {})", point.x, point.y);
let bottom_right = Point { x: 5.2, ..point }; let bottom_right = Point { x: 5.2, y: 0.2 };
println!("second point: ({}, {})", bottom_right.x, bottom_right.y); println!("second point: ({}, {})", bottom_right.x, bottom_right.y);
@ -39,7 +44,7 @@ fn main() {
y: top_edge, y: top_edge,
} = point; } = point;
let _rectangle = Rectangle { let rect = Rectangle {
top_left: Point { top_left: Point {
x: left_edge, x: left_edge,
y: top_edge, y: top_edge,
@ -56,4 +61,7 @@ fn main() {
let Pair(integer, decimal) = pair; let Pair(integer, decimal) = pair;
println!("pair contains {:?} and {:?}", integer, decimal); println!("pair contains {:?} and {:?}", integer, decimal);
println!("rect in {:?}", rect);
println!("area of rect is {}", rect_area(rect));
} }