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rustlings/solutions/12_options/options3.rs
2024-06-26 14:47:57 +02:00

26 lines
678 B
Rust

#[derive(Debug)]
struct Point {
x: i32,
y: i32,
}
fn main() {
let optional_point = Some(Point { x: 100, y: 200 });
// Solution 1: Matching over the `Option` (not `&Option`) but without moving
// out of the `Some` variant.
match optional_point {
Some(ref p) => println!("Co-ordinates are {},{}", p.x, p.y),
// ^^^ added
_ => panic!("No match!"),
}
// Solution 2: Matching over a reference (`&Option`) by added `&` before
// `optional_point`.
match &optional_point {
Some(p) => println!("Co-ordinates are {},{}", p.x, p.y),
_ => panic!("No match!"),
}
println!("{optional_point:?}");
}