options3 solution

1 files changed, 26 insertions, 1 deletions

diff --git a/solutions/12_options/options3.rs b/solutions/12_options/options3.rs
index 4e18198..0081eeb 100644
--- a/solutions/12_options/options3.rs
+++ b/solutions/12_options/options3.rs
@@ -1 +1,26 @@
-// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
+#[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:?}");
+}