From 25b5686dd2ab2e3d5a228a71e9631c50ea50fffe Mon Sep 17 00:00:00 2001 From: mo8it Date: Wed, 26 Jun 2024 14:47:57 +0200 Subject: options3 solution --- solutions/12_options/options3.rs | 27 ++++++++++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-) (limited to 'solutions') 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:?}"); +} -- cgit v1.2.3