Guessing stuff with a shadowed var

rustbook/guessing_game/src/main.rs

@@ -1,5 +1,6 @@
 extern crate rand;
 
+use std::cmp::Ordering;
 use std::io;
 use rand::Rng;
 
@@ -17,5 +18,14 @@ fn main() {
     io::stdin().read_line(&mut guess)
         .expect("Failed to read line");
 
+    let guess: u32 = guess.trim().parse()
+        .expect("Please type a number!");
+
     println!("You guessed: {}", guess);
+
+    match guess.cmp(&secret_number) {
+        Ordering::Less => println!("Too small!"),
+        Ordering::Greater => println!("Too big!"),
+        Ordering::Equal => println!("You win!"),
+    }
 }