Backport changes to ch 9 and 10

listings/ch09-error-handling/listing-09-13/src/lib.rs

@@ -0,0 +1,17 @@
+pub struct Guess {
+    value: i32,
+}
+
+impl Guess {
+    pub fn new(value: i32) -> Guess {
+        if value < 1 || value > 100 {
+            panic!("Guess value must be between 1 and 100, got {value}.");
+        }
+
+        Guess { value }
+    }
+
+    pub fn value(&self) -> i32 {
+        self.value
+    }
+}

listings/ch09-error-handling/listing-09-13/src/main.rs

@@ -1,27 +1,8 @@
+use guessing_game::Guess;
 use rand::Rng;
 use std::cmp::Ordering;
 use std::io;
 
-// ANCHOR: here
-pub struct Guess {
-    value: i32,
-}
-
-impl Guess {
-    pub fn new(value: i32) -> Guess {
-        if value < 1 || value > 100 {
-            panic!("Guess value must be between 1 and 100, got {value}.");
-        }
-
-        Guess { value }
-    }
-
-    pub fn value(&self) -> i32 {
-        self.value
-    }
-}
-// ANCHOR_END: here
-
 fn main() {
     println!("Guess the number!");