Correct failing book test

rust-lang · Aug 22, 2016 · 3da5f93 · 3da5f93
1 parent a5a5c10
commit 3da5f93
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/doc/book/traits.md b/src/doc/book/traits.md
@@ -52,6 +52,12 @@ implementing this trait passed as a parameter. `Self`, `&Self` or `&mut Self`
 may be used depending on the level of ownership required.
 
 ```rust
+struct Circle {
+    x: f64,
+    y: f64,
+    radius: f64,
+}
+
 trait HasArea {
     fn area(&self) -> f64;