RefCell::borrow_mut example should demonstrate mut

2016-01-25 17:07:55 -05:00 · 2016-01-25 17:07:55 -05:00 · a19353643b
commit a19353643b
parent 62a3a6ecc0
1 changed files with 3 additions and 1 deletions
--- a/src/libcore/cell.rs
+++ b/src/libcore/cell.rs
@ -414,7 +414,9 @@ impl<T: ?Sized> RefCell<T> {
    ///
    /// let c = RefCell::new(5);
    ///
-    /// let borrowed_five = c.borrow_mut();
+    /// *c.borrow_mut() = 7;
+    ///
+    /// assert_eq!(*c.borrow(), 7);
    /// ```
    ///
    /// An example of panic: