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| -rw-r--r-- | src/doc/book/mutability.md | 8 |
1 files changed, 3 insertions, 5 deletions
diff --git a/src/doc/book/mutability.md b/src/doc/book/mutability.md index 71acb551e6e..6aad3c5f746 100644 --- a/src/doc/book/mutability.md +++ b/src/doc/book/mutability.md @@ -24,18 +24,16 @@ changed from one `i32` to another. [vb]: variable-bindings.html -If you want to change what the binding points to, you’ll need a [mutable reference][mr]: +You can also create a [reference][ref] to it, using `&x`, but if you want to use the reference to change it, you will need a mutable reference: ```rust let mut x = 5; let y = &mut x; ``` -[mr]: references-and-borrowing.html +[ref]: references-and-borrowing.html -`y` is an immutable binding to a mutable reference, which means that you can’t -bind `y` to something else (`y = &mut z`), but you can mutate the thing that’s -bound to `y` (`*y = 5`). A subtle distinction. +`y` is an immutable binding to a mutable reference, which means that you can’t bind 'y' to something else (`y = &mut z`), but `y` can be used to bind `x` to something else (`*y = 5`). A subtle distinction. Of course, if you need both: |