///
/// `Ord` requires that the type also be `PartialOrd` and `Eq` (which requires `PartialEq`).
///
-/// Then you must define an implementation for `cmp`. You may find it useful to use
-/// `cmp` on your type's fields.
+/// Then you must define an implementation for `cmp()`. You may find it useful to use
+/// `cmp()` on your type's fields.
///
/// Here's an example where you want to sort people by height only, disregarding `id`
/// and `name`:
///
/// `PartialOrd` requires your type to be `PartialEq`.
///
-/// If your type is `Ord`, you can implement `partial_cmp` by using `cmp`:
+/// If your type is `Ord`, you can implement `partial_cmp()` by using `cmp()`:
///
/// ```
/// impl PartialOrd for Person {
/// }
/// ```
///
-/// You may also find it useful to use `partial_cmp` on your type`s fields. Here
+/// You may also find it useful to use `partial_cmp()` on your type`s fields. Here
/// is an example of `Person` types who have a floating-point `height` field that
/// is the only field to be used for sorting:
///