diff options
| -rw-r--r-- | library/core/src/slice/mod.rs | 27 |
1 files changed, 21 insertions, 6 deletions
diff --git a/library/core/src/slice/mod.rs b/library/core/src/slice/mod.rs index 1d8ac6aa043..c948337ba6c 100644 --- a/library/core/src/slice/mod.rs +++ b/library/core/src/slice/mod.rs @@ -3016,8 +3016,13 @@ impl<T> [T] { /// ``` /// let mut v = [-5i32, 4, 2, -3, 1]; /// - /// // Find the median - /// v.select_nth_unstable(2); + /// // Find the items less than or equal to the median, the median, and greater than or equal to + /// // the median. + /// let (lesser, median, greater) = v.select_nth_unstable(2); + /// + /// assert!(lesser == [-3, -5] || lesser == [-5, -3]); + /// assert_eq!(median, &mut 1); + /// assert!(greater == [4, 2] || greater == [2, 4]); /// /// // We are only guaranteed the slice will be one of the following, based on the way we sort /// // about the specified index. @@ -3067,8 +3072,13 @@ impl<T> [T] { /// ``` /// let mut v = [-5i32, 4, 2, -3, 1]; /// - /// // Find the median as if the slice were sorted in descending order. - /// v.select_nth_unstable_by(2, |a, b| b.cmp(a)); + /// // Find the items less than or equal to the median, the median, and greater than or equal to + /// // the median as if the slice were sorted in descending order. + /// let (lesser, median, greater) = v.select_nth_unstable_by(2, |a, b| b.cmp(a)); + /// + /// assert!(lesser == [4, 2] || lesser == [2, 4]); + /// assert_eq!(median, &mut 1); + /// assert!(greater == [-3, -5] || greater == [-5, -3]); /// /// // We are only guaranteed the slice will be one of the following, based on the way we sort /// // about the specified index. @@ -3122,8 +3132,13 @@ impl<T> [T] { /// ``` /// let mut v = [-5i32, 4, 1, -3, 2]; /// - /// // Return the median as if the array were sorted according to absolute value. - /// v.select_nth_unstable_by_key(2, |a| a.abs()); + /// // Find the items less than or equal to the median, the median, and greater than or equal to + /// // the median as if the slice were sorted according to absolute value. + /// let (lesser, median, greater) = v.select_nth_unstable_by_key(2, |a| a.abs()); + /// + /// assert!(lesser == [1, 2] || lesser == [2, 1]); + /// assert_eq!(median, &mut -3); + /// assert!(greater == [4, -5] || greater == [-5, 4]); /// /// // We are only guaranteed the slice will be one of the following, based on the way we sort /// // about the specified index. |