devela::data

Struct Sort

Source 
#[repr(transparent)]
pub struct Sort<T>(pub T);
Expand description

Provides sorting methods for arrays and slices of T, some of them const.

It implements the following methods for sorting exclusive slices: bubble, counting, counting_buf, insertion, merge, quick_lomuto, quick_hoare, quick_3way, quick_selection, quick_shaker.

§Features

When the corresponding feature _sort_f[32|64] or _sort_[iu][8|16|32|64|128] is enabled, It implements the following const methods for sorting copied arrays of primitives: bubble_array, insertion_array, selection_array. In the case of floating-point primitives it uses total ordering.

§Examples

Sort copied arrays of primitives:

let mut arr = [4i32, 7, -5, 1, -13, 0]; // signed primitives
assert_eq![Sort(arr).bubble_array(),    [-13, -5, 0, 1, 4, 7]];
assert_eq![Sort(arr).insertion_array(), [-13, -5, 0, 1, 4, 7]];
assert_eq![Sort(arr).selection_array(), [-13, -5, 0, 1, 4, 7]];

let mut arr = [4u32, 7, 5, 1, 13, 0]; // unsigned primitives
assert_eq![Sort(arr).bubble_array(),    [0, 1, 4, 5, 7, 13]];
assert_eq![Sort(arr).insertion_array(), [0, 1, 4, 5, 7, 13]];
assert_eq![Sort(arr).selection_array(), [0, 1, 4, 5, 7, 13]];

let mut arr = [4.01f32, 7.9, -5.4, 1.0, 0.0, -0.0]; // floating-point primitives
assert_eq![Sort(arr).bubble_array(),    [-5.4, -0.0, 0.0, 1.0, 4.01, 7.9]];
assert_eq![Sort(arr).insertion_array(), [-5.4, -0.0, 0.0, 1.0, 4.01, 7.9]];
assert_eq![Sort(arr).selection_array(), [-5.4, -0.0, 0.0, 1.0, 4.01, 7.9]];

§Performance

The _array suffixed methods calls the cswap macro using the xor swap algorithm, except for the floting-point version which uses a temporary variable.

Tuple Fields§

§0: T

Implementations§

Source§

impl<T: Ord> Sort<&mut [T]>

Source

pub fn bubble(self)

Sorts a slice using bubble sort.

§Examples
let mut data = [4, 7, -5, 1, -13, 0];
Sort(&mut data[..]).bubble();
assert_eq![data, [-13, -5, 0, 1, 4, 7]];
Source

pub fn counting(self) -> Vec<usize> ⓘ
where T: Clone,

Available on crate feature alloc only.

Sorts a slice using counting sort, and returns the ordered frequencies.

Counting sort is particularly efficient when the range of input values is small compared to the number of elements to be sorted.

§Examples
let mut data = [4, 64, 4, 2, 4, 8, 8, 4, 8, 4, 2, 8, 64, 4, 8, 4, 2];
let freq = Sort(&mut data[..]).counting();
assert_eq![data, [2, 2, 2, 4, 4, 4, 4, 4, 4, 4, 8, 8, 8, 8, 8, 64, 64]];
assert_eq![freq, [3, 7, 5, 2]];
Source

pub fn counting_buf(self, freq: &mut [T], values: &[T]) -> Option<()> ⓘ
where T: Clone + TryInto<usize> + TryFrom<usize>,

Sorts a slice using counting sort, and writes the frequencies, without allocating.

Counting sort is particularly efficient when the range of input values is small compared to the number of elements to be sorted.

This implementation makes the following assumptions:

  • values contains all distinct values present in self.
  • freq and values are of the same length.
  • freq only contains zeros.

Returns None if values does not contain a value present in self, or if self has more elements than freq can accommodate.

Note that the frequencies in freq will be in the order of the sorted distinct elements in values.

§Examples
let mut data = [4, 64, 4, 2, 4, 8, 8, 4, 8, 4, 2, 8, 64, 4, 8, 4, 2];
let values = [64, 4, 2, 8];
let mut freq = [0; 4];
Sort(&mut data[..]).counting_buf(&mut freq, &values);
assert_eq![data, [64, 64, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 8, 8, 8, 8, 8]];
assert_eq![freq, [2, 7, 3, 5]];
§Panics

Panics in debug if the length of freq and values is not the same.

Source

pub fn insertion(self)

Sorts a slice using insertion sort.

§Examples
let mut arr = [4, 7, -5, 1, -13, 0];
Sort(&mut arr[..]).insertion();
assert_eq![arr, [-13, -5, 0, 1, 4, 7]];
Source

pub fn merge(self)
where T: Copy,

Available on crate feature alloc only.

Sorts a slice using merge sort.

It allocates one vector for the entire sort operation.

§Examples
let mut arr = [4, 7, -5, 1, -13, 0];
Sort(&mut arr[..]).merge();
assert_eq![arr, [-13, -5, 0, 1, 4, 7]];
Source

pub fn selection(self)

Sorts a slice using selection sort.

§Examples
let mut arr = [4, 7, -5, 1, -13, 0];
Sort(&mut arr[..]).selection();
assert_eq![arr, [-13, -5, 0, 1, 4, 7]];
Source

pub fn shaker(self)
where T: Clone,

Sorts a slice using shaker sort.

Also known as cocktail sort and double quicksort.

§Examples
let mut arr = [4, 7, -5, 1, -13, 0];
Sort(&mut arr[..]).shaker();
assert_eq![arr, [-13, -5, 0, 1, 4, 7]];
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impl<'a, T: Ord + 'a> Sort<&'a mut [T]>

Source

pub fn quick_lomuto(slice: &mut [T])

Sorts a slice using quick sort with the Lomuto partition scheme.

It performs more swaps compared to the Hoare partition scheme.

§Examples
let mut arr = [4, 7, -5, 1, -13, 0];
// Sort(&mut arr[..]).quick_lomuto();
Sort::quick_lomuto(&mut arr[..]);
assert_eq![arr, [-13, -5, 0, 1, 4, 7]];
Source

pub fn quick_3way(slice: &mut [T])
where T: Clone,

Sorts a slice using quick sort with the Three way partition scheme.

It is more efficient when dealing with duplicate elements.

§Examples
let mut arr = [4, 7, -5, 1, -13, 0];
Sort::quick_3way(&mut arr);
assert_eq![arr, [-13, -5, 0, 1, 4, 7]];
Source

pub fn quick_hoare(slice: &mut [T])
where T: Clone,

Sorts a slice using quick sort with the Hoare partition scheme.

It performs fewer swaps compared to the Lomuto partition scheme.

§Examples
let mut arr = [4, 7, -5, 1, -13, 0];
Sort::quick_hoare(&mut arr);
assert_eq![arr, [-13, -5, 0, 1, 4, 7]];
Source§

impl<const N: usize> Sort<[i8; N]>

Implement const sorting methods for arrays of primitives.

Source

pub const fn bubble_array(self) -> [i8; N]

Available on crate feature _sort_i8 only.

Returns a copied sorted array using bubble sort.

Source

pub const fn insertion_array(self) -> [i8; N]

Available on crate feature _sort_i8 only.

Returns a copied sorted array using insertion sort.

Source

pub const fn selection_array(self) -> [i8; N]

Available on crate feature _sort_i8 only.

Returns a copied sorted array using insertion sort.

Source§

impl<const N: usize> Sort<[i16; N]>

Implement const sorting methods for arrays of primitives.

Source

pub const fn bubble_array(self) -> [i16; N]

Available on crate feature _sort_i16 only.

Returns a copied sorted array using bubble sort.

Source

pub const fn insertion_array(self) -> [i16; N]

Available on crate feature _sort_i16 only.

Returns a copied sorted array using insertion sort.

Source

pub const fn selection_array(self) -> [i16; N]

Available on crate feature _sort_i16 only.

Returns a copied sorted array using insertion sort.

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impl<const N: usize> Sort<[i32; N]>

Implement const sorting methods for arrays of primitives.

Source

pub const fn bubble_array(self) -> [i32; N]

Available on crate feature _sort_i32 only.

Returns a copied sorted array using bubble sort.

Source

pub const fn insertion_array(self) -> [i32; N]

Available on crate feature _sort_i32 only.

Returns a copied sorted array using insertion sort.

Source

pub const fn selection_array(self) -> [i32; N]

Available on crate feature _sort_i32 only.

Returns a copied sorted array using insertion sort.

Source§

impl<const N: usize> Sort<[i64; N]>

Implement const sorting methods for arrays of primitives.

Source

pub const fn bubble_array(self) -> [i64; N]

Available on crate feature _sort_i64 only.

Returns a copied sorted array using bubble sort.

Source

pub const fn insertion_array(self) -> [i64; N]

Available on crate feature _sort_i64 only.

Returns a copied sorted array using insertion sort.

Source

pub const fn selection_array(self) -> [i64; N]

Available on crate feature _sort_i64 only.

Returns a copied sorted array using insertion sort.

Source§

impl<const N: usize> Sort<[i128; N]>

Implement const sorting methods for arrays of primitives.

Source

pub const fn bubble_array(self) -> [i128; N]

Available on crate feature _sort_i128 only.

Returns a copied sorted array using bubble sort.

Source

pub const fn insertion_array(self) -> [i128; N]

Available on crate feature _sort_i128 only.

Returns a copied sorted array using insertion sort.

Source

pub const fn selection_array(self) -> [i128; N]

Available on crate feature _sort_i128 only.

Returns a copied sorted array using insertion sort.

Source§

impl<const N: usize> Sort<[isize; N]>

Implement const sorting methods for arrays of primitives.

Source

pub const fn bubble_array(self) -> [isize; N]

Available on crate feature _sort_isize only.

Returns a copied sorted array using bubble sort.

Source

pub const fn insertion_array(self) -> [isize; N]

Available on crate feature _sort_isize only.

Returns a copied sorted array using insertion sort.

Source

pub const fn selection_array(self) -> [isize; N]

Available on crate feature _sort_isize only.

Returns a copied sorted array using insertion sort.

Source§

impl<const N: usize> Sort<[u8; N]>

Source

pub const fn bubble_array(self) -> [u8; N]

Available on crate feature _sort_u8 only.

Returns a copied sorted array using bubble sort.

Source

pub const fn insertion_array(self) -> [u8; N]

Available on crate feature _sort_u8 only.

Returns a copied sorted array using insertion sort.

Source

pub const fn selection_array(self) -> [u8; N]

Available on crate feature _sort_u8 only.

Returns a copied sorted array using selection sort.

Source§

impl<const N: usize> Sort<[u16; N]>

Source

pub const fn bubble_array(self) -> [u16; N]

Available on crate feature _sort_u16 only.

Returns a copied sorted array using bubble sort.

Source

pub const fn insertion_array(self) -> [u16; N]

Available on crate feature _sort_u16 only.

Returns a copied sorted array using insertion sort.

Source

pub const fn selection_array(self) -> [u16; N]

Available on crate feature _sort_u16 only.

Returns a copied sorted array using selection sort.

Source§

impl<const N: usize> Sort<[u32; N]>

Source

pub const fn bubble_array(self) -> [u32; N]

Available on crate feature _sort_u32 only.

Returns a copied sorted array using bubble sort.

Source

pub const fn insertion_array(self) -> [u32; N]

Available on crate feature _sort_u32 only.

Returns a copied sorted array using insertion sort.

Source

pub const fn selection_array(self) -> [u32; N]

Available on crate feature _sort_u32 only.

Returns a copied sorted array using selection sort.

Source§

impl<const N: usize> Sort<[u64; N]>

Source

pub const fn bubble_array(self) -> [u64; N]

Available on crate feature _sort_u64 only.

Returns a copied sorted array using bubble sort.

Source

pub const fn insertion_array(self) -> [u64; N]

Available on crate feature _sort_u64 only.

Returns a copied sorted array using insertion sort.

Source

pub const fn selection_array(self) -> [u64; N]

Available on crate feature _sort_u64 only.

Returns a copied sorted array using selection sort.

Source§

impl<const N: usize> Sort<[u128; N]>

Source

pub const fn bubble_array(self) -> [u128; N]

Available on crate feature _sort_u128 only.

Returns a copied sorted array using bubble sort.

Source

pub const fn insertion_array(self) -> [u128; N]

Available on crate feature _sort_u128 only.

Returns a copied sorted array using insertion sort.

Source

pub const fn selection_array(self) -> [u128; N]

Available on crate feature _sort_u128 only.

Returns a copied sorted array using selection sort.

Source§

impl<const N: usize> Sort<[usize; N]>

Source

pub const fn bubble_array(self) -> [usize; N]

Available on crate feature _sort_usize only.

Returns a copied sorted array using bubble sort.

Source

pub const fn insertion_array(self) -> [usize; N]

Available on crate feature _sort_usize only.

Returns a copied sorted array using insertion sort.

Source

pub const fn selection_array(self) -> [usize; N]

Available on crate feature _sort_usize only.

Returns a copied sorted array using selection sort.

Source§

impl<const N: usize> Sort<[f32; N]>

Source

pub const fn bubble_array(self) -> [f32; N]

Available on crate feature _sort_f32 only.

Returns a copied sorted array using bubble sort.

Source

pub const fn insertion_array(self) -> [f32; N]

Available on crate feature _sort_f32 only.

Returns a copied sorted array using insertion sort.

Source

pub const fn selection_array(self) -> [f32; N]

Available on crate feature _sort_f32 only.

Returns a copied sorted array using selection sort.

Source§

impl<const N: usize> Sort<[f64; N]>

Source

pub const fn bubble_array(self) -> [f64; N]

Available on crate feature _sort_f64 only.

Returns a copied sorted array using bubble sort.

Source

pub const fn insertion_array(self) -> [f64; N]

Available on crate feature _sort_f64 only.

Returns a copied sorted array using insertion sort.

Source

pub const fn selection_array(self) -> [f64; N]

Available on crate feature _sort_f64 only.

Returns a copied sorted array using selection sort.

Auto Trait Implementations§

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impl<T> Freeze for Sort<T>
where T: Freeze,

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impl<T> RefUnwindSafe for Sort<T>
where T: RefUnwindSafe,

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impl<T> Send for Sort<T>
where T: Send,

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impl<T> Sync for Sort<T>
where T: Sync,

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impl<T> Unpin for Sort<T>
where T: Unpin,

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impl<T> UnwindSafe for Sort<T>
where T: UnwindSafe,

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