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This means it might contain formatting issues, incorrect code, conceptual problems, or other severe issues.

If you want to help to improve and eventually enable this page, please fork RosettaGit's repository and open a merge request on GitHub.

{{task|Sorting}} Sort an array (or list) of integers in ascending numerical order.

;Task: Use a sorting facility provided by the language/library if possible.

## 4D

### English

```ARRAY INTEGER(\$nums;0)
APPEND TO ARRAY(\$nums;2)
APPEND TO ARRAY(\$nums;4)
APPEND TO ARRAY(\$nums;3)
APPEND TO ARRAY(\$nums;1)
APPEND TO ARRAY(\$nums;2)
SORT ARRAY(\$nums)  ` sort in ascending order
SORT ARRAY(\$nums;<)  ` sort in descending order
```

===Français===

```TABLEAU ENTIER(\$nombres;0)
AJOUTER A TABLEAU(\$nombres;2)
AJOUTER A TABLEAU(\$nombres;4)
AJOUTER A TABLEAU(\$nombres;3)
AJOUTER A TABLEAU(\$nombres;1)
AJOUTER A TABLEAU(\$nombres;2)
TRIER TABLEAU(\$nombres)  ` pour effectuer un tri par ordre croissant
TRIER TABLEAU(\$nombres;<)  ` pour effectuer un tri par ordre décroissant
```

## 8th

```
[ 10,2,100 ] ' n:cmp a:sort . cr

```

Output is: [2,10,100]

## ActionScript

```//Comparison function must returns Numbers even though it deals with integers.
function compare(x:int, y:int):Number
{
return Number(x-y);
}
var nums:Vector.<int> = Vector.<int>([5,12,3,612,31,523,1,234,2]);
nums.sort(compare);
```

{{works with|GNAT|GPL 2006}}

```with Gnat.Heap_Sort_G;

procedure Integer_Sort is
-- Heap sort package requires data to be in index values starting at
-- 1 while index value 0 is used as temporary storage
type Int_Array is array(Natural range <>) of Integer;
Values : Int_Array := (0,1,8,2,7,3,6,4,5);

-- define move and less than subprograms for use by the heap sort package
procedure Move_Int(From : Natural; To : Natural) is
begin
Values(To) := Values(From);
end Move_Int;

function Lt_Int(Left, Right : Natural) return Boolean is
begin
return Values(Left) < Values (Right);
end Lt_Int;

-- Instantiate the generic heap sort package
package Heap_Sort is new Gnat.Heap_Sort_G(Move_Int, Lt_Int);

begin
Heap_Sort.Sort(8);
end Integer_Sort;

requires an Ada05 compiler, e.g GNAT GPL 2007

procedure Integer_Sort is
--
type Int_Array is array(Natural range <>) of Integer;
Values : Int_Array := (0,1,8,2,7,3,6,4,5);

-- Instantiate the generic sort package from the standard Ada library
(Index_Type   => Natural,
Element_Type => Integer,
Array_Type   => Int_Array);

begin
Sort(Values);
end Integer_Sort;
```

## ALGOL 68

{{trans|python}}

{{works with|ALGOL 68|Standard - no extensions to language used}} {{works with|ALGOL 68G|Any - tested with release mk15-0.8b.fc9.i386}} {{works with|ELLA ALGOL 68|Any (with appropriate job cards) - tested with release 1.8.8d.fc9.i386}}

```CO PR READ "shell_sort.a68" PR CO
MODE TYPE = INT;

PROC in place shell sort = (REF[]TYPE seq)REF[]TYPE:(
INT inc := ( UPB seq + LWB seq + 1 ) OVER 2;
WHILE inc NE 0 DO
FOR index FROM LWB seq TO UPB seq DO
INT i := index;
TYPE el = seq[i];
WHILE ( i  - LWB seq >= inc | seq[i - inc] > el | FALSE ) DO
seq[i] := seq[i - inc];
i -:= inc
OD;
seq[i] := el
OD;
inc := IF inc = 2 THEN 1 ELSE ENTIER(inc * 5 / 11) FI
OD;
seq
);

PROC shell sort = ([]TYPE seq)[]TYPE:
in place shell sort(LOC[LWB seq: UPB seq]TYPE:=seq);

print((shell sort((2, 4, 3, 1, 2)), new line))
```

Output:

```
+1         +2         +2         +3         +4

```

## ALGOL W

Algol W doesn't have standard sorting facilities. This uses the Algol W quicksort sample in the Sorting Algorithms Quicksort task.

```begin
% use the quicksort procedure from the Sorting_Algorithms/Quicksort task %
% Quicksorts in-place the array of integers v, from lb to ub - external  %
procedure quicksort ( integer array v( * )
; integer value lb, ub
) ; algol "sortingAlgorithms_Quicksort" ;
% sort an integer array with the quicksort routine                       %
begin
integer array t ( 1 :: 5 );
integer p;
p := 1;
for v := 2, 3, 1, 9, -2 do begin t( p ) := v; p := p + 1; end;
quicksort( t, 1, 5 );
for i := 1 until 5 do writeon( i_w := 1, s_w := 1, t( i ) )
end
end.
```

{{out}}

```
-2 1 2 3 9

```

## APL

{{works with|APL2}}

```      X←63 92 51 92 39 15 43 89 36 69
X[⍋X]
15 36 39 43 51 63 69 89 92 92
```

## AppleScript

AppleScript has no native sort function.

Later versions of AppleScript (OS X 10.10 onwards) do allow access to the ObjC NSArray library, but while this approach can yield reasonably fast sorts, it is slow in terms of scripter time, requiring digestion of the ObjC library documentation, and leading to code like the '''sort''' function below, which is possibly more messy than it is worth for the purposes of casual end-user scripting, for which AppleScript was presumably designed.

```use framework "Foundation"

-- sort :: [a] -> [a]
on sort(lst)
((current application's NSArray's arrayWithArray:lst)'s ¬
sortedArrayUsingSelector:"compare:") as list
end sort

-- TEST -----------------------------------------------------------------------
on run

map(sort, [[9, 1, 8, 2, 8, 3, 7, 0, 4, 6, 5], ¬
["alpha", "beta", "gamma", "delta", "epsilon", "zeta", "eta", ¬
"theta", "iota", "kappa", "lambda", "mu"]])

end run

-- GENERIC FUNCTIONS  ---------------------------------------------------------

-- map :: (a -> b) -> [a] -> [b]
on map(f, xs)
tell mReturn(f)
set lng to length of xs
set lst to {}
repeat with i from 1 to lng
set end of lst to |λ|(item i of xs, i, xs)
end repeat
return lst
end tell
end map

-- Lift 2nd class handler function into 1st class script wrapper
-- mReturn :: Handler -> Script
on mReturn(f)
if class of f is script then
f
else
script
property |λ| : f
end script
end if
end mReturn
```

{{Out}}

```{{0, 1, 2, 3, 4, 5, 6, 7, 8, 8, 9},
{"alpha", "beta", "delta", "epsilon", "eta", "gamma",
"iota", "kappa", "lambda", "mu", "theta", "zeta"}}
```

## AutoHotkey

```numbers = 5 4 1 2 3
sort, numbers, N D%A_Space%
Msgbox % numbers
```

## AWK

```
# syntax: GAWK -f SORT_AN_INTEGER_ARRAY.AWK
BEGIN {
split("9,10,3,1234,99,1,200,2,0,-2",arr,",")
show("@unsorted","unsorted")
show("@val_num_asc","sorted ascending")
show("@val_num_desc","sorted descending")
exit(0)
}
function show(sequence,description,  i) {
PROCINFO["sorted_in"] = sequence
for (i in arr) {
printf("%s ",arr[i])
}
printf("\t%s\n",description)
}

```

output:

```
9 10 3 1234 99 1 200 2 0 -2     unsorted
-2 0 1 2 3 9 10 99 200 1234     sorted ascending
1234 200 99 10 9 3 2 1 0 -2     sorted descending

```

## Axe

There is no ascending sort function in Axe, but there is a descending sort function. One can either implement a custom ascending sorting function or simply reverse the output from SortD.

```2→{L₁}
4→{L₁+1}
3→{L₁+2}
1→{L₁+3}
2→{L₁+4}

SortD(L₁,5)
```

## Babel

Use the sortval operator to sort an array of integers (val-array in Babel terminology). The following code creates a list of random values, converts it to a val-array, sorts that val-array, then converts it back to a list for display using the lsnum utility.

``` nil { zap {1 randlf 100 rem} 20 times collect ! } nest dup lsnum ! --> Create a list of random numbers
( 20 47 69 71 18 10 92 9 56 68 71 92 45 92 12 7 59 55 54 24 )
babel> ls2lf                                                              --> Convert list to array for sorting
babel> dup {fnord} merge_sort                                             --> The internal sort operator
babel> ar2ls lsnum !                                                      --> Display the results
( 7 9 10 12 18 20 24 45 47 54 55 56 59 68 69 71 71 92 92 92 )
```

In Babel, lists and arrays are distinct. If you want to sort a list, use the lssort utility:

``` ( 68 73 63 83 54 67 46 53 88 86 49 75 89 83 28 9 34 21 20 90 )
babel> {lt?} lssort ! lsnum !
( 9 20 21 28 34 46 49 53 54 63 67 68 73 75 83 83 86 88 89 90 )
```

To reverse the sort-order, use the 'gt?' predicate instead of the 'lt?' predicate:

``` ( 68 73 63 83 54 67 46 53 88 86 49 75 89 83 28 9 34 21 20 90 ) {gt?} lssort ! lsnum !
( 90 89 88 86 83 83 75 73 68 67 63 54 53 49 46 34 28 21 20 9 )
```

## BaCon

```' Sort an integer array
DECLARE values[5] TYPE NUMBER
values[0] = 23
values[1] = 32
values[2] = 12
values[3] = 21
values[4] = 01

SORT values

FOR i = 0 TO 3
PRINT values[i], ", ";
NEXT
PRINT values[4]
```

{{out}}

```prompt\$ ./sort-integer
1, 12, 21, 23, 32
```

Use SORT array DOWN for descending sort order.

## BBC BASIC

{{works with|BBC BASIC for Windows}} Uses the supplied SORTLIB library.

```      INSTALL @lib\$+"SORTLIB"
sort% = FN_sortinit(0,0)

DIM array(8)
array() = 8, 2, 5, 9, 1, 3, 6, 7, 4

C% = DIM(array(),1) + 1
CALL sort%, array(0)

FOR i% = 0 TO DIM(array(),1) - 1
PRINT ; array(i%) ", ";
NEXT
PRINT ; array(i%)
```

Output:

```
1, 2, 3, 4, 5, 6, 7, 8, 9

```

## Befunge

{{works with|befungee}} Elements of the array are read from standard input, preceded by their quantity. The algorithm uses counting sort and allows numbers between 1 and 60, inclusive.

```v
> 543** >     :#v_ \$&>           :#v_ 1 > :0g >    :#v_ \$ 1+: 543** `! #v_ 25*,@
^-1p0\0:<    ^-1 p0\+1 g0:&<          ^-1\.:\<
^                               <
```

## Bracmat

As a Computer Algebra system, Bracmat transforms expressions to a canonical form. Terms in a sum are sorted and, where possible, added together. So the task is partially solved by expressing the list as a sum of terms. Evaluating the list sorts the list, but also adds like terms. To illustrate, this is what happens when entering our list at the prompt:

```{?} (9.)+(-2.)+(1.)+(2.)+(8.)+(0.)+(1.)+(2.)
{!} (-2.)+(0.)+2*(1.)+2*(2.)+(8.)+(9.)
```

The use of a computationally inert operator like the dot `.` is essential:

```{?} (9)+(-2)+(1)+(2)+(8)+(0)+(1)+(2)
{!} 21
```

To complete the task need to unfold the terms with a numerical factor >1:

```{sort takes a list of space-separated integers}
(sort=
sum elem sorted n
.   0:?sum
&   whl
' (!arg:%?elem ?arg&(!elem.)+!sum:?sum)
& :?sorted
&   whl
' ( !sum:?n*(?elem.)+?sum
&   whl
' ( !n+-1:~<0:?n
& !sorted !elem:?sorted
)
)
& !sorted);

out\$sort\$(9 -2 1 2 8 0 1 2);
```

Output:

```-2 0 1 1 2 2 8 9
```

This solution becomes very ineffective for long lists. To add a single term to an already sorted sum of N terms requires on average N/2 steps. It is much more efficient to merge two already sorted sums of about equal length. Also, adding elements to the end of the list 'sorted' is costly. Better is to prepend elements to a list, which will have inverted sorting order, and to invert this list in an extra loop.

## Burlesque

```{1 3 2 5 4}><
```

## C

```#include <iostream>  /* qsort() */
#include <stdio.h>   /* printf() */

int intcmp(const void *aa, const void *bb)
{
const int *a = aa, *b = bb;
return (*a < *b) ? -1 : (*a > *b);
}

int main()
{
int nums[5] = {2,4,3,1,2};
qsort(nums, 5, sizeof(int), intcmp);
printf("result: %d %d %d %d %d\n",
nums[0], nums[1], nums[2], nums[3], nums[4]);
return 0;
}
```

''Caution:'' An older version of intcmp() did return *a - *b. This is only correct when the subtraction does not overflow. Suppose that *a = 2000000000 and *b = -2000000000 on a machine with 32-bit int. The subtraction *a - *b would overflow to -294967296, and intcmp() would believe *a < *b, but the correct answer is *a > *b.

## C++

{{works with|g++|4.0.1}}

### Simple Array

```#include <algorithm>

int main()
{
int nums[] = {2,4,3,1,2};
std::sort(nums, nums+sizeof(nums)/sizeof(int));
return 0;
}
```

### std::vector

```#include <algorithm>
#include <vector>

int main()
{
std::vector<int> nums;
nums.push_back(2);
nums.push_back(4);
nums.push_back(3);
nums.push_back(1);
nums.push_back(2);
std::sort(nums.begin(), nums.end());
return 0;
}
```

### std::list

```#include <list>

int main()
{
std::list<int> nums;
nums.push_back(2);
nums.push_back(4);
nums.push_back(3);
nums.push_back(1);
nums.push_back(2);
nums.sort();
return 0;
}
```

## C#

```using System;
using System.Collections.Generic;

public class Program {
static void Main() {
int[] unsorted = { 6, 2, 7, 8, 3, 1, 10, 5, 4, 9 };
Array.Sort(unsorted);
}
}
```

## Clean

We use list and array comprehensions to convert an array to and from a list in order to use the built-in sort on lists.

```import StdEnv

sortArray :: (a e) -> a e | Array a e & Ord e
sortArray array = {y \\ y <- sort [x \\ x <-: array]}

Start :: {#Int}
Start = sortArray {2, 4, 3, 1, 2}
```

## Clojure

```(sort [5 4 3 2 1]) ; sort can also take a comparator function
(1 2 3 4 5)
```

## COBOL

{{works with|Visual COBOL}}

```       PROGRAM-ID. sort-ints.

DATA DIVISION.
WORKING-STORAGE SECTION.
01  array-area             VALUE "54321".
03  array              PIC 9 OCCURS 5 TIMES.
01  i                      PIC 9.

PROCEDURE DIVISION.
main-line.
PERFORM display-array
SORT array ASCENDING array
PERFORM display-array

GOBACK
.
display-array.
PERFORM VARYING i FROM 1 BY 1 UNTIL 5 < i
DISPLAY array (i) " " NO ADVANCING
END-PERFORM
DISPLAY SPACE
.
```

## Common Lisp

In Common Lisp, the ''sort'' function takes a predicate that is used as the comparator. This parameter can be any two-argument function. To sort a sequence (list or array) of integers, call ''sort'' with the < operator as the predicate:

```CL-USER> (sort #(9 -2 1 2 8 0 1 2) #'<)
#(-2 0 1 1 2 2 8 9)
```

## Crystal

Example demonstrating the support for copy sort and in-place sort (like Ruby)

```
a = [5, 4, 3, 2, 1]
puts a.sort
# => [1, 2, 3, 4, 5]

puts a
# => [5, 4, 3, 2, 1]

a.sort!
puts a
# => [1, 2, 3, 4, 5]

```

## D

```import std.stdio, std.algorithm;

void main() {
auto data = [2, 4, 3, 1, 2];
data.sort(); // in-place
assert(data == [1, 2, 2, 3, 4]);
}
```

## Delphi

```uses Types, Generics.Collections;

var
a: TIntegerDynArray;
begin
a := TIntegerDynArray.Create(5, 4, 3, 2, 1);
TArray.Sort<Integer>(a);
end;
```

```!. sort [ 5 4 3 2 1 ]
```

{{out}}

```[ 1 2 3 4 5 ]
```

## DWScript

```var a : array of Integer := [5, 4, 3, 2, 1];
a.Sort; // ascending natural sort
PrintLn(a.Map(IntToStr).Join(','));  // 1,2,3,4,5
```

## E

```[2,4,3,1,2].sort()
```

## Elena

ELENA 4.1 :

```import system'routines;
import extensions;

public program()
{
var unsorted := new int[]::(6, 2, 7, 8, 3, 1, 10, 5, 4, 9);

console.printLine(unsorted.clone().sort(ifOrdered).asEnumerable())
}
```

## Elixir

```list = [2, 4, 3, 1, 2]
IO.inspect Enum.sort(list)
IO.inspect Enum.sort(list, &(&1>&2))
```

{{out}}

```
[1, 2, 2, 3, 4]
[4, 3, 2, 2, 1]

```

## Erlang

```List = [2, 4, 3, 1, 2].
SortedList = lists:sort(List).
```

## Euphoria

```include sort.e
print(1,sort({20, 7, 65, 10, 3, 0, 8, -60}))
```

## EGL

{{works with|EDT}} The following works in EDT with Rich UI and stand-alone programs.

```program SortExample

function main()
test1 int[] = [1,-1,8,-8,2,-2,7,-7,3,-3,6,-6,9,-9,4,-4,5,-5,0];
test1.sort(sortFunction);

for(i int from 1 to test1.getSize())
SysLib.writeStdout(test1[i]);
end
end

function sortFunction(a any in, b any in) returns (int)
return (a as int) - (b as int);
end

end
```

{{works with|RBD}} The following works in RBD but only with Rich UI programs.

```test1 int[] = [1,-1,8,-8,2,-2,7,-7,3,-3,6,-6,9,-9,4,-4,5,-5,0];
RUILib.sort(test1, sortFunction);

function sortFunction(a any in, b any in) returns (int)
return ((a as int) - (b as int));
end
```

## Factor

```{ 1 4 9 2 3 0 5 } natural-sort .
```

## Fantom

The List collection contains a sort method which uses the usual comparison method for the data in the list; the sort is done 'in place'.

```
fansh> a := [5, 1, 4, 2, 3]
[5, 1, 4, 2, 3]
fansh> a.sort
[1, 2, 3, 4, 5]
fansh> a
[1, 2, 3, 4, 5]

```

## Forth

{{works with|Win32Forth|4.2}}

### Win32Forth

```create test-data 2 , 4 , 3 , 1 , 2 ,
test-data 5 cell-sort

```

### ANS/ISO Forth

{{works with|GForth}} Uses quicksort http://rosettacode.org/wiki/Sorting_algorithms/Quicksort#Forth

Standard Forth does not have a library sort

```100000 CONSTANT SIZE

CREATE MYARRAY   SIZE CELLS ALLOT

: FILLIT ( -- ) ( reversed order)
SIZE 0  DO   SIZE I -   I MYARRAY [] !  LOOP ;

: SEEIT  ( -- )
SIZE 0 DO  I MYARRAY [] ?   LOOP ;

\ define non-standard words used by Quicksort author
1 CELLS CONSTANT CELL
CELL NEGATE CONSTANT -CELL
: CELL-   CELL - ;

: MID ( l r -- mid ) OVER - 2/ -CELL AND + ;

OVER @ OVER @        ( read values)
SWAP ROT ! SWAP ! ;  ( exchange values)

: PARTITION ( l r -- l r r2 l2 )
2DUP MID @ >R ( r: pivot )
2DUP
BEGIN
SWAP BEGIN  DUP @  R@  < WHILE CELL+ REPEAT
SWAP BEGIN  R@ OVER @  < WHILE CELL- REPEAT
2DUP <= IF 2DUP EXCH  >R CELL+ R> CELL-  THEN
2DUP >
UNTIL
R> DROP ;

: QSORT ( l r -- )
PARTITION  SWAP ROT
2DUP < IF RECURSE ELSE 2DROP THEN
2DUP < IF RECURSE ELSE 2DROP THEN ;

: QUICKSORT ( array len -- )
DUP 2 < IF 2DROP EXIT THEN  1- CELLS OVER + QSORT ;</LANG>
Test at the console

```forth
FILLIT ok
MYARRAY SIZE QUICKSORT ok
```

## Fortran

{{works with|Silverfrost FTN95}}

```CALL ISORT@(b, a, n)
! n = number of elements
! a = array to be sorted
! b = array of indices of a. b(1) 'points' to the minimum value etc.
```

## FreeBASIC

Qsort is not buildin, but include in the compiler package.

```' version 11-03-2016
' compile with: fbc -s console

#Include Once "crt/stdlib.bi"      ' needed for qsort subroutine

' Declare Sub qsort (ByVal As Any Ptr, <== point to start of array
'                    ByVal As size_t,  <== size of array
'                    ByVal As size_t,  <== size of array element
' ByVal As Function(ByVal As Any Ptr, ByVal As Any Ptr) As Long)  <== callback function
' declare callback function with Cdecl to ensures that the parameters are passed in the correct order
'
' size of long: 4 bytes on 32bit OS, 8 bytes on 64bit OS

' ascending
Function callback Cdecl (ByVal element1 As Any Ptr, ByVal element2 As Any Ptr) As Long
Function = *Cast(Long Ptr, element1) - *Cast(Long Ptr, element2)
End Function

' Function callback Cdecl (ByVal element1 As Any Ptr, ByVal element2 As Any Ptr) As Long
' Dim As Long e1 = *Cast(Long Ptr, element1)
' Dim As Long e2 = *Cast(Long Ptr, element2)
' Dim As Long result = Sgn(e1 - e2)
' If Sgn(e1) = -1 And Sgn(e2) = -1 Then result = -result
'     Function = result
' End Function

' ------=< MAIN >=------

Dim As Long i, array(20)

Dim As Long lb = LBound(array)
Dim As Long ub = UBound(array)

For i = lb To ub     ' fill array
array(i) = 10 - i
Next

Print
Print "unsorted array"
For i = lb To ub     ' display array
Print Using "###";array(i);
Next
Print : Print

' sort array
qsort(@array(lb), ub - lb +1, SizeOf(array), @callback)

Print "sorted array"
For i = lb To ub     ' show sorted array
Print Using "###";array(i);
Next
Print

' empty keyboard buffer
While Inkey <> "" : Wend
Print : Print "hit any key to end program"
Sleep
End
```

{{out}}

```unsorted array
10  9  8  7  6  5  4  3  2  1  0 -1 -2 -3 -4 -5 -6 -7 -8 -9-10

sorted array
-10 -9 -8 -7 -6 -5 -4 -3 -2 -1  0  1  2  3  4  5  6  7  8  9 10
```

## Frink

The following sorts an array in-place.

```a = [5, 2, 4, 1, 6, 7, 9, 3, 8, 0]
sort[a]
```

```// sorting an array in place
let nums = [| 2; 4; 3; 1; 2 |]
Array.sortInPlace nums

// create a sorted copy of a list
let nums2 = [2; 4; 3; 1; 2]
let sorted = List.sort nums2
```

## FunL

```nums = [5, 2, 78, 2, 578, -42]
println( sort(nums) )           // sort in ascending order
println( nums.sortWith((>)) )   // sort in descending order
```

{{out}}

```
[-42, 2, 2, 5, 78, 578]
[578, 78, 5, 2, 2, -42]

```

## GAP

```a := [ 8, 2, 5, 9, 1, 3, 6, 7, 4 ];
# Make a copy (with "b := a;", b and a would point to the same list)
b := ShallowCopy(a);

# Sort in place
Sort(a);
a;
# [ 1, 2, 3, 4, 5, 6, 7, 8, 9 ]

# Sort without changing the argument
SortedList(b);
# [ 1, 2, 3, 4, 5, 6, 7, 8, 9 ]
b;
# [ 8, 2, 5, 9, 1, 3, 6, 7, 4 ]
```

## Gambas

'''[https://gambas-playground.proko.eu/?gist=1f1d244aa95c329eb87cb538f0d5fc4a Click this link to run this code]'''

```Public Sub Main()
Dim iArray As Integer[] = [8, 2, 5, 9, 1, 3, 6, 7, 4]
Dim iTemp As Integer
Dim sOutput As String

For Each iTemp In iArray.Sort()
sOutput &= iTemp & ", "
Next

Print Left(sOutput, -2)

End
```

Output:

```
1, 2, 3, 4, 5, 6, 7, 8, 9

```

## Go

```package main
import "fmt"
import "sort"

func main() {
nums := []int {2, 4, 3, 1, 2}
sort.Ints(nums)
fmt.Println(nums)
}
```

## Golfscript

```[2 4 3 1 2]\$
```

## Groovy

```println ([2,4,0,3,1,2,-12].sort())
```

Output:

```[-12, 0, 1, 2, 2, 3, 4]
```

{{works with|GHC|GHCi|6.6}}

```nums = [2,4,3,1,2] :: [Int]
sorted = List.sort nums
```

## HicEst

```DIMENSION array(100)

array = INT( RAN(100) )
SORT(Vector=array, Sorted=array)
```

## Huginn

```main() {
nums = [2, 4, 3, 1, 2];
nums.sort();
}
```

## IDL

```result = array[sort(array)]
```

=={{header|Icon}} and {{header|Unicon}}== Icon and Unicon lists allow mixed type and the built-in function 'sort' will deal with mixed type arrays by sorting by type first then value. Integers sort before, reals, strings, lists, tables, etc. As a result a list of mixed numeric valuess (i.e. integers and reals) will not sort by numeric value, rather the reals will appear after the integers. Sort returns a sorted copy of it's argument. It will also perform some type conversion, such converting an unordered set into an ordered list.

In the example below, L will remain an unsorted list and S will be sorted.

```S := sort(L:= [63, 92, 51, 92, 39, 15, 43, 89, 36, 69])  # will sort a list
```

## Inform 7

```let L be {5, 4, 7, 1, 18};
sort L;
```

## Io

```mums := list(2,4,3,1,2)
sorted := nums sort  # returns a new sorted array.  'nums' is unchanged
nums sortInPlace  # sort 'nums' "in-place"
```

## J

```/:~
```

The verb /:~ sorts anything that J can represent. For example:

```   ] a=: 10 ?@\$ 100    NB. random vector
63 92 51 92 39 15 43 89 36 69
/:~ a
15 36 39 43 51 63 69 89 92 92
```

Arrays of any rank are treated as lists of component arrays. Thus /:~ sorts not only atoms within a list, but whole lists within a table, tables within a three-axis array, and so on. The level of structure at which sorting occurs may also be specified, so that /:~"1 sorts the atoms within the finest-grained list within the array, regardless of the overall rank of the array. See the [https://code.jsoftware.com/wiki/Essays/The_TAO_of_J Total Array Ordering essay] on the JWiki for more details.

This code also applies to any data type.

## Java

### Array

```import java.util.Arrays;

public class Example {
public static void main(String[] args)
{
int[] nums = {2,4,3,1,2};
Arrays.sort(nums);
}
}
```

### List

{{works with|Java|1.5+}}

```import java.util.Arrays;
import java.util.Collections;
import java.util.List;

public class Example {
public static void main(String[] args)
{
List<Integer> nums = Arrays.asList(2,4,3,1,2);
Collections.sort(nums);
}
}
```

## JavaScript

{{works with|Firefox|2.0}}

JavaScript sorts lexically by default, so "10000" comes before "2". To sort numerically, a custom comparator is used.

```function int_arr(a, b) {
return a - b;
}
var numbers = [20, 7, 65, 10, 3, 0, 8, -60];
numbers.sort(int_arr);
document.write(numbers);
```

## Kotlin

```// version 1.0.6

fun main(args: Array<String>) {
val ints = intArrayOf(6, 2, 7, 8, 3, 1, 10, 5, 4, 9)
ints.sort()
println(ints.joinToString(prefix = "[", postfix = "]"))
}
```

{{out}}

```
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

```

## Lasso

```local(array) = array(5,20,3,2,6,1,4)
#array->sort
#array // 1, 2, 3, 4, 5, 6, 20

// Reverse the sort order
#array->sort(false)
#array // 20, 6, 5, 4, 3, 2, 1
```

## jq

jq's builtin `sort` filter sorts the elements of an array in ascending order:

```[2,1,3] | sort  # => [1,2,3]
```

## Julia

Julia has both out-of-place (`sort`) and in-place (`sort!`) sorting functions in its standard-library:

``` a = [4,2,3,1]
4-element Int32 Array:
4
2
3
1
julia> sort(a) #out-of-place/non-mutating sort
4-element Int32 Array:
1
2
3
4

julia> a
4-element Int32 Array:
4
2
3
1

julia> sort!(a) # in-place/mutating sort
4-element Int32 Array:
1
2
3
4

julia> a
4-element Int32 Array:
1
2
3
4
```

## K

```  num: -10?10              / Integers from 0 to 9 in random order
5 9 4 2 0 3 6 1 8 7

srt: {x@<x}              / Generalized sort ascending
srt num
0 1 2 3 4 5 6 7 8 9
```

## Liberty BASIC

LB has an array-sort command. Parameters are arrayname, start term, finish term.

```N =20
dim IntArray( N)

print "Original order"
for i =1 to N
t =int( 1000 *rnd( 1))
IntArray( i) =t
print t
next i

sort IntArray(), 1, N

print "Sorted oprder"
for i =1 to N
print IntArray( i)
next i
```

## Lingo

```l = [7, 4, 23]
l.sort()
put l
-- [4, 7, 23]
```

## LiveCode

LiveCode can sort lines or items natively. The delimiter for items can be set to any single character, but defaults to comma.

```put "3,2,5,4,1" into X
sort items of X numeric
put X
-- outputs "1,2,3,4,5"
```

## Lua

```t = {4, 5, 2}
table.sort(t)
print(unpack(t))
```

## Maple

```sort([5,7,8,3,6,1]);
sort(Array([5,7,8,3,6,1]))
```

## Mathematica

```numbers = Sort[{2,4,3,1,2}]
```

## MATLAB

```a = [4,3,7,-2,9,1]; b = sort(a)     % b contains elements of a in ascending order
[b,idx] = sort(a)                   % b contains a(idx)
```

## Maxima

```sort([9, 4, 3, 7, 6, 1, 10, 2, 8, 5]);
```

## MAXScript

```arr = #(5, 4, 3, 2, 1)
arr = sort arr
```

## Mercury

:- module sort_int_list. :- interface. :- import_module io.

:- pred main(io::di, uo::uo) is det.

:- implementation. :- import_module list.

main(!IO) :- Nums = [2, 4, 0, 3, 1, 2], list.sort(Nums, Sorted), io.write(Sorted, !IO), io.nl(!IO).

```

## min

{{works with|min|0.19.3}}

```min
(5 2 1 3 4) '> sort print
```

{{out}}

```
(1 2 3 4 5)

```

=={{header|Modula-3}}== Modula-3 provides a generic ArraySort module, as well as an instance of that module for integers called IntArraySort.

```MODULE ArraySort EXPORTS Main;

IMPORT IntArraySort;

VAR arr := ARRAY [1..10] OF INTEGER{3, 6, 1, 2, 10, 7, 9, 4, 8, 5};

BEGIN
IntArraySort.Sort(arr);
END ArraySort.
```

## MUMPS

```SORTARRAY(X,SEP)
;X is the list of items to sort
;X1 is the temporary array
;SEP is the separator string between items in the list X
;Y is the returned list
;This routine uses the inherent sorting of the arrays
NEW I,X1,Y
SET Y=""
FOR I=1:1:\$LENGTH(X,SEP) SET X1(\$PIECE(X,SEP,I))=""
SET I="" FOR  SET I=\$O(X1(I)) Q:I=""  SET Y=\$SELECT(\$L(Y)=0:I,1:Y_SEP_I)
KILL I,X1
QUIT Y
```

Output:

```USER>W \$\$SORTARRAY^ROSETTA("3,5,1,99,27,16,0,-1",",")
-1,0,1,3,5,16,27,99

```

## Neko

```/**
<doc><h2>Sort integer array, in Neko</h2>
<p>Array sort function modified from Haxe codegen with -D neko-source</p>
<p>The Neko target emits support code for Haxe basics, sort is included</p>
<p>Tectonics:<br />prompt\$ nekoc sort.neko<br />prompt\$ neko sort</p>
</doc>
**/

var sort = function(a) {
var i = 0;
var len = \$asize(a);
while ( i < len ) {
var swap = false;
var j = 0;
var max = (len - i) - 1;
while ( j < max ) {
if ( (a[j] - a[j + 1]) > 0 ) {
var tmp = a[j + 1];
a[j + 1] = a[j];
a[j] = tmp;
swap = true;
}
j += 1;
}
if ( \$not(swap) )
break;;
i += 1;
}
return a;
}

var arr = \$array(5,3,2,1,4)
\$print(arr, "\n")

/* Sorts in place */
sort(arr)
\$print(arr, "\n")

/* Also returns the sorted array for chaining */
\$print(sort(\$array(3,1,4,1,5,9,2,6,5,3,5,8)), "\n")
```

{{out}}

```prompt\$ nekoc sort.neko
prompt\$ neko sort.n
[5,3,2,1,4]
[1,2,3,4,5]
[1,1,2,3,3,4,5,5,5,6,8,9]
```

## Nemerle

```using System.Console;

module IntSort
{
Main() : void
{
def nums = [1, 5, 3, 7, 2, 8, 3, 9];
def sorted = nums.Sort((x, y) => x.CompareTo(y));

WriteLine(nums);
WriteLine(sorted);
}
}
```

Output:

```[1, 5, 3, 7, 2, 8, 3, 9]
[1, 2, 3, 3, 5, 7, 8, 9]
```

## NetRexx

```/* NetRexx */
options replace format comments java crossref savelog symbols binary

ia = int[]
ia = [ 2, 4, 3, 1, 2, -1, 0, -2 ]

display(ia)
Arrays.sort(ia)
display(ia)

-- Display results
method display(in = int[]) public static

sorted = Rexx('')

loop ix = 0 for in.length
sorted = sorted || Rexx(in[ix]).right(4)
end ix

say sorted.strip('t')

return
```

'''Output'''

```   2   4   3   1   2  -1   0  -2
-2  -1   0   1   2   2   3   4

```

NetRexx reimplementations of the [[#REXX|Rexx]] samples from below:

```NetRexx
/* NetRexx */
options replace format comments java crossref savelog symbols

/*REXX program to sort an integer array.*/

numeric digits 20    /*handle larger numbers.*/
a = ''
a[ 1]=               1
a[ 2]=               0
a[ 3]=              -1
a[ 4]=               0
a[ 5]=               5
a[ 6]=               0
a[ 7]=             -61
a[ 8]=               0
a[ 9]=            1385
a[10]=               0
a[11]=          -50521
a[12]=               0
a[13]=         2702765
a[14]=               0
a[15]=      -199360981
a[16]=               0
a[17]=     19391512145
a[18]=               0
a[19]=  -2404879675441
a[20]=               0
a[21]= 370371188237525

size = 21                          /*we have a list of 21 Euler numbers.*/
tell('un-sorted', a, size)
a[0] = size
esort(a, 1)
tell('   sorted', a, size)

return

/*----------------------------------ESORT subroutine--------------------*/
method esort(a, size) public static
--esort: procedure expose a.;

h = a[0]

loop while h > 1
h = h % 2
loop i = 1 for a[0] - h
j = i
k = h + i
loop while a[k] < a[j]
t    = a[j]
a[j] = a[k]
a[k] = t
if h >= j then leave
j = j - h
k = k - h
end
end i
end

return

/*----------------------------------TELL subroutine---------------------*/
method tell(arg, a, size) public static
--tell:

say arg.center(40, '-')
loop j = 1 for size
say arg 'array element' j.right(size.length)'='a[j].right(25)
end j
say

return
```

'''Output'''
---------------un-sorted----------------
un-sorted array element  1=                        1
un-sorted array element  2=                        0
un-sorted array element  3=                       -1
un-sorted array element  4=                        0
un-sorted array element  5=                        5
un-sorted array element  6=                        0
un-sorted array element  7=                      -61
un-sorted array element  8=                        0
un-sorted array element  9=                     1385
un-sorted array element 10=                        0
un-sorted array element 11=                   -50521
un-sorted array element 12=                        0
un-sorted array element 13=                  2702765
un-sorted array element 14=                        0
un-sorted array element 15=               -199360981
un-sorted array element 16=                        0
un-sorted array element 17=              19391512145
un-sorted array element 18=                        0
un-sorted array element 19=           -2404879675441
un-sorted array element 20=                        0
un-sorted array element 21=          370371188237525

---------------   sorted----------------
sorted array element  1=           -2404879675441
sorted array element  2=               -199360981
sorted array element  3=                   -50521
sorted array element  4=                      -61
sorted array element  5=                       -1
sorted array element  6=                        0
sorted array element  7=                        0
sorted array element  8=                        0
sorted array element  9=                        0
sorted array element 10=                        0
sorted array element 11=                        0
sorted array element 12=                        0
sorted array element 13=                        0
sorted array element 14=                        0
sorted array element 15=                        0
sorted array element 16=                        1
sorted array element 17=                        5
sorted array element 18=                     1385
sorted array element 19=                  2702765
sorted array element 20=              19391512145
sorted array element 21=          370371188237525

```

```NetRexx
/* NetRexx */
options replace format comments java crossref savelog symbols

/*REXX program to sort an interesting integer list.*/

bell = '1 1 2 5 15 52 203 877 4140 21147 115975'      /*some Bell numbers.*/
bern = '1 -1 1 0 -1 0 1 0 -1 0 5 0 -691 0 7 0 -3617'  /*some Bernoulli num*/
perrin = '3 0 2 3 2 5 5 7 10 12 17 22 29 39 51 68 90' /*some Perrin nums. */
list = bell bern perrin                               /*combine the three.*/

size = list.words

a = 0
loop j = 1 for size
a[j] = list.word(j)
end j

say '  as is='list
a[0] = size
esort(a, size)
bList = ''

loop j = 1 for size
bList = bList a[j]
end j

blist = bList.strip
say ' sorted='bList

return

/*----------------------------------ESORT subroutine--------------------*/
method esort(a, size) public static
--esort: procedure expose a.;

h = a[0]

loop while h > 1
h = h % 2
loop i = 1 for a[0] - h
j = i
k = h + i
loop while a[k] < a[j]
t    = a[j]
a[j] = a[k]
a[k] = t
if h >= j then leave
j = j - h
k = k - h
end
end i
end

return
```

'''Output'''
as is=1 1 2 5 15 52 203 877 4140 21147 115975 1 -1 1 0 -1 0 1 0 -1 0 5 0 -691 0 7 0 -3617 3 0 2 3 2 5 5 7 10 12 17 22 29 39 51 68 90
sorted=-3617 -691 -1 -1 -1 0 0 0 0 0 0 0 0 1 1 1 1 1 2 2 2 3 3 5 5 5 5 7 7 10 12 15 17 22 29 39 51 52 68 90 203 877 4140 21147 115975

```

## Nial

```nial>sort
= 9 6 8 7 1 10
= 10 9 8 7 6 1
```

## Nim

```nim
import algorithm

var a: array[0..8,int] = [2,3,5,8,4,1,6,9,7]
a.sort(system.cmp[int], Ascending)
for x in a:
echo(x)
```

{{out}}

```txt
1
2
3
4
5
6
7
8
9
```

## Niue

'''Library'''

```Niue
2 6 1 0 3 8 sort .s
0 1 2 3 6 8
```

```objc
NSArray *nums = @[@2, @4, @3, @1, @2];
NSArray *sorted = [nums sortedArrayUsingSelector:@selector(compare:)];
```

## Objeck

```objeck
bundle Default {
class Sort {
function : Main(args : System.String[]) ~ Nil {
nums := Structure.IntVector->New([2,4,3,1,2]);
nums->Sort();
}
}
}
```

## OCaml

### Array

```ocaml
let nums = [|2; 4; 3; 1; 2|]
Array.sort compare nums
```

### List

```ocaml
let nums = [2; 4; 3; 1; 2]
let sorted = List.sort compare nums
```

## Octave

The variable v can be a vector or a matrix (columns will be sorted).

```octave
sortedv = sort(v);
```

## Oforth

```Oforth
[ 8, 2, 5, 9, 1, 3, 6, 7, 4 ] sort
```

## ooRexx

```rexx
a = .array~of(4, 1, 6, -2, 99, -12)
say "The sorted numbers are"
say a~sortWith(.numericComparator~new)~makeString
```

Output:

```txt

The sorted numbers are
-12
-2
1
4
6
99

```

## Order

Passing the less-than operator to the built-in sequence (i.e. list) sort function:

```c
#include

ORDER_PP( 8seq_sort(8less, 8seq(2, 4, 3, 1, 2)) )
```

## Oz

```oz
declare
Nums = [2 4 3 1 2]
Sorted = {List.sort Nums Value.'<'}
in
{Show Sorted}
```

## PARI/GP

```parigp
vecsort(v)
```

## Peloton

Sorting a list of numbers as strings and as numbers (from the manual.)

```sgml
Construct a list of numbers
<@ LETCNSLSTLIT>L|65^84^1^25^77^4^47^2^42^44^41^25^69^3^51^45^4^39^
Numbers sort as strings
<@ ACTSRTENTLST>L
<@ SAYDMPLST>L
<@ ACTSRTENTLSTLIT>L|__StringDescending
<@ SAYDMPLST>L

Construct another list of numbers
<@ LETCNSLSTLIT>list|65^84^1^25^77^4^47^2^42^44^41^25^69^3^51^45^4^39^
Numbers sorted as numbers
<@ ACTSRTENTLSTLIT>list|__Numeric
<@ SAYDMPLST>list
<@ ACTSRTENTLSTLIT>list|__NumericDescending
<@ SAYDMPLST>list
```

Output

```html
Construct a list of numbers

Numbers sort as strings

1^2^25^25^3^39^4^4^41^42^44^45^47^51^65^69^77^84^

84^77^69^65^51^47^45^44^42^41^4^4^39^3^25^25^2^1^

Construct another list of numbers

Numbers sorted as numbers

1^2^3^4^4^25^25^39^41^42^44^45^47^51^65^69^77^84^

84^77^69^65^51^47^45^44^42^41^39^25^25^4^4^3^2^1^
```

## Perl

{{works with|Perl|5.8.6}}

```perl
@nums = (2,4,3,1,2);
@sorted = sort {\$a <=> \$b} @nums;
```

## Perl 6

If `@a` contains only numbers:

```perl6>my @sorted = sort @a;@a .= sort;
```

## PicoLisp

The [http://software-lab.de/doc/refS.html#sort sort] function in PicoLisp
returns already by default an ascending list (of any type, not only integers):

```PicoLisp
(sort (2 4 3 1 2))
-> (1 2 2 3 4)
```

## PL/I

{{works with|IBM PL/I|7.5}}

```pli
DCL (T(10)) FIXED BIN(31); /* scratch space of length N/2 */

MERGE: PROCEDURE (A,LA,B,LB,C);
DECLARE (A(*),B(*),C(*)) FIXED BIN(31);
DECLARE (LA,LB) FIXED BIN(31) NONASGN;
DECLARE (I,J,K) FIXED BIN(31);

I=1; J=1; K=1;
DO WHILE ((I <= LA) & (J <= LB));
IF(A(I) <= B(J)) THEN
DO; C(K)=A(I); K=K+1; I=I+1; END;
ELSE
DO; C(K)=B(J); K=K+1; J=J+1; END;
END;
DO WHILE (I <= LA);
C(K)=A(I); I=I+1; K=K+1;
END;
RETURN;
END MERGE;

MERGESORT: PROCEDURE (A,N) RECURSIVE ;
DECLARE (A(*))               FIXED BINARY(31);
DECLARE N                    FIXED BINARY(31) NONASGN;
DECLARE Temp                 FIXED BINARY;
DECLARE (M,I)                FIXED BINARY;
DECLARE AMP1(N)              FIXED BINARY(31) BASED(P);
DECLARE P POINTER;
IF (N=1) THEN RETURN;
M = trunc((N+1)/2);
IF (M>1) THEN CALL MERGESORT(A,M);
IF (N-M > 1) THEN CALL MERGESORT(AMP1,N-M);
IF A(M) <= AMP1(1) THEN RETURN;
DO I=1 to M; T(I)=A(I); END;
CALL MERGE(T,M,AMP1,N-M,A);
RETURN;
END MERGESORT;
```

## Pop11

Pop11 library function sorts lists. So we first convert array to list, then sort and finally convert back:

```pop11
lvars ar = {2 4 3 1 2};
;;; Convert array to list.
;;; destvector leaves its results and on the pop11 stack + an integer saying how many there were
destvector(ar);
;;; conslist uses the items left on the stack plus the integer, to make a list of those items.
lvars ls = conslist();
;;; Sort it
sort(ls) -> ls;
;;; Convert list to array
destlist(ls);
consvector() -> ar;
```

The above can be abbreviated to more economical, but possibly more opaque, syntax, using pop11 as a functional language:

```pop11
lvars ar = {2 4 3 1 2};
consvector(destlist(sort(conslist(destvector(ar))))) -> ar;
;;; print the sorted vector:
ar =>
** {1 2 2 3 4}
```

(The list created by conslist will be garbage-collected.)

Alternatively, using the datalist function, even more economically:

```pop11
lvars ar = {2 4 3 1 2};
consvector(destlist(sort(datalist(ar)))) -> ar;
```

or in Forth-like pop11 postfix syntax:

```pop11
lvars ar = {2 4 3 1 2};
ar.datalist.sort.destlist.consvector -> ar;
```

## Potion

```potion
(7, 5, 1, 2, 3, 8, 9) sort join(", ") print
```

## PowerBASIC

PowerBASIC has several options available for sorting. At its simplest, an array (of any type) is sorted using `ARRAY SORT`:

```powerbasic
ARRAY SORT x()
```

Options are available to limit sorting to only part of the array, collate string arrays, sort multiple arrays together, etc. (Details [http://www.powerbasic.com/support/help/pbwin/html/ARRAY_SORT_statement.htm here].)

## PowerShell

```powershell
34,12,23,56,1,129,4,2,73 | Sort-Object
```

## Prolog

```txt
?- msort([10,5,13,3, 85,3,1], L).
L = [1,3,3,5,10,13,85].
```

Note that [http://www.swi-prolog.org/pldoc/man?predicate=sort/2 sort/2] removes duplicates.

## PureBasic

```PureBasic
Dim numbers(20)
For i = 0 To 20
numbers(i) = Random(1000)
Next

SortArray(numbers(), #PB_Sort_Ascending)
```

## Python

{{works with|Python|2.3}}

```python
nums = [2,4,3,1,2]
nums.sort()
```

'''Note:''' The array nums is sorted in place.

'''Interpreter:''' [[Python]] 2.4 (and above)

You could also use the built-in sorted() function

```python
nums = sorted([2,4,3,1,2])
```

## R

```r
nums <- c(2,4,3,1,2)
sorted <- sort(nums)
```

## Racket

```Racket

-> (sort '(1 9 2 8 3 7 4 6 5) <)
'(1 2 3 4 5 6 7 8 9)

```

## Rascal

Rascal has a built-in sort function that sort the elements of a list. Additionally, one can give a LessThenOrEqual function to compare the elements (See [http://tutor.rascal-mpl.org/Courses/Rascal/Rascal.html#/Courses/Rascal/Libraries/Prelude/List/sort/sort.html documentation]).

```rascal>rascal
import List;
ok

rascal>a = [1, 4, 2, 3, 5];
list[int]: [1,4,2,3,5]

rascal>sort(a)
list[int]: [1,2,3,4,5]

rascal>sort(a, bool(int a, int b){return a >= b;})
list[int]: [5,4,3,2,1]
```

## Raven

Sort list in place:

```raven
[ 2 4 3 1 2 ] sort
```

## REBOL

```rebol
sort [2 4 3 1 2]
```

## Red

```Red>>
nums: [3 2 6 4 1 9 0 5 7]
== [3 2 6 4 1 9 0 5 7]
>> sort nums
== [0 1 2 3 4 5 6 7 9]
```

## REXX

### sort an array

This REXX version creates an array with over a score of Euler numbers (integers), then sorts it.

```rexx
/*REXX program sorts an array (using E─sort), in this case, the array contains integers.*/
numeric digits 30                                /*enables handling larger Euler numbers*/
@.  =              0;            @.1 =               1
@.3 =             -1;            @.5 =               5
@.7 =            -61;            @.9 =            1385
@.11=         -50521;            @.13=         2702765
@.15=     -199360981;            @.17=     19391512145
@.19= -2404879675441;            @.21= 370371188237525
#= 21                                            /*indicate there're  21 Euler  numbers.*/
call tell  'unsorted'                            /*display the array before the  eSort. */
call eSort     #                                 /*sort the array of some Euler numbers.*/
call tell  '  sorted'                            /*display the array  after  the eSort. */
exit                                             /*stick a fork in it,  we're all done. */
/*──────────────────────────────────────────────────────────────────────────────────────*/
eSort: procedure expose @.;   parse arg N;     h=N                   /*an eXchange sort.*/
do  while h>1;                   h= h%2                /*define a segment.*/
do i=1  for N-h;              j=i;     k= h+i       /*sort top segment.*/
do  while  @.k<@.j                               /*see if need swap.*/
parse value  @.j @.k   with   @.k @.j        /*swap two elements*/
if h>=j  then leave;   j= j-h;   k= k-h      /*this part sorted?*/
end   /*while @.k<@.j*/
end       /*i*/
end             /*while h>1*/
return
/*──────────────────────────────────────────────────────────────────────────────────────*/
tell:  say copies('─', 65);       _= left('',9);                       w= length(#)
do j=1  for #;  say _ arg(1)  'array element'   right(j, w)"="right(@.j, 20)
end   /*j*/
return
```

{{out|output|text=  when using the default internal input:}}

```txt

─────────────────────────────────────────────────────────────────
unsorted array element  1=                   1
unsorted array element  2=                   0
unsorted array element  3=                  -1
unsorted array element  4=                   0
unsorted array element  5=                   5
unsorted array element  6=                   0
unsorted array element  7=                 -61
unsorted array element  8=                   0
unsorted array element  9=                1385
unsorted array element 10=                   0
unsorted array element 11=              -50521
unsorted array element 12=                   0
unsorted array element 13=             2702765
unsorted array element 14=                   0
unsorted array element 15=          -199360981
unsorted array element 16=                   0
unsorted array element 17=         19391512145
unsorted array element 18=                   0
unsorted array element 19=      -2404879675441
unsorted array element 20=                   0
unsorted array element 21=     370371188237525
─────────────────────────────────────────────────────────────────
sorted array element  1=      -2404879675441
sorted array element  2=          -199360981
sorted array element  3=              -50521
sorted array element  4=                 -61
sorted array element  5=                  -1
sorted array element  6=                   0
sorted array element  7=                   0
sorted array element  8=                   0
sorted array element  9=                   0
sorted array element 10=                   0
sorted array element 11=                   0
sorted array element 12=                   0
sorted array element 13=                   0
sorted array element 14=                   0
sorted array element 15=                   0
sorted array element 16=                   1
sorted array element 17=                   5
sorted array element 18=                1385
sorted array element 19=             2702765
sorted array element 20=         19391512145
sorted array element 21=     370371188237525

```

### sort a list

This REXX version creates a list with a bunch of interesting integers, then sorts it.

Because it so much more efficient to sort an array,   an array is built from the list,

it is then sorted,   and then the list is re-constituted.

```rexx
/*REXX program sorts  (using E─sort)  and displays a list of some interesting integers. */
Bell=  1 1 2 5 15 52 203 877 4140 21147 115975           /*a few  Bell          "     */
Bern= '1 -1 1 0 -1 0 1 0 -1 0 5 0 -691 0 7 0 -3617'      /*"  "   Bernoulli     "     */
Perrin=  3 0 2 3 2 5 5 7 10 12 17 22 29 39 51 68 90        /*"  "   Perrin        "     */
list=Bell  Bern  Perrin                                    /*throw them all ───► a pot. */
say 'unsorted =' list                                      /*display what's being shown.*/
size=words(list)                                           /*nice to have # of elements.*/
do j=1  for size             /*build an array, a single   */
@.j=word(list,j)             /*     ··· element at a time.*/
end    /*j*/
call eSort size                                            /*sort the collection of #s. */
\$=                                                         /*list: define as null so far*/
do k=1  for size             /*build a list from the array*/
\$=\$ @.k                      /*append a number to the list*/
end    /*k*/
say '  sorted =' space(\$)                                  /*display the sorted list.   */
exit                                              /*stick a fork in it,  we're all done.*/
/*──────────────────────────────────────────────────────────────────────────────────────*/
eSort: procedure expose @.;   parse arg N;     h=N                   /*an eXchange sort.*/
do  while h>1;                   h= h%2                /*define a segment.*/
do i=1  for N-h;              j=i;     k= h+i       /*sort top segment.*/
do  while  @.k<@.j                               /*see if need swap.*/
parse value  @.j @.k   with   @.k @.j        /*swap two elements*/
if h>=j  then leave;   j= j-h;   k= k-h      /*this part sorted?*/
end   /*while @.k<@.j*/
end       /*i*/
end             /*while h>1*/
return
```

{{out|output|text=  when using the default internal inputs:}}

```txt

unsorted = 1 1 2 5 15 52 203 877 4140 21147 115975 1 -1 1 0 -1 0 1 0 -1 0 5 0 -691 0 7 0 -3617 3 0 2 3 2 5 5 7 10 12 17 22 29 39 51 68 90
sorted = -3617 -691 -1 -1 -1 0 0 0 0 0 0 0 0 1 1 1 1 1 2 2 2 3 3 5 5 5 5 7 7 10 12 15 17 22 29 39 51 52 68 90 203 877 4140 21147 115975

```

## Ring

```ring
aArray = [2,4,3,1,2]
see sort(aArray)
```

## Ruby

```ruby
nums = [2,4,3,1,2]
sorted = nums.sort      # returns a new sorted array.  'nums' is unchanged
p sorted                #=> [1, 2, 2, 3, 4]
p nums                  #=> [2, 4, 3, 1, 2]

nums.sort!              # sort 'nums' "in-place"
p nums                  #=> [1, 2, 2, 3, 4]
```

## Rust

Uses merge sort in place (undocumented), allocating ~2*n memory where n is a length of an array.

```rust
fn main() {
let mut a = vec!(9, 8, 7, 6, 5, 4, 3, 2, 1, 0);

a.sort();
println!("{:?}", a);
}
```

## Scala

### Array

Scala's "default" Array is a ''mutable'' data structure, very close to Java's Array. Generally speaking, that means an "array" is not very Scala-lesque, even as mutable data structures go. It can serves a purpose, though. If array is the right data type for your need, then that is how you sort it.
```Scala
import scala.compat.Platform

object Sort_an_integer_array extends App {
val array = Array((for (i <- 0 to 10) yield scala.util.Random.nextInt()):
_* /*Sequence is passed as multiple parameters to Array(xs : T*)*/)

/** Function test the array if it is in order */
def isSorted[T](arr: Array[T]) = array.sliding(2).forall(pair => pair(0) <= pair(1))

assert(!isSorted(array), "Not random")
scala.util.Sorting.quickSort(array)
assert(isSorted(array), "Not sorted")

println(s"Array in sorted order.\nSuccessfully completed without errors. [total \${Platform.currentTime - executionStart} ms]")
}
```

### List

```Scala
println(List(5,2,78,2,578,-42).sorted)
//--> List(-42, 2, 2, 5, 78, 578)
```

## Scheme

{{works with|Guile}}
Same as [[Common Lisp]]

```scheme
(sort #(9 -2 1 2 8 0 1 2) #'<)
```

Sorting is also available through SRFIs.  SRFI 132 provides separate list-sort and vector-sort routines:

```scheme

> (import (srfi 132))
> (list-sort < '(9 -2 1 2 8 0 1 2))
(-2 0 1 1 2 2 8 9)

> (vector-sort < #(9 -2 1 2 8 0 1 2))
#(-2 0 1 1 2 2 8 9)

```

SRFI 132 replaced the older SRFI 95, which is still found in many implementations.  SRFI 95 provides a generic sort function (but note the order of the sequence and comparator!):

```scheme

> (import (srfi 95))
> (sort '(9 -2 1 2 8 0 1 2) <)
(-2 0 1 1 2 2 8 9)
> (sort #(9 -2 1 2 8 0 1 2) <)
#(-2 0 1 1 2 2 8 9)

```

## Seed7

```seed7
var array integer: nums is [] (2, 4, 3, 1, 2);

nums := sort(nums);
```

## Sidef

```ruby
var nums = [2,4,3,1,2];
var sorted = nums.sort;  # returns a new sorted array.
nums.sort!;              # sort 'nums' "in-place"
```

## Slate

```slate
#(7 5 2 9 0 -1) sort
```

## Smalltalk

```smalltalk
#(7 5 2 9 0 -1) asSortedCollection
```

or destructive:

```smalltalk
#(7 5 2 9 0 -1) sort
```

## Sparkling

```sparkling
var arr = { 2, 8, 1, 4, 6, 5, 3, 7, 0, 9 };
sort(arr);
```

## Standard ML

The Standard ML Basis library does not have any sorting facilities. But each implementation of Standard ML has its own.

### Array

{{works with|SML/NJ}}

```sml
- val nums = Array.fromList [2, 4, 3, 1, 2];
val nums = [|2,4,3,1,2|] : int array
- ArrayQSort.sort Int.compare nums;
val it = () : unit
- nums;
val it = [|1,2,2,3,4|] : int array
```

{{works with|Moscow ML}}

```sml
> val it = () : unit
> val it = () : unit
- val nums = Array.fromList [2, 4, 3, 1, 2];
> val nums =  : int array
- Arraysort.sort Int.compare nums;
> val it = () : unit
- Array.foldr op:: [] nums;
> val it = [1, 2, 2, 3, 4] : int list
```

### List

{{works with|SML/NJ}}

```sml
- val nums = [2, 4, 3, 1, 2];
val nums = [2,4,3,1,2] : int list
- val sorted = ListMergeSort.sort op> nums;
val sorted = [1,2,2,3,4] : int list
```

{{works with|Moscow ML}}

```sml
> val it = () : unit
> val it = () : unit
- val nums = [2, 4, 3, 1, 2];
> val nums = [2, 4, 3, 1, 2] : int list
- val sorted = Listsort.sort Int.compare nums;
> val sorted = [1, 2, 2, 3, 4] : int list
```

## Stata

###  Sort a Stata dataset

See '''[https://www.stata.com/help.cgi?sort sort]''' in Stata help.

```stata
. clear
. matrix a=(2,9,4,7,5,3,6,1,8)'
. qui svmat a
. sort a
. list

+----+
| a1 |
|----|
1. |  1 |
2. |  2 |
3. |  3 |
4. |  4 |
5. |  5 |
|----|
6. |  6 |
7. |  7 |
8. |  8 |
9. |  9 |
+----+
```

###  Sort a macro list

See '''[https://www.stata.com/help.cgi?macrolists macrolists]''' in Stata help for other functions on lists stored in macros.

```stata
. local a 2 9 4 7 5 3 6 1 8
. di "`: list sort a'"
1 2 3 4 5 6 7 8 9
```

###  Mata

See Mata's '''[http://www.stata.com/help.cgi?mf_sort sort]''' function.

```stata
mata
: a=2\9\4\7\5\3\6\1\8

: sort(a,1)
1
+-----+
1 |  1  |
2 |  2  |
3 |  3  |
4 |  4  |
5 |  5  |
6 |  6  |
7 |  7  |
8 |  8  |
9 |  9  |
+-----+
end
```

## Swift

### Sort in place

{{works with|Swift|2.x+}}

```swift
var nums = [2, 4, 3, 1, 2]
nums.sortInPlace()
print(nums)
```

or

```swift
var nums = [2, 4, 3, 1, 2]
nums.sortInPlace(<)
print(nums)
```

{{works with|Swift|1.x}}

```swift
var nums = [2, 4, 3, 1, 2]
nums.sort(<)
println(nums)
```

or

```swift
var nums = [2, 4, 3, 1, 2]
sort(&nums)
println(nums)
```

or

```swift
var nums = [2, 4, 3, 1, 2]
sort(&nums, <)
println(nums)
```

### Return new array

You could also create a new sorted array without affecting the original one:

{{works with|Swift|2.x+}}

```swift
let nums = [2,4,3,1,2].sort()
print(nums)
```

or

```swift
let nums = [2,4,3,1,2].sort(<)
print(nums)
```

{{works with|Swift|1.x}}

```swift
let nums = sorted([2,4,3,1,2])
println(nums)
```

or

```swift
let nums = [2,4,3,1,2].sorted(<)
println(nums)
```

## Tcl

```tcl
set result [lsort -integer \$unsorted_list]
```

Store input into L1, run prgmSORTBTIN, and L2 will be L1, only sorted.
:L1→L2
:SortA(L2)
SortA is found via: [LIST] → ENTER. SortD is also available for a descending sort.

## Toka

This can be done by using the bubble sort library:

```toka
needs bsort
arrayname number_elements bsort
```

See the Toka entry on [[Bubble Sort]] for a full example.

## UNIX Shell

Each shell parameter separates the integers using the default IFS whitespace (space, tab, newline).

```bash
nums="2 4 3 1 5"
sorted=`printf "%s\n" \$nums | sort -n`
echo \$sorted  # prints 1 2 3 4 5
```

Alternate solution: sorted=`for i in \$nums; do echo \$i; done | sort -n`

----
Some shells have real arrays. You still need IFS to split the string from sort -n to an array.

{{works with|pdksh|5.2.14}}

```bash
set -A nums 2 4 3 1 5
set -A sorted \$(printf "%s\n" \${nums[*]} | sort -n)
echo \${sorted[*]}  # prints 1 2 3 4 5
```

Users of [[bash]], [[ksh93]] and [[mksh]] can probably use the nums=(2 4 3 1 2) syntax.

## Ursa

```ursa>decl int<
nums
append 2 4 3 1 2 nums
sort nums
```

## Ursala

using the built in sort operator, -<, with the nleq library function
for comparing natural numbers

```Ursala
#import nat

#cast %nL

example = nleq-< <39,47,40,53,14,23,88,52,78,62,41,92,88,66,5,40>
```

output:

```txt
<5,14,23,39,40,40,41,47,52,53,62,66,78,88,88,92>
```

## WDTE

```WDTE>let a =
import 'arrays';
a.sort [39; 47; 40; 53; 14; 23; 88; 52; 78; 62; 41; 92; 88; 66; 5; 40] < -- io.writeln io.stdout;
```

## Wortel

```wortel
@sort [39 47 40 53 14 23 88 52 78 62 41 92 88 66 5 40]
```

## XPL0

```XPL0
include c:\cxpl\codes;          \intrinsic 'code' declarations

proc    SSort(A, N);            \Shell sort array in ascending order
int     N;                      \number of elements in array (size)
int     I, J, Gap, JG, T;
[Gap:= N>>1;
while Gap > 0 do
[for I:= Gap to N-1 do
[J:= I - Gap;
loop    [JG:= J + Gap;
if A(J) <= A(JG) then quit;
T:= A(J);   A(J):= A(JG);   A(JG):= T;  \swap elements
J:= J - Gap;
if J < 0 then quit;
];
];
Gap:= Gap>>1;
];
];      \SSort

int A, I;
[A:= [3, 1, 4, 1, 5, 9, 2, 6, 5, 4];
SSort(A, 10);
for I:= 0 to 10-1 do [IntOut(0, A(I));  ChOut(0, ^ )];
CrLf(0);
]
```

Output:

```txt

1 1 2 3 4 4 5 5 6 9

```

## Yabasic

```Yabasic
export sub shell_sort(x())
// Shell sort based on insertion sort

local gap, i, j, first, last, tempi, tempj

last = arraysize(x(),1)
gap = int(last / 10) + 1
while(TRUE)
first = gap + 1
for i = first to last
tempi = x(i)
j = i - gap
while(TRUE)
tempj = x(j)
if tempi >= tempj then
j = j + gap
break
end if
x(j+gap) = tempj
if j <= gap then
break
end if
j = j - gap
wend
x(j) = tempi
next i
if gap = 1 then
return
else
gap = int(gap / 3.5) + 1
end if
wend
end sub

if peek\$("library") = "main" then

clear screen

ITEMS = 100
dim numeros(ITEMS)

for n = 1 to ITEMS
numeros(n) = ran(ITEMS + 1)
next n

print time\$
shell_sort(numeros())
print time\$
print "Press a key to see ordered numbers."
inkey\$

for n = 1 to ITEMS
print numeros(n),", ";
next n

end if
```

## Yorick

In Yorick, ''sort'' returns an index list into the array that will put it in sorted order.

```yorick

nums = [2,4,3,1,2];
nums = nums(sort(nums));

```

## zkl

```zkl
a:=L(4,5,2,6); a.sort(); a.println() //--> L(2,4,5,6)
```