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# C array sort example

For sorting an array, we have used the qsort function. This function provides the implementation of quicksort algorithm to sort the elements of an array.

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# C array sort example

In this section, you will learn how to sort an array in C.

For sorting an array, we have used the qsort function. This function provides the implementation of quicksort algorithm to sort the elements of an array.

Syntax of the function:
qsort(array, sizeof(array), sizeof(type), comparison_fn).

In the example, we have created a comparison function sort to compare two elements. For this we have passed two parameters (x and y ) which are pointers to elements and will return an int value by comparing them. This method compares each pair of elements. This function can be declared as:
int sort (const void * x, const void * y );

(*(int*)x - *(int*)y)- The parameters x and y  checks for each pair of elements considering the elements as x and y. If x is found greater than y, then x goes before y otherwise, x goes after y. In case if x = y, then it remains on the same position.

<stdlib.h> - This header file stands for standard library which includes functions involving String, Memory, Environment, Sorting and Searching, Math and Multibyte

Here is the code:

ARRAYSOR.C

 ``` #include  #include  #include  int array[] = { 90, 3, 33, 28, 80, 49, 8, 30, 36, 25 }; int sort(const void *x, const void *y) {   return (*(int*)x - *(int*)y); } void main() {   clrscr();   int i;   qsort(array, 10, sizeof(int), sort);   for (i=0; i<10; i++) {   printf("%d ", array[i]);   }   getch(); }```

Output will be displayed as:

ARRAYSOR.EXE

# C array sort example

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Discuss: C array sort example   View All Comments

Subject (*):

James
June 15, 2011
x

this is not C, this is C++..
PRATEEK GERA
September 19, 2011
C

bhavesh patel
December 11, 2011
fundamentals of programming

its awesome ....
Ares Remo
December 17, 2011
weak!

Just be better next time...
Harmeet Singh
February 16, 2012
Sorting of array

how sort the array with with out use in build funtion
pranav.sivan
March 28, 2012
array sorting

how to sort elements in an array in ascending and descending order ,using bubble sort, selection sort
ben sarfo
May 7, 2012
programming

a beginner.
Gaylord Simpsan
November 28, 2012
Programming and Software Engeneering

I doesn't work, bro..
Hong VA
August 5, 2013
C programming

it not c