fork download
copy 
  1. #include <stdlib.h>
  2. #include <stdio.h>
  3.  
  4. // function pointer .
  5. typedef int (*CompareFunc)(const void *, const void *);
  6.  
  7. int even_order(const void *first_arg, const void *second_arg)
  8. {
  9.     int first = *(int *)first_arg;
  10.     int second = *(int *)second_arg;
  11.     if (first < second)
  12.     {
  13.         return -1;
  14.     }
  15.     else if (first == second)
  16.     {
  17.         return 0;
  18.     }
  19.     else
  20.     {
  21.         return 1;
  22.     }
  23. }
  24.  
  25. // Function pointer a parametre veriyoruz .
  26. void sort(int array[], int size, CompareFunc compare)
  27. {
  28.     qsort(array, size, sizeof(int), compare);
  29. }
  30.  
  31. int main()
  32. {
  33.     int array[5];
  34.     int i;
  35.     /* fill array */
  36.     for (i = 0; i < 5; i++)
  37.     {
  38.         array[i] = 10 - 2 * i;
  39.     }
  40.  
  41.     // function pointer a sort uyguluyoruym .
  42.     sort(array, 5, even_order);
  43.  
  44.     for (i = 0; i < sizeof(array) / sizeof(int); i++)
  45.     {
  46.         printf("%d\n", array[i]);
  47.     }
  48.     return 0;
  49. }
  50.  
Success #stdin #stdout 0s 5288KB
comments (?)
stdin
copy 
Standard input is empty
stdout
copy 
2
4
6
8
10
https://ideone.com/EoxF8s
language:
C (gcc 8.3)
created:
14 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!