C语言库qsort()函数

#include <stdio.h>
#include <stdlib.h>

int values[] = { 88, 56, 100, 2, 25 };

int cmpfunc (const voID * a, const voID * b) {
   return ( *(int*)a - *(int*)b );
}

int main () {
   int n;

   printf("Before sorting the List is: \n");
   for( n = 0 ; n < 5; n++ ) {
      printf("%d ", values[n]);
   }

   qsort(values, 5, sizeof(int), cmpfunc);
   printf("\nAfter sorting the List is: \n");

   for( n = 0 ; n < 5; n++ ) {   
      printf("%d ", values[n]);
   }

   return(0);
}