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


int intCompare( const void * ptr1, const void * ptr2 )
{
    int val1 =  *( (int *) ptr1 );
    int val2 =  *( (int *) ptr2 );
    
    if( val1 < val2 )
        return -1;
    else if( val1 == val2 )
        return 0;
    else
        return +1;
}

int main( )
{
    int N = 8;
    int arr[ ] = { 8, 1, 5, 4, 6, 7, 3, 2 };
    int i;

    for( i = 0; i < N; i++ )
        printf( "arr[%d]=%d\n", i, arr[ i ] );

    qsort( arr, N, sizeof( arr[ 0 ] ), intCompare );

    printf( "AFTER SORT!!!\n" );

    for( i = 0; i < N; i++ )
        printf( "arr[%d]=%d\n", i, arr[ i ] );


    return 0;
}