/*

 *     $Id: blackhole.c,v 1.1.1.1 2008-04-28 17:32:53 mbroeker Exp $

 * $Source: /development/c/demos/blackhole.c,v $

 */

/* compile with -O0 or without optimizations or it won't crash */

#include <stdio.h>

#include <stdlib.h>

unsigned long blackhole (unsigned long i)

{

    /*

     * blackhole stops after a datatype overrun

     */

    if ((i + 1) < i)

        return i;

    if (!(i % 10000))

        printf ("Recursion %lu\n", i);

    return blackhole (i + 1);

}

int main (void)

{

    printf ("MAXIMUM RECURSION DEPTH ON YOUR MACHINE: %lu\n", blackhole (0));

    return EXIT_SUCCESS;

}