blackhole.c
author Markus Bröker <mbroeker@largo.dyndns.tv>
Thu, 16 Apr 2009 12:49:04 +0200
changeset 30 d037c433ec3e
parent 9 c3fecc82ade6
child 77 49e0babccb23
permissions -rw-r--r--
kleiner auffschrischungskurs compilerbau... committer: Markus Bröker <mbroeker@largo.homelinux.org>

/**
 * test/demos/blackhole.c
 * Copyright (C) 2008 Markus Broeker
 *
 * 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;
}