blackhole.c
author Markus Bröker <mbroeker@largo.dyndns.tv>
Mon, 07 Jun 2010 23:20:47 +0200
changeset 132 54a04f5f141d
parent 77 49e0babccb23
permissions -rw-r--r--
Adjusted to show side effects and their handling When dealing with static buffers, successive calls point to the same memory location and overwrite formers ones... committer: Markus Bröker <mbroeker@largo.homelinux.org>

/**
 * 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;
}