source: vendor/FreeBSD-libc/5.1/stdlib/remque.c

/*
 * Initial implementation:
 * Copyright (c) 2002 Robert Drehmel
 * All rights reserved.
 *
 * As long as the above copyright statement and this notice remain
 * unchanged, you can do what ever you want with this file. 
 */
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: src/lib/libc/stdlib/remque.c,v 1.3 2003/01/04 07:34:41 tjr Exp $");

#define _SEARCH_PRIVATE
#include <search.h>
#include <stdlib.h>     /* for NULL */

void
remque(void *element)
{
        struct que_elem *prev, *next, *elem;

        elem = (struct que_elem *)element;

        prev = elem->prev;
        next = elem->next;

        if (prev != NULL)
                prev->next = next;
        if (next != NULL)
                next->prev = prev;
}