--- /dev/null
+#ifndef foollistfoo
+#define foollistfoo
+
+/***
+ This file is part of catta.
+
+ catta is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ catta is distributed in the hope that it will be useful, but WITHOUT
+ ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
+ Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with catta; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+***/
+
+/** \file llist.h A simple macro based linked list implementation */
+
+#include <assert.h>
+
+#include <catta/cdecl.h>
+
+CATTA_C_DECL_BEGIN
+
+/** The head of the linked list. Use this in the structure that shall
+ * contain the head of the linked list */
+#define CATTA_LLIST_HEAD(t,name) t *name
+
+/** The pointers in the linked list's items. Use this in the item structure */
+#define CATTA_LLIST_FIELDS(t,name) t *name##_next, *name##_prev
+
+/** Initialize the list's head */
+#define CATTA_LLIST_HEAD_INIT(t,head) do { (head) = NULL; } while(0)
+
+/** Initialize a list item */
+#define CATTA_LLIST_INIT(t,name,item) do { \
+ t *_item = (item); \
+ assert(_item); \
+ _item->name##_prev = _item->name##_next = NULL; \
+ } while(0)
+
+/** Prepend an item to the list */
+#define CATTA_LLIST_PREPEND(t,name,head,item) do { \
+ t **_head = &(head), *_item = (item); \
+ assert(_item); \
+ if ((_item->name##_next = *_head)) \
+ _item->name##_next->name##_prev = _item; \
+ _item->name##_prev = NULL; \
+ *_head = _item; \
+ } while (0)
+
+/** Remove an item from the list */
+#define CATTA_LLIST_REMOVE(t,name,head,item) do { \
+ t **_head = &(head), *_item = (item); \
+ assert(_item); \
+ if (_item->name##_next) \
+ _item->name##_next->name##_prev = _item->name##_prev; \
+ if (_item->name##_prev) \
+ _item->name##_prev->name##_next = _item->name##_next; \
+ else {\
+ assert(*_head == _item); \
+ *_head = _item->name##_next; \
+ } \
+ _item->name##_next = _item->name##_prev = NULL; \
+ } while(0)
+
+CATTA_C_DECL_END
+
+#endif