mirror of
https://gitlab.nic.cz/labs/bird.git
synced 2024-11-09 12:48:43 +00:00
43 lines
935 B
C
43 lines
935 B
C
/*
|
|
* BIRD Library -- Linked Lists
|
|
*
|
|
* (c) 1998 Martin Mares <mj@ucw.cz>
|
|
*
|
|
* Can be freely distributed and used under the terms of the GNU GPL.
|
|
*/
|
|
|
|
#ifndef _BIRD_LISTS_H_
|
|
#define _BIRD_LISTS_H_
|
|
|
|
typedef struct node {
|
|
struct node *next, *prev;
|
|
} node;
|
|
|
|
typedef struct list { /* In fact two overlayed nodes */
|
|
struct node *head, *null, *tail;
|
|
} list;
|
|
|
|
#define NODE (node *)
|
|
#define HEAD(list) ((void *)((list).head))
|
|
#define TAIL(list) ((void *)((list).tail))
|
|
#define WALK_LIST(n,list) for((n)=HEAD(list);(NODE (n))->next; \
|
|
n=(void *)((NODE (n))->next))
|
|
#define EMPTY_LIST(list) (!(list).head->next)
|
|
|
|
void add_tail(list *, node *);
|
|
void add_head(list *, node *);
|
|
void rem_node(node *);
|
|
void add_tail_list(list *, list *);
|
|
void init_list(list *);
|
|
void insert_node(node *, node *);
|
|
|
|
#ifndef _BIRD_LISTS_C_
|
|
#define LIST_INLINE extern inline
|
|
#include "lib/lists.c"
|
|
#undef LIST_INLINE
|
|
#else
|
|
#define LIST_INLINE
|
|
#endif
|
|
|
|
#endif
|