1/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
2
3 This library is free software; you can redistribute it and/or
4 modify it under the terms of the GNU Library General Public
5 License as published by the Free Software Foundation; either
6 version 2 of the License, or (at your option) any later version.
7
8 This library is distributed in the hope that it will be useful,
9 but WITHOUT ANY WARRANTY; without even the implied warranty of
10 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
11 Library General Public License for more details.
12
13 You should have received a copy of the GNU Library General Public
14 License along with this library; if not, write to the Free
15 Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
16 MA 02111-1301, USA */
17
18#ifndef _list_h_
19#define _list_h_
20
21#ifdef __cplusplus
22extern "C" {
23#endif
24
25typedef struct st_list {
26 struct st_list *prev,*next;
27 void *data;
28} LIST;
29
30typedef int (*list_walk_action)(void *,void *);
31
32extern LIST *list_add(LIST *root,LIST *element);
33extern LIST *list_delete(LIST *root,LIST *element);
34extern LIST *list_cons(void *data,LIST *root);
35extern LIST *list_reverse(LIST *root);
36extern void list_free(LIST *root,unsigned int free_data);
37extern unsigned int list_length(LIST *list);
38extern int list_walk(LIST *list,list_walk_action action,char * argument);
39
40#define list_rest(a) ((a)->next)
41#define list_push(a,b) (a)=list_cons((b),(a))
42#define list_pop(A) do {LIST *old=(A); (A)=list_delete(old,old) ; ma_free((char *) old,MYF(MY_FAE)); } while(0)
43
44#ifdef __cplusplus
45}
46#endif
47#endif
48