my_list.h
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上传日期:2019-04-29
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- /* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library 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
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- MA 02111-1307, USA */
- #ifndef _list_h_
- #define _list_h_
- #ifdef __cplusplus
- extern "C" {
- #endif
- typedef struct st_list {
- struct st_list *prev,*next;
- void *data;
- } LIST;
- typedef int (*list_walk_action)(void *,void *);
- extern LIST *list_add(LIST *root,LIST *element);
- extern LIST *list_delete(LIST *root,LIST *element);
- extern LIST *list_cons(void *data,LIST *root);
- extern LIST *list_reverse(LIST *root);
- extern void list_free(LIST *root,pbool free_data);
- extern uint list_length(LIST *list);
- extern int list_walk(LIST *list,list_walk_action action,gptr argument);
- #define rest(a) ((a)->next)
- #define list_push(a,b) (a)=list_cons((b),(a))
- #define list_pop(A) {LIST *old=(A); (A)=list_delete(old,old) ; my_free((gptr) old,MYF(MY_FAE)); }
- #ifdef __cplusplus
- }
- #endif
- #endif