/* Copyright (C) 2000 MySQL AB   This program is free software; you can redistribute it and/or modify   it under the terms of the GNU General Public License as published by   the Free Software Foundation; either version 2 of the License, or   (at your option) any later version.   This program 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 General Public License for more details.   You should have received a copy of the GNU General Public License   along with this program; 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	__cplusplusextern "C" {#endiftypedef 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,unsigned int free_data);extern unsigned int list_length(LIST *);extern int list_walk(LIST *,list_walk_action action,gptr argument);#define list_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