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src/libmysql_std/include/my_list.h
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00001 /* Copyright (C) 2000 MySQL AB
00002 
00003    This program is free software; you can redistribute it and/or modify
00004    it under the terms of the GNU General Public License as published by
00005    the Free Software Foundation; version 2 of the License.
00006 
00007    This program is distributed in the hope that it will be useful,
00008    but WITHOUT ANY WARRANTY; without even the implied warranty of
00009    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00010    GNU General Public License for more details.
00011 
00012    You should have received a copy of the GNU General Public License
00013    along with this program; if not, write to the Free Software
00014    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */
00015 
00016 #ifndef _list_h_
00017 #define _list_h_
00018 
00019 #ifdef  __cplusplus
00020 extern "C" {
00021 #endif
00022 
00023 typedef struct st_list {
00024   struct st_list *prev,*next;
00025   void *data;
00026 } LIST;
00027 
00028 typedef int (*list_walk_action)(void *,void *);
00029 
00030 extern LIST *list_add(LIST *root,LIST *element);
00031 extern LIST *list_delete(LIST *root,LIST *element);
00032 extern LIST *list_cons(void *data,LIST *root);
00033 extern LIST *list_reverse(LIST *root);
00034 extern void list_free(LIST *root,unsigned int free_data);
00035 extern unsigned int list_length(LIST *);
00036 extern int list_walk(LIST *,list_walk_action action,gptr argument);
00037 
00038 #define list_rest(a) ((a)->next)
00039 #define list_push(a,b) (a)=list_cons((b),(a))
00040 #define list_pop(A) {LIST *old=(A); (A)=list_delete(old,old) ; my_free((gptr) old,MYF(MY_FAE)); }
00041 
00042 #ifdef  __cplusplus
00043 }
00044 #endif
00045 #endif
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