/* Copyright Abandoned 1996 TCX DataKonsult AB & Monty Program KB & Detron HB   This file is public domain and comes with NO WARRANTY of any kind */#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,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