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48 lines
1.5 KiB
48 lines
1.5 KiB
5 years ago
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/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License as published by the Free Software Foundation; either
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version 2 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with this library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
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MA 02111-1307, USA */
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#ifndef _list_h_
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#define _list_h_
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#ifdef __cplusplus
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extern "C" {
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#endif
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typedef struct st_list {
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struct st_list *prev,*next;
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void *data;
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} LIST;
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typedef int (*list_walk_action)(void *,void *);
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extern LIST *list_add(LIST *root,LIST *element);
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extern LIST *list_delete(LIST *root,LIST *element);
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extern LIST *list_cons(void *data,LIST *root);
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extern LIST *list_reverse(LIST *root);
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extern void list_free(LIST *root,pbool free_data);
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extern uint list_length(LIST *list);
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extern int list_walk(LIST *list,list_walk_action action,gptr argument);
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#define rest(a) ((a)->next)
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#define list_push(a,b) (a)=list_cons((b),(a))
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#define list_pop(A) {LIST *old=(A); (A)=list_delete(old,old) ; my_free((gptr) old,MYF(MY_FAE)); }
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#ifdef __cplusplus
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}
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#endif
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#endif
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