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/* void_list.h - the opkg package management system
Carl D. Worth
Copyright (C) 2001 University of Southern California
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, 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.
*/
#ifndef VOID_LIST_H
#define VOID_LIST_H
typedef struct void_list_elt void_list_elt_t;
struct void_list_elt
{
void_list_elt_t *next;
void *data;
};
typedef struct void_list void_list_t;
struct void_list
{
void_list_elt_t pre_head;
void_list_elt_t *head;
void_list_elt_t *tail;
};
static inline int void_list_empty(void_list_t *list)
{
if (list->head == NULL)
return 1;
else
return 0;
}
int void_list_elt_init(void_list_elt_t *elt, void *data);
void void_list_elt_deinit(void_list_elt_t *elt);
int void_list_init(void_list_t *list);
void void_list_deinit(void_list_t *list);
int void_list_append(void_list_t *list, void *data);
int void_list_push(void_list_t *list, void *data);
void_list_elt_t *void_list_pop(void_list_t *list);
void *void_list_remove(void_list_t *list, void_list_elt_t **iter);
/* remove element containing elt data, using cmp(elt->data, target_data) == 0. */
typedef int (*void_list_cmp_t)(const void *, const void *);
void *void_list_remove_elt(void_list_t *list, const void *target_data, void_list_cmp_t cmp);
#endif
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