character_set.h

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/*****************************************************************************
*                                                                            *
*  -------------------------------- set.h ---------------------------------  *
*                                                                            *
*****************************************************************************/
 
#ifndef character_SET_H
#define character_SET_H
 
#include <stdlib.h>
#include <stdbool.h>
 
#include "character_list.h"
 
/*****************************************************************************
*                                                                            *
*  Implement sets as linked lists.                                           *
*                                                                            *
*****************************************************************************/
 
typedef character_list_t character_set_t;
 
/*****************************************************************************
*                                                                            *
*  --------------------------- Public Interface ---------------------------  *
*                                                                            *
*****************************************************************************/
 
void character_set_init(character_set_t *set);
 
void character_set_destroy (character_set_t *set);
 
int character_set_insert(character_set_t *set, char data);
 
int character_set_remove(character_set_t *set, char *data);
 
int character_set_union(character_set_t *setu, const character_set_t *set1,
    const character_set_t *set2);
 
int character_set_intersection(character_set_t *seti, const character_set_t *set1,
    const character_set_t *set2);
 
int character_set_difference(character_set_t *setd, const character_set_t *set1,
    const character_set_t *set2);
 
bool character_set_is_member(const character_set_t *set, char data);
 
bool character_set_is_subset(const character_set_t *set1, const character_set_t *set2);
 
bool character_set_is_equal(const character_set_t *set1, const character_set_t *set2);
 
int character_set_size(const character_set_t *set);
 
#endif