2 * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
4 * This file is part of libFirm.
6 * This file may be distributed and/or modified under the terms of the
7 * GNU General Public License version 2 as published by the Free Software
8 * Foundation and appearing in the file LICENSE.GPL included in the
9 * packaging of this file.
11 * Licensees holding valid libFirm Professional Edition licenses may use
12 * this file in accordance with the libFirm Commercial License.
13 * Agreement provided with the Software.
15 * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
16 * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * @brief a pointer hashset (WARNING: deprecated, use hashset_new.*
24 * @author Hubert Schmid
28 #ifndef FIRM_ADT_ESET_H
29 #define FIRM_ADT_ESET_H
34 * "eset" is a set of addresses. The addresses are used for element
35 * compare and hash calculation.
36 * The value "NULL" can not be stored, as it is used as internal sentinel.
38 typedef struct eset eset;
40 /** Creates a new empty set. */
41 eset *eset_create(void);
44 * Creates a copy of the given set. Does NOT work if NULL is contained in source. */
45 eset *eset_copy(eset *source);
48 void eset_destroy(eset *s);
50 /** Returns the number of elements in the set. */
51 int eset_count(eset *s);
53 /** Inserts an address into the set. */
54 void eset_insert(eset *s, void *p);
56 /** Checks, whether an address is element of a set. */
57 int eset_contains(eset *s, void *p);
60 * Starts the iteration over a set and returns the first element or NULL
61 * if the set is empty.
63 * @note: It is NOT possible to add new elements while iterating through a set.
65 void *eset_first(eset *s);
68 * Continues iteration through a set and returns the next element or NULL if the
69 * iteration is finished.
71 * @note: It is NOT possible to add new elements while iterating through a set.
73 void *eset_next(eset *s);
75 /** Inserts all elements of source into target (union). Does NOT work if NULL is contained in source. */
76 void eset_insert_all(eset *target, eset *source);