2 * Copyright (C) 1995-2007 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 Hash table to store names -- private header.
23 * @author Goetz Lindenmaier
26 #ifndef FIRM_IDENT_IDENT_T_H
27 #define FIRM_IDENT_IDENT_T_H
32 * Initialize the ident module.
34 * @param id_if The ident module interface, if NULL, the default
35 * libFirm ident module will be used.
36 * @param initial_n_idents Only used in the default libFirm ident module, initial
37 * number of entries in the hash table.
39 void init_ident (ident_if_t *id_if, int initial_n_idents);
42 * Finishes the ident module, frees all entries.
44 void finish_ident (void);
46 /** The hash function of the internal ident module implementation. */
47 #define ID_HASH(type, str, len) \
48 ((( ((type *)(str))[0] * 33 \
49 + ((type *)(str))[(len)>>1]) * 31 \
50 + ((type *)(str))[(len)-1]) * 9 \