root/usr/src/cmd/spell/hash.h
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*      Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/*        All Rights Reserved   */


#ident  "%Z%%M% %I%     %E% SMI"        /* SVr4.0 1.2   */
#define HASHWIDTH 27
#define HASHSIZE 134217689L     /* prime under 2^HASHWIDTH */
#define INDEXWIDTH 9
#define INDEXSIZE (1<<INDEXWIDTH)
#define NI (INDEXSIZE+1)
#define ND ((25750/2) * sizeof (*table))
#define BYTE 8

extern unsigned *table;
extern int index[];     /* into dif table based on hi hash bits */

void    hashinit(void);
int     hashlook(char *);
unsigned long   hash(char *);