1/*	$NetBSD$	*/
2
3/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
4     Written by James Clark (jjc@jclark.com)
5
6This file is part of groff.
7
8groff is free software; you can redistribute it and/or modify it under
9the terms of the GNU General Public License as published by the Free
10Software Foundation; either version 2, or (at your option) any later
11version.
12
13groff is distributed in the hope that it will be useful, but WITHOUT ANY
14WARRANTY; without even the implied warranty of MERCHANTABILITY or
15FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
16for more details.
17
18You should have received a copy of the GNU General Public License along
19with groff; see the file COPYING.  If not, write to the Free Software
20Foundation, 51 Franklin St - Fifth Floor, Boston, MA 02110-1301, USA. */
21
22unsigned hash(const char *s, int len)
23{
24#if 0
25  unsigned h = 0, g;
26  while (*s != '\0') {
27    h <<= 4;
28    h += *s++;
29    if ((g = h & 0xf0000000) != 0) {
30      h ^= g >> 24;
31      h ^= g;
32    }
33  }
34#endif
35  unsigned h = 0;
36  while (--len >= 0)
37    h = *s++ + 65587*h;
38  return h;
39}
40
41