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