39 lines
1.0 KiB
C++
39 lines
1.0 KiB
C++
/* Copyright (C) 1989, 1990, 1991, 1992 Free Software Foundation, Inc.
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Written by James Clark (jjc@jclark.com)
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This file is part of groff.
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groff is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
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groff is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License along
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with groff; see the file COPYING. If not, write to the Free Software
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Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
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unsigned hash(const char *s, int len)
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{
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#if 0
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unsigned h = 0, g;
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while (*s != '\0') {
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h <<= 4;
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h += *s++;
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if ((g = h & 0xf0000000) != 0) {
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h ^= g >> 24;
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h ^= g;
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}
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}
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#endif
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unsigned h = 0;
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while (--len >= 0)
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h = *s++ + 65587*h;
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return h;
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}
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