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Diffstat (limited to 'lib/hash-pjw.c')
-rw-r--r-- | lib/hash-pjw.c | 42 |
1 files changed, 0 insertions, 42 deletions
diff --git a/lib/hash-pjw.c b/lib/hash-pjw.c deleted file mode 100644 index 315277abb..000000000 --- a/lib/hash-pjw.c +++ /dev/null @@ -1,42 +0,0 @@ -/* hash-pjw.c -- compute a hash value from a NUL-terminated string. - Copyright (C) 2001, 2003 Free Software Foundation, Inc. - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2, or (at your option) - any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software Foundation, - Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ - -#ifdef HAVE_CONFIG_H -# include <config.h> -#endif - -#include "hash-pjw.h" - -#include <limits.h> - -#define SIZE_BITS (sizeof (size_t) * CHAR_BIT) - -/* A hash function for NUL-terminated char* strings using - the method described by Bruno Haible. - See http://www.haible.de/bruno/hashfunc.html. */ - -size_t -hash_pjw (const void *x, size_t tablesize) -{ - const char *s; - size_t h = 0; - - for (s = x; *s; s++) - h = *s + ((h << 9) | (h >> (SIZE_BITS - 9))); - - return h % tablesize; -} |