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Diffstat (limited to 'libgnu/hash-pjw.c')
-rw-r--r-- | libgnu/hash-pjw.c | 40 |
1 files changed, 0 insertions, 40 deletions
diff --git a/libgnu/hash-pjw.c b/libgnu/hash-pjw.c deleted file mode 100644 index a886b499..00000000 --- a/libgnu/hash-pjw.c +++ /dev/null @@ -1,40 +0,0 @@ -/* hash-pjw.c -- compute a hash value from a NUL-terminated string. - - Copyright (C) 2001, 2003, 2006, 2009-2017 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 3 of the License, 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, see <http://www.gnu.org/licenses/>. */ - -#include <config.h> - -#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; -} |