diff options
Diffstat (limited to 'intl/hash-string.h')
-rw-r--r-- | intl/hash-string.h | 59 |
1 files changed, 0 insertions, 59 deletions
diff --git a/intl/hash-string.h b/intl/hash-string.h deleted file mode 100644 index cacb38e4..00000000 --- a/intl/hash-string.h +++ /dev/null @@ -1,59 +0,0 @@ -/* Implements a string hashing function. - Copyright (C) 1995, 1997 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 Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* @@ end of prolog @@ */ - -#ifndef PARAMS -# if __STDC__ -# define PARAMS(Args) Args -# else -# define PARAMS(Args) () -# endif -#endif - -/* We assume to have `unsigned long int' value with at least 32 bits. */ -#define HASHWORDBITS 32 - - -/* Defines the so called `hashpjw' function by P.J. Weinberger - [see Aho/Sethi/Ullman, COMPILERS: Principles, Techniques and Tools, - 1986, 1987 Bell Telephone Laboratories, Inc.] */ -static unsigned long hash_string PARAMS ((const char *__str_param)); - -static inline unsigned long -hash_string (str_param) - const char *str_param; -{ - unsigned long int hval, g; - const char *str = str_param; - - /* Compute the hash value for the given string. */ - hval = 0; - while (*str != '\0') - { - hval <<= 4; - hval += (unsigned long) *str++; - g = hval & ((unsigned long) 0xf << (HASHWORDBITS - 4)); - if (g != 0) - { - hval ^= g >> (HASHWORDBITS - 8); - hval ^= g; - } - } - return hval; -} |