glibc/intl/hash-string.h
Roland McGrath 0f1316460c * intl/gettext.h: Renamed to ...
* intl/gmo.h: ... here.
	* intl/Makefile (distribute): Add gmo.h, remove gettext.h.
	* intl/gettextP.h: Update.
	* intl/loadmsgcat.c: Update.

	* intl/gettextP.h (PARAMS): Make more portable.
	(attribute_hidden): Define as empty macro if not already defined.
	* intl/hash-string.h (PARAMS): Make more portable.
	* intl/loadinfo.h (PARAMS): Likewise.
	* intl/plural-exp.h (PARAMS): Likewise.
	(attribute_hidden): Move definition near the definition of
	internal_function.

	* intl/gettextP.h (_nl_locale_name) [!_LIBC]: New declaration.
	* intl/plural-exp.h (plural_eval) [!_LIBC]: New declaration.

2002-07-13  Bruno Haible  <bruno@clisp.org>

	* intl/dcigettext.c (freea): New macro.
	(FREE_BLOCKS): Free also the registered blocks.
	(DCIGETTEXT): Free the 'search' variable.
	Reported by Andreas Fischer <a.fischer@asentics.de>.

2002-04-27  Bruno Haible  <bruno@clisp.org>

	* intl/gettextP.h [! _LIBC]: Use prefix libintl_ instead of suffix __.
	* intl/dcigettext.c: Likewise.
	* intl/dcgettext.c: Likewise.
	* intl/dgettext.c: Likewise.
	* intl/gettext.c: Likewise.
	* intl/dcngettext.c: Likewise.
	* intl/dngettext.c: Likewise.
	* intl/ngettext.c: Likewise.
	* intl/textdomain.c: Likewise.
	* intl/bindtextdom.c: Likewise.
	* intl/plural-exp.h: Likewise.

2002-01-02  Bruno Haible  <bruno@clisp.org>

	* intl/loadmsgcat.c (_nl_init_domain_conv): Use PARAMS in extern decl.

2001-04-30  Bruno Haible  <bruno@clisp.org>

	* intl/dcigettext.c (getuid, getgid, geteuid, getegid): Provide
	default macro definitions.  Needed for mingw32.
2002-12-11 22:59:29 +00:00

61 lines
1.9 KiB
C

/* Implements a string hashing function.
Copyright (C) 1995, 1997, 1998, 2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; 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__ || defined __GNUC__ || defined __SUNPRO_C || defined __cplusplus || __PROTOTYPES
# 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 int hash_string PARAMS ((const char *__str_param));
static inline unsigned long int
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 int) *str++;
g = hval & ((unsigned long int) 0xf << (HASHWORDBITS - 4));
if (g != 0)
{
hval ^= g >> (HASHWORDBITS - 8);
hval ^= g;
}
}
return hval;
}