about summary refs log tree commit diff
path: root/locale/hashval.h
diff options
context:
space:
mode:
authorUlrich Drepper <drepper@redhat.com>2002-04-18 08:08:23 +0000
committerUlrich Drepper <drepper@redhat.com>2002-04-18 08:08:23 +0000
commita7b65cdc9aae6ccbb5f652fcbcb7f32129bd8299 (patch)
treefe4d18c845102a586d924eb933092cc83c5b90de /locale/hashval.h
parentc77694049a23389267f9bb22135b393d824ba24c (diff)
downloadglibc-a7b65cdc9aae6ccbb5f652fcbcb7f32129bd8299.tar.gz
glibc-a7b65cdc9aae6ccbb5f652fcbcb7f32129bd8299.tar.xz
glibc-a7b65cdc9aae6ccbb5f652fcbcb7f32129bd8299.zip
Update.
2002-04-18  Ulrich Drepper  <drepper@redhat.com>

	* locale/programs/locfile.c (to_archive): New variable.  To collect
	data which has to be added to the locale archive.
	(write_all_categories): Take new third parameter with locale name.
	Unless no_archive flag set add new locale data to the archive
	(write_locale_data): Unless no-archive flag set store generated data
	in to_archive data structure instead of generation output file.
	Add new parameter with locale category index.
	* locale/programs/locfile.h: Add new parameters in declaractions of
	write_all_categories and write_locale_data.
	* locale/programs/localedef.c: Recognize --no-archive, --list-archive,
	--add-to-archive, and --delete-from-archive options.  Pass extra
	parameter to write_all_categories.
	* locale/programs/localedef.h: Add prototypes for functions in
	locarchive.c.
	* locale/locarchive.h: New file.
	* locale/programs/locarchive.c: New file.
	* locale/Makefile (distribute): Add programs/locarchive.c and
	locarchive.h.
	(localedef-modules): Add md5 and locarchive.
	Add vpath to crypt subdir for md5.c.

	* locale/programs/ld-address.c: Pass locale category ID as new second
	parameter to write_locale_data.
	* locale/programs/ld-collate.c: Likewise.
	* locale/programs/ld-ctype.c: Likewise.
	* locale/programs/ld-identification.c: Likewise.
	* locale/programs/ld-measurement.c: Likewise.
	* locale/programs/ld-messages.c: Likewise.
	* locale/programs/ld-monetary.c: Likewise.
	* locale/programs/ld-name.c: Likewise.
	* locale/programs/ld-numeric.c: Likewise.
	* locale/programs/ld-paper.c: Likewise.
	* locale/programs/ld-telephone.c: Likewise.
	* locale/programs/ld-time.c: Likewise.

	* locale/simple-hash.c: Move compute_hashval function from here...
	* locale/hashval.h: ...to here.  New file.
	* locale/simple-hash.h: Add prototype for compute_hashval.

	* include/libintl.h: Minor cleanups.

	* elf/reldep7.c: New file.
	* elf/reldep7mod1.c: New file.
	* elf/reldep7mod2.c: New file.
	* elf/Makefile: Add rules to build and run reldep7.
Diffstat (limited to 'locale/hashval.h')
-rw-r--r--locale/hashval.h41
1 files changed, 41 insertions, 0 deletions
diff --git a/locale/hashval.h b/locale/hashval.h
new file mode 100644
index 0000000000..15ec1244cf
--- /dev/null
+++ b/locale/hashval.h
@@ -0,0 +1,41 @@
+/* Implement simple hashing table with string based keys.
+   Copyright (C) 1994-1997, 2000, 2001, 2002 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Written by Ulrich Drepper <drepper@gnu.ai.mit.edu>, October 1994.
+
+   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.  */
+
+unsigned long
+compute_hashval (key, keylen)
+     const void *key;
+     size_t keylen;
+{
+  size_t cnt;
+  unsigned long int hval;
+
+  /* Compute the hash value for the given string.  The algorithm
+     is taken from [Aho,Sethi,Ullman], modified to reduce the number of
+     collisions for short strings with very varied bit patterns.
+     See http://www.clisp.org/haible/hashfunc.html.  */
+  cnt = 0;
+  hval = keylen;
+  while (cnt < keylen)
+    {
+      hval = (hval << 9) | (hval >> (LONGBITS - 9));
+      hval += (unsigned long int) *(((char *) key) + cnt++);
+    }
+  return hval != 0 ? hval : ~((unsigned long) 0);
+}