X-Git-Url: https://git.distorted.org.uk/~mdw/mLib/blobdiff_plain/573eadb534c42c4feace5e493cc135dd5e7b00d9..8f45ff6cb9a269fc6f8f631908f93b4c8123419c:/unihash.h

diff --git a/unihash.h b/unihash.h
index dfc5b79..22cecf9 100644
--- a/unihash.h
+++ b/unihash.h
@@ -1,13 +1,13 @@
 /* -*-c-*-
  *
- * $Id: unihash.h,v 1.2 2003/12/14 14:45:30 mdw Exp $
+ * $Id: unihash.h,v 1.4 2004/04/08 01:36:13 mdw Exp $
  *
  * Simple and efficient universal hashing for hashtables
  *
  * (c) 2003 Straylight/Edgeware
  */
 
-/*----- Licensing notice --------------------------------------------------* 
+/*----- Licensing notice --------------------------------------------------*
  *
  * This file is part of the mLib utilities library.
  *
@@ -15,29 +15,18 @@
  * it under the terms of the GNU Library General Public License as
  * published by the Free Software Foundation; either version 2 of the
  * License, or (at your option) any later version.
- * 
+ *
  * mLib 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 Library General Public License for more details.
- * 
+ *
  * You should have received a copy of the GNU Library General Public
  * License along with mLib; if not, write to the Free
  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  * MA 02111-1307, USA.
  */
 
-/*----- Revision history --------------------------------------------------* 
- *
- * $Log: unihash.h,v $
- * Revision 1.2  2003/12/14 14:45:30  mdw
- * Test universal hashing and fix bugs.
- *
- * Revision 1.1  2003/10/12 14:43:24  mdw
- * Universal hashing.
- *
- */
-
 #ifndef MLIB_UNIHASH_H
 #define MLIB_UNIHASH_H
 
@@ -138,6 +127,10 @@ typedef struct unihash_info {
   uint32 s[UNIHASH_NBATCH][4][256];	/* S-tables as described */
 } unihash_info;
 
+/*----- A global hash-info table ------------------------------------------*/
+
+extern unihash_info unihash_global;	/* Key this if you like */
+
 /*----- Functions provided ------------------------------------------------*/
 
 /* --- @unihash_setkey@ --- *
@@ -161,7 +154,7 @@ extern void unihash_setkey(unihash_info */*i*/, uint32 /*k*/);
  *
  * Returns:	Hash of data so far.
  *
- * Use:		Hashes data.  Call this as many times as needed.  
+ * Use:		Hashes data.  Call this as many times as needed.
  */
 
 #define UNIHASH_INIT(i) ((i)->s[0][0][1]) /* %$k$% */
@@ -178,7 +171,7 @@ extern uint32 unihash_hash(const unihash_info */*i*/, uint32 /*a*/,
  * Returns:	The hash value computed.
  *
  * Use:		All-in-one hashing function.  No faster than using the
- * 		separate calls, but more convenient.
+ *		separate calls, but more convenient.
  */
 
 #define UNIHASH(i, p, sz) (unihash_hash((i), UNIHASH_INIT((i)), (p), (sz)))