| /**************************************************************/ |
| /* ********************************************************** */ |
| /* * * */ |
| /* * SIMPLE HASHING * */ |
| /* * * */ |
| /* * $Module: HASH * */ |
| /* * * */ |
| /* * Copyright (C) 1996, 1999, 2000, 2001 * */ |
| /* * MPI fuer Informatik * */ |
| /* * * */ |
| /* * 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 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, write * */ |
| /* * to the Free Software Foundation, Inc., 59 Temple * */ |
| /* * Place, Suite 330, Boston, MA 02111-1307 USA * */ |
| /* * * */ |
| /* * * */ |
| /* $Revision$ * */ |
| /* $State$ * */ |
| /* $Date$ * */ |
| /* $Author$ * */ |
| /* * * */ |
| /* * Contact: * */ |
| /* * Christoph Weidenbach * */ |
| /* * MPI fuer Informatik * */ |
| /* * Stuhlsatzenhausweg 85 * */ |
| /* * 66123 Saarbruecken * */ |
| /* * Email: weidenb@mpi-sb.mpg.de * */ |
| /* * Germany * */ |
| /* * * */ |
| /* ********************************************************** */ |
| /**************************************************************/ |
| |
| |
| /* $RCSfile$ */ |
| |
| #ifndef _HASH_ |
| #define _HASH_ |
| |
| /**************************************************************/ |
| /* Includes */ |
| /**************************************************************/ |
| |
| #include "list.h" |
| |
| |
| /**************************************************************/ |
| /* Structures */ |
| /**************************************************************/ |
| |
| #define hash__SIZE 29 /* a prime */ |
| |
| /* Each Entry is a list of pairs <key,value> */ |
| extern LIST hash_TABLE[hash__SIZE]; |
| |
| |
| /**************************************************************/ |
| /* Inline Functions */ |
| /**************************************************************/ |
| |
| static __inline__ NAT hash_Index(POINTER Key) |
| { |
| return (NAT)Key % hash__SIZE; |
| } |
| |
| static __inline__ LIST hash_List(NAT Index) |
| { |
| return hash_TABLE[Index]; |
| } |
| |
| static __inline__ void hash_PutList(NAT Index, LIST List) |
| { |
| hash_TABLE[Index] = List; |
| } |
| |
| static __inline__ void hash_Put(POINTER Key, POINTER Value) |
| { |
| hash_PutList(hash_Index(Key), list_Cons(list_PairCreate((POINTER)Key, Value), |
| hash_List(hash_Index(Key)))); |
| } |
| |
| |
| /**************************************************************/ |
| /* Functions */ |
| /**************************************************************/ |
| |
| void hash_Init(void); |
| void hash_Reset(void); |
| void hash_ResetWithValue(void (*)(POINTER)); |
| |
| POINTER hash_Get(POINTER); |
| |
| |
| #endif |
| |
| |
