| /* Copyright (C) 2002, 2004 Christopher Clark <firstname.lastname@cl.cam.ac.uk> */ |
| |
| #ifndef __HASHTABLE_PRIVATE_CWC22_H__ |
| #define __HASHTABLE_PRIVATE_CWC22_H__ |
| |
| #include "hashtable.h" |
| |
| /*****************************************************************************/ |
| struct entry |
| { |
| void *k, *v; |
| unsigned int h; |
| struct entry *next; |
| }; |
| |
| struct hashtable { |
| unsigned int tablelength; |
| struct entry **table; |
| unsigned int entrycount; |
| unsigned int loadlimit; |
| unsigned int primeindex; |
| unsigned int (*hashfn) (void *k); |
| int (*eqfn) (void *k1, void *k2); |
| }; |
| |
| /*****************************************************************************/ |
| unsigned int |
| hash(struct hashtable *h, void *k); |
| |
| /*****************************************************************************/ |
| /* indexFor */ |
| static inline unsigned int |
| indexFor(unsigned int tablelength, unsigned int hashvalue) { |
| return (hashvalue % tablelength); |
| }; |
| |
| /* Only works if tablelength == 2^N */ |
| /*static inline unsigned int |
| indexFor(unsigned int tablelength, unsigned int hashvalue) |
| { |
| return (hashvalue & (tablelength - 1u)); |
| } |
| */ |
| |
| /*****************************************************************************/ |
| #define freekey(X) free(X) |
| /*define freekey(X) ; */ |
| |
| |
| /*****************************************************************************/ |
| |
| #endif /* __HASHTABLE_PRIVATE_CWC22_H__*/ |
| |
| /* |
| * Copyright (c) 2002, Christopher Clark |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * * Neither the name of the original author; nor the names of any contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER |
| * OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
