From 25de5e761daab8b897a4f09ff8503e6f43c299f9 Mon Sep 17 00:00:00 2001 From: Uros Majstorovic Date: Wed, 3 May 2017 21:10:08 +0200 Subject: initial commit --- code/htable/hashtable_private.h | 84 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 84 insertions(+) create mode 100755 code/htable/hashtable_private.h (limited to 'code/htable/hashtable_private.h') diff --git a/code/htable/hashtable_private.h b/code/htable/hashtable_private.h new file mode 100755 index 0000000..2330b00 --- /dev/null +++ b/code/htable/hashtable_private.h @@ -0,0 +1,84 @@ +/* Copyright (C) 2002, 2004 Christopher Clark */ + +#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 (*fn_hash) (void *k); + int (*fn_eq) (void *k1, void *k2); + void *(*fn_malloc) (size_t); + void *(*fn_realloc) (void *,size_t); + void (*fn_free) (void *); + void (*fn_free_k) (void *); + void (*fn_free_v) (void *); +}; + +/*****************************************************************************/ +unsigned int +hashtable_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)); +} +*/ + +#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. +*/ -- cgit v1.2.3