eliot/dic/hashtable.i
Olivier Teulière e7a8d01a8d Merged the "cppdic" branch back into HEAD.
There are too many change to list properly, here is an overview of the main changes:
 - the dictionary is now in C++
 - the dictionary has a new format, where it is possible to specify the letters,
   their points, their frequency, ... It is backwards compatible.
 - Eliot now supports non-ASCII characters everywhere
 - i18n of the compdic, listdic, regexpmain binaries
 - i18n of the wxWidgets interface (now in english by default)
2008-01-08 13:52:32 +00:00

88 lines
2.6 KiB
C++

/*****************************************************************************
* Eliot
* Copyright (C) 1999-2007 Antoine Fraboulet & Olivier Teulière
* Authors: Antoine Fraboulet
* Olivier Teulière <ipkiss @@ gmail.com>
*
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*****************************************************************************/
#include <cstdlib>
#include "hashtable.h"
template<typename KEY, typename VALUE, typename HASH_FCN>
HashTable<KEY, VALUE, HASH_FCN>::HashTable(unsigned int iSize)
: m_size(iSize)
{
m_nodes = new const Node*[m_size];
for (unsigned int i = 0; i < m_size; ++i)
{
m_nodes[i] = NULL;
}
}
template<typename KEY, typename VALUE, typename HASH_FCN>
HashTable<KEY, VALUE, HASH_FCN>::~HashTable()
{
for (unsigned int i = 0; i < m_size; ++i)
delete m_nodes[i];
delete[] m_nodes;
}
template<typename KEY, typename VALUE, typename HASH_FCN>
HashTable<KEY, VALUE, HASH_FCN>::Node::Node(const KEY &iKey, const VALUE &iValue, const Node *iNext)
: m_key(iKey), m_value(iValue), m_next(iNext)
{
}
template<typename KEY, typename VALUE, typename HASH_FCN>
HashTable<KEY, VALUE, HASH_FCN>::Node::~Node()
{
delete m_next;
}
template<typename KEY, typename VALUE, typename HASH_FCN>
const VALUE *HashTable<KEY, VALUE, HASH_FCN>::find(const KEY &iKey) const
{
HASH_FCN aHashFunc;
unsigned int h_key = aHashFunc(iKey) % m_size;
for (const Node *entry = m_nodes[h_key]; entry; entry = entry->m_next)
{
// Note: we need to be able to call == on a type KEY
if (entry->m_key == iKey)
{
return &entry->m_value;
}
}
return NULL;
}
template<typename KEY, typename VALUE, typename HASH_FCN>
void HashTable<KEY, VALUE, HASH_FCN>::add(const KEY &iKey, const VALUE &iValue)
{
HASH_FCN aHashFunc;
unsigned int h_key = aHashFunc(iKey) % m_size;
const Node *entry = new Node(iKey, iValue, m_nodes[h_key]);
m_nodes[h_key] = entry;
}
// vim: ft=cpp