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/*
* Copyright 2002 Adrian Thurston <thurston@complang.org>
*/
/* This file is part of Aapl.
*
* Aapl is free software; you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* Aapl 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 Lesser General Public License for
* more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Aapl; if not, write to the Free Software Foundation, Inc., 59
* Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef _AAPL_SBSTMAP_H
#define _AAPL_SBSTMAP_H
#include "compare.h"
#include "svector.h"
#ifdef AAPL_NAMESPACE
namespace Aapl {
#endif
/**
* \brief Element for BstMap.
*
* Stores the key and value pair.
*/
template <class Key, class Value> struct SBstMapEl
{
SBstMapEl() {}
SBstMapEl(const Key &key) : key(key) {}
SBstMapEl(const Key &key, const Value &val) : key(key), value(val) {}
/** \brief The key */
Key key;
/** \brief The value. */
Value value;
};
#ifdef AAPL_NAMESPACE
}
#endif
/**
* \addtogroup bst
* @{
*/
/**
* \class SBstMap
* \brief Copy-on-write binary search table for key and value pairs.
*
* This is a map style binary search table that employs the copy-on-write
* mechanism for table data. BstMap stores key and value pairs in each
* element. The key and value can be any type. A compare class for the key
* must be supplied.
*/
/*@}*/
#define BST_TEMPL_DECLARE class Key, class Value, \
class Compare = CmpOrd<Key>, class Resize = ResizeExpn
#define BST_TEMPL_DEF class Key, class Value, class Compare, class Resize
#define BST_TEMPL_USE Key, Value, Compare, Resize
#define GET_KEY(el) ((el).key)
#define BstTable SBstMap
#define Vector SVector
#define Table STable
#define Element SBstMapEl<Key, Value>
#define BSTMAP
#define SHARED_BST
#include "bstcommon.h"
#undef BST_TEMPL_DECLARE
#undef BST_TEMPL_DEF
#undef BST_TEMPL_USE
#undef GET_KEY
#undef BstTable
#undef Vector
#undef Table
#undef Element
#undef BSTMAP
#undef SHARED_BST
/**
* \fn SBstMap::insert(const Key &key, BstMapEl<Key, Value> **lastFound)
* \brief Insert the given key.
*
* If the given key does not already exist in the table then a new element
* having key is inserted. They key copy constructor and value default
* constructor are used to place the pair in the table. If lastFound is given,
* it is set to the new entry created. If the insert fails then lastFound is
* set to the existing pair of the same key.
*
* \returns The new element created upon success, null upon failure.
*/
/**
* \fn SBstMap::insertMulti(const Key &key)
* \brief Insert the given key even if it exists already.
*
* If the key exists already then the new element having key is placed next
* to some other pair of the same key. InsertMulti cannot fail. The key copy
* constructor and the value default constructor are used to place the pair in
* the table.
*
* \returns The new element created.
*/
#endif /* _AAPL_SBSTMAP_H */
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