62 lines
1.7 KiB
C++
62 lines
1.7 KiB
C++
/*
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* CDE - Common Desktop Environment
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*
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* Copyright (c) 1993-2012, The Open Group. All rights reserved.
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*
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* These libraries and programs are free software; you can
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* redistribute them and/or modify them under the terms of the GNU
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* Lesser General Public License as published by the Free Software
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* Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*
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* These libraries and programs are distributed in the hope that
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* they will be useful, but WITHOUT ANY WARRANTY; without even the
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* implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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* PURPOSE. See the GNU Lesser General Public License for more
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* details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with these librararies and programs; if not, write
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* to the Free Software Foundation, Inc., 51 Franklin Street, Fifth
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* Floor, Boston, MA 02110-1301 USA
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*/
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/* $XConsortium: HashTableItemBase.h /main/1 1996/07/29 16:53:09 cde-hp $ */
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// Copyright (c) 1994 James Clark
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// See the file COPYING for copying permission.
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#ifndef HashTableItemBase_INCLUDED
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#define HashTableItemBase_INCLUDED 1
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// All hash tables with the same type of key share object code.
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// The cost of this is a virtual dtor in HashTableItemBase.
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#ifdef SP_NAMESPACE
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namespace SP_NAMESPACE {
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#endif
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template<class K>
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class HashTableItemBase {
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public:
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HashTableItemBase(const K &k);
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virtual ~HashTableItemBase();
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virtual HashTableItemBase<K> *copy() const = 0;
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K key;
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};
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template<class K>
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struct HashTableKeyFunction {
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static inline const K &key(const HashTableItemBase<K> &obj) {
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return obj.key;
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}
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};
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#ifdef SP_NAMESPACE
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}
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#endif
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#endif /* not HashTableItemBase_INCLUDED */
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#ifdef SP_DEFINE_TEMPLATES
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#include "HashTableItemBase.C"
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#endif
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