3 // Copyright (C) 2005, 2006 Free Software Foundation, Inc.
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the terms
7 // of the GNU General Public License as published by the Free Software
8 // Foundation; either version 2, or (at your option) any later
11 // This library is distributed in the hope that it will be useful, but
12 // WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // General Public License for more details.
16 // You should have received a copy of the GNU General Public License
17 // along with this library; see the file COPYING. If not, write to
18 // the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
19 // MA 02111-1307, USA.
21 // As a special exception, you may use this file as part of a free
22 // software library without restriction. Specifically, if other files
23 // instantiate templates or use macros or inline functions from this
24 // file, or you compile this file and link it with other files to
25 // produce an executable, this file does not by itself cause the
26 // resulting executable to be covered by the GNU General Public
27 // License. This exception does not however invalidate any other
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31 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
33 // Permission to use, copy, modify, sell, and distribute this software
34 // is hereby granted without fee, provided that the above copyright
35 // notice appears in all copies, and that both that copyright notice
36 // and this permission notice appear in supporting documentation. None
37 // of the above authors, nor IBM Haifa Research Laboratories, make any
38 // representation about the suitability of this software for any
39 // purpose. It is provided "as is" without express or implied
43 * @file cond_key_dtor_entry_dealtor.hpp
44 * Contains a conditional key destructor, used for exception handling.
52 #define PB_DS_CLASS_T_DEC template<typename HT_Map>
53 #define PB_DS_CLASS_C_DEC PB_DS_CKDED_CLASS_NAME<HT_Map>
56 * A conditional key destructor, used for exception handling.
58 template<typename HT_Map>
59 class PB_DS_CKDED_CLASS_NAME
62 typedef typename HT_Map::entry entry;
63 typedef typename HT_Map::entry_allocator entry_allocator;
64 typedef typename HT_Map::key_type key_type;
67 PB_DS_CKDED_CLASS_NAME(entry_allocator* p_a, entry* p_e);
70 ~PB_DS_CKDED_CLASS_NAME();
76 set_no_action_destructor();
79 entry_allocator* const m_p_a;
83 bool m_no_action_destructor;
89 PB_DS_CKDED_CLASS_NAME(entry_allocator* p_a, entry* p_e)
90 : m_p_a(p_a), m_p_e(p_e), m_key_destruct(false),
91 m_no_action_destructor(false)
98 { m_key_destruct = true; }
103 set_no_action_destructor()
104 { m_no_action_destructor = true; }
109 ~PB_DS_CKDED_CLASS_NAME()
111 if (m_no_action_destructor)
114 m_p_e->m_value.first.~key_type();
115 m_p_a->deallocate(m_p_e, 1);
118 #undef PB_DS_CLASS_T_DEC
119 #undef PB_DS_CLASS_C_DEC
121 } // namespace detail