| // -*- C++ -*- |
| |
| // Copyright (C) 2005, 2006 Free Software Foundation, Inc. |
| // |
| // This file is part of the GNU ISO C++ Library. This library 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, or (at your option) any later |
| // version. |
| |
| // This library 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 library; see the file COPYING. If not, write to |
| // the Free Software Foundation, 59 Temple Place - Suite 330, Boston, |
| // MA 02111-1307, USA. |
| |
| // As a special exception, you may use this file as part of a free |
| // software library without restriction. Specifically, if other files |
| // instantiate templates or use macros or inline functions from this |
| // file, or you compile this file and link it with other files to |
| // produce an executable, this file does not by itself cause the |
| // resulting executable to be covered by the GNU General Public |
| // License. This exception does not however invalidate any other |
| // reasons why the executable file might be covered by the GNU General |
| // Public License. |
| |
| // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. |
| |
| // Permission to use, copy, modify, sell, and distribute this software |
| // is hereby granted without fee, provided that the above copyright |
| // notice appears in all copies, and that both that copyright notice |
| // and this permission notice appear in supporting documentation. None |
| // of the above authors, nor IBM Haifa Research Laboratories, make any |
| // representation about the suitability of this software for any |
| // purpose. It is provided "as is" without express or implied |
| // warranty. |
| |
| /** |
| * @file cond_dtor.hpp |
| * Contains a conditional destructor |
| */ |
| |
| template<typename Size_Type> |
| class cond_dtor |
| { |
| public: |
| cond_dtor(value_vector a_vec, iterator& r_last_it, Size_Type total_size) |
| : m_a_vec(a_vec), m_r_last_it(r_last_it), m_max_size(total_size), |
| m_no_action(false) |
| { } |
| |
| ~cond_dtor() |
| { |
| if (m_no_action) |
| return; |
| iterator it = m_a_vec; |
| while (it != m_r_last_it) |
| { |
| it->~value_type(); |
| ++it; |
| } |
| |
| if (m_max_size > 0) |
| value_allocator().deallocate(m_a_vec, m_max_size); |
| } |
| |
| inline void |
| set_no_action() |
| { m_no_action = true; } |
| |
| protected: |
| value_vector m_a_vec; |
| iterator& m_r_last_it; |
| const Size_Type m_max_size; |
| bool m_no_action; |
| }; |
