// -*- C++ -*-
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// -*- C++ -*-
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// Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.
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// Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.
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//
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the terms
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// software; you can redistribute it and/or modify it under the terms
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// of the GNU General Public License as published by the Free Software
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// of the GNU General Public License as published by the Free Software
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// Foundation; either version 3, or (at your option) any later
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// Foundation; either version 3, or (at your option) any later
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// version.
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// version.
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// This library is distributed in the hope that it will be useful, but
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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// General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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// <http://www.gnu.org/licenses/>.
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// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
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// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
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// Permission to use, copy, modify, sell, and distribute this software
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// Permission to use, copy, modify, sell, and distribute this software
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// is hereby granted without fee, provided that the above copyright
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// is hereby granted without fee, provided that the above copyright
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// notice appears in all copies, and that both that copyright notice
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// notice appears in all copies, and that both that copyright notice
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// and this permission notice appear in supporting documentation. None
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// and this permission notice appear in supporting documentation. None
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// of the above authors, nor IBM Haifa Research Laboratories, make any
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// of the above authors, nor IBM Haifa Research Laboratories, make any
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// representation about the suitability of this software for any
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// representation about the suitability of this software for any
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// purpose. It is provided "as is" without express or implied
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// purpose. It is provided "as is" without express or implied
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// warranty.
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// warranty.
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/**
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/**
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* @file cond_dtor.hpp
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* @file cond_dtor.hpp
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* Contains a conditional destructor
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* Contains a conditional destructor
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*/
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*/
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template<typename Size_Type>
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template<typename Size_Type>
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class cond_dtor
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class cond_dtor
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{
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{
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public:
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public:
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cond_dtor(value_vector a_vec, iterator& r_last_it, Size_Type total_size)
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cond_dtor(value_vector a_vec, iterator& r_last_it, Size_Type total_size)
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: m_a_vec(a_vec), m_r_last_it(r_last_it), m_max_size(total_size),
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: m_a_vec(a_vec), m_r_last_it(r_last_it), m_max_size(total_size),
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m_no_action(false)
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m_no_action(false)
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{ }
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{ }
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~cond_dtor()
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~cond_dtor()
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{
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{
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if (m_no_action)
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if (m_no_action)
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return;
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return;
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iterator it = m_a_vec;
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iterator it = m_a_vec;
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while (it != m_r_last_it)
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while (it != m_r_last_it)
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{
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{
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it->~value_type();
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it->~value_type();
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++it;
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++it;
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}
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}
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if (m_max_size > 0)
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if (m_max_size > 0)
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value_allocator().deallocate(m_a_vec, m_max_size);
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value_allocator().deallocate(m_a_vec, m_max_size);
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}
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}
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inline void
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inline void
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set_no_action()
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set_no_action()
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{ m_no_action = true; }
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{ m_no_action = true; }
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protected:
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protected:
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value_vector m_a_vec;
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value_vector m_a_vec;
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iterator& m_r_last_it;
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iterator& m_r_last_it;
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const Size_Type m_max_size;
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const Size_Type m_max_size;
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bool m_no_action;
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bool m_no_action;
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};
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};
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