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// -*- C++ -*-
// Copyright (C) 2005 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
*/
class cond_dtor
{
public:
cond_dtor(pointer 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(
const_cast<typename value_allocator::pointer>(m_a_vec),
m_max_size);
}
inline void
set_no_action()
{
m_no_action = true;
}
protected:
pointer m_a_vec;
iterator& m_r_last_it;
const size_type m_max_size;
bool m_no_action;
};
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