forked from KolibriOS/kolibrios
432e5f16f8
git-svn-id: svn://kolibrios.org@6554 a494cfbc-eb01-0410-851d-a64ba20cac60
85 lines
2.7 KiB
C++
85 lines
2.7 KiB
C++
// -*- C++ -*-
|
|
|
|
// Copyright (C) 2005-2015 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 3, 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.
|
|
|
|
// Under Section 7 of GPL version 3, you are granted additional
|
|
// permissions described in the GCC Runtime Library Exception, version
|
|
// 3.1, as published by the Free Software Foundation.
|
|
|
|
// You should have received a copy of the GNU General Public License and
|
|
// a copy of the GCC Runtime Library Exception along with this program;
|
|
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
|
|
// <http://www.gnu.org/licenses/>.
|
|
|
|
// 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 detail/cond_dealtor.hpp
|
|
* Contains a conditional deallocator.
|
|
*/
|
|
|
|
#ifndef PB_DS_COND_DEALTOR_HPP
|
|
#define PB_DS_COND_DEALTOR_HPP
|
|
|
|
namespace __gnu_pbds
|
|
{
|
|
namespace detail
|
|
{
|
|
/// Conditional deallocate constructor argument.
|
|
template<typename Entry, typename _Alloc>
|
|
class cond_dealtor
|
|
{
|
|
typedef typename _Alloc::template rebind<Entry> __rebind_e;
|
|
|
|
public:
|
|
typedef typename __rebind_e::other entry_allocator;
|
|
typedef typename entry_allocator::pointer entry_pointer;
|
|
|
|
cond_dealtor(entry_pointer p_e)
|
|
: m_p_e(p_e), m_no_action_destructor(false) { }
|
|
|
|
~cond_dealtor()
|
|
{
|
|
if (m_no_action_destructor)
|
|
return;
|
|
s_alloc.deallocate(m_p_e, 1);
|
|
}
|
|
|
|
void
|
|
set_no_action()
|
|
{ m_no_action_destructor = true; }
|
|
|
|
private:
|
|
entry_pointer m_p_e;
|
|
bool m_no_action_destructor;
|
|
static entry_allocator s_alloc;
|
|
};
|
|
|
|
template<typename Entry, class _Alloc>
|
|
typename cond_dealtor<Entry, _Alloc>::entry_allocator
|
|
cond_dealtor<Entry, _Alloc>::s_alloc;
|
|
} // namespace detail
|
|
} // namespace __gnu_pbds
|
|
|
|
#endif // #ifndef PB_DS_COND_DEALTOR_HPP
|