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// -*- C++ -*- |
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// Copyright (C) 2005-2013 Free Software Foundation, Inc. |
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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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// 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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// Foundation; either version 3, or (at your option) any later |
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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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// 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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// 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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// 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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// 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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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
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// . |
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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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// 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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// 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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// 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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// warranty. |
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/** |
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* @file detail/cond_dealtor.hpp |
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* Contains a conditional deallocator. |
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*/ |
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#ifndef PB_DS_COND_DEALTOR_HPP |
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#define PB_DS_COND_DEALTOR_HPP |
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namespace __gnu_pbds |
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{ |
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namespace detail |
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{ |
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/// Conditional deallocate constructor argument. |
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template |
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class cond_dealtor |
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{ |
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typedef typename _Alloc::template rebind __rebind_e; |
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public: |
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typedef typename __rebind_e::other entry_allocator; |
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typedef typename entry_allocator::pointer entry_pointer; |
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cond_dealtor(entry_pointer p_e) |
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: m_p_e(p_e), m_no_action_destructor(false) { } |
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~cond_dealtor() |
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{ |
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if (m_no_action_destructor) |
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return; |
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s_alloc.deallocate(m_p_e, 1); |
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} |
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void |
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set_no_action() |
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{ m_no_action_destructor = true; } |
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private: |
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entry_pointer m_p_e; |
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bool m_no_action_destructor; |
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static entry_allocator s_alloc; |
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}; |
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template |
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typename cond_dealtor::entry_allocator |
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cond_dealtor::s_alloc; |
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} // namespace detail |
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} // namespace __gnu_pbds |
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#endif // #ifndef PB_DS_COND_DEALTOR_HPP |