1 // -*- C++ -*- 2 3 // Copyright (C) 2005, 2006 Free Software Foundation, Inc. 4 // 5 // This file is part of the GNU ISO C++ Library. This library is free 6 // software; you can redistribute it and/or modify it under the terms 7 // of the GNU General Public License as published by the Free Software 8 // Foundation; either version 2, or (at your option) any later 9 // version. 10 11 // This library is distributed in the hope that it will be useful, but 12 // WITHOUT ANY WARRANTY; without even the implied warranty of 13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14 // General Public License for more details. 15 16 // You should have received a copy of the GNU General Public License 17 // along with this library; see the file COPYING. If not, write to 18 // the Free Software Foundation, 59 Temple Place - Suite 330, Boston, 19 // MA 02111-1307, USA. 20 21 // As a special exception, you may use this file as part of a free 22 // software library without restriction. Specifically, if other files 23 // instantiate templates or use macros or inline functions from this 24 // file, or you compile this file and link it with other files to 25 // produce an executable, this file does not by itself cause the 26 // resulting executable to be covered by the GNU General Public 27 // License. This exception does not however invalidate any other 28 // reasons why the executable file might be covered by the GNU General 29 // Public License. 30 31 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 32 33 // Permission to use, copy, modify, sell, and distribute this software 34 // is hereby granted without fee, provided that the above copyright 35 // notice appears in all copies, and that both that copyright notice 36 // and this permission notice appear in supporting documentation. None 37 // of the above authors, nor IBM Haifa Research Laboratories, make any 38 // representation about the suitability of this software for any 39 // purpose. It is provided "as is" without express or implied 40 // warranty. 41 42 /** 43 * @file cond_dtor_entry_dealtor.hpp 44 * Contains a binary tree container conditional deallocator 45 */ 46 47 class cond_dealtor 48 { 49 public: 50 inline cond_dealtor(leaf_pointer p_nd)51 cond_dealtor(leaf_pointer p_nd) : m_p_nd(p_nd), 52 m_no_action_dtor(false), 53 m_call_destructor(false) 54 { } 55 56 inline void set_no_action_dtor()57 set_no_action_dtor() 58 { 59 m_no_action_dtor = true; 60 } 61 62 inline void set_call_destructor()63 set_call_destructor() 64 { 65 m_call_destructor = true; 66 } 67 68 inline ~cond_dealtor()69 ~cond_dealtor() 70 { 71 if (m_no_action_dtor) 72 return; 73 74 if (m_call_destructor) 75 m_p_nd->~leaf(); 76 77 s_leaf_allocator.deallocate(m_p_nd, 1); 78 } 79 80 protected: 81 leaf_pointer m_p_nd; 82 bool m_no_action_dtor; 83 bool m_call_destructor; 84 }; 85 86