libstdc++
rc_binomial_heap_/erase_fn_imps.hpp
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00001 // -*- C++ -*-
00002 
00003 // Copyright (C) 2005, 2006, 2009, 2010, 2011 Free Software Foundation, Inc.
00004 //
00005 // This file is part of the GNU ISO C++ Library.  This library is free
00006 // software; you can redistribute it and/or modify it under the terms
00007 // of the GNU General Public License as published by the Free Software
00008 // Foundation; either version 3, or (at your option) any later
00009 // version.
00010 
00011 // This library is distributed in the hope that it will be useful, but
00012 // WITHOUT ANY WARRANTY; without even the implied warranty of
00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014 // General Public License for more details.
00015 
00016 // Under Section 7 of GPL version 3, you are granted additional
00017 // permissions described in the GCC Runtime Library Exception, version
00018 // 3.1, as published by the Free Software Foundation.
00019 
00020 // You should have received a copy of the GNU General Public License and
00021 // a copy of the GCC Runtime Library Exception along with this program;
00022 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
00023 // <http://www.gnu.org/licenses/>.
00024 
00025 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
00026 
00027 // Permission to use, copy, modify, sell, and distribute this software
00028 // is hereby granted without fee, provided that the above copyright
00029 // notice appears in all copies, and that both that copyright notice
00030 // and this permission notice appear in supporting documentation. None
00031 // of the above authors, nor IBM Haifa Research Laboratories, make any
00032 // representation about the suitability of this software for any
00033 // purpose. It is provided "as is" without express or implied
00034 // warranty.
00035 
00036 /**
00037  * @file rc_binomial_heap_/erase_fn_imps.hpp
00038  * Contains an implementation for rc_binomial_heap_.
00039  */
00040 
00041 PB_DS_CLASS_T_DEC
00042 inline void
00043 PB_DS_CLASS_C_DEC::
00044 pop()
00045 {
00046   make_binomial_heap();
00047   _GLIBCXX_DEBUG_ASSERT(!base_type::empty());
00048   base_type::pop();
00049   base_type::find_max();
00050 }
00051 
00052 PB_DS_CLASS_T_DEC
00053 void
00054 PB_DS_CLASS_C_DEC::
00055 clear()
00056 {
00057   base_type::clear();
00058   m_rc.clear();
00059 }
00060 
00061 PB_DS_CLASS_T_DEC
00062 void
00063 PB_DS_CLASS_C_DEC::
00064 make_binomial_heap()
00065 {
00066   node_pointer p_nd = base_type::m_p_root;
00067   while (p_nd != 0)
00068     {
00069       node_pointer p_next = p_nd->m_p_next_sibling;
00070       if (p_next == 0)
00071     p_nd = p_next;
00072       else if (p_nd->m_metadata == p_next->m_metadata)
00073     p_nd = link_with_next_sibling(p_nd);
00074       else if (p_nd->m_metadata < p_next->m_metadata)
00075     p_nd = p_next;
00076 #ifdef _GLIBCXX_DEBUG
00077       else
00078     _GLIBCXX_DEBUG_ASSERT(0);
00079 #endif 
00080     }
00081 
00082   m_rc.clear();
00083 }
00084 
00085 PB_DS_CLASS_T_DEC
00086 template<typename Pred>
00087 typename PB_DS_CLASS_C_DEC::size_type
00088 PB_DS_CLASS_C_DEC::
00089 erase_if(Pred pred)
00090 {
00091   make_binomial_heap();
00092   const size_type ersd = base_type::erase_if(pred);
00093   base_type::find_max();
00094   PB_DS_ASSERT_VALID((*this))
00095   return ersd;
00096 }
00097 
00098 PB_DS_CLASS_T_DEC
00099 void
00100 PB_DS_CLASS_C_DEC::
00101 erase(point_iterator it)
00102 {
00103   make_binomial_heap();
00104   base_type::erase(it);
00105   base_type::find_max();
00106 }
00107