mingw/lib/gcc/mingw32/4.3.3/include/c++/ext/pb_ds/detail/rc_binomial_heap_/erase_fn_imps.hpp

   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 erase_fn_imps.hpp
  44  * Contains an implementation for rc_binomial_heap_.
  45  */
  46
  47 PB_DS_CLASS_T_DEC
  48 inline void
  49 PB_DS_CLASS_C_DEC::
  50 pop()
  51 {
  52   make_binomial_heap();
  53   _GLIBCXX_DEBUG_ASSERT(!base_type::empty());
  54   base_type::pop();
  55   base_type::find_max();
  56 }
  57
  58 PB_DS_CLASS_T_DEC
  59 void
  60 PB_DS_CLASS_C_DEC::
  61 clear()
  62 {
  63   base_type::clear();
  64   m_rc.clear();
  65 }
  66
  67 PB_DS_CLASS_T_DEC
  68 void
  69 PB_DS_CLASS_C_DEC::
  70 make_binomial_heap()
  71 {
  72   node_pointer p_nd = base_type::m_p_root;
  73   while (p_nd != NULL)
  74     {
  75       node_pointer p_next = p_nd->m_p_next_sibling;
  76       if (p_next == NULL)
  77         p_nd = p_next;
  78       else if (p_nd->m_metadata == p_next->m_metadata)
  79         p_nd = link_with_next_sibling(p_nd);
  80       else if (p_nd->m_metadata < p_next->m_metadata)
  81         p_nd = p_next;
  82 #ifdef _GLIBCXX_DEBUG
  83       else
  84         _GLIBCXX_DEBUG_ASSERT(0);
  85 #endif
  86     }
  87
  88   m_rc.clear();
  89 }
  90
  91 PB_DS_CLASS_T_DEC
  92 template<typename Pred>
  93 typename PB_DS_CLASS_C_DEC::size_type
  94 PB_DS_CLASS_C_DEC::
  95 erase_if(Pred pred)
  96 {
  97   make_binomial_heap();
  98   const size_type ersd = base_type::erase_if(pred);
  99   base_type::find_max();
 100   _GLIBCXX_DEBUG_ONLY(assert_valid();)
 101   return ersd;
 102 }
 103
 104 PB_DS_CLASS_T_DEC
 105 void
 106 PB_DS_CLASS_C_DEC::
 107 erase(point_iterator it)
 108 {
 109   make_binomial_heap();
 110   base_type::erase(it);
 111   base_type::find_max();
 112 }
 113