mingw/lib/gcc/mingw32/4.3.3/include/c++/ext/pb_ds/detail/cc_hash_table_map_/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 implementations of cc_ht_map_'s erase related functions.
  45  */
  46
  47 PB_DS_CLASS_T_DEC
  48 inline void
  49 PB_DS_CLASS_C_DEC::
  50 erase_entry_pointer(entry_pointer& r_p_e)
  51 {
  52   _GLIBCXX_DEBUG_ONLY(debug_base::erase_existing(PB_DS_V2F(r_p_e->m_value)));
  53
  54   entry_pointer p_e = r_p_e;
  55   r_p_e = r_p_e->m_p_next;
  56   rels_entry(p_e);
  57   _GLIBCXX_DEBUG_ASSERT(m_num_used_e > 0);
  58   resize_base::notify_erased(--m_num_used_e);
  59 }
  60
  61 PB_DS_CLASS_T_DEC
  62 template<typename Pred>
  63 inline typename PB_DS_CLASS_C_DEC::size_type
  64 PB_DS_CLASS_C_DEC::
  65 erase_if(Pred pred)
  66 {
  67   size_type num_ersd = 0;
  68   for (size_type pos = 0; pos < m_num_e; ++pos)
  69     {
  70       while (m_entries[pos] != NULL && pred(m_entries[pos]->m_value))
  71         {
  72           ++num_ersd;
  73           entry_pointer p_next_e = m_entries[pos]->m_p_next;
  74           erase_entry_pointer(m_entries[pos]);
  75           m_entries[pos] = p_next_e;
  76         }
  77
  78       entry_pointer p_e = m_entries[pos];
  79       while (p_e != NULL && p_e->m_p_next != NULL)
  80         {
  81           if (pred(p_e->m_p_next->m_value))
  82             {
  83               ++num_ersd;
  84               erase_entry_pointer(p_e->m_p_next);
  85             }
  86           else
  87             p_e = p_e->m_p_next;
  88         }
  89     }
  90
  91   do_resize_if_needed_no_throw();
  92   return num_ersd;
  93 }
  94
  95 PB_DS_CLASS_T_DEC
  96 void
  97 PB_DS_CLASS_C_DEC::
  98 clear()
  99 {
 100   for (size_type pos = 0; pos < m_num_e; ++pos)
 101     while (m_entries[pos] != NULL)
 102       erase_entry_pointer(m_entries[pos]);
 103   do_resize_if_needed_no_throw();
 104   resize_base::notify_cleared();
 105 }
 106
 107 #include <ext/pb_ds/detail/cc_hash_table_map_/erase_no_store_hash_fn_imps.hpp>
 108 #include <ext/pb_ds/detail/cc_hash_table_map_/erase_store_hash_fn_imps.hpp>
 109