gomp-20050608-branch/libstdc++-v3/include/ext/pb_assoc/detail/cc_ht_map_/find_store_hash_fn_imps.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005 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
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 2, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19 // USA.
  20
  21 // As a special exception, you may use this file as part of a free software
  22 // library without restriction.  Specifically, if other files instantiate
  23 // templates or use macros or inline functions from this file, or you compile
  24 // this file and link it with other files to produce an executable, this
  25 // file does not by itself cause the resulting executable to be covered by
  26 // the GNU General Public License.  This exception does not however
  27 // invalidate any other reasons why the executable file might be covered by
  28 // the GNU General Public License.
  29
  30 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
  31
  32 // Permission to use, copy, modify, sell, and distribute this software
  33 // is hereby granted without fee, provided that the above copyright
  34 // notice appears in all copies, and that both that copyright notice and
  35 // this permission notice appear in supporting documentation. None of
  36 // the above authors, nor IBM Haifa Research Laboratories, make any
  37 // representation about the suitability of this software for any
  38 // purpose. It is provided "as is" without express or implied warranty.
  39
  40 /**
  41  * @file find_store_hash_fn_imps.hpp
  42  * Contains implementations of cc_ht_map_'s find related functions, when the hash
  43  *      value is stored.
  44  */
  45
  46 PB_ASSOC_CLASS_T_DEC
  47 inline typename PB_ASSOC_CLASS_C_DEC::const_data_reference
  48 PB_ASSOC_CLASS_C_DEC::
  49 const_subscript_imp(const_key_reference r_key, int_to_type<true>)  const
  50 {
  51   PB_ASSOC_DBG_ONLY(assert_valid();)
  52
  53     return (const_cast<PB_ASSOC_CLASS_C_DEC& >(*this).find_key_pointer(r_key, my_traits_base::m_store_hash_indicator)->second);
  54 }
  55
  56 PB_ASSOC_CLASS_T_DEC
  57 inline typename PB_ASSOC_CLASS_C_DEC::pointer
  58 PB_ASSOC_CLASS_C_DEC::
  59 find_key_pointer(const_key_reference r_key, int_to_type<true>)
  60 {
  61   comp_hash pos_hash_pair = my_ranged_hash_fn_base::operator()(r_key);
  62
  63   entry_pointer p_e = m_a_p_entries[pos_hash_pair.first];
  64
  65   my_resize_base::notify_find_search_start();
  66
  67   while (p_e != NULL&&
  68          !my_hash_eq_fn_base::operator()(PB_ASSOC_V2F(p_e->m_value),
  69                                          p_e->m_hash,
  70                                          r_key,
  71                                          pos_hash_pair.second))
  72     {
  73       my_resize_base::notify_find_search_collision();
  74
  75       p_e = p_e->m_p_next;
  76     }
  77
  78   my_resize_base::notify_find_search_end();
  79
  80 #ifdef PB_ASSOC_CC_HT_MAP_DEBUG
  81   if (p_e == NULL)
  82     my_map_debug_base::check_key_does_not_exist(r_key);
  83   else
  84     my_map_debug_base::check_key_exists(r_key);
  85 #endif // #ifdef PB_ASSOC_CC_HT_MAP_DEBUG
  86
  87   return (const_cast<pointer>(&p_e->m_value));
  88 }