libstdc++
cc_hash_table_map_/insert_store_hash_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 cc_hash_table_map_/insert_store_hash_fn_imps.hpp
00038  * Contains implementations of cc_ht_map_'s insert related functions,
00039  * when the hash value is stored.
00040  */
00041 
00042 PB_DS_CLASS_T_DEC
00043 inline std::pair<typename PB_DS_CLASS_C_DEC::point_iterator, bool>
00044 PB_DS_CLASS_C_DEC::
00045 insert_imp(const_reference r_val, true_type)
00046 {
00047   PB_DS_ASSERT_VALID((*this))
00048   key_const_reference key = PB_DS_V2F(r_val);
00049   comp_hash pos_hash_pair = ranged_hash_fn_base::operator()(key);
00050   entry_pointer p_e = m_entries[pos_hash_pair.first];
00051   resize_base::notify_insert_search_start();
00052 
00053   while (p_e != 0 && !hash_eq_fn_base::operator()(PB_DS_V2F(p_e->m_value),
00054                              p_e->m_hash,
00055                             key, pos_hash_pair.second))
00056     {
00057       resize_base::notify_insert_search_collision();
00058       p_e = p_e->m_p_next;
00059     }
00060 
00061   resize_base::notify_insert_search_end();
00062   if (p_e != 0)
00063     {
00064       PB_DS_CHECK_KEY_EXISTS(key)
00065       return std::make_pair(&p_e->m_value, false);
00066     }
00067 
00068   PB_DS_CHECK_KEY_DOES_NOT_EXIST(key)
00069   return std::make_pair(insert_new_imp(r_val, pos_hash_pair), true);
00070 }
00071