1169691Skan// -*- C++ -*-
2169691Skan
3169691Skan// Copyright (C) 2005, 2006 Free Software Foundation, Inc.
4169691Skan//
5169691Skan// This file is part of the GNU ISO C++ Library.  This library is free
6169691Skan// software; you can redistribute it and/or modify it under the terms
7169691Skan// of the GNU General Public License as published by the Free Software
8169691Skan// Foundation; either version 2, or (at your option) any later
9169691Skan// version.
10169691Skan
11169691Skan// This library is distributed in the hope that it will be useful, but
12169691Skan// WITHOUT ANY WARRANTY; without even the implied warranty of
13169691Skan// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
14169691Skan// General Public License for more details.
15169691Skan
16169691Skan// You should have received a copy of the GNU General Public License
17169691Skan// along with this library; see the file COPYING.  If not, write to
18169691Skan// the Free Software Foundation, 59 Temple Place - Suite 330, Boston,
19169691Skan// MA 02111-1307, USA.
20169691Skan
21169691Skan// As a special exception, you may use this file as part of a free
22169691Skan// software library without restriction.  Specifically, if other files
23169691Skan// instantiate templates or use macros or inline functions from this
24169691Skan// file, or you compile this file and link it with other files to
25169691Skan// produce an executable, this file does not by itself cause the
26169691Skan// resulting executable to be covered by the GNU General Public
27169691Skan// License.  This exception does not however invalidate any other
28169691Skan// reasons why the executable file might be covered by the GNU General
29169691Skan// Public License.
30169691Skan
31169691Skan// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
32169691Skan
33169691Skan// Permission to use, copy, modify, sell, and distribute this software
34169691Skan// is hereby granted without fee, provided that the above copyright
35169691Skan// notice appears in all copies, and that both that copyright notice
36169691Skan// and this permission notice appear in supporting documentation. None
37169691Skan// of the above authors, nor IBM Haifa Research Laboratories, make any
38169691Skan// representation about the suitability of this software for any
39169691Skan// purpose. It is provided "as is" without express or implied
40169691Skan// warranty.
41169691Skan
42169691Skan/**
43169691Skan * @file insert_store_hash_fn_imps.hpp
44169691Skan * Contains implementations of gp_ht_map_'s find related functions,
45169691Skan * when the hash value is stored.
46169691Skan */
47169691Skan
48169691SkanPB_DS_CLASS_T_DEC
49169691Skaninline typename PB_DS_CLASS_C_DEC::comp_hash
50169691SkanPB_DS_CLASS_C_DEC::
51169691Skanfind_ins_pos(const_key_reference r_key, true_type)
52169691Skan{
53169691Skan  _GLIBCXX_DEBUG_ONLY(PB_DS_CLASS_C_DEC::assert_valid();)
54169691Skan  comp_hash pos_hash_pair = ranged_probe_fn_base::operator()(r_key);
55169691Skan
56169691Skan  size_type i;
57169691Skan
58169691Skan  /* The insertion position is initted to a non-legal value to indicate
59169691Skan   *     that it has not been initted yet.
60169691Skan   */
61169691Skan  size_type ins_pos = m_num_e;
62169691Skan  resize_base::notify_insert_search_start();
63169691Skan  for (i = 0; i < m_num_e; ++i)
64169691Skan    {
65169691Skan      const size_type pos = ranged_probe_fn_base::operator()(r_key, pos_hash_pair.second, i);
66169691Skan
67169691Skan      entry* const p_e = m_entries + pos;
68169691Skan      switch(p_e->m_stat)
69169691Skan        {
70169691Skan        case empty_entry_status:
71169691Skan	  {
72169691Skan            resize_base::notify_insert_search_end();
73169691Skan            _GLIBCXX_DEBUG_ONLY(map_debug_base::check_key_does_not_exist(r_key);)
74169691Skan
75169691Skan	    return ((ins_pos == m_num_e) ?
76169691Skan		     std::make_pair(pos, pos_hash_pair.second) :
77169691Skan		     std::make_pair(ins_pos, pos_hash_pair.second));
78169691Skan	  }
79169691Skan	  break;
80169691Skan        case erased_entry_status:
81169691Skan	  if (ins_pos == m_num_e)
82169691Skan	    ins_pos = pos;
83169691Skan	  break;
84169691Skan        case valid_entry_status:
85169691Skan	  if (hash_eq_fn_base::operator()(PB_DS_V2F(p_e->m_value), p_e->m_hash,
86169691Skan					  r_key, pos_hash_pair.second))
87169691Skan            {
88169691Skan	      resize_base::notify_insert_search_end();
89169691Skan	      _GLIBCXX_DEBUG_ONLY(map_debug_base::check_key_exists(r_key);)
90169691Skan              return std::make_pair(pos, pos_hash_pair.second);
91169691Skan            }
92169691Skan	  break;
93169691Skan        default:
94169691Skan	  _GLIBCXX_DEBUG_ASSERT(0);
95169691Skan        };
96169691Skan      resize_base::notify_insert_search_collision();
97169691Skan    }
98169691Skan  resize_base::notify_insert_search_end();
99169691Skan  if (ins_pos == m_num_e)
100169691Skan    __throw_insert_error();
101169691Skan  return std::make_pair(ins_pos, pos_hash_pair.second);
102169691Skan}
103169691Skan
104169691SkanPB_DS_CLASS_T_DEC
105169691Skaninline std::pair<typename PB_DS_CLASS_C_DEC::point_iterator, bool>
106169691SkanPB_DS_CLASS_C_DEC::
107169691Skaninsert_imp(const_reference r_val, true_type)
108169691Skan{
109169691Skan  const_key_reference r_key = PB_DS_V2F(r_val);
110169691Skan  comp_hash pos_hash_pair = find_ins_pos(r_key,
111169691Skan					 traits_base::m_store_extra_indicator);
112169691Skan
113169691Skan  _GLIBCXX_DEBUG_ASSERT(pos_hash_pair.first < m_num_e);
114169691Skan  entry_pointer p_e =& m_entries[pos_hash_pair.first];
115169691Skan  if (p_e->m_stat == valid_entry_status)
116169691Skan    {
117169691Skan      _GLIBCXX_DEBUG_ONLY(map_debug_base::check_key_exists(r_key));
118169691Skan      return std::make_pair(&p_e->m_value, false);
119169691Skan    }
120169691Skan
121169691Skan  _GLIBCXX_DEBUG_ONLY(map_debug_base::check_key_does_not_exist(r_key));
122169691Skan  return std::make_pair(insert_new_imp(r_val, pos_hash_pair), true);
123169691Skan}
124169691Skan
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