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 insert_store_hash_fn_imps.hpp
42 * Contains implementations of cc_ht_map_'s insert related functions, when the hash
43 *	value is stored.
44 */
45
46PB_ASSOC_CLASS_T_DEC
47inline typename PB_ASSOC_CLASS_C_DEC::data_reference
48PB_ASSOC_CLASS_C_DEC::
49subscript_imp(const_key_reference r_key, int_to_type<true>)
50{
51  PB_ASSOC_DBG_ONLY(assert_valid();)
52
53    comp_hash pos_hash_pair = my_ranged_hash_fn_base::operator()(r_key);
54
55  entry_pointer p_e = m_a_p_entries[pos_hash_pair.first];
56
57  my_resize_base::notify_insert_search_start();
58
59  while (p_e != NULL&&
60	 !my_hash_eq_fn_base::operator()(p_e->m_value.first, p_e->m_hash, r_key, pos_hash_pair.second))
61    {
62      my_resize_base::notify_insert_search_collision();
63
64      p_e = p_e->m_p_next;
65    }
66
67  my_resize_base::notify_insert_search_end();
68
69  if (p_e != NULL)
70    {
71      PB_ASSOC_DBG_ONLY(my_map_debug_base::check_key_exists(r_key);)
72
73	return (p_e->m_value.second);
74    }
75
76  PB_ASSOC_DBG_ONLY(my_map_debug_base::check_key_does_not_exist(r_key);)
77
78    return (insert_new_imp(
79			   value_type(r_key, Data()), pos_hash_pair)->second);
80}
81
82PB_ASSOC_CLASS_T_DEC
83inline std::pair<typename PB_ASSOC_CLASS_C_DEC::find_iterator, bool>
84PB_ASSOC_CLASS_C_DEC::
85insert_imp(const_reference r_val, int_to_type<true>)
86{
87  PB_ASSOC_DBG_ONLY(assert_valid();)
88
89    const_key_reference r_key = PB_ASSOC_V2F(r_val);
90
91  comp_hash pos_hash_pair = my_ranged_hash_fn_base::operator()(r_key);
92
93  entry_pointer p_e = m_a_p_entries[pos_hash_pair.first];
94
95  my_resize_base::notify_insert_search_start();
96
97  while (p_e != NULL&&
98	 !my_hash_eq_fn_base::operator()(
99					 PB_ASSOC_V2F(p_e->m_value),
100					 p_e->m_hash,
101					 r_key, pos_hash_pair.second))
102    {
103      my_resize_base::notify_insert_search_collision();
104
105      p_e = p_e->m_p_next;
106    }
107
108  my_resize_base::notify_insert_search_end();
109
110  if (p_e != NULL)
111    {
112      PB_ASSOC_DBG_ONLY(my_map_debug_base::check_key_exists(r_key);)
113
114	return (
115		std::make_pair(
116			       static_cast<pointer>(&p_e->m_value),
117			       false));
118    }
119
120  PB_ASSOC_DBG_ONLY(my_map_debug_base::check_key_does_not_exist(r_key);)
121
122    return (
123	    std::make_pair(
124			   insert_new_imp(r_val, pos_hash_pair),
125			   true));
126}
127
128PB_ASSOC_CLASS_T_DEC
129inline typename PB_ASSOC_CLASS_C_DEC::pointer
130PB_ASSOC_CLASS_C_DEC::
131insert_new_imp(const_reference r_val, comp_hash& r_pos_hash_pair)
132{
133  // Following lines might throw an exception.
134
135  if (do_resize_if_needed())
136    r_pos_hash_pair = my_ranged_hash_fn_base::operator()(
137							 PB_ASSOC_V2F(r_val));
138
139  entry_pointer p_e = get_entry(r_val, my_traits_base::s_no_throw_copies_indicator);
140
141  // At this point no exceptions can be thrown.
142
143  p_e->m_hash = r_pos_hash_pair.second;
144
145  p_e->m_p_next = m_a_p_entries[r_pos_hash_pair.first];
146
147  m_a_p_entries[r_pos_hash_pair.first] = p_e;
148
149  my_resize_base::notify_inserted(++m_num_used_e);
150
151  PB_ASSOC_DBG_ONLY(my_map_debug_base::insert_new(r_key);)
152
153    PB_ASSOC_DBG_ONLY(assert_valid();)
154
155    return (static_cast<pointer>(&p_e->m_value));
156}
157
158