libstdc++

cc_hash_table_map_/insert_no_store_hash_fn_imps.hpp
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1 // -*- C++ -*-
2
3 // Copyright (C) 2005-2013 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 3, 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 // Under Section 7 of GPL version 3, you are granted additional
17 // permissions described in the GCC Runtime Library Exception, version
18 // 3.1, as published by the Free Software Foundation.
19
20 // You should have received a copy of the GNU General Public License and
21 // a copy of the GCC Runtime Library Exception along with this program;
22 // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
23 // <http://www.gnu.org/licenses/>.
24
25 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
26
27 // Permission to use, copy, modify, sell, and distribute this software
28 // is hereby granted without fee, provided that the above copyright
29 // notice appears in all copies, and that both that copyright notice
30 // and this permission notice appear in supporting documentation. None
31 // of the above authors, nor IBM Haifa Research Laboratories, make any
32 // representation about the suitability of this software for any
33 // purpose. It is provided "as is" without express or implied
34 // warranty.
35
36 /**
37 * @file cc_hash_table_map_/insert_no_store_hash_fn_imps.hpp
38 * Contains implementations of cc_ht_map_'s insert related functions,
39 * when the hash value is not stored.
40 */
41
42 PB_DS_CLASS_T_DEC
43 inline std::pair<typename PB_DS_CLASS_C_DEC::point_iterator, bool>
44 PB_DS_CLASS_C_DEC::
45 insert_imp(const_reference r_val, false_type)
46 {
47 PB_DS_ASSERT_VALID((*this))
48 key_const_reference r_key = PB_DS_V2F(r_val);
49 const size_type pos = ranged_hash_fn_base::operator()(r_key);
50 entry_pointer p_e = m_entries[pos];
51 resize_base::notify_insert_search_start();
52
53 while (p_e != 0 && !hash_eq_fn_base::operator()(PB_DS_V2F(p_e->m_value),
54 r_key))
55 {
56 resize_base::notify_insert_search_collision();
57 p_e = p_e->m_p_next;
58 }
59
60 resize_base::notify_insert_search_end();
61 if (p_e != 0)
62 {
63 PB_DS_CHECK_KEY_EXISTS(r_key)
64 return std::make_pair(&p_e->m_value, false);
65 }
66
67 PB_DS_CHECK_KEY_DOES_NOT_EXIST(r_key)
68 return std::make_pair(insert_new_imp(r_val, pos), true);
69 }
70