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36fed23c | 1 | // -*- C++ -*- |
2 | ||
f1717362 | 3 | // Copyright (C) 2005-2016 Free Software Foundation, Inc. |
36fed23c | 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 | |
6bc9506f | 8 | // Foundation; either version 3, or (at your option) any later |
36fed23c | 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 | ||
6bc9506f | 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/>. | |
36fed23c | 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 | /** | |
4f4a327e | 37 | * @file gp_hash_table_map_/insert_no_store_hash_fn_imps.hpp |
ea18d4a3 | 38 | * Contains implementations of gp_ht_map_'s insert related functions, |
39 | * when the hash value is not stored. | |
36fed23c | 40 | */ |
41 | ||
42 | PB_DS_CLASS_T_DEC | |
43 | inline typename PB_DS_CLASS_C_DEC::size_type | |
44 | PB_DS_CLASS_C_DEC:: | |
4f4a327e | 45 | find_ins_pos(key_const_reference r_key, false_type) |
36fed23c | 46 | { |
47 | size_type hash = ranged_probe_fn_base::operator()(r_key); | |
36fed23c | 48 | size_type i; |
49 | ||
50 | /* The insertion position is initted to a non-legal value to indicate | |
51 | * that it has not been initted yet. | |
52 | */ | |
53 | size_type ins_pos = m_num_e; | |
36fed23c | 54 | resize_base::notify_insert_search_start(); |
36fed23c | 55 | for (i = 0; i < m_num_e; ++i) |
56 | { | |
ea18d4a3 | 57 | const size_type pos = ranged_probe_fn_base::operator()(r_key, hash, i); |
2b31bec4 | 58 | _GLIBCXX_DEBUG_ASSERT(pos < m_num_e); |
ce8b0a77 | 59 | entry* const p_e = m_entries + pos; |
36fed23c | 60 | switch(p_e->m_stat) |
61 | { | |
62 | case empty_entry_status: | |
63 | { | |
64 | resize_base::notify_insert_search_end(); | |
2548203e | 65 | PB_DS_CHECK_KEY_DOES_NOT_EXIST(r_key) |
ea18d4a3 | 66 | return (ins_pos == m_num_e) ? pos : ins_pos; |
36fed23c | 67 | } |
68 | break; | |
69 | case erased_entry_status: | |
70 | if (ins_pos == m_num_e) | |
71 | ins_pos = pos; | |
72 | break; | |
73 | case valid_entry_status: | |
ea18d4a3 | 74 | if (hash_eq_fn_base::operator()(PB_DS_V2F(p_e->m_value), r_key)) |
36fed23c | 75 | { |
76 | resize_base::notify_insert_search_end(); | |
2548203e | 77 | PB_DS_CHECK_KEY_EXISTS(r_key) |
ea18d4a3 | 78 | return pos; |
36fed23c | 79 | } |
80 | break; | |
81 | default: | |
2b31bec4 | 82 | _GLIBCXX_DEBUG_ASSERT(0); |
36fed23c | 83 | }; |
84 | ||
85 | resize_base::notify_insert_search_collision(); | |
86 | } | |
36fed23c | 87 | resize_base::notify_insert_search_end(); |
36fed23c | 88 | if (ins_pos == m_num_e) |
c4f08cc0 | 89 | __throw_insert_error(); |
ea18d4a3 | 90 | return ins_pos; |
36fed23c | 91 | } |
92 | ||
93 | PB_DS_CLASS_T_DEC | |
94 | inline std::pair<typename PB_DS_CLASS_C_DEC::point_iterator, bool> | |
95 | PB_DS_CLASS_C_DEC:: | |
d3533fc3 | 96 | insert_imp(const_reference r_val, false_type) |
36fed23c | 97 | { |
4f4a327e | 98 | key_const_reference r_key = PB_DS_V2F(r_val); |
ea18d4a3 | 99 | const size_type pos = find_ins_pos(r_key, |
100 | traits_base::m_store_extra_indicator); | |
36fed23c | 101 | |
ce8b0a77 | 102 | if (m_entries[pos].m_stat == valid_entry_status) |
36fed23c | 103 | { |
2548203e | 104 | PB_DS_CHECK_KEY_EXISTS(r_key) |
ea18d4a3 | 105 | return std::make_pair(&(m_entries + pos)->m_value, false); |
36fed23c | 106 | } |
107 | ||
2548203e | 108 | PB_DS_CHECK_KEY_DOES_NOT_EXIST(r_key) |
ea18d4a3 | 109 | return std::make_pair(insert_new_imp(r_val, pos), true); |
36fed23c | 110 | } |
111 |