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4569a895 AT |
1 | // -*- C++ -*- |
2 | ||
3 | // Copyright (C) 2005, 2006 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 2, 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 | // You should have received a copy of the GNU General Public License | |
17 | // along with this library; see the file COPYING. If not, write to | |
18 | // the Free Software Foundation, 59 Temple Place - Suite 330, Boston, | |
19 | // MA 02111-1307, USA. | |
20 | ||
21 | // As a special exception, you may use this file as part of a free | |
22 | // software library without restriction. Specifically, if other files | |
23 | // instantiate templates or use macros or inline functions from this | |
24 | // file, or you compile this file and link it with other files to | |
25 | // produce an executable, this file does not by itself cause the | |
26 | // resulting executable to be covered by the GNU General Public | |
27 | // License. This exception does not however invalidate any other | |
28 | // reasons why the executable file might be covered by the GNU General | |
29 | // Public License. | |
30 | ||
31 | // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. | |
32 | ||
33 | // Permission to use, copy, modify, sell, and distribute this software | |
34 | // is hereby granted without fee, provided that the above copyright | |
35 | // notice appears in all copies, and that both that copyright notice | |
36 | // and this permission notice appear in supporting documentation. None | |
37 | // of the above authors, nor IBM Haifa Research Laboratories, make any | |
38 | // representation about the suitability of this software for any | |
39 | // purpose. It is provided "as is" without express or implied | |
40 | // warranty. | |
41 | ||
42 | /** | |
43 | * @file erase_no_store_hash_fn_imps.hpp | |
1b24692f BK |
44 | * Contains implementations of cc_ht_map_'s erase related functions, |
45 | * when the hash value is not stored. | |
4569a895 AT |
46 | */ |
47 | ||
48 | PB_DS_CLASS_T_DEC | |
49 | inline bool | |
50 | PB_DS_CLASS_C_DEC:: | |
51 | erase(const_key_reference r_key) | |
52 | { | |
47bea7b8 | 53 | _GLIBCXX_DEBUG_ONLY(assert_valid();) |
1b24692f | 54 | return erase_in_pos_imp(r_key, ranged_hash_fn_base::operator()(r_key)); |
4569a895 AT |
55 | } |
56 | ||
57 | PB_DS_CLASS_T_DEC | |
58 | inline bool | |
59 | PB_DS_CLASS_C_DEC:: | |
60 | erase_in_pos_imp(const_key_reference r_key, size_type pos) | |
61 | { | |
47bea7b8 | 62 | _GLIBCXX_DEBUG_ONLY(assert_valid();) |
1b24692f | 63 | entry_pointer p_e = m_entries[pos]; |
4569a895 | 64 | resize_base::notify_erase_search_start(); |
4569a895 AT |
65 | if (p_e == NULL) |
66 | { | |
67 | resize_base::notify_erase_search_end(); | |
551fe1a2 | 68 | _GLIBCXX_DEBUG_ONLY(debug_base::check_key_does_not_exist(r_key);) |
1b24692f BK |
69 | _GLIBCXX_DEBUG_ONLY(assert_valid();) |
70 | return false; | |
4569a895 AT |
71 | } |
72 | ||
1b24692f | 73 | if (hash_eq_fn_base::operator()(PB_DS_V2F(p_e->m_value), r_key)) |
4569a895 AT |
74 | { |
75 | resize_base::notify_erase_search_end(); | |
551fe1a2 | 76 | _GLIBCXX_DEBUG_ONLY(debug_base:: check_key_exists(r_key);) |
1b24692f | 77 | erase_entry_pointer(m_entries[pos]); |
4569a895 | 78 | do_resize_if_needed_no_throw(); |
47bea7b8 | 79 | _GLIBCXX_DEBUG_ONLY(assert_valid();) |
1b24692f | 80 | return true; |
4569a895 AT |
81 | } |
82 | ||
83 | while (true) | |
84 | { | |
85 | entry_pointer p_next_e = p_e->m_p_next; | |
4569a895 AT |
86 | if (p_next_e == NULL) |
87 | { | |
88 | resize_base::notify_erase_search_end(); | |
551fe1a2 | 89 | _GLIBCXX_DEBUG_ONLY(debug_base::check_key_does_not_exist(r_key);) |
1b24692f BK |
90 | _GLIBCXX_DEBUG_ONLY(assert_valid();) |
91 | return false; | |
4569a895 AT |
92 | } |
93 | ||
1b24692f | 94 | if (hash_eq_fn_base::operator()(PB_DS_V2F(p_next_e->m_value), r_key)) |
4569a895 AT |
95 | { |
96 | resize_base::notify_erase_search_end(); | |
551fe1a2 | 97 | _GLIBCXX_DEBUG_ONLY(debug_base::check_key_exists(r_key);) |
1b24692f | 98 | erase_entry_pointer(p_e->m_p_next); |
4569a895 | 99 | do_resize_if_needed_no_throw(); |
47bea7b8 | 100 | _GLIBCXX_DEBUG_ONLY(assert_valid();) |
1b24692f | 101 | return true; |
4569a895 | 102 | } |
4569a895 | 103 | resize_base::notify_erase_search_collision(); |
4569a895 AT |
104 | p_e = p_next_e; |
105 | } | |
106 | } | |
107 |