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_fn_imps.hpp
44 * Contains implementations of lu_map_.
45 */
46
47PB_DS_CLASS_T_DEC
48inline bool
49PB_DS_CLASS_C_DEC::
50erase(const_key_reference r_key)
51{
52  _GLIBCXX_DEBUG_ONLY(PB_DS_CLASS_C_DEC::assert_valid();)
53  if (m_p_l == NULL)
54    return false;
55
56  if (s_eq_fn(r_key, PB_DS_V2F(m_p_l->m_value)))
57    {
58      entry_pointer p_next = m_p_l->m_p_next;
59      actual_erase_entry(m_p_l);
60      m_p_l = p_next;
61      return true;
62    }
63
64  entry_pointer p_l = m_p_l;
65  while (p_l->m_p_next != NULL)
66    if (s_eq_fn(r_key, PB_DS_V2F(p_l->m_p_next->m_value)))
67      {
68	erase_next(p_l);
69	return true;
70      }
71    else
72      p_l = p_l->m_p_next;
73  return false;
74}
75
76PB_DS_CLASS_T_DEC
77void
78PB_DS_CLASS_C_DEC::
79clear()
80{
81  deallocate_all();
82}
83
84PB_DS_CLASS_T_DEC
85template<typename Pred>
86inline typename PB_DS_CLASS_C_DEC::size_type
87PB_DS_CLASS_C_DEC::
88erase_if(Pred pred)
89{
90  _GLIBCXX_DEBUG_ONLY(PB_DS_CLASS_C_DEC::assert_valid();)
91  size_type num_ersd = 0;
92  while (m_p_l != NULL && pred(m_p_l->m_value))
93    {
94      entry_pointer p_next = m_p_l->m_p_next;
95      ++num_ersd;
96      actual_erase_entry(m_p_l);
97      m_p_l = p_next;
98    }
99
100  if (m_p_l == NULL)
101    return num_ersd;
102
103  entry_pointer p_l = m_p_l;
104  while (p_l->m_p_next != NULL)
105    {
106      if (pred(p_l->m_p_next->m_value))
107        {
108	  ++num_ersd;
109	  erase_next(p_l);
110        }
111      else
112	p_l = p_l->m_p_next;
113    }
114
115  _GLIBCXX_DEBUG_ONLY(PB_DS_CLASS_C_DEC::assert_valid();)
116  return num_ersd;
117}
118
119PB_DS_CLASS_T_DEC
120void
121PB_DS_CLASS_C_DEC::
122erase_next(entry_pointer p_l)
123{
124  _GLIBCXX_DEBUG_ASSERT(p_l != NULL);
125  _GLIBCXX_DEBUG_ASSERT(p_l != m_p_l);
126  _GLIBCXX_DEBUG_ASSERT(p_l->m_p_next != NULL);
127  entry_pointer p_next_l = p_l->m_p_next->m_p_next;
128  actual_erase_entry(p_l->m_p_next);
129  p_l->m_p_next = p_next_l;
130}
131
132PB_DS_CLASS_T_DEC
133void
134PB_DS_CLASS_C_DEC::
135actual_erase_entry(entry_pointer p_l)
136{
137  _GLIBCXX_DEBUG_ONLY(map_debug_base::erase_existing(PB_DS_V2F(p_l->m_value));)
138  p_l->~entry();
139  s_entry_allocator.deallocate(p_l, 1);
140}
141
142