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 cc_ht_map_'s erase related functions.
45 */
46
47PB_DS_CLASS_T_DEC
48inline void
49PB_DS_CLASS_C_DEC::
50erase_entry_pointer(entry_pointer& r_p_e)
51{
52  _GLIBCXX_DEBUG_ONLY(map_debug_base::erase_existing(PB_DS_V2F(r_p_e->m_value)));
53
54  entry_pointer p_e = r_p_e;
55  r_p_e = r_p_e->m_p_next;
56  rels_entry(p_e);
57  _GLIBCXX_DEBUG_ASSERT(m_num_used_e > 0);
58  resize_base::notify_erased(--m_num_used_e);
59}
60
61PB_DS_CLASS_T_DEC
62template<typename Pred>
63inline typename PB_DS_CLASS_C_DEC::size_type
64PB_DS_CLASS_C_DEC::
65erase_if(Pred pred)
66{
67  size_type num_ersd = 0;
68  for (size_type pos = 0; pos < m_num_e; ++pos)
69    {
70      while (m_entries[pos] != NULL && pred(m_entries[pos]->m_value))
71        {
72	  ++num_ersd;
73	  entry_pointer p_next_e = m_entries[pos]->m_p_next;
74	  erase_entry_pointer(m_entries[pos]);
75	  m_entries[pos] = p_next_e;
76        }
77
78      entry_pointer p_e = m_entries[pos];
79      while (p_e != NULL && p_e->m_p_next != NULL)
80        {
81	  if (pred(p_e->m_p_next->m_value))
82            {
83	      ++num_ersd;
84	      erase_entry_pointer(p_e->m_p_next);
85            }
86	  else
87	    p_e = p_e->m_p_next;
88        }
89    }
90
91  do_resize_if_needed_no_throw();
92  return num_ersd;
93}
94
95PB_DS_CLASS_T_DEC
96void
97PB_DS_CLASS_C_DEC::
98clear()
99{
100  for (size_type pos = 0; pos < m_num_e; ++pos)
101    while (m_entries[pos] != NULL)
102      erase_entry_pointer(m_entries[pos]);
103  do_resize_if_needed_no_throw();
104  resize_base::notify_cleared();
105}
106
107#include <ext/pb_ds/detail/cc_hash_table_map_/erase_no_store_hash_fn_imps.hpp>
108#include <ext/pb_ds/detail/cc_hash_table_map_/erase_store_hash_fn_imps.hpp>
109
110