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 find_fn_imps.hpp
44 * Contains implementations of lu_map_.
45 */
46
47PB_DS_CLASS_T_DEC
48inline typename PB_DS_CLASS_C_DEC::entry_pointer
49PB_DS_CLASS_C_DEC::
50find_imp(const_key_reference r_key) const
51{
52  if (m_p_l == NULL)
53    return NULL;
54  if (s_eq_fn(r_key, PB_DS_V2F(m_p_l->m_value)))
55    {
56      apply_update(m_p_l, s_metadata_type_indicator);
57      _GLIBCXX_DEBUG_ONLY(map_debug_base::check_key_exists(r_key);)
58      return m_p_l;
59    }
60
61  entry_pointer p_l = m_p_l;
62  while (p_l->m_p_next != NULL)
63    {
64      entry_pointer p_next = p_l->m_p_next;
65      if (s_eq_fn(r_key, PB_DS_V2F(p_next->m_value)))
66        {
67	  if (apply_update(p_next, s_metadata_type_indicator))
68            {
69	      p_l->m_p_next = p_next->m_p_next;
70	      p_next->m_p_next = m_p_l;
71	      m_p_l = p_next;
72	      return m_p_l;
73            }
74	  return p_next;
75        }
76      else
77	p_l = p_next;
78    }
79
80  _GLIBCXX_DEBUG_ONLY(map_debug_base::check_key_does_not_exist(r_key);)
81  return NULL;
82}
83
84PB_DS_CLASS_T_DEC
85template<typename Metadata>
86inline bool
87PB_DS_CLASS_C_DEC::
88apply_update(entry_pointer p_l, type_to_type<Metadata>)
89{ return s_update_policy(p_l->m_update_metadata); }
90
91PB_DS_CLASS_T_DEC
92inline bool
93PB_DS_CLASS_C_DEC::
94apply_update(entry_pointer, type_to_type<null_lu_metadata>)
95{ return s_update_policy(s_null_lu_metadata); }
96
97