libstdc++: null_node_metadata.hpp Source File

libstdc++

null_node_metadata.hpp
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1// -*- C++ -*-
2
3// Copyright (C) 2005-2026 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 3, 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// 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/>.
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
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34// warranty.
35
36/**
37 * @file branch_policy/null_node_metadata.hpp
38 * Contains an implementation class for tree-like classes.
39 */
40
41#ifndef PB_DS_0_NODE_METADATA_HPP
42#define PB_DS_0_NODE_METADATA_HPP
43
44#include <ext/pb_ds/detail/types_traits.hpp>
45
46namespace __gnu_pbds
47{
48 namespace detail
49 {
50 /// Constant node iterator.
51 template<typename Key, typename Data, typename _Alloc>
52 struct dumnode_const_iterator
53 {
54 private:
55 typedef types_traits<Key, Data, _Alloc, false> __traits_type;
56 typedef typename __traits_type::pointer const_iterator;
57
58 public:
59 typedef const_iterator value_type;
60 typedef const_iterator const_reference;
61 typedef const_reference reference;
62 };
63 } // namespace detail
64} // namespace __gnu_pbds
65
66#endif
types_traits.hpp
__gnu_pbds
GNU extensions for policy-based data structures for public use.
Definition assoc_container.hpp:52
__gnu_pbds::detail::types_traits
Traits for abstract types.
Definition types_traits.hpp:156
__gnu_pbds::detail::dumnode_const_iterator
Constant node iterator.
Definition null_node_metadata.hpp:53