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// -*- C++ -*-
// Copyright (C) 2005-2018 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the terms
// of the GNU General Public License as published by the Free Software
// Foundation; either version 3, or (at your option) any later
// version.
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// General Public License for more details.
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// <http://www.gnu.org/licenses/>.
// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
// Permission to use, copy, modify, sell, and distribute this software
// is hereby granted without fee, provided that the above copyright
// notice appears in all copies, and that both that copyright notice
// and this permission notice appear in supporting documentation. None
// of the above authors, nor IBM Haifa Research Laboratories, make any
// representation about the suitability of this software for any
// purpose. It is provided "as is" without express or implied
// warranty.
/**
* @file ov_tree_map_/traits.hpp
* Contains an implementation class for ov_tree_.
*/
#ifndef PB_DS_OV_TREE_NODE_AND_IT_TRAITS_HPP
#define PB_DS_OV_TREE_NODE_AND_IT_TRAITS_HPP
#include <ext/pb_ds/detail/ov_tree_map_/node_iterators.hpp>
namespace __gnu_pbds
{
namespace detail
{
/// Tree traits.
/// @ingroup traits
template<typename Key,
typename Mapped,
class Cmp_Fn,
template<typename Node_CItr,
class Node_Itr,
class Cmp_Fn_,
typename _Alloc_>
class Node_Update,
typename _Alloc>
struct tree_traits<
Key,
Mapped,
Cmp_Fn,
Node_Update,
ov_tree_tag,
_Alloc>
{
private:
typedef
typename types_traits<
Key,
Mapped,
_Alloc,
false>::value_type
value_type;
public:
typedef
typename tree_node_metadata_dispatch<
Key,
Mapped,
Cmp_Fn,
Node_Update,
_Alloc>::type
metadata_type;
/// This is an iterator to an iterator: it iterates over nodes,
/// and de-referencing it returns one of the tree's iterators.
typedef
ov_tree_node_const_it_<
value_type,
metadata_type,
_Alloc>
node_const_iterator;
typedef
ov_tree_node_it_<
value_type,
metadata_type,
_Alloc>
node_iterator;
typedef
Node_Update<
node_const_iterator,
node_iterator,
Cmp_Fn,
_Alloc>
node_update;
typedef
__gnu_pbds::null_node_update<
node_const_iterator,
node_iterator,
Cmp_Fn,
_Alloc>*
null_node_update_pointer;
};
/// Specialization.
/// @ingroup traits
template<typename Key,
class Cmp_Fn,
template<typename Node_CItr,
class Node_Itr,
class Cmp_Fn_,
typename _Alloc_>
class Node_Update,
typename _Alloc>
struct tree_traits<
Key,
null_type,
Cmp_Fn,
Node_Update,
ov_tree_tag,
_Alloc>
{
private:
typedef
typename types_traits<
Key,
null_type,
_Alloc,
false>::value_type
value_type;
public:
typedef
typename tree_node_metadata_dispatch<
Key,
null_type,
Cmp_Fn,
Node_Update,
_Alloc>::type
metadata_type;
/// This is an iterator to an iterator: it iterates over nodes,
/// and de-referencing it returns one of the tree's iterators.
typedef
ov_tree_node_const_it_<
value_type,
metadata_type,
_Alloc>
node_const_iterator;
typedef node_const_iterator node_iterator;
typedef
Node_Update<
node_const_iterator,
node_const_iterator,
Cmp_Fn,
_Alloc>
node_update;
typedef
__gnu_pbds::null_node_update<
node_const_iterator,
node_iterator,
Cmp_Fn,
_Alloc>*
null_node_update_pointer;
};
} // namespace detail
} // namespace __gnu_pbds
#endif // #ifndef PB_DS_OV_TREE_NODE_AND_IT_TRAITS_HPP
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