ov_tree_map_/traits.hpp
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// -*- C++ -*-
// Copyright (C) 2005-2021 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
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// version.
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
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// General Public License for more details.
// Under Section 7 of GPL version 3, you are granted additional
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// 3.1, as published by the Free Software Foundation.
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// a copy of the GCC Runtime Library Exception along with this program;
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// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
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/**
* @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
__gnu_pbds
GNU extensions for policy-based data structures for public use.
Definition: assoc_container.hpp:52
std::pair
Struct holding two objects of arbitrary type.
Definition: stl_pair.h:213
__gnu_pbds::ov_tree_tag
Ordered-vector tree.
Definition: tag_and_trait.hpp:159
__gnu_pbds::null_type
Represents no type, or absence of type, for template tricks.
Definition: tag_and_trait.hpp:210
__gnu_pbds::null_node_update
A null node updator, indicating that no node updates are required.
Definition: tag_and_trait.hpp:215
__gnu_pbds::detail::types_traits
Traits for abstract types.
Definition: types_traits.hpp:156
__gnu_pbds::detail::tree_traits
Tree traits class, primary template.
Definition: branch_policy/traits.hpp:70
__gnu_pbds::detail::ov_tree_node_const_it_
Const node reference.
Definition: ov_tree_map_/node_iterators.hpp:58
__gnu_pbds::detail::ov_tree_node_it_
Node reference.
Definition: ov_tree_map_/node_iterators.hpp:198
__gnu_pbds::detail::tree_traits< Key, Mapped, Cmp_Fn, Node_Update, ov_tree_tag, _Alloc >::node_const_iterator
ov_tree_node_const_it_< value_type, metadata_type, _Alloc > node_const_iterator
This is an iterator to an iterator: it iterates over nodes, and de-referencing it returns one of the ...
Definition: ov_tree_map_/traits.hpp:95
__gnu_pbds::detail::tree_traits< Key, null_type, Cmp_Fn, Node_Update, ov_tree_tag, _Alloc >::node_const_iterator
ov_tree_node_const_it_< value_type, metadata_type, _Alloc > node_const_iterator
This is an iterator to an iterator: it iterates over nodes, and de-referencing it returns one of the ...
Definition: ov_tree_map_/traits.hpp:166
__gnu_pbds::detail::tree_node_metadata_dispatch
Tree node metadata dispatch.
Definition: tree_policy/node_metadata_selector.hpp:85
node_iterators.hpp