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// -*- C++ -*-
// Copyright (C) 2005, 2006, 2007, 2009, 2010 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 pat_trie_.hpp
* Contains an implementation class for a patricia tree.
*/
/**
* This implementation loosely borrows ideas from:
* 1) Fast Mergeable Integer Maps, Okasaki, Gill 1998
* 2) Ptset: Sets of integers implemented as Patricia trees,
* Jean-Christophe Filliatr, 2000
**/
#include <ext/pb_ds/detail/pat_trie_/synth_e_access_traits.hpp>
#include <ext/pb_ds/detail/pat_trie_/node_base.hpp>
#include <ext/pb_ds/exception.hpp>
#include <ext/pb_ds/tag_and_trait.hpp>
#include <ext/pb_ds/detail/eq_fn/eq_by_less.hpp>
#include <ext/pb_ds/detail/types_traits.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/detail/cond_dealtor.hpp>
#include <ext/pb_ds/detail/type_utils.hpp>
#include <iterator>
#include <utility>
#include <algorithm>
#include <functional>
#include <assert.h>
#include <list>
#ifdef _GLIBCXX_DEBUG
#include <ext/pb_ds/detail/debug_map_base.hpp>
#endif
#include <debug/debug.h>
namespace __gnu_pbds
{
namespace detail
{
#define PB_DS_CLASS_T_DEC \
template<typename Key, typename Mapped, typename Node_And_It_Traits, \
typename Allocator>
#ifdef PB_DS_DATA_TRUE_INDICATOR
#define PB_DS_CLASS_NAME pat_trie_data_
#endif
#ifdef PB_DS_DATA_FALSE_INDICATOR
#define PB_DS_CLASS_NAME pat_trie_no_data_
#endif
#define PB_DS_CLASS_C_DEC \
PB_DS_CLASS_NAME<Key, Mapped, Node_And_It_Traits, Allocator>
#define PB_DS_TYPES_TRAITS_C_DEC \
types_traits<Key, Mapped, Allocator, false>
#ifdef _GLIBCXX_DEBUG
#define PB_DS_DEBUG_MAP_BASE_C_DEC \
debug_map_base<Key, eq_by_less<Key, \
std::less<Key> >, typename Allocator::template rebind<Key>::other::const_reference>
#endif
#ifdef PB_DS_DATA_TRUE_INDICATOR
#define PB_DS_V2F(X) (X).first
#define PB_DS_V2S(X) (X).second
#define PB_DS_EP2VP(X)& ((X)->m_value)
#endif
#ifdef PB_DS_DATA_FALSE_INDICATOR
#define PB_DS_V2F(X) (X)
#define PB_DS_V2S(X) Mapped_Data()
#define PB_DS_EP2VP(X)& ((X)->m_value.first)
#endif
/**
* class description = PATRICIA trie implementation.">
**/
template<typename Key,
typename Mapped,
typename Node_And_It_Traits,
typename Allocator>
class PB_DS_CLASS_NAME :
#ifdef _GLIBCXX_DEBUG
public PB_DS_DEBUG_MAP_BASE_C_DEC,
#endif
public Node_And_It_Traits::synth_e_access_traits,
public Node_And_It_Traits::node_update,
public PB_DS_TYPES_TRAITS_C_DEC
{
private:
typedef PB_DS_TYPES_TRAITS_C_DEC traits_base;
typedef typename Node_And_It_Traits::synth_e_access_traits synth_e_access_traits;
typedef typename Allocator::template rebind<synth_e_access_traits>::other::const_pointer const_e_access_traits_pointer;
typedef typename synth_e_access_traits::const_iterator const_e_iterator;
typedef typename Node_And_It_Traits::node node;
typedef typename Allocator::template rebind<node>::other::const_pointer const_node_pointer;
typedef typename Allocator::template rebind<node>::other::pointer node_pointer;
typedef typename Node_And_It_Traits::head head;
typedef typename Allocator::template rebind<head>::other head_allocator;
typedef typename head_allocator::pointer head_pointer;
typedef typename Node_And_It_Traits::leaf leaf;
typedef typename Allocator::template rebind<leaf>::other leaf_allocator;
typedef typename leaf_allocator::const_pointer const_leaf_pointer;
typedef typename leaf_allocator::pointer leaf_pointer;
typedef typename Node_And_It_Traits::internal_node internal_node;
typedef typename Allocator::template rebind<internal_node>::other internal_node_allocator;
typedef typename internal_node_allocator::const_pointer const_internal_node_pointer;
typedef typename internal_node_allocator::pointer internal_node_pointer;
#include <ext/pb_ds/detail/pat_trie_/cond_dtor_entry_dealtor.hpp>
#ifdef _GLIBCXX_DEBUG
typedef PB_DS_DEBUG_MAP_BASE_C_DEC debug_base;
#endif
#include <ext/pb_ds/detail/pat_trie_/split_join_branch_bag.hpp>
typedef typename Node_And_It_Traits::null_node_update_pointer null_node_update_pointer;
public:
typedef pat_trie_tag container_category;
typedef Allocator allocator_type;
typedef typename Allocator::size_type size_type;
typedef typename Allocator::difference_type difference_type;
typedef typename traits_base::key_type key_type;
typedef typename traits_base::key_pointer key_pointer;
typedef typename traits_base::const_key_pointer const_key_pointer;
typedef typename traits_base::key_reference key_reference;
typedef typename traits_base::const_key_reference const_key_reference;
typedef typename traits_base::mapped_type mapped_type;
typedef typename traits_base::mapped_pointer mapped_pointer;
typedef typename traits_base::const_mapped_pointer const_mapped_pointer;
typedef typename traits_base::mapped_reference mapped_reference;
typedef typename traits_base::const_mapped_reference const_mapped_reference;
typedef typename traits_base::value_type value_type;
typedef typename traits_base::pointer pointer;
typedef typename traits_base::const_pointer const_pointer;
typedef typename traits_base::reference reference;
typedef typename traits_base::const_reference const_reference;
typedef typename Node_And_It_Traits::const_iterator const_point_iterator;
typedef typename Node_And_It_Traits::iterator point_iterator;
typedef const_point_iterator const_iterator;
typedef point_iterator iterator;
typedef typename Node_And_It_Traits::const_reverse_iterator const_reverse_iterator;
typedef typename Node_And_It_Traits::reverse_iterator reverse_iterator;
typedef typename Node_And_It_Traits::const_node_iterator const_node_iterator;
typedef typename Node_And_It_Traits::node_iterator node_iterator;
typedef typename Node_And_It_Traits::e_access_traits e_access_traits;
typedef typename Node_And_It_Traits::node_update node_update;
PB_DS_CLASS_NAME();
PB_DS_CLASS_NAME(const e_access_traits&);
PB_DS_CLASS_NAME(const PB_DS_CLASS_C_DEC&);
void
swap(PB_DS_CLASS_C_DEC&);
~PB_DS_CLASS_NAME();
inline bool
empty() const;
inline size_type
size() const;
inline size_type
max_size() const;
e_access_traits&
get_e_access_traits();
const e_access_traits&
get_e_access_traits() const;
node_update&
get_node_update();
const node_update&
get_node_update() const;
inline std::pair<point_iterator, bool>
insert(const_reference);
inline mapped_reference
operator[](const_key_reference r_key)
{
#ifdef PB_DS_DATA_TRUE_INDICATOR
return insert(std::make_pair(r_key, mapped_type())).first->second;
#else
insert(r_key);
return traits_base::s_null_mapped;
#endif
}
inline point_iterator
find(const_key_reference);
inline const_point_iterator
find(const_key_reference) const;
inline point_iterator
lower_bound(const_key_reference);
inline const_point_iterator
lower_bound(const_key_reference) const;
inline point_iterator
upper_bound(const_key_reference);
inline const_point_iterator
upper_bound(const_key_reference) const;
void
clear();
inline bool
erase(const_key_reference);
inline const_iterator
erase(const_iterator);
#ifdef PB_DS_DATA_TRUE_INDICATOR
inline iterator
erase(iterator);
#endif
inline const_reverse_iterator
erase(const_reverse_iterator);
#ifdef PB_DS_DATA_TRUE_INDICATOR
inline reverse_iterator
erase(reverse_iterator);
#endif
template<typename Pred>
inline size_type
erase_if(Pred);
void
join(PB_DS_CLASS_C_DEC&);
void
split(const_key_reference, PB_DS_CLASS_C_DEC&);
inline iterator
begin();
inline const_iterator
begin() const;
inline iterator
end();
inline const_iterator
end() const;
inline reverse_iterator
rbegin();
inline const_reverse_iterator
rbegin() const;
inline reverse_iterator
rend();
inline const_reverse_iterator
rend() const;
inline const_node_iterator
node_begin() const;
inline node_iterator
node_begin();
inline const_node_iterator
node_end() const;
inline node_iterator
node_end();
#ifdef PB_DS_PAT_TRIE_TRACE_
void
trace() const;
#endif
protected:
template<typename It>
void
copy_from_range(It, It);
void
value_swap(PB_DS_CLASS_C_DEC&);
node_pointer
recursive_copy_node(const_node_pointer);
private:
void
initialize();
inline void
apply_update(node_pointer, null_node_update_pointer);
template<typename Node_Update_>
inline void
apply_update(node_pointer, Node_Update_*);
bool
join_prep(PB_DS_CLASS_C_DEC&, split_join_branch_bag&);
void
rec_join_prep(const_node_pointer, const_node_pointer,
split_join_branch_bag&);
void
rec_join_prep(const_leaf_pointer, const_leaf_pointer,
split_join_branch_bag&);
void
rec_join_prep(const_leaf_pointer, const_internal_node_pointer,
split_join_branch_bag&);
void
rec_join_prep(const_internal_node_pointer, const_leaf_pointer,
split_join_branch_bag&);
void
rec_join_prep(const_internal_node_pointer, const_internal_node_pointer,
split_join_branch_bag&);
node_pointer
rec_join(node_pointer, node_pointer, size_type, split_join_branch_bag&);
node_pointer
rec_join(leaf_pointer, leaf_pointer, split_join_branch_bag&);
node_pointer
rec_join(leaf_pointer, internal_node_pointer, size_type,
split_join_branch_bag&);
node_pointer
rec_join(internal_node_pointer, leaf_pointer, size_type,
split_join_branch_bag&);
node_pointer
rec_join(internal_node_pointer, internal_node_pointer,
split_join_branch_bag&);
size_type
keys_diff_ind(typename e_access_traits::const_iterator, typename e_access_traits::const_iterator, typename e_access_traits::const_iterator, typename e_access_traits::const_iterator);
internal_node_pointer
insert_branch(node_pointer, node_pointer, split_join_branch_bag&);
void
update_min_max_for_inserted_leaf(leaf_pointer);
void
erase_leaf(leaf_pointer);
inline void
actual_erase_leaf(leaf_pointer);
void
clear_imp(node_pointer);
void
erase_fixup(internal_node_pointer);
void
update_min_max_for_erased_leaf(leaf_pointer);
static inline const_e_iterator
pref_begin(const_node_pointer);
static inline const_e_iterator
pref_end(const_node_pointer);
inline node_pointer
find_imp(const_key_reference);
inline node_pointer
lower_bound_imp(const_key_reference);
inline node_pointer
upper_bound_imp(const_key_reference);
inline static const_leaf_pointer
leftmost_descendant(const_node_pointer);
inline static leaf_pointer
leftmost_descendant(node_pointer);
inline static const_leaf_pointer
rightmost_descendant(const_node_pointer);
inline static leaf_pointer
rightmost_descendant(node_pointer);
#ifdef _GLIBCXX_DEBUG
void
assert_valid() const;
void
assert_iterators() const;
void
assert_reverse_iterators() const;
static size_type
recursive_count_leafs(const_node_pointer);
#endif
#ifdef PB_DS_PAT_TRIE_TRACE_
static void
trace_node(const_node_pointer, size_type);
template<typename Metadata_>
static void
trace_node_metadata(const_node_pointer, type_to_type<Metadata_>);
static void
trace_node_metadata(const_node_pointer, type_to_type<null_node_metadata>);
#endif
leaf_pointer
split_prep(const_key_reference, PB_DS_CLASS_C_DEC&,
split_join_branch_bag&);
node_pointer
rec_split(node_pointer, const_e_iterator, const_e_iterator,
PB_DS_CLASS_C_DEC&, split_join_branch_bag&);
void
split_insert_branch(size_type, const_e_iterator,
typename internal_node::iterator,
size_type, split_join_branch_bag&);
static head_allocator s_head_allocator;
static internal_node_allocator s_internal_node_allocator;
static leaf_allocator s_leaf_allocator;
head_pointer m_p_head;
size_type m_size;
};
#include <ext/pb_ds/detail/pat_trie_/constructors_destructor_fn_imps.hpp>
#include <ext/pb_ds/detail/pat_trie_/iterators_fn_imps.hpp>
#include <ext/pb_ds/detail/pat_trie_/insert_join_fn_imps.hpp>
#include <ext/pb_ds/detail/pat_trie_/erase_fn_imps.hpp>
#include <ext/pb_ds/detail/pat_trie_/find_fn_imps.hpp>
#include <ext/pb_ds/detail/pat_trie_/info_fn_imps.hpp>
#include <ext/pb_ds/detail/pat_trie_/policy_access_fn_imps.hpp>
#include <ext/pb_ds/detail/pat_trie_/split_fn_imps.hpp>
#include <ext/pb_ds/detail/pat_trie_/debug_fn_imps.hpp>
#include <ext/pb_ds/detail/pat_trie_/trace_fn_imps.hpp>
#include <ext/pb_ds/detail/pat_trie_/update_fn_imps.hpp>
#undef PB_DS_CLASS_C_DEC
#undef PB_DS_CLASS_T_DEC
#undef PB_DS_CLASS_NAME
#undef PB_DS_TYPES_TRAITS_C_DEC
#undef PB_DS_DEBUG_MAP_BASE_C_DEC
#undef PB_DS_V2F
#undef PB_DS_EP2VP
#undef PB_DS_V2S
} // namespace detail
} // namespace __gnu_pbds
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