ov_tree_map_.hpp
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// -*- C++ -*-
// Copyright (C) 2005-2013 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_/ov_tree_map_.hpp
* Contains an implementation class for ov_tree.
*/
#include <map>
#include <set>
#include <ext/pb_ds/exception.hpp>
#include <ext/pb_ds/tree_policy.hpp>
#include <ext/pb_ds/detail/eq_fn/eq_by_less.hpp>
#include <ext/pb_ds/detail/types_traits.hpp>
#include <ext/pb_ds/detail/type_utils.hpp>
#include <ext/pb_ds/detail/tree_trace_base.hpp>
#ifdef _GLIBCXX_DEBUG
#include <ext/pb_ds/detail/debug_map_base.hpp>
#endif
#include <utility>
#include <functional>
#include <algorithm>
#include <vector>
#include <assert.h>
#include <debug/debug.h>
namespace __gnu_pbds
{
namespace detail
{
#ifdef PB_DS_DATA_TRUE_INDICATOR
#define PB_DS_OV_TREE_NAME ov_tree_map
#define PB_DS_CONST_NODE_ITERATOR_NAME ov_tree_node_const_iterator_map
#endif
#ifdef PB_DS_DATA_FALSE_INDICATOR
#define PB_DS_OV_TREE_NAME ov_tree_set
#define PB_DS_CONST_NODE_ITERATOR_NAME ov_tree_node_const_iterator_set
#endif
#define PB_DS_CLASS_T_DEC \
template<typename Key, typename Mapped, typename Cmp_Fn, \
typename Node_And_It_Traits, typename _Alloc>
#define PB_DS_CLASS_C_DEC \
PB_DS_OV_TREE_NAME<Key, Mapped, Cmp_Fn, Node_And_It_Traits, _Alloc>
#define PB_DS_OV_TREE_TRAITS_BASE \
types_traits<Key, Mapped, _Alloc, false>
#ifdef _GLIBCXX_DEBUG
#define PB_DS_DEBUG_MAP_BASE_C_DEC \
debug_map_base<Key, eq_by_less<Key, Cmp_Fn>, \
typename _Alloc::template rebind<Key>::other::const_reference>
#endif
#ifdef PB_DS_TREE_TRACE
#define PB_DS_TREE_TRACE_BASE_C_DEC \
tree_trace_base<typename Node_And_It_Traits::node_const_iterator, \
typename Node_And_It_Traits::node_iterator, \
Cmp_Fn, false, _Alloc>
#endif
#ifndef PB_DS_CHECK_KEY_EXISTS
# error Missing definition
#endif
/**
* @brief Ordered-vector tree associative-container.
* @ingroup branch-detail
*/
template<typename Key, typename Mapped, typename Cmp_Fn,
typename Node_And_It_Traits, typename _Alloc>
class PB_DS_OV_TREE_NAME :
#ifdef _GLIBCXX_DEBUG
protected PB_DS_DEBUG_MAP_BASE_C_DEC,
#endif
#ifdef PB_DS_TREE_TRACE
public PB_DS_TREE_TRACE_BASE_C_DEC,
#endif
public Cmp_Fn,
public Node_And_It_Traits::node_update,
public PB_DS_OV_TREE_TRAITS_BASE
{
private:
typedef PB_DS_OV_TREE_TRAITS_BASE traits_base;
typedef Node_And_It_Traits traits_type;
typedef typename remove_const<typename traits_base::value_type>::type non_const_value_type;
typedef typename _Alloc::template rebind<non_const_value_type>::other value_allocator;
typedef typename value_allocator::pointer value_vector;
#ifdef _GLIBCXX_DEBUG
typedef PB_DS_DEBUG_MAP_BASE_C_DEC debug_base;
#endif
#ifdef PB_DS_TREE_TRACE
typedef PB_DS_TREE_TRACE_BASE_C_DEC trace_base;
#endif
typedef typename traits_base::pointer mapped_pointer_;
typedef typename traits_base::const_pointer mapped_const_pointer_;
typedef typename traits_type::metadata_type metadata_type;
typedef typename _Alloc::template rebind<metadata_type>::other metadata_allocator;
typedef typename metadata_allocator::pointer metadata_pointer;
typedef typename metadata_allocator::const_reference metadata_const_reference;
typedef typename metadata_allocator::reference metadata_reference;
typedef typename traits_type::null_node_update_pointer
null_node_update_pointer;
public:
typedef ov_tree_tag container_category;
typedef _Alloc allocator_type;
typedef typename _Alloc::size_type size_type;
typedef typename _Alloc::difference_type difference_type;
typedef Cmp_Fn cmp_fn;
typedef typename traits_base::key_type key_type;
typedef typename traits_base::key_pointer key_pointer;
typedef typename traits_base::key_const_pointer key_const_pointer;
typedef typename traits_base::key_reference key_reference;
typedef typename traits_base::key_const_reference key_const_reference;
typedef typename traits_base::mapped_type mapped_type;
typedef typename traits_base::mapped_pointer mapped_pointer;
typedef typename traits_base::mapped_const_pointer mapped_const_pointer;
typedef typename traits_base::mapped_reference mapped_reference;
typedef typename traits_base::mapped_const_reference mapped_const_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 const_pointer point_const_iterator;
#ifdef PB_DS_DATA_TRUE_INDICATOR
typedef pointer point_iterator;
#else
typedef point_const_iterator point_iterator;
#endif
typedef point_iterator iterator;
typedef point_const_iterator const_iterator;
/// Conditional destructor.
template<typename Size_Type>
class cond_dtor
{
public:
cond_dtor(value_vector a_vec, iterator& r_last_it,
Size_Type total_size)
: m_a_vec(a_vec), m_r_last_it(r_last_it), m_max_size(total_size),
m_no_action(false)
{ }
~cond_dtor()
{
if (m_no_action)
return;
iterator it = m_a_vec;
while (it != m_r_last_it)
{
it->~value_type();
++it;
}
if (m_max_size > 0)
value_allocator().deallocate(m_a_vec, m_max_size);
}
inline void
set_no_action()
{ m_no_action = true; }
protected:
value_vector m_a_vec;
iterator& m_r_last_it;
const Size_Type m_max_size;
bool m_no_action;
};
typedef typename traits_type::node_update node_update;
typedef typename traits_type::node_iterator node_iterator;
typedef typename traits_type::node_const_iterator node_const_iterator;
PB_DS_OV_TREE_NAME();
PB_DS_OV_TREE_NAME(const Cmp_Fn&);
PB_DS_OV_TREE_NAME(const Cmp_Fn&, const node_update&);
PB_DS_OV_TREE_NAME(const PB_DS_CLASS_C_DEC&);
~PB_DS_OV_TREE_NAME();
void
swap(PB_DS_CLASS_C_DEC&);
template<typename It>
void
copy_from_range(It, It);
inline size_type
max_size() const;
inline bool
empty() const;
inline size_type
size() const;
Cmp_Fn&
get_cmp_fn();
const Cmp_Fn&
get_cmp_fn() const;
inline mapped_reference
operator[](key_const_reference r_key)
{
#ifdef PB_DS_DATA_TRUE_INDICATOR
PB_DS_ASSERT_VALID((*this))
point_iterator it = lower_bound(r_key);
if (it != end() && !Cmp_Fn::operator()(r_key, PB_DS_V2F(*it)))
{
PB_DS_CHECK_KEY_EXISTS(r_key)
PB_DS_ASSERT_VALID((*this))
return it->second;
}
return insert_new_val(it, std::make_pair(r_key, mapped_type()))->second;
#else
insert(r_key);
return traits_base::s_null_type;
#endif
}
inline std::pair<point_iterator, bool>
insert(const_reference r_value)
{
PB_DS_ASSERT_VALID((*this))
key_const_reference r_key = PB_DS_V2F(r_value);
point_iterator it = lower_bound(r_key);
if (it != end()&& !Cmp_Fn::operator()(r_key, PB_DS_V2F(*it)))
{
PB_DS_ASSERT_VALID((*this))
PB_DS_CHECK_KEY_EXISTS(r_key)
return std::make_pair(it, false);
}
return std::make_pair(insert_new_val(it, r_value), true);
}
inline point_iterator
lower_bound(key_const_reference r_key)
{
pointer it = m_a_values;
pointer e_it = m_a_values + m_size;
while (it != e_it)
{
pointer mid_it = it + ((e_it - it) >> 1);
if (cmp_fn::operator()(PB_DS_V2F(*mid_it), r_key))
it = ++mid_it;
else
e_it = mid_it;
}
return it;
}
inline point_const_iterator
lower_bound(key_const_reference r_key) const
{ return const_cast<PB_DS_CLASS_C_DEC& >(*this).lower_bound(r_key); }
inline point_iterator
upper_bound(key_const_reference r_key)
{
iterator pot_it = lower_bound(r_key);
if (pot_it != end() && !Cmp_Fn::operator()(r_key, PB_DS_V2F(*pot_it)))
{
PB_DS_CHECK_KEY_EXISTS(r_key)
return ++pot_it;
}
PB_DS_CHECK_KEY_DOES_NOT_EXIST(r_key)
return pot_it;
}
inline point_const_iterator
upper_bound(key_const_reference r_key) const
{ return const_cast<PB_DS_CLASS_C_DEC&>(*this).upper_bound(r_key); }
inline point_iterator
find(key_const_reference r_key)
{
PB_DS_ASSERT_VALID((*this))
iterator pot_it = lower_bound(r_key);
if (pot_it != end() && !Cmp_Fn::operator()(r_key, PB_DS_V2F(*pot_it)))
{
PB_DS_CHECK_KEY_EXISTS(r_key)
return pot_it;
}
PB_DS_CHECK_KEY_DOES_NOT_EXIST(r_key)
return end();
}
inline point_const_iterator
find(key_const_reference r_key) const
{ return (const_cast<PB_DS_CLASS_C_DEC&>(*this).find(r_key)); }
bool
erase(key_const_reference);
template<typename Pred>
inline size_type
erase_if(Pred);
inline iterator
erase(iterator it)
{ return erase_imp<iterator>(it); }
void
clear();
void
join(PB_DS_CLASS_C_DEC&);
void
split(key_const_reference, PB_DS_CLASS_C_DEC&);
inline iterator
begin()
{ return m_a_values; }
inline const_iterator
begin() const
{ return m_a_values; }
inline iterator
end()
{ return m_end_it; }
inline const_iterator
end() const
{ return m_end_it; }
/// Returns a const node_iterator corresponding to the node at the
/// root of the tree.
inline node_const_iterator
node_begin() const;
/// Returns a node_iterator corresponding to the node at the
/// root of the tree.
inline node_iterator
node_begin();
/// Returns a const node_iterator corresponding to a node just
/// after a leaf of the tree.
inline node_const_iterator
node_end() const;
/// Returns a node_iterator corresponding to a node just
/// after a leaf of the tree.
inline node_iterator
node_end();
private:
inline void
update(node_iterator, null_node_update_pointer);
template<typename Node_Update>
void
update(node_iterator, Node_Update*);
void
reallocate_metadata(null_node_update_pointer, size_type);
template<typename Node_Update_>
void
reallocate_metadata(Node_Update_*, size_type);
template<typename It>
void
copy_from_ordered_range(It, It);
void
value_swap(PB_DS_CLASS_C_DEC&);
template<typename It>
void
copy_from_ordered_range(It, It, It, It);
template<typename Ptr>
inline static Ptr
mid_pointer(Ptr p_begin, Ptr p_end)
{
_GLIBCXX_DEBUG_ASSERT(p_end >= p_begin);
return (p_begin + (p_end - p_begin) / 2);
}
inline iterator
insert_new_val(iterator it, const_reference r_value)
{
#ifdef PB_DS_REGRESSION
typename _Alloc::group_adjustor adjust(m_size);
#endif
PB_DS_CHECK_KEY_DOES_NOT_EXIST(PB_DS_V2F(r_value))
value_vector a_values = s_value_alloc.allocate(m_size + 1);
iterator source_it = begin();
iterator source_end_it = end();
iterator target_it = a_values;
iterator ret_it;
cond_dtor<size_type> cd(a_values, target_it, m_size + 1);
while (source_it != it)
{
new (const_cast<void*>(static_cast<const void*>(target_it)))
value_type(*source_it++);
++target_it;
}
new (const_cast<void*>(static_cast<const void*>(ret_it = target_it)))
value_type(r_value);
++target_it;
while (source_it != source_end_it)
{
new (const_cast<void*>(static_cast<const void*>(target_it)))
value_type(*source_it++);
++target_it;
}
reallocate_metadata((node_update*)this, m_size + 1);
cd.set_no_action();
if (m_size != 0)
{
cond_dtor<size_type> cd1(m_a_values, m_end_it, m_size);
}
++m_size;
m_a_values = a_values;
m_end_it = m_a_values + m_size;
_GLIBCXX_DEBUG_ONLY(debug_base::insert_new(PB_DS_V2F(r_value)));
update(node_begin(), (node_update* )this);
PB_DS_ASSERT_VALID((*this))
return ret_it;
}
#ifdef _GLIBCXX_DEBUG
void
assert_valid(const char*, int) const;
void
assert_iterators(const char*, int) const;
#endif
template<typename It>
It
erase_imp(It);
inline node_const_iterator
PB_DS_node_begin_imp() const;
inline node_const_iterator
PB_DS_node_end_imp() const;
inline node_iterator
PB_DS_node_begin_imp();
inline node_iterator
PB_DS_node_end_imp();
private:
static value_allocator s_value_alloc;
static metadata_allocator s_metadata_alloc;
value_vector m_a_values;
metadata_pointer m_a_metadata;
iterator m_end_it;
size_type m_size;
};
#include <ext/pb_ds/detail/ov_tree_map_/constructors_destructor_fn_imps.hpp>
#include <ext/pb_ds/detail/ov_tree_map_/iterators_fn_imps.hpp>
#include <ext/pb_ds/detail/ov_tree_map_/debug_fn_imps.hpp>
#include <ext/pb_ds/detail/ov_tree_map_/erase_fn_imps.hpp>
#include <ext/pb_ds/detail/ov_tree_map_/insert_fn_imps.hpp>
#include <ext/pb_ds/detail/ov_tree_map_/info_fn_imps.hpp>
#include <ext/pb_ds/detail/ov_tree_map_/split_join_fn_imps.hpp>
#include <ext/pb_ds/detail/bin_search_tree_/policy_access_fn_imps.hpp>
#undef PB_DS_CLASS_C_DEC
#undef PB_DS_CLASS_T_DEC
#undef PB_DS_OV_TREE_NAME
#undef PB_DS_OV_TREE_TRAITS_BASE
#undef PB_DS_DEBUG_MAP_BASE_C_DEC
#ifdef PB_DS_TREE_TRACE
#undef PB_DS_TREE_TRACE_BASE_C_DEC
#endif
#undef PB_DS_CONST_NODE_ITERATOR_NAME
} // namespace detail
} // namespace __gnu_pbds