// -*- C++ -*-
// Copyright (C) 2005-2015 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 left_child_next_sibling_heap_/left_child_next_sibling_heap_.hpp
* Contains an implementation class for a basic heap.
*/
#ifndef PB_DS_LEFT_CHILD_NEXT_SIBLING_HEAP_HPP
#define PB_DS_LEFT_CHILD_NEXT_SIBLING_HEAP_HPP
/*
* Based on CLRS.
*/
#include <iterator>
#include <ext/pb_ds/detail/cond_dealtor.hpp>
#include <ext/pb_ds/detail/type_utils.hpp>
#include <ext/pb_ds/detail/left_child_next_sibling_heap_/node.hpp>
#include <ext/pb_ds/detail/left_child_next_sibling_heap_/point_const_iterator.hpp>
#include <ext/pb_ds/detail/left_child_next_sibling_heap_/const_iterator.hpp>
#ifdef PB_DS_LC_NS_HEAP_TRACE_
#include <iostream>
#endif
#include <debug/debug.h>
namespace __gnu_pbds
{
namespace detail
{
#ifdef _GLIBCXX_DEBUG
#define PB_DS_CLASS_T_DEC \
template<typename Value_Type, typename Cmp_Fn, typename Node_Metadata, \
typename _Alloc, bool Single_Link_Roots>
#define PB_DS_CLASS_C_DEC \
left_child_next_sibling_heap<Value_Type, Cmp_Fn, Node_Metadata, \
_Alloc, Single_Link_Roots>
#else
#define PB_DS_CLASS_T_DEC \
template<typename Value_Type, typename Cmp_Fn, typename Node_Metadata, \
typename _Alloc>
#define PB_DS_CLASS_C_DEC \
left_child_next_sibling_heap<Value_Type, Cmp_Fn, Node_Metadata, _Alloc>
#endif
/// Base class for a basic heap.
template<typename Value_Type,
typename Cmp_Fn,
typename Node_Metadata,
typename _Alloc
#ifdef _GLIBCXX_DEBUG
,bool Single_Link_Roots>
#else
>
#endif
class left_child_next_sibling_heap : public Cmp_Fn
{
protected:
typedef
typename _Alloc::template rebind<
left_child_next_sibling_heap_node_<Value_Type, Node_Metadata,
_Alloc> >::other
node_allocator;
typedef typename node_allocator::value_type node;
typedef typename node_allocator::pointer node_pointer;
typedef typename node_allocator::const_pointer node_const_pointer;
typedef Node_Metadata node_metadata;
typedef std::pair< node_pointer, node_pointer> node_pointer_pair;
private:
typedef cond_dealtor< node, _Alloc> cond_dealtor_t;
enum
{
simple_value = is_simple<Value_Type>::value
};
typedef integral_constant<int, simple_value> no_throw_copies_t;
typedef typename _Alloc::template rebind<Value_Type> __rebind_v;
public:
typedef typename _Alloc::size_type size_type;
typedef typename _Alloc::difference_type difference_type;
typedef Value_Type value_type;
typedef typename __rebind_v::other::pointer pointer;
typedef typename __rebind_v::other::const_pointer const_pointer;
typedef typename __rebind_v::other::reference reference;
typedef typename __rebind_v::other::const_reference const_reference;
typedef left_child_next_sibling_heap_node_point_const_iterator_<node, _Alloc>
point_const_iterator;
typedef point_const_iterator point_iterator;
typedef left_child_next_sibling_heap_const_iterator_<node, _Alloc>
const_iterator;
typedef const_iterator iterator;
typedef Cmp_Fn cmp_fn;
typedef _Alloc allocator_type;
left_child_next_sibling_heap();
left_child_next_sibling_heap(const Cmp_Fn&);
left_child_next_sibling_heap(const left_child_next_sibling_heap&);
void
swap(PB_DS_CLASS_C_DEC&);
~left_child_next_sibling_heap();
inline bool
empty() const;
inline size_type
size() const;
inline size_type
max_size() const;
Cmp_Fn&
get_cmp_fn();
const Cmp_Fn&
get_cmp_fn() const;
inline iterator
begin();
inline const_iterator
begin() const;
inline iterator
end();
inline const_iterator
end() const;
void
clear();
#ifdef PB_DS_LC_NS_HEAP_TRACE_
void
trace() const;
#endif
protected:
inline node_pointer
get_new_node_for_insert(const_reference);
inline static void
make_child_of(node_pointer, node_pointer);
void
value_swap(left_child_next_sibling_heap&);
inline static node_pointer
parent(node_pointer);
inline void
swap_with_parent(node_pointer, node_pointer);
void
bubble_to_top(node_pointer);
inline void
actual_erase_node(node_pointer);
void
clear_imp(node_pointer);
void
to_linked_list();
template<typename Pred>
node_pointer
prune(Pred);
#ifdef _GLIBCXX_DEBUG
void
assert_valid(const char*, int) const;
void
assert_node_consistent(node_const_pointer, bool, const char*, int) const;
static size_type
size_under_node(node_const_pointer);
static size_type
degree(node_const_pointer);
#endif
#ifdef PB_DS_LC_NS_HEAP_TRACE_
static void
trace_node(node_const_pointer, size_type);
#endif
private:
#ifdef _GLIBCXX_DEBUG
void
assert_iterators(const char*, int) const;
void
assert_size(const char*, int) const;
static size_type
size_from_node(node_const_pointer);
#endif
node_pointer
recursive_copy_node(node_const_pointer);
inline node_pointer
get_new_node_for_insert(const_reference, false_type);
inline node_pointer
get_new_node_for_insert(const_reference, true_type);
#ifdef PB_DS_LC_NS_HEAP_TRACE_
template<typename Metadata_>
static void
trace_node_metadata(node_const_pointer, type_to_type<Metadata_>);
static void
trace_node_metadata(node_const_pointer, type_to_type<null_type>);
#endif
static node_allocator s_node_allocator;
static no_throw_copies_t s_no_throw_copies_ind;
protected:
node_pointer m_p_root;
size_type m_size;
};
#include <ext/pb_ds/detail/left_child_next_sibling_heap_/constructors_destructor_fn_imps.hpp>
#include <ext/pb_ds/detail/left_child_next_sibling_heap_/iterators_fn_imps.hpp>
#include <ext/pb_ds/detail/left_child_next_sibling_heap_/debug_fn_imps.hpp>
#include <ext/pb_ds/detail/left_child_next_sibling_heap_/trace_fn_imps.hpp>
#include <ext/pb_ds/detail/left_child_next_sibling_heap_/insert_fn_imps.hpp>
#include <ext/pb_ds/detail/left_child_next_sibling_heap_/erase_fn_imps.hpp>
#include <ext/pb_ds/detail/left_child_next_sibling_heap_/info_fn_imps.hpp>
#include <ext/pb_ds/detail/left_child_next_sibling_heap_/policy_access_fn_imps.hpp>
#undef PB_DS_CLASS_C_DEC
#undef PB_DS_CLASS_T_DEC
} // namespace detail
} // namespace __gnu_pbds
#endif