libstdc++
binary_heap_/point_const_iterator.hpp
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25// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
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35
36/**
37 * @file binary_heap_/point_const_iterator.hpp
38 * Contains an iterator class returned by the table's const find and insert
39 * methods.
40 */
41
42#ifndef PB_DS_BINARY_HEAP_CONST_FIND_ITERATOR_HPP
43#define PB_DS_BINARY_HEAP_CONST_FIND_ITERATOR_HPP
44
46#include <debug/debug.h>
47
48namespace __gnu_pbds
49{
50 namespace detail
51 {
52 /// Const point-type iterator.
53 template<typename Value_Type, typename Entry, bool Simple,
54 typename _Alloc>
56 {
57 protected:
58 typedef typename rebind_traits<_Alloc, Entry>::pointer entry_pointer;
59
60 public:
61 /// Category.
63
64 /// Difference type.
66
67 /// Iterator's value type.
68 typedef Value_Type value_type;
69
70 /// Iterator's pointer type.
72
73 /// Iterator's const pointer type.
76
77 /// Iterator's reference type.
78 typedef typename rebind_traits<_Alloc, value_type>::reference
80
81 /// Iterator's const reference type.
82 typedef typename rebind_traits<_Alloc, value_type>::const_reference
84
85 inline
86 binary_heap_point_const_iterator_(entry_pointer p_e) : m_p_e(p_e)
87 { }
88
89 /// Default constructor.
90 inline
92
93 /// Copy constructor.
94 inline
96 : m_p_e(other.m_p_e)
97 { }
98
99 /// Access.
100 inline const_pointer
102 {
103 _GLIBCXX_DEBUG_ASSERT(m_p_e != 0);
104 return to_ptr(integral_constant<int, Simple>());
105 }
106
107 /// Access.
108 inline const_reference
109 operator*() const
110 {
111 _GLIBCXX_DEBUG_ASSERT(m_p_e != 0);
112 return *to_ptr(integral_constant<int, Simple>());
113 }
114
115 /// Compares content to a different iterator object.
116 inline bool
118 { return m_p_e == other.m_p_e; }
119
120 /// Compares content (negatively) to a different iterator object.
121 inline bool
123 { return m_p_e != other.m_p_e; }
124
125 private:
126 inline const_pointer
127 to_ptr(true_type) const
128 { return m_p_e; }
129
130 inline const_pointer
131 to_ptr(false_type) const
132 { return *m_p_e; }
133
134 public:
135 entry_pointer m_p_e;
136 };
137 } // namespace detail
138} // namespace __gnu_pbds
139
140#endif
void trivial_iterator_difference_type
Prohibit moving trivial iterators.
GNU extensions for policy-based data structures for public use.
A trivial iterator tag. Signifies that the iterators has none of std::iterators's movement abilities.
Consistent API for accessing allocator-related types.
bool operator==(const binary_heap_point_const_iterator_ &other) const
Compares content to a different iterator object.
rebind_traits< _Alloc, value_type >::const_pointer const_pointer
Iterator's const pointer type.
rebind_traits< _Alloc, value_type >::pointer pointer
Iterator's pointer type.
binary_heap_point_const_iterator_(const binary_heap_point_const_iterator_ &other)
Copy constructor.
bool operator!=(const binary_heap_point_const_iterator_ &other) const
Compares content (negatively) to a different iterator object.
rebind_traits< _Alloc, value_type >::reference reference
Iterator's reference type.
trivial_iterator_difference_type difference_type
Difference type.
rebind_traits< _Alloc, value_type >::const_reference const_reference
Iterator's const reference type.