1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
|
<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>Chapter 17. Iterator Classes for db_set and db_multiset</title>
<link rel="stylesheet" href="apiReference.css" type="text/css" />
<meta name="generator" content="DocBook XSL Stylesheets V1.73.2" />
<link rel="start" href="index.html" title="Berkeley DB C++ Standard Template Library API Reference" />
<link rel="up" href="index.html" title="Berkeley DB C++ Standard Template Library API Reference" />
<link rel="prev" href="stldb_map_iteratoroperator_assign.html" title="operator=" />
<link rel="next" href="db_set_base_iterator.html" title="Chapter 18. Db_set_base_iterator" />
</head>
<body>
<div xmlns="" class="navheader">
<div class="libver">
<p>Library Version 11.2.5.3</p>
</div>
<table width="100%" summary="Navigation header">
<tr>
<th colspan="3" align="center">Chapter 17. Iterator Classes for db_set and db_multiset </th>
</tr>
<tr>
<td width="20%" align="left"><a accesskey="p" href="stldb_map_iteratoroperator_assign.html">Prev</a> </td>
<th width="60%" align="center"> </th>
<td width="20%" align="right"> <a accesskey="n" href="db_set_base_iterator.html">Next</a></td>
</tr>
</table>
<hr />
</div>
<div class="chapter" lang="en" xml:lang="en">
<div class="titlepage">
<div>
<div>
<h2 class="title"><a id="dbset_iterators"></a>Chapter 17. Iterator Classes for db_set and db_multiset </h2>
</div>
</div>
</div>
<p><a class="link" href="db_set_base_iterator.html" title="Chapter 18. Db_set_base_iterator">db_set_base_iterator</a>
and <a class="link" href="db_set_iterator.html" title="Chapter 19. Db_set_iterator">db_set_iterator</a>
are the const iterator and iterator class for <a class="link" href="db_set.html" title="Chapter 7. Db_set">db_set</a>
and <a class="link" href="db_multiset.html" title="Chapter 8. Db_multiset">db_multiset</a>
. </p>
<p>They have identical behaviors to std::set::const_iterator and std::set::iterator respectively.</p>
<p>The difference between the two classes is that the <a class="link" href="db_set_base_iterator.html" title="Chapter 18. Db_set_base_iterator">db_set_base_iterator</a>
can only be used to read its referenced value, while <a class="link" href="db_set_iterator.html" title="Chapter 19. Db_set_iterator">db_set_iterator</a>
allows both read and write access. If the access pattern is readonly, it is strongly recommended that you use the const iterator because it is faster and more efficient.</p>
<p>The two classes inherit several functions from <a class="link" href="db_map_base_iterator.html" title="Chapter 15. Db_map_base_iterator">db_map_base_iterator</a>
and <a class="link" href="db_map_iterator.html" title="Chapter 16. Db_map_iterator">db_map_iterator</a>
respectively. </p>
<h4><a id="idp51192696"></a>
See Also
</h4>
<p> </p>
<p><a class="link" href="db_map_base_iterator.html" title="Chapter 15. Db_map_base_iterator">db_map_base_iterator</a>
<a class="link" href="db_map_iterator.html" title="Chapter 16. Db_map_iterator">db_map_iterator</a>
</p>
<p>
</p>
<h4><a id="idp51248384"></a> Public Members </h4>
<div class="informaltable">
<table border="1" width="80%">
<colgroup>
<col />
<col />
</colgroup>
<thead>
<tr>
<th>Member</th>
<th>Description</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<a class="link" href="db_set_base_iterator.html" title="Chapter 18. Db_set_base_iterator">
db_set_base_iterator</a>
</td>
<td>
db_set_base_iterator</td>
</tr>
<tr>
<td>
<a class="link" href="db_set_iterator.html" title="Chapter 19. Db_set_iterator">
db_set_iterator</a>
</td>
<td>
db_set_iterator</td>
</tr>
</tbody>
</table>
</div>
<h4><a id="idp51248768"></a>
Group</h4>
<p>
<a class="xref" href="dbstl_iterators.html" title="Chapter 9. Dbstl Iterator Classes">
Dbstl Iterator Classes </a>
</p>
</div>
<div class="navfooter">
<hr />
<table width="100%" summary="Navigation footer">
<tr>
<td width="40%" align="left"><a accesskey="p" href="stldb_map_iteratoroperator_assign.html">Prev</a> </td>
<td width="20%" align="center"> </td>
<td width="40%" align="right"> <a accesskey="n" href="db_set_base_iterator.html">Next</a></td>
</tr>
<tr>
<td width="40%" align="left" valign="top">operator= </td>
<td width="20%" align="center">
<a accesskey="h" href="index.html">Home</a>
</td>
<td width="40%" align="right" valign="top"> Chapter 18.
Db_set_base_iterator </td>
</tr>
</table>
</div>
</body>
</html>
|
