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
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<!-- /home/espenr/tmp/qt-3.3.8-espenr-2499/qt-x11-free-3.3.8/doc/qintcache.doc:281 -->
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>QIntCacheIterator Class</title>
<style type="text/css"><!--
fn { margin-left: 1cm; text-indent: -1cm; }
a:link { color: #004faf; text-decoration: none }
a:visited { color: #672967; text-decoration: none }
body { background: #ffffff; color: black; }
--></style>
</head>
<body>
<table border="0" cellpadding="0" cellspacing="0" width="100%">
<tr bgcolor="#E5E5E5">
<td valign=center>
<a href="index.html">
<font color="#004faf">Home</font></a>
| <a href="classes.html">
<font color="#004faf">All Classes</font></a>
| <a href="mainclasses.html">
<font color="#004faf">Main Classes</font></a>
| <a href="annotated.html">
<font color="#004faf">Annotated</font></a>
| <a href="groups.html">
<font color="#004faf">Grouped Classes</font></a>
| <a href="functions.html">
<font color="#004faf">Functions</font></a>
</td>
<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QIntCacheIterator Class Reference</h1>
<p>The QIntCacheIterator class provides an iterator for QIntCache collections.
<a href="#details">More...</a>
<p><tt>#include <<a href="qintcache-h.html">qintcache.h</a>></tt>
<p><a href="qintcacheiterator-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li class=fn><a href="#QIntCacheIterator"><b>QIntCacheIterator</b></a> ( const QIntCache<type> & cache )</li>
<li class=fn><a href="#QIntCacheIterator-2"><b>QIntCacheIterator</b></a> ( const QIntCacheIterator<type> & ci )</li>
<li class=fn>QIntCacheIterator<type> & <a href="#operator-eq"><b>operator=</b></a> ( const QIntCacheIterator<type> & ci )</li>
<li class=fn>uint <a href="#count"><b>count</b></a> () const</li>
<li class=fn>bool <a href="#isEmpty"><b>isEmpty</b></a> () const</li>
<li class=fn>bool <a href="#atFirst"><b>atFirst</b></a> () const</li>
<li class=fn>bool <a href="#atLast"><b>atLast</b></a> () const</li>
<li class=fn>type * <a href="#toFirst"><b>toFirst</b></a> ()</li>
<li class=fn>type * <a href="#toLast"><b>toLast</b></a> ()</li>
<li class=fn><a href="#operator-type-*"><b>operator type *</b></a> () const</li>
<li class=fn>type * <a href="#current"><b>current</b></a> () const</li>
<li class=fn>long <a href="#currentKey"><b>currentKey</b></a> () const</li>
<li class=fn>type * <a href="#operator()"><b>operator()</b></a> ()</li>
<li class=fn>type * <a href="#operator++"><b>operator++</b></a> ()</li>
<li class=fn>type * <a href="#operator+-eq"><b>operator+=</b></a> ( uint jump )</li>
<li class=fn>type * <a href="#operator--"><b>operator--</b></a> ()</li>
<li class=fn>type * <a href="#operator--eq"><b>operator-=</b></a> ( uint jump )</li>
</ul>
<hr><a name="details"></a><h2>Detailed Description</h2>
The QIntCacheIterator class provides an iterator for <a href="qintcache.html">QIntCache</a> collections.
<p>
<p> Note that the traversal order is arbitrary; you are not guaranteed
any particular order. If new objects are inserted into the cache
while the iterator is active, the iterator may or may not see
them.
<p> Multiple iterators are completely independent, even when they
operate on the same QIntCache. QIntCache updates all iterators
that refer an item when that item is removed.
<p> QIntCacheIterator provides an <a href="#operator++">operator++</a>(), and an <a href="#operator+-eq">operator+=</a>() to
traverse the cache; <a href="#current">current</a>() and <a href="#currentKey">currentKey</a>() to access the
current cache item and its key; <a href="#atFirst">atFirst</a>() <a href="#atLast">atLast</a>(), which return
TRUE if the iterator points to the first/last item in the cache;
<a href="#isEmpty">isEmpty</a>(), which returns TRUE if the cache is empty; and <a href="#count">count</a>(),
which returns the number of items in the cache.
<p> Note that atFirst() and atLast() refer to the iterator's arbitrary
ordering, not to the cache's internal least recently used list.
<p> <p>See also <a href="qintcache.html">QIntCache</a>, <a href="collection.html">Collection Classes</a>, and <a href="tools.html">Non-GUI Classes</a>.
<hr><h2>Member Function Documentation</h2>
<h3 class=fn><a name="QIntCacheIterator"></a>QIntCacheIterator::QIntCacheIterator ( const <a href="qintcache.html">QIntCache</a><type> & cache )
</h3>
<p> Constructs an iterator for <em>cache</em>. The current iterator item is
set to point to the first item in the <em>cache</em> (or rather, the
first item is defined to be the item at which this constructor
sets the iterator to point).
<h3 class=fn><a name="QIntCacheIterator-2"></a>QIntCacheIterator::QIntCacheIterator ( const <a href="qintcacheiterator.html">QIntCacheIterator</a><type> & ci )
</h3>
<p> Constructs an iterator for the same cache as <em>ci</em>. The new
iterator starts at the same item as ci.<a href="#current">current</a>(), but moves
independently from there on.
<h3 class=fn>bool <a name="atFirst"></a>QIntCacheIterator::atFirst () const
</h3>
<p> Returns TRUE if the iterator points to the first item in the
cache; otherwise returns FALSE. Note that this refers to the
iterator's arbitrary ordering, not to the cache's internal least
recently used list.
<p> <p>See also <a href="#toFirst">toFirst</a>() and <a href="#atLast">atLast</a>().
<h3 class=fn>bool <a name="atLast"></a>QIntCacheIterator::atLast () const
</h3>
<p> Returns TRUE if the iterator points to the last item in the cache;
otherwise returns FALSE. Note that this refers to the iterator's
arbitrary ordering, not to the cache's internal least recently
used list.
<p> <p>See also <a href="#toLast">toLast</a>() and <a href="#atFirst">atFirst</a>().
<h3 class=fn>uint <a name="count"></a>QIntCacheIterator::count () const
</h3>
<p> Returns the number of items in the cache on which this iterator
operates.
<p> <p>See also <a href="#isEmpty">isEmpty</a>().
<h3 class=fn>type * <a name="current"></a>QIntCacheIterator::current () const
</h3>
<p> Returns a pointer to the current iterator item.
<h3 class=fn>long <a name="currentKey"></a>QIntCacheIterator::currentKey () const
</h3>
<p> Returns the key for the current iterator item.
<h3 class=fn>bool <a name="isEmpty"></a>QIntCacheIterator::isEmpty () const
</h3>
<p> Returns TRUE if the cache is empty; otherwise returns FALSE.
<p> <p>See also <a href="#count">count</a>().
<h3 class=fn><a name="operator-type-*"></a>QIntCacheIterator::operator type * () const
</h3>
<p> Cast operator. Returns a pointer to the current iterator item.
Same as <a href="#current">current</a>().
<h3 class=fn>type * <a name="operator()"></a>QIntCacheIterator::operator() ()
</h3>
<p> Makes the succeeding item current and returns the original current
item.
<p> If the current iterator item was the last item in the cache or if
it was 0, 0 is returned.
<h3 class=fn>type * <a name="operator++"></a>QIntCacheIterator::operator++ ()
</h3>
<p> Prefix ++ makes the iterator point to the item just after
<a href="#current">current</a>(), and makes it the new current item for the iterator. If
current() was the last item, <a href="#operator--">operator--</a>() returns 0.
<h3 class=fn>type * <a name="operator+-eq"></a>QIntCacheIterator::operator+= ( uint jump )
</h3>
<p> Returns the item <em>jump</em> positions after the current item, or 0 if
it is beyond the last item. Makes this the current item.
<h3 class=fn>type * <a name="operator--"></a>QIntCacheIterator::operator-- ()
</h3>
<p> Prefix -- makes the iterator point to the item just before
<a href="#current">current</a>(), and makes it the new current item for the iterator. If
current() was the first item, <a href="#operator--">operator--</a>() returns 0.
<h3 class=fn>type * <a name="operator--eq"></a>QIntCacheIterator::operator-= ( uint jump )
</h3>
<p> Returns the item <em>jump</em> positions before the current item, or 0
if it is beyond the first item. Makes this the current item.
<h3 class=fn><a href="qintcacheiterator.html">QIntCacheIterator</a><type> & <a name="operator-eq"></a>QIntCacheIterator::operator= ( const <a href="qintcacheiterator.html">QIntCacheIterator</a><type> & ci )
</h3>
<p> Makes this an iterator for the same cache as <em>ci</em>. The new
iterator starts at the same item as ci.<a href="#current">current</a>(), but moves
independently thereafter.
<h3 class=fn>type * <a name="toFirst"></a>QIntCacheIterator::toFirst ()
</h3>
<p> Sets the iterator to point to the first item in the cache and
returns a pointer to the item.
<p> Sets the iterator to 0, and returns 0, if the cache is empty.
<p> <p>See also <a href="#toLast">toLast</a>() and <a href="#isEmpty">isEmpty</a>().
<h3 class=fn>type * <a name="toLast"></a>QIntCacheIterator::toLast ()
</h3>
<p> Sets the iterator to point to the last item in the cache and
returns a pointer to the item.
<p> Sets the iterator to 0, and returns 0, if the cache is empty.
<p> <p>See also <a href="#toFirst">toFirst</a>() and <a href="#isEmpty">isEmpty</a>().
<!-- eof -->
<hr><p>
This file is part of the <a href="index.html">Qt toolkit</a>.
Copyright © 1995-2007
<a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
<table width=100% cellspacing=0 border=0><tr>
<td>Copyright © 2007
<a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
<td align=right><div align=right>Qt 3.3.8</div>
</table></div></address></body>
</html>
|
