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| 32 | <td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>QMapConstIterator Class Reference</h1>
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| 33 |
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| 34 | <p>The QMapConstIterator class provides an iterator for QMap.
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| 35 | <a href="#details">More...</a>
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| 36 | <p><tt>#include <<a href="qmap-h.html">qmap.h</a>></tt>
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| 37 | <p><a href="qmapconstiterator-members.html">List of all member functions.</a>
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| 38 | <h2>Public Members</h2>
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| 39 | <ul>
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| 40 | <li class=fn>typedef std::bidirectional_iterator_tag <a href="#iterator_category"><b>iterator_category</b></a></li>
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| 41 | <li class=fn>typedef T <a href="#value_type"><b>value_type</b></a></li>
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| 42 | <li class=fn>typedef const T * <a href="#pointer"><b>pointer</b></a></li>
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| 43 | <li class=fn>typedef const T & <a href="#reference"><b>reference</b></a></li>
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| 44 | <li class=fn><a href="#QMapConstIterator"><b>QMapConstIterator</b></a> ()</li>
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| 45 | <li class=fn><a href="#QMapConstIterator-2"><b>QMapConstIterator</b></a> ( QMapNode<K, T> * p )</li>
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| 46 | <li class=fn><a href="#QMapConstIterator-3"><b>QMapConstIterator</b></a> ( const QMapConstIterator<K, T> & it )</li>
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| 47 | <li class=fn><a href="#QMapConstIterator-4"><b>QMapConstIterator</b></a> ( const QMapIterator<K, T> & it )</li>
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| 48 | <li class=fn>bool <a href="#operator-eq-eq"><b>operator==</b></a> ( const QMapConstIterator<K, T> & it ) const</li>
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| 49 | <li class=fn>bool <a href="#operator!-eq"><b>operator!=</b></a> ( const QMapConstIterator<K, T> & it ) const</li>
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| 50 | <li class=fn>const T & <a href="#operator*"><b>operator*</b></a> () const</li>
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| 51 | <li class=fn>const K & <a href="#key"><b>key</b></a> () const</li>
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| 52 | <li class=fn>const T & <a href="#data"><b>data</b></a> () const</li>
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| 53 | <li class=fn>QMapConstIterator<K, T> & <a href="#operator++"><b>operator++</b></a> ()</li>
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| 54 | <li class=fn>QMapConstIterator<K, T> <a href="#operator++-2"><b>operator++</b></a> ( int )</li>
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| 55 | <li class=fn>QMapConstIterator<K, T> & <a href="#operator--"><b>operator--</b></a> ()</li>
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| 56 | <li class=fn>QMapConstIterator<K, T> <a href="#operator---2"><b>operator--</b></a> ( int )</li>
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| 57 | </ul>
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| 58 | <hr><a name="details"></a><h2>Detailed Description</h2>
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| 59 |
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| 60 |
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| 61 | The QMapConstIterator class provides an iterator for <a href="qmap.html">QMap</a>.
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| 62 | <p>
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| 63 |
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| 64 | <p> In contrast to <a href="qmapiterator.html">QMapIterator</a>, this class is used to iterate over a
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| 65 | const map. It does not allow you to modify the values of the map
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| 66 | because this would break the const semantics.
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| 67 | <p> For more information on QMap iterators, see <a href="qmapiterator.html">QMapIterator</a> and
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| 68 | the <a href="qmap.html#qmap-eg">QMap example</a>.
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| 69 | <p> <p>See also <a href="qmap.html">QMap</a>, <a href="qmapiterator.html">QMapIterator</a>, <a href="qtl.html">Qt Template Library Classes</a>, and <a href="tools.html">Non-GUI Classes</a>.
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| 70 |
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| 71 | <hr><h2>Member Type Documentation</h2>
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| 72 | <h3 class=fn><a name="iterator_category"></a>QMapConstIterator::iterator_category</h3>
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| 73 | The type of iterator category, <tt>std::bidirectional_iterator_tag</tt>.
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| 74 | <h3 class=fn><a name="pointer"></a>QMapConstIterator::pointer</h3>
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| 75 | Const pointer to value_type.
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| 76 | <h3 class=fn><a name="reference"></a>QMapConstIterator::reference</h3>
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| 77 | Const reference to value_type.
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| 78 | <h3 class=fn><a name="value_type"></a>QMapConstIterator::value_type</h3>
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| 79 | The type of const value.
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| 80 | <hr><h2>Member Function Documentation</h2>
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| 81 | <h3 class=fn><a name="QMapConstIterator"></a>QMapConstIterator::QMapConstIterator ()
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| 82 | </h3>
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| 83 |
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| 84 | <p> Constructs an uninitialized iterator.
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| 85 |
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| 86 | <h3 class=fn><a name="QMapConstIterator-2"></a>QMapConstIterator::QMapConstIterator ( QMapNode<K, T> * p )
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| 87 | </h3>
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| 88 |
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| 89 | <p> Constructs an iterator starting at node <em>p</em>.
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| 90 |
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| 91 | <h3 class=fn><a name="QMapConstIterator-3"></a>QMapConstIterator::QMapConstIterator ( const <a href="qmapconstiterator.html">QMapConstIterator</a><K, T> & it )
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| 92 | </h3>
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| 93 |
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| 94 | <p> Constructs a copy of the iterator, <em>it</em>.
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| 95 |
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| 96 | <h3 class=fn><a name="QMapConstIterator-4"></a>QMapConstIterator::QMapConstIterator ( const <a href="qmapiterator.html">QMapIterator</a><K, T> & it )
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| 97 | </h3>
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| 98 |
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| 99 | <p> Constructs a copy of the iterator, <em>it</em>.
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| 100 |
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| 101 | <h3 class=fn>const T & <a name="data"></a>QMapConstIterator::data () const
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| 102 | </h3>
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| 103 |
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| 104 | <p> Returns a const reference to the current item's data.
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| 105 |
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| 106 | <h3 class=fn>const K & <a name="key"></a>QMapConstIterator::key () const
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| 107 | </h3>
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| 108 |
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| 109 | <p> Returns a const reference to the current item's key.
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| 110 |
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| 111 | <h3 class=fn>bool <a name="operator!-eq"></a>QMapConstIterator::operator!= ( const <a href="qmapconstiterator.html">QMapConstIterator</a><K, T> & it ) const
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| 112 | </h3>
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| 113 |
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| 114 | <p> Compares the iterator to the <em>it</em> iterator and returns FALSE if
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| 115 | they point to the same item; otherwise returns TRUE.
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| 116 |
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| 117 | <h3 class=fn>const T & <a name="operator*"></a>QMapConstIterator::operator* () const
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| 118 | </h3>
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| 119 |
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| 120 | <p> Dereference operator. Returns a const reference to the current
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| 121 | item's data. The same as <a href="#data">data</a>().
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| 122 |
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| 123 | <h3 class=fn><a href="qmapconstiterator.html">QMapConstIterator</a><K, T> & <a name="operator++"></a>QMapConstIterator::operator++ ()
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| 124 | </h3>
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| 125 |
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| 126 | <p> Prefix ++ makes the succeeding item current and returns an
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| 127 | iterator pointing to the new current item. The iterator cannot
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| 128 | check whether it reached the end of the map. Incrementing the
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| 129 | iterator returned by end() causes undefined results.
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| 130 |
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| 131 | <h3 class=fn><a href="qmapconstiterator.html">QMapConstIterator</a><K, T> <a name="operator++-2"></a>QMapConstIterator::operator++ ( int )
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| 132 | </h3>
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| 133 |
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| 134 | <p> This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
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| 135 | <p> Postfix ++ makes the succeeding item current and returns an
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| 136 | iterator pointing to the new current item. The iterator cannot
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| 137 | check whether it reached the end of the map. Incrementing the
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| 138 | iterator returned by end() causes undefined results.
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| 139 |
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| 140 | <h3 class=fn><a href="qmapconstiterator.html">QMapConstIterator</a><K, T> & <a name="operator--"></a>QMapConstIterator::operator-- ()
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| 141 | </h3>
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| 142 |
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| 143 | <p> Prefix -- makes the previous item current and returns an iterator
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| 144 | pointing to the new current item. The iterator cannot check
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| 145 | whether it reached the beginning of the map. Decrementing the
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| 146 | iterator returned by begin() causes undefined results.
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| 147 |
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| 148 | <h3 class=fn><a href="qmapconstiterator.html">QMapConstIterator</a><K, T> <a name="operator---2"></a>QMapConstIterator::operator-- ( int )
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| 149 | </h3>
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| 150 |
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| 151 | <p> This is an overloaded member function, provided for convenience. It behaves essentially like the above function.
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| 152 | <p> Postfix -- makes the previous item current and returns an iterator
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| 153 | pointing to the new current item. The iterator cannot check
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| 154 | whether it reached the beginning of the map. Decrementing the
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| 155 | iterator returned by begin() causes undefined results.
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| 156 |
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| 157 | <h3 class=fn>bool <a name="operator-eq-eq"></a>QMapConstIterator::operator== ( const <a href="qmapconstiterator.html">QMapConstIterator</a><K, T> & it ) const
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| 158 | </h3>
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| 159 |
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| 160 | <p> Compares the iterator to the <em>it</em> iterator and returns TRUE if
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| 161 | they point to the same item; otherwise returns FALSE.
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| 162 |
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| 163 | <!-- eof -->
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| 164 | <hr><p>
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| 165 | This file is part of the <a href="index.html">Qt toolkit</a>.
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| 166 | Copyright © 1995-2007
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| 167 | <a href="http://www.trolltech.com/">Trolltech</a>. All Rights Reserved.<p><address><hr><div align=center>
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| 168 | <table width=100% cellspacing=0 border=0><tr>
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| 169 | <td>Copyright © 2007
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| 170 | <a href="troll.html">Trolltech</a><td align=center><a href="trademarks.html">Trademarks</a>
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| 171 | <td align=right><div align=right>Qt 3.3.8</div>
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| 172 | </table></div></address></body>
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| 173 | </html>
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