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Breadcrumbs go here --> <li><a href="modules.html">Modules</a></li> <li>Qt3SupportLight</li> <li>Q3IntCacheIterator</li> </ul> </div> <div class="toolbuttons toolblock"> <ul> <li id="smallA" class="t_button">A</li> <li id="medA" class="t_button active">A</li> <li id="bigA" class="t_button">A</li> <li id="print" class="t_button"><a href="javascript:this.print();"> <span>Print</span></a></li> </ul> </div> </div> <div class="content mainContent"> <div class="toc"> <h3><a name="toc">Contents</a></h3> <ul> <li class="level1"><a href="#public-functions">Public Functions</a></li> <li class="level1"><a href="#details">Detailed Description</a></li> </ul> </div> <h1 class="title">Q3IntCacheIterator Class Reference</h1> <!-- $$$Q3IntCacheIterator-brief --> <p>The Q3IntCacheIterator class provides an iterator for <a href="q3intcache.html">Q3IntCache</a> collections. <a href="#details">More...</a></p> <!-- @@@Q3IntCacheIterator --> <pre class="cpp"> <span class="preprocessor">#include <Q3IntCacheIterator></span></pre><p><b>This class is part of the Qt 3 support library.</b> It is provided to keep old source code working. We strongly advise against using it in new code. See <a href="porting4.html">Porting to Qt 4</a> for more information.</p> <ul> <li><a href="q3intcacheiterator-members.html">List of all members, including inherited members</a></li> </ul> <a name="public-functions"></a> <h2>Public Functions</h2> <table class="alignedsummary"> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="q3intcacheiterator.html#Q3IntCacheIterator">Q3IntCacheIterator</a></b> ( const Q3IntCache<type> & <i>cache</i> )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="q3intcacheiterator.html#Q3IntCacheIterator-2">Q3IntCacheIterator</a></b> ( const Q3IntCacheIterator<type> & <i>ci</i> )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="q3intcacheiterator.html#atFirst">atFirst</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="q3intcacheiterator.html#atLast">atLast</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> uint </td><td class="memItemRight bottomAlign"><b><a href="q3intcacheiterator.html#count">count</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> type * </td><td class="memItemRight bottomAlign"><b><a href="q3intcacheiterator.html#current">current</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> long </td><td class="memItemRight bottomAlign"><b><a href="q3intcacheiterator.html#currentKey">currentKey</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> bool </td><td class="memItemRight bottomAlign"><b><a href="q3intcacheiterator.html#isEmpty">isEmpty</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> type * </td><td class="memItemRight bottomAlign"><b><a href="q3intcacheiterator.html#toFirst">toFirst</a></b> ()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> type * </td><td class="memItemRight bottomAlign"><b><a href="q3intcacheiterator.html#toLast">toLast</a></b> ()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> </td><td class="memItemRight bottomAlign"><b><a href="q3intcacheiterator.html#operator-type--2a">operator type *</a></b> () const</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> type * </td><td class="memItemRight bottomAlign"><b><a href="q3intcacheiterator.html#operator-28-29">operator()</a></b> ()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> type * </td><td class="memItemRight bottomAlign"><b><a href="q3intcacheiterator.html#operator-2b-2b">operator++</a></b> ()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> type * </td><td class="memItemRight bottomAlign"><b><a href="q3intcacheiterator.html#operator-2b-eq">operator+=</a></b> ( uint <i>jump</i> )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> type * </td><td class="memItemRight bottomAlign"><b><a href="q3intcacheiterator.html#operator--">operator--</a></b> ()</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> type * </td><td class="memItemRight bottomAlign"><b><a href="q3intcacheiterator.html#operator--eq">operator-=</a></b> ( uint <i>jump</i> )</td></tr> <tr><td class="memItemLeft rightAlign topAlign"> Q3IntCacheIterator<type> & </td><td class="memItemRight bottomAlign"><b><a href="q3intcacheiterator.html#operator-eq">operator=</a></b> ( const Q3IntCacheIterator<type> & <i>ci</i> )</td></tr> </table> <a name="details"></a> <!-- $$$Q3IntCacheIterator-description --> <div class="descr"> <h2>Detailed Description</h2> <p>The Q3IntCacheIterator class provides an iterator for <a href="q3intcache.html">Q3IntCache</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> <p>Multiple iterators are completely independent, even when they operate on the same <a href="q3intcache.html">Q3IntCache</a>. <a href="q3intcache.html">Q3IntCache</a> updates all iterators that refer an item when that item is removed.</p> <p>Q3IntCacheIterator provides an operator++(), and an operator+=() to traverse the cache; <a href="q3intcacheiterator.html#current">current</a>() and <a href="q3intcacheiterator.html#currentKey">currentKey</a>() to access the current cache item and its key; <a href="q3intcacheiterator.html#atFirst">atFirst</a>() <a href="q3intcacheiterator.html#atLast">atLast</a>(), which return TRUE if the iterator points to the first/last item in the cache; <a href="q3intcacheiterator.html#isEmpty">isEmpty</a>(), which returns TRUE if the cache is empty; and <a href="q3intcacheiterator.html#count">count</a>(), which returns the number of items in the cache.</p> <p>Note that <a href="q3intcacheiterator.html#atFirst">atFirst</a>() and <a href="q3intcacheiterator.html#atLast">atLast</a>() refer to the iterator's arbitrary ordering, not to the cache's internal least recently used list.</p> </div> <p><b>See also </b><a href="q3intcache.html">Q3IntCache</a>.</p> <!-- @@@Q3IntCacheIterator --> <div class="func"> <h2>Member Function Documentation</h2> <!-- $$$Q3IntCacheIterator[overload1]$$$Q3IntCacheIteratorconstQ3IntCache<type>& --> <h3 class="fn"><a name="Q3IntCacheIterator"></a>Q3IntCacheIterator::<span class="name">Q3IntCacheIterator</span> ( const <span class="type"><a href="q3intcache.html">Q3IntCache</a></span><<span class="type">type</span>> & <i>cache</i> )</h3> <p>Constructs an iterator for <i>cache</i>. The current iterator item is set to point to the first item in the <i>cache</i> (or rather, the first item is defined to be the item at which this constructor sets the iterator to point).</p> <!-- @@@Q3IntCacheIterator --> <!-- $$$Q3IntCacheIterator$$$Q3IntCacheIteratorconstQ3IntCacheIterator<type>& --> <h3 class="fn"><a name="Q3IntCacheIterator-2"></a>Q3IntCacheIterator::<span class="name">Q3IntCacheIterator</span> ( const <span class="type">Q3IntCacheIterator</span><<span class="type">type</span>> & <i>ci</i> )</h3> <p>Constructs an iterator for the same cache as <i>ci</i>. The new iterator starts at the same item as ci.<a href="q3intcacheiterator.html#current">current</a>(), but moves independently from there on.</p> <!-- @@@Q3IntCacheIterator --> <!-- $$$atFirst[overload1]$$$atFirst --> <h3 class="fn"><a name="atFirst"></a><span class="type">bool</span> Q3IntCacheIterator::<span class="name">atFirst</span> () 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><b>See also </b><a href="q3intcacheiterator.html#toFirst">toFirst</a>() and <a href="q3intcacheiterator.html#atLast">atLast</a>().</p> <!-- @@@atFirst --> <!-- $$$atLast[overload1]$$$atLast --> <h3 class="fn"><a name="atLast"></a><span class="type">bool</span> Q3IntCacheIterator::<span class="name">atLast</span> () 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><b>See also </b><a href="q3intcacheiterator.html#toLast">toLast</a>() and <a href="q3intcacheiterator.html#atFirst">atFirst</a>().</p> <!-- @@@atLast --> <!-- $$$count[overload1]$$$count --> <h3 class="fn"><a name="count"></a><span class="type"><a href="qtglobal.html#uint-typedef">uint</a></span> Q3IntCacheIterator::<span class="name">count</span> () const</h3> <p>Returns the number of items in the cache on which this iterator operates.</p> <p><b>See also </b><a href="q3intcacheiterator.html#isEmpty">isEmpty</a>().</p> <!-- @@@count --> <!-- $$$current[overload1]$$$current --> <h3 class="fn"><a name="current"></a><span class="type">type</span> * Q3IntCacheIterator::<span class="name">current</span> () const</h3> <p>Returns a pointer to the current iterator item.</p> <!-- @@@current --> <!-- $$$currentKey[overload1]$$$currentKey --> <h3 class="fn"><a name="currentKey"></a><span class="type">long</span> Q3IntCacheIterator::<span class="name">currentKey</span> () const</h3> <p>Returns the key for the current iterator item.</p> <!-- @@@currentKey --> <!-- $$$isEmpty[overload1]$$$isEmpty --> <h3 class="fn"><a name="isEmpty"></a><span class="type">bool</span> Q3IntCacheIterator::<span class="name">isEmpty</span> () const</h3> <p>Returns TRUE if the cache is empty; otherwise returns FALSE.</p> <p><b>See also </b><a href="q3intcacheiterator.html#count">count</a>().</p> <!-- @@@isEmpty --> <!-- $$$toFirst[overload1]$$$toFirst --> <h3 class="fn"><a name="toFirst"></a><span class="type">type</span> * Q3IntCacheIterator::<span class="name">toFirst</span> ()</h3> <p>Sets the iterator to point to the first item in the cache and returns a pointer to the item.</p> <p>Sets the iterator to 0, and returns 0, if the cache is empty.</p> <p><b>See also </b><a href="q3intcacheiterator.html#toLast">toLast</a>() and <a href="q3intcacheiterator.html#isEmpty">isEmpty</a>().</p> <!-- @@@toFirst --> <!-- $$$toLast[overload1]$$$toLast --> <h3 class="fn"><a name="toLast"></a><span class="type">type</span> * Q3IntCacheIterator::<span class="name">toLast</span> ()</h3> <p>Sets the iterator to point to the last item in the cache and returns a pointer to the item.</p> <p>Sets the iterator to 0, and returns 0, if the cache is empty.</p> <p><b>See also </b><a href="q3intcacheiterator.html#toFirst">toFirst</a>() and <a href="q3intcacheiterator.html#isEmpty">isEmpty</a>().</p> <!-- @@@toLast --> <!-- $$$operator type *[overload1]$$$operator type * --> <h3 class="fn"><a name="operator-type--2a"></a>Q3IntCacheIterator::<span class="name">operator type *</span> () const</h3> <p>Cast operator. Returns a pointer to the current iterator item. Same as <a href="q3intcacheiterator.html#current">current</a>().</p> <!-- @@@operator type * --> <!-- $$$operator()[overload1]$$$operator() --> <h3 class="fn"><a name="operator-28-29"></a><span class="type">type</span> * Q3IntCacheIterator::<span class="name">operator()</span> ()</h3> <p>Makes the succeeding item current and returns the original current item.</p> <p>If the current iterator item was the last item in the cache or if it was 0, 0 is returned.</p> <!-- @@@operator() --> <!-- $$$operator++[overload1]$$$operator++ --> <h3 class="fn"><a name="operator-2b-2b"></a><span class="type">type</span> * Q3IntCacheIterator::<span class="name">operator++</span> ()</h3> <p>Prefix ++ makes the iterator point to the item just after <a href="q3intcacheiterator.html#current">current</a>(), and makes it the new current item for the iterator. If <a href="q3intcacheiterator.html#current">current</a>() was the last item, operator--() returns 0.</p> <!-- @@@operator++ --> <!-- $$$operator+=[overload1]$$$operator+=uint --> <h3 class="fn"><a name="operator-2b-eq"></a><span class="type">type</span> * Q3IntCacheIterator::<span class="name">operator+=</span> ( <span class="type"><a href="qtglobal.html#uint-typedef">uint</a></span> <i>jump</i> )</h3> <p>Returns the item <i>jump</i> positions after the current item, or 0 if it is beyond the last item. Makes this the current item.</p> <!-- @@@operator+= --> <!-- $$$operator--[overload1]$$$operator-- --> <h3 class="fn"><a name="operator--"></a><span class="type">type</span> * Q3IntCacheIterator::<span class="name">operator--</span> ()</h3> <p>Prefix -- makes the iterator point to the item just before <a href="q3intcacheiterator.html#current">current</a>(), and makes it the new current item for the iterator. If <a href="q3intcacheiterator.html#current">current</a>() was the first item, operator--() returns 0.</p> <!-- @@@operator-- --> <!-- $$$operator-=[overload1]$$$operator-=uint --> <h3 class="fn"><a name="operator--eq"></a><span class="type">type</span> * Q3IntCacheIterator::<span class="name">operator-=</span> ( <span class="type"><a href="qtglobal.html#uint-typedef">uint</a></span> <i>jump</i> )</h3> <p>Returns the item <i>jump</i> positions before the current item, or 0 if it is beyond the first item. Makes this the current item.</p> <!-- @@@operator-= --> <!-- $$$operator=[overload1]$$$operator=constQ3IntCacheIterator<type>& --> <h3 class="fn"><a name="operator-eq"></a><span class="type">Q3IntCacheIterator</span><<span class="type">type</span>> & Q3IntCacheIterator::<span class="name">operator=</span> ( const <span class="type">Q3IntCacheIterator</span><<span class="type">type</span>> & <i>ci</i> )</h3> <p>Makes this an iterator for the same cache as <i>ci</i>. The new iterator starts at the same item as ci.<a href="q3intcacheiterator.html#current">current</a>(), but moves independently thereafter.</p> <!-- @@@operator= --> </div> </div> </div> </div> <div class="ft"> <span></span> </div> </div> <div class="footer"> <p> <acronym title="Copyright">©</acronym> 2015 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners.</p> <br /> <p> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.</p> <p> Documentation sources may be obtained from <a href="http://www.qt-project.org"> www.qt-project.org</a>.</p> <br /> <p> Qt and respective logos are trademarks of The Qt Company Ltd in Finland and/or other countries worldwide. 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