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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
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<td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>TQAsciiCacheIterator Class Reference</h1>
<p>The TQAsciiCacheIterator class provides an iterator for TQAsciiCache collections.
<a href="#details">More...</a>
<p><tt>#include <<a href="tqasciicache-h.html">tqasciicache.h</a>></tt>
<p><a href="tqasciicacheiterator-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li class=fn><a href="#TQAsciiCacheIterator"><b>TQAsciiCacheIterator</b></a> ( const TQAsciiCache<type> & cache )</li>
<li class=fn><a href="#TQAsciiCacheIterator-2"><b>TQAsciiCacheIterator</b></a> ( const TQAsciiCacheIterator<type> & ci )</li>
<li class=fn>TQAsciiCacheIterator<type> & <a href="#operator-eq"><b>operator=</b></a> ( const TQAsciiCacheIterator<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>const char * <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 TQAsciiCacheIterator class provides an iterator for <a href="tqasciicache.html">TQAsciiCache</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 TQAsciiCache. TQAsciiCache updates all iterators
that refer an item when that item is removed.
<p> TQAsciiCacheIterator 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. It also provides <a href="#atFirst">atFirst</a>() and
<a href="#atLast">atLast</a>(), which return TRUE if the iterator points to the first or
last item in the cache respectively. The <a href="#isEmpty">isEmpty</a>() function
returns TRUE if the cache is empty; and <a href="#count">count</a>() 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="tqasciicache.html">TQAsciiCache</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="TQAsciiCacheIterator"></a>TQAsciiCacheIterator::TQAsciiCacheIterator ( const <a href="tqasciicache.html">TQAsciiCache</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>.
<h3 class=fn><a name="TQAsciiCacheIterator-2"></a>TQAsciiCacheIterator::TQAsciiCacheIterator ( const <a href="tqasciicacheiterator.html">TQAsciiCacheIterator</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>TQAsciiCacheIterator::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>TQAsciiCacheIterator::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>TQAsciiCacheIterator::count () const
</h3>
<p> Returns the number of items in the cache over which this iterator
operates.
<p> <p>See also <a href="#isEmpty">isEmpty</a>().
<h3 class=fn>type * <a name="current"></a>TQAsciiCacheIterator::current () const
</h3>
<p> Returns a pointer to the current iterator item.
<h3 class=fn>const char * <a name="currentKey"></a>TQAsciiCacheIterator::currentKey () const
</h3>
<p> Returns the key for the current iterator item.
<h3 class=fn>bool <a name="isEmpty"></a>TQAsciiCacheIterator::isEmpty () const
</h3>
<p> Returns TRUE if the cache is empty, i.e. <a href="#count">count</a>() == 0; otherwise
returns FALSE.
<p> <p>See also <a href="#count">count</a>().
<h3 class=fn><a name="operator-type-*"></a>TQAsciiCacheIterator::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>TQAsciiCacheIterator::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>TQAsciiCacheIterator::operator++ ()
</h3>
<p> Prefix ++ makes the iterator point to the item just after
<a href="#current">current</a>(), and makes that 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>TQAsciiCacheIterator::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>TQAsciiCacheIterator::operator-- ()
</h3>
<p> Prefix -- makes the iterator point to the item just before
<a href="#current">current</a>(), and makes that 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>TQAsciiCacheIterator::operator-= ( uint jump )
</h3>
<p> Returns the item <em>jump</em> positions before the current item, or 0
if it is before the first item. Makes this the current item.
<h3 class=fn><a href="tqasciicacheiterator.html">TQAsciiCacheIterator</a><type> & <a name="operator-eq"></a>TQAsciiCacheIterator::operator= ( const <a href="tqasciicacheiterator.html">TQAsciiCacheIterator</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>TQAsciiCacheIterator::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>TQAsciiCacheIterator::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="#isEmpty">isEmpty</a>().
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