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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta name="robots" content="noindex,noarchive">
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<h1 align=center>QIntDictIterator Class Reference</h1><br clear="all">
<p>
The QIntDictIterator class provides an iterator for <a href="qintdict.html">QIntDict</a> collections.
<a href="#details">More...</a>
<p>
<code>#include <<a href="qintdict-h.html">qintdict.h</a>></code>
<p>
Inherits <a href="qgdictiterator.html">QGDictIterator</a>.
<p><a href="qintdictiterator-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li><span class="fn"><a href="qintdictiterator.html#a0"><strong>QIntDictIterator</strong></a>(constQIntDict<type>&dict)</span>
<li><span class="fn"><a href="qintdictiterator.html#a1"><strong>~QIntDictIterator</strong></a>()</span>
<li><span class="fn">uint<a href="qintdictiterator.html#a2"><strong>count</strong></a>()const</span>
<li><span class="fn">bool<a href="qintdictiterator.html#a3"><strong>isEmpty</strong></a>()const</span>
<li><span class="fn">type*<a href="qintdictiterator.html#a4"><strong>toFirst</strong></a>()</span>
<li><span class="fn">operator<a href=qintdictiterator.html#b0><strong>type*</strong></a>()const</span>
<li><span class="fn">type*<a href="qintdictiterator.html#a5"><strong>current</strong></a>()const</span>
<li><span class="fn">long<a href="qintdictiterator.html#a6"><strong>currentKey</strong></a>()const</span>
<li><span class="fn">type*<a href="qintdictiterator.html#a7"><strong>operator</strong></a>()</span>
<li><span class="fn">type*<a href="qintdictiterator.html#a8"><strong>operator++</strong></a>()</span>
<li><span class="fn">type*<a href="qintdictiterator.html#a9"><strong>operator+=</strong></a>(uintjump)</span>
</ul>
<hr><h2><a name="details"></a>Detailed Description</h2>
The QIntDictIterator class provides an iterator for <a href="qintdict.html">QIntDict</a> collections.
<p>
QIntDictIterator is implemented as both a template and a macro class.
Define a template instance QIntDictIterator<X> to create a
dictionary iterator that operates on QIntDict<X> (dictionary of X*).
<p>Example:
<pre> #include <qintdict.h>
#include <stdio.h>
void main()
{
<a href="qintdict.html">QIntDict</a><char> dict; // maps long ==> char*
dict.<a href="qintdict.html#a7">insert</a>( 33, "France" );
dict.<a href="qintdict.html#a7">insert</a>( 7, "Russia" );
dict.<a href="qintdict.html#a7">insert</a>( 49, "Norway" );
<a href="qintdictiterator.html">QIntDictIterator</a><char> it( dict ); // iterator for dict
while ( it.<a href="qintdictiterator.html#a5">current</a>() ) {
printf( "%d -> %s\n", it.<a href="qintdictiterator.html#a6">currentKey</a>(), it.<a href="qintdictiterator.html#a5">current</a>() );
++it;
}
}
</pre>
<p>Program output:
<pre> 7 -> Russia
49 -> Norway
33 -> France
</pre>
<p>Note that the traversal order is arbitrary, you are not guaranteed the
order above.
<p>A QIntDictIterator can also be instantiated through a macro expansion,
but this is necessary only for compilers that do not support templates.
See the <a href="collection.html">collection classes documentation</a>
for a general discussion on template-based versus macro-based collections.
<p>Multiple iterators may independently traverse the same dictionary.
A QIntDict knows about all iterators that are operating on the dictionary.
When an item is removed from the dictionary, QIntDict update all
iterators that are referring the removed item to point to the next item
in the traversing order.
<p>See also: <a href="qintdict.html">QIntDict</a> and <a href="collection.html">Collection Classes</a>
<hr><h2>Member Function Documentation</h2>
<h3 class="fn"><a name="a0"></a>QIntDictIterator::QIntDictIterator(const<a href="qintdict.html">QIntDict</a><type>&dict)</h3>
<p>Constructs an iterator for <em>dict.</em> The current iterator item is
set to point on the first item in the <em>dict.</em>
<h3 class="fn"><a name="a1"></a>QIntDictIterator::~QIntDictIterator()</h3>
<p>Destroys the iterator.
<h3 class="fn"><a name="b0"></a>QIntDictIterator::operatortype*()const</h3>
<p>Cast operator. Returns a pointer to the current iterator item.
Same as <a href="qintdictiterator.html#a5">current</a>().
<h3 class="fn">uint<a name="a2"></a>QIntDictIterator::count()const</h3>
<p>Returns the number of items in the dictionary this iterator operates on.
<p>See also: <a href="qintdictiterator.html#a3">isEmpty</a>().
<h3 class="fn">type*<a name="a5"></a>QIntDictIterator::current()const</h3>
<p>Returns a pointer to the current iterator item.
<h3 class="fn">long<a name="a6"></a>QIntDictIterator::currentKey()const</h3>
<p>Returns the key for the current iterator item.
<h3 class="fn">bool<a name="a3"></a>QIntDictIterator::isEmpty()const</h3>
<p>Returns TRUE if the dictionary is empty, i.e. <a href="qintdictiterator.html#a2">count</a>() == 0. Returns FALSE
otherwise.
<p>See also: <a href="qintdictiterator.html#a2">count</a>().
<h3 class="fn">type*<a name="a7"></a>QIntDictIterator::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 dictionary or if it
was null, null is returned.
<h3 class="fn">type*<a name="a8"></a>QIntDictIterator::operator++()</h3>
<p>Prefix ++ makes the succeeding item current and returns the new current
item.
<p>If the current iterator item was the last item in the dictionary or if it
was null, null is returned.
<h3 class="fn">type*<a name="a9"></a>QIntDictIterator::operator+=(uintjump)</h3>
<p>Sets the current item to the item <em>jump</em> positions after the current item,
and returns a pointer to that item.
<p>If that item is beyond the last item or if the dictionary is empty,
it sets the current item to null and returns null.
<h3 class="fn">type*<a name="a4"></a>QIntDictIterator::toFirst()</h3>
<p>Sets the current iterator item to point to the first item in the
dictionary and returns a pointer to the item.
If the dictionary is empty it sets the current item to null and
returns null.
<hr><p>
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It was generated from the following files:
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<li>qintdict.h: 1998/08/27
<li>qintdict.doc: 1998/03/17
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