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<a class="el" href="namespaceXapian.html">Xapian</a>::<a class="el" href="classXapian_1_1PostingIterator.html">PostingIterator</a></div>
<h1>Xapian::PostingIterator Class Reference</h1><!-- doxytag: class="Xapian::PostingIterator" -->An iterator pointing to items in a list of postings.
<a href="#_details">More...</a>
<p>
<a href="classXapian_1_1PostingIterator-members.html">List of all members.</a><table border="0" cellpadding="0" cellspacing="0">
<tr><td></td></tr>
<tr><td colspan="2"><br><h2>Public Types</h2></td></tr>
<tr><td colspan="2"><div class="groupHeader"></div></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef std::input_iterator_tag </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1PostingIterator.html#9636fabaaf2aafe53360f9aa1761df63">iterator_category</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Allow use as an STL iterator. <a href="#9636fabaaf2aafe53360f9aa1761df63"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef <a class="el" href="namespaceXapian.html#d8d873ad5830cff0b4bbd89d7da45d15">Xapian::docid</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1PostingIterator.html#60981a31a4ba5671366aa809627b76d9">value_type</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Allow use as an STL iterator. <a href="#60981a31a4ba5671366aa809627b76d9"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef <a class="el" href="namespaceXapian.html#c0b722c47eee1eeef923379778e3ae5e">Xapian::doccount_diff</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1PostingIterator.html#faa90b392dff540feee4e0d9d92d8f91">difference_type</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Allow use as an STL iterator. <a href="#faa90b392dff540feee4e0d9d92d8f91"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef <a class="el" href="namespaceXapian.html#d8d873ad5830cff0b4bbd89d7da45d15">Xapian::docid</a> * </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1PostingIterator.html#59828da586c32ab68945bcef939866ab">pointer</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Allow use as an STL iterator. <a href="#59828da586c32ab68945bcef939866ab"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">typedef <a class="el" href="namespaceXapian.html#d8d873ad5830cff0b4bbd89d7da45d15">Xapian::docid</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1PostingIterator.html#81a3c3008c086650de2bac5ed8288e36">reference</a></td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Allow use as an STL iterator. <a href="#81a3c3008c086650de2bac5ed8288e36"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1PostingIterator.html#476215e10caf32f1ca8a8eea3d8fd062">PostingIterator</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Default constructor - for declaring an uninitialised iterator. <a href="#476215e10caf32f1ca8a8eea3d8fd062"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1PostingIterator.html#c2df684770f57d9937368ad5b0eeac73">~PostingIterator</a> ()</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Destructor. <a href="#c2df684770f57d9937368ad5b0eeac73"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1PostingIterator.html#4263f51239426840b71fb401d56fd0b9">PostingIterator</a> (const <a class="el" href="classXapian_1_1PostingIterator.html">PostingIterator</a> &other)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Copying is allowed. <a href="#4263f51239426840b71fb401d56fd0b9"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1PostingIterator.html#b93aec222d741b9813e837ad79415683">operator=</a> (const <a class="el" href="classXapian_1_1PostingIterator.html">PostingIterator</a> &other)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Assignment is allowed. <a href="#b93aec222d741b9813e837ad79415683"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="4065fc68667c02e8a30637217433e26b"></a><!-- doxytag: member="Xapian::PostingIterator::operator++" ref="4065fc68667c02e8a30637217433e26b" args="()" -->
<a class="el" href="classXapian_1_1PostingIterator.html">PostingIterator</a> & </td><td class="memItemRight" valign="bottom"><b>operator++</b> ()</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="anchor" name="73ba3f7118718c9f6a1b59fd8527ba75"></a><!-- doxytag: member="Xapian::PostingIterator::operator++" ref="73ba3f7118718c9f6a1b59fd8527ba75" args="(int)" -->
DocIDWrapper </td><td class="memItemRight" valign="bottom"><b>operator++</b> (int)</td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1PostingIterator.html#48899d4bdf2c12e00ad433cf43d0c5ea">skip_to</a> (<a class="el" href="namespaceXapian.html#d8d873ad5830cff0b4bbd89d7da45d15">Xapian::docid</a> did)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Skip the iterator to document did, or the first document after did if did isn't in the list of documents being iterated. <a href="#48899d4bdf2c12e00ad433cf43d0c5ea"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="namespaceXapian.html#d8d873ad5830cff0b4bbd89d7da45d15">Xapian::docid</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1PostingIterator.html#f365a9bd2886df40b6aabe27b7ad4d22">operator *</a> () const</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the document id at the current position in the postlist. <a href="#f365a9bd2886df40b6aabe27b7ad4d22"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="namespaceXapian.html#6c1c4bfd0b540caccbb5179976ebf792">Xapian::doclength</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1PostingIterator.html#023b59d65dc154f406c3d342f714c6fa">get_doclength</a> () const</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the length of the document at the current position in the postlist. <a href="#023b59d65dc154f406c3d342f714c6fa"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="namespaceXapian.html#3261017447607738e49eae6a2a4f5eec">Xapian::termcount</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1PostingIterator.html#755361182d062a92ecf17cbfd6f80c9b">get_wdf</a> () const</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Get the within document frequency of the document at the current position in the postlist. <a href="#755361182d062a92ecf17cbfd6f80c9b"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classXapian_1_1PositionIterator.html">PositionIterator</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1PostingIterator.html#45d20eef15c1a383ad3a3e3f4d9378bf">positionlist_begin</a> () const</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return <a class="el" href="classXapian_1_1PositionIterator.html" title="An iterator pointing to items in a list of positions.">PositionIterator</a> pointing to start of positionlist for current document. <a href="#45d20eef15c1a383ad3a3e3f4d9378bf"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top"><a class="el" href="classXapian_1_1PositionIterator.html">PositionIterator</a> </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1PostingIterator.html#1359d7861e6d3179af51bbc4df28f4bd">positionlist_end</a> () const</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return <a class="el" href="classXapian_1_1PositionIterator.html" title="An iterator pointing to items in a list of positions.">PositionIterator</a> pointing to end of positionlist for current document. <a href="#1359d7861e6d3179af51bbc4df28f4bd"></a><br></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">std::string </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1PostingIterator.html#7c111a44142304bf6c287c3c9c1315cc">get_description</a> () const</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Return a string describing this object. <a href="#7c111a44142304bf6c287c3c9c1315cc"></a><br></td></tr>
<tr><td colspan="2"><br><h2>Friends</h2></td></tr>
<tr><td class="memItemLeft" nowrap align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classXapian_1_1PostingIterator.html#789bdd29e5f87b9f32768b8b4e85b66b">operator==</a> (const <a class="el" href="classXapian_1_1PostingIterator.html">PostingIterator</a> &a, const <a class="el" href="classXapian_1_1PostingIterator.html">PostingIterator</a> &b)</td></tr>
<tr><td class="mdescLeft"> </td><td class="mdescRight">Test equality of two PostingIterators. <a href="#789bdd29e5f87b9f32768b8b4e85b66b"></a><br></td></tr>
</table>
<hr><a name="_details"></a><h2>Detailed Description</h2>
An iterator pointing to items in a list of postings.
<p>
<hr><h2>Member Typedef Documentation</h2>
<a class="anchor" name="9636fabaaf2aafe53360f9aa1761df63"></a><!-- doxytag: member="Xapian::PostingIterator::iterator_category" ref="9636fabaaf2aafe53360f9aa1761df63" args="" -->
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<td class="memname">typedef std::input_iterator_tag <a class="el" href="classXapian_1_1PostingIterator.html#9636fabaaf2aafe53360f9aa1761df63">Xapian::PostingIterator::iterator_category</a> </td>
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<p>
Allow use as an STL iterator.
<p>
</div>
</div><p>
<a class="anchor" name="60981a31a4ba5671366aa809627b76d9"></a><!-- doxytag: member="Xapian::PostingIterator::value_type" ref="60981a31a4ba5671366aa809627b76d9" args="" -->
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<td class="memname">typedef <a class="el" href="namespaceXapian.html#d8d873ad5830cff0b4bbd89d7da45d15">Xapian::docid</a> <a class="el" href="classXapian_1_1PostingIterator.html#60981a31a4ba5671366aa809627b76d9">Xapian::PostingIterator::value_type</a> </td>
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<p>
Allow use as an STL iterator.
<p>
</div>
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<a class="anchor" name="faa90b392dff540feee4e0d9d92d8f91"></a><!-- doxytag: member="Xapian::PostingIterator::difference_type" ref="faa90b392dff540feee4e0d9d92d8f91" args="" -->
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<td class="memname">typedef <a class="el" href="namespaceXapian.html#c0b722c47eee1eeef923379778e3ae5e">Xapian::doccount_diff</a> <a class="el" href="classXapian_1_1PostingIterator.html#faa90b392dff540feee4e0d9d92d8f91">Xapian::PostingIterator::difference_type</a> </td>
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<p>
Allow use as an STL iterator.
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</div>
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<a class="anchor" name="59828da586c32ab68945bcef939866ab"></a><!-- doxytag: member="Xapian::PostingIterator::pointer" ref="59828da586c32ab68945bcef939866ab" args="" -->
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<td class="memname">typedef <a class="el" href="namespaceXapian.html#d8d873ad5830cff0b4bbd89d7da45d15">Xapian::docid</a>* <a class="el" href="classXapian_1_1PostingIterator.html#59828da586c32ab68945bcef939866ab">Xapian::PostingIterator::pointer</a> </td>
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<p>
Allow use as an STL iterator.
<p>
</div>
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<a class="anchor" name="81a3c3008c086650de2bac5ed8288e36"></a><!-- doxytag: member="Xapian::PostingIterator::reference" ref="81a3c3008c086650de2bac5ed8288e36" args="" -->
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<td class="memname">typedef <a class="el" href="namespaceXapian.html#d8d873ad5830cff0b4bbd89d7da45d15">Xapian::docid</a>& <a class="el" href="classXapian_1_1PostingIterator.html#81a3c3008c086650de2bac5ed8288e36">Xapian::PostingIterator::reference</a> </td>
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<p>
Allow use as an STL iterator.
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<hr><h2>Constructor & Destructor Documentation</h2>
<a class="anchor" name="476215e10caf32f1ca8a8eea3d8fd062"></a><!-- doxytag: member="Xapian::PostingIterator::PostingIterator" ref="476215e10caf32f1ca8a8eea3d8fd062" args="()" -->
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<td class="memname">Xapian::PostingIterator::PostingIterator </td>
<td>(</td>
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<td width="100%"></td>
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Default constructor - for declaring an uninitialised iterator.
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<a class="anchor" name="c2df684770f57d9937368ad5b0eeac73"></a><!-- doxytag: member="Xapian::PostingIterator::~PostingIterator" ref="c2df684770f57d9937368ad5b0eeac73" args="()" -->
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<td class="memname">Xapian::PostingIterator::~PostingIterator </td>
<td>(</td>
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Destructor.
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<a class="anchor" name="4263f51239426840b71fb401d56fd0b9"></a><!-- doxytag: member="Xapian::PostingIterator::PostingIterator" ref="4263f51239426840b71fb401d56fd0b9" args="(const PostingIterator &other)" -->
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<td class="memname">Xapian::PostingIterator::PostingIterator </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classXapian_1_1PostingIterator.html">PostingIterator</a> & </td>
<td class="paramname"> <em>other</em> </td>
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Copying is allowed.
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The internals are reference counted, so copying is also cheap.
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<hr><h2>Member Function Documentation</h2>
<a class="anchor" name="b93aec222d741b9813e837ad79415683"></a><!-- doxytag: member="Xapian::PostingIterator::operator=" ref="b93aec222d741b9813e837ad79415683" args="(const PostingIterator &other)" -->
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<td class="memname">void Xapian::PostingIterator::operator= </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classXapian_1_1PostingIterator.html">PostingIterator</a> & </td>
<td class="paramname"> <em>other</em> </td>
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Assignment is allowed.
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The internals are reference counted, so assignment is also cheap.
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<a class="anchor" name="48899d4bdf2c12e00ad433cf43d0c5ea"></a><!-- doxytag: member="Xapian::PostingIterator::skip_to" ref="48899d4bdf2c12e00ad433cf43d0c5ea" args="(Xapian::docid did)" -->
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<td class="memname">void Xapian::PostingIterator::skip_to </td>
<td>(</td>
<td class="paramtype"><a class="el" href="namespaceXapian.html#d8d873ad5830cff0b4bbd89d7da45d15">Xapian::docid</a> </td>
<td class="paramname"> <em>did</em> </td>
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Skip the iterator to document did, or the first document after did if did isn't in the list of documents being iterated.
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<a class="anchor" name="f365a9bd2886df40b6aabe27b7ad4d22"></a><!-- doxytag: member="Xapian::PostingIterator::operator *" ref="f365a9bd2886df40b6aabe27b7ad4d22" args="() const" -->
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<td class="memname"><a class="el" href="namespaceXapian.html#d8d873ad5830cff0b4bbd89d7da45d15">Xapian::docid</a> Xapian::PostingIterator::operator * </td>
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Get the document id at the current position in the postlist.
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<a class="anchor" name="023b59d65dc154f406c3d342f714c6fa"></a><!-- doxytag: member="Xapian::PostingIterator::get_doclength" ref="023b59d65dc154f406c3d342f714c6fa" args="() const" -->
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<td class="memname"><a class="el" href="namespaceXapian.html#6c1c4bfd0b540caccbb5179976ebf792">Xapian::doclength</a> Xapian::PostingIterator::get_doclength </td>
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<p>
Get the length of the document at the current position in the postlist.
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This information may be stored in the postlist, in which case this lookup should be extremely fast (indeed, not require further disk access). If the information is not present in the postlist, it will be retrieved from the database, at a greater performance cost.
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<a class="anchor" name="755361182d062a92ecf17cbfd6f80c9b"></a><!-- doxytag: member="Xapian::PostingIterator::get_wdf" ref="755361182d062a92ecf17cbfd6f80c9b" args="() const" -->
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<td class="memname"><a class="el" href="namespaceXapian.html#3261017447607738e49eae6a2a4f5eec">Xapian::termcount</a> Xapian::PostingIterator::get_wdf </td>
<td>(</td>
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Get the within document frequency of the document at the current position in the postlist.
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<a class="anchor" name="45d20eef15c1a383ad3a3e3f4d9378bf"></a><!-- doxytag: member="Xapian::PostingIterator::positionlist_begin" ref="45d20eef15c1a383ad3a3e3f4d9378bf" args="() const" -->
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<td class="memname"><a class="el" href="classXapian_1_1PositionIterator.html">PositionIterator</a> Xapian::PostingIterator::positionlist_begin </td>
<td>(</td>
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<td width="100%"> const</td>
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Return <a class="el" href="classXapian_1_1PositionIterator.html" title="An iterator pointing to items in a list of positions.">PositionIterator</a> pointing to start of positionlist for current document.
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<a class="anchor" name="1359d7861e6d3179af51bbc4df28f4bd"></a><!-- doxytag: member="Xapian::PostingIterator::positionlist_end" ref="1359d7861e6d3179af51bbc4df28f4bd" args="() const" -->
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<td class="memname"><a class="el" href="classXapian_1_1PositionIterator.html">PositionIterator</a> Xapian::PostingIterator::positionlist_end </td>
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Return <a class="el" href="classXapian_1_1PositionIterator.html" title="An iterator pointing to items in a list of positions.">PositionIterator</a> pointing to end of positionlist for current document.
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<a class="anchor" name="7c111a44142304bf6c287c3c9c1315cc"></a><!-- doxytag: member="Xapian::PostingIterator::get_description" ref="7c111a44142304bf6c287c3c9c1315cc" args="() const" -->
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<td class="memname">std::string Xapian::PostingIterator::get_description </td>
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Return a string describing this object.
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<hr><h2>Friends And Related Function Documentation</h2>
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<td class="memname">bool operator== </td>
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<td>)</td>
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Test equality of two PostingIterators.
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<hr>The documentation for this class was generated from the following file:<ul>
<li>xapian/<a class="el" href="postingiterator_8h.html">postingiterator.h</a></ul>
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<address><small>
Documentation for Xapian (version 1.0.21).<br>
Generated on 18 Jun 2010 by
<a href="http://www.doxygen.org/">Doxygen 1.5.2</a>.
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