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| <li class="navelem"><b>iceberg</b></li><li class="navelem"><a class="el" href="classiceberg_1_1RoaringPositionBitmap.html">RoaringPositionBitmap</a></li> </ul> |
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| <a href="#nested-classes">Classes</a> | |
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| <a href="classiceberg_1_1RoaringPositionBitmap-members.html">List of all members</a> </div> |
| <div class="headertitle"><div class="title">iceberg::RoaringPositionBitmap Class Reference</div></div> |
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| |
| <p>A bitmap that supports positive 64-bit positions, optimized for cases where most positions fit in 32 bits. |
| <a href="classiceberg_1_1RoaringPositionBitmap.html#details">More...</a></p> |
| |
| <p><code>#include <<a class="el" href="roaring__position__bitmap_8h_source.html">roaring_position_bitmap.h</a>></code></p> |
| <table class="memberdecls"> |
| <tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="nested-classes" name="nested-classes"></a> |
| Classes</h2></td></tr> |
| <tr class="memitem:"><td class="memItemLeft" align="right" valign="top">struct  </td><td class="memItemRight" valign="bottom"><a class="el" href="structiceberg_1_1RoaringPositionBitmap_1_1Impl.html">Impl</a></td></tr> |
| <tr class="separator:"><td class="memSeparator" colspan="2"> </td></tr> |
| </table><table class="memberdecls"> |
| <tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-methods" name="pub-methods"></a> |
| Public Member Functions</h2></td></tr> |
| <tr class="memitem:a5416b9dc9d43495aa2310316ba4dfbfe" id="r_a5416b9dc9d43495aa2310316ba4dfbfe"><td class="memItemLeft" align="right" valign="top"><a id="a5416b9dc9d43495aa2310316ba4dfbfe" name="a5416b9dc9d43495aa2310316ba4dfbfe"></a> |
|  </td><td class="memItemRight" valign="bottom"><b>RoaringPositionBitmap</b> (<a class="el" href="classiceberg_1_1RoaringPositionBitmap.html">RoaringPositionBitmap</a> &&other) noexcept</td></tr> |
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| <tr class="memitem:a662b2f3ef56952a5e57a4e9c2c3ccff6" id="r_a662b2f3ef56952a5e57a4e9c2c3ccff6"><td class="memItemLeft" align="right" valign="top"><a id="a662b2f3ef56952a5e57a4e9c2c3ccff6" name="a662b2f3ef56952a5e57a4e9c2c3ccff6"></a> |
| <a class="el" href="classiceberg_1_1RoaringPositionBitmap.html">RoaringPositionBitmap</a> & </td><td class="memItemRight" valign="bottom"><b>operator=</b> (<a class="el" href="classiceberg_1_1RoaringPositionBitmap.html">RoaringPositionBitmap</a> &&other) noexcept</td></tr> |
| <tr class="separator:a662b2f3ef56952a5e57a4e9c2c3ccff6"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:aa5552b6f7ad81aed46bbf6559f67f6df" id="r_aa5552b6f7ad81aed46bbf6559f67f6df"><td class="memItemLeft" align="right" valign="top"><a id="aa5552b6f7ad81aed46bbf6559f67f6df" name="aa5552b6f7ad81aed46bbf6559f67f6df"></a> |
|  </td><td class="memItemRight" valign="bottom"><b>RoaringPositionBitmap</b> (const <a class="el" href="classiceberg_1_1RoaringPositionBitmap.html">RoaringPositionBitmap</a> &other)</td></tr> |
| <tr class="separator:aa5552b6f7ad81aed46bbf6559f67f6df"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:a334670484321ea4ede0ea98f8692dd3a" id="r_a334670484321ea4ede0ea98f8692dd3a"><td class="memItemLeft" align="right" valign="top"><a id="a334670484321ea4ede0ea98f8692dd3a" name="a334670484321ea4ede0ea98f8692dd3a"></a> |
| <a class="el" href="classiceberg_1_1RoaringPositionBitmap.html">RoaringPositionBitmap</a> & </td><td class="memItemRight" valign="bottom"><b>operator=</b> (const <a class="el" href="classiceberg_1_1RoaringPositionBitmap.html">RoaringPositionBitmap</a> &other)</td></tr> |
| <tr class="separator:a334670484321ea4ede0ea98f8692dd3a"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:a1e70876825b49c748e7398ea67797ad2" id="r_a1e70876825b49c748e7398ea67797ad2"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classiceberg_1_1RoaringPositionBitmap.html#a1e70876825b49c748e7398ea67797ad2">Add</a> (int64_t pos)</td></tr> |
| <tr class="memdesc:a1e70876825b49c748e7398ea67797ad2"><td class="mdescLeft"> </td><td class="mdescRight">Sets a position in the bitmap. <br /></td></tr> |
| <tr class="separator:a1e70876825b49c748e7398ea67797ad2"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:a72c60f02115ce8c0f6b0af77c924c788" id="r_a72c60f02115ce8c0f6b0af77c924c788"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classiceberg_1_1RoaringPositionBitmap.html#a72c60f02115ce8c0f6b0af77c924c788">AddRange</a> (int64_t pos_start, int64_t pos_end)</td></tr> |
| <tr class="memdesc:a72c60f02115ce8c0f6b0af77c924c788"><td class="mdescLeft"> </td><td class="mdescRight">Sets a range of positions [pos_start, pos_end). <br /></td></tr> |
| <tr class="separator:a72c60f02115ce8c0f6b0af77c924c788"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:a879bd5fa35237a9c7a02ebe6f9894aae" id="r_a879bd5fa35237a9c7a02ebe6f9894aae"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classiceberg_1_1RoaringPositionBitmap.html#a879bd5fa35237a9c7a02ebe6f9894aae">Contains</a> (int64_t pos) const</td></tr> |
| <tr class="memdesc:a879bd5fa35237a9c7a02ebe6f9894aae"><td class="mdescLeft"> </td><td class="mdescRight">Checks if a position is set in the bitmap. <br /></td></tr> |
| <tr class="separator:a879bd5fa35237a9c7a02ebe6f9894aae"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:ac2aaa7d0510ee162826bd6098b46d121" id="r_ac2aaa7d0510ee162826bd6098b46d121"><td class="memItemLeft" align="right" valign="top"><a id="ac2aaa7d0510ee162826bd6098b46d121" name="ac2aaa7d0510ee162826bd6098b46d121"></a> |
| bool </td><td class="memItemRight" valign="bottom"><b>IsEmpty</b> () const</td></tr> |
| <tr class="memdesc:ac2aaa7d0510ee162826bd6098b46d121"><td class="mdescLeft"> </td><td class="mdescRight">Returns true if the bitmap has no positions set. <br /></td></tr> |
| <tr class="separator:ac2aaa7d0510ee162826bd6098b46d121"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:a603608e39b0124033af3c7a4378a69f4" id="r_a603608e39b0124033af3c7a4378a69f4"><td class="memItemLeft" align="right" valign="top"><a id="a603608e39b0124033af3c7a4378a69f4" name="a603608e39b0124033af3c7a4378a69f4"></a> |
| size_t </td><td class="memItemRight" valign="bottom"><b>Cardinality</b> () const</td></tr> |
| <tr class="memdesc:a603608e39b0124033af3c7a4378a69f4"><td class="mdescLeft"> </td><td class="mdescRight">Returns the number of set positions in the bitmap. <br /></td></tr> |
| <tr class="separator:a603608e39b0124033af3c7a4378a69f4"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:a6809de3aa2a29cdaf3101e5f527d0b69" id="r_a6809de3aa2a29cdaf3101e5f527d0b69"><td class="memItemLeft" align="right" valign="top"><a id="a6809de3aa2a29cdaf3101e5f527d0b69" name="a6809de3aa2a29cdaf3101e5f527d0b69"></a> |
| void </td><td class="memItemRight" valign="bottom"><b>Or</b> (const <a class="el" href="classiceberg_1_1RoaringPositionBitmap.html">RoaringPositionBitmap</a> &other)</td></tr> |
| <tr class="memdesc:a6809de3aa2a29cdaf3101e5f527d0b69"><td class="mdescLeft"> </td><td class="mdescRight">Merges all positions from the other bitmap into this one (in-place union). <br /></td></tr> |
| <tr class="separator:a6809de3aa2a29cdaf3101e5f527d0b69"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:af1c4887626f845e63b1f7a63abe8a212" id="r_af1c4887626f845e63b1f7a63abe8a212"><td class="memItemLeft" align="right" valign="top">bool </td><td class="memItemRight" valign="bottom"><a class="el" href="classiceberg_1_1RoaringPositionBitmap.html#af1c4887626f845e63b1f7a63abe8a212">Optimize</a> ()</td></tr> |
| <tr class="memdesc:af1c4887626f845e63b1f7a63abe8a212"><td class="mdescLeft"> </td><td class="mdescRight">Optimizes the bitmap by applying run-length encoding to containers where it is more space efficient than array or bitset representations. <br /></td></tr> |
| <tr class="separator:af1c4887626f845e63b1f7a63abe8a212"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:a18779d584375bed659ba2c38a1ee2bb4" id="r_a18779d584375bed659ba2c38a1ee2bb4"><td class="memItemLeft" align="right" valign="top"><a id="a18779d584375bed659ba2c38a1ee2bb4" name="a18779d584375bed659ba2c38a1ee2bb4"></a> |
| void </td><td class="memItemRight" valign="bottom"><b>ForEach</b> (const std::function< void(int64_t)> &fn) const</td></tr> |
| <tr class="memdesc:a18779d584375bed659ba2c38a1ee2bb4"><td class="mdescLeft"> </td><td class="mdescRight">Iterates over all set positions in ascending order. <br /></td></tr> |
| <tr class="separator:a18779d584375bed659ba2c38a1ee2bb4"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:affcf76ee2ea560cfeb18741c0cadb9d6" id="r_affcf76ee2ea560cfeb18741c0cadb9d6"><td class="memItemLeft" align="right" valign="top"><a id="affcf76ee2ea560cfeb18741c0cadb9d6" name="affcf76ee2ea560cfeb18741c0cadb9d6"></a> |
| size_t </td><td class="memItemRight" valign="bottom"><b>SerializedSizeInBytes</b> () const</td></tr> |
| <tr class="memdesc:affcf76ee2ea560cfeb18741c0cadb9d6"><td class="mdescLeft"> </td><td class="mdescRight">Returns the serialized size in bytes. <br /></td></tr> |
| <tr class="separator:affcf76ee2ea560cfeb18741c0cadb9d6"><td class="memSeparator" colspan="2"> </td></tr> |
| <tr class="memitem:a5cbc934ea12bb261fbd5a689ed5d4509" id="r_a5cbc934ea12bb261fbd5a689ed5d4509"><td class="memItemLeft" align="right" valign="top"><a id="a5cbc934ea12bb261fbd5a689ed5d4509" name="a5cbc934ea12bb261fbd5a689ed5d4509"></a> |
| Result< std::string > </td><td class="memItemRight" valign="bottom"><b>Serialize</b> () const</td></tr> |
| <tr class="memdesc:a5cbc934ea12bb261fbd5a689ed5d4509"><td class="mdescLeft"> </td><td class="mdescRight">Serializes using the portable format (little-endian). <br /></td></tr> |
| <tr class="separator:a5cbc934ea12bb261fbd5a689ed5d4509"><td class="memSeparator" colspan="2"> </td></tr> |
| </table><table class="memberdecls"> |
| <tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-static-methods" name="pub-static-methods"></a> |
| Static Public Member Functions</h2></td></tr> |
| <tr class="memitem:a37cc9ce0eefa12dbeabb77edc6dd680b" id="r_a37cc9ce0eefa12dbeabb77edc6dd680b"><td class="memItemLeft" align="right" valign="top"><a id="a37cc9ce0eefa12dbeabb77edc6dd680b" name="a37cc9ce0eefa12dbeabb77edc6dd680b"></a> |
| static Result< <a class="el" href="classiceberg_1_1RoaringPositionBitmap.html">RoaringPositionBitmap</a> > </td><td class="memItemRight" valign="bottom"><b>Deserialize</b> (std::string_view bytes)</td></tr> |
| <tr class="memdesc:a37cc9ce0eefa12dbeabb77edc6dd680b"><td class="mdescLeft"> </td><td class="mdescRight">Deserializes a bitmap from bytes. <br /></td></tr> |
| <tr class="separator:a37cc9ce0eefa12dbeabb77edc6dd680b"><td class="memSeparator" colspan="2"> </td></tr> |
| </table><table class="memberdecls"> |
| <tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-static-attribs" name="pub-static-attribs"></a> |
| Static Public Attributes</h2></td></tr> |
| <tr class="memitem:a96daf8d6091c3da17dd542ab0cb50b16" id="r_a96daf8d6091c3da17dd542ab0cb50b16"><td class="memItemLeft" align="right" valign="top"><a id="a96daf8d6091c3da17dd542ab0cb50b16" name="a96daf8d6091c3da17dd542ab0cb50b16"></a> |
| static constexpr int64_t </td><td class="memItemRight" valign="bottom"><b>kMaxPosition</b> = 0x7FFFFFFE80000000LL</td></tr> |
| <tr class="memdesc:a96daf8d6091c3da17dd542ab0cb50b16"><td class="mdescLeft"> </td><td class="mdescRight">Maximum supported position (aligned with the Java implementation). <br /></td></tr> |
| <tr class="separator:a96daf8d6091c3da17dd542ab0cb50b16"><td class="memSeparator" colspan="2"> </td></tr> |
| </table> |
| <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> |
| <div class="textblock"><p>A bitmap that supports positive 64-bit positions, optimized for cases where most positions fit in 32 bits. </p> |
| <p>Incoming 64-bit positions are divided into a 32-bit "key" using the most significant 4 bytes and a 32-bit position using the least significant 4 bytes. For each key, a 32-bit Roaring bitmap is maintained to store positions for that key. </p><dl class="section note"><dt>Note</dt><dd>This class is used to represent deletion vectors. The Puffin puffin reader/write handle adding the additional required framing (length prefix, magic, magic bytes, CRC-32) for <code>deletion-vector-v1</code> persistence. </dd></dl> |
| </div><h2 class="groupheader">Member Function Documentation</h2> |
| <a id="a1e70876825b49c748e7398ea67797ad2" name="a1e70876825b49c748e7398ea67797ad2"></a> |
| <h2 class="memtitle"><span class="permalink"><a href="#a1e70876825b49c748e7398ea67797ad2">◆ </a></span>Add()</h2> |
| |
| <div class="memitem"> |
| <div class="memproto"> |
| <table class="memname"> |
| <tr> |
| <td class="memname">void iceberg::RoaringPositionBitmap::Add </td> |
| <td>(</td> |
| <td class="paramtype">int64_t </td> |
| <td class="paramname"><em>pos</em></td><td>)</td> |
| <td></td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>Sets a position in the bitmap. </p> |
| <dl class="params"><dt>Parameters</dt><dd> |
| <table class="params"> |
| <tr><td class="paramname">pos</td><td>the position (must be >= 0 and <= kMaxPosition) </td></tr> |
| </table> |
| </dd> |
| </dl> |
| <dl class="section note"><dt>Note</dt><dd>Invalid positions are silently ignored </dd></dl> |
| |
| </div> |
| </div> |
| <a id="a72c60f02115ce8c0f6b0af77c924c788" name="a72c60f02115ce8c0f6b0af77c924c788"></a> |
| <h2 class="memtitle"><span class="permalink"><a href="#a72c60f02115ce8c0f6b0af77c924c788">◆ </a></span>AddRange()</h2> |
| |
| <div class="memitem"> |
| <div class="memproto"> |
| <table class="memname"> |
| <tr> |
| <td class="memname">void iceberg::RoaringPositionBitmap::AddRange </td> |
| <td>(</td> |
| <td class="paramtype">int64_t </td> |
| <td class="paramname"><em>pos_start</em>, </td> |
| </tr> |
| <tr> |
| <td class="paramkey"></td> |
| <td></td> |
| <td class="paramtype">int64_t </td> |
| <td class="paramname"><em>pos_end</em> </td> |
| </tr> |
| <tr> |
| <td></td> |
| <td>)</td> |
| <td></td><td></td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>Sets a range of positions [pos_start, pos_end). </p> |
| <dl class="params"><dt>Parameters</dt><dd> |
| <table class="params"> |
| <tr><td class="paramname">pos_start</td><td>the start of the range (inclusive), clamped to 0 </td></tr> |
| <tr><td class="paramname">pos_end</td><td>the end of the range (exclusive), clamped to kMaxPosition + 1 </td></tr> |
| </table> |
| </dd> |
| </dl> |
| <dl class="section note"><dt>Note</dt><dd>If pos_start > pos_end, the call is silently ignored. If pos_start == pos_end, this method does nothing. Positions outside [0, kMaxPosition] are silently ignored. </dd></dl> |
| |
| </div> |
| </div> |
| <a id="a879bd5fa35237a9c7a02ebe6f9894aae" name="a879bd5fa35237a9c7a02ebe6f9894aae"></a> |
| <h2 class="memtitle"><span class="permalink"><a href="#a879bd5fa35237a9c7a02ebe6f9894aae">◆ </a></span>Contains()</h2> |
| |
| <div class="memitem"> |
| <div class="memproto"> |
| <table class="memname"> |
| <tr> |
| <td class="memname">bool iceberg::RoaringPositionBitmap::Contains </td> |
| <td>(</td> |
| <td class="paramtype">int64_t </td> |
| <td class="paramname"><em>pos</em></td><td>)</td> |
| <td> const</td> |
| </tr> |
| </table> |
| </div><div class="memdoc"> |
| |
| <p>Checks if a position is set in the bitmap. </p> |
| <dl class="params"><dt>Parameters</dt><dd> |
| <table class="params"> |
| <tr><td class="paramname">pos</td><td>the position to check </td></tr> |
| </table> |
| </dd> |
| </dl> |
| <dl class="section return"><dt>Returns</dt><dd>true if the position is set, false otherwise (including invalid positions) </dd></dl> |
| |
| </div> |
| </div> |
| <a id="af1c4887626f845e63b1f7a63abe8a212" name="af1c4887626f845e63b1f7a63abe8a212"></a> |
| <h2 class="memtitle"><span class="permalink"><a href="#af1c4887626f845e63b1f7a63abe8a212">◆ </a></span>Optimize()</h2> |
| |
| <div class="memitem"> |
| <div class="memproto"> |
| <table class="memname"> |
| <tr> |
| <td class="memname">bool iceberg::RoaringPositionBitmap::Optimize </td> |
| <td>(</td> |
| <td class="paramname"></td><td>)</td> |
| <td></td> |
| </tr> |
| </table> |
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| |
| <p>Optimizes the bitmap by applying run-length encoding to containers where it is more space efficient than array or bitset representations. </p> |
| <dl class="section return"><dt>Returns</dt><dd>true if any container was changed </dd></dl> |
| |
| </div> |
| </div> |
| <hr/>The documentation for this class was generated from the following files:<ul> |
| <li>iceberg/deletes/<a class="el" href="roaring__position__bitmap_8h_source.html">roaring_position_bitmap.h</a></li> |
| <li>iceberg/deletes/<b>roaring_position_bitmap.cc</b></li> |
| </ul> |
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