<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.15"/> <meta name="viewport" content="width=device-width, initial-scale=1"/> <title>libstdc++: __gnu_parallel::_LoserTreeTraits< _Tp > Struct Template Reference</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="navtree.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="resize.js"></script> <script type="text/javascript" src="navtreedata.js"></script> <script type="text/javascript" src="navtree.js"></script> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(document).ready(initResizable); /* @license-end */</script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td id="projectalign" style="padding-left: 0.5em;"> <div id="projectname">libstdc++ </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.15 --> </div><!-- top --> <div id="side-nav" class="ui-resizable side-nav-resizable"> <div id="nav-tree"> <div id="nav-tree-contents"> <div id="nav-sync" class="sync"></div> </div> </div> <div id="splitbar" style="-moz-user-select:none;" class="ui-resizable-handle"> </div> </div> <script type="text/javascript"> /* @license magnet:?xt=urn:btih:cf05388f2679ee054f2beb29a391d25f4e673ac3&dn=gpl-2.0.txt GPL-v2 */ $(document).ready(function(){initNavTree('a09520.html','');}); /* @license-end */ </script> <div id="doc-content"> <div class="header"> <div class="summary"> <a href="#pub-static-attribs">Static Public Attributes</a> | <a href="a09517.html">List of all members</a> </div> <div class="headertitle"> <div class="title">__gnu_parallel::_LoserTreeTraits< _Tp > Struct Template Reference</div> </div> </div><!--header--> <div class="contents"> <table class="memberdecls"> <tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-static-attribs"></a> Static Public Attributes</h2></td></tr> <tr class="memitem:ae896521258e61f2158af412742d7276b"><td class="memItemLeft" align="right" valign="top">static const bool </td><td class="memItemRight" valign="bottom"><a class="el" href="a09520.html#ae896521258e61f2158af412742d7276b">_M_use_pointer</a></td></tr> <tr class="separator:ae896521258e61f2158af412742d7276b"><td class="memSeparator" colspan="2"> </td></tr> </table> <a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2> <div class="textblock"><h3>template<typename _Tp><br /> struct __gnu_parallel::_LoserTreeTraits< _Tp ></h3> <p>Traits for determining whether the loser tree should use pointers or copies. </p> <p>The field "_M_use_pointer" is used to determine whether to use pointers in he loser trees or whether to copy the values into the loser tree.</p> <p>The default behavior is to use pointers if the data type is 4 times as big as the pointer to it.</p> <p>Specialize for your data type to customize the behavior.</p> <p>Example:</p> <p>template<> struct _LoserTreeTraits<int> { static const bool _M_use_pointer = false; };</p> <p>template<> struct _LoserTreeTraits<heavyweight_type> { static const bool _M_use_pointer = true; };</p> <dl class="params"><dt>Parameters</dt><dd> <table class="params"> <tr><td class="paramname">_Tp</td><td>type to give the loser tree traits for. </td></tr> </table> </dd> </dl> <p class="definition">Definition at line <a class="el" href="a00914_source.html#l00731">731</a> of file <a class="el" href="a00914_source.html">multiway_merge.h</a>.</p> </div><h2 class="groupheader">Member Data Documentation</h2> <a id="ae896521258e61f2158af412742d7276b"></a> <h2 class="memtitle"><span class="permalink"><a href="#ae896521258e61f2158af412742d7276b">◆ </a></span>_M_use_pointer</h2> <div class="memitem"> <div class="memproto"> <div class="memtemplate"> template<typename _Tp > </div> <table class="mlabels"> <tr> <td class="mlabels-left"> <table class="memname"> <tr> <td class="memname">const bool <a class="el" href="a09520.html">__gnu_parallel::_LoserTreeTraits</a>< _Tp >::_M_use_pointer</td> </tr> </table> </td> <td class="mlabels-right"> <span class="mlabels"><span class="mlabel">static</span></span> </td> </tr> </table> </div><div class="memdoc"> <p>True iff to use pointers instead of values in loser trees. </p> <p>The default behavior is to use pointers if the data type is four times as big as the pointer to it. </p> <p class="definition">Definition at line <a class="el" href="a00914_source.html#l00739">739</a> of file <a class="el" href="a00914_source.html">multiway_merge.h</a>.</p> </div> </div> <hr/>The documentation for this struct was generated from the following file:<ul> <li><a class="el" href="a00914_source.html">multiway_merge.h</a></li> </ul> </div><!-- contents --> </div><!-- doc-content --> <!-- start footer part --> <div id="nav-path" class="navpath"><!-- id is needed for treeview function! --> <ul> <li class="navelem"><a class="el" href="a01572.html">__gnu_parallel</a></li><li class="navelem"><a class="el" href="a09520.html">_LoserTreeTraits</a></li> <li class="footer">Generated by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.15 </li> </ul> </div> </body> </html>