<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://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 1.8.5"/> <title>libstdc++: type_traits Source File</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="navtree.js"></script> <script type="text/javascript"> $(document).ready(initResizable); $(window).load(resizeHeight); </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 style="padding-left: 0.5em;"> <div id="projectname">libstdc++ </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.5 --> </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"> $(document).ready(function(){initNavTree('a01610_source.html','');}); </script> <div id="doc-content"> <div class="header"> <div class="headertitle"> <div class="title">tr2/type_traits</div> </div> </div><!--header--> <div class="contents"> <a href="a01610.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span> <span class="comment">// TR2 <type_traits> -*- C++ -*-</span></div> <div class="line"><a name="l00002"></a><span class="lineno"> 2</span> </div> <div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment">// Copyright (C) 2011-2013 Free Software Foundation, Inc.</span></div> <div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">//</span></div> <div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">// This file is part of the GNU ISO C++ Library. This library is free</span></div> <div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">// software; you can redistribute it and/or modify it under the</span></div> <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// terms of the GNU General Public License as published by the</span></div> <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// Free Software Foundation; either version 3, or (at your option)</span></div> <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// any later version.</span></div> <div class="line"><a name="l00010"></a><span class="lineno"> 10</span> </div> <div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">// This library is distributed in the hope that it will be useful,</span></div> <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// but WITHOUT ANY WARRANTY; without even the implied warranty of</span></div> <div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the</span></div> <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// GNU General Public License for more details.</span></div> <div class="line"><a name="l00015"></a><span class="lineno"> 15</span> </div> <div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">// Under Section 7 of GPL version 3, you are granted additional</span></div> <div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">// permissions described in the GCC Runtime Library Exception, version</span></div> <div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment">// 3.1, as published by the Free Software Foundation.</span></div> <div class="line"><a name="l00019"></a><span class="lineno"> 19</span> </div> <div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment">// You should have received a copy of the GNU General Public License and</span></div> <div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment">// a copy of the GCC Runtime Library Exception along with this program;</span></div> <div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see</span></div> <div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment">// <http://www.gnu.org/licenses/>.</span></div> <div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment"></span></div> <div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">/** @file tr2/type_traits</span></div> <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment"> * This is a TR2 C++ Library header.</span></div> <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment"> */</span></div> <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> </div> <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#ifndef _GLIBCXX_TR2_TYPE_TRAITS</span></div> <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="preprocessor"></span><span class="preprocessor">#define _GLIBCXX_TR2_TYPE_TRAITS 1</span></div> <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="preprocessor"></span></div> <div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="preprocessor">#pragma GCC system_header</span></div> <div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="preprocessor"></span><span class="preprocessor">#include <<a class="code" href="a01610.html">type_traits</a>></span></div> <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="preprocessor">#include <<a class="code" href="a01070.html">bits/c++config.h</a>></span></div> <div class="line"><a name="l00035"></a><span class="lineno"> 35</span> </div> <div class="line"><a name="l00036"></a><span class="lineno"> 36</span> <span class="keyword">namespace </span>std _GLIBCXX_VISIBILITY(default)</div> <div class="line"><a name="l00037"></a><span class="lineno"> 37</span> {</div> <div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="keyword">namespace </span>tr2</div> <div class="line"><a name="l00039"></a><span class="lineno"> 39</span> {</div> <div class="line"><a name="l00040"></a><span class="lineno"> 40</span> _GLIBCXX_BEGIN_NAMESPACE_VERSION</div> <div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"></span></div> <div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment"> /**</span></div> <div class="line"><a name="l00043"></a><span class="lineno"> 43</span> <span class="comment"> * @addtogroup metaprogramming</span></div> <div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="comment"> * @{</span></div> <div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="comment"> */</span></div> <div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="comment"></span></div> <div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> /**</span></div> <div class="line"><a name="l00048"></a><span class="lineno"> 48</span> <span class="comment"> * See N2965: Type traits and base classes</span></div> <div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"> * by Michael Spertus</span></div> <div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment"> */</span></div> <div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="comment"></span></div> <div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment"> /**</span></div> <div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> * Simple typelist. Compile-time list of types.</span></div> <div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="comment"> */</span></div> <div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keyword">template</span><<span class="keyword">typename</span>... _Elements></div> <div class="line"><a name="l00056"></a><span class="lineno"><a class="line" href="a00985.html"> 56</a></span>  <span class="keyword">struct </span><a class="code" href="a00985.html">__reflection_typelist</a>;</div> <div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment"></span></div> <div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"> /// Specialization for an empty typelist.</span></div> <div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"></span> <span class="keyword">template</span><></div> <div class="line"><a name="l00060"></a><span class="lineno"><a class="line" href="a00987.html"> 60</a></span>  <span class="keyword">struct </span><a class="code" href="a00985.html">__reflection_typelist</a><></div> <div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  {</div> <div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  <span class="keyword">typedef</span> <a class="code" href="a00458.html">std::true_type</a> <a class="code" href="a00458.html">empty</a>;</div> <div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  };</div> <div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment"></span></div> <div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment"> /// Partial specialization.</span></div> <div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment"></span> <span class="keyword">template</span><<span class="keyword">typename</span> _First, <span class="keyword">typename</span>... _Rest></div> <div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="a00986.html"> 67</a></span>  <span class="keyword">struct </span><a class="code" href="a00985.html">__reflection_typelist</a><_First, _Rest...></div> <div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  {</div> <div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keyword">typedef</span> <a class="code" href="a00458.html">std::false_type</a> <a class="code" href="a00458.html">empty</a>;</div> <div class="line"><a name="l00070"></a><span class="lineno"> 70</span> </div> <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  <span class="keyword">struct </span>first</div> <div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  {</div> <div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <span class="keyword">typedef</span> _First type;</div> <div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  };</div> <div class="line"><a name="l00075"></a><span class="lineno"> 75</span> </div> <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <span class="keyword">struct </span>rest</div> <div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  {</div> <div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="keyword">typedef</span> <a class="code" href="a00985.html">__reflection_typelist</a><_Rest...> type;</div> <div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  };</div> <div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  };</div> <div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="comment"></span></div> <div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment"> /// Sequence abstraction metafunctions for manipulating a typelist.</span></div> <div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment"></span></div> <div class="line"><a name="l00084"></a><span class="lineno"> 84</span> </div> <div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="comment"></span></div> <div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="comment"> /// Enumerate all the base classes of a class. Form of a typelist.</span></div> <div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="comment"></span> <span class="keyword">template</span><<span class="keyword">typename</span> _Tp></div> <div class="line"><a name="l00088"></a><span class="lineno"><a class="line" href="a00988.html"> 88</a></span>  <span class="keyword">struct </span><a class="code" href="a00988.html">bases</a></div> <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  {</div> <div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keyword">typedef</span> <a class="code" href="a00985.html">__reflection_typelist</a><__bases(_Tp)...> <a class="code" href="a00985.html">type</a>;</div> <div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  };</div> <div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment"></span></div> <div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="comment"> /// Enumerate all the direct base classes of a class. Form of a typelist.</span></div> <div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="comment"></span> <span class="keyword">template</span><<span class="keyword">typename</span> _Tp></div> <div class="line"><a name="l00095"></a><span class="lineno"><a class="line" href="a00990.html"> 95</a></span>  <span class="keyword">struct </span><a class="code" href="a00990.html">direct_bases</a></div> <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  {</div> <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="keyword">typedef</span> <a class="code" href="a00985.html">__reflection_typelist</a><__direct_bases(_Tp)...> <a class="code" href="a00985.html">type</a>;</div> <div class="line"><a name="l00098"></a><span class="lineno"> 98</span>  };</div> <div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="comment"></span></div> <div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="comment"> /// @} group metaprogramming</span></div> <div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="comment"></span></div> <div class="line"><a name="l00102"></a><span class="lineno"> 102</span> _GLIBCXX_END_NAMESPACE_VERSION</div> <div class="line"><a name="l00103"></a><span class="lineno"> 103</span> }</div> <div class="line"><a name="l00104"></a><span class="lineno"> 104</span> }</div> <div class="line"><a name="l00105"></a><span class="lineno"> 105</span> </div> <div class="line"><a name="l00106"></a><span class="lineno"> 106</span> <span class="preprocessor">#endif // _GLIBCXX_TR2_TYPE_TRAITS</span></div> <div class="ttc" id="a00988_html"><div class="ttname"><a href="a00988.html">std::tr2::bases</a></div><div class="ttdoc">Sequence abstraction metafunctions for manipulating a typelist. </div><div class="ttdef"><b>Definition:</b> <a href="a01610_source.html#l00088">tr2/type_traits:88</a></div></div> <div class="ttc" id="a01610_html"><div class="ttname"><a href="a01610.html">type_traits</a></div></div> <div class="ttc" id="a00990_html"><div class="ttname"><a href="a00990.html">std::tr2::direct_bases</a></div><div class="ttdoc">Enumerate all the direct base classes of a class. Form of a typelist. </div><div class="ttdef"><b>Definition:</b> <a href="a01610_source.html#l00095">tr2/type_traits:95</a></div></div> <div class="ttc" id="a01070_html"><div class="ttname"><a href="a01070.html">c++config.h</a></div></div> <div class="ttc" id="a00458_html"><div class="ttname"><a href="a00458.html">std::integral_constant</a></div><div class="ttdoc">integral_constant </div><div class="ttdef"><b>Definition:</b> <a href="a01609_source.html#l00057">type_traits:57</a></div></div> <div class="ttc" id="a00985_html"><div class="ttname"><a href="a00985.html">std::tr2::__reflection_typelist</a></div><div class="ttdef"><b>Definition:</b> <a href="a01610_source.html#l00056">tr2/type_traits:56</a></div></div> </div><!-- fragment --></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="dir_db0ecf5ff2f2b0f79bbdc6312473b0df.html">include</a></li><li class="navelem"><a class="el" href="dir_e043183027296c75b2ce415f8e0e8ff4.html">tr2</a></li><li class="navelem"><a class="el" href="a01610.html">type_traits</a></li> <li class="footer">Generated by <a href="http://www.doxygen.org/index.html"> <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.5 </li> </ul> </div> </body> </html>