<!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++: boost_concept_check.h 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="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('a00296_source.html','');}); /* @license-end */ </script> <div id="doc-content"> <div class="header"> <div class="headertitle"> <div class="title">boost_concept_check.h</div> </div> </div><!--header--> <div class="contents"> <a href="a00296.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">// -*- 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) 2004-2018 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> </div><div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment">// (C) Copyright Jeremy Siek 2000. Permission to copy, use, modify,</span></div><div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">// sell and distribute this software is granted provided this</span></div><div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">// copyright notice appears in all copies. This software is provided</span></div><div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment">// "as is" without express or implied warranty, and with no claim as</span></div><div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">// to its suitability for any purpose.</span></div><div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">//</span></div><div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment"></span></div><div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment">/** @file bits/boost_concept_check.h</span></div><div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment"> * This is an internal header file, included by other library headers.</span></div><div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment"> * Do not attempt to use it directly. @headername{iterator}</span></div><div class="line"><a name="l00035"></a><span class="lineno"> 35</span> <span class="comment"> */</span></div><div class="line"><a name="l00036"></a><span class="lineno"> 36</span> </div><div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment">// GCC Note: based on version 1.12.0 of the Boost library.</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> </div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="preprocessor">#ifndef _BOOST_CONCEPT_CHECK_H</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="preprocessor">#define _BOOST_CONCEPT_CHECK_H 1</span></div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> </div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="preprocessor">#pragma GCC system_header</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> </div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> <span class="preprocessor">#include <<a class="code" href="a00656.html">bits/c++config.h</a>></span></div><div class="line"><a name="l00045"></a><span class="lineno"> 45</span> <span class="preprocessor">#include <<a class="code" href="a00554.html">bits/stl_iterator_base_types.h</a>></span> <span class="comment">// for traits and tags</span></div><div class="line"><a name="l00046"></a><span class="lineno"> 46</span> </div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="keyword">namespace </span><a class="code" href="a01544.html">__gnu_cxx</a> _GLIBCXX_VISIBILITY(default)</div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span> {</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> _GLIBCXX_BEGIN_NAMESPACE_VERSION</div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span> </div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span> <span class="preprocessor">#pragma GCC diagnostic push</span></div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="preprocessor">#pragma GCC diagnostic ignored "-Wunused-local-typedefs"</span></div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span> </div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> <span class="preprocessor">#define _IsUnused __attribute__ ((__unused__))</span></div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span> </div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment">// When the C-C code is in use, we would like this function to do as little</span></div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span> <span class="comment">// as possible at runtime, use as few resources as possible, and hopefully</span></div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment">// be elided out of existence... hmmm.</span></div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="keyword">template</span> <<span class="keyword">class</span> _Concept></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span> <span class="keyword">inline</span> <span class="keywordtype">void</span> __function_requires()</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>  void (_Concept::*__x)() _IsUnused = &_Concept::__constraints;</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> </div><div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment">// No definition: if this is referenced, there's a problem with</span></div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span> <span class="comment">// the instantiating type not being one of the required integer types.</span></div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment">// Unfortunately, this results in a link-time error, not a compile-time error.</span></div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="keywordtype">void</span> __error_type_must_be_an_integer_type();</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="keywordtype">void</span> __error_type_must_be_an_unsigned_integer_type();</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> <span class="keywordtype">void</span> __error_type_must_be_a_signed_integer_type();</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment">// ??? Should the "concept_checking*" structs begin with more than _ ?</span></div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="preprocessor">#define _GLIBCXX_CLASS_REQUIRES(_type_var, _ns, _concept) \</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="preprocessor"> typedef void (_ns::_concept <_type_var>::* _func##_type_var##_concept)(); \</span></div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> <span class="preprocessor"> template <_func##_type_var##_concept _Tp1> \</span></div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> <span class="preprocessor"> struct _concept_checking##_type_var##_concept { }; \</span></div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="preprocessor"> typedef _concept_checking##_type_var##_concept< \</span></div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="preprocessor"> &_ns::_concept <_type_var>::__constraints> \</span></div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="preprocessor"> _concept_checking_typedef##_type_var##_concept</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="preprocessor">#define _GLIBCXX_CLASS_REQUIRES2(_type_var1, _type_var2, _ns, _concept) \</span></div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="preprocessor"> typedef void (_ns::_concept <_type_var1,_type_var2>::* _func##_type_var1##_type_var2##_concept)(); \</span></div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="preprocessor"> template <_func##_type_var1##_type_var2##_concept _Tp1> \</span></div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="preprocessor"> struct _concept_checking##_type_var1##_type_var2##_concept { }; \</span></div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> <span class="preprocessor"> typedef _concept_checking##_type_var1##_type_var2##_concept< \</span></div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="preprocessor"> &_ns::_concept <_type_var1,_type_var2>::__constraints> \</span></div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span> <span class="preprocessor"> _concept_checking_typedef##_type_var1##_type_var2##_concept</span></div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span> </div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span> <span class="preprocessor">#define _GLIBCXX_CLASS_REQUIRES3(_type_var1, _type_var2, _type_var3, _ns, _concept) \</span></div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="preprocessor"> typedef void (_ns::_concept <_type_var1,_type_var2,_type_var3>::* _func##_type_var1##_type_var2##_type_var3##_concept)(); \</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="preprocessor"> template <_func##_type_var1##_type_var2##_type_var3##_concept _Tp1> \</span></div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="preprocessor"> struct _concept_checking##_type_var1##_type_var2##_type_var3##_concept { }; \</span></div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span> <span class="preprocessor"> typedef _concept_checking##_type_var1##_type_var2##_type_var3##_concept< \</span></div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="preprocessor"> &_ns::_concept <_type_var1,_type_var2,_type_var3>::__constraints> \</span></div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> <span class="preprocessor"> _concept_checking_typedef##_type_var1##_type_var2##_type_var3##_concept</span></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="preprocessor">#define _GLIBCXX_CLASS_REQUIRES4(_type_var1, _type_var2, _type_var3, _type_var4, _ns, _concept) \</span></div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="preprocessor"> typedef void (_ns::_concept <_type_var1,_type_var2,_type_var3,_type_var4>::* _func##_type_var1##_type_var2##_type_var3##_type_var4##_concept)(); \</span></div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="preprocessor"> template <_func##_type_var1##_type_var2##_type_var3##_type_var4##_concept _Tp1> \</span></div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="preprocessor"> struct _concept_checking##_type_var1##_type_var2##_type_var3##_type_var4##_concept { }; \</span></div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> <span class="preprocessor"> typedef _concept_checking##_type_var1##_type_var2##_type_var3##_type_var4##_concept< \</span></div><div class="line"><a name="l00102"></a><span class="lineno"> 102</span> <span class="preprocessor"> &_ns::_concept <_type_var1,_type_var2,_type_var3,_type_var4>::__constraints> \</span></div><div class="line"><a name="l00103"></a><span class="lineno"> 103</span> <span class="preprocessor"> _concept_checking_typedef##_type_var1##_type_var2##_type_var3##_type_var4##_concept</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="keyword">template</span> <<span class="keyword">class</span> _Tp1, <span class="keyword">class</span> _Tp2></div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="keyword">struct </span>_Aux_require_same { };</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span> </div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> <span class="keyword">template</span> <<span class="keyword">class</span> _Tp></div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span> <span class="keyword">struct </span>_Aux_require_same<_Tp,_Tp> { <span class="keyword">typedef</span> _Tp _Type; };</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span> </div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp1, <span class="keyword">class</span> _Tp2></div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keyword">struct </span>_SameTypeConcept</div><div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  {</div><div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Aux_require_same<_Tp1, _Tp2>::_Type _Required;</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  }</div><div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  };</div><div class="line"><a name="l00119"></a><span class="lineno"> 119</span> </div><div class="line"><a name="l00120"></a><span class="lineno"> 120</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp></div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  <span class="keyword">struct </span>_IntegerConcept {</div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  __error_type_must_be_an_integer_type();</div><div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  }</div><div class="line"><a name="l00125"></a><span class="lineno"> 125</span>  };</div><div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="keyword">template</span> <> <span class="keyword">struct </span>_IntegerConcept<short> { <span class="keywordtype">void</span> __constraints() {} };</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  <span class="keyword">template</span> <> <span class="keyword">struct </span>_IntegerConcept<unsigned short> { <span class="keywordtype">void</span> __constraints(){} };</div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span>  <span class="keyword">template</span> <> <span class="keyword">struct </span>_IntegerConcept<int> { <span class="keywordtype">void</span> __constraints() {} };</div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keyword">template</span> <> <span class="keyword">struct </span>_IntegerConcept<unsigned int> { <span class="keywordtype">void</span> __constraints() {} };</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  <span class="keyword">template</span> <> <span class="keyword">struct </span>_IntegerConcept<long> { <span class="keywordtype">void</span> __constraints() {} };</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  <span class="keyword">template</span> <> <span class="keyword">struct </span>_IntegerConcept<unsigned long> { <span class="keywordtype">void</span> __constraints() {} };</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  <span class="keyword">template</span> <> <span class="keyword">struct </span>_IntegerConcept<long long> { <span class="keywordtype">void</span> __constraints() {} };</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keyword">template</span> <> <span class="keyword">struct </span>_IntegerConcept<unsigned long long></div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span>  { <span class="keywordtype">void</span> __constraints() {} };</div><div class="line"><a name="l00135"></a><span class="lineno"> 135</span> </div><div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp></div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  <span class="keyword">struct </span>_SignedIntegerConcept {</div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  __error_type_must_be_a_signed_integer_type();</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  }</div><div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  };</div><div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  <span class="keyword">template</span> <> <span class="keyword">struct </span>_SignedIntegerConcept<short> { <span class="keywordtype">void</span> __constraints() {} };</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  <span class="keyword">template</span> <> <span class="keyword">struct </span>_SignedIntegerConcept<int> { <span class="keywordtype">void</span> __constraints() {} };</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  <span class="keyword">template</span> <> <span class="keyword">struct </span>_SignedIntegerConcept<long> { <span class="keywordtype">void</span> __constraints() {} };</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keyword">template</span> <> <span class="keyword">struct </span>_SignedIntegerConcept<long long> { <span class="keywordtype">void</span> __constraints(){}};</div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span> </div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp></div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span>  <span class="keyword">struct </span>_UnsignedIntegerConcept {</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span>  __error_type_must_be_an_unsigned_integer_type();</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span>  }</div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span>  };</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span>  <span class="keyword">template</span> <> <span class="keyword">struct </span>_UnsignedIntegerConcept<unsigned short></div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span>  { <span class="keywordtype">void</span> __constraints() {} };</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span>  <span class="keyword">template</span> <> <span class="keyword">struct </span>_UnsignedIntegerConcept<unsigned int></div><div class="line"><a name="l00156"></a><span class="lineno"> 156</span>  { <span class="keywordtype">void</span> __constraints() {} };</div><div class="line"><a name="l00157"></a><span class="lineno"> 157</span>  <span class="keyword">template</span> <> <span class="keyword">struct </span>_UnsignedIntegerConcept<unsigned long></div><div class="line"><a name="l00158"></a><span class="lineno"> 158</span>  { <span class="keywordtype">void</span> __constraints() {} };</div><div class="line"><a name="l00159"></a><span class="lineno"> 159</span>  <span class="keyword">template</span> <> <span class="keyword">struct </span>_UnsignedIntegerConcept<unsigned long long></div><div class="line"><a name="l00160"></a><span class="lineno"> 160</span>  { <span class="keywordtype">void</span> __constraints() {} };</div><div class="line"><a name="l00161"></a><span class="lineno"> 161</span> </div><div class="line"><a name="l00162"></a><span class="lineno"> 162</span>  <span class="comment">//===========================================================================</span></div><div class="line"><a name="l00163"></a><span class="lineno"> 163</span>  <span class="comment">// Basic Concepts</span></div><div class="line"><a name="l00164"></a><span class="lineno"> 164</span> </div><div class="line"><a name="l00165"></a><span class="lineno"> 165</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp></div><div class="line"><a name="l00166"></a><span class="lineno"> 166</span>  <span class="keyword">struct </span>_DefaultConstructibleConcept</div><div class="line"><a name="l00167"></a><span class="lineno"> 167</span>  {</div><div class="line"><a name="l00168"></a><span class="lineno"> 168</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00169"></a><span class="lineno"> 169</span>  _Tp __a _IsUnused; <span class="comment">// require default constructor</span></div><div class="line"><a name="l00170"></a><span class="lineno"> 170</span>  }</div><div class="line"><a name="l00171"></a><span class="lineno"> 171</span>  };</div><div class="line"><a name="l00172"></a><span class="lineno"> 172</span> </div><div class="line"><a name="l00173"></a><span class="lineno"> 173</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp></div><div class="line"><a name="l00174"></a><span class="lineno"> 174</span>  <span class="keyword">struct </span>_AssignableConcept</div><div class="line"><a name="l00175"></a><span class="lineno"> 175</span>  {</div><div class="line"><a name="l00176"></a><span class="lineno"> 176</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00177"></a><span class="lineno"> 177</span>  __a = __a; <span class="comment">// require assignment operator</span></div><div class="line"><a name="l00178"></a><span class="lineno"> 178</span>  __const_constraints(__a);</div><div class="line"><a name="l00179"></a><span class="lineno"> 179</span>  }</div><div class="line"><a name="l00180"></a><span class="lineno"> 180</span>  <span class="keywordtype">void</span> __const_constraints(<span class="keyword">const</span> _Tp& __b) {</div><div class="line"><a name="l00181"></a><span class="lineno"> 181</span>  __a = __b; <span class="comment">// const required for argument to assignment</span></div><div class="line"><a name="l00182"></a><span class="lineno"> 182</span>  }</div><div class="line"><a name="l00183"></a><span class="lineno"> 183</span>  _Tp __a;</div><div class="line"><a name="l00184"></a><span class="lineno"> 184</span>  <span class="comment">// possibly should be "Tp* a;" and then dereference "a" in constraint</span></div><div class="line"><a name="l00185"></a><span class="lineno"> 185</span>  <span class="comment">// functions? present way would require a default ctor, i think...</span></div><div class="line"><a name="l00186"></a><span class="lineno"> 186</span>  };</div><div class="line"><a name="l00187"></a><span class="lineno"> 187</span> </div><div class="line"><a name="l00188"></a><span class="lineno"> 188</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp></div><div class="line"><a name="l00189"></a><span class="lineno"> 189</span>  <span class="keyword">struct </span>_CopyConstructibleConcept</div><div class="line"><a name="l00190"></a><span class="lineno"> 190</span>  {</div><div class="line"><a name="l00191"></a><span class="lineno"> 191</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00192"></a><span class="lineno"> 192</span>  _Tp __a(__b); <span class="comment">// require copy constructor</span></div><div class="line"><a name="l00193"></a><span class="lineno"> 193</span>  _Tp* __ptr _IsUnused = &__a; <span class="comment">// require address of operator</span></div><div class="line"><a name="l00194"></a><span class="lineno"> 194</span>  __const_constraints(__a);</div><div class="line"><a name="l00195"></a><span class="lineno"> 195</span>  }</div><div class="line"><a name="l00196"></a><span class="lineno"> 196</span>  <span class="keywordtype">void</span> __const_constraints(<span class="keyword">const</span> _Tp& __a) {</div><div class="line"><a name="l00197"></a><span class="lineno"> 197</span>  _Tp __c _IsUnused(__a); <span class="comment">// require const copy constructor</span></div><div class="line"><a name="l00198"></a><span class="lineno"> 198</span>  <span class="keyword">const</span> _Tp* __ptr _IsUnused = &__a; <span class="comment">// require const address of operator</span></div><div class="line"><a name="l00199"></a><span class="lineno"> 199</span>  }</div><div class="line"><a name="l00200"></a><span class="lineno"> 200</span>  _Tp __b;</div><div class="line"><a name="l00201"></a><span class="lineno"> 201</span>  };</div><div class="line"><a name="l00202"></a><span class="lineno"> 202</span> </div><div class="line"><a name="l00203"></a><span class="lineno"> 203</span>  <span class="comment">// The SGI STL version of Assignable requires copy constructor and operator=</span></div><div class="line"><a name="l00204"></a><span class="lineno"> 204</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp></div><div class="line"><a name="l00205"></a><span class="lineno"> 205</span>  <span class="keyword">struct </span>_SGIAssignableConcept</div><div class="line"><a name="l00206"></a><span class="lineno"> 206</span>  {</div><div class="line"><a name="l00207"></a><span class="lineno"> 207</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00208"></a><span class="lineno"> 208</span>  _Tp __b _IsUnused(__a);</div><div class="line"><a name="l00209"></a><span class="lineno"> 209</span>  __a = __a; <span class="comment">// require assignment operator</span></div><div class="line"><a name="l00210"></a><span class="lineno"> 210</span>  __const_constraints(__a);</div><div class="line"><a name="l00211"></a><span class="lineno"> 211</span>  }</div><div class="line"><a name="l00212"></a><span class="lineno"> 212</span>  <span class="keywordtype">void</span> __const_constraints(<span class="keyword">const</span> _Tp& __b) {</div><div class="line"><a name="l00213"></a><span class="lineno"> 213</span>  _Tp __c _IsUnused(__b);</div><div class="line"><a name="l00214"></a><span class="lineno"> 214</span>  __a = __b; <span class="comment">// const required for argument to assignment</span></div><div class="line"><a name="l00215"></a><span class="lineno"> 215</span>  }</div><div class="line"><a name="l00216"></a><span class="lineno"> 216</span>  _Tp __a;</div><div class="line"><a name="l00217"></a><span class="lineno"> 217</span>  };</div><div class="line"><a name="l00218"></a><span class="lineno"> 218</span> </div><div class="line"><a name="l00219"></a><span class="lineno"> 219</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _From, <span class="keyword">class</span> _To></div><div class="line"><a name="l00220"></a><span class="lineno"> 220</span>  <span class="keyword">struct </span>_ConvertibleConcept</div><div class="line"><a name="l00221"></a><span class="lineno"> 221</span>  {</div><div class="line"><a name="l00222"></a><span class="lineno"> 222</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00223"></a><span class="lineno"> 223</span>  _To __y _IsUnused = __x;</div><div class="line"><a name="l00224"></a><span class="lineno"> 224</span>  }</div><div class="line"><a name="l00225"></a><span class="lineno"> 225</span>  _From __x;</div><div class="line"><a name="l00226"></a><span class="lineno"> 226</span>  };</div><div class="line"><a name="l00227"></a><span class="lineno"> 227</span> </div><div class="line"><a name="l00228"></a><span class="lineno"> 228</span>  <span class="comment">// The C++ standard requirements for many concepts talk about return</span></div><div class="line"><a name="l00229"></a><span class="lineno"> 229</span>  <span class="comment">// types that must be "convertible to bool". The problem with this</span></div><div class="line"><a name="l00230"></a><span class="lineno"> 230</span>  <span class="comment">// requirement is that it leaves the door open for evil proxies that</span></div><div class="line"><a name="l00231"></a><span class="lineno"> 231</span>  <span class="comment">// define things like operator|| with strange return types. Two</span></div><div class="line"><a name="l00232"></a><span class="lineno"> 232</span>  <span class="comment">// possible solutions are:</span></div><div class="line"><a name="l00233"></a><span class="lineno"> 233</span>  <span class="comment">// 1) require the return type to be exactly bool</span></div><div class="line"><a name="l00234"></a><span class="lineno"> 234</span>  <span class="comment">// 2) stay with convertible to bool, and also</span></div><div class="line"><a name="l00235"></a><span class="lineno"> 235</span>  <span class="comment">// specify stuff about all the logical operators.</span></div><div class="line"><a name="l00236"></a><span class="lineno"> 236</span>  <span class="comment">// For now we just test for convertible to bool.</span></div><div class="line"><a name="l00237"></a><span class="lineno"> 237</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp></div><div class="line"><a name="l00238"></a><span class="lineno"> 238</span>  <span class="keywordtype">void</span> __aux_require_boolean_expr(<span class="keyword">const</span> _Tp& __t) {</div><div class="line"><a name="l00239"></a><span class="lineno"> 239</span>  <span class="keywordtype">bool</span> __x _IsUnused = __t;</div><div class="line"><a name="l00240"></a><span class="lineno"> 240</span>  }</div><div class="line"><a name="l00241"></a><span class="lineno"> 241</span> </div><div class="line"><a name="l00242"></a><span class="lineno"> 242</span> <span class="comment">// FIXME</span></div><div class="line"><a name="l00243"></a><span class="lineno"> 243</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp></div><div class="line"><a name="l00244"></a><span class="lineno"> 244</span>  <span class="keyword">struct </span>_EqualityComparableConcept</div><div class="line"><a name="l00245"></a><span class="lineno"> 245</span>  {</div><div class="line"><a name="l00246"></a><span class="lineno"> 246</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00247"></a><span class="lineno"> 247</span>  __aux_require_boolean_expr(__a == __b);</div><div class="line"><a name="l00248"></a><span class="lineno"> 248</span>  }</div><div class="line"><a name="l00249"></a><span class="lineno"> 249</span>  _Tp __a, __b;</div><div class="line"><a name="l00250"></a><span class="lineno"> 250</span>  };</div><div class="line"><a name="l00251"></a><span class="lineno"> 251</span> </div><div class="line"><a name="l00252"></a><span class="lineno"> 252</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp></div><div class="line"><a name="l00253"></a><span class="lineno"> 253</span>  <span class="keyword">struct </span>_LessThanComparableConcept</div><div class="line"><a name="l00254"></a><span class="lineno"> 254</span>  {</div><div class="line"><a name="l00255"></a><span class="lineno"> 255</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00256"></a><span class="lineno"> 256</span>  __aux_require_boolean_expr(__a < __b);</div><div class="line"><a name="l00257"></a><span class="lineno"> 257</span>  }</div><div class="line"><a name="l00258"></a><span class="lineno"> 258</span>  _Tp __a, __b;</div><div class="line"><a name="l00259"></a><span class="lineno"> 259</span>  };</div><div class="line"><a name="l00260"></a><span class="lineno"> 260</span> </div><div class="line"><a name="l00261"></a><span class="lineno"> 261</span>  <span class="comment">// This is equivalent to SGI STL's LessThanComparable.</span></div><div class="line"><a name="l00262"></a><span class="lineno"> 262</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp></div><div class="line"><a name="l00263"></a><span class="lineno"> 263</span>  <span class="keyword">struct </span>_ComparableConcept</div><div class="line"><a name="l00264"></a><span class="lineno"> 264</span>  {</div><div class="line"><a name="l00265"></a><span class="lineno"> 265</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00266"></a><span class="lineno"> 266</span>  __aux_require_boolean_expr(__a < __b);</div><div class="line"><a name="l00267"></a><span class="lineno"> 267</span>  __aux_require_boolean_expr(__a > __b);</div><div class="line"><a name="l00268"></a><span class="lineno"> 268</span>  __aux_require_boolean_expr(__a <= __b);</div><div class="line"><a name="l00269"></a><span class="lineno"> 269</span>  __aux_require_boolean_expr(__a >= __b);</div><div class="line"><a name="l00270"></a><span class="lineno"> 270</span>  }</div><div class="line"><a name="l00271"></a><span class="lineno"> 271</span>  _Tp __a, __b;</div><div class="line"><a name="l00272"></a><span class="lineno"> 272</span>  };</div><div class="line"><a name="l00273"></a><span class="lineno"> 273</span> </div><div class="line"><a name="l00274"></a><span class="lineno"> 274</span> <span class="preprocessor">#define _GLIBCXX_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT(_OP,_NAME) \</span></div><div class="line"><a name="l00275"></a><span class="lineno"> 275</span> <span class="preprocessor"> template <class _First, class _Second> \</span></div><div class="line"><a name="l00276"></a><span class="lineno"> 276</span> <span class="preprocessor"> struct _NAME { \</span></div><div class="line"><a name="l00277"></a><span class="lineno"> 277</span> <span class="preprocessor"> void __constraints() { (void)__constraints_(); } \</span></div><div class="line"><a name="l00278"></a><span class="lineno"> 278</span> <span class="preprocessor"> bool __constraints_() { \</span></div><div class="line"><a name="l00279"></a><span class="lineno"> 279</span> <span class="preprocessor"> return __a _OP __b; \</span></div><div class="line"><a name="l00280"></a><span class="lineno"> 280</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00281"></a><span class="lineno"> 281</span> <span class="preprocessor"> _First __a; \</span></div><div class="line"><a name="l00282"></a><span class="lineno"> 282</span> <span class="preprocessor"> _Second __b; \</span></div><div class="line"><a name="l00283"></a><span class="lineno"> 283</span> <span class="preprocessor"> }</span></div><div class="line"><a name="l00284"></a><span class="lineno"> 284</span> </div><div class="line"><a name="l00285"></a><span class="lineno"> 285</span> <span class="preprocessor">#define _GLIBCXX_DEFINE_BINARY_OPERATOR_CONSTRAINT(_OP,_NAME) \</span></div><div class="line"><a name="l00286"></a><span class="lineno"> 286</span> <span class="preprocessor"> template <class _Ret, class _First, class _Second> \</span></div><div class="line"><a name="l00287"></a><span class="lineno"> 287</span> <span class="preprocessor"> struct _NAME { \</span></div><div class="line"><a name="l00288"></a><span class="lineno"> 288</span> <span class="preprocessor"> void __constraints() { (void)__constraints_(); } \</span></div><div class="line"><a name="l00289"></a><span class="lineno"> 289</span> <span class="preprocessor"> _Ret __constraints_() { \</span></div><div class="line"><a name="l00290"></a><span class="lineno"> 290</span> <span class="preprocessor"> return __a _OP __b; \</span></div><div class="line"><a name="l00291"></a><span class="lineno"> 291</span> <span class="preprocessor"> } \</span></div><div class="line"><a name="l00292"></a><span class="lineno"> 292</span> <span class="preprocessor"> _First __a; \</span></div><div class="line"><a name="l00293"></a><span class="lineno"> 293</span> <span class="preprocessor"> _Second __b; \</span></div><div class="line"><a name="l00294"></a><span class="lineno"> 294</span> <span class="preprocessor"> }</span></div><div class="line"><a name="l00295"></a><span class="lineno"> 295</span> </div><div class="line"><a name="l00296"></a><span class="lineno"> 296</span>  _GLIBCXX_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT(==, _EqualOpConcept);</div><div class="line"><a name="l00297"></a><span class="lineno"> 297</span>  _GLIBCXX_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT(!=, _NotEqualOpConcept);</div><div class="line"><a name="l00298"></a><span class="lineno"> 298</span>  _GLIBCXX_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT(<, _LessThanOpConcept);</div><div class="line"><a name="l00299"></a><span class="lineno"> 299</span>  _GLIBCXX_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT(<=, _LessEqualOpConcept);</div><div class="line"><a name="l00300"></a><span class="lineno"> 300</span>  _GLIBCXX_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT(>, _GreaterThanOpConcept);</div><div class="line"><a name="l00301"></a><span class="lineno"> 301</span>  _GLIBCXX_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT(>=, _GreaterEqualOpConcept);</div><div class="line"><a name="l00302"></a><span class="lineno"> 302</span> </div><div class="line"><a name="l00303"></a><span class="lineno"> 303</span>  _GLIBCXX_DEFINE_BINARY_OPERATOR_CONSTRAINT(+, _PlusOpConcept);</div><div class="line"><a name="l00304"></a><span class="lineno"> 304</span>  _GLIBCXX_DEFINE_BINARY_OPERATOR_CONSTRAINT(*, _TimesOpConcept);</div><div class="line"><a name="l00305"></a><span class="lineno"> 305</span>  _GLIBCXX_DEFINE_BINARY_OPERATOR_CONSTRAINT(/, _DivideOpConcept);</div><div class="line"><a name="l00306"></a><span class="lineno"> 306</span>  _GLIBCXX_DEFINE_BINARY_OPERATOR_CONSTRAINT(-, _SubtractOpConcept);</div><div class="line"><a name="l00307"></a><span class="lineno"> 307</span>  _GLIBCXX_DEFINE_BINARY_OPERATOR_CONSTRAINT(%, _ModOpConcept);</div><div class="line"><a name="l00308"></a><span class="lineno"> 308</span> </div><div class="line"><a name="l00309"></a><span class="lineno"> 309</span> <span class="preprocessor">#undef _GLIBCXX_DEFINE_BINARY_PREDICATE_OP_CONSTRAINT</span></div><div class="line"><a name="l00310"></a><span class="lineno"> 310</span> <span class="preprocessor">#undef _GLIBCXX_DEFINE_BINARY_OPERATOR_CONSTRAINT</span></div><div class="line"><a name="l00311"></a><span class="lineno"> 311</span> </div><div class="line"><a name="l00312"></a><span class="lineno"> 312</span>  <span class="comment">//===========================================================================</span></div><div class="line"><a name="l00313"></a><span class="lineno"> 313</span>  <span class="comment">// Function Object Concepts</span></div><div class="line"><a name="l00314"></a><span class="lineno"> 314</span> </div><div class="line"><a name="l00315"></a><span class="lineno"> 315</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Func, <span class="keyword">class</span> _Return></div><div class="line"><a name="l00316"></a><span class="lineno"> 316</span>  <span class="keyword">struct </span>_GeneratorConcept</div><div class="line"><a name="l00317"></a><span class="lineno"> 317</span>  {</div><div class="line"><a name="l00318"></a><span class="lineno"> 318</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00319"></a><span class="lineno"> 319</span>  <span class="keyword">const</span> _Return& __r _IsUnused = __f();<span class="comment">// require operator() member function</span></div><div class="line"><a name="l00320"></a><span class="lineno"> 320</span>  }</div><div class="line"><a name="l00321"></a><span class="lineno"> 321</span>  _Func __f;</div><div class="line"><a name="l00322"></a><span class="lineno"> 322</span>  };</div><div class="line"><a name="l00323"></a><span class="lineno"> 323</span> </div><div class="line"><a name="l00324"></a><span class="lineno"> 324</span> </div><div class="line"><a name="l00325"></a><span class="lineno"> 325</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Func></div><div class="line"><a name="l00326"></a><span class="lineno"> 326</span>  <span class="keyword">struct </span>_GeneratorConcept<_Func,void></div><div class="line"><a name="l00327"></a><span class="lineno"> 327</span>  {</div><div class="line"><a name="l00328"></a><span class="lineno"> 328</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00329"></a><span class="lineno"> 329</span>  __f(); <span class="comment">// require operator() member function</span></div><div class="line"><a name="l00330"></a><span class="lineno"> 330</span>  }</div><div class="line"><a name="l00331"></a><span class="lineno"> 331</span>  _Func __f;</div><div class="line"><a name="l00332"></a><span class="lineno"> 332</span>  };</div><div class="line"><a name="l00333"></a><span class="lineno"> 333</span> </div><div class="line"><a name="l00334"></a><span class="lineno"> 334</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Func, <span class="keyword">class</span> _Return, <span class="keyword">class</span> _Arg></div><div class="line"><a name="l00335"></a><span class="lineno"> 335</span>  <span class="keyword">struct </span>_UnaryFunctionConcept</div><div class="line"><a name="l00336"></a><span class="lineno"> 336</span>  {</div><div class="line"><a name="l00337"></a><span class="lineno"> 337</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00338"></a><span class="lineno"> 338</span>  __r = __f(__arg); <span class="comment">// require operator()</span></div><div class="line"><a name="l00339"></a><span class="lineno"> 339</span>  }</div><div class="line"><a name="l00340"></a><span class="lineno"> 340</span>  _Func __f;</div><div class="line"><a name="l00341"></a><span class="lineno"> 341</span>  _Arg __arg;</div><div class="line"><a name="l00342"></a><span class="lineno"> 342</span>  _Return __r;</div><div class="line"><a name="l00343"></a><span class="lineno"> 343</span>  };</div><div class="line"><a name="l00344"></a><span class="lineno"> 344</span> </div><div class="line"><a name="l00345"></a><span class="lineno"> 345</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Func, <span class="keyword">class</span> _Arg></div><div class="line"><a name="l00346"></a><span class="lineno"> 346</span>  <span class="keyword">struct </span>_UnaryFunctionConcept<_Func, void, _Arg> {</div><div class="line"><a name="l00347"></a><span class="lineno"> 347</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00348"></a><span class="lineno"> 348</span>  __f(__arg); <span class="comment">// require operator()</span></div><div class="line"><a name="l00349"></a><span class="lineno"> 349</span>  }</div><div class="line"><a name="l00350"></a><span class="lineno"> 350</span>  _Func __f;</div><div class="line"><a name="l00351"></a><span class="lineno"> 351</span>  _Arg __arg;</div><div class="line"><a name="l00352"></a><span class="lineno"> 352</span>  };</div><div class="line"><a name="l00353"></a><span class="lineno"> 353</span> </div><div class="line"><a name="l00354"></a><span class="lineno"> 354</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Func, <span class="keyword">class</span> _Return, <span class="keyword">class</span> _First, <span class="keyword">class</span> _Second></div><div class="line"><a name="l00355"></a><span class="lineno"> 355</span>  <span class="keyword">struct </span>_BinaryFunctionConcept</div><div class="line"><a name="l00356"></a><span class="lineno"> 356</span>  {</div><div class="line"><a name="l00357"></a><span class="lineno"> 357</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00358"></a><span class="lineno"> 358</span>  __r = __f(__first, __second); <span class="comment">// require operator()</span></div><div class="line"><a name="l00359"></a><span class="lineno"> 359</span>  }</div><div class="line"><a name="l00360"></a><span class="lineno"> 360</span>  _Func __f;</div><div class="line"><a name="l00361"></a><span class="lineno"> 361</span>  _First __first;</div><div class="line"><a name="l00362"></a><span class="lineno"> 362</span>  _Second __second;</div><div class="line"><a name="l00363"></a><span class="lineno"> 363</span>  _Return __r;</div><div class="line"><a name="l00364"></a><span class="lineno"> 364</span>  };</div><div class="line"><a name="l00365"></a><span class="lineno"> 365</span> </div><div class="line"><a name="l00366"></a><span class="lineno"> 366</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Func, <span class="keyword">class</span> _First, <span class="keyword">class</span> _Second></div><div class="line"><a name="l00367"></a><span class="lineno"> 367</span>  <span class="keyword">struct </span>_BinaryFunctionConcept<_Func, void, _First, _Second></div><div class="line"><a name="l00368"></a><span class="lineno"> 368</span>  {</div><div class="line"><a name="l00369"></a><span class="lineno"> 369</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00370"></a><span class="lineno"> 370</span>  __f(__first, __second); <span class="comment">// require operator()</span></div><div class="line"><a name="l00371"></a><span class="lineno"> 371</span>  }</div><div class="line"><a name="l00372"></a><span class="lineno"> 372</span>  _Func __f;</div><div class="line"><a name="l00373"></a><span class="lineno"> 373</span>  _First __first;</div><div class="line"><a name="l00374"></a><span class="lineno"> 374</span>  _Second __second;</div><div class="line"><a name="l00375"></a><span class="lineno"> 375</span>  };</div><div class="line"><a name="l00376"></a><span class="lineno"> 376</span> </div><div class="line"><a name="l00377"></a><span class="lineno"> 377</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Func, <span class="keyword">class</span> _Arg></div><div class="line"><a name="l00378"></a><span class="lineno"> 378</span>  <span class="keyword">struct </span>_UnaryPredicateConcept</div><div class="line"><a name="l00379"></a><span class="lineno"> 379</span>  {</div><div class="line"><a name="l00380"></a><span class="lineno"> 380</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00381"></a><span class="lineno"> 381</span>  __aux_require_boolean_expr(__f(__arg)); <span class="comment">// require op() returning bool</span></div><div class="line"><a name="l00382"></a><span class="lineno"> 382</span>  }</div><div class="line"><a name="l00383"></a><span class="lineno"> 383</span>  _Func __f;</div><div class="line"><a name="l00384"></a><span class="lineno"> 384</span>  _Arg __arg;</div><div class="line"><a name="l00385"></a><span class="lineno"> 385</span>  };</div><div class="line"><a name="l00386"></a><span class="lineno"> 386</span> </div><div class="line"><a name="l00387"></a><span class="lineno"> 387</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Func, <span class="keyword">class</span> _First, <span class="keyword">class</span> _Second></div><div class="line"><a name="l00388"></a><span class="lineno"> 388</span>  <span class="keyword">struct </span>_BinaryPredicateConcept</div><div class="line"><a name="l00389"></a><span class="lineno"> 389</span>  {</div><div class="line"><a name="l00390"></a><span class="lineno"> 390</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00391"></a><span class="lineno"> 391</span>  __aux_require_boolean_expr(__f(__a, __b)); <span class="comment">// require op() returning bool</span></div><div class="line"><a name="l00392"></a><span class="lineno"> 392</span>  }</div><div class="line"><a name="l00393"></a><span class="lineno"> 393</span>  _Func __f;</div><div class="line"><a name="l00394"></a><span class="lineno"> 394</span>  _First __a;</div><div class="line"><a name="l00395"></a><span class="lineno"> 395</span>  _Second __b;</div><div class="line"><a name="l00396"></a><span class="lineno"> 396</span>  };</div><div class="line"><a name="l00397"></a><span class="lineno"> 397</span> </div><div class="line"><a name="l00398"></a><span class="lineno"> 398</span>  <span class="comment">// use this when functor is used inside a container class like std::set</span></div><div class="line"><a name="l00399"></a><span class="lineno"> 399</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Func, <span class="keyword">class</span> _First, <span class="keyword">class</span> _Second></div><div class="line"><a name="l00400"></a><span class="lineno"> 400</span>  <span class="keyword">struct </span>_Const_BinaryPredicateConcept {</div><div class="line"><a name="l00401"></a><span class="lineno"> 401</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00402"></a><span class="lineno"> 402</span>  __const_constraints(__f);</div><div class="line"><a name="l00403"></a><span class="lineno"> 403</span>  }</div><div class="line"><a name="l00404"></a><span class="lineno"> 404</span>  <span class="keywordtype">void</span> __const_constraints(<span class="keyword">const</span> _Func& __fun) {</div><div class="line"><a name="l00405"></a><span class="lineno"> 405</span>  __function_requires<_BinaryPredicateConcept<_Func, _First, _Second> >();</div><div class="line"><a name="l00406"></a><span class="lineno"> 406</span>  <span class="comment">// operator() must be a const member function</span></div><div class="line"><a name="l00407"></a><span class="lineno"> 407</span>  __aux_require_boolean_expr(__fun(__a, __b));</div><div class="line"><a name="l00408"></a><span class="lineno"> 408</span>  }</div><div class="line"><a name="l00409"></a><span class="lineno"> 409</span>  _Func __f;</div><div class="line"><a name="l00410"></a><span class="lineno"> 410</span>  _First __a;</div><div class="line"><a name="l00411"></a><span class="lineno"> 411</span>  _Second __b;</div><div class="line"><a name="l00412"></a><span class="lineno"> 412</span>  };</div><div class="line"><a name="l00413"></a><span class="lineno"> 413</span> </div><div class="line"><a name="l00414"></a><span class="lineno"> 414</span>  <span class="comment">//===========================================================================</span></div><div class="line"><a name="l00415"></a><span class="lineno"> 415</span>  <span class="comment">// Iterator Concepts</span></div><div class="line"><a name="l00416"></a><span class="lineno"> 416</span> </div><div class="line"><a name="l00417"></a><span class="lineno"> 417</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp></div><div class="line"><a name="l00418"></a><span class="lineno"> 418</span>  <span class="keyword">struct </span>_TrivialIteratorConcept</div><div class="line"><a name="l00419"></a><span class="lineno"> 419</span>  {</div><div class="line"><a name="l00420"></a><span class="lineno"> 420</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00421"></a><span class="lineno"> 421</span> <span class="comment">// __function_requires< _DefaultConstructibleConcept<_Tp> >();</span></div><div class="line"><a name="l00422"></a><span class="lineno"> 422</span>  __function_requires< _AssignableConcept<_Tp> >();</div><div class="line"><a name="l00423"></a><span class="lineno"> 423</span>  __function_requires< _EqualityComparableConcept<_Tp> >();</div><div class="line"><a name="l00424"></a><span class="lineno"> 424</span> <span class="comment">// typedef typename std::iterator_traits<_Tp>::value_type _V;</span></div><div class="line"><a name="l00425"></a><span class="lineno"> 425</span>  (void)*__i; <span class="comment">// require dereference operator</span></div><div class="line"><a name="l00426"></a><span class="lineno"> 426</span>  }</div><div class="line"><a name="l00427"></a><span class="lineno"> 427</span>  _Tp __i;</div><div class="line"><a name="l00428"></a><span class="lineno"> 428</span>  };</div><div class="line"><a name="l00429"></a><span class="lineno"> 429</span> </div><div class="line"><a name="l00430"></a><span class="lineno"> 430</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp></div><div class="line"><a name="l00431"></a><span class="lineno"> 431</span>  <span class="keyword">struct </span>_Mutable_TrivialIteratorConcept</div><div class="line"><a name="l00432"></a><span class="lineno"> 432</span>  {</div><div class="line"><a name="l00433"></a><span class="lineno"> 433</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00434"></a><span class="lineno"> 434</span>  __function_requires< _TrivialIteratorConcept<_Tp> >();</div><div class="line"><a name="l00435"></a><span class="lineno"> 435</span>  *__i = *__j; <span class="comment">// require dereference and assignment</span></div><div class="line"><a name="l00436"></a><span class="lineno"> 436</span>  }</div><div class="line"><a name="l00437"></a><span class="lineno"> 437</span>  _Tp __i, __j;</div><div class="line"><a name="l00438"></a><span class="lineno"> 438</span>  };</div><div class="line"><a name="l00439"></a><span class="lineno"> 439</span> </div><div class="line"><a name="l00440"></a><span class="lineno"> 440</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp></div><div class="line"><a name="l00441"></a><span class="lineno"> 441</span>  <span class="keyword">struct </span>_InputIteratorConcept</div><div class="line"><a name="l00442"></a><span class="lineno"> 442</span>  {</div><div class="line"><a name="l00443"></a><span class="lineno"> 443</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00444"></a><span class="lineno"> 444</span>  __function_requires< _TrivialIteratorConcept<_Tp> >();</div><div class="line"><a name="l00445"></a><span class="lineno"> 445</span>  <span class="comment">// require iterator_traits typedef's</span></div><div class="line"><a name="l00446"></a><span class="lineno"> 446</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> std::iterator_traits<_Tp>::difference_type _Diff;</div><div class="line"><a name="l00447"></a><span class="lineno"> 447</span> <span class="comment">// __function_requires< _SignedIntegerConcept<_Diff> >();</span></div><div class="line"><a name="l00448"></a><span class="lineno"> 448</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> std::iterator_traits<_Tp>::reference _Ref;</div><div class="line"><a name="l00449"></a><span class="lineno"> 449</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> std::iterator_traits<_Tp>::pointer _Pt;</div><div class="line"><a name="l00450"></a><span class="lineno"> 450</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> std::iterator_traits<_Tp>::iterator_category _Cat;</div><div class="line"><a name="l00451"></a><span class="lineno"> 451</span>  __function_requires< _ConvertibleConcept<</div><div class="line"><a name="l00452"></a><span class="lineno"> 452</span>  <span class="keyword">typename</span> std::iterator_traits<_Tp>::iterator_category,</div><div class="line"><a name="l00453"></a><span class="lineno"> 453</span>  <a class="code" href="a07652.html">std::input_iterator_tag</a>> >();</div><div class="line"><a name="l00454"></a><span class="lineno"> 454</span>  ++__i; <span class="comment">// require preincrement operator</span></div><div class="line"><a name="l00455"></a><span class="lineno"> 455</span>  __i++; <span class="comment">// require postincrement operator</span></div><div class="line"><a name="l00456"></a><span class="lineno"> 456</span>  }</div><div class="line"><a name="l00457"></a><span class="lineno"> 457</span>  _Tp __i;</div><div class="line"><a name="l00458"></a><span class="lineno"> 458</span>  };</div><div class="line"><a name="l00459"></a><span class="lineno"> 459</span> </div><div class="line"><a name="l00460"></a><span class="lineno"> 460</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp, <span class="keyword">class</span> _ValueT></div><div class="line"><a name="l00461"></a><span class="lineno"> 461</span>  <span class="keyword">struct </span>_OutputIteratorConcept</div><div class="line"><a name="l00462"></a><span class="lineno"> 462</span>  {</div><div class="line"><a name="l00463"></a><span class="lineno"> 463</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00464"></a><span class="lineno"> 464</span>  __function_requires< _AssignableConcept<_Tp> >();</div><div class="line"><a name="l00465"></a><span class="lineno"> 465</span>  ++__i; <span class="comment">// require preincrement operator</span></div><div class="line"><a name="l00466"></a><span class="lineno"> 466</span>  __i++; <span class="comment">// require postincrement operator</span></div><div class="line"><a name="l00467"></a><span class="lineno"> 467</span>  *__i++ = __t; <span class="comment">// require postincrement and assignment</span></div><div class="line"><a name="l00468"></a><span class="lineno"> 468</span>  }</div><div class="line"><a name="l00469"></a><span class="lineno"> 469</span>  _Tp __i;</div><div class="line"><a name="l00470"></a><span class="lineno"> 470</span>  _ValueT __t;</div><div class="line"><a name="l00471"></a><span class="lineno"> 471</span>  };</div><div class="line"><a name="l00472"></a><span class="lineno"> 472</span> </div><div class="line"><a name="l00473"></a><span class="lineno"> 473</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp></div><div class="line"><a name="l00474"></a><span class="lineno"> 474</span>  <span class="keyword">struct </span>_ForwardIteratorConcept</div><div class="line"><a name="l00475"></a><span class="lineno"> 475</span>  {</div><div class="line"><a name="l00476"></a><span class="lineno"> 476</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00477"></a><span class="lineno"> 477</span>  __function_requires< _InputIteratorConcept<_Tp> >();</div><div class="line"><a name="l00478"></a><span class="lineno"> 478</span>  __function_requires< _DefaultConstructibleConcept<_Tp> >();</div><div class="line"><a name="l00479"></a><span class="lineno"> 479</span>  __function_requires< _ConvertibleConcept<</div><div class="line"><a name="l00480"></a><span class="lineno"> 480</span>  <span class="keyword">typename</span> std::iterator_traits<_Tp>::iterator_category,</div><div class="line"><a name="l00481"></a><span class="lineno"> 481</span>  <a class="code" href="a07660.html">std::forward_iterator_tag</a>> >();</div><div class="line"><a name="l00482"></a><span class="lineno"> 482</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> std::iterator_traits<_Tp>::reference _Ref;</div><div class="line"><a name="l00483"></a><span class="lineno"> 483</span>  _Ref __r _IsUnused = *__i;</div><div class="line"><a name="l00484"></a><span class="lineno"> 484</span>  }</div><div class="line"><a name="l00485"></a><span class="lineno"> 485</span>  _Tp __i;</div><div class="line"><a name="l00486"></a><span class="lineno"> 486</span>  };</div><div class="line"><a name="l00487"></a><span class="lineno"> 487</span> </div><div class="line"><a name="l00488"></a><span class="lineno"> 488</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp></div><div class="line"><a name="l00489"></a><span class="lineno"> 489</span>  <span class="keyword">struct </span>_Mutable_ForwardIteratorConcept</div><div class="line"><a name="l00490"></a><span class="lineno"> 490</span>  {</div><div class="line"><a name="l00491"></a><span class="lineno"> 491</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00492"></a><span class="lineno"> 492</span>  __function_requires< _ForwardIteratorConcept<_Tp> >();</div><div class="line"><a name="l00493"></a><span class="lineno"> 493</span>  *__i++ = *__i; <span class="comment">// require postincrement and assignment</span></div><div class="line"><a name="l00494"></a><span class="lineno"> 494</span>  }</div><div class="line"><a name="l00495"></a><span class="lineno"> 495</span>  _Tp __i;</div><div class="line"><a name="l00496"></a><span class="lineno"> 496</span>  };</div><div class="line"><a name="l00497"></a><span class="lineno"> 497</span> </div><div class="line"><a name="l00498"></a><span class="lineno"> 498</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp></div><div class="line"><a name="l00499"></a><span class="lineno"> 499</span>  <span class="keyword">struct </span>_BidirectionalIteratorConcept</div><div class="line"><a name="l00500"></a><span class="lineno"> 500</span>  {</div><div class="line"><a name="l00501"></a><span class="lineno"> 501</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00502"></a><span class="lineno"> 502</span>  __function_requires< _ForwardIteratorConcept<_Tp> >();</div><div class="line"><a name="l00503"></a><span class="lineno"> 503</span>  __function_requires< _ConvertibleConcept<</div><div class="line"><a name="l00504"></a><span class="lineno"> 504</span>  <span class="keyword">typename</span> std::iterator_traits<_Tp>::iterator_category,</div><div class="line"><a name="l00505"></a><span class="lineno"> 505</span>  <a class="code" href="a07664.html">std::bidirectional_iterator_tag</a>> >();</div><div class="line"><a name="l00506"></a><span class="lineno"> 506</span>  --__i; <span class="comment">// require predecrement operator</span></div><div class="line"><a name="l00507"></a><span class="lineno"> 507</span>  __i--; <span class="comment">// require postdecrement operator</span></div><div class="line"><a name="l00508"></a><span class="lineno"> 508</span>  }</div><div class="line"><a name="l00509"></a><span class="lineno"> 509</span>  _Tp __i;</div><div class="line"><a name="l00510"></a><span class="lineno"> 510</span>  };</div><div class="line"><a name="l00511"></a><span class="lineno"> 511</span> </div><div class="line"><a name="l00512"></a><span class="lineno"> 512</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp></div><div class="line"><a name="l00513"></a><span class="lineno"> 513</span>  <span class="keyword">struct </span>_Mutable_BidirectionalIteratorConcept</div><div class="line"><a name="l00514"></a><span class="lineno"> 514</span>  {</div><div class="line"><a name="l00515"></a><span class="lineno"> 515</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00516"></a><span class="lineno"> 516</span>  __function_requires< _BidirectionalIteratorConcept<_Tp> >();</div><div class="line"><a name="l00517"></a><span class="lineno"> 517</span>  __function_requires< _Mutable_ForwardIteratorConcept<_Tp> >();</div><div class="line"><a name="l00518"></a><span class="lineno"> 518</span>  *__i-- = *__i; <span class="comment">// require postdecrement and assignment</span></div><div class="line"><a name="l00519"></a><span class="lineno"> 519</span>  }</div><div class="line"><a name="l00520"></a><span class="lineno"> 520</span>  _Tp __i;</div><div class="line"><a name="l00521"></a><span class="lineno"> 521</span>  };</div><div class="line"><a name="l00522"></a><span class="lineno"> 522</span> </div><div class="line"><a name="l00523"></a><span class="lineno"> 523</span> </div><div class="line"><a name="l00524"></a><span class="lineno"> 524</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp></div><div class="line"><a name="l00525"></a><span class="lineno"> 525</span>  <span class="keyword">struct </span>_RandomAccessIteratorConcept</div><div class="line"><a name="l00526"></a><span class="lineno"> 526</span>  {</div><div class="line"><a name="l00527"></a><span class="lineno"> 527</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00528"></a><span class="lineno"> 528</span>  __function_requires< _BidirectionalIteratorConcept<_Tp> >();</div><div class="line"><a name="l00529"></a><span class="lineno"> 529</span>  __function_requires< _ComparableConcept<_Tp> >();</div><div class="line"><a name="l00530"></a><span class="lineno"> 530</span>  __function_requires< _ConvertibleConcept<</div><div class="line"><a name="l00531"></a><span class="lineno"> 531</span>  <span class="keyword">typename</span> std::iterator_traits<_Tp>::iterator_category,</div><div class="line"><a name="l00532"></a><span class="lineno"> 532</span>  <a class="code" href="a07668.html">std::random_access_iterator_tag</a>> >();</div><div class="line"><a name="l00533"></a><span class="lineno"> 533</span>  <span class="comment">// ??? We don't use _Ref, are we just checking for "referenceability"?</span></div><div class="line"><a name="l00534"></a><span class="lineno"> 534</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> std::iterator_traits<_Tp>::reference _Ref;</div><div class="line"><a name="l00535"></a><span class="lineno"> 535</span> </div><div class="line"><a name="l00536"></a><span class="lineno"> 536</span>  __i += __n; <span class="comment">// require assignment addition operator</span></div><div class="line"><a name="l00537"></a><span class="lineno"> 537</span>  __i = __i + __n; __i = __n + __i; <span class="comment">// require addition with difference type</span></div><div class="line"><a name="l00538"></a><span class="lineno"> 538</span>  __i -= __n; <span class="comment">// require assignment subtraction op</span></div><div class="line"><a name="l00539"></a><span class="lineno"> 539</span>  __i = __i - __n; <span class="comment">// require subtraction with</span></div><div class="line"><a name="l00540"></a><span class="lineno"> 540</span>  <span class="comment">// difference type</span></div><div class="line"><a name="l00541"></a><span class="lineno"> 541</span>  __n = __i - __j; <span class="comment">// require difference operator</span></div><div class="line"><a name="l00542"></a><span class="lineno"> 542</span>  (void)__i[__n]; <span class="comment">// require element access operator</span></div><div class="line"><a name="l00543"></a><span class="lineno"> 543</span>  }</div><div class="line"><a name="l00544"></a><span class="lineno"> 544</span>  _Tp __a, __b;</div><div class="line"><a name="l00545"></a><span class="lineno"> 545</span>  _Tp __i, __j;</div><div class="line"><a name="l00546"></a><span class="lineno"> 546</span>  <span class="keyword">typename</span> std::iterator_traits<_Tp>::difference_type __n;</div><div class="line"><a name="l00547"></a><span class="lineno"> 547</span>  };</div><div class="line"><a name="l00548"></a><span class="lineno"> 548</span> </div><div class="line"><a name="l00549"></a><span class="lineno"> 549</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Tp></div><div class="line"><a name="l00550"></a><span class="lineno"> 550</span>  <span class="keyword">struct </span>_Mutable_RandomAccessIteratorConcept</div><div class="line"><a name="l00551"></a><span class="lineno"> 551</span>  {</div><div class="line"><a name="l00552"></a><span class="lineno"> 552</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00553"></a><span class="lineno"> 553</span>  __function_requires< _RandomAccessIteratorConcept<_Tp> >();</div><div class="line"><a name="l00554"></a><span class="lineno"> 554</span>  __function_requires< _Mutable_BidirectionalIteratorConcept<_Tp> >();</div><div class="line"><a name="l00555"></a><span class="lineno"> 555</span>  __i[__n] = *__i; <span class="comment">// require element access and assignment</span></div><div class="line"><a name="l00556"></a><span class="lineno"> 556</span>  }</div><div class="line"><a name="l00557"></a><span class="lineno"> 557</span>  _Tp __i;</div><div class="line"><a name="l00558"></a><span class="lineno"> 558</span>  <span class="keyword">typename</span> std::iterator_traits<_Tp>::difference_type __n;</div><div class="line"><a name="l00559"></a><span class="lineno"> 559</span>  };</div><div class="line"><a name="l00560"></a><span class="lineno"> 560</span> </div><div class="line"><a name="l00561"></a><span class="lineno"> 561</span>  <span class="comment">//===========================================================================</span></div><div class="line"><a name="l00562"></a><span class="lineno"> 562</span>  <span class="comment">// Container Concepts</span></div><div class="line"><a name="l00563"></a><span class="lineno"> 563</span> </div><div class="line"><a name="l00564"></a><span class="lineno"> 564</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Container></div><div class="line"><a name="l00565"></a><span class="lineno"> 565</span>  <span class="keyword">struct </span>_ContainerConcept</div><div class="line"><a name="l00566"></a><span class="lineno"> 566</span>  {</div><div class="line"><a name="l00567"></a><span class="lineno"> 567</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Container::value_type _Value_type;</div><div class="line"><a name="l00568"></a><span class="lineno"> 568</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Container::difference_type _Difference_type;</div><div class="line"><a name="l00569"></a><span class="lineno"> 569</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Container::size_type _Size_type;</div><div class="line"><a name="l00570"></a><span class="lineno"> 570</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Container::const_reference _Const_reference;</div><div class="line"><a name="l00571"></a><span class="lineno"> 571</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Container::const_pointer _Const_pointer;</div><div class="line"><a name="l00572"></a><span class="lineno"> 572</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Container::const_iterator _Const_iterator;</div><div class="line"><a name="l00573"></a><span class="lineno"> 573</span> </div><div class="line"><a name="l00574"></a><span class="lineno"> 574</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00575"></a><span class="lineno"> 575</span>  __function_requires< _InputIteratorConcept<_Const_iterator> >();</div><div class="line"><a name="l00576"></a><span class="lineno"> 576</span>  __function_requires< _AssignableConcept<_Container> >();</div><div class="line"><a name="l00577"></a><span class="lineno"> 577</span>  <span class="keyword">const</span> _Container __c;</div><div class="line"><a name="l00578"></a><span class="lineno"> 578</span>  __i = __c.begin();</div><div class="line"><a name="l00579"></a><span class="lineno"> 579</span>  __i = __c.end();</div><div class="line"><a name="l00580"></a><span class="lineno"> 580</span>  __n = __c.size();</div><div class="line"><a name="l00581"></a><span class="lineno"> 581</span>  __n = __c.max_size();</div><div class="line"><a name="l00582"></a><span class="lineno"> 582</span>  __b = __c.empty();</div><div class="line"><a name="l00583"></a><span class="lineno"> 583</span>  }</div><div class="line"><a name="l00584"></a><span class="lineno"> 584</span>  <span class="keywordtype">bool</span> __b;</div><div class="line"><a name="l00585"></a><span class="lineno"> 585</span>  _Const_iterator __i;</div><div class="line"><a name="l00586"></a><span class="lineno"> 586</span>  _Size_type __n;</div><div class="line"><a name="l00587"></a><span class="lineno"> 587</span>  };</div><div class="line"><a name="l00588"></a><span class="lineno"> 588</span> </div><div class="line"><a name="l00589"></a><span class="lineno"> 589</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Container></div><div class="line"><a name="l00590"></a><span class="lineno"> 590</span>  <span class="keyword">struct </span>_Mutable_ContainerConcept</div><div class="line"><a name="l00591"></a><span class="lineno"> 591</span>  {</div><div class="line"><a name="l00592"></a><span class="lineno"> 592</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Container::value_type _Value_type;</div><div class="line"><a name="l00593"></a><span class="lineno"> 593</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Container::reference _Reference;</div><div class="line"><a name="l00594"></a><span class="lineno"> 594</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Container::iterator _Iterator;</div><div class="line"><a name="l00595"></a><span class="lineno"> 595</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Container::pointer _Pointer;</div><div class="line"><a name="l00596"></a><span class="lineno"> 596</span> </div><div class="line"><a name="l00597"></a><span class="lineno"> 597</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00598"></a><span class="lineno"> 598</span>  __function_requires< _ContainerConcept<_Container> >();</div><div class="line"><a name="l00599"></a><span class="lineno"> 599</span>  __function_requires< _AssignableConcept<_Value_type> >();</div><div class="line"><a name="l00600"></a><span class="lineno"> 600</span>  __function_requires< _InputIteratorConcept<_Iterator> >();</div><div class="line"><a name="l00601"></a><span class="lineno"> 601</span> </div><div class="line"><a name="l00602"></a><span class="lineno"> 602</span>  __i = __c.begin();</div><div class="line"><a name="l00603"></a><span class="lineno"> 603</span>  __i = __c.end();</div><div class="line"><a name="l00604"></a><span class="lineno"> 604</span>  __c.swap(__c2);</div><div class="line"><a name="l00605"></a><span class="lineno"> 605</span>  }</div><div class="line"><a name="l00606"></a><span class="lineno"> 606</span>  _Iterator __i;</div><div class="line"><a name="l00607"></a><span class="lineno"> 607</span>  _Container __c, __c2;</div><div class="line"><a name="l00608"></a><span class="lineno"> 608</span>  };</div><div class="line"><a name="l00609"></a><span class="lineno"> 609</span> </div><div class="line"><a name="l00610"></a><span class="lineno"> 610</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _ForwardContainer></div><div class="line"><a name="l00611"></a><span class="lineno"> 611</span>  <span class="keyword">struct </span>_ForwardContainerConcept</div><div class="line"><a name="l00612"></a><span class="lineno"> 612</span>  {</div><div class="line"><a name="l00613"></a><span class="lineno"> 613</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00614"></a><span class="lineno"> 614</span>  __function_requires< _ContainerConcept<_ForwardContainer> >();</div><div class="line"><a name="l00615"></a><span class="lineno"> 615</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _ForwardContainer::const_iterator _Const_iterator;</div><div class="line"><a name="l00616"></a><span class="lineno"> 616</span>  __function_requires< _ForwardIteratorConcept<_Const_iterator> >();</div><div class="line"><a name="l00617"></a><span class="lineno"> 617</span>  }</div><div class="line"><a name="l00618"></a><span class="lineno"> 618</span>  };</div><div class="line"><a name="l00619"></a><span class="lineno"> 619</span> </div><div class="line"><a name="l00620"></a><span class="lineno"> 620</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _ForwardContainer></div><div class="line"><a name="l00621"></a><span class="lineno"> 621</span>  <span class="keyword">struct </span>_Mutable_ForwardContainerConcept</div><div class="line"><a name="l00622"></a><span class="lineno"> 622</span>  {</div><div class="line"><a name="l00623"></a><span class="lineno"> 623</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00624"></a><span class="lineno"> 624</span>  __function_requires< _ForwardContainerConcept<_ForwardContainer> >();</div><div class="line"><a name="l00625"></a><span class="lineno"> 625</span>  __function_requires< _Mutable_ContainerConcept<_ForwardContainer> >();</div><div class="line"><a name="l00626"></a><span class="lineno"> 626</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _ForwardContainer::iterator _Iterator;</div><div class="line"><a name="l00627"></a><span class="lineno"> 627</span>  __function_requires< _Mutable_ForwardIteratorConcept<_Iterator> >();</div><div class="line"><a name="l00628"></a><span class="lineno"> 628</span>  }</div><div class="line"><a name="l00629"></a><span class="lineno"> 629</span>  };</div><div class="line"><a name="l00630"></a><span class="lineno"> 630</span> </div><div class="line"><a name="l00631"></a><span class="lineno"> 631</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _ReversibleContainer></div><div class="line"><a name="l00632"></a><span class="lineno"> 632</span>  <span class="keyword">struct </span>_ReversibleContainerConcept</div><div class="line"><a name="l00633"></a><span class="lineno"> 633</span>  {</div><div class="line"><a name="l00634"></a><span class="lineno"> 634</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _ReversibleContainer::const_iterator _Const_iterator;</div><div class="line"><a name="l00635"></a><span class="lineno"> 635</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _ReversibleContainer::const_reverse_iterator</div><div class="line"><a name="l00636"></a><span class="lineno"> 636</span>  _Const_reverse_iterator;</div><div class="line"><a name="l00637"></a><span class="lineno"> 637</span> </div><div class="line"><a name="l00638"></a><span class="lineno"> 638</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00639"></a><span class="lineno"> 639</span>  __function_requires< _ForwardContainerConcept<_ReversibleContainer> >();</div><div class="line"><a name="l00640"></a><span class="lineno"> 640</span>  __function_requires< _BidirectionalIteratorConcept<_Const_iterator> >();</div><div class="line"><a name="l00641"></a><span class="lineno"> 641</span>  __function_requires<</div><div class="line"><a name="l00642"></a><span class="lineno"> 642</span>  _BidirectionalIteratorConcept<_Const_reverse_iterator> >();</div><div class="line"><a name="l00643"></a><span class="lineno"> 643</span> </div><div class="line"><a name="l00644"></a><span class="lineno"> 644</span>  <span class="keyword">const</span> _ReversibleContainer __c;</div><div class="line"><a name="l00645"></a><span class="lineno"> 645</span>  _Const_reverse_iterator __i = __c.rbegin();</div><div class="line"><a name="l00646"></a><span class="lineno"> 646</span>  __i = __c.rend();</div><div class="line"><a name="l00647"></a><span class="lineno"> 647</span>  }</div><div class="line"><a name="l00648"></a><span class="lineno"> 648</span>  };</div><div class="line"><a name="l00649"></a><span class="lineno"> 649</span> </div><div class="line"><a name="l00650"></a><span class="lineno"> 650</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _ReversibleContainer></div><div class="line"><a name="l00651"></a><span class="lineno"> 651</span>  <span class="keyword">struct </span>_Mutable_ReversibleContainerConcept</div><div class="line"><a name="l00652"></a><span class="lineno"> 652</span>  {</div><div class="line"><a name="l00653"></a><span class="lineno"> 653</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _ReversibleContainer::iterator _Iterator;</div><div class="line"><a name="l00654"></a><span class="lineno"> 654</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _ReversibleContainer::reverse_iterator _Reverse_iterator;</div><div class="line"><a name="l00655"></a><span class="lineno"> 655</span> </div><div class="line"><a name="l00656"></a><span class="lineno"> 656</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00657"></a><span class="lineno"> 657</span>  __function_requires<_ReversibleContainerConcept<_ReversibleContainer> >();</div><div class="line"><a name="l00658"></a><span class="lineno"> 658</span>  __function_requires<</div><div class="line"><a name="l00659"></a><span class="lineno"> 659</span>  _Mutable_ForwardContainerConcept<_ReversibleContainer> >();</div><div class="line"><a name="l00660"></a><span class="lineno"> 660</span>  __function_requires<_Mutable_BidirectionalIteratorConcept<_Iterator> >();</div><div class="line"><a name="l00661"></a><span class="lineno"> 661</span>  __function_requires<</div><div class="line"><a name="l00662"></a><span class="lineno"> 662</span>  _Mutable_BidirectionalIteratorConcept<_Reverse_iterator> >();</div><div class="line"><a name="l00663"></a><span class="lineno"> 663</span> </div><div class="line"><a name="l00664"></a><span class="lineno"> 664</span>  _Reverse_iterator __i = __c.rbegin();</div><div class="line"><a name="l00665"></a><span class="lineno"> 665</span>  __i = __c.rend();</div><div class="line"><a name="l00666"></a><span class="lineno"> 666</span>  }</div><div class="line"><a name="l00667"></a><span class="lineno"> 667</span>  _ReversibleContainer __c;</div><div class="line"><a name="l00668"></a><span class="lineno"> 668</span>  };</div><div class="line"><a name="l00669"></a><span class="lineno"> 669</span> </div><div class="line"><a name="l00670"></a><span class="lineno"> 670</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _RandomAccessContainer></div><div class="line"><a name="l00671"></a><span class="lineno"> 671</span>  <span class="keyword">struct </span>_RandomAccessContainerConcept</div><div class="line"><a name="l00672"></a><span class="lineno"> 672</span>  {</div><div class="line"><a name="l00673"></a><span class="lineno"> 673</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _RandomAccessContainer::size_type _Size_type;</div><div class="line"><a name="l00674"></a><span class="lineno"> 674</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _RandomAccessContainer::const_reference _Const_reference;</div><div class="line"><a name="l00675"></a><span class="lineno"> 675</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _RandomAccessContainer::const_iterator _Const_iterator;</div><div class="line"><a name="l00676"></a><span class="lineno"> 676</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _RandomAccessContainer::const_reverse_iterator</div><div class="line"><a name="l00677"></a><span class="lineno"> 677</span>  _Const_reverse_iterator;</div><div class="line"><a name="l00678"></a><span class="lineno"> 678</span> </div><div class="line"><a name="l00679"></a><span class="lineno"> 679</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00680"></a><span class="lineno"> 680</span>  __function_requires<</div><div class="line"><a name="l00681"></a><span class="lineno"> 681</span>  _ReversibleContainerConcept<_RandomAccessContainer> >();</div><div class="line"><a name="l00682"></a><span class="lineno"> 682</span>  __function_requires< _RandomAccessIteratorConcept<_Const_iterator> >();</div><div class="line"><a name="l00683"></a><span class="lineno"> 683</span>  __function_requires<</div><div class="line"><a name="l00684"></a><span class="lineno"> 684</span>  _RandomAccessIteratorConcept<_Const_reverse_iterator> >();</div><div class="line"><a name="l00685"></a><span class="lineno"> 685</span> </div><div class="line"><a name="l00686"></a><span class="lineno"> 686</span>  <span class="keyword">const</span> _RandomAccessContainer __c;</div><div class="line"><a name="l00687"></a><span class="lineno"> 687</span>  _Const_reference __r _IsUnused = __c[__n];</div><div class="line"><a name="l00688"></a><span class="lineno"> 688</span>  }</div><div class="line"><a name="l00689"></a><span class="lineno"> 689</span>  _Size_type __n;</div><div class="line"><a name="l00690"></a><span class="lineno"> 690</span>  };</div><div class="line"><a name="l00691"></a><span class="lineno"> 691</span> </div><div class="line"><a name="l00692"></a><span class="lineno"> 692</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _RandomAccessContainer></div><div class="line"><a name="l00693"></a><span class="lineno"> 693</span>  <span class="keyword">struct </span>_Mutable_RandomAccessContainerConcept</div><div class="line"><a name="l00694"></a><span class="lineno"> 694</span>  {</div><div class="line"><a name="l00695"></a><span class="lineno"> 695</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _RandomAccessContainer::size_type _Size_type;</div><div class="line"><a name="l00696"></a><span class="lineno"> 696</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _RandomAccessContainer::reference _Reference;</div><div class="line"><a name="l00697"></a><span class="lineno"> 697</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _RandomAccessContainer::iterator _Iterator;</div><div class="line"><a name="l00698"></a><span class="lineno"> 698</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _RandomAccessContainer::reverse_iterator _Reverse_iterator;</div><div class="line"><a name="l00699"></a><span class="lineno"> 699</span> </div><div class="line"><a name="l00700"></a><span class="lineno"> 700</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00701"></a><span class="lineno"> 701</span>  __function_requires<</div><div class="line"><a name="l00702"></a><span class="lineno"> 702</span>  _RandomAccessContainerConcept<_RandomAccessContainer> >();</div><div class="line"><a name="l00703"></a><span class="lineno"> 703</span>  __function_requires<</div><div class="line"><a name="l00704"></a><span class="lineno"> 704</span>  _Mutable_ReversibleContainerConcept<_RandomAccessContainer> >();</div><div class="line"><a name="l00705"></a><span class="lineno"> 705</span>  __function_requires< _Mutable_RandomAccessIteratorConcept<_Iterator> >();</div><div class="line"><a name="l00706"></a><span class="lineno"> 706</span>  __function_requires<</div><div class="line"><a name="l00707"></a><span class="lineno"> 707</span>  _Mutable_RandomAccessIteratorConcept<_Reverse_iterator> >();</div><div class="line"><a name="l00708"></a><span class="lineno"> 708</span> </div><div class="line"><a name="l00709"></a><span class="lineno"> 709</span>  _Reference __r _IsUnused = __c[__i];</div><div class="line"><a name="l00710"></a><span class="lineno"> 710</span>  }</div><div class="line"><a name="l00711"></a><span class="lineno"> 711</span>  _Size_type __i;</div><div class="line"><a name="l00712"></a><span class="lineno"> 712</span>  _RandomAccessContainer __c;</div><div class="line"><a name="l00713"></a><span class="lineno"> 713</span>  };</div><div class="line"><a name="l00714"></a><span class="lineno"> 714</span> </div><div class="line"><a name="l00715"></a><span class="lineno"> 715</span>  <span class="comment">// A Sequence is inherently mutable</span></div><div class="line"><a name="l00716"></a><span class="lineno"> 716</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _Sequence></div><div class="line"><a name="l00717"></a><span class="lineno"> 717</span>  <span class="keyword">struct </span>_SequenceConcept</div><div class="line"><a name="l00718"></a><span class="lineno"> 718</span>  {</div><div class="line"><a name="l00719"></a><span class="lineno"> 719</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Sequence::reference _Reference;</div><div class="line"><a name="l00720"></a><span class="lineno"> 720</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _Sequence::const_reference _Const_reference;</div><div class="line"><a name="l00721"></a><span class="lineno"> 721</span> </div><div class="line"><a name="l00722"></a><span class="lineno"> 722</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00723"></a><span class="lineno"> 723</span>  <span class="comment">// Matt Austern's book puts DefaultConstructible here, the C++</span></div><div class="line"><a name="l00724"></a><span class="lineno"> 724</span>  <span class="comment">// standard places it in Container</span></div><div class="line"><a name="l00725"></a><span class="lineno"> 725</span>  <span class="comment">// function_requires< DefaultConstructible<Sequence> >();</span></div><div class="line"><a name="l00726"></a><span class="lineno"> 726</span>  __function_requires< _Mutable_ForwardContainerConcept<_Sequence> >();</div><div class="line"><a name="l00727"></a><span class="lineno"> 727</span>  __function_requires< _DefaultConstructibleConcept<_Sequence> >();</div><div class="line"><a name="l00728"></a><span class="lineno"> 728</span> </div><div class="line"><a name="l00729"></a><span class="lineno"> 729</span>  _Sequence</div><div class="line"><a name="l00730"></a><span class="lineno"> 730</span>  __c _IsUnused(__n, __t),</div><div class="line"><a name="l00731"></a><span class="lineno"> 731</span>  __c2 _IsUnused(__first, __last);</div><div class="line"><a name="l00732"></a><span class="lineno"> 732</span> </div><div class="line"><a name="l00733"></a><span class="lineno"> 733</span>  __c.insert(__p, __t);</div><div class="line"><a name="l00734"></a><span class="lineno"> 734</span>  __c.insert(__p, __n, __t);</div><div class="line"><a name="l00735"></a><span class="lineno"> 735</span>  __c.insert(__p, __first, __last);</div><div class="line"><a name="l00736"></a><span class="lineno"> 736</span> </div><div class="line"><a name="l00737"></a><span class="lineno"> 737</span>  __c.erase(__p);</div><div class="line"><a name="l00738"></a><span class="lineno"> 738</span>  __c.erase(__p, __q);</div><div class="line"><a name="l00739"></a><span class="lineno"> 739</span> </div><div class="line"><a name="l00740"></a><span class="lineno"> 740</span>  _Reference __r _IsUnused = __c.front();</div><div class="line"><a name="l00741"></a><span class="lineno"> 741</span> </div><div class="line"><a name="l00742"></a><span class="lineno"> 742</span>  __const_constraints(__c);</div><div class="line"><a name="l00743"></a><span class="lineno"> 743</span>  }</div><div class="line"><a name="l00744"></a><span class="lineno"> 744</span>  <span class="keywordtype">void</span> __const_constraints(<span class="keyword">const</span> _Sequence& __c) {</div><div class="line"><a name="l00745"></a><span class="lineno"> 745</span>  _Const_reference __r _IsUnused = __c.front();</div><div class="line"><a name="l00746"></a><span class="lineno"> 746</span>  }</div><div class="line"><a name="l00747"></a><span class="lineno"> 747</span>  <span class="keyword">typename</span> _Sequence::value_type __t;</div><div class="line"><a name="l00748"></a><span class="lineno"> 748</span>  <span class="keyword">typename</span> _Sequence::size_type __n;</div><div class="line"><a name="l00749"></a><span class="lineno"> 749</span>  <span class="keyword">typename</span> _Sequence::value_type *__first, *__last;</div><div class="line"><a name="l00750"></a><span class="lineno"> 750</span>  <span class="keyword">typename</span> _Sequence::iterator __p, __q;</div><div class="line"><a name="l00751"></a><span class="lineno"> 751</span>  };</div><div class="line"><a name="l00752"></a><span class="lineno"> 752</span> </div><div class="line"><a name="l00753"></a><span class="lineno"> 753</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _FrontInsertionSequence></div><div class="line"><a name="l00754"></a><span class="lineno"> 754</span>  <span class="keyword">struct </span>_FrontInsertionSequenceConcept</div><div class="line"><a name="l00755"></a><span class="lineno"> 755</span>  {</div><div class="line"><a name="l00756"></a><span class="lineno"> 756</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00757"></a><span class="lineno"> 757</span>  __function_requires< _SequenceConcept<_FrontInsertionSequence> >();</div><div class="line"><a name="l00758"></a><span class="lineno"> 758</span> </div><div class="line"><a name="l00759"></a><span class="lineno"> 759</span>  __c.push_front(__t);</div><div class="line"><a name="l00760"></a><span class="lineno"> 760</span>  __c.pop_front();</div><div class="line"><a name="l00761"></a><span class="lineno"> 761</span>  }</div><div class="line"><a name="l00762"></a><span class="lineno"> 762</span>  _FrontInsertionSequence __c;</div><div class="line"><a name="l00763"></a><span class="lineno"> 763</span>  <span class="keyword">typename</span> _FrontInsertionSequence::value_type __t;</div><div class="line"><a name="l00764"></a><span class="lineno"> 764</span>  };</div><div class="line"><a name="l00765"></a><span class="lineno"> 765</span> </div><div class="line"><a name="l00766"></a><span class="lineno"> 766</span>  <span class="keyword">template</span> <<span class="keyword">class</span> _BackInsertionSequence></div><div class="line"><a name="l00767"></a><span class="lineno"> 767</span>  <span class="keyword">struct </span>_BackInsertionSequenceConcept</div><div class="line"><a name="l00768"></a><span class="lineno"> 768</span>  {</div><div class="line"><a name="l00769"></a><span class="lineno"> 769</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _BackInsertionSequence::reference _Reference;</div><div class="line"><a name="l00770"></a><span class="lineno"> 770</span>  <span class="keyword">typedef</span> <span class="keyword">typename</span> _BackInsertionSequence::const_reference _Const_reference;</div><div class="line"><a name="l00771"></a><span class="lineno"> 771</span> </div><div class="line"><a name="l00772"></a><span class="lineno"> 772</span>  <span class="keywordtype">void</span> __constraints() {</div><div class="line"><a name="l00773"></a><span class="lineno"> 773</span>  __function_requires< _SequenceConcept<_BackInsertionSequence> >();</div><div class="line"><a name="l00774"></a><span class="lineno"> 774</span> </div><div class="line"><a name="l00775"></a><span class="lineno"> 775</span>  __c.push_back(__t);</div><div class="line"><a name="l00776"></a><span class="lineno"> 776</span>  __c.pop_back();</div><div class="line"><a name="l00777"></a><span class="lineno"> 777</span>  _Reference __r _IsUnused = __c.back();</div><div class="line"><a name="l00778"></a><span class="lineno"> 778</span>  }</div><div class="line"><a name="l00779"></a><span class="lineno"> 779</span>  <span class="keywordtype">void</span> __const_constraints(<span class="keyword">const</span> _BackInsertionSequence& __c) {</div><div class="line"><a name="l00780"></a><span class="lineno"> 780</span>  _Const_reference __r _IsUnused = __c.back();</div><div class="line"><a name="l00781"></a><span class="lineno"> 781</span>  };</div><div class="line"><a name="l00782"></a><span class="lineno"> 782</span>  _BackInsertionSequence __c;</div><div class="line"><a name="l00783"></a><span class="lineno"> 783</span>  <span class="keyword">typename</span> _BackInsertionSequence::value_type __t;</div><div class="line"><a name="l00784"></a><span class="lineno"> 784</span>  };</div><div class="line"><a name="l00785"></a><span class="lineno"> 785</span> </div><div class="line"><a name="l00786"></a><span class="lineno"> 786</span> _GLIBCXX_END_NAMESPACE_VERSION</div><div class="line"><a name="l00787"></a><span class="lineno"> 787</span> } <span class="comment">// namespace</span></div><div class="line"><a name="l00788"></a><span class="lineno"> 788</span> </div><div class="line"><a name="l00789"></a><span class="lineno"> 789</span> <span class="preprocessor">#pragma GCC diagnostic pop</span></div><div class="line"><a name="l00790"></a><span class="lineno"> 790</span> <span class="preprocessor">#undef _IsUnused</span></div><div class="line"><a name="l00791"></a><span class="lineno"> 791</span> </div><div class="line"><a name="l00792"></a><span class="lineno"> 792</span> <span class="preprocessor">#endif // _GLIBCXX_BOOST_CONCEPT_CHECK</span></div><div class="line"><a name="l00793"></a><span class="lineno"> 793</span> </div><div class="line"><a name="l00794"></a><span class="lineno"> 794</span> </div><div class="ttc" id="a00656_html"><div class="ttname"><a href="a00656.html">c++config.h</a></div></div> <div class="ttc" id="a01544_html"><div class="ttname"><a href="a01544.html">__gnu_cxx</a></div><div class="ttdoc">GNU extensions for public use.</div></div> <div class="ttc" id="a07652_html"><div class="ttname"><a href="a07652.html">std::input_iterator_tag</a></div><div class="ttdoc">Marking input iterators.</div><div class="ttdef"><b>Definition:</b> <a href="a00554_source.html#l00089">stl_iterator_base_types.h:89</a></div></div> <div class="ttc" id="a07660_html"><div class="ttname"><a href="a07660.html">std::forward_iterator_tag</a></div><div class="ttdoc">Forward iterators support a superset of input iterator operations.</div><div class="ttdef"><b>Definition:</b> <a href="a00554_source.html#l00095">stl_iterator_base_types.h:95</a></div></div> <div class="ttc" id="a00554_html"><div class="ttname"><a href="a00554.html">stl_iterator_base_types.h</a></div></div> <div class="ttc" id="a07668_html"><div class="ttname"><a href="a07668.html">std::random_access_iterator_tag</a></div><div class="ttdoc">Random-access iterators support a superset of bidirectional iterator operations.</div><div class="ttdef"><b>Definition:</b> <a href="a00554_source.html#l00103">stl_iterator_base_types.h:103</a></div></div> <div class="ttc" id="a07664_html"><div class="ttname"><a href="a07664.html">std::bidirectional_iterator_tag</a></div><div class="ttdoc">Bidirectional iterators support a superset of forward iterator operations.</div><div class="ttdef"><b>Definition:</b> <a href="a00554_source.html#l00099">stl_iterator_base_types.h:99</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_3a83f109ff04170a1f8448445d1bdcba.html">include</a></li><li class="navelem"><a class="el" href="dir_599c955538774c0249d4ddd97c0a9ae8.html">bits</a></li><li class="navelem"><a class="el" href="a00296.html">boost_concept_check.h</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>