<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> <meta http-equiv="X-UA-Compatible" content="IE=9"/> <meta name="generator" content="Doxygen 1.8.3"/> <title>libstdc++: iterator.hpp Source File</title> <link href="tabs.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="jquery.js"></script> <script type="text/javascript" src="dynsections.js"></script> <link href="navtree.css" rel="stylesheet" type="text/css"/> <script type="text/javascript" src="resize.js"></script> <script type="text/javascript" src="navtree.js"></script> <script type="text/javascript"> $(document).ready(initResizable); $(window).load(resizeHeight); </script> <link href="doxygen.css" rel="stylesheet" type="text/css" /> </head> <body> <div id="top"><!-- do not remove this div, it is closed by doxygen! --> <div id="titlearea"> <table cellspacing="0" cellpadding="0"> <tbody> <tr style="height: 56px;"> <td style="padding-left: 0.5em;"> <div id="projectname">libstdc++ </div> </td> </tr> </tbody> </table> </div> <!-- end header part --> <!-- Generated by Doxygen 1.8.3 --> </div><!-- top --> <div id="side-nav" class="ui-resizable side-nav-resizable"> <div id="nav-tree"> <div id="nav-tree-contents"> <div id="nav-sync" class="sync"></div> </div> </div> <div id="splitbar" style="-moz-user-select:none;" class="ui-resizable-handle"> </div> </div> <script type="text/javascript"> $(document).ready(function(){initNavTree('a01268_source.html','');}); </script> <div id="doc-content"> <div class="header"> <div class="headertitle"> <div class="title">iterator.hpp</div> </div> </div><!--header--> <div class="contents"> <a href="a01268.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) 2005, 2006, 2009, 2010 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 terms</span></div> <div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment">// of the GNU General Public License as published by the Free Software</span></div> <div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment">// Foundation; either version 3, or (at your option) any later</span></div> <div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment">// 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, but</span></div> <div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">// 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 GNU</span></div> <div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">// 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">// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.</span></div> <div class="line"><a name="l00026"></a><span class="lineno"> 26</span> </div> <div class="line"><a name="l00027"></a><span class="lineno"> 27</span> <span class="comment">// Permission to use, copy, modify, sell, and distribute this software</span></div> <div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="comment">// is hereby granted without fee, provided that the above copyright</span></div> <div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="comment">// notice appears in all copies, and that both that copyright notice</span></div> <div class="line"><a name="l00030"></a><span class="lineno"> 30</span> <span class="comment">// and this permission notice appear in supporting documentation. None</span></div> <div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="comment">// of the above authors, nor IBM Haifa Research Laboratories, make any</span></div> <div class="line"><a name="l00032"></a><span class="lineno"> 32</span> <span class="comment">// representation about the suitability of this software for any</span></div> <div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="comment">// purpose. It is provided "as is" without express or implied</span></div> <div class="line"><a name="l00034"></a><span class="lineno"> 34</span> <span class="comment">// warranty.</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> <span class="comment">/**</span></div> <div class="line"><a name="l00037"></a><span class="lineno"> 37</span> <span class="comment"> * @file iterator.hpp</span></div> <div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> * Contains an iterator_ class used for ranging over the elements of the</span></div> <div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> * table.</span></div> <div class="line"><a name="l00040"></a><span class="lineno"> 40</span> <span class="comment"> */</span></div> <div class="line"><a name="l00041"></a><span class="lineno"> 41</span> <span class="comment"></span></div> <div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="comment">/// Range-type iterator.</span></div> <div class="line"><a name="l00043"></a><span class="lineno"><a class="code" href="a00454.html"> 43</a></span> <span class="comment"></span><span class="keyword">class </span><a class="code" href="a00454.html" title="Range-type iterator.">iterator_</a></div> <div class="line"><a name="l00044"></a><span class="lineno"> 44</span> : <span class="keyword">public</span> <a class="code" href="a00437.html" title="Const range-type iterator.">const_iterator_</a></div> <div class="line"><a name="l00045"></a><span class="lineno"> 45</span> {</div> <div class="line"><a name="l00046"></a><span class="lineno"> 46</span> <span class="keyword">public</span>:<span class="comment"></span></div> <div class="line"><a name="l00047"></a><span class="lineno"> 47</span> <span class="comment"> /// Category.</span></div> <div class="line"><a name="l00048"></a><span class="lineno"><a class="code" href="a00454.html#a304ce8f2d8163bcd83c095521b6fa1b1"> 48</a></span> <span class="comment"></span> <span class="keyword">typedef</span> <a class="code" href="a00665.html" title="Forward iterators support a superset of input iterator operations.">std::forward_iterator_tag</a> <a class="code" href="a00454.html#a304ce8f2d8163bcd83c095521b6fa1b1" title="Category.">iterator_category</a>;</div> <div class="line"><a name="l00049"></a><span class="lineno"> 49</span> <span class="comment"></span></div> <div class="line"><a name="l00050"></a><span class="lineno"> 50</span> <span class="comment"> /// Difference type.</span></div> <div class="line"><a name="l00051"></a><span class="lineno"><a class="code" href="a00454.html#a8fcb57cdcee0a5668a3aae97bc159ff6"> 51</a></span> <span class="comment"></span> <span class="keyword">typedef</span> <span class="keyword">typename</span> _Alloc::difference_type <a class="code" href="a00454.html#a8fcb57cdcee0a5668a3aae97bc159ff6" title="Difference type.">difference_type</a>;</div> <div class="line"><a name="l00052"></a><span class="lineno"> 52</span> <span class="comment"></span></div> <div class="line"><a name="l00053"></a><span class="lineno"> 53</span> <span class="comment"> /// Iterator's value type.</span></div> <div class="line"><a name="l00054"></a><span class="lineno"><a class="code" href="a00454.html#a68da9e97879135d05aa37f27e2c826c4"> 54</a></span> <span class="comment"></span> <span class="keyword">typedef</span> value_type_ <a class="code" href="a00454.html#a68da9e97879135d05aa37f27e2c826c4" title="Iterator's value type.">value_type</a>;</div> <div class="line"><a name="l00055"></a><span class="lineno"> 55</span> <span class="comment"></span></div> <div class="line"><a name="l00056"></a><span class="lineno"> 56</span> <span class="comment"> /// Iterator's pointer type.</span></div> <div class="line"><a name="l00057"></a><span class="lineno"><a class="code" href="a00454.html#a5e8e32e609074706bc1124c6f143dcee"> 57</a></span> <span class="comment"></span> <span class="keyword">typedef</span> pointer_ <a class="code" href="a00454.html#a5e8e32e609074706bc1124c6f143dcee" title="Iterator's pointer type.">pointer</a>;</div> <div class="line"><a name="l00058"></a><span class="lineno"> 58</span> <span class="comment"></span></div> <div class="line"><a name="l00059"></a><span class="lineno"> 59</span> <span class="comment"> /// Iterator's const pointer type.</span></div> <div class="line"><a name="l00060"></a><span class="lineno"><a class="code" href="a00454.html#a5b919c25bd3e9c458e1023bb775c41e4"> 60</a></span> <span class="comment"></span> <span class="keyword">typedef</span> const_pointer_ <a class="code" href="a00454.html#a5b919c25bd3e9c458e1023bb775c41e4" title="Iterator's const pointer type.">const_pointer</a>;</div> <div class="line"><a name="l00061"></a><span class="lineno"> 61</span> <span class="comment"></span></div> <div class="line"><a name="l00062"></a><span class="lineno"> 62</span> <span class="comment"> /// Iterator's reference type.</span></div> <div class="line"><a name="l00063"></a><span class="lineno"><a class="code" href="a00454.html#a44c68d704c42fe7722c558da7f2072c8"> 63</a></span> <span class="comment"></span> <span class="keyword">typedef</span> reference_ <a class="code" href="a00454.html#a44c68d704c42fe7722c558da7f2072c8" title="Iterator's reference type.">reference</a>;</div> <div class="line"><a name="l00064"></a><span class="lineno"> 64</span> <span class="comment"></span></div> <div class="line"><a name="l00065"></a><span class="lineno"> 65</span> <span class="comment"> /// Iterator's const reference type.</span></div> <div class="line"><a name="l00066"></a><span class="lineno"><a class="code" href="a00454.html#a6697087226a2ded72ae3aa5448c4a330"> 66</a></span> <span class="comment"></span> <span class="keyword">typedef</span> const_reference_ <a class="code" href="a00454.html#a6697087226a2ded72ae3aa5448c4a330" title="Iterator's const reference type.">const_reference</a>;</div> <div class="line"><a name="l00067"></a><span class="lineno"> 67</span> <span class="comment"></span></div> <div class="line"><a name="l00068"></a><span class="lineno"> 68</span> <span class="comment"> /// Default constructor.</span></div> <div class="line"><a name="l00069"></a><span class="lineno"> 69</span> <span class="comment"></span> <span class="keyword">inline</span></div> <div class="line"><a name="l00070"></a><span class="lineno"><a class="code" href="a00454.html#a53fb6c07d7d3153087d79ca22c1a8ec0"> 70</a></span>  <a class="code" href="a00454.html#a53fb6c07d7d3153087d79ca22c1a8ec0" title="Default constructor.">iterator_</a>()</div> <div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  : <a class="code" href="a00437.html" title="Const range-type iterator.">const_iterator_</a>(0, PB_DS_GEN_POS(), 0) { }</div> <div class="line"><a name="l00072"></a><span class="lineno"> 72</span> <span class="comment"></span></div> <div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="comment"> /// Conversion to a point-type iterator.</span></div> <div class="line"><a name="l00074"></a><span class="lineno"> 74</span> <span class="comment"></span> <span class="keyword">inline</span></div> <div class="line"><a name="l00075"></a><span class="lineno"><a class="code" href="a00454.html#aa4c276572f3681c975c496b45962abdd"> 75</a></span>  <span class="keyword">operator</span> <a class="code" href="a00462.html" title="Find type iterator.">point_iterator_</a>()</div> <div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  { <span class="keywordflow">return</span> <a class="code" href="a00462.html" title="Find type iterator.">point_iterator_</a>(const_cast<pointer>(const_iterator_::m_p_value)); }</div> <div class="line"><a name="l00077"></a><span class="lineno"> 77</span> <span class="comment"></span></div> <div class="line"><a name="l00078"></a><span class="lineno"> 78</span> <span class="comment"> /// Conversion to a point-type iterator.</span></div> <div class="line"><a name="l00079"></a><span class="lineno"> 79</span> <span class="comment"></span> <span class="keyword">inline</span></div> <div class="line"><a name="l00080"></a><span class="lineno"><a class="code" href="a00454.html#a8026ca9eaec4917fc905277db3accd04"> 80</a></span>  <span class="keyword">operator</span> <span class="keyword">const</span> <a class="code" href="a00462.html" title="Find type iterator.">point_iterator_</a>()<span class="keyword"> const</span></div> <div class="line"><a name="l00081"></a><span class="lineno"> 81</span> <span class="keyword"> </span>{ <span class="keywordflow">return</span> <a class="code" href="a00462.html" title="Find type iterator.">point_iterator_</a>(const_cast<pointer>(const_iterator_::m_p_value)); }</div> <div class="line"><a name="l00082"></a><span class="lineno"> 82</span> <span class="comment"></span></div> <div class="line"><a name="l00083"></a><span class="lineno"> 83</span> <span class="comment"> /// Access.</span></div> <div class="line"><a name="l00084"></a><span class="lineno"> 84</span> <span class="comment"></span> <a class="code" href="a00454.html#a5e8e32e609074706bc1124c6f143dcee" title="Iterator's pointer type.">pointer</a></div> <div class="line"><a name="l00085"></a><span class="lineno"><a class="code" href="a00454.html#ac9dbe2362a4088438c676ae1632ad1a4"> 85</a></span>  <a class="code" href="a00454.html#ac9dbe2362a4088438c676ae1632ad1a4" title="Access.">operator-></a>()<span class="keyword"> const</span></div> <div class="line"><a name="l00086"></a><span class="lineno"> 86</span> <span class="keyword"> </span>{</div> <div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  _GLIBCXX_DEBUG_ASSERT(base_type::m_p_value != 0);</div> <div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">return</span> (const_cast<pointer>(base_type::m_p_value));</div> <div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  }</div> <div class="line"><a name="l00090"></a><span class="lineno"> 90</span> <span class="comment"></span></div> <div class="line"><a name="l00091"></a><span class="lineno"> 91</span> <span class="comment"> /// Access.</span></div> <div class="line"><a name="l00092"></a><span class="lineno"> 92</span> <span class="comment"></span> <a class="code" href="a00454.html#a44c68d704c42fe7722c558da7f2072c8" title="Iterator's reference type.">reference</a></div> <div class="line"><a name="l00093"></a><span class="lineno"><a class="code" href="a00454.html#a29f3a8bd889122b3eaced286217b7a7b"> 93</a></span>  <a class="code" href="a00454.html#a29f3a8bd889122b3eaced286217b7a7b" title="Access.">operator*</a>()<span class="keyword"> const</span></div> <div class="line"><a name="l00094"></a><span class="lineno"> 94</span> <span class="keyword"> </span>{</div> <div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  _GLIBCXX_DEBUG_ASSERT(base_type::m_p_value != 0);</div> <div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  <span class="keywordflow">return</span> (const_cast<reference>(*base_type::m_p_value));</div> <div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  }</div> <div class="line"><a name="l00098"></a><span class="lineno"> 98</span> <span class="comment"></span></div> <div class="line"><a name="l00099"></a><span class="lineno"> 99</span> <span class="comment"> /// Increments.</span></div> <div class="line"><a name="l00100"></a><span class="lineno"> 100</span> <span class="comment"></span> <a class="code" href="a00454.html" title="Range-type iterator.">iterator_</a>&</div> <div class="line"><a name="l00101"></a><span class="lineno"><a class="code" href="a00454.html#ae3ce4e8d7eab45011fa177454aecf378"> 101</a></span>  <a class="code" href="a00454.html#ae3ce4e8d7eab45011fa177454aecf378" title="Increments.">operator++</a>()</div> <div class="line"><a name="l00102"></a><span class="lineno"> 102</span>  {</div> <div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <a class="code" href="a00437.html#aa90bbed0309049118ba04e647ac91d66">base_type::m_p_tbl</a>->inc_it_state(base_type::m_p_value, base_type::m_pos);</div> <div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  <span class="keywordflow">return</span> *<span class="keyword">this</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="comment"></span></div> <div class="line"><a name="l00107"></a><span class="lineno"> 107</span> <span class="comment"> /// Increments.</span></div> <div class="line"><a name="l00108"></a><span class="lineno"> 108</span> <span class="comment"></span> <a class="code" href="a00454.html" title="Range-type iterator.">iterator_</a></div> <div class="line"><a name="l00109"></a><span class="lineno"><a class="code" href="a00454.html#ad5a05ab49fce8dd1c5eb8b807f0d84f5"> 109</a></span>  <a class="code" href="a00454.html#ae3ce4e8d7eab45011fa177454aecf378" title="Increments.">operator++</a>(<span class="keywordtype">int</span>)</div> <div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  {</div> <div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  <a class="code" href="a00454.html" title="Range-type iterator.">iterator_</a> ret =* <span class="keyword">this</span>;</div> <div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <a class="code" href="a00437.html#aa90bbed0309049118ba04e647ac91d66">base_type::m_p_tbl</a>->inc_it_state(base_type::m_p_value, base_type::m_pos);</div> <div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="keywordflow">return</span> ret;</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> </div> <div class="line"><a name="l00116"></a><span class="lineno"> 116</span> <span class="keyword">protected</span>:</div> <div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  <span class="keyword">typedef</span> <a class="code" href="a00437.html" title="Const range-type iterator.">const_iterator_</a> base_type;</div> <div class="line"><a name="l00118"></a><span class="lineno"> 118</span> <span class="comment"></span></div> <div class="line"><a name="l00119"></a><span class="lineno"> 119</span> <span class="comment"> /**</span></div> <div class="line"><a name="l00120"></a><span class="lineno"> 120</span> <span class="comment"> * Constructor used by the table to initiate the generalized</span></div> <div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="comment"> * pointer and position (e.g., this is called from within a find()</span></div> <div class="line"><a name="l00122"></a><span class="lineno"> 122</span> <span class="comment"> * of a table.</span></div> <div class="line"><a name="l00123"></a><span class="lineno"> 123</span> <span class="comment"> * */</span></div> <div class="line"><a name="l00124"></a><span class="lineno"> 124</span>  <span class="keyword">inline</span></div> <div class="line"><a name="l00125"></a><span class="lineno"><a class="code" href="a00454.html#a43fbe36e902b02465f9cd20a69cbd9a4"> 125</a></span>  <a class="code" href="a00454.html#a53fb6c07d7d3153087d79ca22c1a8ec0" title="Default constructor.">iterator_</a>(<a class="code" href="a00437.html#a138b64767ee1c612debd902ae852f055" title="Iterator's pointer type.">pointer</a> p_value, PB_DS_GEN_POS pos, PB_DS_CLASS_C_DEC* p_tbl)</div> <div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  : <a class="code" href="a00437.html" title="Const range-type iterator.">const_iterator_</a>(p_value, pos, p_tbl)</div> <div class="line"><a name="l00127"></a><span class="lineno"> 127</span>  { }</div> <div class="line"><a name="l00128"></a><span class="lineno"> 128</span> </div> <div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  <span class="keyword">friend</span> <span class="keyword">class </span>PB_DS_CLASS_C_DEC;</div> <div class="line"><a name="l00130"></a><span class="lineno"> 130</span> };</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_9fd2c24bcafa2f71ff52c79e6ae82b6c.html">include</a></li><li class="navelem"><a class="el" href="dir_e51975699086833cfe90d160770f5392.html">ext</a></li><li class="navelem"><a class="el" href="dir_da28a64a1ef7c57199de0c285d0328f8.html">pb_ds</a></li><li class="navelem"><a class="el" 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