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<div class="title">bin_search_tree_/rotate_fn_imps.hpp</div> </div>
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<a href="a17088.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) 2005-2018 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 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 bin_search_tree_/rotate_fn_imps.hpp</span></div><div class="line"><a name="l00038"></a><span class="lineno"> 38</span> <span class="comment"> * Contains imps for rotating nodes.</span></div><div class="line"><a name="l00039"></a><span class="lineno"> 39</span> <span class="comment"> */</span></div><div class="line"><a name="l00040"></a><span class="lineno"> 40</span> </div><div class="line"><a name="l00041"></a><span class="lineno"> 41</span> PB_DS_CLASS_T_DEC</div><div class="line"><a name="l00042"></a><span class="lineno"> 42</span> <span class="keyword">inline</span> <span class="keywordtype">void</span></div><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> PB_DS_CLASS_C_DEC::</div><div class="line"><a name="l00044"></a><span class="lineno"> 44</span> rotate_left(node_pointer p_x)</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>  node_pointer p_y = p_x->m_p_right;</div><div class="line"><a name="l00047"></a><span class="lineno"> 47</span> </div><div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  p_x->m_p_right = p_y->m_p_left;</div><div class="line"><a name="l00049"></a><span class="lineno"> 49</span> </div><div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="keywordflow">if</span> (p_y->m_p_left != 0)</div><div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  p_y->m_p_left->m_p_parent = p_x;</div><div class="line"><a name="l00052"></a><span class="lineno"> 52</span> </div><div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  p_y->m_p_parent = p_x->m_p_parent;</div><div class="line"><a name="l00054"></a><span class="lineno"> 54</span> </div><div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  <span class="keywordflow">if</span> (p_x == m_p_head->m_p_parent)</div><div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  m_p_head->m_p_parent = p_y;</div><div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (p_x == p_x->m_p_parent->m_p_left)</div><div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  p_x->m_p_parent->m_p_left = p_y;</div><div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  p_x->m_p_parent->m_p_right = p_y;</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>  p_y->m_p_left = p_x;</div><div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  p_x->m_p_parent = p_y;</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>  PB_DS_ASSERT_NODE_CONSISTENT(p_x)</div><div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  PB_DS_ASSERT_NODE_CONSISTENT(p_y)</div><div class="line"><a name="l00067"></a><span class="lineno"> 67</span> </div><div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  apply_update(p_x, (node_update* )<span class="keyword">this</span>);</div><div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  apply_update(p_x->m_p_parent, (node_update* )<span class="keyword">this</span>);</div><div class="line"><a name="l00070"></a><span class="lineno"> 70</span> }</div><div class="line"><a name="l00071"></a><span class="lineno"> 71</span> </div><div class="line"><a name="l00072"></a><span class="lineno"> 72</span> PB_DS_CLASS_T_DEC</div><div class="line"><a name="l00073"></a><span class="lineno"> 73</span> <span class="keyword">inline</span> <span class="keywordtype">void</span></div><div class="line"><a name="l00074"></a><span class="lineno"> 74</span> PB_DS_CLASS_C_DEC::</div><div class="line"><a name="l00075"></a><span class="lineno"> 75</span> rotate_right(node_pointer p_x)</div><div class="line"><a name="l00076"></a><span class="lineno"> 76</span> {</div><div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  node_pointer p_y = p_x->m_p_left;</div><div class="line"><a name="l00078"></a><span class="lineno"> 78</span> </div><div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  p_x->m_p_left = p_y->m_p_right;</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="keywordflow">if</span> (p_y->m_p_right != 0)</div><div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  p_y->m_p_right->m_p_parent = p_x;</div><div class="line"><a name="l00083"></a><span class="lineno"> 83</span> </div><div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  p_y->m_p_parent = p_x->m_p_parent;</div><div class="line"><a name="l00085"></a><span class="lineno"> 85</span> </div><div class="line"><a name="l00086"></a><span class="lineno"> 86</span>  <span class="keywordflow">if</span> (p_x == m_p_head->m_p_parent)</div><div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  m_p_head->m_p_parent = p_y;</div><div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  <span class="keywordflow">else</span> <span class="keywordflow">if</span> (p_x == p_x->m_p_parent->m_p_right)</div><div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  p_x->m_p_parent->m_p_right = p_y;</div><div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  p_x->m_p_parent->m_p_left = p_y;</div><div class="line"><a name="l00092"></a><span class="lineno"> 92</span> </div><div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  p_y->m_p_right = p_x;</div><div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  p_x->m_p_parent = p_y;</div><div class="line"><a name="l00095"></a><span class="lineno"> 95</span> </div><div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  PB_DS_ASSERT_NODE_CONSISTENT(p_x)</div><div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  PB_DS_ASSERT_NODE_CONSISTENT(p_y)</div><div class="line"><a name="l00098"></a><span class="lineno"> 98</span> </div><div class="line"><a name="l00099"></a><span class="lineno"> 99</span>  apply_update(p_x, (node_update* )<span class="keyword">this</span>);</div><div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  apply_update(p_x->m_p_parent, (node_update* )<span class="keyword">this</span>);</div><div class="line"><a name="l00101"></a><span class="lineno"> 101</span> }</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> PB_DS_CLASS_T_DEC</div><div class="line"><a name="l00104"></a><span class="lineno"> 104</span> <span class="keyword">inline</span> <span class="keywordtype">void</span></div><div class="line"><a name="l00105"></a><span class="lineno"> 105</span> PB_DS_CLASS_C_DEC::</div><div class="line"><a name="l00106"></a><span class="lineno"> 106</span> rotate_parent(node_pointer p_nd)</div><div class="line"><a name="l00107"></a><span class="lineno"> 107</span> {</div><div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  node_pointer p_parent = p_nd->m_p_parent;</div><div class="line"><a name="l00109"></a><span class="lineno"> 109</span> </div><div class="line"><a name="l00110"></a><span class="lineno"> 110</span>  <span class="keywordflow">if</span> (p_nd == p_parent->m_p_left)</div><div class="line"><a name="l00111"></a><span class="lineno"> 111</span>  rotate_right(p_parent);</div><div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="keywordflow">else</span></div><div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  rotate_left(p_parent);</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>  _GLIBCXX_DEBUG_ASSERT(p_parent->m_p_parent = p_nd);</div><div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  _GLIBCXX_DEBUG_ASSERT(p_nd->m_p_left == p_parent ||</div><div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  p_nd->m_p_right == p_parent);</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> PB_DS_CLASS_T_DEC</div><div class="line"><a name="l00121"></a><span class="lineno"> 121</span> <span class="keyword">inline</span> <span class="keywordtype">void</span></div><div class="line"><a name="l00122"></a><span class="lineno"> 122</span> PB_DS_CLASS_C_DEC::</div><div class="line"><a name="l00123"></a><span class="lineno"> 123</span> apply_update(node_pointer <span class="comment">/*p_nd*/</span>, null_node_update_pointer <span class="comment">/*p_update*/</span>)</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> PB_DS_CLASS_T_DEC</div><div class="line"><a name="l00127"></a><span class="lineno"> 127</span> <span class="keyword">template</span><<span class="keyword">typename</span> Node_Update_></div><div class="line"><a name="l00128"></a><span class="lineno"> 128</span> <span class="keyword">inline</span> <span class="keywordtype">void</span></div><div class="line"><a name="l00129"></a><span class="lineno"> 129</span> PB_DS_CLASS_C_DEC::</div><div class="line"><a name="l00130"></a><span class="lineno"> 130</span> apply_update(node_pointer p_nd, Node_Update_* <span class="comment">/*p_update*/</span>)</div><div class="line"><a name="l00131"></a><span class="lineno"> 131</span> {</div><div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  node_update::operator()(node_iterator(p_nd),</div><div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  node_const_iterator(static_cast<node_pointer>(0)));</div><div class="line"><a name="l00134"></a><span class="lineno"> 134</span> }</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> PB_DS_CLASS_T_DEC</div><div class="line"><a name="l00137"></a><span class="lineno"> 137</span> <span class="keyword">template</span><<span class="keyword">typename</span> Node_Update_></div><div class="line"><a name="l00138"></a><span class="lineno"> 138</span> <span class="keyword">inline</span> <span class="keywordtype">void</span></div><div class="line"><a name="l00139"></a><span class="lineno"> 139</span> PB_DS_CLASS_C_DEC::</div><div class="line"><a name="l00140"></a><span class="lineno"> 140</span> update_to_top(node_pointer p_nd, Node_Update_* p_update)</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="keywordflow">while</span> (p_nd != m_p_head)</div><div class="line"><a name="l00143"></a><span class="lineno"> 143</span>  {</div><div class="line"><a name="l00144"></a><span class="lineno"> 144</span>  apply_update(p_nd, p_update);</div><div class="line"><a name="l00145"></a><span class="lineno"> 145</span> </div><div class="line"><a name="l00146"></a><span class="lineno"> 146</span>  p_nd = p_nd->m_p_parent;</div><div class="line"><a name="l00147"></a><span class="lineno"> 147</span>  }</div><div class="line"><a name="l00148"></a><span class="lineno"> 148</span> }</div><div class="line"><a name="l00149"></a><span class="lineno"> 149</span> </div><div class="line"><a name="l00150"></a><span class="lineno"> 150</span> PB_DS_CLASS_T_DEC</div><div class="line"><a name="l00151"></a><span class="lineno"> 151</span> <span class="keyword">inline</span> <span class="keywordtype">void</span></div><div class="line"><a name="l00152"></a><span class="lineno"> 152</span> PB_DS_CLASS_C_DEC::</div><div class="line"><a name="l00153"></a><span class="lineno"> 153</span> update_to_top(node_pointer <span class="comment">/*p_nd*/</span>, null_node_update_pointer <span class="comment">/*p_update*/</span>)</div><div class="line"><a name="l00154"></a><span class="lineno"> 154</span> { }</div><div class="line"><a name="l00155"></a><span class="lineno"> 155</span> </div></div><!-- fragment --></div><!-- contents -->
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