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<div class="title">FixedBitSet.cs</div> </div>
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<a href="_fixed_bit_set_8cs.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno"> 1</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span>&#160;<span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one or more</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span>&#160;<span class="comment"> * contributor license agreements. See the NOTICE file distributed with</span></div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span>&#160;<span class="comment"> * this work for additional information regarding copyright ownership.</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span>&#160;<span class="comment"> * The ASF licenses this file to You under the Apache License, Version 2.0</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span>&#160;<span class="comment"> * (the &quot;License&quot;); you may not use this file except in compliance with</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span>&#160;<span class="comment"> * the License. You may obtain a copy of the License at</span></div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span>&#160;<span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span>&#160;<span class="comment"> * Unless required by applicable law or agreed to in writing, software</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span>&#160;<span class="comment"> * distributed under the License is distributed on an &quot;AS IS&quot; BASIS,</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span>&#160;<span class="comment"> * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span>&#160;<span class="comment"> * See the License for the specific language governing permissions and</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span>&#160;<span class="comment"> * limitations under the License.</span></div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span>&#160;</div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span>&#160;<span class="keyword">using</span> System;</div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span>&#160;<span class="keyword">using</span> System.Collections;</div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span>&#160;<span class="keyword">using</span> Lucene.Net.Search;</div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span>&#160;<span class="keyword">using</span> Lucene.Net.Util;</div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span>&#160;</div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span>&#160;<span class="keyword">namespace </span>Lucene.Net.Spatial.Util</div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span>&#160;{</div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span>&#160; <span class="comment">/* BitSet of fixed length (numBits), backed by accessible</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span>&#160;<span class="comment"> * ({@link #getBits}) long[], accessed with an int index,</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>&#160;<span class="comment"> * implementing Bits and DocIdSet. Unlike {@link</span></div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span>&#160;<span class="comment"> * OpenBitSet} this bit set does not auto-expand, cannot</span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span>&#160;<span class="comment"> * handle long index, and does not have fastXX/XX variants</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>&#160;<span class="comment"> * (just X).</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>&#160;<span class="comment"> * @lucene.internal</span></div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span>&#160;<span class="comment"> **/</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html"> 34</a></span>&#160; <span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html">FixedBitSet</a> : <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_doc_id_set.html" title="A DocIdSet contains a set of doc ids. Implementing classes must only implement Iterator to provide ac...">DocIdSet</a>, <a class="code" href="interface_lucene_1_1_net_1_1_spatial_1_1_util_1_1_i_bits.html" title="Interface for Bitset-like structures. ">IBits</a></div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span>&#160; {</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>&#160; <span class="keyword">private</span> readonly BitArray bits;</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>&#160;</div>
<div class="line"><a name="l00043"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#af353c4afdcb1225ca499841479aaeaa7"> 43</a></span>&#160; <span class="keyword">public</span> <span class="keyword">static</span> <span class="keywordtype">int</span> bits2words(<span class="keywordtype">int</span> numBits)</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>&#160; {</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>&#160; var numLong = (int)((uint)numBits &gt;&gt; 6);</div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>&#160; <span class="keywordflow">if</span> ((numBits &amp; 63) != 0)</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>&#160; {</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>&#160; numLong++;</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>&#160; }</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>&#160; <span class="keywordflow">return</span> numLong;</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>&#160; }</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>&#160;</div>
<div class="line"><a name="l00053"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#a2d49fdfae31486daefa41784a5c4d19a"> 53</a></span>&#160; <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html">FixedBitSet</a>(<span class="keywordtype">int</span> numBits)</div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>&#160; {</div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>&#160; bits = <span class="keyword">new</span> BitArray(numBits);</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>&#160; }</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>&#160;</div>
<div class="line"><a name="l00062"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#a679279f1e4cc538827a2d15519eb5d28"> 62</a></span>&#160; <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html">FixedBitSet</a>(<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html">FixedBitSet</a> other)</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>&#160; {</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>&#160; bits = <span class="keyword">new</span> BitArray(other.bits);</div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>&#160; }</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>&#160;</div>
<div class="line"><a name="l00067"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#a2631ae707c88b2c7a7b4f2da67cb53e4"> 67</a></span>&#160; <span class="keyword">public</span> <a class="code" href="interface_lucene_1_1_net_1_1_spatial_1_1_util_1_1_i_bits.html" title="Interface for Bitset-like structures. ">IBits</a> <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_bits.html" title="Empty implementation, basically just so we can provide EMPTY_ARRAY ">Bits</a>()</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>&#160; {</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>&#160; <span class="keywordflow">return</span> <span class="keyword">this</span>;</div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>&#160; }</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>&#160;</div>
<div class="line"><a name="l00072"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#a053d861e54014c33c460139d66753d3f"> 72</a></span>&#160; <span class="keyword">public</span> <span class="keywordtype">int</span> Length()</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>&#160; {</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>&#160; <span class="keywordflow">return</span> bits.<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_bits.html#aeb3d6a90f8143a59ff1d375e34fcaed3">Length</a>;</div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>&#160; }</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>&#160;</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>&#160; <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">bool</span> IsCacheable</div>
<div class="line"><a name="l00078"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#a9657cfe451bc427e1ea7e02b3a3eef34"> 78</a></span>&#160; {</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>&#160; <span class="keyword">get</span> { <span class="keywordflow">return</span> <span class="keyword">true</span>; }</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>&#160; }</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>&#160;</div>
<div class="line"><a name="l00088"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#abc9d57ee674a76eb14d22873d201ca06"> 88</a></span>&#160; <span class="keyword">public</span> <span class="keywordtype">int</span> Cardinality()</div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>&#160; {</div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>&#160; <span class="keywordtype">int</span> ret = 0;</div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>&#160; <span class="keywordflow">for</span> (var i = 0; i &lt; bits.Length; i++)</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>&#160; {</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>&#160; <span class="keywordflow">if</span> (bits[i]) ret++;</div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>&#160; }</div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>&#160; <span class="keywordflow">return</span> ret;</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>&#160; }</div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>&#160;</div>
<div class="line"><a name="l00098"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#a9672ac26c34f02c76a2521dc44f7cfdd"> 98</a></span>&#160; <span class="keyword">public</span> <span class="keywordtype">bool</span> Get(<span class="keywordtype">int</span> index)</div>
<div class="line"><a name="l00099"></a><span class="lineno"> 99</span>&#160; {</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>&#160; <span class="keywordflow">return</span> bits[index];</div>
<div class="line"><a name="l00101"></a><span class="lineno"> 101</span>&#160; }</div>
<div class="line"><a name="l00102"></a><span class="lineno"> 102</span>&#160;</div>
<div class="line"><a name="l00103"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#a7b50d02d4e9187a214f84cef787467b5"> 103</a></span>&#160; <span class="keyword">public</span> <span class="keywordtype">void</span> Set(<span class="keywordtype">int</span> index)</div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>&#160; {</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>&#160; bits.Set(index, <span class="keyword">true</span>);</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>&#160; }</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>&#160;</div>
<div class="line"><a name="l00108"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#a823a085b6dad0d0831b70db6c132a02d"> 108</a></span>&#160; <span class="keyword">public</span> <span class="keywordtype">bool</span> GetAndSet(<span class="keywordtype">int</span> index)</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>&#160; {</div>
<div class="line"><a name="l00110"></a><span class="lineno"> 110</span>&#160; var ret = bits[index];</div>
<div class="line"><a name="l00111"></a><span class="lineno"> 111</span>&#160; bits.Set(index, <span class="keyword">true</span>);</div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>&#160; <span class="keywordflow">return</span> ret;</div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>&#160; }</div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>&#160;</div>
<div class="line"><a name="l00115"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#ab7f6f4e420f2153df6a4f3baae65fa5f"> 115</a></span>&#160; <span class="keyword">public</span> <span class="keywordtype">void</span> Clear(<span class="keywordtype">int</span> index)</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>&#160; {</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>&#160; bits.Set(index, <span class="keyword">false</span>);</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>&#160; }</div>
<div class="line"><a name="l00119"></a><span class="lineno"> 119</span>&#160;</div>
<div class="line"><a name="l00120"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#a02c7c483a42e205a72e4e4f220d703c4"> 120</a></span>&#160; <span class="keyword">public</span> <span class="keywordtype">bool</span> GetAndClear(<span class="keywordtype">int</span> index)</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>&#160; {</div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>&#160; var ret = bits[index];</div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>&#160; bits.Set(index, <span class="keyword">false</span>);</div>
<div class="line"><a name="l00124"></a><span class="lineno"> 124</span>&#160; <span class="keywordflow">return</span> ret;</div>
<div class="line"><a name="l00125"></a><span class="lineno"> 125</span>&#160; }</div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>&#160;</div>
<div class="line"><a name="l00133"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#a56d4bdfc7843639793f5bbc2abf04533"> 133</a></span>&#160; <span class="keyword">public</span> <span class="keywordtype">int</span> NextSetBit(<span class="keywordtype">int</span> index)</div>
<div class="line"><a name="l00134"></a><span class="lineno"> 134</span>&#160; {</div>
<div class="line"><a name="l00135"></a><span class="lineno"> 135</span>&#160; <span class="keywordflow">if</span> (index &gt;= bits.Length || index &lt; 0)</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>&#160; <span class="keywordflow">throw</span> <span class="keyword">new</span> ArgumentException(<span class="stringliteral">&quot;Invalid index&quot;</span>, <span class="stringliteral">&quot;index&quot;</span>);</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>&#160;</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>&#160; <span class="keywordflow">for</span> (var i = index; i &lt; bits.Length; i++)</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>&#160; {</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>&#160; <span class="keywordflow">if</span> (bits[i]) <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>&#160; }</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>&#160;</div>
<div class="line"><a name="l00143"></a><span class="lineno"> 143</span>&#160; <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00144"></a><span class="lineno"> 144</span>&#160; }</div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>&#160;</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span>&#160; <span class="comment">/* Returns the index of the last set bit before or on the index specified.</span></div>
<div class="line"><a name="l00147"></a><span class="lineno"> 147</span>&#160;<span class="comment"> * -1 is returned if there are no more set bits.</span></div>
<div class="line"><a name="l00148"></a><span class="lineno"> 148</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00149"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#ac558027369550352ed87aa755f3b653d"> 149</a></span>&#160; <span class="keyword">public</span> <span class="keywordtype">int</span> PrevSetBit(<span class="keywordtype">int</span> index)</div>
<div class="line"><a name="l00150"></a><span class="lineno"> 150</span>&#160; {</div>
<div class="line"><a name="l00151"></a><span class="lineno"> 151</span>&#160; <span class="keywordflow">if</span> (index &gt;= bits.Length || index &lt; 0)</div>
<div class="line"><a name="l00152"></a><span class="lineno"> 152</span>&#160; <span class="keywordflow">throw</span> <span class="keyword">new</span> ArgumentException(<span class="stringliteral">&quot;Invalid index&quot;</span>, <span class="stringliteral">&quot;index&quot;</span>);</div>
<div class="line"><a name="l00153"></a><span class="lineno"> 153</span>&#160;</div>
<div class="line"><a name="l00154"></a><span class="lineno"> 154</span>&#160; <span class="keywordflow">for</span> (var i = index; i &gt;= 0; i--)</div>
<div class="line"><a name="l00155"></a><span class="lineno"> 155</span>&#160; {</div>
<div class="line"><a name="l00156"></a><span class="lineno"> 156</span>&#160; <span class="keywordflow">if</span> (bits[i]) <span class="keywordflow">return</span> i;</div>
<div class="line"><a name="l00157"></a><span class="lineno"> 157</span>&#160; }</div>
<div class="line"><a name="l00158"></a><span class="lineno"> 158</span>&#160;</div>
<div class="line"><a name="l00159"></a><span class="lineno"> 159</span>&#160; <span class="keywordflow">return</span> -1;</div>
<div class="line"><a name="l00160"></a><span class="lineno"> 160</span>&#160; }</div>
<div class="line"><a name="l00161"></a><span class="lineno"> 161</span>&#160;</div>
<div class="line"><a name="l00162"></a><span class="lineno"> 162</span>&#160; <span class="comment">/* Does in-place OR of the bits provided by the</span></div>
<div class="line"><a name="l00163"></a><span class="lineno"> 163</span>&#160;<span class="comment"> * iterator. */</span></div>
<div class="line"><a name="l00164"></a><span class="lineno"> 164</span>&#160; <span class="comment">//public void Or(DocIdSetIterator iter)</span></div>
<div class="line"><a name="l00165"></a><span class="lineno"> 165</span>&#160; <span class="comment">//{</span></div>
<div class="line"><a name="l00166"></a><span class="lineno"> 166</span>&#160; <span class="comment">// if (iter is OpenBitSetIterator &amp;&amp; iter.DocID() == -1)</span></div>
<div class="line"><a name="l00167"></a><span class="lineno"> 167</span>&#160; <span class="comment">// {</span></div>
<div class="line"><a name="l00168"></a><span class="lineno"> 168</span>&#160; <span class="comment">// var obs = (OpenBitSetIterator)iter;</span></div>
<div class="line"><a name="l00169"></a><span class="lineno"> 169</span>&#160; <span class="comment">// Or(obs.arr, obs.words);</span></div>
<div class="line"><a name="l00170"></a><span class="lineno"> 170</span>&#160; <span class="comment">// // advance after last doc that would be accepted if standard</span></div>
<div class="line"><a name="l00171"></a><span class="lineno"> 171</span>&#160; <span class="comment">// // iteration is used (to exhaust it):</span></div>
<div class="line"><a name="l00172"></a><span class="lineno"> 172</span>&#160; <span class="comment">// obs.Advance(bits.Length);</span></div>
<div class="line"><a name="l00173"></a><span class="lineno"> 173</span>&#160; <span class="comment">// }</span></div>
<div class="line"><a name="l00174"></a><span class="lineno"> 174</span>&#160; <span class="comment">// else</span></div>
<div class="line"><a name="l00175"></a><span class="lineno"> 175</span>&#160; <span class="comment">// {</span></div>
<div class="line"><a name="l00176"></a><span class="lineno"> 176</span>&#160; <span class="comment">// int doc;</span></div>
<div class="line"><a name="l00177"></a><span class="lineno"> 177</span>&#160; <span class="comment">// while ((doc = iter.NextDoc()) &lt; bits.Length)</span></div>
<div class="line"><a name="l00178"></a><span class="lineno"> 178</span>&#160; <span class="comment">// {</span></div>
<div class="line"><a name="l00179"></a><span class="lineno"> 179</span>&#160; <span class="comment">// Set(doc);</span></div>
<div class="line"><a name="l00180"></a><span class="lineno"> 180</span>&#160; <span class="comment">// }</span></div>
<div class="line"><a name="l00181"></a><span class="lineno"> 181</span>&#160; <span class="comment">// }</span></div>
<div class="line"><a name="l00182"></a><span class="lineno"> 182</span>&#160; <span class="comment">//}</span></div>
<div class="line"><a name="l00183"></a><span class="lineno"> 183</span>&#160;</div>
<div class="line"><a name="l00184"></a><span class="lineno"> 184</span>&#160; <span class="comment">/* this = this OR other */</span></div>
<div class="line"><a name="l00185"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#a7f791d87513b840498c3ba8d83026bbc"> 185</a></span>&#160; <span class="keyword">public</span> <span class="keywordtype">void</span> Or(<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html">FixedBitSet</a> other)</div>
<div class="line"><a name="l00186"></a><span class="lineno"> 186</span>&#160; {</div>
<div class="line"><a name="l00187"></a><span class="lineno"> 187</span>&#160; Or(other.bits, other.bits.Length);</div>
<div class="line"><a name="l00188"></a><span class="lineno"> 188</span>&#160; }</div>
<div class="line"><a name="l00189"></a><span class="lineno"> 189</span>&#160;</div>
<div class="line"><a name="l00190"></a><span class="lineno"> 190</span>&#160; <span class="keyword">private</span> <span class="keywordtype">void</span> Or(BitArray otherArr, <span class="keywordtype">int</span> otherLen)</div>
<div class="line"><a name="l00191"></a><span class="lineno"> 191</span>&#160; {</div>
<div class="line"><a name="l00192"></a><span class="lineno"> 192</span>&#160; var thisArr = this.bits;</div>
<div class="line"><a name="l00193"></a><span class="lineno"> 193</span>&#160; <span class="keywordtype">int</span> pos = Math.Min(thisArr.Length, otherLen);</div>
<div class="line"><a name="l00194"></a><span class="lineno"> 194</span>&#160; <span class="keywordflow">while</span> (--pos &gt;= 0)</div>
<div class="line"><a name="l00195"></a><span class="lineno"> 195</span>&#160; {</div>
<div class="line"><a name="l00196"></a><span class="lineno"> 196</span>&#160; thisArr[pos] |= otherArr[pos];</div>
<div class="line"><a name="l00197"></a><span class="lineno"> 197</span>&#160; }</div>
<div class="line"><a name="l00198"></a><span class="lineno"> 198</span>&#160; }</div>
<div class="line"><a name="l00199"></a><span class="lineno"> 199</span>&#160;</div>
<div class="line"><a name="l00200"></a><span class="lineno"> 200</span>&#160; <span class="comment">/* Does in-place AND of the bits provided by the</span></div>
<div class="line"><a name="l00201"></a><span class="lineno"> 201</span>&#160;<span class="comment"> * iterator. */</span></div>
<div class="line"><a name="l00202"></a><span class="lineno"> 202</span>&#160; <span class="comment">//public void And(DocIdSetIterator iter)</span></div>
<div class="line"><a name="l00203"></a><span class="lineno"> 203</span>&#160; <span class="comment">//{</span></div>
<div class="line"><a name="l00204"></a><span class="lineno"> 204</span>&#160; <span class="comment">// if (iter is OpenBitSetIterator &amp;&amp; iter.DocID() == -1)</span></div>
<div class="line"><a name="l00205"></a><span class="lineno"> 205</span>&#160; <span class="comment">// {</span></div>
<div class="line"><a name="l00206"></a><span class="lineno"> 206</span>&#160; <span class="comment">// var obs = (OpenBitSetIterator)iter;</span></div>
<div class="line"><a name="l00207"></a><span class="lineno"> 207</span>&#160; <span class="comment">// And(obs.arr, obs.words);</span></div>
<div class="line"><a name="l00208"></a><span class="lineno"> 208</span>&#160; <span class="comment">// // advance after last doc that would be accepted if standard</span></div>
<div class="line"><a name="l00209"></a><span class="lineno"> 209</span>&#160; <span class="comment">// // iteration is used (to exhaust it):</span></div>
<div class="line"><a name="l00210"></a><span class="lineno"> 210</span>&#160; <span class="comment">// obs.Advance(bits.Length);</span></div>
<div class="line"><a name="l00211"></a><span class="lineno"> 211</span>&#160; <span class="comment">// }</span></div>
<div class="line"><a name="l00212"></a><span class="lineno"> 212</span>&#160; <span class="comment">// else</span></div>
<div class="line"><a name="l00213"></a><span class="lineno"> 213</span>&#160; <span class="comment">// {</span></div>
<div class="line"><a name="l00214"></a><span class="lineno"> 214</span>&#160; <span class="comment">// if (bits.Length == 0) return;</span></div>
<div class="line"><a name="l00215"></a><span class="lineno"> 215</span>&#160; <span class="comment">// int disiDoc, bitSetDoc = NextSetBit(0);</span></div>
<div class="line"><a name="l00216"></a><span class="lineno"> 216</span>&#160; <span class="comment">// while (bitSetDoc != -1 &amp;&amp; (disiDoc = iter.Advance(bitSetDoc)) &lt; bits.Length)</span></div>
<div class="line"><a name="l00217"></a><span class="lineno"> 217</span>&#160; <span class="comment">// {</span></div>
<div class="line"><a name="l00218"></a><span class="lineno"> 218</span>&#160; <span class="comment">// Clear(bitSetDoc, disiDoc);</span></div>
<div class="line"><a name="l00219"></a><span class="lineno"> 219</span>&#160; <span class="comment">// disiDoc++;</span></div>
<div class="line"><a name="l00220"></a><span class="lineno"> 220</span>&#160; <span class="comment">// bitSetDoc = (disiDoc &lt; bits.Length) ? NextSetBit(disiDoc) : -1;</span></div>
<div class="line"><a name="l00221"></a><span class="lineno"> 221</span>&#160; <span class="comment">// }</span></div>
<div class="line"><a name="l00222"></a><span class="lineno"> 222</span>&#160; <span class="comment">// if (bitSetDoc != -1)</span></div>
<div class="line"><a name="l00223"></a><span class="lineno"> 223</span>&#160; <span class="comment">// {</span></div>
<div class="line"><a name="l00224"></a><span class="lineno"> 224</span>&#160; <span class="comment">// Clear(bitSetDoc, bits.Length);</span></div>
<div class="line"><a name="l00225"></a><span class="lineno"> 225</span>&#160; <span class="comment">// }</span></div>
<div class="line"><a name="l00226"></a><span class="lineno"> 226</span>&#160; <span class="comment">// }</span></div>
<div class="line"><a name="l00227"></a><span class="lineno"> 227</span>&#160; <span class="comment">//}</span></div>
<div class="line"><a name="l00228"></a><span class="lineno"> 228</span>&#160;</div>
<div class="line"><a name="l00229"></a><span class="lineno"> 229</span>&#160; <span class="comment">/* this = this AND other */</span></div>
<div class="line"><a name="l00230"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#a481571f10bb6175255a3154289d17be2"> 230</a></span>&#160; <span class="keyword">public</span> <span class="keywordtype">void</span> And(<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html">FixedBitSet</a> other)</div>
<div class="line"><a name="l00231"></a><span class="lineno"> 231</span>&#160; {</div>
<div class="line"><a name="l00232"></a><span class="lineno"> 232</span>&#160; And(other.bits, other.bits.Length);</div>
<div class="line"><a name="l00233"></a><span class="lineno"> 233</span>&#160; }</div>
<div class="line"><a name="l00234"></a><span class="lineno"> 234</span>&#160;</div>
<div class="line"><a name="l00235"></a><span class="lineno"> 235</span>&#160; <span class="keyword">private</span> <span class="keywordtype">void</span> And(BitArray otherArr, <span class="keywordtype">int</span> otherLen)</div>
<div class="line"><a name="l00236"></a><span class="lineno"> 236</span>&#160; {</div>
<div class="line"><a name="l00237"></a><span class="lineno"> 237</span>&#160; var thisArr = this.bits;</div>
<div class="line"><a name="l00238"></a><span class="lineno"> 238</span>&#160; <span class="keywordtype">int</span> pos = Math.Min(thisArr.Length, otherLen);</div>
<div class="line"><a name="l00239"></a><span class="lineno"> 239</span>&#160; <span class="keywordflow">while</span> (--pos &gt;= 0)</div>
<div class="line"><a name="l00240"></a><span class="lineno"> 240</span>&#160; {</div>
<div class="line"><a name="l00241"></a><span class="lineno"> 241</span>&#160; thisArr[pos] &amp;= otherArr[pos];</div>
<div class="line"><a name="l00242"></a><span class="lineno"> 242</span>&#160; }</div>
<div class="line"><a name="l00243"></a><span class="lineno"> 243</span>&#160; <span class="keywordflow">if</span> (thisArr.Length &gt; otherLen)</div>
<div class="line"><a name="l00244"></a><span class="lineno"> 244</span>&#160; {</div>
<div class="line"><a name="l00245"></a><span class="lineno"> 245</span>&#160; <span class="keywordflow">for</span> (var i = otherLen; i &lt; thisArr.Length; i++)</div>
<div class="line"><a name="l00246"></a><span class="lineno"> 246</span>&#160; {</div>
<div class="line"><a name="l00247"></a><span class="lineno"> 247</span>&#160; thisArr[i] = <span class="keyword">false</span>;</div>
<div class="line"><a name="l00248"></a><span class="lineno"> 248</span>&#160; }</div>
<div class="line"><a name="l00249"></a><span class="lineno"> 249</span>&#160; }</div>
<div class="line"><a name="l00250"></a><span class="lineno"> 250</span>&#160; }</div>
<div class="line"><a name="l00251"></a><span class="lineno"> 251</span>&#160;</div>
<div class="line"><a name="l00252"></a><span class="lineno"> 252</span>&#160; <span class="comment">/* Does in-place AND NOT of the bits provided by the</span></div>
<div class="line"><a name="l00253"></a><span class="lineno"> 253</span>&#160;<span class="comment"> * iterator. */</span></div>
<div class="line"><a name="l00254"></a><span class="lineno"> 254</span>&#160; <span class="comment">//public void AndNot(DocIdSetIterator iter)</span></div>
<div class="line"><a name="l00255"></a><span class="lineno"> 255</span>&#160; <span class="comment">//{</span></div>
<div class="line"><a name="l00256"></a><span class="lineno"> 256</span>&#160; <span class="comment">// var obs = iter as OpenBitSetIterator;</span></div>
<div class="line"><a name="l00257"></a><span class="lineno"> 257</span>&#160; <span class="comment">// if (obs != null &amp;&amp; iter.DocID() == -1)</span></div>
<div class="line"><a name="l00258"></a><span class="lineno"> 258</span>&#160; <span class="comment">// {</span></div>
<div class="line"><a name="l00259"></a><span class="lineno"> 259</span>&#160; <span class="comment">// AndNot(obs.arr, obs.words);</span></div>
<div class="line"><a name="l00260"></a><span class="lineno"> 260</span>&#160; <span class="comment">// // advance after last doc that would be accepted if standard</span></div>
<div class="line"><a name="l00261"></a><span class="lineno"> 261</span>&#160; <span class="comment">// // iteration is used (to exhaust it):</span></div>
<div class="line"><a name="l00262"></a><span class="lineno"> 262</span>&#160; <span class="comment">// obs.Advance(bits.Length);</span></div>
<div class="line"><a name="l00263"></a><span class="lineno"> 263</span>&#160; <span class="comment">// }</span></div>
<div class="line"><a name="l00264"></a><span class="lineno"> 264</span>&#160; <span class="comment">// else</span></div>
<div class="line"><a name="l00265"></a><span class="lineno"> 265</span>&#160; <span class="comment">// {</span></div>
<div class="line"><a name="l00266"></a><span class="lineno"> 266</span>&#160; <span class="comment">// int doc;</span></div>
<div class="line"><a name="l00267"></a><span class="lineno"> 267</span>&#160; <span class="comment">// while ((doc = iter.NextDoc()) &lt; bits.Length)</span></div>
<div class="line"><a name="l00268"></a><span class="lineno"> 268</span>&#160; <span class="comment">// {</span></div>
<div class="line"><a name="l00269"></a><span class="lineno"> 269</span>&#160; <span class="comment">// Clear(doc);</span></div>
<div class="line"><a name="l00270"></a><span class="lineno"> 270</span>&#160; <span class="comment">// }</span></div>
<div class="line"><a name="l00271"></a><span class="lineno"> 271</span>&#160; <span class="comment">// }</span></div>
<div class="line"><a name="l00272"></a><span class="lineno"> 272</span>&#160; <span class="comment">//}</span></div>
<div class="line"><a name="l00273"></a><span class="lineno"> 273</span>&#160;</div>
<div class="line"><a name="l00274"></a><span class="lineno"> 274</span>&#160; <span class="comment">/* this = this AND NOT other */</span></div>
<div class="line"><a name="l00275"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#a9661eba189bf52a6176d89e07384ce82"> 275</a></span>&#160; <span class="keyword">public</span> <span class="keywordtype">void</span> AndNot(<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html">FixedBitSet</a> other)</div>
<div class="line"><a name="l00276"></a><span class="lineno"> 276</span>&#160; {</div>
<div class="line"><a name="l00277"></a><span class="lineno"> 277</span>&#160; AndNot(other.bits, other.bits.Length);</div>
<div class="line"><a name="l00278"></a><span class="lineno"> 278</span>&#160; }</div>
<div class="line"><a name="l00279"></a><span class="lineno"> 279</span>&#160;</div>
<div class="line"><a name="l00280"></a><span class="lineno"> 280</span>&#160; <span class="keyword">private</span> <span class="keywordtype">void</span> AndNot(BitArray otherArr, <span class="keywordtype">int</span> otherLen)</div>
<div class="line"><a name="l00281"></a><span class="lineno"> 281</span>&#160; {</div>
<div class="line"><a name="l00282"></a><span class="lineno"> 282</span>&#160; var thisArr = this.bits;</div>
<div class="line"><a name="l00283"></a><span class="lineno"> 283</span>&#160; <span class="keywordtype">int</span> pos = Math.Min(thisArr.Length, otherLen);</div>
<div class="line"><a name="l00284"></a><span class="lineno"> 284</span>&#160; <span class="keywordflow">while</span> (--pos &gt;= 0)</div>
<div class="line"><a name="l00285"></a><span class="lineno"> 285</span>&#160; {</div>
<div class="line"><a name="l00286"></a><span class="lineno"> 286</span>&#160; thisArr[pos] &amp;= !otherArr[pos];</div>
<div class="line"><a name="l00287"></a><span class="lineno"> 287</span>&#160; }</div>
<div class="line"><a name="l00288"></a><span class="lineno"> 288</span>&#160; }</div>
<div class="line"><a name="l00289"></a><span class="lineno"> 289</span>&#160;</div>
<div class="line"><a name="l00290"></a><span class="lineno"> 290</span>&#160; <span class="comment">// NOTE: no .isEmpty() here because that&#39;s trappy (ie,</span></div>
<div class="line"><a name="l00291"></a><span class="lineno"> 291</span>&#160; <span class="comment">// typically isEmpty is low cost, but this one wouldn&#39;t</span></div>
<div class="line"><a name="l00292"></a><span class="lineno"> 292</span>&#160; <span class="comment">// be)</span></div>
<div class="line"><a name="l00293"></a><span class="lineno"> 293</span>&#160;</div>
<div class="line"><a name="l00294"></a><span class="lineno"> 294</span>&#160; <span class="comment">/* Flips a range of bits</span></div>
<div class="line"><a name="l00295"></a><span class="lineno"> 295</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00296"></a><span class="lineno"> 296</span>&#160;<span class="comment"> * @param startIndex lower index</span></div>
<div class="line"><a name="l00297"></a><span class="lineno"> 297</span>&#160;<span class="comment"> * @param endIndex one-past the last bit to flip</span></div>
<div class="line"><a name="l00298"></a><span class="lineno"> 298</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00299"></a><span class="lineno"> 299</span>&#160; <span class="comment">// public void Flip(int startIndex, int endIndex) {</span></div>
<div class="line"><a name="l00300"></a><span class="lineno"> 300</span>&#160; <span class="comment">// Debug.Assert(startIndex &gt;= 0 &amp;&amp; startIndex &lt; numBits);</span></div>
<div class="line"><a name="l00301"></a><span class="lineno"> 301</span>&#160; <span class="comment">// Debug.Assert(endIndex &gt;= 0 &amp;&amp; endIndex &lt;= numBits);</span></div>
<div class="line"><a name="l00302"></a><span class="lineno"> 302</span>&#160; <span class="comment">// if (endIndex &lt;= startIndex) {</span></div>
<div class="line"><a name="l00303"></a><span class="lineno"> 303</span>&#160; <span class="comment">// return;</span></div>
<div class="line"><a name="l00304"></a><span class="lineno"> 304</span>&#160; <span class="comment">// }</span></div>
<div class="line"><a name="l00305"></a><span class="lineno"> 305</span>&#160;</div>
<div class="line"><a name="l00306"></a><span class="lineno"> 306</span>&#160; <span class="comment">// int startWord = startIndex &gt;&gt; 6;</span></div>
<div class="line"><a name="l00307"></a><span class="lineno"> 307</span>&#160; <span class="comment">// int endWord = (endIndex-1) &gt;&gt; 6;</span></div>
<div class="line"><a name="l00308"></a><span class="lineno"> 308</span>&#160;</div>
<div class="line"><a name="l00309"></a><span class="lineno"> 309</span>&#160; <span class="comment">// /* Grrr, java shifting wraps around so -1L&gt;&gt;&gt;64 == -1</span></div>
<div class="line"><a name="l00310"></a><span class="lineno"> 310</span>&#160; <span class="comment">// * for that reason, make sure not to use endmask if the bits to flip will</span></div>
<div class="line"><a name="l00311"></a><span class="lineno"> 311</span>&#160; <span class="comment">// * be zero in the last word (redefine endWord to be the last changed...)</span></div>
<div class="line"><a name="l00312"></a><span class="lineno"> 312</span>&#160; <span class="comment">// long startmask = -1L &lt;&lt; (startIndex &amp; 0x3f); // example: 11111...111000</span></div>
<div class="line"><a name="l00313"></a><span class="lineno"> 313</span>&#160; <span class="comment">// long endmask = -1L &gt;&gt;&gt; (64-(endIndex &amp; 0x3f)); // example: 00111...111111</span></div>
<div class="line"><a name="l00314"></a><span class="lineno"> 314</span>&#160; <span class="comment">// ***/</span></div>
<div class="line"><a name="l00315"></a><span class="lineno"> 315</span>&#160;</div>
<div class="line"><a name="l00316"></a><span class="lineno"> 316</span>&#160; <span class="comment">// long startmask = -1L &lt;&lt; startIndex;</span></div>
<div class="line"><a name="l00317"></a><span class="lineno"> 317</span>&#160; <span class="comment">// long endmask = -1L &gt;&gt;&gt; -endIndex; // 64-(endIndex&amp;0x3f) is the same as -endIndex due to wrap</span></div>
<div class="line"><a name="l00318"></a><span class="lineno"> 318</span>&#160;</div>
<div class="line"><a name="l00319"></a><span class="lineno"> 319</span>&#160; <span class="comment">// if (startWord == endWord) {</span></div>
<div class="line"><a name="l00320"></a><span class="lineno"> 320</span>&#160; <span class="comment">// bits[startWord] ^= (startmask &amp; endmask);</span></div>
<div class="line"><a name="l00321"></a><span class="lineno"> 321</span>&#160; <span class="comment">// return;</span></div>
<div class="line"><a name="l00322"></a><span class="lineno"> 322</span>&#160; <span class="comment">// }</span></div>
<div class="line"><a name="l00323"></a><span class="lineno"> 323</span>&#160;</div>
<div class="line"><a name="l00324"></a><span class="lineno"> 324</span>&#160; <span class="comment">// bits[startWord] ^= startmask;</span></div>
<div class="line"><a name="l00325"></a><span class="lineno"> 325</span>&#160;</div>
<div class="line"><a name="l00326"></a><span class="lineno"> 326</span>&#160; <span class="comment">// for (var i=startWord+1; i&lt;endWord; i++) {</span></div>
<div class="line"><a name="l00327"></a><span class="lineno"> 327</span>&#160; <span class="comment">// bits[i] = ~bits[i];</span></div>
<div class="line"><a name="l00328"></a><span class="lineno"> 328</span>&#160; <span class="comment">// }</span></div>
<div class="line"><a name="l00329"></a><span class="lineno"> 329</span>&#160;</div>
<div class="line"><a name="l00330"></a><span class="lineno"> 330</span>&#160; <span class="comment">// bits[endWord] ^= endmask;</span></div>
<div class="line"><a name="l00331"></a><span class="lineno"> 331</span>&#160; <span class="comment">//}</span></div>
<div class="line"><a name="l00332"></a><span class="lineno"> 332</span>&#160;</div>
<div class="line"><a name="l00333"></a><span class="lineno"> 333</span>&#160; <span class="comment">/* Sets a range of bits</span></div>
<div class="line"><a name="l00334"></a><span class="lineno"> 334</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00335"></a><span class="lineno"> 335</span>&#160;<span class="comment"> * @param startIndex lower index</span></div>
<div class="line"><a name="l00336"></a><span class="lineno"> 336</span>&#160;<span class="comment"> * @param endIndex one-past the last bit to set</span></div>
<div class="line"><a name="l00337"></a><span class="lineno"> 337</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00338"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#ace5d869209c03941b513e28bfd8af9bb"> 338</a></span>&#160; <span class="keyword">public</span> <span class="keywordtype">void</span> Set(<span class="keywordtype">int</span> startIndex, <span class="keywordtype">int</span> endIndex)</div>
<div class="line"><a name="l00339"></a><span class="lineno"> 339</span>&#160; {</div>
<div class="line"><a name="l00340"></a><span class="lineno"> 340</span>&#160; <span class="comment">// Naive implementation</span></div>
<div class="line"><a name="l00341"></a><span class="lineno"> 341</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = startIndex; i &lt; endIndex; i++)</div>
<div class="line"><a name="l00342"></a><span class="lineno"> 342</span>&#160; {</div>
<div class="line"><a name="l00343"></a><span class="lineno"> 343</span>&#160; Set(i);</div>
<div class="line"><a name="l00344"></a><span class="lineno"> 344</span>&#160; }</div>
<div class="line"><a name="l00345"></a><span class="lineno"> 345</span>&#160; }</div>
<div class="line"><a name="l00346"></a><span class="lineno"> 346</span>&#160;</div>
<div class="line"><a name="l00347"></a><span class="lineno"> 347</span>&#160; <span class="comment">// public void Set(int startIndex, int endIndex) {</span></div>
<div class="line"><a name="l00348"></a><span class="lineno"> 348</span>&#160; <span class="comment">// Debug.Assert(startIndex &gt;= 0 &amp;&amp; startIndex &lt; numBits);</span></div>
<div class="line"><a name="l00349"></a><span class="lineno"> 349</span>&#160; <span class="comment">// Debug.Assert(endIndex &gt;= 0 &amp;&amp; endIndex &lt;= numBits);</span></div>
<div class="line"><a name="l00350"></a><span class="lineno"> 350</span>&#160; <span class="comment">// if (endIndex &lt;= startIndex) {</span></div>
<div class="line"><a name="l00351"></a><span class="lineno"> 351</span>&#160; <span class="comment">// return;</span></div>
<div class="line"><a name="l00352"></a><span class="lineno"> 352</span>&#160; <span class="comment">// }</span></div>
<div class="line"><a name="l00353"></a><span class="lineno"> 353</span>&#160;</div>
<div class="line"><a name="l00354"></a><span class="lineno"> 354</span>&#160; <span class="comment">// int startWord = startIndex &gt;&gt; 6;</span></div>
<div class="line"><a name="l00355"></a><span class="lineno"> 355</span>&#160; <span class="comment">// int endWord = (endIndex-1) &gt;&gt; 6;</span></div>
<div class="line"><a name="l00356"></a><span class="lineno"> 356</span>&#160;</div>
<div class="line"><a name="l00357"></a><span class="lineno"> 357</span>&#160; <span class="comment">// long startmask = -1L &lt;&lt; startIndex;</span></div>
<div class="line"><a name="l00358"></a><span class="lineno"> 358</span>&#160; <span class="comment">// long endmask = -1L &gt;&gt;&gt; -endIndex; // 64-(endIndex&amp;0x3f) is the same as -endIndex due to wrap</span></div>
<div class="line"><a name="l00359"></a><span class="lineno"> 359</span>&#160;</div>
<div class="line"><a name="l00360"></a><span class="lineno"> 360</span>&#160; <span class="comment">// if (startWord == endWord) {</span></div>
<div class="line"><a name="l00361"></a><span class="lineno"> 361</span>&#160; <span class="comment">// bits[startWord] |= (startmask &amp; endmask);</span></div>
<div class="line"><a name="l00362"></a><span class="lineno"> 362</span>&#160; <span class="comment">// return;</span></div>
<div class="line"><a name="l00363"></a><span class="lineno"> 363</span>&#160; <span class="comment">// }</span></div>
<div class="line"><a name="l00364"></a><span class="lineno"> 364</span>&#160;</div>
<div class="line"><a name="l00365"></a><span class="lineno"> 365</span>&#160; <span class="comment">// bits[startWord] |= startmask;</span></div>
<div class="line"><a name="l00366"></a><span class="lineno"> 366</span>&#160; <span class="comment">// Arrays.Fill(bits, startWord+1, endWord, -1L);</span></div>
<div class="line"><a name="l00367"></a><span class="lineno"> 367</span>&#160; <span class="comment">// bits[endWord] |= endmask;</span></div>
<div class="line"><a name="l00368"></a><span class="lineno"> 368</span>&#160; <span class="comment">//}</span></div>
<div class="line"><a name="l00369"></a><span class="lineno"> 369</span>&#160;</div>
<div class="line"><a name="l00370"></a><span class="lineno"> 370</span>&#160; <span class="comment">/* Clears a range of bits.</span></div>
<div class="line"><a name="l00371"></a><span class="lineno"> 371</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00372"></a><span class="lineno"> 372</span>&#160;<span class="comment"> * @param startIndex lower index</span></div>
<div class="line"><a name="l00373"></a><span class="lineno"> 373</span>&#160;<span class="comment"> * @param endIndex one-past the last bit to clear</span></div>
<div class="line"><a name="l00374"></a><span class="lineno"> 374</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00375"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#aca874e3c2a15560c228800d9e3b101c9"> 375</a></span>&#160; <span class="keyword">public</span> <span class="keywordtype">void</span> Clear(<span class="keywordtype">int</span> startIndex, <span class="keywordtype">int</span> endIndex)</div>
<div class="line"><a name="l00376"></a><span class="lineno"> 376</span>&#160; {</div>
<div class="line"><a name="l00377"></a><span class="lineno"> 377</span>&#160; <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i = startIndex; i &lt; endIndex; i++)</div>
<div class="line"><a name="l00378"></a><span class="lineno"> 378</span>&#160; {</div>
<div class="line"><a name="l00379"></a><span class="lineno"> 379</span>&#160; Clear(i);</div>
<div class="line"><a name="l00380"></a><span class="lineno"> 380</span>&#160; }</div>
<div class="line"><a name="l00381"></a><span class="lineno"> 381</span>&#160; }</div>
<div class="line"><a name="l00382"></a><span class="lineno"> 382</span>&#160;</div>
<div class="line"><a name="l00383"></a><span class="lineno"> 383</span>&#160; <span class="comment">//@Override</span></div>
<div class="line"><a name="l00384"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#af581f5347cf4f39baeee6839a81a461f"> 384</a></span>&#160; <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html">FixedBitSet</a> Clone()</div>
<div class="line"><a name="l00385"></a><span class="lineno"> 385</span>&#160; {</div>
<div class="line"><a name="l00386"></a><span class="lineno"> 386</span>&#160; <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html">FixedBitSet</a>(<span class="keyword">this</span>);</div>
<div class="line"><a name="l00387"></a><span class="lineno"> 387</span>&#160; }</div>
<div class="line"><a name="l00388"></a><span class="lineno"> 388</span>&#160;</div>
<div class="line"><a name="l00389"></a><span class="lineno"> 389</span>&#160; <span class="comment">/* returns true if both sets have the same bits set */</span></div>
<div class="line"><a name="l00390"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#ab76a79cb340382b39af0cd7222105ee9"> 390</a></span>&#160; <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">bool</span> Equals(Object o)</div>
<div class="line"><a name="l00391"></a><span class="lineno"> 391</span>&#160; {</div>
<div class="line"><a name="l00392"></a><span class="lineno"> 392</span>&#160; <span class="keywordflow">if</span> (<span class="keyword">this</span> == o)</div>
<div class="line"><a name="l00393"></a><span class="lineno"> 393</span>&#160; {</div>
<div class="line"><a name="l00394"></a><span class="lineno"> 394</span>&#160; <span class="keywordflow">return</span> <span class="keyword">true</span>;</div>
<div class="line"><a name="l00395"></a><span class="lineno"> 395</span>&#160; }</div>
<div class="line"><a name="l00396"></a><span class="lineno"> 396</span>&#160;</div>
<div class="line"><a name="l00397"></a><span class="lineno"> 397</span>&#160; var other = o as <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html">FixedBitSet</a>;</div>
<div class="line"><a name="l00398"></a><span class="lineno"> 398</span>&#160; <span class="keywordflow">if</span> (other == null)</div>
<div class="line"><a name="l00399"></a><span class="lineno"> 399</span>&#160; {</div>
<div class="line"><a name="l00400"></a><span class="lineno"> 400</span>&#160; <span class="keywordflow">return</span> <span class="keyword">false</span>;</div>
<div class="line"><a name="l00401"></a><span class="lineno"> 401</span>&#160; }</div>
<div class="line"><a name="l00402"></a><span class="lineno"> 402</span>&#160;</div>
<div class="line"><a name="l00403"></a><span class="lineno"> 403</span>&#160; <span class="keywordflow">return</span> bits.<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#ab76a79cb340382b39af0cd7222105ee9">Equals</a>(other.bits);</div>
<div class="line"><a name="l00404"></a><span class="lineno"> 404</span>&#160; }</div>
<div class="line"><a name="l00405"></a><span class="lineno"> 405</span>&#160;</div>
<div class="line"><a name="l00406"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#a7ca085fb597348c52fa2f6473c588a86"> 406</a></span>&#160; <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">int</span> GetHashCode()</div>
<div class="line"><a name="l00407"></a><span class="lineno"> 407</span>&#160; {</div>
<div class="line"><a name="l00408"></a><span class="lineno"> 408</span>&#160; <span class="keywordflow">return</span> bits.GetHashCode();</div>
<div class="line"><a name="l00409"></a><span class="lineno"> 409</span>&#160; }</div>
<div class="line"><a name="l00410"></a><span class="lineno"> 410</span>&#160;</div>
<div class="line"><a name="l00411"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html#a4acc4c2560ec1432efd77ac43853e801"> 411</a></span>&#160; <span class="keyword">public</span> <span class="keyword">override</span> <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_doc_id_set_iterator.html" title="This abstract class defines methods to iterate over a set of non-decreasing doc ids. Note that this class assumes it iterates on doc Ids, and therefore NO_MORE_DOCS is set to Int32.MaxValue in order to be used as a sentinel object. Implementations of this class are expected to consider int.MaxValue as an invalid value. ">DocIdSetIterator</a> Iterator()</div>
<div class="line"><a name="l00412"></a><span class="lineno"> 412</span>&#160; {</div>
<div class="line"><a name="l00413"></a><span class="lineno"> 413</span>&#160; <span class="keywordflow">return</span> <span class="keyword">new</span> <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set_1_1_fixed_bit_set_iterator.html" title="A FixedBitSet Iterator implementation ">FixedBitSetIterator</a>(<span class="keyword">this</span>);</div>
<div class="line"><a name="l00414"></a><span class="lineno"> 414</span>&#160; }</div>
<div class="line"><a name="l00415"></a><span class="lineno"> 415</span>&#160;</div>
<div class="line"><a name="l00419"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set_1_1_fixed_bit_set_iterator.html"> 419</a></span>&#160; <span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set_1_1_fixed_bit_set_iterator.html" title="A FixedBitSet Iterator implementation ">FixedBitSetIterator</a> : <a class="code" href="class_lucene_1_1_net_1_1_search_1_1_doc_id_set_iterator.html" title="This abstract class defines methods to iterate over a set of non-decreasing doc ids. Note that this class assumes it iterates on doc Ids, and therefore NO_MORE_DOCS is set to Int32.MaxValue in order to be used as a sentinel object. Implementations of this class are expected to consider int.MaxValue as an invalid value. ">DocIdSetIterator</a></div>
<div class="line"><a name="l00420"></a><span class="lineno"> 420</span>&#160; {</div>
<div class="line"><a name="l00421"></a><span class="lineno"> 421</span>&#160; <span class="keyword">private</span> <span class="keywordtype">int</span> curDocId = -1;</div>
<div class="line"><a name="l00422"></a><span class="lineno"> 422</span>&#160; <span class="keyword">private</span> readonly IEnumerator enumerator;</div>
<div class="line"><a name="l00423"></a><span class="lineno"> 423</span>&#160;</div>
<div class="line"><a name="l00424"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set_1_1_fixed_bit_set_iterator.html#a346764e65813d5ebe6d8ac4217890486"> 424</a></span>&#160; <span class="keyword">public</span> <a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set_1_1_fixed_bit_set_iterator.html" title="A FixedBitSet Iterator implementation ">FixedBitSetIterator</a>(<a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set.html">FixedBitSet</a> bitset)</div>
<div class="line"><a name="l00425"></a><span class="lineno"> 425</span>&#160; {</div>
<div class="line"><a name="l00426"></a><span class="lineno"> 426</span>&#160; enumerator = bitset.bits.GetEnumerator();</div>
<div class="line"><a name="l00427"></a><span class="lineno"> 427</span>&#160; }</div>
<div class="line"><a name="l00428"></a><span class="lineno"> 428</span>&#160;</div>
<div class="line"><a name="l00429"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set_1_1_fixed_bit_set_iterator.html#a4bcbcfd2919f226ffb8e99fd0f6d2251"> 429</a></span>&#160; <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">int</span> DocID()</div>
<div class="line"><a name="l00430"></a><span class="lineno"> 430</span>&#160; {</div>
<div class="line"><a name="l00431"></a><span class="lineno"> 431</span>&#160; <span class="keywordflow">return</span> curDocId;</div>
<div class="line"><a name="l00432"></a><span class="lineno"> 432</span>&#160; }</div>
<div class="line"><a name="l00433"></a><span class="lineno"> 433</span>&#160;</div>
<div class="line"><a name="l00434"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set_1_1_fixed_bit_set_iterator.html#a9283b823c7506fa9c3a6925856764b07"> 434</a></span>&#160; <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">int</span> NextDoc()</div>
<div class="line"><a name="l00435"></a><span class="lineno"> 435</span>&#160; {</div>
<div class="line"><a name="l00436"></a><span class="lineno"> 436</span>&#160; <span class="keywordflow">while</span> (enumerator.MoveNext())</div>
<div class="line"><a name="l00437"></a><span class="lineno"> 437</span>&#160; {</div>
<div class="line"><a name="l00438"></a><span class="lineno"> 438</span>&#160; ++curDocId;</div>
<div class="line"><a name="l00439"></a><span class="lineno"> 439</span>&#160; <span class="keywordflow">if</span> ((<span class="keywordtype">bool</span>)enumerator.Current) <span class="keywordflow">return</span> curDocId;</div>
<div class="line"><a name="l00440"></a><span class="lineno"> 440</span>&#160; }</div>
<div class="line"><a name="l00441"></a><span class="lineno"> 441</span>&#160; <span class="keywordflow">return</span> curDocId = NO_MORE_DOCS;</div>
<div class="line"><a name="l00442"></a><span class="lineno"> 442</span>&#160; }</div>
<div class="line"><a name="l00443"></a><span class="lineno"> 443</span>&#160;</div>
<div class="line"><a name="l00444"></a><span class="lineno"><a class="code" href="class_lucene_1_1_net_1_1_spatial_1_1_util_1_1_fixed_bit_set_1_1_fixed_bit_set_iterator.html#adbd720ef25f32465f552e6f6cb487d8d"> 444</a></span>&#160; <span class="keyword">public</span> <span class="keyword">override</span> <span class="keywordtype">int</span> Advance(<span class="keywordtype">int</span> target)</div>
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<div class="line"><a name="l00446"></a><span class="lineno"> 446</span>&#160; <span class="keywordtype">int</span> doc;</div>
<div class="line"><a name="l00447"></a><span class="lineno"> 447</span>&#160; <span class="keywordflow">while</span> ((doc = NextDoc()) &lt; target)</div>
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<div class="line"><a name="l00449"></a><span class="lineno"> 449</span>&#160; }</div>
<div class="line"><a name="l00450"></a><span class="lineno"> 450</span>&#160; <span class="keywordflow">return</span> doc;</div>
<div class="line"><a name="l00451"></a><span class="lineno"> 451</span>&#160; }</div>
<div class="line"><a name="l00452"></a><span class="lineno"> 452</span>&#160; }</div>
<div class="line"><a name="l00453"></a><span class="lineno"> 453</span>&#160; }</div>
<div class="line"><a name="l00454"></a><span class="lineno"> 454</span>&#160;}</div>
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