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<a href="sample2_8cpp.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">/*</span></div>
<div class="line"><a name="l00002"></a><span class="lineno"> 2</span> <span class="comment">Copyright(c) 2002-2017 Anatoliy Kuznetsov(anatoliy_kuznetsov at yahoo.com)</span></div>
<div class="line"><a name="l00003"></a><span class="lineno"> 3</span> <span class="comment"></span> </div>
<div class="line"><a name="l00004"></a><span class="lineno"> 4</span> <span class="comment">Licensed under the Apache License, Version 2.0 (the "License");</span></div>
<div class="line"><a name="l00005"></a><span class="lineno"> 5</span> <span class="comment">you may not use this file except in compliance with the License.</span></div>
<div class="line"><a name="l00006"></a><span class="lineno"> 6</span> <span class="comment">You may obtain a copy of the License at</span></div>
<div class="line"><a name="l00007"></a><span class="lineno"> 7</span> <span class="comment"></span> </div>
<div class="line"><a name="l00008"></a><span class="lineno"> 8</span> <span class="comment"> http://www.apache.org/licenses/LICENSE-2.0</span></div>
<div class="line"><a name="l00009"></a><span class="lineno"> 9</span> <span class="comment"></span> </div>
<div class="line"><a name="l00010"></a><span class="lineno"> 10</span> <span class="comment">Unless required by applicable law or agreed to in writing, software</span></div>
<div class="line"><a name="l00011"></a><span class="lineno"> 11</span> <span class="comment">distributed under the License is distributed on an "AS IS" BASIS,</span></div>
<div class="line"><a name="l00012"></a><span class="lineno"> 12</span> <span class="comment">WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.</span></div>
<div class="line"><a name="l00013"></a><span class="lineno"> 13</span> <span class="comment">See the License for the specific language governing permissions and</span></div>
<div class="line"><a name="l00014"></a><span class="lineno"> 14</span> <span class="comment">limitations under the License.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno"> 15</span> <span class="comment"></span> </div>
<div class="line"><a name="l00016"></a><span class="lineno"> 16</span> <span class="comment">For more information please visit: http://bitmagic.io</span></div>
<div class="line"><a name="l00017"></a><span class="lineno"> 17</span> <span class="comment">*/</span></div>
<div class="line"><a name="l00018"></a><span class="lineno"> 18</span> <span class="comment"></span> </div>
<div class="line"><a name="l00019"></a><span class="lineno"> 19</span> <span class="comment">/** \example sample2.cpp</span></div>
<div class="line"><a name="l00020"></a><span class="lineno"> 20</span> <span class="comment"> Example demonstrates using set operations AND, OR, XOR, etc.</span></div>
<div class="line"><a name="l00021"></a><span class="lineno"> 21</span> <span class="comment"> \sa bvsetalgebra.cpp</span></div>
<div class="line"><a name="l00022"></a><span class="lineno"> 22</span> <span class="comment">*/</span></div>
<div class="line"><a name="l00023"></a><span class="lineno"> 23</span> <span class="comment"></span> </div>
<div class="line"><a name="l00024"></a><span class="lineno"> 24</span> <span class="comment">/*! \file sample2.cpp</span></div>
<div class="line"><a name="l00025"></a><span class="lineno"> 25</span> <span class="comment"> \brief Example: bvector<> set algebra operations AND, OR, XOR, etc.</span></div>
<div class="line"><a name="l00026"></a><span class="lineno"> 26</span> <span class="comment">*/</span></div>
<div class="line"><a name="l00027"></a><span class="lineno"> 27</span>  </div>
<div class="line"><a name="l00028"></a><span class="lineno"> 28</span> <span class="preprocessor">#include <iostream></span></div>
<div class="line"><a name="l00029"></a><span class="lineno"> 29</span> <span class="preprocessor">#include "<a class="code" href="bm_8h.html">bm.h</a>"</span></div>
<div class="line"><a name="l00030"></a><span class="lineno"> 30</span>  </div>
<div class="line"><a name="l00031"></a><span class="lineno"> 31</span> <span class="keyword">using namespace </span>std;</div>
<div class="line"><a name="l00032"></a><span class="lineno"> 32</span>  </div>
<div class="line"><a name="l00033"></a><span class="lineno"> 33</span> <span class="keyword">static</span></div>
<div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="sample2_8cpp.html#ab6c059ad3ebaf673eb5b172691db4e3b"> 34</a></span> <span class="keywordtype">void</span> <a class="code" href="sample2_8cpp.html#ab6c059ad3ebaf673eb5b172691db4e3b">print_bvector</a>(<span class="keyword">const</span> <a class="code" href="classbm_1_1bvector.html">bm::bvector<></a>& bv)</div>
<div class="line"><a name="l00035"></a><span class="lineno"> 35</span> {</div>
<div class="line"><a name="l00036"></a><span class="lineno"> 36</span>  <a class="code" href="classbm_1_1bvector.html#a405dd9ed048c935c84a5086ec8ba3649">bm::bvector<>::size_type</a> value = bv.<a class="code" href="classbm_1_1bvector.html#a9ab6964e14405327936d183a11dcd455">get_first</a>();</div>
<div class="line"><a name="l00037"></a><span class="lineno"> 37</span>  <span class="keywordflow">do</span></div>
<div class="line"><a name="l00038"></a><span class="lineno"> 38</span>  {</div>
<div class="line"><a name="l00039"></a><span class="lineno"> 39</span>  cout << value;</div>
<div class="line"><a name="l00040"></a><span class="lineno"> 40</span>  value = bv.<a class="code" href="classbm_1_1bvector.html#a3a09e493d97f5a66b6ec4e14e04cf118">get_next</a>(value);</div>
<div class="line"><a name="l00041"></a><span class="lineno"> 41</span>  <span class="keywordflow">if</span> (value)</div>
<div class="line"><a name="l00042"></a><span class="lineno"> 42</span>  {</div>
<div class="line"><a name="l00043"></a><span class="lineno"> 43</span>  cout << <span class="stringliteral">","</span>;</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  }</div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  {</div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="keywordflow">break</span>;</div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  }</div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  } <span class="keywordflow">while</span>(1);</div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  cout << endl;</div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span> }</div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  </div>
<div class="line"><a name="l00053"></a><span class="lineno"><a class="line" href="sample2_8cpp.html#a840291bc02cba5474a4cb46a9b9566fe"> 53</a></span> <span class="keywordtype">int</span> <a class="code" href="sample2_8cpp.html#a840291bc02cba5474a4cb46a9b9566fe">main</a>(<span class="keywordtype">void</span>)</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">try</span></div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  {</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  <a class="code" href="classbm_1_1bvector.html">bm::bvector<></a> bv1;</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  <a class="code" href="classbm_1_1bvector.html">bm::bvector<></a> bv2;</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <a class="code" href="classbm_1_1bvector.html">bm::bvector<></a> bv3;</div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  </div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  bv1.<a class="code" href="classbm_1_1bvector.html#a52b4259a5cc4ebd8953832c696e24f02">set</a>(10);</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  bv1.<a class="code" href="classbm_1_1bvector.html#a52b4259a5cc4ebd8953832c696e24f02">set</a>(100);</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  bv1.<a class="code" href="classbm_1_1bvector.html#a52b4259a5cc4ebd8953832c696e24f02">set</a>(1000000);</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>  </div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  bv2.<a class="code" href="classbm_1_1bvector.html#a52b4259a5cc4ebd8953832c696e24f02">set</a>(10);</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  bv2.<a class="code" href="classbm_1_1bvector.html#a52b4259a5cc4ebd8953832c696e24f02">set</a>(100);</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  </div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="comment">// Logical AND operation on bv2 (bv1 is the argument)</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  <span class="comment">// bv2 = bv2 AND bv1</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>  bv3 = bv1 & bv2;</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  <a class="code" href="sample2_8cpp.html#ab6c059ad3ebaf673eb5b172691db4e3b">print_bvector</a>(bv3);</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  </div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  bv2 &= bv1; <span class="comment">// You also can use: bv2.bit_and(bv1);</span></div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  <a class="code" href="sample2_8cpp.html#ab6c059ad3ebaf673eb5b172691db4e3b">print_bvector</a>(bv2);</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  </div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  <span class="comment">// bv2 = bv2 OR bv1</span></div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  </div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  bv3 = bv1 | bv2;</div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  <a class="code" href="sample2_8cpp.html#ab6c059ad3ebaf673eb5b172691db4e3b">print_bvector</a>(bv3);</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  </div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  bv2 |= bv1; <span class="comment">// You can also use: bv2.bit_or(bv1);</span></div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <a class="code" href="sample2_8cpp.html#ab6c059ad3ebaf673eb5b172691db4e3b">print_bvector</a>(bv2);</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>  </div>
<div class="line"><a name="l00087"></a><span class="lineno"> 87</span>  bv1.<a class="code" href="classbm_1_1bvector.html#a52b4259a5cc4ebd8953832c696e24f02">set</a>(1000000, <span class="keyword">false</span>);</div>
<div class="line"><a name="l00088"></a><span class="lineno"> 88</span>  </div>
<div class="line"><a name="l00089"></a><span class="lineno"> 89</span>  <span class="comment">// bv2 = bv2 SUB bv1</span></div>
<div class="line"><a name="l00090"></a><span class="lineno"> 90</span>  </div>
<div class="line"><a name="l00091"></a><span class="lineno"> 91</span>  bv3 = bv2 - bv1;</div>
<div class="line"><a name="l00092"></a><span class="lineno"> 92</span>  <a class="code" href="sample2_8cpp.html#ab6c059ad3ebaf673eb5b172691db4e3b">print_bvector</a>(bv3);</div>
<div class="line"><a name="l00093"></a><span class="lineno"> 93</span>  </div>
<div class="line"><a name="l00094"></a><span class="lineno"> 94</span>  bv2 -= bv1; <span class="comment">// You can also use: bv2.bit_sub(bv1);</span></div>
<div class="line"><a name="l00095"></a><span class="lineno"> 95</span>  <a class="code" href="sample2_8cpp.html#ab6c059ad3ebaf673eb5b172691db4e3b">print_bvector</a>(bv2);</div>
<div class="line"><a name="l00096"></a><span class="lineno"> 96</span>  </div>
<div class="line"><a name="l00097"></a><span class="lineno"> 97</span>  <span class="comment">// bv2 XOR bv1</span></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>  bv3 = bv2 ^ bv1;</div>
<div class="line"><a name="l00100"></a><span class="lineno"> 100</span>  <a class="code" href="sample2_8cpp.html#ab6c059ad3ebaf673eb5b172691db4e3b">print_bvector</a>(bv3);</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>  <span class="comment">// product of XOR is a mismatch vector (definition of XOR)</span></div>
<div class="line"><a name="l00103"></a><span class="lineno"> 103</span>  <span class="comment">//</span></div>
<div class="line"><a name="l00104"></a><span class="lineno"> 104</span>  {</div>
<div class="line"><a name="l00105"></a><span class="lineno"> 105</span>  <a class="code" href="classbm_1_1bvector.html#a405dd9ed048c935c84a5086ec8ba3649">bm::bvector<>::size_type</a> pos;</div>
<div class="line"><a name="l00106"></a><span class="lineno"> 106</span>  <span class="keywordtype">bool</span> f = bv3.<a class="code" href="classbm_1_1bvector.html#a08093c98bb6dfe27708357801aae7280">find</a>(pos);</div>
<div class="line"><a name="l00107"></a><span class="lineno"> 107</span>  <span class="keywordflow">if</span> (f)</div>
<div class="line"><a name="l00108"></a><span class="lineno"> 108</span>  {</div>
<div class="line"><a name="l00109"></a><span class="lineno"> 109</span>  cout << <span class="stringliteral">"XOR mismatch position = "</span> << pos << endl;</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>  </div>
<div class="line"><a name="l00112"></a><span class="lineno"> 112</span>  <span class="comment">// if we need to find only first mismatch we don't need a full</span></div>
<div class="line"><a name="l00113"></a><span class="lineno"> 113</span>  <span class="comment">// XOR product, we can use bvector<>::find_first_mismatch()</span></div>
<div class="line"><a name="l00114"></a><span class="lineno"> 114</span>  <span class="comment">//</span></div>
<div class="line"><a name="l00115"></a><span class="lineno"> 115</span>  f = bv2.<a class="code" href="classbm_1_1bvector.html#a8554bf7b4d276acc00cd31c87cc544ec">find_first_mismatch</a>(bv1, pos);</div>
<div class="line"><a name="l00116"></a><span class="lineno"> 116</span>  <span class="keywordflow">if</span> (f)</div>
<div class="line"><a name="l00117"></a><span class="lineno"> 117</span>  {</div>
<div class="line"><a name="l00118"></a><span class="lineno"> 118</span>  cout << <span class="stringliteral">"search mismatch position = "</span> << pos << endl;</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>  }</div>
<div class="line"><a name="l00121"></a><span class="lineno"> 121</span>  </div>
<div class="line"><a name="l00122"></a><span class="lineno"> 122</span>  bv2 ^= bv1; <span class="comment">// You can also use: bv2.bit_xor(bv1);</span></div>
<div class="line"><a name="l00123"></a><span class="lineno"> 123</span>  <a class="code" href="sample2_8cpp.html#ab6c059ad3ebaf673eb5b172691db4e3b">print_bvector</a>(bv2);</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>  <span class="comment">// For lexicographical comparison there is set of overloaded</span></div>
<div class="line"><a name="l00126"></a><span class="lineno"> 126</span>  <span class="comment">// operators and function compare (see also bvector<>::equal() )</span></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>  <span class="keywordflow">if</span> (bv2 == bv3)</div>
<div class="line"><a name="l00129"></a><span class="lineno"> 129</span>  {</div>
<div class="line"><a name="l00130"></a><span class="lineno"> 130</span>  cerr << <span class="stringliteral">"Equivalent. Comparison result = "</span></div>
<div class="line"><a name="l00131"></a><span class="lineno"> 131</span>  << bv2.compare(bv3) << endl;</div>
<div class="line"><a name="l00132"></a><span class="lineno"> 132</span>  }</div>
<div class="line"><a name="l00133"></a><span class="lineno"> 133</span>  <span class="keywordflow">else</span></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>  cout << <span class="stringliteral">"Error."</span> << endl;</div>
<div class="line"><a name="l00136"></a><span class="lineno"> 136</span>  <span class="keywordflow">return</span> 1;</div>
<div class="line"><a name="l00137"></a><span class="lineno"> 137</span>  }</div>
<div class="line"><a name="l00138"></a><span class="lineno"> 138</span>  }</div>
<div class="line"><a name="l00139"></a><span class="lineno"> 139</span>  <span class="keywordflow">catch</span>(std::exception& ex)</div>
<div class="line"><a name="l00140"></a><span class="lineno"> 140</span>  {</div>
<div class="line"><a name="l00141"></a><span class="lineno"> 141</span>  std::cerr << ex.what() << std::endl;</div>
<div class="line"><a name="l00142"></a><span class="lineno"> 142</span>  }</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>  </div>
<div class="line"><a name="l00145"></a><span class="lineno"> 145</span>  <span class="keywordflow">return</span> 0;</div>
<div class="line"><a name="l00146"></a><span class="lineno"> 146</span> }</div>
</div><!-- fragment --></div><!-- contents -->
<div class="ttc" id="asample2_8cpp_html_a840291bc02cba5474a4cb46a9b9566fe"><div class="ttname"><a href="sample2_8cpp.html#a840291bc02cba5474a4cb46a9b9566fe">main</a></div><div class="ttdeci">int main(void)</div><div class="ttdef"><b>Definition:</b> <a href="sample2_8cpp_source.html#l00053">sample2.cpp:53</a></div></div>
<div class="ttc" id="aclassbm_1_1bvector_html_a8554bf7b4d276acc00cd31c87cc544ec"><div class="ttname"><a href="classbm_1_1bvector.html#a8554bf7b4d276acc00cd31c87cc544ec">bm::bvector::find_first_mismatch</a></div><div class="ttdeci">bool find_first_mismatch(const bvector< Alloc > &bvect, size_type &pos, size_type search_to=bm::id_max) const BMNOEXCEPT</div><div class="ttdoc">Find index of first bit different between this and the agr vector.</div><div class="ttdef"><b>Definition:</b> <a href="bm_8h_source.html#l03277">bm.h:3277</a></div></div>
<div class="ttc" id="aclassbm_1_1bvector_html"><div class="ttname"><a href="classbm_1_1bvector.html">bm::bvector<></a></div></div>
<div class="ttc" id="aclassbm_1_1bvector_html_a52b4259a5cc4ebd8953832c696e24f02"><div class="ttname"><a href="classbm_1_1bvector.html#a52b4259a5cc4ebd8953832c696e24f02">bm::bvector::set</a></div><div class="ttdeci">bvector< Alloc > & set(size_type n, bool val=true)</div><div class="ttdoc">Sets bit n if val is true, clears bit n if val is false.</div><div class="ttdef"><b>Definition:</b> <a href="bm_8h_source.html#l03581">bm.h:3581</a></div></div>
<div class="ttc" id="aclassbm_1_1bvector_html_a08093c98bb6dfe27708357801aae7280"><div class="ttname"><a href="classbm_1_1bvector.html#a08093c98bb6dfe27708357801aae7280">bm::bvector::find</a></div><div class="ttdeci">bool find(size_type &pos) const BMNOEXCEPT</div><div class="ttdoc">Finds index of first 1 bit.</div><div class="ttdef"><b>Definition:</b> <a href="bm_8h_source.html#l04035">bm.h:4035</a></div></div>
<div class="ttc" id="asample2_8cpp_html_ab6c059ad3ebaf673eb5b172691db4e3b"><div class="ttname"><a href="sample2_8cpp.html#ab6c059ad3ebaf673eb5b172691db4e3b">print_bvector</a></div><div class="ttdeci">static void print_bvector(const bm::bvector<> &bv)</div><div class="ttdef"><b>Definition:</b> <a href="sample2_8cpp_source.html#l00034">sample2.cpp:34</a></div></div>
<div class="ttc" id="aclassbm_1_1bvector_html_a3a09e493d97f5a66b6ec4e14e04cf118"><div class="ttname"><a href="classbm_1_1bvector.html#a3a09e493d97f5a66b6ec4e14e04cf118">bm::bvector::get_next</a></div><div class="ttdeci">size_type get_next(size_type prev) const BMNOEXCEPT</div><div class="ttdoc">Finds the number of the next bit ON.</div><div class="ttdef"><b>Definition:</b> <a href="bm_8h_source.html#l01540">bm.h:1540</a></div></div>
<div class="ttc" id="aclassbm_1_1bvector_html_a9ab6964e14405327936d183a11dcd455"><div class="ttname"><a href="classbm_1_1bvector.html#a9ab6964e14405327936d183a11dcd455">bm::bvector::get_first</a></div><div class="ttdeci">size_type get_first() const BMNOEXCEPT</div><div class="ttdoc">find first 1 bit in vector. Function may return 0 and this requires an extra check if bit 0 is actual...</div><div class="ttdef"><b>Definition:</b> <a href="bm_8h_source.html#l01531">bm.h:1531</a></div></div>
<div class="ttc" id="aclassbm_1_1bvector_html_a405dd9ed048c935c84a5086ec8ba3649"><div class="ttname"><a href="classbm_1_1bvector.html#a405dd9ed048c935c84a5086ec8ba3649">bm::bvector::size_type</a></div><div class="ttdeci">bm::id_t size_type</div><div class="ttdef"><b>Definition:</b> <a href="bm_8h_source.html#l00117">bm.h:117</a></div></div>
<div class="ttc" id="abm_8h_html"><div class="ttname"><a href="bm_8h.html">bm.h</a></div><div class="ttdoc">Compressed bit-vector bvector<> container, set algebraic methods, traversal iterators.</div></div>
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