| <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> |
| <html xmlns="http://www.w3.org/1999/xhtml" lang="en-US"> |
| <head> |
| <meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/> |
| <meta http-equiv="X-UA-Compatible" content="IE=11"/> |
| <meta name="generator" content="Doxygen 1.9.8"/> |
| <meta name="viewport" content="width=device-width, initial-scale=1"/> |
| <title>datasketches-cpp: sampling/include/var_opt_union_impl.hpp Source File</title> |
| <link href="tabs.css" rel="stylesheet" type="text/css"/> |
| <script type="text/javascript" src="jquery.js"></script> |
| <script type="text/javascript" src="dynsections.js"></script> |
| <link href="search/search.css" rel="stylesheet" type="text/css"/> |
| <script type="text/javascript" src="search/searchdata.js"></script> |
| <script type="text/javascript" src="search/search.js"></script> |
| <link href="doxygen.css" rel="stylesheet" type="text/css" /> |
| </head> |
| <body> |
| <div id="top"><!-- do not remove this div, it is closed by doxygen! --> |
| <div id="titlearea"> |
| <table cellspacing="0" cellpadding="0"> |
| <tbody> |
| <tr id="projectrow"> |
| <td id="projectalign"> |
| <div id="projectname">datasketches-cpp |
| </div> |
| </td> |
| </tr> |
| </tbody> |
| </table> |
| </div> |
| <!-- end header part --> |
| <!-- Generated by Doxygen 1.9.8 --> |
| <script type="text/javascript"> |
| /* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */ |
| var searchBox = new SearchBox("searchBox", "search/",'.html'); |
| /* @license-end */ |
| </script> |
| <script type="text/javascript" src="menudata.js"></script> |
| <script type="text/javascript" src="menu.js"></script> |
| <script type="text/javascript"> |
| /* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */ |
| $(function() { |
| initMenu('',true,false,'search.php','Search'); |
| $(document).ready(function() { init_search(); }); |
| }); |
| /* @license-end */ |
| </script> |
| <div id="main-nav"></div> |
| <script type="text/javascript"> |
| /* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&dn=expat.txt MIT */ |
| $(document).ready(function() { init_codefold(0); }); |
| /* @license-end */ |
| </script> |
| <!-- window showing the filter options --> |
| <div id="MSearchSelectWindow" |
| onmouseover="return searchBox.OnSearchSelectShow()" |
| onmouseout="return searchBox.OnSearchSelectHide()" |
| onkeydown="return searchBox.OnSearchSelectKey(event)"> |
| </div> |
| |
| <!-- iframe showing the search results (closed by default) --> |
| <div id="MSearchResultsWindow"> |
| <div id="MSearchResults"> |
| <div class="SRPage"> |
| <div id="SRIndex"> |
| <div id="SRResults"></div> |
| <div class="SRStatus" id="Loading">Loading...</div> |
| <div class="SRStatus" id="Searching">Searching...</div> |
| <div class="SRStatus" id="NoMatches">No Matches</div> |
| </div> |
| </div> |
| </div> |
| </div> |
| |
| <div id="nav-path" class="navpath"> |
| <ul> |
| <li class="navelem"><a class="el" href="dir_135820457b1e8e8dc5343e26fb29c1f8.html">sampling</a></li><li class="navelem"><a class="el" href="dir_577378e109fcef5e822b70d599376114.html">include</a></li> </ul> |
| </div> |
| </div><!-- top --> |
| <div class="header"> |
| <div class="headertitle"><div class="title">var_opt_union_impl.hpp</div></div> |
| </div><!--header--> |
| <div class="contents"> |
| <div class="fragment"><div class="line"><a id="l00001" name="l00001"></a><span class="lineno"> 1</span><span class="comment">/*</span></div> |
| <div class="line"><a id="l00002" name="l00002"></a><span class="lineno"> 2</span><span class="comment"> * Licensed to the Apache Software Foundation (ASF) under one</span></div> |
| <div class="line"><a id="l00003" name="l00003"></a><span class="lineno"> 3</span><span class="comment"> * or more contributor license agreements. See the NOTICE file</span></div> |
| <div class="line"><a id="l00004" name="l00004"></a><span class="lineno"> 4</span><span class="comment"> * distributed with this work for additional information</span></div> |
| <div class="line"><a id="l00005" name="l00005"></a><span class="lineno"> 5</span><span class="comment"> * regarding copyright ownership. The ASF licenses this file</span></div> |
| <div class="line"><a id="l00006" name="l00006"></a><span class="lineno"> 6</span><span class="comment"> * to you under the Apache License, Version 2.0 (the</span></div> |
| <div class="line"><a id="l00007" name="l00007"></a><span class="lineno"> 7</span><span class="comment"> * "License"); you may not use this file except in compliance</span></div> |
| <div class="line"><a id="l00008" name="l00008"></a><span class="lineno"> 8</span><span class="comment"> * with the License. You may obtain a copy of the License at</span></div> |
| <div class="line"><a id="l00009" name="l00009"></a><span class="lineno"> 9</span><span class="comment"> *</span></div> |
| <div class="line"><a id="l00010" name="l00010"></a><span class="lineno"> 10</span><span class="comment"> * http://www.apache.org/licenses/LICENSE-2.0</span></div> |
| <div class="line"><a id="l00011" name="l00011"></a><span class="lineno"> 11</span><span class="comment"> *</span></div> |
| <div class="line"><a id="l00012" name="l00012"></a><span class="lineno"> 12</span><span class="comment"> * Unless required by applicable law or agreed to in writing,</span></div> |
| <div class="line"><a id="l00013" name="l00013"></a><span class="lineno"> 13</span><span class="comment"> * software distributed under the License is distributed on an</span></div> |
| <div class="line"><a id="l00014" name="l00014"></a><span class="lineno"> 14</span><span class="comment"> * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div> |
| <div class="line"><a id="l00015" name="l00015"></a><span class="lineno"> 15</span><span class="comment"> * KIND, either express or implied. See the License for the</span></div> |
| <div class="line"><a id="l00016" name="l00016"></a><span class="lineno"> 16</span><span class="comment"> * specific language governing permissions and limitations</span></div> |
| <div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment"> * under the License.</span></div> |
| <div class="line"><a id="l00018" name="l00018"></a><span class="lineno"> 18</span><span class="comment"> */</span></div> |
| <div class="line"><a id="l00019" name="l00019"></a><span class="lineno"> 19</span> </div> |
| <div class="line"><a id="l00020" name="l00020"></a><span class="lineno"> 20</span><span class="preprocessor">#ifndef _VAR_OPT_UNION_IMPL_HPP_</span></div> |
| <div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</span><span class="preprocessor">#define _VAR_OPT_UNION_IMPL_HPP_</span></div> |
| <div class="line"><a id="l00022" name="l00022"></a><span class="lineno"> 22</span> </div> |
| <div class="line"><a id="l00023" name="l00023"></a><span class="lineno"> 23</span><span class="preprocessor">#include "var_opt_union.hpp"</span></div> |
| <div class="line"><a id="l00024" name="l00024"></a><span class="lineno"> 24</span> </div> |
| <div class="line"><a id="l00025" name="l00025"></a><span class="lineno"> 25</span><span class="preprocessor">#include <cmath></span></div> |
| <div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include <sstream></span></div> |
| <div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include <stdexcept></span></div> |
| <div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span> </div> |
| <div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespacedatasketches.html">datasketches</a> {</div> |
| <div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span> </div> |
| <div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span>var_opt_union<T, A>::var_opt_union(uint32_t max_k, <span class="keyword">const</span> A& allocator) :</div> |
| <div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span> n_(0),</div> |
| <div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> outer_tau_numer_(0.0),</div> |
| <div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span> outer_tau_denom_(0),</div> |
| <div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> max_k_(max_k),</div> |
| <div class="line"><a id="l00037" name="l00037"></a><span class="lineno"> 37</span> allocator_(allocator),</div> |
| <div class="line"><a id="l00038" name="l00038"></a><span class="lineno"> 38</span> gadget_(max_k, var_opt_sketch<T, A>::<a class="code hl_variable" href="namespacedatasketches_1_1theta__constants.html#a02799eee5e87428b1c72e6c4c282d68e">DEFAULT_RESIZE_FACTOR</a>, true, allocator)</div> |
| <div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span>{}</div> |
| <div class="line"><a id="l00040" name="l00040"></a><span class="lineno"> 40</span> </div> |
| <div class="line"><a id="l00041" name="l00041"></a><span class="lineno"> 41</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00042" name="l00042"></a><span class="lineno"> 42</span>var_opt_union<T, A>::var_opt_union(<span class="keyword">const</span> var_opt_union& other) :</div> |
| <div class="line"><a id="l00043" name="l00043"></a><span class="lineno"> 43</span> n_(other.n_),</div> |
| <div class="line"><a id="l00044" name="l00044"></a><span class="lineno"> 44</span> outer_tau_numer_(other.outer_tau_numer_),</div> |
| <div class="line"><a id="l00045" name="l00045"></a><span class="lineno"> 45</span> outer_tau_denom_(other.outer_tau_denom_),</div> |
| <div class="line"><a id="l00046" name="l00046"></a><span class="lineno"> 46</span> max_k_(other.max_k_),</div> |
| <div class="line"><a id="l00047" name="l00047"></a><span class="lineno"> 47</span> allocator_(other.allocator_),</div> |
| <div class="line"><a id="l00048" name="l00048"></a><span class="lineno"> 48</span> gadget_(other.gadget_)</div> |
| <div class="line"><a id="l00049" name="l00049"></a><span class="lineno"> 49</span>{}</div> |
| <div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span> </div> |
| <div class="line"><a id="l00051" name="l00051"></a><span class="lineno"> 51</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span>var_opt_union<T, A>::var_opt_union(var_opt_union&& other) noexcept :</div> |
| <div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> n_(other.n_),</div> |
| <div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> outer_tau_numer_(other.outer_tau_numer_),</div> |
| <div class="line"><a id="l00055" name="l00055"></a><span class="lineno"> 55</span> outer_tau_denom_(other.outer_tau_denom_),</div> |
| <div class="line"><a id="l00056" name="l00056"></a><span class="lineno"> 56</span> max_k_(other.max_k_),</div> |
| <div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> allocator_(other.allocator_),</div> |
| <div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> gadget_(std::move(other.gadget_))</div> |
| <div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span>{}</div> |
| <div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> </div> |
| <div class="line"><a id="l00061" name="l00061"></a><span class="lineno"> 61</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00062" name="l00062"></a><span class="lineno"> 62</span>var_opt_union<T, A>::var_opt_union(uint64_t n, <span class="keywordtype">double</span> outer_tau_numer, uint64_t outer_tau_denom,</div> |
| <div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> uint32_t max_k, var_opt_sketch<T, A>&& gadget, <span class="keyword">const</span> A& allocator) :</div> |
| <div class="line"><a id="l00064" name="l00064"></a><span class="lineno"> 64</span> n_(n),</div> |
| <div class="line"><a id="l00065" name="l00065"></a><span class="lineno"> 65</span> outer_tau_numer_(outer_tau_numer),</div> |
| <div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> outer_tau_denom_(outer_tau_denom),</div> |
| <div class="line"><a id="l00067" name="l00067"></a><span class="lineno"> 67</span> max_k_(max_k),</div> |
| <div class="line"><a id="l00068" name="l00068"></a><span class="lineno"> 68</span> allocator_(allocator),</div> |
| <div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> gadget_(gadget)</div> |
| <div class="line"><a id="l00070" name="l00070"></a><span class="lineno"> 70</span>{}</div> |
| <div class="line"><a id="l00071" name="l00071"></a><span class="lineno"> 71</span> </div> |
| <div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span>var_opt_union<T, A>::~var_opt_union() {}</div> |
| <div class="line"><a id="l00074" name="l00074"></a><span class="lineno"> 74</span> </div> |
| <div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span>var_opt_union<T, A>& var_opt_union<T, A>::operator=(<span class="keyword">const</span> var_opt_union& other) {</div> |
| <div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> var_opt_union union_copy(other);</div> |
| <div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> std::swap(n_, union_copy.n_);</div> |
| <div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> std::swap(outer_tau_numer_, union_copy.outer_tau_numer_);</div> |
| <div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> std::swap(outer_tau_denom_, union_copy.outer_tau_denom_);</div> |
| <div class="line"><a id="l00081" name="l00081"></a><span class="lineno"> 81</span> std::swap(max_k_, union_copy.max_k_);</div> |
| <div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> std::swap(allocator_, other.allocator_);</div> |
| <div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> std::swap(gadget_, union_copy.gadget_);</div> |
| <div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div> |
| <div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span>}</div> |
| <div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> </div> |
| <div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span>var_opt_union<T, A>& var_opt_union<T, A>::operator=(var_opt_union&& other) {</div> |
| <div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> std::swap(n_, other.n_);</div> |
| <div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> std::swap(outer_tau_numer_, other.outer_tau_numer_);</div> |
| <div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> std::swap(outer_tau_denom_, other.outer_tau_denom_);</div> |
| <div class="line"><a id="l00092" name="l00092"></a><span class="lineno"> 92</span> std::swap(max_k_, other.max_k_);</div> |
| <div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> std::swap(allocator_, other.allocator_);</div> |
| <div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> std::swap(gadget_, other.gadget_);</div> |
| <div class="line"><a id="l00095" name="l00095"></a><span class="lineno"> 95</span> <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div> |
| <div class="line"><a id="l00096" name="l00096"></a><span class="lineno"> 96</span>}</div> |
| <div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> </div> |
| <div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span><span class="comment">/*</span></div> |
| <div class="line"><a id="l00099" name="l00099"></a><span class="lineno"> 99</span><span class="comment"> * An empty union requires 8 bytes.</span></div> |
| <div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span><span class="comment"> *</span></div> |
| <div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span><span class="comment"> * <pre></span></div> |
| <div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span><span class="comment"> * Long || Start Byte Adr:</span></div> |
| <div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span><span class="comment"> * Adr:</span></div> |
| <div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span><span class="comment"> * || 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |</span></div> |
| <div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span><span class="comment"> * 0 || Preamble_Longs | SerVer | FamID | Flags |---------Max Res. Size (K)---------|</span></div> |
| <div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span><span class="comment"> * </pre></span></div> |
| <div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span><span class="comment"> *</span></div> |
| <div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span><span class="comment"> * A non-empty sketch requires 24 bytes of preamble for an under-full sample; once there are</span></div> |
| <div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span><span class="comment"> * at least k items the sketch uses 32 bytes of preamble.</span></div> |
| <div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span><span class="comment"> *</span></div> |
| <div class="line"><a id="l00111" name="l00111"></a><span class="lineno"> 111</span><span class="comment"> * The count of items seen is limited to 48 bits (~256 trillion) even though there are adjacent</span></div> |
| <div class="line"><a id="l00112" name="l00112"></a><span class="lineno"> 112</span><span class="comment"> * unused preamble bits. The acceptance probability for an item is a double in the range [0,1),</span></div> |
| <div class="line"><a id="l00113" name="l00113"></a><span class="lineno"> 113</span><span class="comment"> * limiting us to 53 bits of randomness due to details of the IEEE floating point format. To</span></div> |
| <div class="line"><a id="l00114" name="l00114"></a><span class="lineno"> 114</span><span class="comment"> * ensure meaningful probabilities as the items seen count approaches capacity, we intentionally</span></div> |
| <div class="line"><a id="l00115" name="l00115"></a><span class="lineno"> 115</span><span class="comment"> * use slightly fewer bits.</span></div> |
| <div class="line"><a id="l00116" name="l00116"></a><span class="lineno"> 116</span><span class="comment"> * </span></div> |
| <div class="line"><a id="l00117" name="l00117"></a><span class="lineno"> 117</span><span class="comment"> * Following the header are weights for the heavy items, then marks in the event this is a gadget.</span></div> |
| <div class="line"><a id="l00118" name="l00118"></a><span class="lineno"> 118</span><span class="comment"> * The serialized items come last.</span></div> |
| <div class="line"><a id="l00119" name="l00119"></a><span class="lineno"> 119</span><span class="comment"> * </span></div> |
| <div class="line"><a id="l00120" name="l00120"></a><span class="lineno"> 120</span><span class="comment"> * <pre></span></div> |
| <div class="line"><a id="l00121" name="l00121"></a><span class="lineno"> 121</span><span class="comment"> * Long || Start Byte Adr:</span></div> |
| <div class="line"><a id="l00122" name="l00122"></a><span class="lineno"> 122</span><span class="comment"> * Adr:</span></div> |
| <div class="line"><a id="l00123" name="l00123"></a><span class="lineno"> 123</span><span class="comment"> * || 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |</span></div> |
| <div class="line"><a id="l00124" name="l00124"></a><span class="lineno"> 124</span><span class="comment"> * 0 || Preamble_Longs | SerVer | FamID | Flags |---------Max Res. Size (K)---------|</span></div> |
| <div class="line"><a id="l00125" name="l00125"></a><span class="lineno"> 125</span><span class="comment"> *</span></div> |
| <div class="line"><a id="l00126" name="l00126"></a><span class="lineno"> 126</span><span class="comment"> * || 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |</span></div> |
| <div class="line"><a id="l00127" name="l00127"></a><span class="lineno"> 127</span><span class="comment"> * 1 ||---------------------------Items Seen Count (N)--------------------------------|</span></div> |
| <div class="line"><a id="l00128" name="l00128"></a><span class="lineno"> 128</span><span class="comment"> *</span></div> |
| <div class="line"><a id="l00129" name="l00129"></a><span class="lineno"> 129</span><span class="comment"> * || 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 |</span></div> |
| <div class="line"><a id="l00130" name="l00130"></a><span class="lineno"> 130</span><span class="comment"> * 2 ||------------------------Outer Tau Numerator (double)---------------------------|</span></div> |
| <div class="line"><a id="l00131" name="l00131"></a><span class="lineno"> 131</span><span class="comment"> *</span></div> |
| <div class="line"><a id="l00132" name="l00132"></a><span class="lineno"> 132</span><span class="comment"> * || 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |</span></div> |
| <div class="line"><a id="l00133" name="l00133"></a><span class="lineno"> 133</span><span class="comment"> * 3 ||----------------------Outer Tau Denominator (uint64_t)-------------------------|</span></div> |
| <div class="line"><a id="l00134" name="l00134"></a><span class="lineno"> 134</span><span class="comment"> * </pre></span></div> |
| <div class="line"><a id="l00135" name="l00135"></a><span class="lineno"> 135</span><span class="comment"> */</span></div> |
| <div class="line"><a id="l00136" name="l00136"></a><span class="lineno"> 136</span> </div> |
| <div class="line"><a id="l00137" name="l00137"></a><span class="lineno"> 137</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00138" name="l00138"></a><span class="lineno"> 138</span><span class="keyword">template</span><<span class="keyword">typename</span> SerDe></div> |
| <div class="line"><a id="l00139" name="l00139"></a><span class="lineno"> 139</span>var_opt_union<T, A> var_opt_union<T, A>::deserialize(std::istream& is, <span class="keyword">const</span> SerDe& sd, <span class="keyword">const</span> A& allocator) {</div> |
| <div class="line"><a id="l00140" name="l00140"></a><span class="lineno"> 140</span> <span class="keyword">const</span> <span class="keyword">auto</span> preamble_longs = read<uint8_t>(is);</div> |
| <div class="line"><a id="l00141" name="l00141"></a><span class="lineno"> 141</span> <span class="keyword">const</span> <span class="keyword">auto</span> serial_version = read<uint8_t>(is);</div> |
| <div class="line"><a id="l00142" name="l00142"></a><span class="lineno"> 142</span> <span class="keyword">const</span> <span class="keyword">auto</span> family_id = read<uint8_t>(is);</div> |
| <div class="line"><a id="l00143" name="l00143"></a><span class="lineno"> 143</span> <span class="keyword">const</span> <span class="keyword">auto</span> flags = read<uint8_t>(is);</div> |
| <div class="line"><a id="l00144" name="l00144"></a><span class="lineno"> 144</span> <span class="keyword">const</span> <span class="keyword">auto</span> max_k = read<uint32_t>(is);</div> |
| <div class="line"><a id="l00145" name="l00145"></a><span class="lineno"> 145</span> </div> |
| <div class="line"><a id="l00146" name="l00146"></a><span class="lineno"> 146</span> check_preamble_longs(preamble_longs, flags);</div> |
| <div class="line"><a id="l00147" name="l00147"></a><span class="lineno"> 147</span> check_family_and_serialization_version(family_id, serial_version);</div> |
| <div class="line"><a id="l00148" name="l00148"></a><span class="lineno"> 148</span> </div> |
| <div class="line"><a id="l00149" name="l00149"></a><span class="lineno"> 149</span> <span class="keywordflow">if</span> (max_k == 0 || max_k > var_opt_constants::MAX_K) {</div> |
| <div class="line"><a id="l00150" name="l00150"></a><span class="lineno"> 150</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"k must be at least 1 and less than 2^31 - 1"</span>);</div> |
| <div class="line"><a id="l00151" name="l00151"></a><span class="lineno"> 151</span> }</div> |
| <div class="line"><a id="l00152" name="l00152"></a><span class="lineno"> 152</span> </div> |
| <div class="line"><a id="l00153" name="l00153"></a><span class="lineno"> 153</span> <span class="keywordtype">bool</span> is_empty = flags & EMPTY_FLAG_MASK;</div> |
| <div class="line"><a id="l00154" name="l00154"></a><span class="lineno"> 154</span> </div> |
| <div class="line"><a id="l00155" name="l00155"></a><span class="lineno"> 155</span> <span class="keywordflow">if</span> (is_empty) {</div> |
| <div class="line"><a id="l00156" name="l00156"></a><span class="lineno"> 156</span> <span class="keywordflow">if</span> (!is.good())</div> |
| <div class="line"><a id="l00157" name="l00157"></a><span class="lineno"> 157</span> <span class="keywordflow">throw</span> std::runtime_error(<span class="stringliteral">"error reading from std::istream"</span>); </div> |
| <div class="line"><a id="l00158" name="l00158"></a><span class="lineno"> 158</span> <span class="keywordflow">else</span></div> |
| <div class="line"><a id="l00159" name="l00159"></a><span class="lineno"> 159</span> <span class="keywordflow">return</span> var_opt_union(max_k);</div> |
| <div class="line"><a id="l00160" name="l00160"></a><span class="lineno"> 160</span> }</div> |
| <div class="line"><a id="l00161" name="l00161"></a><span class="lineno"> 161</span> </div> |
| <div class="line"><a id="l00162" name="l00162"></a><span class="lineno"> 162</span> <span class="keyword">const</span> <span class="keyword">auto</span> items_seen = read<uint64_t>(is);</div> |
| <div class="line"><a id="l00163" name="l00163"></a><span class="lineno"> 163</span> <span class="keyword">const</span> <span class="keyword">auto</span> outer_tau_numer = read<double>(is);</div> |
| <div class="line"><a id="l00164" name="l00164"></a><span class="lineno"> 164</span> <span class="keyword">const</span> <span class="keyword">auto</span> outer_tau_denom = read<uint64_t>(is);</div> |
| <div class="line"><a id="l00165" name="l00165"></a><span class="lineno"> 165</span> </div> |
| <div class="line"><a id="l00166" name="l00166"></a><span class="lineno"> 166</span> var_opt_sketch<T, A> gadget = var_opt_sketch<T, A>::deserialize(is, sd, allocator);</div> |
| <div class="line"><a id="l00167" name="l00167"></a><span class="lineno"> 167</span> </div> |
| <div class="line"><a id="l00168" name="l00168"></a><span class="lineno"> 168</span> <span class="keywordflow">if</span> (!is.good())</div> |
| <div class="line"><a id="l00169" name="l00169"></a><span class="lineno"> 169</span> <span class="keywordflow">throw</span> std::runtime_error(<span class="stringliteral">"error reading from std::istream"</span>); </div> |
| <div class="line"><a id="l00170" name="l00170"></a><span class="lineno"> 170</span> </div> |
| <div class="line"><a id="l00171" name="l00171"></a><span class="lineno"> 171</span> <span class="keywordflow">return</span> var_opt_union(items_seen, outer_tau_numer, outer_tau_denom, max_k, std::move(gadget), allocator);</div> |
| <div class="line"><a id="l00172" name="l00172"></a><span class="lineno"> 172</span>}</div> |
| <div class="line"><a id="l00173" name="l00173"></a><span class="lineno"> 173</span> </div> |
| <div class="line"><a id="l00174" name="l00174"></a><span class="lineno"> 174</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00175" name="l00175"></a><span class="lineno"> 175</span><span class="keyword">template</span><<span class="keyword">typename</span> SerDe></div> |
| <div class="line"><a id="l00176" name="l00176"></a><span class="lineno"> 176</span>var_opt_union<T, A> var_opt_union<T, A>::deserialize(<span class="keyword">const</span> <span class="keywordtype">void</span>* bytes, <span class="keywordtype">size_t</span> size, <span class="keyword">const</span> SerDe& sd, <span class="keyword">const</span> A& allocator) {</div> |
| <div class="line"><a id="l00177" name="l00177"></a><span class="lineno"> 177</span> ensure_minimum_memory(size, 8);</div> |
| <div class="line"><a id="l00178" name="l00178"></a><span class="lineno"> 178</span> <span class="keyword">const</span> <span class="keywordtype">char</span>* ptr = <span class="keyword">static_cast<</span><span class="keyword">const </span><span class="keywordtype">char</span>*<span class="keyword">></span>(bytes);</div> |
| <div class="line"><a id="l00179" name="l00179"></a><span class="lineno"> 179</span> uint8_t preamble_longs;</div> |
| <div class="line"><a id="l00180" name="l00180"></a><span class="lineno"> 180</span> ptr += copy_from_mem(ptr, preamble_longs);</div> |
| <div class="line"><a id="l00181" name="l00181"></a><span class="lineno"> 181</span> uint8_t serial_version;</div> |
| <div class="line"><a id="l00182" name="l00182"></a><span class="lineno"> 182</span> ptr += copy_from_mem(ptr, serial_version);</div> |
| <div class="line"><a id="l00183" name="l00183"></a><span class="lineno"> 183</span> uint8_t family_id;</div> |
| <div class="line"><a id="l00184" name="l00184"></a><span class="lineno"> 184</span> ptr += copy_from_mem(ptr, family_id);</div> |
| <div class="line"><a id="l00185" name="l00185"></a><span class="lineno"> 185</span> uint8_t flags;</div> |
| <div class="line"><a id="l00186" name="l00186"></a><span class="lineno"> 186</span> ptr += copy_from_mem(ptr, flags);</div> |
| <div class="line"><a id="l00187" name="l00187"></a><span class="lineno"> 187</span> uint32_t max_k;</div> |
| <div class="line"><a id="l00188" name="l00188"></a><span class="lineno"> 188</span> ptr += copy_from_mem(ptr, max_k);</div> |
| <div class="line"><a id="l00189" name="l00189"></a><span class="lineno"> 189</span> </div> |
| <div class="line"><a id="l00190" name="l00190"></a><span class="lineno"> 190</span> check_preamble_longs(preamble_longs, flags);</div> |
| <div class="line"><a id="l00191" name="l00191"></a><span class="lineno"> 191</span> check_family_and_serialization_version(family_id, serial_version);</div> |
| <div class="line"><a id="l00192" name="l00192"></a><span class="lineno"> 192</span> </div> |
| <div class="line"><a id="l00193" name="l00193"></a><span class="lineno"> 193</span> <span class="keywordflow">if</span> (max_k == 0 || max_k > var_opt_constants::MAX_K) {</div> |
| <div class="line"><a id="l00194" name="l00194"></a><span class="lineno"> 194</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"k must be at least 1 and less than 2^31 - 1"</span>);</div> |
| <div class="line"><a id="l00195" name="l00195"></a><span class="lineno"> 195</span> }</div> |
| <div class="line"><a id="l00196" name="l00196"></a><span class="lineno"> 196</span> </div> |
| <div class="line"><a id="l00197" name="l00197"></a><span class="lineno"> 197</span> <span class="keywordtype">bool</span> is_empty = flags & EMPTY_FLAG_MASK;</div> |
| <div class="line"><a id="l00198" name="l00198"></a><span class="lineno"> 198</span> </div> |
| <div class="line"><a id="l00199" name="l00199"></a><span class="lineno"> 199</span> <span class="keywordflow">if</span> (is_empty) {</div> |
| <div class="line"><a id="l00200" name="l00200"></a><span class="lineno"> 200</span> <span class="keywordflow">return</span> var_opt_union(max_k);</div> |
| <div class="line"><a id="l00201" name="l00201"></a><span class="lineno"> 201</span> }</div> |
| <div class="line"><a id="l00202" name="l00202"></a><span class="lineno"> 202</span> </div> |
| <div class="line"><a id="l00203" name="l00203"></a><span class="lineno"> 203</span> uint64_t items_seen;</div> |
| <div class="line"><a id="l00204" name="l00204"></a><span class="lineno"> 204</span> ptr += copy_from_mem(ptr, items_seen);</div> |
| <div class="line"><a id="l00205" name="l00205"></a><span class="lineno"> 205</span> <span class="keywordtype">double</span> outer_tau_numer;</div> |
| <div class="line"><a id="l00206" name="l00206"></a><span class="lineno"> 206</span> ptr += copy_from_mem(ptr, outer_tau_numer);</div> |
| <div class="line"><a id="l00207" name="l00207"></a><span class="lineno"> 207</span> uint64_t outer_tau_denom;</div> |
| <div class="line"><a id="l00208" name="l00208"></a><span class="lineno"> 208</span> ptr += copy_from_mem(ptr, outer_tau_denom);</div> |
| <div class="line"><a id="l00209" name="l00209"></a><span class="lineno"> 209</span> </div> |
| <div class="line"><a id="l00210" name="l00210"></a><span class="lineno"> 210</span> <span class="keyword">const</span> <span class="keywordtype">size_t</span> gadget_size = size - (PREAMBLE_LONGS_NON_EMPTY << 3);</div> |
| <div class="line"><a id="l00211" name="l00211"></a><span class="lineno"> 211</span> var_opt_sketch<T, A> gadget = var_opt_sketch<T, A>::deserialize(ptr, gadget_size, sd, allocator);</div> |
| <div class="line"><a id="l00212" name="l00212"></a><span class="lineno"> 212</span> </div> |
| <div class="line"><a id="l00213" name="l00213"></a><span class="lineno"> 213</span> <span class="keywordflow">return</span> var_opt_union(items_seen, outer_tau_numer, outer_tau_denom, max_k, std::move(gadget), allocator);</div> |
| <div class="line"><a id="l00214" name="l00214"></a><span class="lineno"> 214</span>}</div> |
| <div class="line"><a id="l00215" name="l00215"></a><span class="lineno"> 215</span> </div> |
| <div class="line"><a id="l00216" name="l00216"></a><span class="lineno"> 216</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00217" name="l00217"></a><span class="lineno"> 217</span><span class="keyword">template</span><<span class="keyword">typename</span> SerDe></div> |
| <div class="foldopen" id="foldopen00218" data-start="{" data-end="}"> |
| <div class="line"><a id="l00218" name="l00218"></a><span class="lineno"><a class="line" href="classdatasketches_1_1var__opt__union.html#a8762fed25b3024f07989976344dd0afb"> 218</a></span><span class="keywordtype">size_t</span> <a class="code hl_class" href="classdatasketches_1_1var__opt__union.html">var_opt_union<T, A>::get_serialized_size_bytes</a>(<span class="keyword">const</span> SerDe& sd)<span class="keyword"> const </span>{</div> |
| <div class="line"><a id="l00219" name="l00219"></a><span class="lineno"> 219</span> <span class="keywordflow">if</span> (n_ == 0) {</div> |
| <div class="line"><a id="l00220" name="l00220"></a><span class="lineno"> 220</span> <span class="keywordflow">return</span> PREAMBLE_LONGS_EMPTY << 3;</div> |
| <div class="line"><a id="l00221" name="l00221"></a><span class="lineno"> 221</span> } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a id="l00222" name="l00222"></a><span class="lineno"> 222</span> <span class="keywordflow">return</span> (PREAMBLE_LONGS_NON_EMPTY << 3) + gadget_.<a class="code hl_function" href="classdatasketches_1_1var__opt__union.html#a8762fed25b3024f07989976344dd0afb">get_serialized_size_bytes</a>(sd);</div> |
| <div class="line"><a id="l00223" name="l00223"></a><span class="lineno"> 223</span> }</div> |
| <div class="line"><a id="l00224" name="l00224"></a><span class="lineno"> 224</span>}</div> |
| </div> |
| <div class="line"><a id="l00225" name="l00225"></a><span class="lineno"> 225</span> </div> |
| <div class="line"><a id="l00226" name="l00226"></a><span class="lineno"> 226</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00227" name="l00227"></a><span class="lineno"> 227</span><span class="keyword">template</span><<span class="keyword">typename</span> SerDe></div> |
| <div class="foldopen" id="foldopen00228" data-start="{" data-end="}"> |
| <div class="line"><a id="l00228" name="l00228"></a><span class="lineno"><a class="line" href="classdatasketches_1_1var__opt__union.html#a538940c100e4353b3671ad452d3d3056"> 228</a></span><span class="keywordtype">void</span> <a class="code hl_class" href="classdatasketches_1_1var__opt__union.html">var_opt_union<T, A>::serialize</a>(std::ostream& os, <span class="keyword">const</span> SerDe& sd)<span class="keyword"> const </span>{</div> |
| <div class="line"><a id="l00229" name="l00229"></a><span class="lineno"> 229</span> <span class="keywordtype">bool</span> empty = (n_ == 0);</div> |
| <div class="line"><a id="l00230" name="l00230"></a><span class="lineno"> 230</span> </div> |
| <div class="line"><a id="l00231" name="l00231"></a><span class="lineno"> 231</span> <span class="keyword">const</span> uint8_t serialization_version(SER_VER);</div> |
| <div class="line"><a id="l00232" name="l00232"></a><span class="lineno"> 232</span> <span class="keyword">const</span> uint8_t family_id(FAMILY_ID);</div> |
| <div class="line"><a id="l00233" name="l00233"></a><span class="lineno"> 233</span> </div> |
| <div class="line"><a id="l00234" name="l00234"></a><span class="lineno"> 234</span> uint8_t preamble_longs;</div> |
| <div class="line"><a id="l00235" name="l00235"></a><span class="lineno"> 235</span> uint8_t flags;</div> |
| <div class="line"><a id="l00236" name="l00236"></a><span class="lineno"> 236</span> <span class="keywordflow">if</span> (empty) {</div> |
| <div class="line"><a id="l00237" name="l00237"></a><span class="lineno"> 237</span> preamble_longs = PREAMBLE_LONGS_EMPTY;</div> |
| <div class="line"><a id="l00238" name="l00238"></a><span class="lineno"> 238</span> flags = EMPTY_FLAG_MASK;</div> |
| <div class="line"><a id="l00239" name="l00239"></a><span class="lineno"> 239</span> } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a id="l00240" name="l00240"></a><span class="lineno"> 240</span> preamble_longs = PREAMBLE_LONGS_NON_EMPTY;</div> |
| <div class="line"><a id="l00241" name="l00241"></a><span class="lineno"> 241</span> flags = 0;</div> |
| <div class="line"><a id="l00242" name="l00242"></a><span class="lineno"> 242</span> }</div> |
| <div class="line"><a id="l00243" name="l00243"></a><span class="lineno"> 243</span> </div> |
| <div class="line"><a id="l00244" name="l00244"></a><span class="lineno"> 244</span> write(os, preamble_longs);</div> |
| <div class="line"><a id="l00245" name="l00245"></a><span class="lineno"> 245</span> write(os, serialization_version);</div> |
| <div class="line"><a id="l00246" name="l00246"></a><span class="lineno"> 246</span> write(os, family_id);</div> |
| <div class="line"><a id="l00247" name="l00247"></a><span class="lineno"> 247</span> write(os, flags);</div> |
| <div class="line"><a id="l00248" name="l00248"></a><span class="lineno"> 248</span> write(os, max_k_);</div> |
| <div class="line"><a id="l00249" name="l00249"></a><span class="lineno"> 249</span> </div> |
| <div class="line"><a id="l00250" name="l00250"></a><span class="lineno"> 250</span> <span class="keywordflow">if</span> (!empty) {</div> |
| <div class="line"><a id="l00251" name="l00251"></a><span class="lineno"> 251</span> write(os, n_);</div> |
| <div class="line"><a id="l00252" name="l00252"></a><span class="lineno"> 252</span> write(os, outer_tau_numer_);</div> |
| <div class="line"><a id="l00253" name="l00253"></a><span class="lineno"> 253</span> write(os, outer_tau_denom_);</div> |
| <div class="line"><a id="l00254" name="l00254"></a><span class="lineno"> 254</span> gadget_.serialize(os, sd);</div> |
| <div class="line"><a id="l00255" name="l00255"></a><span class="lineno"> 255</span> }</div> |
| <div class="line"><a id="l00256" name="l00256"></a><span class="lineno"> 256</span>}</div> |
| </div> |
| <div class="line"><a id="l00257" name="l00257"></a><span class="lineno"> 257</span> </div> |
| <div class="line"><a id="l00258" name="l00258"></a><span class="lineno"> 258</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00259" name="l00259"></a><span class="lineno"> 259</span><span class="keyword">template</span><<span class="keyword">typename</span> SerDe></div> |
| <div class="line"><a id="l00260" name="l00260"></a><span class="lineno"> 260</span>std::vector<uint8_t, AllocU8<A>> <a class="code hl_class" href="classdatasketches_1_1var__opt__union.html">var_opt_union<T, A>::serialize</a>(<span class="keywordtype">unsigned</span> header_size_bytes, <span class="keyword">const</span> SerDe& sd)<span class="keyword"> const </span>{</div> |
| <div class="line"><a id="l00261" name="l00261"></a><span class="lineno"> 261</span> <span class="keyword">const</span> <span class="keywordtype">size_t</span> size = header_size_bytes + get_serialized_size_bytes(sd);</div> |
| <div class="line"><a id="l00262" name="l00262"></a><span class="lineno"> 262</span> std::vector<uint8_t, AllocU8<A>> bytes(size, 0, gadget_.allocator_);</div> |
| <div class="line"><a id="l00263" name="l00263"></a><span class="lineno"> 263</span> uint8_t* ptr = bytes.data() + header_size_bytes;</div> |
| <div class="line"><a id="l00264" name="l00264"></a><span class="lineno"> 264</span> </div> |
| <div class="line"><a id="l00265" name="l00265"></a><span class="lineno"> 265</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> empty = n_ == 0;</div> |
| <div class="line"><a id="l00266" name="l00266"></a><span class="lineno"> 266</span> </div> |
| <div class="line"><a id="l00267" name="l00267"></a><span class="lineno"> 267</span> <span class="keyword">const</span> uint8_t serialization_version(SER_VER);</div> |
| <div class="line"><a id="l00268" name="l00268"></a><span class="lineno"> 268</span> <span class="keyword">const</span> uint8_t family_id(FAMILY_ID);</div> |
| <div class="line"><a id="l00269" name="l00269"></a><span class="lineno"> 269</span> </div> |
| <div class="line"><a id="l00270" name="l00270"></a><span class="lineno"> 270</span> uint8_t preamble_longs;</div> |
| <div class="line"><a id="l00271" name="l00271"></a><span class="lineno"> 271</span> uint8_t flags;</div> |
| <div class="line"><a id="l00272" name="l00272"></a><span class="lineno"> 272</span> </div> |
| <div class="line"><a id="l00273" name="l00273"></a><span class="lineno"> 273</span> <span class="keywordflow">if</span> (empty) {</div> |
| <div class="line"><a id="l00274" name="l00274"></a><span class="lineno"> 274</span> preamble_longs = PREAMBLE_LONGS_EMPTY;</div> |
| <div class="line"><a id="l00275" name="l00275"></a><span class="lineno"> 275</span> flags = EMPTY_FLAG_MASK;</div> |
| <div class="line"><a id="l00276" name="l00276"></a><span class="lineno"> 276</span> } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a id="l00277" name="l00277"></a><span class="lineno"> 277</span> preamble_longs = PREAMBLE_LONGS_NON_EMPTY;</div> |
| <div class="line"><a id="l00278" name="l00278"></a><span class="lineno"> 278</span> flags = 0;</div> |
| <div class="line"><a id="l00279" name="l00279"></a><span class="lineno"> 279</span> }</div> |
| <div class="line"><a id="l00280" name="l00280"></a><span class="lineno"> 280</span> </div> |
| <div class="line"><a id="l00281" name="l00281"></a><span class="lineno"> 281</span> <span class="comment">// first prelong</span></div> |
| <div class="line"><a id="l00282" name="l00282"></a><span class="lineno"> 282</span> ptr += copy_to_mem(preamble_longs, ptr);</div> |
| <div class="line"><a id="l00283" name="l00283"></a><span class="lineno"> 283</span> ptr += copy_to_mem(serialization_version, ptr);</div> |
| <div class="line"><a id="l00284" name="l00284"></a><span class="lineno"> 284</span> ptr += copy_to_mem(family_id, ptr);</div> |
| <div class="line"><a id="l00285" name="l00285"></a><span class="lineno"> 285</span> ptr += copy_to_mem(flags, ptr);</div> |
| <div class="line"><a id="l00286" name="l00286"></a><span class="lineno"> 286</span> ptr += copy_to_mem(max_k_, ptr);</div> |
| <div class="line"><a id="l00287" name="l00287"></a><span class="lineno"> 287</span> </div> |
| <div class="line"><a id="l00288" name="l00288"></a><span class="lineno"> 288</span> <span class="keywordflow">if</span> (!empty) {</div> |
| <div class="line"><a id="l00289" name="l00289"></a><span class="lineno"> 289</span> ptr += copy_to_mem(n_, ptr);</div> |
| <div class="line"><a id="l00290" name="l00290"></a><span class="lineno"> 290</span> ptr += copy_to_mem(outer_tau_numer_, ptr);</div> |
| <div class="line"><a id="l00291" name="l00291"></a><span class="lineno"> 291</span> ptr += copy_to_mem(outer_tau_denom_, ptr);</div> |
| <div class="line"><a id="l00292" name="l00292"></a><span class="lineno"> 292</span> </div> |
| <div class="line"><a id="l00293" name="l00293"></a><span class="lineno"> 293</span> <span class="keyword">auto</span> gadget_bytes = gadget_.serialize(0, sd);</div> |
| <div class="line"><a id="l00294" name="l00294"></a><span class="lineno"> 294</span> ptr += copy_to_mem(gadget_bytes.data(), ptr, gadget_bytes.size() * <span class="keyword">sizeof</span>(uint8_t));</div> |
| <div class="line"><a id="l00295" name="l00295"></a><span class="lineno"> 295</span> }</div> |
| <div class="line"><a id="l00296" name="l00296"></a><span class="lineno"> 296</span> </div> |
| <div class="line"><a id="l00297" name="l00297"></a><span class="lineno"> 297</span> <span class="keywordflow">return</span> bytes;</div> |
| <div class="line"><a id="l00298" name="l00298"></a><span class="lineno"> 298</span>}</div> |
| <div class="line"><a id="l00299" name="l00299"></a><span class="lineno"> 299</span> </div> |
| <div class="line"><a id="l00300" name="l00300"></a><span class="lineno"> 300</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="foldopen" id="foldopen00301" data-start="{" data-end="}"> |
| <div class="line"><a id="l00301" name="l00301"></a><span class="lineno"><a class="line" href="classdatasketches_1_1var__opt__union.html#ad20897c5c8bd47f5d4005989bead0e55"> 301</a></span><span class="keywordtype">void</span> <a class="code hl_class" href="classdatasketches_1_1var__opt__union.html">var_opt_union<T, A>::reset</a>() {</div> |
| <div class="line"><a id="l00302" name="l00302"></a><span class="lineno"> 302</span> n_ = 0;</div> |
| <div class="line"><a id="l00303" name="l00303"></a><span class="lineno"> 303</span> outer_tau_numer_ = 0.0;</div> |
| <div class="line"><a id="l00304" name="l00304"></a><span class="lineno"> 304</span> outer_tau_denom_ = 0;</div> |
| <div class="line"><a id="l00305" name="l00305"></a><span class="lineno"> 305</span> gadget_.<a class="code hl_function" href="classdatasketches_1_1var__opt__union.html#ad20897c5c8bd47f5d4005989bead0e55">reset</a>();</div> |
| <div class="line"><a id="l00306" name="l00306"></a><span class="lineno"> 306</span>}</div> |
| </div> |
| <div class="line"><a id="l00307" name="l00307"></a><span class="lineno"> 307</span> </div> |
| <div class="line"><a id="l00308" name="l00308"></a><span class="lineno"> 308</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="foldopen" id="foldopen00309" data-start="{" data-end="}"> |
| <div class="line"><a id="l00309" name="l00309"></a><span class="lineno"><a class="line" href="classdatasketches_1_1var__opt__union.html#aed372241c10ffd041bee85602edb199a"> 309</a></span>string<A> <a class="code hl_class" href="classdatasketches_1_1var__opt__union.html">var_opt_union<T, A>::to_string</a>()<span class="keyword"> const </span>{</div> |
| <div class="line"><a id="l00310" name="l00310"></a><span class="lineno"> 310</span> <span class="comment">// Using a temporary stream for implementation here does not comply with AllocatorAwareContainer requirements.</span></div> |
| <div class="line"><a id="l00311" name="l00311"></a><span class="lineno"> 311</span> <span class="comment">// The stream does not support passing an allocator instance, and alternatives are complicated.</span></div> |
| <div class="line"><a id="l00312" name="l00312"></a><span class="lineno"> 312</span> std::ostringstream os;</div> |
| <div class="line"><a id="l00313" name="l00313"></a><span class="lineno"> 313</span> os << <span class="stringliteral">"### VarOpt Union SUMMARY:"</span> << std::endl;</div> |
| <div class="line"><a id="l00314" name="l00314"></a><span class="lineno"> 314</span> os << <span class="stringliteral">" n : "</span> << n_ << std::endl;</div> |
| <div class="line"><a id="l00315" name="l00315"></a><span class="lineno"> 315</span> os << <span class="stringliteral">" Max k : "</span> << max_k_ << std::endl;</div> |
| <div class="line"><a id="l00316" name="l00316"></a><span class="lineno"> 316</span> os << <span class="stringliteral">" Gadget Summary:"</span> << std::endl;</div> |
| <div class="line"><a id="l00317" name="l00317"></a><span class="lineno"> 317</span> os << gadget_.<a class="code hl_function" href="classdatasketches_1_1var__opt__union.html#aed372241c10ffd041bee85602edb199a">to_string</a>();</div> |
| <div class="line"><a id="l00318" name="l00318"></a><span class="lineno"> 318</span> os << <span class="stringliteral">"### END VarOpt Union SUMMARY"</span> << std::endl;</div> |
| <div class="line"><a id="l00319" name="l00319"></a><span class="lineno"> 319</span> <span class="keywordflow">return</span> string<A>(os.str().c_str(), gadget_.allocator_);</div> |
| <div class="line"><a id="l00320" name="l00320"></a><span class="lineno"> 320</span>}</div> |
| </div> |
| <div class="line"><a id="l00321" name="l00321"></a><span class="lineno"> 321</span> </div> |
| <div class="line"><a id="l00322" name="l00322"></a><span class="lineno"> 322</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="foldopen" id="foldopen00323" data-start="{" data-end="}"> |
| <div class="line"><a id="l00323" name="l00323"></a><span class="lineno"><a class="line" href="classdatasketches_1_1var__opt__union.html#a34ccfdbae9cae36faf1093e12da38d0c"> 323</a></span><span class="keywordtype">void</span> <a class="code hl_class" href="classdatasketches_1_1var__opt__union.html">var_opt_union<T, A>::update</a>(<span class="keyword">const</span> <a class="code hl_class" href="classdatasketches_1_1var__opt__sketch.html">var_opt_sketch<T, A></a>& sk) {</div> |
| <div class="line"><a id="l00324" name="l00324"></a><span class="lineno"> 324</span> merge_items(sk);</div> |
| <div class="line"><a id="l00325" name="l00325"></a><span class="lineno"> 325</span> resolve_tau(sk);</div> |
| <div class="line"><a id="l00326" name="l00326"></a><span class="lineno"> 326</span>}</div> |
| </div> |
| <div class="line"><a id="l00327" name="l00327"></a><span class="lineno"> 327</span> </div> |
| <div class="line"><a id="l00328" name="l00328"></a><span class="lineno"> 328</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="foldopen" id="foldopen00329" data-start="{" data-end="}"> |
| <div class="line"><a id="l00329" name="l00329"></a><span class="lineno"><a class="line" href="classdatasketches_1_1var__opt__union.html#a0271e8119772f1bbefe7e4e6f82431a3"> 329</a></span><span class="keywordtype">void</span> <a class="code hl_class" href="classdatasketches_1_1var__opt__union.html">var_opt_union<T, A>::update</a>(<a class="code hl_class" href="classdatasketches_1_1var__opt__sketch.html">var_opt_sketch<T, A></a>&& sk) {</div> |
| <div class="line"><a id="l00330" name="l00330"></a><span class="lineno"> 330</span> merge_items(std::move(sk));</div> |
| <div class="line"><a id="l00331" name="l00331"></a><span class="lineno"> 331</span> resolve_tau(sk); <span class="comment">// don't need items, so ok even if they've been moved out</span></div> |
| <div class="line"><a id="l00332" name="l00332"></a><span class="lineno"> 332</span>}</div> |
| </div> |
| <div class="line"><a id="l00333" name="l00333"></a><span class="lineno"> 333</span> </div> |
| <div class="line"><a id="l00334" name="l00334"></a><span class="lineno"> 334</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00335" name="l00335"></a><span class="lineno"> 335</span><span class="keywordtype">double</span> <a class="code hl_class" href="classdatasketches_1_1var__opt__union.html">var_opt_union<T, A>::get_outer_tau</a>()<span class="keyword"> const </span>{</div> |
| <div class="line"><a id="l00336" name="l00336"></a><span class="lineno"> 336</span> <span class="keywordflow">if</span> (outer_tau_denom_ == 0) {</div> |
| <div class="line"><a id="l00337" name="l00337"></a><span class="lineno"> 337</span> <span class="keywordflow">return</span> 0.0;</div> |
| <div class="line"><a id="l00338" name="l00338"></a><span class="lineno"> 338</span> } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a id="l00339" name="l00339"></a><span class="lineno"> 339</span> <span class="keywordflow">return</span> outer_tau_numer_ / outer_tau_denom_;</div> |
| <div class="line"><a id="l00340" name="l00340"></a><span class="lineno"> 340</span> }</div> |
| <div class="line"><a id="l00341" name="l00341"></a><span class="lineno"> 341</span>}</div> |
| <div class="line"><a id="l00342" name="l00342"></a><span class="lineno"> 342</span> </div> |
| <div class="line"><a id="l00343" name="l00343"></a><span class="lineno"> 343</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00344" name="l00344"></a><span class="lineno"> 344</span><span class="keywordtype">void</span> var_opt_union<T, A>::merge_items(<span class="keyword">const</span> var_opt_sketch<T, A>& sketch) {</div> |
| <div class="line"><a id="l00345" name="l00345"></a><span class="lineno"> 345</span> <span class="keywordflow">if</span> (sketch.n_ == 0) {</div> |
| <div class="line"><a id="l00346" name="l00346"></a><span class="lineno"> 346</span> <span class="keywordflow">return</span>;</div> |
| <div class="line"><a id="l00347" name="l00347"></a><span class="lineno"> 347</span> }</div> |
| <div class="line"><a id="l00348" name="l00348"></a><span class="lineno"> 348</span> </div> |
| <div class="line"><a id="l00349" name="l00349"></a><span class="lineno"> 349</span> n_ += sketch.n_;</div> |
| <div class="line"><a id="l00350" name="l00350"></a><span class="lineno"> 350</span> </div> |
| <div class="line"><a id="l00351" name="l00351"></a><span class="lineno"> 351</span> <span class="comment">// H region const_iterator</span></div> |
| <div class="line"><a id="l00352" name="l00352"></a><span class="lineno"> 352</span> <span class="keyword">typename</span> var_opt_sketch<T, A>::const_iterator h_itr(sketch, <span class="keyword">false</span>, <span class="keyword">false</span>);</div> |
| <div class="line"><a id="l00353" name="l00353"></a><span class="lineno"> 353</span> <span class="keyword">typename</span> var_opt_sketch<T, A>::const_iterator h_end(sketch, <span class="keyword">true</span>, <span class="keyword">false</span>);</div> |
| <div class="line"><a id="l00354" name="l00354"></a><span class="lineno"> 354</span> <span class="keywordflow">while</span> (h_itr != h_end) {</div> |
| <div class="line"><a id="l00355" name="l00355"></a><span class="lineno"> 355</span> std::pair<const T&, const double> sample = *h_itr;</div> |
| <div class="line"><a id="l00356" name="l00356"></a><span class="lineno"> 356</span> gadget_.update(sample.first, sample.second, <span class="keyword">false</span>);</div> |
| <div class="line"><a id="l00357" name="l00357"></a><span class="lineno"> 357</span> ++h_itr;</div> |
| <div class="line"><a id="l00358" name="l00358"></a><span class="lineno"> 358</span> }</div> |
| <div class="line"><a id="l00359" name="l00359"></a><span class="lineno"> 359</span> </div> |
| <div class="line"><a id="l00360" name="l00360"></a><span class="lineno"> 360</span> <span class="comment">// Weight-correcting R region iterator (const_iterator doesn't do the correction)</span></div> |
| <div class="line"><a id="l00361" name="l00361"></a><span class="lineno"> 361</span> <span class="keyword">typename</span> var_opt_sketch<T, A>::iterator r_itr(sketch, <span class="keyword">false</span>, <span class="keyword">true</span>);</div> |
| <div class="line"><a id="l00362" name="l00362"></a><span class="lineno"> 362</span> <span class="keyword">typename</span> var_opt_sketch<T, A>::iterator r_end(sketch, <span class="keyword">true</span>, <span class="keyword">true</span>);</div> |
| <div class="line"><a id="l00363" name="l00363"></a><span class="lineno"> 363</span> <span class="keywordflow">while</span> (r_itr != r_end) {</div> |
| <div class="line"><a id="l00364" name="l00364"></a><span class="lineno"> 364</span> std::pair<const T&, const double> sample = *r_itr;</div> |
| <div class="line"><a id="l00365" name="l00365"></a><span class="lineno"> 365</span> gadget_.update(sample.first, sample.second, <span class="keyword">true</span>);</div> |
| <div class="line"><a id="l00366" name="l00366"></a><span class="lineno"> 366</span> ++r_itr;</div> |
| <div class="line"><a id="l00367" name="l00367"></a><span class="lineno"> 367</span> }</div> |
| <div class="line"><a id="l00368" name="l00368"></a><span class="lineno"> 368</span>}</div> |
| <div class="line"><a id="l00369" name="l00369"></a><span class="lineno"> 369</span> </div> |
| <div class="line"><a id="l00370" name="l00370"></a><span class="lineno"> 370</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00371" name="l00371"></a><span class="lineno"> 371</span><span class="keywordtype">void</span> var_opt_union<T, A>::merge_items(var_opt_sketch<T, A>&& sketch) {</div> |
| <div class="line"><a id="l00372" name="l00372"></a><span class="lineno"> 372</span> <span class="keywordflow">if</span> (sketch.n_ == 0) {</div> |
| <div class="line"><a id="l00373" name="l00373"></a><span class="lineno"> 373</span> <span class="keywordflow">return</span>;</div> |
| <div class="line"><a id="l00374" name="l00374"></a><span class="lineno"> 374</span> }</div> |
| <div class="line"><a id="l00375" name="l00375"></a><span class="lineno"> 375</span> </div> |
| <div class="line"><a id="l00376" name="l00376"></a><span class="lineno"> 376</span> n_ += sketch.n_;</div> |
| <div class="line"><a id="l00377" name="l00377"></a><span class="lineno"> 377</span> </div> |
| <div class="line"><a id="l00378" name="l00378"></a><span class="lineno"> 378</span> <span class="comment">// H region iterator</span></div> |
| <div class="line"><a id="l00379" name="l00379"></a><span class="lineno"> 379</span> <span class="keyword">typename</span> var_opt_sketch<T, A>::iterator h_itr(sketch, <span class="keyword">false</span>, <span class="keyword">false</span>);</div> |
| <div class="line"><a id="l00380" name="l00380"></a><span class="lineno"> 380</span> <span class="keyword">typename</span> var_opt_sketch<T, A>::iterator h_end(sketch, <span class="keyword">true</span>, <span class="keyword">false</span>);</div> |
| <div class="line"><a id="l00381" name="l00381"></a><span class="lineno"> 381</span> <span class="keywordflow">while</span> (h_itr != h_end) {</div> |
| <div class="line"><a id="l00382" name="l00382"></a><span class="lineno"> 382</span> std::pair<T&, double> sample = *h_itr;</div> |
| <div class="line"><a id="l00383" name="l00383"></a><span class="lineno"> 383</span> gadget_.update(std::move(sample.first), sample.second, <span class="keyword">false</span>);</div> |
| <div class="line"><a id="l00384" name="l00384"></a><span class="lineno"> 384</span> ++h_itr;</div> |
| <div class="line"><a id="l00385" name="l00385"></a><span class="lineno"> 385</span> }</div> |
| <div class="line"><a id="l00386" name="l00386"></a><span class="lineno"> 386</span> </div> |
| <div class="line"><a id="l00387" name="l00387"></a><span class="lineno"> 387</span> <span class="comment">// Weight-correcting R region iterator</span></div> |
| <div class="line"><a id="l00388" name="l00388"></a><span class="lineno"> 388</span> <span class="keyword">typename</span> var_opt_sketch<T, A>::iterator r_itr(sketch, <span class="keyword">false</span>, <span class="keyword">true</span>);</div> |
| <div class="line"><a id="l00389" name="l00389"></a><span class="lineno"> 389</span> <span class="keyword">typename</span> var_opt_sketch<T, A>::iterator r_end(sketch, <span class="keyword">true</span>, <span class="keyword">true</span>);</div> |
| <div class="line"><a id="l00390" name="l00390"></a><span class="lineno"> 390</span> <span class="keywordflow">while</span> (r_itr != r_end) {</div> |
| <div class="line"><a id="l00391" name="l00391"></a><span class="lineno"> 391</span> std::pair<T&, double> sample = *r_itr;</div> |
| <div class="line"><a id="l00392" name="l00392"></a><span class="lineno"> 392</span> gadget_.update(std::move(sample.first), sample.second, <span class="keyword">true</span>);</div> |
| <div class="line"><a id="l00393" name="l00393"></a><span class="lineno"> 393</span> ++r_itr;</div> |
| <div class="line"><a id="l00394" name="l00394"></a><span class="lineno"> 394</span> }</div> |
| <div class="line"><a id="l00395" name="l00395"></a><span class="lineno"> 395</span>}</div> |
| <div class="line"><a id="l00396" name="l00396"></a><span class="lineno"> 396</span> </div> |
| <div class="line"><a id="l00397" name="l00397"></a><span class="lineno"> 397</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00398" name="l00398"></a><span class="lineno"> 398</span><span class="keywordtype">void</span> var_opt_union<T, A>::resolve_tau(<span class="keyword">const</span> var_opt_sketch<T, A>& sketch) {</div> |
| <div class="line"><a id="l00399" name="l00399"></a><span class="lineno"> 399</span> <span class="keywordflow">if</span> (sketch.r_ > 0) {</div> |
| <div class="line"><a id="l00400" name="l00400"></a><span class="lineno"> 400</span> <span class="keyword">const</span> <span class="keywordtype">double</span> sketch_tau = sketch.get_tau();</div> |
| <div class="line"><a id="l00401" name="l00401"></a><span class="lineno"> 401</span> <span class="keyword">const</span> <span class="keywordtype">double</span> outer_tau = get_outer_tau();</div> |
| <div class="line"><a id="l00402" name="l00402"></a><span class="lineno"> 402</span> </div> |
| <div class="line"><a id="l00403" name="l00403"></a><span class="lineno"> 403</span> <span class="keywordflow">if</span> (outer_tau_denom_ == 0) {</div> |
| <div class="line"><a id="l00404" name="l00404"></a><span class="lineno"> 404</span> <span class="comment">// detect first estimation mode sketch and grab its tau</span></div> |
| <div class="line"><a id="l00405" name="l00405"></a><span class="lineno"> 405</span> outer_tau_numer_ = sketch.total_wt_r_;</div> |
| <div class="line"><a id="l00406" name="l00406"></a><span class="lineno"> 406</span> outer_tau_denom_ = sketch.r_;</div> |
| <div class="line"><a id="l00407" name="l00407"></a><span class="lineno"> 407</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (sketch_tau > outer_tau) {</div> |
| <div class="line"><a id="l00408" name="l00408"></a><span class="lineno"> 408</span> <span class="comment">// switch to a bigger value of outer_tau</span></div> |
| <div class="line"><a id="l00409" name="l00409"></a><span class="lineno"> 409</span> outer_tau_numer_ = sketch.total_wt_r_;</div> |
| <div class="line"><a id="l00410" name="l00410"></a><span class="lineno"> 410</span> outer_tau_denom_ = sketch.r_;</div> |
| <div class="line"><a id="l00411" name="l00411"></a><span class="lineno"> 411</span> } <span class="keywordflow">else</span> <span class="keywordflow">if</span> (sketch_tau == outer_tau) {</div> |
| <div class="line"><a id="l00412" name="l00412"></a><span class="lineno"> 412</span> <span class="comment">// Ok if previous equality test isn't quite perfect. Mistakes in either direction should</span></div> |
| <div class="line"><a id="l00413" name="l00413"></a><span class="lineno"> 413</span> <span class="comment">// be fairly benign.</span></div> |
| <div class="line"><a id="l00414" name="l00414"></a><span class="lineno"> 414</span> <span class="comment">// Without conceptually changing outer_tau, update number and denominator. In particular,</span></div> |
| <div class="line"><a id="l00415" name="l00415"></a><span class="lineno"> 415</span> <span class="comment">// add the total weight of the incoming reservoir to the running total.</span></div> |
| <div class="line"><a id="l00416" name="l00416"></a><span class="lineno"> 416</span> outer_tau_numer_ += sketch.total_wt_r_;</div> |
| <div class="line"><a id="l00417" name="l00417"></a><span class="lineno"> 417</span> outer_tau_denom_ += sketch.r_;</div> |
| <div class="line"><a id="l00418" name="l00418"></a><span class="lineno"> 418</span> }</div> |
| <div class="line"><a id="l00419" name="l00419"></a><span class="lineno"> 419</span> </div> |
| <div class="line"><a id="l00420" name="l00420"></a><span class="lineno"> 420</span> <span class="comment">// do nothing if sketch's tau is smaller than outer_tau</span></div> |
| <div class="line"><a id="l00421" name="l00421"></a><span class="lineno"> 421</span> }</div> |
| <div class="line"><a id="l00422" name="l00422"></a><span class="lineno"> 422</span>}</div> |
| <div class="line"><a id="l00423" name="l00423"></a><span class="lineno"> 423</span> </div> |
| <div class="line"><a id="l00424" name="l00424"></a><span class="lineno"> 424</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="foldopen" id="foldopen00425" data-start="{" data-end="}"> |
| <div class="line"><a id="l00425" name="l00425"></a><span class="lineno"><a class="line" href="classdatasketches_1_1var__opt__union.html#a28e630639a11dc71d7f72c4e0518b2fe"> 425</a></span><a class="code hl_class" href="classdatasketches_1_1var__opt__sketch.html">var_opt_sketch<T, A></a> <a class="code hl_class" href="classdatasketches_1_1var__opt__union.html">var_opt_union<T, A>::get_result</a>()<span class="keyword"> const </span>{</div> |
| <div class="line"><a id="l00426" name="l00426"></a><span class="lineno"> 426</span> <span class="comment">// If no marked items in H, gadget is already valid mathematically. We can return what is</span></div> |
| <div class="line"><a id="l00427" name="l00427"></a><span class="lineno"> 427</span> <span class="comment">// basically just a copy of the gadget.</span></div> |
| <div class="line"><a id="l00428" name="l00428"></a><span class="lineno"> 428</span> <span class="keywordflow">if</span> (gadget_.num_marks_in_h_ == 0) {</div> |
| <div class="line"><a id="l00429" name="l00429"></a><span class="lineno"> 429</span> <span class="keywordflow">return</span> simple_gadget_coercer();</div> |
| <div class="line"><a id="l00430" name="l00430"></a><span class="lineno"> 430</span> } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a id="l00431" name="l00431"></a><span class="lineno"> 431</span> <span class="comment">// Copy of gadget. This may produce needless copying in the</span></div> |
| <div class="line"><a id="l00432" name="l00432"></a><span class="lineno"> 432</span> <span class="comment">// pseudo-exact case below, but should simplify the code without</span></div> |
| <div class="line"><a id="l00433" name="l00433"></a><span class="lineno"> 433</span> <span class="comment">// needing to make the gadget a pointer</span></div> |
| <div class="line"><a id="l00434" name="l00434"></a><span class="lineno"> 434</span> <a class="code hl_class" href="classdatasketches_1_1var__opt__sketch.html">var_opt_sketch<T, A></a> gcopy(gadget_, <span class="keyword">false</span>, n_);</div> |
| <div class="line"><a id="l00435" name="l00435"></a><span class="lineno"> 435</span> </div> |
| <div class="line"><a id="l00436" name="l00436"></a><span class="lineno"> 436</span> <span class="comment">// At this point, we know that marked items are present in H. So:</span></div> |
| <div class="line"><a id="l00437" name="l00437"></a><span class="lineno"> 437</span> <span class="comment">// 1. Result will necessarily be in estimation mode</span></div> |
| <div class="line"><a id="l00438" name="l00438"></a><span class="lineno"> 438</span> <span class="comment">// 2. Marked items currently in H need to be absorbed into reservoir (R)</span></div> |
| <div class="line"><a id="l00439" name="l00439"></a><span class="lineno"> 439</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> is_pseudo_exact = detect_and_handle_subcase_of_pseudo_exact(gcopy);</div> |
| <div class="line"><a id="l00440" name="l00440"></a><span class="lineno"> 440</span> <span class="keywordflow">if</span> (!is_pseudo_exact) {</div> |
| <div class="line"><a id="l00441" name="l00441"></a><span class="lineno"> 441</span> <span class="comment">// continue with main logic</span></div> |
| <div class="line"><a id="l00442" name="l00442"></a><span class="lineno"> 442</span> migrate_marked_items_by_decreasing_k(gcopy);</div> |
| <div class="line"><a id="l00443" name="l00443"></a><span class="lineno"> 443</span> }</div> |
| <div class="line"><a id="l00444" name="l00444"></a><span class="lineno"> 444</span> <span class="comment">// sub-case was already detected and handled, so return the result</span></div> |
| <div class="line"><a id="l00445" name="l00445"></a><span class="lineno"> 445</span> <span class="keywordflow">return</span> gcopy;</div> |
| <div class="line"><a id="l00446" name="l00446"></a><span class="lineno"> 446</span> }</div> |
| <div class="line"><a id="l00447" name="l00447"></a><span class="lineno"> 447</span>}</div> |
| </div> |
| <div class="line"><a id="l00448" name="l00448"></a><span class="lineno"> 448</span> </div> |
| <div class="line"><a id="l00455" name="l00455"></a><span class="lineno"> 455</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00456" name="l00456"></a><span class="lineno"> 456</span><a class="code hl_class" href="classdatasketches_1_1var__opt__sketch.html">var_opt_sketch<T, A></a> <a class="code hl_class" href="classdatasketches_1_1var__opt__union.html">var_opt_union<T, A>::simple_gadget_coercer</a>()<span class="keyword"> const </span>{</div> |
| <div class="line"><a id="l00457" name="l00457"></a><span class="lineno"> 457</span> <span class="keywordflow">if</span> (gadget_.num_marks_in_h_ != 0) <span class="keywordflow">throw</span> std::logic_error(<span class="stringliteral">"simple gadget coercer only applies if no marks"</span>);</div> |
| <div class="line"><a id="l00458" name="l00458"></a><span class="lineno"> 458</span> <span class="keywordflow">return</span> <a class="code hl_class" href="classdatasketches_1_1var__opt__sketch.html">var_opt_sketch<T, A></a>(gadget_, <span class="keyword">true</span>, n_);</div> |
| <div class="line"><a id="l00459" name="l00459"></a><span class="lineno"> 459</span>}</div> |
| <div class="line"><a id="l00460" name="l00460"></a><span class="lineno"> 460</span> </div> |
| <div class="line"><a id="l00461" name="l00461"></a><span class="lineno"> 461</span><span class="comment">// this is a condition checked in detect_and_handle_subcase_of_pseudo_exact()</span></div> |
| <div class="line"><a id="l00462" name="l00462"></a><span class="lineno"> 462</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00463" name="l00463"></a><span class="lineno"> 463</span><span class="keywordtype">bool</span> var_opt_union<T, A>::there_exist_unmarked_h_items_lighter_than_target(<span class="keywordtype">double</span> threshold)<span class="keyword"> const </span>{</div> |
| <div class="line"><a id="l00464" name="l00464"></a><span class="lineno"> 464</span> <span class="keywordflow">for</span> (uint32_t i = 0; i < gadget_.h_; ++i) {</div> |
| <div class="line"><a id="l00465" name="l00465"></a><span class="lineno"> 465</span> <span class="keywordflow">if</span> ((gadget_.weights_[i] < threshold) && !gadget_.marks_[i]) {</div> |
| <div class="line"><a id="l00466" name="l00466"></a><span class="lineno"> 466</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a id="l00467" name="l00467"></a><span class="lineno"> 467</span> }</div> |
| <div class="line"><a id="l00468" name="l00468"></a><span class="lineno"> 468</span> }</div> |
| <div class="line"><a id="l00469" name="l00469"></a><span class="lineno"> 469</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a id="l00470" name="l00470"></a><span class="lineno"> 470</span>}</div> |
| <div class="line"><a id="l00471" name="l00471"></a><span class="lineno"> 471</span> </div> |
| <div class="line"><a id="l00472" name="l00472"></a><span class="lineno"> 472</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00473" name="l00473"></a><span class="lineno"> 473</span><span class="keywordtype">bool</span> var_opt_union<T, A>::detect_and_handle_subcase_of_pseudo_exact(var_opt_sketch<T, A>& sk)<span class="keyword"> const </span>{</div> |
| <div class="line"><a id="l00474" name="l00474"></a><span class="lineno"> 474</span> <span class="comment">// gadget is seemingly exact</span></div> |
| <div class="line"><a id="l00475" name="l00475"></a><span class="lineno"> 475</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> condition1 = gadget_.r_ == 0;</div> |
| <div class="line"><a id="l00476" name="l00476"></a><span class="lineno"> 476</span> </div> |
| <div class="line"><a id="l00477" name="l00477"></a><span class="lineno"> 477</span> <span class="comment">// but there are marked items in H, so only _pseudo_ exact</span></div> |
| <div class="line"><a id="l00478" name="l00478"></a><span class="lineno"> 478</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> condition2 = gadget_.num_marks_in_h_ > 0;</div> |
| <div class="line"><a id="l00479" name="l00479"></a><span class="lineno"> 479</span> </div> |
| <div class="line"><a id="l00480" name="l00480"></a><span class="lineno"> 480</span> <span class="comment">// if gadget is pseudo-exact and the number of marks equals outer_tau_denom, then we can deduce</span></div> |
| <div class="line"><a id="l00481" name="l00481"></a><span class="lineno"> 481</span> <span class="comment">// from the bookkeeping logic of resolve_tau() that all estimation mode input sketches must</span></div> |
| <div class="line"><a id="l00482" name="l00482"></a><span class="lineno"> 482</span> <span class="comment">// have had the same tau, so we can throw all of the marked items into a common reservoir.</span></div> |
| <div class="line"><a id="l00483" name="l00483"></a><span class="lineno"> 483</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> condition3 = gadget_.num_marks_in_h_ == outer_tau_denom_;</div> |
| <div class="line"><a id="l00484" name="l00484"></a><span class="lineno"> 484</span> </div> |
| <div class="line"><a id="l00485" name="l00485"></a><span class="lineno"> 485</span> <span class="keywordflow">if</span> (!(condition1 && condition2 && condition3)) {</div> |
| <div class="line"><a id="l00486" name="l00486"></a><span class="lineno"> 486</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a id="l00487" name="l00487"></a><span class="lineno"> 487</span> } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a id="l00488" name="l00488"></a><span class="lineno"> 488</span> </div> |
| <div class="line"><a id="l00489" name="l00489"></a><span class="lineno"> 489</span> <span class="comment">// explicitly enforce rule that items in H should not be lighter than the sketch's tau</span></div> |
| <div class="line"><a id="l00490" name="l00490"></a><span class="lineno"> 490</span> <span class="keyword">const</span> <span class="keywordtype">bool</span> anti_condition4 = there_exist_unmarked_h_items_lighter_than_target(gadget_.get_tau());</div> |
| <div class="line"><a id="l00491" name="l00491"></a><span class="lineno"> 491</span> <span class="keywordflow">if</span> (anti_condition4) {</div> |
| <div class="line"><a id="l00492" name="l00492"></a><span class="lineno"> 492</span> <span class="keywordflow">return</span> <span class="keyword">false</span>;</div> |
| <div class="line"><a id="l00493" name="l00493"></a><span class="lineno"> 493</span> } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a id="l00494" name="l00494"></a><span class="lineno"> 494</span> <span class="comment">// conditions 1 through 4 hold</span></div> |
| <div class="line"><a id="l00495" name="l00495"></a><span class="lineno"> 495</span> mark_moving_gadget_coercer(sk);</div> |
| <div class="line"><a id="l00496" name="l00496"></a><span class="lineno"> 496</span> <span class="keywordflow">return</span> <span class="keyword">true</span>;</div> |
| <div class="line"><a id="l00497" name="l00497"></a><span class="lineno"> 497</span> }</div> |
| <div class="line"><a id="l00498" name="l00498"></a><span class="lineno"> 498</span> }</div> |
| <div class="line"><a id="l00499" name="l00499"></a><span class="lineno"> 499</span>}</div> |
| <div class="line"><a id="l00500" name="l00500"></a><span class="lineno"> 500</span> </div> |
| <div class="line"><a id="l00509" name="l00509"></a><span class="lineno"> 509</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00510" name="l00510"></a><span class="lineno"> 510</span><span class="keywordtype">void</span> var_opt_union<T, A>::mark_moving_gadget_coercer(var_opt_sketch<T, A>& sk)<span class="keyword"> const </span>{</div> |
| <div class="line"><a id="l00511" name="l00511"></a><span class="lineno"> 511</span> <span class="keyword">const</span> uint32_t result_k = gadget_.h_ + gadget_.r_;</div> |
| <div class="line"><a id="l00512" name="l00512"></a><span class="lineno"> 512</span> </div> |
| <div class="line"><a id="l00513" name="l00513"></a><span class="lineno"> 513</span> uint32_t result_h = 0;</div> |
| <div class="line"><a id="l00514" name="l00514"></a><span class="lineno"> 514</span> uint32_t result_r = 0;</div> |
| <div class="line"><a id="l00515" name="l00515"></a><span class="lineno"> 515</span> <span class="keywordtype">size_t</span> next_r_pos = result_k; <span class="comment">// = (result_k+1)-1, to fill R region from back to front</span></div> |
| <div class="line"><a id="l00516" name="l00516"></a><span class="lineno"> 516</span> </div> |
| <div class="line"><a id="l00517" name="l00517"></a><span class="lineno"> 517</span> <span class="keywordtype">double</span>* wts = AllocDouble(allocator_).allocate(result_k + 1);</div> |
| <div class="line"><a id="l00518" name="l00518"></a><span class="lineno"> 518</span> T* data = A(allocator_).allocate(result_k + 1);</div> |
| <div class="line"><a id="l00519" name="l00519"></a><span class="lineno"> 519</span> </div> |
| <div class="line"><a id="l00520" name="l00520"></a><span class="lineno"> 520</span> <span class="comment">// insert R region items, ignoring weights</span></div> |
| <div class="line"><a id="l00521" name="l00521"></a><span class="lineno"> 521</span> <span class="comment">// Currently (May 2017) this next block is unreachable; this coercer is used only in the</span></div> |
| <div class="line"><a id="l00522" name="l00522"></a><span class="lineno"> 522</span> <span class="comment">// pseudo-exact case in which case there are no items natively in R, only marked items in H</span></div> |
| <div class="line"><a id="l00523" name="l00523"></a><span class="lineno"> 523</span> <span class="comment">// that will be moved into R as part of the coercion process.</span></div> |
| <div class="line"><a id="l00524" name="l00524"></a><span class="lineno"> 524</span> <span class="comment">// Addedndum (Jan 2020): Cleanup at end of method assumes R count is 0</span></div> |
| <div class="line"><a id="l00525" name="l00525"></a><span class="lineno"> 525</span> <span class="keyword">const</span> <span class="keywordtype">size_t</span> final_idx = gadget_.get_num_samples();</div> |
| <div class="line"><a id="l00526" name="l00526"></a><span class="lineno"> 526</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> idx = gadget_.h_ + 1; idx <= final_idx; ++idx) {</div> |
| <div class="line"><a id="l00527" name="l00527"></a><span class="lineno"> 527</span> <span class="keyword">new</span> (&data[next_r_pos]) T(gadget_.data_[idx]);</div> |
| <div class="line"><a id="l00528" name="l00528"></a><span class="lineno"> 528</span> wts[next_r_pos] = gadget_.weights_[idx];</div> |
| <div class="line"><a id="l00529" name="l00529"></a><span class="lineno"> 529</span> ++result_r;</div> |
| <div class="line"><a id="l00530" name="l00530"></a><span class="lineno"> 530</span> --next_r_pos;</div> |
| <div class="line"><a id="l00531" name="l00531"></a><span class="lineno"> 531</span> }</div> |
| <div class="line"><a id="l00532" name="l00532"></a><span class="lineno"> 532</span> </div> |
| <div class="line"><a id="l00533" name="l00533"></a><span class="lineno"> 533</span> <span class="keywordtype">double</span> transferred_weight = 0;</div> |
| <div class="line"><a id="l00534" name="l00534"></a><span class="lineno"> 534</span> </div> |
| <div class="line"><a id="l00535" name="l00535"></a><span class="lineno"> 535</span> <span class="comment">// insert H region items</span></div> |
| <div class="line"><a id="l00536" name="l00536"></a><span class="lineno"> 536</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> idx = 0; idx < gadget_.h_; ++idx) {</div> |
| <div class="line"><a id="l00537" name="l00537"></a><span class="lineno"> 537</span> <span class="keywordflow">if</span> (gadget_.marks_[idx]) {</div> |
| <div class="line"><a id="l00538" name="l00538"></a><span class="lineno"> 538</span> <span class="keyword">new</span> (&data[next_r_pos]) T(gadget_.data_[idx]);</div> |
| <div class="line"><a id="l00539" name="l00539"></a><span class="lineno"> 539</span> wts[next_r_pos] = -1.0;</div> |
| <div class="line"><a id="l00540" name="l00540"></a><span class="lineno"> 540</span> transferred_weight += gadget_.weights_[idx];</div> |
| <div class="line"><a id="l00541" name="l00541"></a><span class="lineno"> 541</span> ++result_r;</div> |
| <div class="line"><a id="l00542" name="l00542"></a><span class="lineno"> 542</span> --next_r_pos;</div> |
| <div class="line"><a id="l00543" name="l00543"></a><span class="lineno"> 543</span> } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a id="l00544" name="l00544"></a><span class="lineno"> 544</span> <span class="keyword">new</span> (&data[result_h]) T(gadget_.data_[idx]);</div> |
| <div class="line"><a id="l00545" name="l00545"></a><span class="lineno"> 545</span> wts[result_h] = gadget_.weights_[idx];</div> |
| <div class="line"><a id="l00546" name="l00546"></a><span class="lineno"> 546</span> ++result_h;</div> |
| <div class="line"><a id="l00547" name="l00547"></a><span class="lineno"> 547</span> }</div> |
| <div class="line"><a id="l00548" name="l00548"></a><span class="lineno"> 548</span> }</div> |
| <div class="line"><a id="l00549" name="l00549"></a><span class="lineno"> 549</span> </div> |
| <div class="line"><a id="l00550" name="l00550"></a><span class="lineno"> 550</span> <span class="keywordflow">if</span> (result_h + result_r != result_k) <span class="keywordflow">throw</span> std::logic_error(<span class="stringliteral">"H + R counts must equal k"</span>);</div> |
| <div class="line"><a id="l00551" name="l00551"></a><span class="lineno"> 551</span> <span class="keywordflow">if</span> (std::abs(transferred_weight - outer_tau_numer_) > 1e-10) {</div> |
| <div class="line"><a id="l00552" name="l00552"></a><span class="lineno"> 552</span> <span class="keywordflow">throw</span> std::logic_error(<span class="stringliteral">"unexpected mismatch in transferred weight"</span>);</div> |
| <div class="line"><a id="l00553" name="l00553"></a><span class="lineno"> 553</span> }</div> |
| <div class="line"><a id="l00554" name="l00554"></a><span class="lineno"> 554</span> </div> |
| <div class="line"><a id="l00555" name="l00555"></a><span class="lineno"> 555</span> <span class="keyword">const</span> <span class="keywordtype">double</span> result_r_weight = gadget_.total_wt_r_ + transferred_weight;</div> |
| <div class="line"><a id="l00556" name="l00556"></a><span class="lineno"> 556</span> <span class="keyword">const</span> uint64_t result_n = n_;</div> |
| <div class="line"><a id="l00557" name="l00557"></a><span class="lineno"> 557</span> </div> |
| <div class="line"><a id="l00558" name="l00558"></a><span class="lineno"> 558</span> <span class="comment">// explicitly set weight value for the gap</span></div> |
| <div class="line"><a id="l00559" name="l00559"></a><span class="lineno"> 559</span> wts[result_h] = -1.0;</div> |
| <div class="line"><a id="l00560" name="l00560"></a><span class="lineno"> 560</span> </div> |
| <div class="line"><a id="l00561" name="l00561"></a><span class="lineno"> 561</span> <span class="comment">// clean up arrays in input sketch, replace with new values</span></div> |
| <div class="line"><a id="l00562" name="l00562"></a><span class="lineno"> 562</span> AllocBool(allocator_).deallocate(sk.marks_, sk.curr_items_alloc_);</div> |
| <div class="line"><a id="l00563" name="l00563"></a><span class="lineno"> 563</span> AllocDouble(allocator_).deallocate(sk.weights_, sk.curr_items_alloc_);</div> |
| <div class="line"><a id="l00564" name="l00564"></a><span class="lineno"> 564</span> <span class="keywordflow">for</span> (<span class="keywordtype">size_t</span> i = 0; i < result_k; ++i) { sk.data_[i].~T(); } <span class="comment">// assumes everything in H region, no gap</span></div> |
| <div class="line"><a id="l00565" name="l00565"></a><span class="lineno"> 565</span> A(allocator_).deallocate(sk.data_, sk.curr_items_alloc_);</div> |
| <div class="line"><a id="l00566" name="l00566"></a><span class="lineno"> 566</span> </div> |
| <div class="line"><a id="l00567" name="l00567"></a><span class="lineno"> 567</span> sk.data_ = data;</div> |
| <div class="line"><a id="l00568" name="l00568"></a><span class="lineno"> 568</span> sk.weights_ = wts;</div> |
| <div class="line"><a id="l00569" name="l00569"></a><span class="lineno"> 569</span> sk.marks_ = <span class="keyword">nullptr</span>;</div> |
| <div class="line"><a id="l00570" name="l00570"></a><span class="lineno"> 570</span> sk.num_marks_in_h_ = 0;</div> |
| <div class="line"><a id="l00571" name="l00571"></a><span class="lineno"> 571</span> sk.curr_items_alloc_ = result_k + 1;</div> |
| <div class="line"><a id="l00572" name="l00572"></a><span class="lineno"> 572</span> sk.k_ = result_k;</div> |
| <div class="line"><a id="l00573" name="l00573"></a><span class="lineno"> 573</span> sk.n_ = result_n;</div> |
| <div class="line"><a id="l00574" name="l00574"></a><span class="lineno"> 574</span> sk.h_ = result_h;</div> |
| <div class="line"><a id="l00575" name="l00575"></a><span class="lineno"> 575</span> sk.r_ = result_r;</div> |
| <div class="line"><a id="l00576" name="l00576"></a><span class="lineno"> 576</span> sk.total_wt_r_ = result_r_weight;</div> |
| <div class="line"><a id="l00577" name="l00577"></a><span class="lineno"> 577</span>}</div> |
| <div class="line"><a id="l00578" name="l00578"></a><span class="lineno"> 578</span> </div> |
| <div class="line"><a id="l00579" name="l00579"></a><span class="lineno"> 579</span><span class="comment">// this is basically a continuation of get_result(), but modifying the input gadget copy</span></div> |
| <div class="line"><a id="l00580" name="l00580"></a><span class="lineno"> 580</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00581" name="l00581"></a><span class="lineno"> 581</span><span class="keywordtype">void</span> var_opt_union<T, A>::migrate_marked_items_by_decreasing_k(var_opt_sketch<T, A>& gcopy)<span class="keyword"> const </span>{</div> |
| <div class="line"><a id="l00582" name="l00582"></a><span class="lineno"> 582</span> <span class="keyword">const</span> uint32_t r_count = gcopy.r_;</div> |
| <div class="line"><a id="l00583" name="l00583"></a><span class="lineno"> 583</span> <span class="keyword">const</span> uint32_t h_count = gcopy.h_;</div> |
| <div class="line"><a id="l00584" name="l00584"></a><span class="lineno"> 584</span> <span class="keyword">const</span> uint32_t k = gcopy.k_;</div> |
| <div class="line"><a id="l00585" name="l00585"></a><span class="lineno"> 585</span> </div> |
| <div class="line"><a id="l00586" name="l00586"></a><span class="lineno"> 586</span> <span class="comment">// should be ensured by caller</span></div> |
| <div class="line"><a id="l00587" name="l00587"></a><span class="lineno"> 587</span> <span class="keywordflow">if</span> (gcopy.num_marks_in_h_ == 0) <span class="keywordflow">throw</span> std::logic_error(<span class="stringliteral">"unexpectedly found no marked items to migrate"</span>);</div> |
| <div class="line"><a id="l00588" name="l00588"></a><span class="lineno"> 588</span> <span class="comment">// either full (of samples), in pseudo-exact mode, or both</span></div> |
| <div class="line"><a id="l00589" name="l00589"></a><span class="lineno"> 589</span> <span class="keywordflow">if</span> ((r_count != 0) && ((h_count + r_count) != k)) <span class="keywordflow">throw</span> std::logic_error(<span class="stringliteral">"invalid gadget state"</span>);</div> |
| <div class="line"><a id="l00590" name="l00590"></a><span class="lineno"> 590</span> </div> |
| <div class="line"><a id="l00591" name="l00591"></a><span class="lineno"> 591</span> <span class="comment">// if non-full and pseudo-exact, change k so that gcopy is full</span></div> |
| <div class="line"><a id="l00592" name="l00592"></a><span class="lineno"> 592</span> <span class="keywordflow">if</span> ((r_count == 0) && (h_count < k)) {</div> |
| <div class="line"><a id="l00593" name="l00593"></a><span class="lineno"> 593</span> gcopy.k_ = h_count; <span class="comment">// may leve extra space allocated but that's ok</span></div> |
| <div class="line"><a id="l00594" name="l00594"></a><span class="lineno"> 594</span> }</div> |
| <div class="line"><a id="l00595" name="l00595"></a><span class="lineno"> 595</span> </div> |
| <div class="line"><a id="l00596" name="l00596"></a><span class="lineno"> 596</span> <span class="comment">// Now k equals the number of samples, so reducing k will increase tau.</span></div> |
| <div class="line"><a id="l00597" name="l00597"></a><span class="lineno"> 597</span> <span class="comment">// Also, we know that there are at least 2 samples because 0 or 1 would have been handled</span></div> |
| <div class="line"><a id="l00598" name="l00598"></a><span class="lineno"> 598</span> <span class="comment">// by the earlier logic in get_result()</span></div> |
| <div class="line"><a id="l00599" name="l00599"></a><span class="lineno"> 599</span> gcopy.decrease_k_by_1();</div> |
| <div class="line"><a id="l00600" name="l00600"></a><span class="lineno"> 600</span> </div> |
| <div class="line"><a id="l00601" name="l00601"></a><span class="lineno"> 601</span> <span class="comment">// gcopy is now in estimation mode, just like the final result must be (due to marked items)</span></div> |
| <div class="line"><a id="l00602" name="l00602"></a><span class="lineno"> 602</span> <span class="keywordflow">if</span> (gcopy.get_tau() == 0.0) <span class="keywordflow">throw</span> std::logic_error(<span class="stringliteral">"gadget must be in sampling mode"</span>);</div> |
| <div class="line"><a id="l00603" name="l00603"></a><span class="lineno"> 603</span> </div> |
| <div class="line"><a id="l00604" name="l00604"></a><span class="lineno"> 604</span> <span class="comment">// keep reducing k until all marked items have been absorbed into the reservoir</span></div> |
| <div class="line"><a id="l00605" name="l00605"></a><span class="lineno"> 605</span> <span class="keywordflow">while</span> (gcopy.num_marks_in_h_ > 0) {</div> |
| <div class="line"><a id="l00606" name="l00606"></a><span class="lineno"> 606</span> <span class="comment">// gcopy.k_ >= 2 because h_ and r_ are both at least 1, but checked in next method anyway</span></div> |
| <div class="line"><a id="l00607" name="l00607"></a><span class="lineno"> 607</span> gcopy.decrease_k_by_1();</div> |
| <div class="line"><a id="l00608" name="l00608"></a><span class="lineno"> 608</span> }</div> |
| <div class="line"><a id="l00609" name="l00609"></a><span class="lineno"> 609</span> </div> |
| <div class="line"><a id="l00610" name="l00610"></a><span class="lineno"> 610</span> gcopy.strip_marks();</div> |
| <div class="line"><a id="l00611" name="l00611"></a><span class="lineno"> 611</span>}</div> |
| <div class="line"><a id="l00612" name="l00612"></a><span class="lineno"> 612</span> </div> |
| <div class="line"><a id="l00613" name="l00613"></a><span class="lineno"> 613</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00614" name="l00614"></a><span class="lineno"> 614</span><span class="keywordtype">void</span> var_opt_union<T, A>::check_preamble_longs(uint8_t preamble_longs, uint8_t flags) {</div> |
| <div class="line"><a id="l00615" name="l00615"></a><span class="lineno"> 615</span> <span class="keywordtype">bool</span> is_empty(flags & EMPTY_FLAG_MASK);</div> |
| <div class="line"><a id="l00616" name="l00616"></a><span class="lineno"> 616</span> </div> |
| <div class="line"><a id="l00617" name="l00617"></a><span class="lineno"> 617</span> <span class="keywordflow">if</span> (is_empty) {</div> |
| <div class="line"><a id="l00618" name="l00618"></a><span class="lineno"> 618</span> <span class="keywordflow">if</span> (preamble_longs != PREAMBLE_LONGS_EMPTY) {</div> |
| <div class="line"><a id="l00619" name="l00619"></a><span class="lineno"> 619</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Possible corruption: Preamble longs must be "</span></div> |
| <div class="line"><a id="l00620" name="l00620"></a><span class="lineno"> 620</span> + std::to_string(PREAMBLE_LONGS_EMPTY) + <span class="stringliteral">" for an empty sketch. Found: "</span></div> |
| <div class="line"><a id="l00621" name="l00621"></a><span class="lineno"> 621</span> + std::to_string(preamble_longs));</div> |
| <div class="line"><a id="l00622" name="l00622"></a><span class="lineno"> 622</span> }</div> |
| <div class="line"><a id="l00623" name="l00623"></a><span class="lineno"> 623</span> } <span class="keywordflow">else</span> {</div> |
| <div class="line"><a id="l00624" name="l00624"></a><span class="lineno"> 624</span> <span class="keywordflow">if</span> (preamble_longs != PREAMBLE_LONGS_NON_EMPTY) {</div> |
| <div class="line"><a id="l00625" name="l00625"></a><span class="lineno"> 625</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Possible corruption: Preamble longs must be "</span></div> |
| <div class="line"><a id="l00626" name="l00626"></a><span class="lineno"> 626</span> + std::to_string(PREAMBLE_LONGS_NON_EMPTY)</div> |
| <div class="line"><a id="l00627" name="l00627"></a><span class="lineno"> 627</span> + <span class="stringliteral">" for a non-empty sketch. Found: "</span> + std::to_string(preamble_longs));</div> |
| <div class="line"><a id="l00628" name="l00628"></a><span class="lineno"> 628</span> }</div> |
| <div class="line"><a id="l00629" name="l00629"></a><span class="lineno"> 629</span> }</div> |
| <div class="line"><a id="l00630" name="l00630"></a><span class="lineno"> 630</span>}</div> |
| <div class="line"><a id="l00631" name="l00631"></a><span class="lineno"> 631</span> </div> |
| <div class="line"><a id="l00632" name="l00632"></a><span class="lineno"> 632</span><span class="keyword">template</span><<span class="keyword">typename</span> T, <span class="keyword">typename</span> A></div> |
| <div class="line"><a id="l00633" name="l00633"></a><span class="lineno"> 633</span><span class="keywordtype">void</span> var_opt_union<T, A>::check_family_and_serialization_version(uint8_t family_id, uint8_t ser_ver) {</div> |
| <div class="line"><a id="l00634" name="l00634"></a><span class="lineno"> 634</span> <span class="keywordflow">if</span> (family_id == FAMILY_ID) {</div> |
| <div class="line"><a id="l00635" name="l00635"></a><span class="lineno"> 635</span> <span class="keywordflow">if</span> (ser_ver != SER_VER) {</div> |
| <div class="line"><a id="l00636" name="l00636"></a><span class="lineno"> 636</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Possible corruption: VarOpt Union serialization version must be "</span></div> |
| <div class="line"><a id="l00637" name="l00637"></a><span class="lineno"> 637</span> + std::to_string(SER_VER) + <span class="stringliteral">". Found: "</span> + std::to_string(ser_ver));</div> |
| <div class="line"><a id="l00638" name="l00638"></a><span class="lineno"> 638</span> }</div> |
| <div class="line"><a id="l00639" name="l00639"></a><span class="lineno"> 639</span> <span class="keywordflow">return</span>;</div> |
| <div class="line"><a id="l00640" name="l00640"></a><span class="lineno"> 640</span> }</div> |
| <div class="line"><a id="l00641" name="l00641"></a><span class="lineno"> 641</span> <span class="comment">// TODO: extend to handle reservoir sampling</span></div> |
| <div class="line"><a id="l00642" name="l00642"></a><span class="lineno"> 642</span> </div> |
| <div class="line"><a id="l00643" name="l00643"></a><span class="lineno"> 643</span> <span class="keywordflow">throw</span> std::invalid_argument(<span class="stringliteral">"Possible corruption: VarOpt Union family id must be "</span></div> |
| <div class="line"><a id="l00644" name="l00644"></a><span class="lineno"> 644</span> + std::to_string(FAMILY_ID) + <span class="stringliteral">". Found: "</span> + std::to_string(family_id));</div> |
| <div class="line"><a id="l00645" name="l00645"></a><span class="lineno"> 645</span>}</div> |
| <div class="line"><a id="l00646" name="l00646"></a><span class="lineno"> 646</span> </div> |
| <div class="line"><a id="l00647" name="l00647"></a><span class="lineno"> 647</span>} <span class="comment">// namespace datasketches</span></div> |
| <div class="line"><a id="l00648" name="l00648"></a><span class="lineno"> 648</span> </div> |
| <div class="line"><a id="l00649" name="l00649"></a><span class="lineno"> 649</span><span class="preprocessor">#endif </span><span class="comment">// _VAR_OPT_UNION_IMPL_HPP_</span></div> |
| <div class="ttc" id="aclassdatasketches_1_1var__opt__sketch_html"><div class="ttname"><a href="classdatasketches_1_1var__opt__sketch.html">datasketches::var_opt_sketch</a></div><div class="ttdoc">This sketch samples data from a stream of items.</div><div class="ttdef"><b>Definition</b> var_opt_sketch.hpp:67</div></div> |
| <div class="ttc" id="aclassdatasketches_1_1var__opt__union_html"><div class="ttname"><a href="classdatasketches_1_1var__opt__union.html">datasketches::var_opt_union</a></div><div class="ttdoc">Provides a unioning operation over var_opt_sketch objects.</div><div class="ttdef"><b>Definition</b> var_opt_union.hpp:52</div></div> |
| <div class="ttc" id="aclassdatasketches_1_1var__opt__union_html_a8762fed25b3024f07989976344dd0afb"><div class="ttname"><a href="classdatasketches_1_1var__opt__union.html#a8762fed25b3024f07989976344dd0afb">datasketches::var_opt_union::get_serialized_size_bytes</a></div><div class="ttdeci">size_t get_serialized_size_bytes(const SerDe &sd=SerDe()) const</div><div class="ttdoc">Computes size needed to serialize the current state of the union.</div><div class="ttdef"><b>Definition</b> var_opt_union_impl.hpp:218</div></div> |
| <div class="ttc" id="aclassdatasketches_1_1var__opt__union_html_ad20897c5c8bd47f5d4005989bead0e55"><div class="ttname"><a href="classdatasketches_1_1var__opt__union.html#ad20897c5c8bd47f5d4005989bead0e55">datasketches::var_opt_union::reset</a></div><div class="ttdeci">void reset()</div><div class="ttdoc">Resets the union to its default, empty state.</div><div class="ttdef"><b>Definition</b> var_opt_union_impl.hpp:301</div></div> |
| <div class="ttc" id="aclassdatasketches_1_1var__opt__union_html_aed372241c10ffd041bee85602edb199a"><div class="ttname"><a href="classdatasketches_1_1var__opt__union.html#aed372241c10ffd041bee85602edb199a">datasketches::var_opt_union::to_string</a></div><div class="ttdeci">string< A > to_string() const</div><div class="ttdoc">Prints a summary of the union as a string.</div><div class="ttdef"><b>Definition</b> var_opt_union_impl.hpp:309</div></div> |
| <div class="ttc" id="anamespacedatasketches_1_1theta__constants_html_a02799eee5e87428b1c72e6c4c282d68e"><div class="ttname"><a href="namespacedatasketches_1_1theta__constants.html#a02799eee5e87428b1c72e6c4c282d68e">datasketches::theta_constants::DEFAULT_RESIZE_FACTOR</a></div><div class="ttdeci">const resize_factor DEFAULT_RESIZE_FACTOR</div><div class="ttdoc">default resize factor</div><div class="ttdef"><b>Definition</b> theta_constants.hpp:33</div></div> |
| <div class="ttc" id="anamespacedatasketches_html"><div class="ttname"><a href="namespacedatasketches.html">datasketches</a></div><div class="ttdoc">DataSketches namespace.</div><div class="ttdef"><b>Definition</b> binomial_bounds.hpp:38</div></div> |
| </div><!-- fragment --></div><!-- contents --> |
| <!-- start footer part --> |
| <hr class="footer"/><address class="footer"><small> |
| Generated by <a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.8 |
| </small></address> |
| </body> |
| </html> |
