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<a href="struct__like__set_8h.html">Go to the documentation of this file.</a><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"> * &quot;License&quot;); 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>
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<div class="line"><a id="l00017" name="l00017"></a><span class="lineno"> 17</span><span class="comment"> * under the License.</span></div>
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<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">#pragma once</span></div>
<div class="line"><a id="l00021" name="l00021"></a><span class="lineno"> 21</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 &lt;memory&gt;</span></div>
<div class="line"><a id="l00026" name="l00026"></a><span class="lineno"> 26</span><span class="preprocessor">#include &lt;memory_resource&gt;</span></div>
<div class="line"><a id="l00027" name="l00027"></a><span class="lineno"> 27</span><span class="preprocessor">#include &lt;unordered_set&gt;</span></div>
<div class="line"><a id="l00028" name="l00028"></a><span class="lineno"> 28</span><span class="preprocessor">#include &lt;vector&gt;</span></div>
<div class="line"><a id="l00029" name="l00029"></a><span class="lineno"> 29</span> </div>
<div class="line"><a id="l00030" name="l00030"></a><span class="lineno"> 30</span><span class="preprocessor">#include &quot;<a class="code" href="iceberg__export_8h.html">iceberg/iceberg_export.h</a>&quot;</span></div>
<div class="line"><a id="l00031" name="l00031"></a><span class="lineno"> 31</span><span class="preprocessor">#include &quot;<a class="code" href="result_8h.html">iceberg/result.h</a>&quot;</span></div>
<div class="line"><a id="l00032" name="l00032"></a><span class="lineno"> 32</span><span class="preprocessor">#include &quot;<a class="code" href="struct__like_8h.html">iceberg/row/struct_like.h</a>&quot;</span></div>
<div class="line"><a id="l00033" name="l00033"></a><span class="lineno"> 33</span><span class="preprocessor">#include &quot;<a class="code" href="type__fwd_8h.html">iceberg/type_fwd.h</a>&quot;</span></div>
<div class="line"><a id="l00034" name="l00034"></a><span class="lineno"> 34</span> </div>
<div class="line"><a id="l00035" name="l00035"></a><span class="lineno"> 35</span><span class="keyword">namespace </span><a class="code hl_namespace" href="namespaceiceberg.html">iceberg</a> {</div>
<div class="line"><a id="l00036" name="l00036"></a><span class="lineno"> 36</span> </div>
<div class="line"><a id="l00038" name="l00038"></a><span class="lineno"><a class="line" href="namespaceiceberg.html#ae6ae3c9269ba019689daf1fdb3b72871"> 38</a></span>ICEBERG_EXPORT <a class="code hl_typedef" href="namespaceiceberg.html#a9d5594e371beb516b0120e07e69d3af6">Result&lt;bool&gt;</a> <a class="code hl_function" href="namespaceiceberg.html#ae6ae3c9269ba019689daf1fdb3b72871">StructLikeEqual</a>(<span class="keyword">const</span> <a class="code hl_class" href="classiceberg_1_1StructLike.html">StructLike</a>&amp; lhs, <span class="keyword">const</span> <a class="code hl_class" href="classiceberg_1_1StructLike.html">StructLike</a>&amp; rhs);</div>
<div class="line"><a id="l00039" name="l00039"></a><span class="lineno"> 39</span> </div>
<div class="line"><a id="l00050" name="l00050"></a><span class="lineno"> 50</span><span class="keyword">template</span> &lt;<span class="keywordtype">bool</span> kVal<span class="keywordtype">id</span>ate = true&gt;</div>
<div class="foldopen" id="foldopen00051" data-start="{" data-end="};">
<div class="line"><a id="l00051" name="l00051"></a><span class="lineno"><a class="line" href="classiceberg_1_1StructLikeSet.html"> 51</a></span><span class="keyword">class </span>ICEBERG_TEMPLATE_CLASS_EXPORT <a class="code hl_class" href="classiceberg_1_1StructLikeSet.html">StructLikeSet</a> {</div>
<div class="line"><a id="l00052" name="l00052"></a><span class="lineno"> 52</span> <span class="keyword">public</span>:</div>
<div class="line"><a id="l00053" name="l00053"></a><span class="lineno"> 53</span> <span class="keyword">static</span> <span class="keyword">constexpr</span> <span class="keywordtype">size_t</span> kDefaultArenaInitialSize = 64 * 1024;</div>
<div class="line"><a id="l00054" name="l00054"></a><span class="lineno"> 54</span> </div>
<div class="line"><a id="l00056" name="l00056"></a><span class="lineno"><a class="line" href="classiceberg_1_1StructLikeSet.html#a25fd83fa34daa37995af23e1fe2371d4"> 56</a></span> <span class="keyword">explicit</span> <a class="code hl_function" href="classiceberg_1_1StructLikeSet.html#a25fd83fa34daa37995af23e1fe2371d4">StructLikeSet</a>(<span class="keyword">const</span> <a class="code hl_class" href="classiceberg_1_1StructType.html">StructType</a>&amp; type,</div>
<div class="line"><a id="l00057" name="l00057"></a><span class="lineno"> 57</span> <span class="keywordtype">size_t</span> arena_initial_size = kDefaultArenaInitialSize);</div>
<div class="line"><a id="l00058" name="l00058"></a><span class="lineno"> 58</span> </div>
<div class="line"><a id="l00059" name="l00059"></a><span class="lineno"> 59</span> <a class="code hl_class" href="classiceberg_1_1StructLikeSet.html">~StructLikeSet</a>();</div>
<div class="line"><a id="l00060" name="l00060"></a><span class="lineno"> 60</span> </div>
<div class="line"><a id="l00062" name="l00062"></a><span class="lineno"><a class="line" href="classiceberg_1_1StructLikeSet.html#ab598fa01135056ebeb15a5be047fcb87"> 62</a></span> Status <a class="code hl_function" href="classiceberg_1_1StructLikeSet.html#ab598fa01135056ebeb15a5be047fcb87">Insert</a>(<span class="keyword">const</span> <a class="code hl_class" href="classiceberg_1_1StructLike.html">StructLike</a>&amp; row);</div>
<div class="line"><a id="l00063" name="l00063"></a><span class="lineno"> 63</span> </div>
<div class="line"><a id="l00065" name="l00065"></a><span class="lineno"><a class="line" href="classiceberg_1_1StructLikeSet.html#aaef2732619e52c37d30fba696237240d"> 65</a></span> <a class="code hl_typedef" href="namespaceiceberg.html#a9d5594e371beb516b0120e07e69d3af6">Result&lt;bool&gt;</a> <a class="code hl_function" href="classiceberg_1_1StructLikeSet.html#aaef2732619e52c37d30fba696237240d">Contains</a>(<span class="keyword">const</span> <a class="code hl_class" href="classiceberg_1_1StructLike.html">StructLike</a>&amp; row) <span class="keyword">const</span>;</div>
<div class="line"><a id="l00066" name="l00066"></a><span class="lineno"> 66</span> </div>
<div class="line"><a id="l00068" name="l00068"></a><span class="lineno"><a class="line" href="classiceberg_1_1StructLikeSet.html#a7622bd7edb38dce767596e0bb2b31d91"> 68</a></span> <span class="keywordtype">bool</span> <a class="code hl_function" href="classiceberg_1_1StructLikeSet.html#a7622bd7edb38dce767596e0bb2b31d91">IsEmpty</a>() <span class="keyword">const</span>;</div>
<div class="line"><a id="l00069" name="l00069"></a><span class="lineno"> 69</span> </div>
<div class="line"><a id="l00071" name="l00071"></a><span class="lineno"><a class="line" href="classiceberg_1_1StructLikeSet.html#a660d7b87a08023c1520b8aefa5dc0ed7"> 71</a></span> <span class="keywordtype">size_t</span> <a class="code hl_function" href="classiceberg_1_1StructLikeSet.html#a660d7b87a08023c1520b8aefa5dc0ed7">Size</a>() <span class="keyword">const</span>;</div>
<div class="line"><a id="l00072" name="l00072"></a><span class="lineno"> 72</span> </div>
<div class="line"><a id="l00073" name="l00073"></a><span class="lineno"> 73</span> <span class="keyword">private</span>:</div>
<div class="line"><a id="l00075" name="l00075"></a><span class="lineno"> 75</span> <span class="keyword">struct </span>KeyHash {</div>
<div class="line"><a id="l00076" name="l00076"></a><span class="lineno"> 76</span> <span class="keyword">using </span>is_transparent = void;</div>
<div class="line"><a id="l00077" name="l00077"></a><span class="lineno"> 77</span> <span class="keywordtype">size_t</span> operator()(<span class="keyword">const</span> std::unique_ptr&lt;StructLike&gt;&amp; p) <span class="keyword">const</span> <span class="keyword">noexcept</span>;</div>
<div class="line"><a id="l00078" name="l00078"></a><span class="lineno"> 78</span> <span class="keywordtype">size_t</span> operator()(<span class="keyword">const</span> <a class="code hl_class" href="classiceberg_1_1StructLike.html">StructLike</a>&amp; s) <span class="keyword">const</span> <span class="keyword">noexcept</span>;</div>
<div class="line"><a id="l00079" name="l00079"></a><span class="lineno"> 79</span> };</div>
<div class="line"><a id="l00080" name="l00080"></a><span class="lineno"> 80</span> </div>
<div class="line"><a id="l00082" name="l00082"></a><span class="lineno"> 82</span> <span class="keyword">struct </span>KeyEqual {</div>
<div class="line"><a id="l00083" name="l00083"></a><span class="lineno"> 83</span> <span class="keyword">using </span>is_transparent = void;</div>
<div class="line"><a id="l00084" name="l00084"></a><span class="lineno"> 84</span> <span class="keywordtype">bool</span> operator()(<span class="keyword">const</span> std::unique_ptr&lt;StructLike&gt;&amp; lhs,</div>
<div class="line"><a id="l00085" name="l00085"></a><span class="lineno"> 85</span> <span class="keyword">const</span> std::unique_ptr&lt;StructLike&gt;&amp; rhs) <span class="keyword">const</span> <span class="keyword">noexcept</span>;</div>
<div class="line"><a id="l00086" name="l00086"></a><span class="lineno"> 86</span> <span class="keywordtype">bool</span> operator()(<span class="keyword">const</span> <a class="code hl_class" href="classiceberg_1_1StructLike.html">StructLike</a>&amp; lhs,</div>
<div class="line"><a id="l00087" name="l00087"></a><span class="lineno"> 87</span> <span class="keyword">const</span> std::unique_ptr&lt;StructLike&gt;&amp; rhs) <span class="keyword">const</span> <span class="keyword">noexcept</span>;</div>
<div class="line"><a id="l00088" name="l00088"></a><span class="lineno"> 88</span> <span class="keywordtype">bool</span> operator()(<span class="keyword">const</span> std::unique_ptr&lt;StructLike&gt;&amp; lhs,</div>
<div class="line"><a id="l00089" name="l00089"></a><span class="lineno"> 89</span> <span class="keyword">const</span> <a class="code hl_class" href="classiceberg_1_1StructLike.html">StructLike</a>&amp; rhs) <span class="keyword">const</span> <span class="keyword">noexcept</span>;</div>
<div class="line"><a id="l00090" name="l00090"></a><span class="lineno"> 90</span> };</div>
<div class="line"><a id="l00091" name="l00091"></a><span class="lineno"> 91</span> </div>
<div class="line"><a id="l00093" name="l00093"></a><span class="lineno"> 93</span> Result&lt;std::unique_ptr&lt;StructLike&gt;&gt; MakeArenaRow(<span class="keyword">const</span> StructLike&amp; row) <span class="keyword">const</span>;</div>
<div class="line"><a id="l00094" name="l00094"></a><span class="lineno"> 94</span> </div>
<div class="line"><a id="l00097" name="l00097"></a><span class="lineno"> 97</span> Result&lt;Scalar&gt; DeepCopyScalar(<span class="keyword">const</span> Scalar&amp; scalar) <span class="keyword">const</span>;</div>
<div class="line"><a id="l00098" name="l00098"></a><span class="lineno"> 98</span> </div>
<div class="line"><a id="l00100" name="l00100"></a><span class="lineno"> 100</span> std::string_view CopyToArena(std::string_view src) <span class="keyword">const</span>;</div>
<div class="line"><a id="l00101" name="l00101"></a><span class="lineno"> 101</span> </div>
<div class="line"><a id="l00102" name="l00102"></a><span class="lineno"> 102</span> std::vector&lt;std::shared_ptr&lt;Type&gt;&gt; field_types_;</div>
<div class="line"><a id="l00103" name="l00103"></a><span class="lineno"> 103</span> <span class="keyword">mutable</span> std::pmr::monotonic_buffer_resource arena_;</div>
<div class="line"><a id="l00104" name="l00104"></a><span class="lineno"> 104</span> std::unordered_set&lt;std::unique_ptr&lt;StructLike&gt;, KeyHash, KeyEqual&gt; set_;</div>
<div class="line"><a id="l00105" name="l00105"></a><span class="lineno"> 105</span>};</div>
</div>
<div class="line"><a id="l00106" name="l00106"></a><span class="lineno"> 106</span> </div>
<div class="line"><a id="l00107" name="l00107"></a><span class="lineno"> 107</span><span class="keyword">extern</span> <span class="keyword">template</span> <span class="keyword">class </span>ICEBERG_EXTERN_TEMPLATE_CLASS_EXPORT StructLikeSet&lt;true&gt;;</div>
<div class="line"><a id="l00108" name="l00108"></a><span class="lineno"> 108</span><span class="keyword">extern</span> <span class="keyword">template</span> <span class="keyword">class </span>ICEBERG_EXTERN_TEMPLATE_CLASS_EXPORT StructLikeSet&lt;false&gt;;</div>
<div class="line"><a id="l00109" name="l00109"></a><span class="lineno"> 109</span> </div>
<div class="line"><a id="l00110" name="l00110"></a><span class="lineno"> 110</span>} <span class="comment">// namespace iceberg</span></div>
<div class="ttc" id="aclassiceberg_1_1StructLikeSet_html"><div class="ttname"><a href="classiceberg_1_1StructLikeSet.html">iceberg::StructLikeSet</a></div><div class="ttdoc">A set of StructLike rows with type-aware hashing and equality.</div><div class="ttdef"><b>Definition</b> struct_like_set.h:51</div></div>
<div class="ttc" id="aclassiceberg_1_1StructLikeSet_html_a25fd83fa34daa37995af23e1fe2371d4"><div class="ttname"><a href="classiceberg_1_1StructLikeSet.html#a25fd83fa34daa37995af23e1fe2371d4">iceberg::StructLikeSet::StructLikeSet</a></div><div class="ttdeci">StructLikeSet(const StructType &amp;type, size_t arena_initial_size=kDefaultArenaInitialSize)</div><div class="ttdoc">Create a StructLikeSet for the given struct type.</div></div>
<div class="ttc" id="aclassiceberg_1_1StructLikeSet_html_a660d7b87a08023c1520b8aefa5dc0ed7"><div class="ttname"><a href="classiceberg_1_1StructLikeSet.html#a660d7b87a08023c1520b8aefa5dc0ed7">iceberg::StructLikeSet::Size</a></div><div class="ttdeci">size_t Size() const</div><div class="ttdoc">Get the number of elements in the set.</div></div>
<div class="ttc" id="aclassiceberg_1_1StructLikeSet_html_a7622bd7edb38dce767596e0bb2b31d91"><div class="ttname"><a href="classiceberg_1_1StructLikeSet.html#a7622bd7edb38dce767596e0bb2b31d91">iceberg::StructLikeSet::IsEmpty</a></div><div class="ttdeci">bool IsEmpty() const</div><div class="ttdoc">Check if the set is empty.</div></div>
<div class="ttc" id="aclassiceberg_1_1StructLikeSet_html_aaef2732619e52c37d30fba696237240d"><div class="ttname"><a href="classiceberg_1_1StructLikeSet.html#aaef2732619e52c37d30fba696237240d">iceberg::StructLikeSet::Contains</a></div><div class="ttdeci">Result&lt; bool &gt; Contains(const StructLike &amp;row) const</div><div class="ttdoc">Check if the set contains a row.</div></div>
<div class="ttc" id="aclassiceberg_1_1StructLikeSet_html_ab598fa01135056ebeb15a5be047fcb87"><div class="ttname"><a href="classiceberg_1_1StructLikeSet.html#ab598fa01135056ebeb15a5be047fcb87">iceberg::StructLikeSet::Insert</a></div><div class="ttdeci">Status Insert(const StructLike &amp;row)</div><div class="ttdoc">Insert a row into the set.</div></div>
<div class="ttc" id="aclassiceberg_1_1StructLike_html"><div class="ttname"><a href="classiceberg_1_1StructLike.html">iceberg::StructLike</a></div><div class="ttdoc">An immutable struct-like wrapper.</div><div class="ttdef"><b>Definition</b> struct_like.h:62</div></div>
<div class="ttc" id="aclassiceberg_1_1StructType_html"><div class="ttname"><a href="classiceberg_1_1StructType.html">iceberg::StructType</a></div><div class="ttdoc">A data type representing a struct with nested fields.</div><div class="ttdef"><b>Definition</b> type.h:119</div></div>
<div class="ttc" id="aiceberg__export_8h_html"><div class="ttname"><a href="iceberg__export_8h.html">iceberg_export.h</a></div><div class="ttdoc">Define symbol visibility macros for core Iceberg APIs.</div></div>
<div class="ttc" id="anamespaceiceberg_html"><div class="ttname"><a href="namespaceiceberg.html">iceberg</a></div><div class="ttdoc">Core Apache Iceberg C++ APIs.</div><div class="ttdef"><b>Definition</b> arrow_io_util.h:33</div></div>
<div class="ttc" id="anamespaceiceberg_html_a9d5594e371beb516b0120e07e69d3af6"><div class="ttname"><a href="namespaceiceberg.html#a9d5594e371beb516b0120e07e69d3af6">iceberg::Result</a></div><div class="ttdeci">std::expected&lt; T, E &gt; Result</div><div class="ttdoc">Result alias.</div><div class="ttdef"><b>Definition</b> result.h:88</div></div>
<div class="ttc" id="anamespaceiceberg_html_ae6ae3c9269ba019689daf1fdb3b72871"><div class="ttname"><a href="namespaceiceberg.html#ae6ae3c9269ba019689daf1fdb3b72871">iceberg::StructLikeEqual</a></div><div class="ttdeci">ICEBERG_EXPORT Result&lt; bool &gt; StructLikeEqual(const StructLike &amp;lhs, const StructLike &amp;rhs)</div><div class="ttdoc">Compare two StructLike rows by scalar values.</div></div>
<div class="ttc" id="aresult_8h_html"><div class="ttname"><a href="result_8h.html">result.h</a></div><div class="ttdoc">Define Result, Status, and error helpers.</div></div>
<div class="ttc" id="astruct__like_8h_html"><div class="ttname"><a href="struct__like_8h.html">struct_like.h</a></div></div>
<div class="ttc" id="atype__fwd_8h_html"><div class="ttname"><a href="type__fwd_8h.html">type_fwd.h</a></div></div>
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