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From w...@apache.org
Subject [41/51] [partial] arrow-site git commit: Update C++ and Python API documentation for 0.7.0
Date Mon, 18 Sep 2017 20:42:40 GMT
http://git-wip-us.apache.org/repos/asf/arrow-site/blob/a4dfae21/docs/cpp/buffer_8h_source.html
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diff --git a/docs/cpp/buffer_8h_source.html b/docs/cpp/buffer_8h_source.html
index 32df125..b7fc587 100644
--- a/docs/cpp/buffer_8h_source.html
+++ b/docs/cpp/buffer_8h_source.html
@@ -67,66 +67,67 @@ $(function() {
 <div class="title">buffer.h</div>  </div>
 </div><!--header-->
 <div class="contents">
-<a href="buffer_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">// Licensed to the Apache Software Foundation (ASF) under one</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">// or more contributor license agreements.  See the NOTICE file</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">// distributed with this work for additional information</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">// regarding copyright ownership.  The ASF licenses this file</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">// to you under the Apache License, Version 2.0 (the</span></div><div class="line"><a name="l00006"></a><span class=
 "lineno">    6</span>&#160;<span class="comment">// &quot;License&quot;); you may not use this file except in compliance</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">// with the License.  You may obtain a copy of the License at</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">//   http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">// Unless required by applicable law or agreed to in writing,</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">// software distributed un
 der the License is distributed on an</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">// &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment">// KIND, either express or implied.  See the License for the</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment">// specific language governing permissions and limitations</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment">// under the License.</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;</div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#ifndef ARROW_BUFFER_H</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19<
 /span>&#160;<span class="preprocessor">#define ARROW_BUFFER_H</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;</div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="preprocessor">#include &lt;algorithm&gt;</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#include &lt;cstdint&gt;</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="preprocessor">#include &lt;cstring&gt;</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#include &lt;memory&gt;</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="preprocessor">#include &lt;string&gt;</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;</div><div class="line"><a name="l00027"></a><span 
 class="lineno">   27</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="status_8h.html">arrow/status.h</a>&quot;</span></div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="bit-util_8h.html">arrow/util/bit-util.h</a>&quot;</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="macros_8h.html">arrow/util/macros.h</a>&quot;</span></div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="visibility_8h.html">arrow/util/visibility.h</a>&quot;</span></div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;</div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacearr
 ow.html">arrow</a> {</div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;<span class="keyword">class </span>MemoryPool;</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="keyword">class </span>Status;</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="comment">// ----------------------------------------------------------------------</span></div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="comment">// Buffer classes</span></div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;</div><div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html">   48</a></span>&#160;<span class="ke
 yword">class </span>ARROW_EXPORT <a class="code" href="classarrow_1_1_buffer.html">Buffer</a> {</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#a801078c559b0c351f1ca5a6b6a04488f">   50</a></span>&#160;  <a class="code" href="classarrow_1_1_buffer.html#a801078c559b0c351f1ca5a6b6a04488f">Buffer</a>(<span class="keyword">const</span> uint8_t* data, int64_t size)</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;      : is_mutable_(false), data_(data), size_(size), capacity_(size) {}</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;  <span class="keyword">virtual</span> ~<a class="code" href="classarrow_1_1_buffer.html">Buffer</a>() = <span class="keyword
 flow">default</span>;</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;</div><div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#af4fd71c2df93484b86a3ab1924193b05">   62</a></span>&#160;  <a class="code" href="classarrow_1_1_buffer.html#af4fd71c2df93484b86a3ab1924193b05">Buffer</a>(<span class="keyword">const</span> std::shared_ptr&lt;Buffer&gt;&amp; parent, int64_t offset, int64_t size)</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;      : <a class="code" href="classarrow_1_1_buffer.html">Buffer</a>(parent-&gt;data() + offset, size) {</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;    parent_ = parent;</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;  }</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;</div><div class="line"><a name="l00067"></a><span c
 lass="lineno"><a class="line" href="classarrow_1_1_buffer.html#a8244f9c354364788161f11bedc6f2ab9">   67</a></span>&#160;  <span class="keywordtype">bool</span> <a class="code" href="classarrow_1_1_buffer.html#a8244f9c354364788161f11bedc6f2ab9">is_mutable</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> is_mutable_; }</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;  <span class="keywordtype">bool</span> Equals(<span class="keyword">const</span> <a class="code" href="classarrow_1_1_buffer.html">Buffer</a>&amp; other, int64_t nbytes) <span class="keyword">const</span>;</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;  <span class="keywordtype">bool</span> Equals(<span class="keyword">const</span> <a class="code" href="classarrow_1_1_buffer.html">Buffer</a>&amp; other) <span class="keyword">const</spa
 n>;</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;  <a class="code" href="classarrow_1_1_status.html">Status</a> Copy(int64_t start, int64_t nbytes, <a class="code" href="classarrow_1_1_memory_pool.html">MemoryPool</a>* pool,</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;              std::shared_ptr&lt;Buffer&gt;* out) <span class="keyword">const</span>;</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;  <a class="code" href="classarrow_1_1_status.html">Status</a> Copy(int64_t start, int64_t nbytes, std::shared_ptr&lt;Buffer&gt;* out) <span class="keyword">const</span>;</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;</div><div class="line"><a name="l00081"></a><span class="li
 neno"><a class="line" href="classarrow_1_1_buffer.html#a4c75902129b5f2fb471fd166907361dc">   81</a></span>&#160;  int64_t <a class="code" href="classarrow_1_1_buffer.html#a4c75902129b5f2fb471fd166907361dc">capacity</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> capacity_; }</div><div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#a81c3dd8c11dd804be2ada6df5ce8fad2">   82</a></span>&#160;  <span class="keyword">const</span> uint8_t* <a class="code" href="classarrow_1_1_buffer.html#a81c3dd8c11dd804be2ada6df5ce8fad2">data</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> data_; }</div><div class="line"><a name="l00083"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#a5a9cb9324d3f7e323eb070b553c925aa">   83</a></span>&#160;  uint8_t* <a class="code" href="classarrow_1_1_buffer.html#a5a9cb9324d3f7e323eb070b553c925aa">mutable_data</a>() { <
 span class="keywordflow">return</span> mutable_data_; }</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;</div><div class="line"><a name="l00085"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#a2a49871341c300996a39145d22aa8054">   85</a></span>&#160;  int64_t <a class="code" href="classarrow_1_1_buffer.html#a2a49871341c300996a39145d22aa8054">size</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> size_; }</div><div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;</div><div class="line"><a name="l00087"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#ac58d818fa0d8a5db215ca858c5e6aece">   87</a></span>&#160;  std::shared_ptr&lt;Buffer&gt; <a class="code" href="classarrow_1_1_buffer.html#ac58d818fa0d8a5db215ca858c5e6aece">parent</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> parent_; }</div><div class="line">
 <a name="l00088"></a><span class="lineno">   88</span>&#160;</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160; <span class="keyword">protected</span>:</div><div class="line"><a name="l00090"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#acfefa777b4d7d6a2f7a8ea23549dac46">   90</a></span>&#160;  <span class="keywordtype">bool</span> <a class="code" href="classarrow_1_1_buffer.html#acfefa777b4d7d6a2f7a8ea23549dac46">is_mutable_</a>;</div><div class="line"><a name="l00091"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#af468a7a1f346f9a6a29738bf585a3548">   91</a></span>&#160;  <span class="keyword">const</span> uint8_t* <a class="code" href="classarrow_1_1_buffer.html#af468a7a1f346f9a6a29738bf585a3548">data_</a>;</div><div class="line"><a name="l00092"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#ad36e306b99bc8427865bcac9b2d4f7e5">   92</a></span>&#160;  uint8_t* <a cla
 ss="code" href="classarrow_1_1_buffer.html#ad36e306b99bc8427865bcac9b2d4f7e5">mutable_data_</a>;</div><div class="line"><a name="l00093"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#a3500e42217635843b3b34bfe92b2f73a">   93</a></span>&#160;  int64_t <a class="code" href="classarrow_1_1_buffer.html#a3500e42217635843b3b34bfe92b2f73a">size_</a>;</div><div class="line"><a name="l00094"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#a45ee7f1e21f9f3f4cb8233be8d64731e">   94</a></span>&#160;  int64_t <a class="code" href="classarrow_1_1_buffer.html#a45ee7f1e21f9f3f4cb8233be8d64731e">capacity_</a>;</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;</div><div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;  <span class="comment">// nullptr by default, but may be set</span></div><div class="line"><a name="l00097"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer
 .html#a3feb5a490cbd9699837067931476c65b">   97</a></span>&#160;  std::shared_ptr&lt;Buffer&gt; <a class="code" href="classarrow_1_1_buffer.html#a3feb5a490cbd9699837067931476c65b">parent_</a>;</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160; <span class="keyword">private</span>:</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;  <a class="code" href="macros_8h.html#af8df3547bfde53a5acb93e2607b0034a">DISALLOW_COPY_AND_ASSIGN</a>(<a class="code" href="classarrow_1_1_buffer.html">Buffer</a>);</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;};</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> std::shared_ptr&lt;Buffer
 &gt; GetBufferFromString(<span class="keyword">const</span> std::string&amp; str) {</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;  <span class="keywordflow">return</span> std::make_shared&lt;Buffer&gt;(<span class="keyword">reinterpret_cast&lt;</span><span class="keyword">const </span>uint8_t*<span class="keyword">&gt;</span>(str.c_str()),</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;                                  static_cast&lt;int64_t&gt;(str.size()));</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;}</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> std::shared_ptr&lt;Buffer&gt; SliceBuffer(<span class="keyword">const</span> std::shared_ptr&lt;Buffer&gt;&amp; buffer,</div><div class
 ="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;                                                  int64_t offset, int64_t length) {</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;  <span class="keywordflow">return</span> std::make_shared&lt;Buffer&gt;(buffer, offset, length);</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;}</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;std::shared_ptr&lt;Buffer&gt; ARROW_EXPORT</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;<a class="code" href="namespacearrow.html#aabc35a93d464e6761337e1be60131586">SliceMutableBuffer</a>(<span class="keyword">const</span> std::shared_ptr&lt;Buffer&gt;&amp; buffer, int64_t offset, int64_t length);</div><div class="line"><a name="l00125"></a><span class="lineno">  125</spa
 n>&#160;</div><div class="line"><a name="l00127"></a><span class="lineno"><a class="line" href="classarrow_1_1_mutable_buffer.html">  127</a></span>&#160;<span class="keyword">class </span>ARROW_EXPORT <a class="code" href="classarrow_1_1_mutable_buffer.html">MutableBuffer</a> : <span class="keyword">public</span> <a class="code" href="classarrow_1_1_buffer.html">Buffer</a> {</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00129"></a><span class="lineno"><a class="line" href="classarrow_1_1_mutable_buffer.html#ae5484cdf9af52f3740bf4b5f1888b38f">  129</a></span>&#160;  <a class="code" href="classarrow_1_1_mutable_buffer.html#ae5484cdf9af52f3740bf4b5f1888b38f">MutableBuffer</a>(uint8_t* data, int64_t size) : <a class="code" href="classarrow_1_1_buffer.html">Buffer</a>(data, size) {</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;    mutable_data_
  = data;</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;    is_mutable_ = <span class="keyword">true</span>;</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;  }</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;  <a class="code" href="classarrow_1_1_mutable_buffer.html">MutableBuffer</a>(<span class="keyword">const</span> std::shared_ptr&lt;Buffer&gt;&amp; parent, int64_t offset, int64_t size);</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160; <span class="keyword">protected</span>:</div><div class="line"><a name="l00137"></a><span class="lineno"><a class="line" href="classarrow_1_1_mutable_buffer.html#a3b01c712ad660aea1b10a0ad2b232ac7">  137</a></span>&#160;  <a class="code" href="
 classarrow_1_1_mutable_buffer.html#a3b01c712ad660aea1b10a0ad2b232ac7">MutableBuffer</a>() : <a class="code" href="classarrow_1_1_buffer.html">Buffer</a>(nullptr, 0) {}</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;};</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;</div><div class="line"><a name="l00140"></a><span class="lineno"><a class="line" href="classarrow_1_1_resizable_buffer.html">  140</a></span>&#160;<span class="keyword">class </span>ARROW_EXPORT <a class="code" href="classarrow_1_1_resizable_buffer.html">ResizableBuffer</a> : <span class="keyword">public</span> <a class="code" href="classarrow_1_1_mutable_buffer.html">MutableBuffer</a> {</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;  <span class="keyword">virtual</span> <a class="code" href="cla
 ssarrow_1_1_status.html">Status</a> Resize(int64_t new_size, <span class="keywordtype">bool</span> shrink_to_fit = <span class="keyword">true</span>) = 0;</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;  <span class="keyword">virtual</span> <a class="code" href="classarrow_1_1_status.html">Status</a> Reserve(int64_t new_capacity) = 0;</div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;</div><div class="line"><a name="l00156"></a><span class="lineno"><a class="line" href="classarrow_1_1_resizable_buffer.html#a1112c5344bc770e927eef31d4c0187b2">  156</a></span>&#160;  <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="classarrow_1_1_resizab
 le_buffer.html#a1112c5344bc770e927eef31d4c0187b2">TypedResize</a>(int64_t new_nb_elements, <span class="keywordtype">bool</span> shrink_to_fit = <span class="keyword">true</span>) {</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;    <span class="keywordflow">return</span> Resize(<span class="keyword">sizeof</span>(T) * new_nb_elements, shrink_to_fit);</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;  }</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;</div><div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;</div><div class="line"><a name="l00161"></a><span class="lineno"><a class="line" href="classarrow_1_1_resizable_buffer.html#af38b01cff76a88738fce6bc19cdc84d6">  161</a></span>&#160;  <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="cl
 assarrow_1_1_resizable_buffer.html#af38b01cff76a88738fce6bc19cdc84d6">TypedReserve</a>(int64_t new_nb_elements) {</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;    <span class="keywordflow">return</span> Reserve(<span class="keyword">sizeof</span>(T) * new_nb_elements);</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;  }</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160; <span class="keyword">protected</span>:</div><div class="line"><a name="l00166"></a><span class="lineno"><a class="line" href="classarrow_1_1_resizable_buffer.html#a57de64a67003a42d06a4dc9d48c60857">  166</a></span>&#160;  <a class="code" href="classarrow_1_1_resizable_buffer.html#a57de64a67003a42d06a4dc9d48c60857">ResizableBuffer</a>(uint8_t* data, int64_t size) : <a class="code" href="classarrow_1_1_mutable_buffer.html">MutableB
 uffer</a>(data, size) {}</div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;};</div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;</div><div class="line"><a name="l00170"></a><span class="lineno"><a class="line" href="classarrow_1_1_pool_buffer.html">  170</a></span>&#160;<span class="keyword">class </span>ARROW_EXPORT <a class="code" href="classarrow_1_1_pool_buffer.html">PoolBuffer</a> : <span class="keyword">public</span> <a class="code" href="classarrow_1_1_resizable_buffer.html">ResizableBuffer</a> {</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;  <span class="keyword">explicit</span> <a class="code" href="classarrow_1_1_pool_buffer.html">PoolBuffer</a>(<a class="code" href="classarrow_1_1_memory_pool.html">MemoryPool</a>* pool = <span class="keyword">nullptr<
 /span>);</div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;  <span class="keyword">virtual</span> ~<a class="code" href="classarrow_1_1_pool_buffer.html">PoolBuffer</a>();</div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;</div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;  <a class="code" href="classarrow_1_1_status.html">Status</a> Resize(int64_t new_size, <span class="keywordtype">bool</span> shrink_to_fit = <span class="keyword">true</span>) <span class="keyword">override</span>;</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;  <a class="code" href="classarrow_1_1_status.html">Status</a> Reserve(int64_t new_capacity) <span class="keyword">override</span>;</div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160; <span class="keyword">priv
 ate</span>:</div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;  <a class="code" href="classarrow_1_1_memory_pool.html">MemoryPool</a>* pool_;</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;};</div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;</div><div class="line"><a name="l00182"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_builder.html">  182</a></span>&#160;<span class="keyword">class </span>ARROW_EXPORT <a class="code" href="classarrow_1_1_buffer_builder.html">BufferBuilder</a> {</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00184"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_builder.html#ac574703fa5c840f84056200bc553365a">  184</a></span>&#160;  <span class="keyword">explicit</span> <a class="code" href="classarrow_1_1_buff
 er_builder.html#ac574703fa5c840f84056200bc553365a">BufferBuilder</a>(<a class="code" href="classarrow_1_1_memory_pool.html">MemoryPool</a>* pool)</div><div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;      : pool_(pool), data_(nullptr), capacity_(0), size_(0) {}</div><div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;</div><div class="line"><a name="l00188"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_builder.html#ae5513e6855e7a49170fd2b9178fa2bc2">  188</a></span>&#160;  <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="classarrow_1_1_buffer_builder.html#ae5513e6855e7a49170fd2b9178fa2bc2">Resize</a>(int64_t elements) {</div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;    <span class="comment">// Resize(0) is a no-op</span></div><div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;    <span class="keywordflow">if<
 /span> (elements == 0) {</div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="classarrow_1_1_status.html#a5c0b0031db6eeec3dcc70485d24cfe03">Status::OK</a>();</div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;    }</div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;    <span class="keywordflow">if</span> (capacity_ == 0) {</div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;      buffer_ = std::make_shared&lt;PoolBuffer&gt;(pool_);</div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;    }</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;    int64_t old_capacity = capacity_;</div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;    <a class="code" href="status_8h.html#a0a03bcf7fdbd9a96c67afa05fc0a545d"
 >RETURN_NOT_OK</a>(buffer_-&gt;Resize(elements));</div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;    capacity_ = buffer_-&gt;capacity();</div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;    data_ = buffer_-&gt;mutable_data();</div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;    <span class="keywordflow">if</span> (capacity_ &gt; old_capacity) {</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;      memset(data_ + old_capacity, 0, capacity_ - old_capacity);</div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;    }</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="classarrow_1_1_status.html#a5c0b0031db6eeec3dcc70485d24cfe03">Status::OK</a>();</div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#1
 60;  }</div><div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;</div><div class="line"><a name="l00206"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_builder.html#a861a36589ea59cee1125d3251bfae30c">  206</a></span>&#160;  <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="classarrow_1_1_buffer_builder.html#a861a36589ea59cee1125d3251bfae30c">Append</a>(<span class="keyword">const</span> uint8_t* data, int64_t length) {</div><div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;    <span class="keywordflow">if</span> (capacity_ &lt; length + size_) {</div><div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;      int64_t new_capacity = BitUtil::NextPower2(length + size_);</div><div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;      <a class="code" href="status_8h.html#a0a03bcf7fdbd9a96c67afa05fc0a545d">RETURN_NOT_OK</a>(Resize(n
 ew_capacity));</div><div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;    }</div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;    UnsafeAppend(data, length);</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="classarrow_1_1_status.html#a5c0b0031db6eeec3dcc70485d24cfe03">Status::OK</a>();</div><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;  }</div><div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;</div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;  <span class="comment">// Advance pointer and zero out memory</span></div><div class="line"><a name="l00216"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_builder.html#aeb244237aa429582fbe9812e261eced0">  216</a></span>&#160;  <a class="code" href="classarrow_1_1_status.
 html">Status</a> <a class="code" href="classarrow_1_1_buffer_builder.html#aeb244237aa429582fbe9812e261eced0">Advance</a>(int64_t length) {</div><div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;    <span class="keywordflow">if</span> (capacity_ &lt; length + size_) {</div><div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;      int64_t new_capacity = BitUtil::NextPower2(length + size_);</div><div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;      <a class="code" href="status_8h.html#a0a03bcf7fdbd9a96c67afa05fc0a545d">RETURN_NOT_OK</a>(Resize(new_capacity));</div><div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;    }</div><div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;    memset(data_ + size_, 0, static_cast&lt;size_t&gt;(length));</div><div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;    size_ += length;</div><div
  class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="classarrow_1_1_status.html#a5c0b0031db6eeec3dcc70485d24cfe03">Status::OK</a>();</div><div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;  }</div><div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;</div><div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;  <span class="comment">// Unsafe methods don&#39;t check existing size</span></div><div class="line"><a name="l00227"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_builder.html#acb2881c13261f9755518d76ed5c4b9b6">  227</a></span>&#160;  <span class="keywordtype">void</span> <a class="code" href="classarrow_1_1_buffer_builder.html#acb2881c13261f9755518d76ed5c4b9b6">UnsafeAppend</a>(<span class="keyword">const</span> uint8_t* data, int64_t length) {</div><div class="line"><a name="l00228"></a><spa
 n class="lineno">  228</span>&#160;    memcpy(data_ + size_, data, static_cast&lt;size_t&gt;(length));</div><div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;    size_ += length;</div><div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;  }</div><div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;</div><div class="line"><a name="l00232"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_builder.html#a3ca4455a595c3b8864feae94044f399e">  232</a></span>&#160;  <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="classarrow_1_1_buffer_builder.html#a3ca4455a595c3b8864feae94044f399e">Finish</a>(std::shared_ptr&lt;Buffer&gt;* out) {</div><div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;    <span class="comment">// Do not shrink to fit to avoid unneeded realloc</span></div><div class="line"><a name="l00234"></a><span class="lineno">  234
 </span>&#160;    <span class="keywordflow">if</span> (size_ &gt; 0) {</div><div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;      <a class="code" href="status_8h.html#a0a03bcf7fdbd9a96c67afa05fc0a545d">RETURN_NOT_OK</a>(buffer_-&gt;Resize(size_, <span class="keyword">false</span>));</div><div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;    }</div><div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;    *out = buffer_;</div><div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;    Reset();</div><div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="classarrow_1_1_status.html#a5c0b0031db6eeec3dcc70485d24cfe03">Status::OK</a>();</div><div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;  }</div><div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#1
 60;</div><div class="line"><a name="l00242"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_builder.html#ae8d4ba958542c2f74dbab41d1456e6aa">  242</a></span>&#160;  <span class="keywordtype">void</span> <a class="code" href="classarrow_1_1_buffer_builder.html#ae8d4ba958542c2f74dbab41d1456e6aa">Reset</a>() {</div><div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;    buffer_ = <span class="keyword">nullptr</span>;</div><div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;    capacity_ = size_ = 0;</div><div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;  }</div><div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;</div><div class="line"><a name="l00247"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_builder.html#a1728b024c99b4255177659c6dcd0b650">  247</a></span>&#160;  int64_t <a class="code" href="classarrow_1_1_buffer_builder.html#a1728b
 024c99b4255177659c6dcd0b650">capacity</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> capacity_; }</div><div class="line"><a name="l00248"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_builder.html#a9c3803b7ecb1c2c122a95b2346fbb0a2">  248</a></span>&#160;  int64_t <a class="code" href="classarrow_1_1_buffer_builder.html#a9c3803b7ecb1c2c122a95b2346fbb0a2">length</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> size_; }</div><div class="line"><a name="l00249"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_builder.html#a44d11575460cb39216ae61999a29fa2f">  249</a></span>&#160;  <span class="keyword">const</span> uint8_t* <a class="code" href="classarrow_1_1_buffer_builder.html#a44d11575460cb39216ae61999a29fa2f">data</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> data_; }</div><div class="line"><a name="l00250"></a><span class="lineno">  25
 0</span>&#160;</div><div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160; <span class="keyword">protected</span>:</div><div class="line"><a name="l00252"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_builder.html#a17f7b6b8005f1f14be61c5270776158a">  252</a></span>&#160;  std::shared_ptr&lt;PoolBuffer&gt; <a class="code" href="classarrow_1_1_buffer_builder.html#a17f7b6b8005f1f14be61c5270776158a">buffer_</a>;</div><div class="line"><a name="l00253"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_builder.html#ad4b857975203084d5856758a90f669a4">  253</a></span>&#160;  <a class="code" href="classarrow_1_1_memory_pool.html">MemoryPool</a>* <a class="code" href="classarrow_1_1_buffer_builder.html#ad4b857975203084d5856758a90f669a4">pool_</a>;</div><div class="line"><a name="l00254"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_builder.html#a58dae3a8f530eba77e77d045d86e8396">  254</a></span>&#160;  ui
 nt8_t* <a class="code" href="classarrow_1_1_buffer_builder.html#a58dae3a8f530eba77e77d045d86e8396">data_</a>;</div><div class="line"><a name="l00255"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_builder.html#a91cd1d83d90defa391115f3fbdc03d63">  255</a></span>&#160;  int64_t <a class="code" href="classarrow_1_1_buffer_builder.html#a91cd1d83d90defa391115f3fbdc03d63">capacity_</a>;</div><div class="line"><a name="l00256"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_builder.html#ae2580f25b0c08e4bf6e0656d365b0bff">  256</a></span>&#160;  int64_t <a class="code" href="classarrow_1_1_buffer_builder.html#ae2580f25b0c08e4bf6e0656d365b0bff">size_</a>;</div><div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;};</div><div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;</div><div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;<span class="keyword">template</span> &lt;<spa
 n class="keyword">typename</span> T&gt;</div><div class="line"><a name="l00260"></a><span class="lineno"><a class="line" href="classarrow_1_1_typed_buffer_builder.html">  260</a></span>&#160;<span class="keyword">class </span>ARROW_EXPORT <a class="code" href="classarrow_1_1_typed_buffer_builder.html">TypedBufferBuilder</a> : <span class="keyword">public</span> <a class="code" href="classarrow_1_1_buffer_builder.html">BufferBuilder</a> {</div><div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00262"></a><span class="lineno"><a class="line" href="classarrow_1_1_typed_buffer_builder.html#a471e5bdbf33da425e857f07e3833622e">  262</a></span>&#160;  <span class="keyword">explicit</span> <a class="code" href="classarrow_1_1_typed_buffer_builder.html#a471e5bdbf33da425e857f07e3833622e">TypedBufferBuilder</a>(<a class="code" href="classarrow_1_1_memory_pool.html">MemoryPool</a>* pool) : <a class=
 "code" href="classarrow_1_1_buffer_builder.html">BufferBuilder</a>(pool) {}</div><div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;</div><div class="line"><a name="l00264"></a><span class="lineno"><a class="line" href="classarrow_1_1_typed_buffer_builder.html#a3f077d697ae44153089db2907e8f2ab2">  264</a></span>&#160;  <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="classarrow_1_1_typed_buffer_builder.html#a3f077d697ae44153089db2907e8f2ab2">Append</a>(T arithmetic_value) {</div><div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;    static_assert(std::is_arithmetic&lt;T&gt;::value,</div><div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;                  <span class="stringliteral">&quot;Convenience buffer append only supports arithmetic types&quot;</span>);</div><div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;    <span class="keywordflow">r
 eturn</span> <a class="code" href="classarrow_1_1_buffer_builder.html#a861a36589ea59cee1125d3251bfae30c">BufferBuilder::Append</a>(reinterpret_cast&lt;uint8_t*&gt;(&amp;arithmetic_value),</div><div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;                                 <span class="keyword">sizeof</span>(T));</div><div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;  }</div><div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;</div><div class="line"><a name="l00271"></a><span class="lineno"><a class="line" href="classarrow_1_1_typed_buffer_builder.html#a0dee0463148d313243336cac5ab8427e">  271</a></span>&#160;  <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="classarrow_1_1_typed_buffer_builder.html#a0dee0463148d313243336cac5ab8427e">Append</a>(<span class="keyword">const</span> T* arithmetic_values, int64_t num_elements) {</div><div class="line"><a name="l00272"></a
 ><span class="lineno">  272</span>&#160;    static_assert(std::is_arithmetic&lt;T&gt;::value,</div><div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;                  <span class="stringliteral">&quot;Convenience buffer append only supports arithmetic types&quot;</span>);</div><div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="classarrow_1_1_buffer_builder.html#a861a36589ea59cee1125d3251bfae30c">BufferBuilder::Append</a>(reinterpret_cast&lt;const uint8_t*&gt;(arithmetic_values),</div><div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;                                 num_elements * <span class="keyword">sizeof</span>(T));</div><div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;  }</div><div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;</div><div class="line"><a name="l00278"></a><span
  class="lineno"><a class="line" href="classarrow_1_1_typed_buffer_builder.html#a8eae2200ae9aa357f838ce84a81abbf5">  278</a></span>&#160;  <span class="keywordtype">void</span> <a class="code" href="classarrow_1_1_typed_buffer_builder.html#a8eae2200ae9aa357f838ce84a81abbf5">UnsafeAppend</a>(T arithmetic_value) {</div><div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;    static_assert(std::is_arithmetic&lt;T&gt;::value,</div><div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;                  <span class="stringliteral">&quot;Convenience buffer append only supports arithmetic types&quot;</span>);</div><div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;    <a class="code" href="classarrow_1_1_buffer_builder.html#acb2881c13261f9755518d76ed5c4b9b6">BufferBuilder::UnsafeAppend</a>(reinterpret_cast&lt;uint8_t*&gt;(&amp;arithmetic_value), <span class="keyword">sizeof</span>(T));</div><div class="line"><a name=
 "l00282"></a><span class="lineno">  282</span>&#160;  }</div><div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;</div><div class="line"><a name="l00284"></a><span class="lineno"><a class="line" href="classarrow_1_1_typed_buffer_builder.html#aa5c75cc2d299ca15f57cec9d16ddbb9b">  284</a></span>&#160;  <span class="keywordtype">void</span> <a class="code" href="classarrow_1_1_typed_buffer_builder.html#aa5c75cc2d299ca15f57cec9d16ddbb9b">UnsafeAppend</a>(<span class="keyword">const</span> T* arithmetic_values, int64_t num_elements) {</div><div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;    static_assert(std::is_arithmetic&lt;T&gt;::value,</div><div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;                  <span class="stringliteral">&quot;Convenience buffer append only supports arithmetic types&quot;</span>);</div><div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;    <a cl
 ass="code" href="classarrow_1_1_buffer_builder.html#acb2881c13261f9755518d76ed5c4b9b6">BufferBuilder::UnsafeAppend</a>(reinterpret_cast&lt;const uint8_t*&gt;(arithmetic_values),</div><div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;                                num_elements * <span class="keyword">sizeof</span>(T));</div><div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;  }</div><div class="line"><a name="l00290"></a><span class="lineno">  290</span>&#160;</div><div class="line"><a name="l00291"></a><span class="lineno"><a class="line" href="classarrow_1_1_typed_buffer_builder.html#aaed11cafb3f536a491514a70958c87db">  291</a></span>&#160;  <span class="keyword">const</span> T* <a class="code" href="classarrow_1_1_typed_buffer_builder.html#aaed11cafb3f536a491514a70958c87db">data</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> <span class="keyword">reinterpret_cast&lt;</span><span class="keyw
 ord">const </span>T*<span class="keyword">&gt;</span>(data_); }</div><div class="line"><a name="l00292"></a><span class="lineno"><a class="line" href="classarrow_1_1_typed_buffer_builder.html#a1f49bc2502db1d20acb2dae6280a8837">  292</a></span>&#160;  int64_t <a class="code" href="classarrow_1_1_typed_buffer_builder.html#a1f49bc2502db1d20acb2dae6280a8837">length</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> size_ / <span class="keyword">sizeof</span>(T); }</div><div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;};</div><div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;</div><div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;<a class="code" href="classarrow_1_1_status.html">Status</a> ARROW_EXPORT <a class="code" href="namespacearrow.html#a4e4daf985e41d6879c9dbb0131157c51">AllocateBuffer</a>(<a class="code" href="classarrow_1_1_memory_pool.html">MemoryPool</a>* pool, 
 int64_t size,</div><div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;                                   std::shared_ptr&lt;MutableBuffer&gt;* out);</div><div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;</div><div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;<a class="code" href="classarrow_1_1_status.html">Status</a> ARROW_EXPORT <a class="code" href="namespacearrow.html#aaff2ff0a4a9e24a3bf581548e2874ce3">AllocateResizableBuffer</a>(<a class="code" href="classarrow_1_1_memory_pool.html">MemoryPool</a>* pool, int64_t size,</div><div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;                                            std::shared_ptr&lt;ResizableBuffer&gt;* out);</div><div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;</div><div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;}  <span class="comment">// namespace arrow<
 /span></div><div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;</div><div class="line"><a name="l00310"></a><span class="lineno">  310</span>&#160;<span class="preprocessor">#endif  // ARROW_BUFFER_H</span></div><div class="ttc" id="classarrow_1_1_mutable_buffer_html_a3b01c712ad660aea1b10a0ad2b232ac7"><div class="ttname"><a href="classarrow_1_1_mutable_buffer.html#a3b01c712ad660aea1b10a0ad2b232ac7">arrow::MutableBuffer::MutableBuffer</a></div><div class="ttdeci">MutableBuffer()</div><div class="ttdef"><b>Definition:</b> buffer.h:137</div></div>
-<div class="ttc" id="classarrow_1_1_mutable_buffer_html_ae5484cdf9af52f3740bf4b5f1888b38f"><div class="ttname"><a href="classarrow_1_1_mutable_buffer.html#ae5484cdf9af52f3740bf4b5f1888b38f">arrow::MutableBuffer::MutableBuffer</a></div><div class="ttdeci">MutableBuffer(uint8_t *data, int64_t size)</div><div class="ttdef"><b>Definition:</b> buffer.h:129</div></div>
-<div class="ttc" id="classarrow_1_1_buffer_html_ac58d818fa0d8a5db215ca858c5e6aece"><div class="ttname"><a href="classarrow_1_1_buffer.html#ac58d818fa0d8a5db215ca858c5e6aece">arrow::Buffer::parent</a></div><div class="ttdeci">std::shared_ptr&lt; Buffer &gt; parent() const</div><div class="ttdef"><b>Definition:</b> buffer.h:87</div></div>
-<div class="ttc" id="classarrow_1_1_buffer_builder_html_acb2881c13261f9755518d76ed5c4b9b6"><div class="ttname"><a href="classarrow_1_1_buffer_builder.html#acb2881c13261f9755518d76ed5c4b9b6">arrow::BufferBuilder::UnsafeAppend</a></div><div class="ttdeci">void UnsafeAppend(const uint8_t *data, int64_t length)</div><div class="ttdef"><b>Definition:</b> buffer.h:227</div></div>
-<div class="ttc" id="classarrow_1_1_mutable_buffer_html"><div class="ttname"><a href="classarrow_1_1_mutable_buffer.html">arrow::MutableBuffer</a></div><div class="ttdoc">A Buffer whose contents can be mutated. May or may not own its data. </div><div class="ttdef"><b>Definition:</b> buffer.h:127</div></div>
-<div class="ttc" id="classarrow_1_1_buffer_html_a45ee7f1e21f9f3f4cb8233be8d64731e"><div class="ttname"><a href="classarrow_1_1_buffer.html#a45ee7f1e21f9f3f4cb8233be8d64731e">arrow::Buffer::capacity_</a></div><div class="ttdeci">int64_t capacity_</div><div class="ttdef"><b>Definition:</b> buffer.h:94</div></div>
-<div class="ttc" id="classarrow_1_1_buffer_builder_html_ae8d4ba958542c2f74dbab41d1456e6aa"><div class="ttname"><a href="classarrow_1_1_buffer_builder.html#ae8d4ba958542c2f74dbab41d1456e6aa">arrow::BufferBuilder::Reset</a></div><div class="ttdeci">void Reset()</div><div class="ttdef"><b>Definition:</b> buffer.h:242</div></div>
-<div class="ttc" id="classarrow_1_1_buffer_html_acfefa777b4d7d6a2f7a8ea23549dac46"><div class="ttname"><a href="classarrow_1_1_buffer.html#acfefa777b4d7d6a2f7a8ea23549dac46">arrow::Buffer::is_mutable_</a></div><div class="ttdeci">bool is_mutable_</div><div class="ttdef"><b>Definition:</b> buffer.h:90</div></div>
-<div class="ttc" id="classarrow_1_1_pool_buffer_html"><div class="ttname"><a href="classarrow_1_1_pool_buffer.html">arrow::PoolBuffer</a></div><div class="ttdoc">A Buffer whose lifetime is tied to a particular MemoryPool. </div><div class="ttdef"><b>Definition:</b> buffer.h:170</div></div>
-<div class="ttc" id="classarrow_1_1_resizable_buffer_html_a57de64a67003a42d06a4dc9d48c60857"><div class="ttname"><a href="classarrow_1_1_resizable_buffer.html#a57de64a67003a42d06a4dc9d48c60857">arrow::ResizableBuffer::ResizableBuffer</a></div><div class="ttdeci">ResizableBuffer(uint8_t *data, int64_t size)</div><div class="ttdef"><b>Definition:</b> buffer.h:166</div></div>
-<div class="ttc" id="namespacearrow_html_a4e4daf985e41d6879c9dbb0131157c51"><div class="ttname"><a href="namespacearrow.html#a4e4daf985e41d6879c9dbb0131157c51">arrow::AllocateBuffer</a></div><div class="ttdeci">Status AllocateBuffer(MemoryPool *pool, int64_t size, std::shared_ptr&lt; MutableBuffer &gt; *out)</div><div class="ttdoc">Allocate a new mutable buffer from a memory pool. </div></div>
-<div class="ttc" id="classarrow_1_1_typed_buffer_builder_html_a471e5bdbf33da425e857f07e3833622e"><div class="ttname"><a href="classarrow_1_1_typed_buffer_builder.html#a471e5bdbf33da425e857f07e3833622e">arrow::TypedBufferBuilder::TypedBufferBuilder</a></div><div class="ttdeci">TypedBufferBuilder(MemoryPool *pool)</div><div class="ttdef"><b>Definition:</b> buffer.h:262</div></div>
-<div class="ttc" id="classarrow_1_1_buffer_html_a4c75902129b5f2fb471fd166907361dc"><div class="ttname"><a href="classarrow_1_1_buffer.html#a4c75902129b5f2fb471fd166907361dc">arrow::Buffer::capacity</a></div><div class="ttdeci">int64_t capacity() const</div><div class="ttdef"><b>Definition:</b> buffer.h:81</div></div>
-<div class="ttc" id="classarrow_1_1_resizable_buffer_html_a1112c5344bc770e927eef31d4c0187b2"><div class="ttname"><a href="classarrow_1_1_resizable_buffer.html#a1112c5344bc770e927eef31d4c0187b2">arrow::ResizableBuffer::TypedResize</a></div><div class="ttdeci">Status TypedResize(int64_t new_nb_elements, bool shrink_to_fit=true)</div><div class="ttdef"><b>Definition:</b> buffer.h:156</div></div>
-<div class="ttc" id="classarrow_1_1_status_html"><div class="ttname"><a href="classarrow_1_1_status.html">arrow::Status</a></div><div class="ttdef"><b>Definition:</b> status.h:84</div></div>
-<div class="ttc" id="classarrow_1_1_buffer_builder_html_a3ca4455a595c3b8864feae94044f399e"><div class="ttname"><a href="classarrow_1_1_buffer_builder.html#a3ca4455a595c3b8864feae94044f399e">arrow::BufferBuilder::Finish</a></div><div class="ttdeci">Status Finish(std::shared_ptr&lt; Buffer &gt; *out)</div><div class="ttdef"><b>Definition:</b> buffer.h:232</div></div>
+<a href="buffer_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="comment">// Licensed to the Apache Software Foundation (ASF) under one</span></div><div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">// or more contributor license agreements.  See the NOTICE file</span></div><div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment">// distributed with this work for additional information</span></div><div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment">// regarding copyright ownership.  The ASF licenses this file</span></div><div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment">// to you under the Apache License, Version 2.0 (the</span></div><div class="line"><a name="l00006"></a><span class=
 "lineno">    6</span>&#160;<span class="comment">// &quot;License&quot;); you may not use this file except in compliance</span></div><div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment">// with the License.  You may obtain a copy of the License at</span></div><div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment">//   http://www.apache.org/licenses/LICENSE-2.0</span></div><div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment">//</span></div><div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment">// Unless required by applicable law or agreed to in writing,</span></div><div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment">// software distributed un
 der the License is distributed on an</span></div><div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment">// &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY</span></div><div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment">// KIND, either express or implied.  See the License for the</span></div><div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment">// specific language governing permissions and limitations</span></div><div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="comment">// under the License.</span></div><div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;</div><div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#ifndef ARROW_BUFFER_H</span></div><div class="line"><a name="l00019"></a><span class="lineno">   19<
 /span>&#160;<span class="preprocessor">#define ARROW_BUFFER_H</span></div><div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;</div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="preprocessor">#include &lt;algorithm&gt;</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#include &lt;cstdint&gt;</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;<span class="preprocessor">#include &lt;cstring&gt;</span></div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#include &lt;memory&gt;</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;<span class="preprocessor">#include &lt;string&gt;</span></div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#include &lt;type_traits
 &gt;</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;</div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="status_8h.html">arrow/status.h</a>&quot;</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="bit-util_8h.html">arrow/util/bit-util.h</a>&quot;</span></div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="macros_8h.html">arrow/util/macros.h</a>&quot;</span></div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="visibility_8h.html">arrow/util/visibility.h</a>&quot;</span></div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;</div><div 
 class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacearrow.html">arrow</a> {</div><div class="line"><a name="l00034"></a><span class="lineno">   34</span>&#160;</div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;<span class="keyword">class </span>MemoryPool;</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;<span class="comment">// ----------------------------------------------------------------------</span></div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;<span class="comment">// Buffer classes</span></div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;</div><div class="line"><a name="l00048"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html">   48</a></span>&
 #160;<span class="keyword">class </span>ARROW_EXPORT <a class="code" href="classarrow_1_1_buffer.html">Buffer</a> {</div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00050"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#a801078c559b0c351f1ca5a6b6a04488f">   50</a></span>&#160;  <a class="code" href="classarrow_1_1_buffer.html#a801078c559b0c351f1ca5a6b6a04488f">Buffer</a>(<span class="keyword">const</span> uint8_t* data, int64_t size)</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;      : is_mutable_(false), data_(data), size_(size), capacity_(size) {}</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;  <span class="keyword">virtual</span> ~<a class="code" href="classarrow_1_1_buffer.html">Buffer</a>() = 
 <span class="keywordflow">default</span>;</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;</div><div class="line"><a name="l00062"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#af694696afedb9313cf5dc874ffa9a453">   62</a></span>&#160;  <a class="code" href="classarrow_1_1_buffer.html#af694696afedb9313cf5dc874ffa9a453">Buffer</a>(<span class="keyword">const</span> std::shared_ptr&lt;Buffer&gt;&amp; parent, <span class="keyword">const</span> int64_t offset, <span class="keyword">const</span> int64_t size)</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;      : <a class="code" href="classarrow_1_1_buffer.html">Buffer</a>(parent-&gt;data() + offset, size) {</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;    parent_ = parent;</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;  }</div><div class="line"><a name="l00066"></a><
 span class="lineno">   66</span>&#160;</div><div class="line"><a name="l00067"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#a8244f9c354364788161f11bedc6f2ab9">   67</a></span>&#160;  <span class="keywordtype">bool</span> <a class="code" href="classarrow_1_1_buffer.html#a8244f9c354364788161f11bedc6f2ab9">is_mutable</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> is_mutable_; }</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;  <span class="keywordtype">bool</span> Equals(<span class="keyword">const</span> <a class="code" href="classarrow_1_1_buffer.html">Buffer</a>&amp; other, int64_t nbytes) <span class="keyword">const</span>;</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;  <span class="keywordtype">bool</span> Equals(<span class="keyword">const</span> <a class="code"
  href="classarrow_1_1_buffer.html">Buffer</a>&amp; other) <span class="keyword">const</span>;</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;  <a class="code" href="classarrow_1_1_status.html">Status</a> Copy(<span class="keyword">const</span> int64_t start, <span class="keyword">const</span> int64_t nbytes, <a class="code" href="classarrow_1_1_memory_pool.html">MemoryPool</a>* pool,</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;              std::shared_ptr&lt;Buffer&gt;* out) <span class="keyword">const</span>;</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;  <a class="code" href="classarrow_1_1_status.html">Status</a> Copy(<span class="keyword">const</span> int64_t start, <span class="keyword">const</span> i
 nt64_t nbytes,</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;              std::shared_ptr&lt;Buffer&gt;* out) <span class="keyword">const</span>;</div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;</div><div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#a4c75902129b5f2fb471fd166907361dc">   82</a></span>&#160;  int64_t <a class="code" href="classarrow_1_1_buffer.html#a4c75902129b5f2fb471fd166907361dc">capacity</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> capacity_; }</div><div class="line"><a name="l00083"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#a81c3dd8c11dd804be2ada6df5ce8fad2">   83</a></span>&#160;  <span class="keyword">const</span> uint8_t* <a class="code" href="classarrow_1_1_buffer.html#a81c3dd8c11dd804be2ada6df5ce8fad2">data</a>()<span class="keyword"> const </span>{ <span clas
 s="keywordflow">return</span> data_; }</div><div class="line"><a name="l00084"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#a5a9cb9324d3f7e323eb070b553c925aa">   84</a></span>&#160;  uint8_t* <a class="code" href="classarrow_1_1_buffer.html#a5a9cb9324d3f7e323eb070b553c925aa">mutable_data</a>() { <span class="keywordflow">return</span> mutable_data_; }</div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;</div><div class="line"><a name="l00086"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#a2a49871341c300996a39145d22aa8054">   86</a></span>&#160;  int64_t <a class="code" href="classarrow_1_1_buffer.html#a2a49871341c300996a39145d22aa8054">size</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> size_; }</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;</div><div class="line"><a name="l00088"></a><span class="lineno"><a class="line" hre
 f="classarrow_1_1_buffer.html#ac58d818fa0d8a5db215ca858c5e6aece">   88</a></span>&#160;  std::shared_ptr&lt;Buffer&gt; <a class="code" href="classarrow_1_1_buffer.html#ac58d818fa0d8a5db215ca858c5e6aece">parent</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> parent_; }</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160; <span class="keyword">protected</span>:</div><div class="line"><a name="l00091"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#acfefa777b4d7d6a2f7a8ea23549dac46">   91</a></span>&#160;  <span class="keywordtype">bool</span> <a class="code" href="classarrow_1_1_buffer.html#acfefa777b4d7d6a2f7a8ea23549dac46">is_mutable_</a>;</div><div class="line"><a name="l00092"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#af468a7a1f346f9a6a29738bf585a3548">   92</a></span>&#160;  
 <span class="keyword">const</span> uint8_t* <a class="code" href="classarrow_1_1_buffer.html#af468a7a1f346f9a6a29738bf585a3548">data_</a>;</div><div class="line"><a name="l00093"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#ad36e306b99bc8427865bcac9b2d4f7e5">   93</a></span>&#160;  uint8_t* <a class="code" href="classarrow_1_1_buffer.html#ad36e306b99bc8427865bcac9b2d4f7e5">mutable_data_</a>;</div><div class="line"><a name="l00094"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#a3500e42217635843b3b34bfe92b2f73a">   94</a></span>&#160;  int64_t <a class="code" href="classarrow_1_1_buffer.html#a3500e42217635843b3b34bfe92b2f73a">size_</a>;</div><div class="line"><a name="l00095"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#a45ee7f1e21f9f3f4cb8233be8d64731e">   95</a></span>&#160;  int64_t <a class="code" href="classarrow_1_1_buffer.html#a45ee7f1e21f9f3f4cb8233be8d64731e">capacity_</a>;</div><div class="
 line"><a name="l00096"></a><span class="lineno">   96</span>&#160;</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;  <span class="comment">// nullptr by default, but may be set</span></div><div class="line"><a name="l00098"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer.html#a3feb5a490cbd9699837067931476c65b">   98</a></span>&#160;  std::shared_ptr&lt;Buffer&gt; <a class="code" href="classarrow_1_1_buffer.html#a3feb5a490cbd9699837067931476c65b">parent_</a>;</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160; <span class="keyword">private</span>:</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;  <a class="code" href="macros_8h.html#a40d72e185b1488b5659b761f0b6115bb">ARROW_DISALLOW_COPY_AND_ASSIGN</a>(<a class="code" href="classarrow_1_1_buffer.html">Buffer</a>);</div><div class="
 line"><a name="l00102"></a><span class="lineno">  102</span>&#160;};</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> std::shared_ptr&lt;Buffer&gt; GetBufferFromString(<span class="keyword">const</span> std::string&amp; str) {</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;  <span class="keywordflow">return</span> std::make_shared&lt;Buffer&gt;(<span class="keyword">reinterpret_cast&lt;</span><span class="keyword">const </span>uint8_t*<span class="keyword">&gt;</span>(str.c_str()),</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;                                  static_cast&lt;int64_t&gt;(str.size()));</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;}</div><div class="line"><a name="l00114"><
 /a><span class="lineno">  114</span>&#160;</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;<span class="keyword">static</span> <span class="keyword">inline</span> std::shared_ptr&lt;Buffer&gt; SliceBuffer(<span class="keyword">const</span> std::shared_ptr&lt;Buffer&gt;&amp; buffer,</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;                                                  <span class="keyword">const</span> int64_t offset,</div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;                                                  <span class="keyword">const</span> int64_t length) {</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;  <span class="keywordflow">return</span> std::make_shared&lt;Buffer&gt;(buffer, offset, length);</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;}</div><div class="line"><a name="l00122"></a
 ><span class="lineno">  122</span>&#160;</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;ARROW_EXPORT</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;std::shared_ptr&lt;Buffer&gt; <a class="code" href="namespacearrow.html#a44c8f98a2874248eb7d5658ccee5718e">SliceMutableBuffer</a>(<span class="keyword">const</span> std::shared_ptr&lt;Buffer&gt;&amp; buffer,</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;                                           <span class="keyword">const</span> int64_t offset, <span class="keyword">const</span> int64_t length);</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;</div><div class="line"><a name="l00130"></a><span class="lineno"><a class="line" href="classarrow_1_1_mutable_buffer.html">  130</a></span>&#160;<span class="keyword">class </span>ARROW_EXPORT <a class="code" href="classarrow_1_1_mutable_buffer.html">Mutab
 leBuffer</a> : <span class="keyword">public</span> <a class="code" href="classarrow_1_1_buffer.html">Buffer</a> {</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00132"></a><span class="lineno"><a class="line" href="classarrow_1_1_mutable_buffer.html#a541704eb0b7720aa712e294634cf58f9">  132</a></span>&#160;  <a class="code" href="classarrow_1_1_mutable_buffer.html#a541704eb0b7720aa712e294634cf58f9">MutableBuffer</a>(uint8_t* data, <span class="keyword">const</span> int64_t size) : <a class="code" href="classarrow_1_1_buffer.html">Buffer</a>(data, size) {</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;    mutable_data_ = data;</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;    is_mutable_ = <span class="keyword">true</span>;</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;  
 }</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;  <a class="code" href="classarrow_1_1_mutable_buffer.html">MutableBuffer</a>(<span class="keyword">const</span> std::shared_ptr&lt;Buffer&gt;&amp; parent, <span class="keyword">const</span> int64_t offset,</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;                <span class="keyword">const</span> int64_t size);</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160; <span class="keyword">protected</span>:</div><div class="line"><a name="l00141"></a><span class="lineno"><a class="line" href="classarrow_1_1_mutable_buffer.html#a3b01c712ad660aea1b10a0ad2b232ac7">  141</a></span>&#160;  <a class="code" href="classarrow_1_1_mutable_buffer.html#a3b01c712ad660aea1b10a0ad2
 b232ac7">MutableBuffer</a>() : <a class="code" href="classarrow_1_1_buffer.html">Buffer</a>(nullptr, 0) {}</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;};</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;</div><div class="line"><a name="l00144"></a><span class="lineno"><a class="line" href="classarrow_1_1_resizable_buffer.html">  144</a></span>&#160;<span class="keyword">class </span>ARROW_EXPORT <a class="code" href="classarrow_1_1_resizable_buffer.html">ResizableBuffer</a> : <span class="keyword">public</span> <a class="code" href="classarrow_1_1_mutable_buffer.html">MutableBuffer</a> {</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;  <span class="keyword">virtual</span> <a class="code" href="classarrow_1_1_status.html">Status</a> Resize(<span class="keywo
 rd">const</span> int64_t new_size, <span class="keywordtype">bool</span> shrink_to_fit = <span class="keyword">true</span>) = 0;</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;  <span class="keyword">virtual</span> <a class="code" href="classarrow_1_1_status.html">Status</a> Reserve(<span class="keyword">const</span> int64_t new_capacity) = 0;</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;</div><div class="line"><a name="l00160"></a><span class="lineno"><a class="line" href="classarrow_1_1_resizable_buffer.html#a2dd63263ee81611a4c43a2da9abfb6ae">  160</a></span>&#160;  <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="classarrow_1_
 1_resizable_buffer.html#a2dd63263ee81611a4c43a2da9abfb6ae">TypedResize</a>(<span class="keyword">const</span> int64_t new_nb_elements, <span class="keywordtype">bool</span> shrink_to_fit = <span class="keyword">true</span>) {</div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;    <span class="keywordflow">return</span> Resize(<span class="keyword">sizeof</span>(T) * new_nb_elements, shrink_to_fit);</div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;  }</div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;  <span class="keyword">template</span> &lt;<span class="keyword">class</span> T&gt;</div><div class="line"><a name="l00165"></a><span class="lineno"><a class="line" href="classarrow_1_1_resizable_buffer.html#ade214c893245689bc51965c90c4cd739">  165</a></span>&#160;  <a class="code" href="classarrow_1_1_stat
 us.html">Status</a> <a class="code" href="classarrow_1_1_resizable_buffer.html#ade214c893245689bc51965c90c4cd739">TypedReserve</a>(<span class="keyword">const</span> int64_t new_nb_elements) {</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;    <span class="keywordflow">return</span> Reserve(<span class="keyword">sizeof</span>(T) * new_nb_elements);</div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;  }</div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160; <span class="keyword">protected</span>:</div><div class="line"><a name="l00170"></a><span class="lineno"><a class="line" href="classarrow_1_1_resizable_buffer.html#a57de64a67003a42d06a4dc9d48c60857">  170</a></span>&#160;  <a class="code" href="classarrow_1_1_resizable_buffer.html#a57de64a67003a42d06a4dc9d48c60857">ResizableBuffer</a>(uint8_t* data, int
 64_t size) : <a class="code" href="classarrow_1_1_mutable_buffer.html">MutableBuffer</a>(data, size) {}</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;};</div><div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;</div><div class="line"><a name="l00174"></a><span class="lineno"><a class="line" href="classarrow_1_1_pool_buffer.html">  174</a></span>&#160;<span class="keyword">class </span>ARROW_EXPORT <a class="code" href="classarrow_1_1_pool_buffer.html">PoolBuffer</a> : <span class="keyword">public</span> <a class="code" href="classarrow_1_1_resizable_buffer.html">ResizableBuffer</a> {</div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;  <span class="keyword">explicit</span> <a class="code" href="classarrow_1_1_pool_buffer.html">PoolBuffer</a>(<a class="code" href="classar
 row_1_1_memory_pool.html">MemoryPool</a>* pool = <span class="keyword">nullptr</span>);</div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;  <span class="keyword">virtual</span> ~<a class="code" href="classarrow_1_1_pool_buffer.html">PoolBuffer</a>();</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;</div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;  <a class="code" href="classarrow_1_1_status.html">Status</a> Resize(<span class="keyword">const</span> int64_t new_size, <span class="keywordtype">bool</span> shrink_to_fit = <span class="keyword">true</span>) <span class="keyword">override</span>;</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;  <a class="code" href="classarrow_1_1_status.html">Status</a> Reserve(<span class="keyword">const</span> int64_t new_capacity) <span class="keyword">override</span>;</div><div class="line"><a name="l00181"></a><
 span class="lineno">  181</span>&#160;</div><div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160; <span class="keyword">private</span>:</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;  <a class="code" href="classarrow_1_1_memory_pool.html">MemoryPool</a>* pool_;</div><div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;};</div><div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;</div><div class="line"><a name="l00186"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_builder.html">  186</a></span>&#160;<span class="keyword">class </span>ARROW_EXPORT <a class="code" href="classarrow_1_1_buffer_builder.html">BufferBuilder</a> {</div><div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160; <span class="keyword">public</span>:</div><div class="line"><a name="l00188"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_bu
 ilder.html#ac574703fa5c840f84056200bc553365a">  188</a></span>&#160;  <span class="keyword">explicit</span> <a class="code" href="classarrow_1_1_buffer_builder.html#ac574703fa5c840f84056200bc553365a">BufferBuilder</a>(<a class="code" href="classarrow_1_1_memory_pool.html">MemoryPool</a>* pool)</div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;      : pool_(pool), data_(nullptr), capacity_(0), size_(0) {}</div><div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;</div><div class="line"><a name="l00192"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_builder.html#a8bdd654fab07e1151945e8ba4e6ee39e">  192</a></span>&#160;  <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="classarrow_1_1_buffer_builder.html#a8bdd654fab07e1151945e8ba4e6ee39e">Resize</a>(<span class="keyword">const</span> int64_t elements) {</div><div class="line"><a name="l00193"></a><span class="lineno">  193</
 span>&#160;    <span class="comment">// Resize(0) is a no-op</span></div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;    <span class="keywordflow">if</span> (elements == 0) {</div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;      <span class="keywordflow">return</span> <a class="code" href="classarrow_1_1_status.html#a5c0b0031db6eeec3dcc70485d24cfe03">Status::OK</a>();</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;    }</div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;    <span class="keywordflow">if</span> (capacity_ == 0) {</div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;      buffer_ = std::make_shared&lt;PoolBuffer&gt;(pool_);</div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;    }</div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;    int64_t 
 old_capacity = capacity_;</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;    <a class="code" href="status_8h.html#a0a03bcf7fdbd9a96c67afa05fc0a545d">RETURN_NOT_OK</a>(buffer_-&gt;Resize(elements));</div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;    capacity_ = buffer_-&gt;capacity();</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;    data_ = buffer_-&gt;mutable_data();</div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;    <span class="keywordflow">if</span> (capacity_ &gt; old_capacity) {</div><div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;      memset(data_ + old_capacity, 0, capacity_ - old_capacity);</div><div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;    }</div><div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;    <span class="keywordflow">return</span
 > <a class="code" href="classarrow_1_1_status.html#a5c0b0031db6eeec3dcc70485d24cfe03">Status::OK</a>();</div><div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;  }</div><div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;</div><div class="line"><a name="l00210"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_builder.html#a861a36589ea59cee1125d3251bfae30c">  210</a></span>&#160;  <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="classarrow_1_1_buffer_builder.html#a861a36589ea59cee1125d3251bfae30c">Append</a>(<span class="keyword">const</span> uint8_t* data, int64_t length) {</div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;    <span class="keywordflow">if</span> (capacity_ &lt; length + size_) {</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;      int64_t new_capacity = BitUtil::NextPower2(length + size_);</di
 v><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;      <a class="code" href="status_8h.html#a0a03bcf7fdbd9a96c67afa05fc0a545d">RETURN_NOT_OK</a>(Resize(new_capacity));</div><div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;    }</div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;    UnsafeAppend(data, length);</div><div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="classarrow_1_1_status.html#a5c0b0031db6eeec3dcc70485d24cfe03">Status::OK</a>();</div><div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;  }</div><div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;</div><div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;  <span class="keyword">template</span> &lt;<span class="keywordtype">size_t</span> NBYTES&gt;</div><div class=
 "line"><a name="l00220"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_builder.html#a6d1756245bb061a66e69e0e8ffbd4aac">  220</a></span>&#160;  <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="classarrow_1_1_buffer_builder.html#a6d1756245bb061a66e69e0e8ffbd4aac">Append</a>(<span class="keyword">const</span> std::array&lt;uint8_t, NBYTES&gt;&amp; data) {</div><div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;    constexpr <span class="keyword">auto</span> nbytes = <span class="keyword">static_cast&lt;</span>int64_t<span class="keyword">&gt;</span>(NBYTES);</div><div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;    <span class="keywordflow">if</span> (capacity_ &lt; nbytes + size_) {</div><div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;      int64_t new_capacity = BitUtil::NextPower2(nbytes + size_);</div><div class="line"><a name="l00224"></a><s
 pan class="lineno">  224</span>&#160;      <a class="code" href="status_8h.html#a0a03bcf7fdbd9a96c67afa05fc0a545d">RETURN_NOT_OK</a>(Resize(new_capacity));</div><div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;    }</div><div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;</div><div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;    std::copy(data.cbegin(), data.cend(), data_ + size_);</div><div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;    size_ += nbytes;</div><div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="classarrow_1_1_status.html#a5c0b0031db6eeec3dcc70485d24cfe03">Status::OK</a>();</div><div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;  }</div><div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;</div><div class="line">
 <a name="l00232"></a><span class="lineno">  232</span>&#160;  <span class="comment">// Advance pointer and zero out memory</span></div><div class="line"><a name="l00233"></a><span class="lineno"><a class="line" href="classarrow_1_1_buffer_builder.html#ab7ba2e8716f69a8bccd68aa33cc12286">  233</a></span>&#160;  <a class="code" href="classarrow_1_1_status.html">Status</a> <a class="code" href="classarrow_1_1_buffer_builder.html#ab7ba2e8716f69a8bccd68aa33cc12286">Advance</a>(<span class="keyword">const</span> int64_t length) {</div><div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;    <span class="keywordflow">if</span> (capacity_ &lt; length + size_) {</div><div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;      int64_t new_capacity = BitUtil::NextPower2(length + size_);</div><div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;      <a class="code" href="status_8h.html#a0a03bcf7fdbd9a96c67afa05fc0a545d">R
 ETURN_NOT_OK</a>(Resize(new_capacity));</div><div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;    }</div><div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;    memset(data_ + size_, 0, static_cast&lt;size_t&gt;(length));</div><div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;    size_ += length;</div><div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;    <span class="keywordflow">return</span> <a class="code" href="classarrow_1_1_status.html#a5c0b0031db6eeec3dcc70485d24cfe03">Status::OK</a>

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