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   <div class="section" id="utilities">
 <h1>Utilities<a class="headerlink" href="#utilities" title="Permalink to this headline">¶</a></h1>
 <div class="section" id="decimal-numbers">
 <h2>Decimal Numbers<a class="headerlink" href="#decimal-numbers" title="Permalink to this headline">¶</a></h2>
 <dl class="cpp class">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow10Decimal128E">
 <span id="_CPPv3N5arrow10Decimal128E"></span><span id="_CPPv2N5arrow10Decimal128E"></span><span id="arrow::Decimal128"></span><span class="target" id="classarrow_1_1_decimal128"></span><span class="k"><span class="pre">class</span></span><span class="w"> </span><span class="sig-prename descclassname"><span class="n"><span class="pre">arrow</span></span><span class="p"><span class="pre">::</span></span></span><span class="sig-name descname"><span class="n"><span class="pre">Decimal128</span></span></span><span class="w"> </span><span class="p"><span class="pre">:</span></span><span class="w"> </span><span class="k"><span class="pre">public</span></span><span class="w"> </span><span class="n"><span class="pre">arrow</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">BasicDecimal128</span></span><a class="headerlink" href="#_CPPv4N5arrow10Decimal128E" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Represents a signed 128-bit integer in two’s complement. </p>
 <p>Calculations wrap around and overflow is ignored. The max decimal precision that can be safely represented is 38 significant digits.</p>
 <p>For a discussion of the algorithms, look at Knuth’s volume 2, Semi-numerical Algorithms section 4.3.1.</p>
 <p>Adapted from the Apache ORC C++ implementation</p>
 <p>The implementation is split into two parts :</p>
 <p><ol class="loweralpha simple">
 <li><p>BasicDecimal128<ul class="simple">
 <li><p>can be safely compiled to IR without references to libstdc++.</p></li>
 </ul>
 </p></li>
 <li><p><a class="reference internal" href="#classarrow_1_1_decimal128"><span class="std std-ref">Decimal128</span></a><ul class="simple">
 <li><p>has additional functionality on top of BasicDecimal128 to deal with strings and streams. </p></li>
 </ul>
 </p></li>
 </ol>
 </p>
 <div class="breathe-sectiondef docutils container">
 <p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-functions">Public Functions</p>
 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow10Decimal12810Decimal128ERK15BasicDecimal128">
 <span id="_CPPv3N5arrow10Decimal12810Decimal128ERK15BasicDecimal128"></span><span id="_CPPv2N5arrow10Decimal12810Decimal128ERK15BasicDecimal128"></span><span id="arrow::Decimal128::Decimal128__BasicDecimal128CRCE"></span><span class="target" id="classarrow_1_1_decimal128_1a28ea319ebcd0aedcdb419d90ca172a4b"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><span class="k"><span class="pre">constexpr</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Decimal128</span></span></span><span class="sig-paren">(</span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="n"><span class="pre">BasicDecimal128</span></span><span class="w"> </span><span class="p"><span class="pre">&amp;</span></span><span class="n sig-param"><span class="pre">value</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">noexcept</span></span><a class="headerlink" href="#_CPPv4N5arrow10Decimal12810Decimal128ERK15BasicDecimal128" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>constructor creates a <a class="reference internal" href="#classarrow_1_1_decimal128"><span class="std std-ref">Decimal128</span></a> from a BasicDecimal128. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow10Decimal12810Decimal128ERKNSt6stringE">
 <span id="_CPPv3N5arrow10Decimal12810Decimal128ERKNSt6stringE"></span><span id="_CPPv2N5arrow10Decimal12810Decimal128ERKNSt6stringE"></span><span id="arrow::Decimal128::Decimal128__ssCR"></span><span class="target" id="classarrow_1_1_decimal128_1ab928a342ae5a879b692f1337a45a111c"></span><span class="k"><span class="pre">explicit</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Decimal128</span></span></span><span class="sig-paren">(</span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">string</span></span><span class="w"> </span><span class="p"><span class="pre">&amp;</span></span><span class="n sig-param"><span class="pre">value</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow10Decimal12810Decimal128ERKNSt6stringE" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Parse the number from a base 10 string representation. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow10Decimal12810Decimal128Ev">
 <span id="_CPPv3N5arrow10Decimal12810Decimal128Ev"></span><span id="_CPPv2N5arrow10Decimal12810Decimal128Ev"></span><span id="arrow::Decimal128::Decimal128CE"></span><span class="target" id="classarrow_1_1_decimal128_1abb83a71038252991eb902634bd7aec7e"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><span class="k"><span class="pre">constexpr</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Decimal128</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">noexcept</span></span><a class="headerlink" href="#_CPPv4N5arrow10Decimal12810Decimal128Ev" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Empty constructor creates a <a class="reference internal" href="#classarrow_1_1_decimal128"><span class="std std-ref">Decimal128</span></a> with a value of 0. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4NK5arrow10Decimal1286DivideERK10Decimal128">
 <span id="_CPPv3NK5arrow10Decimal1286DivideERK10Decimal128"></span><span id="_CPPv2NK5arrow10Decimal1286DivideERK10Decimal128"></span><span id="arrow::Decimal128::Divide__Decimal128CRC"></span><span class="target" id="classarrow_1_1_decimal128_1abb1b84dbc516ce7f0d15aee3d310105d"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre">&lt;</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">pair</span></span><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4N5arrow10Decimal128E" title="arrow::Decimal128"><span class="n"><span class="pre">Decimal128</span></span></a><span class="p"><span class="pre">,</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4N5arrow10Decimal128E" title="arrow::Decimal128"><span class="n"><span class="pre">Decimal128</span></span></a><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">&gt;</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Divide</span></span></span><span class="sig-paren">(</span><span class="k"><span class="pre">const</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4N5arrow10Decimal128E" title="arrow::Decimal128"><span class="n"><span class="pre">Decimal128</span></span></a><span class="w"> </span><span class="p"><span class="pre">&amp;</span></span><span class="n sig-param"><span class="pre">divisor</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow10Decimal1286DivideERK10Decimal128" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Divide this number by right and return the result. </p>
 <p>This operation is not destructive. The answer rounds to zero. Signs work like: 21 / 5 -&gt; 4, 1 -21 / 5 -&gt; -4, -1 21 / -5 -&gt; -4, 1 -21 / -5 -&gt; 4, -1 </p>
 <dl class="field-list simple">
 <dt class="field-odd">Parameters</dt>
 <dd class="field-odd"><p><strong>divisor</strong> – <strong>[in]</strong> the number to divide by </p>
 </dd>
 <dt class="field-even">Returns</dt>
 <dd class="field-even"><p>the pair of the quotient and the remainder </p>
 </dd>
 </dl>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4NK5arrow10Decimal1288ToStringE7int32_t">
 <span id="_CPPv3NK5arrow10Decimal1288ToStringE7int32_t"></span><span id="_CPPv2NK5arrow10Decimal1288ToStringE7int32_t"></span><span id="arrow::Decimal128::ToString__int32_tC"></span><span class="target" id="classarrow_1_1_decimal128_1a56bb4cf54b15750edc8154887b61a1b3"></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">string</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">ToString</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">scale</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow10Decimal1288ToStringE7int32_t" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Convert the <a class="reference internal" href="#classarrow_1_1_decimal128"><span class="std std-ref">Decimal128</span></a> value to a base 10 decimal string with the given scale. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4NK5arrow10Decimal12815ToIntegerStringEv">
 <span id="_CPPv3NK5arrow10Decimal12815ToIntegerStringEv"></span><span id="_CPPv2NK5arrow10Decimal12815ToIntegerStringEv"></span><span id="arrow::Decimal128::ToIntegerStringC"></span><span class="target" id="classarrow_1_1_decimal128_1a94a797c03eefbd9bb00adbfd64aaffd2"></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">string</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">ToIntegerString</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow10Decimal12815ToIntegerStringEv" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Convert the value to an integer string. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4NK5arrow10Decimal128cv7int64_tEv">
 <span id="_CPPv3NK5arrow10Decimal128cv7int64_tEv"></span><span id="_CPPv2NK5arrow10Decimal128cv7int64_tEv"></span><span id="arrow::Decimal128::castto-int64_t-operatorC"></span><span class="target" id="classarrow_1_1_decimal128_1a225da107a00727ed90e0f6db24a0a263"></span><span class="k"><span class="pre">explicit</span></span><span class="w"> </span><span class="sig-name descname"><span class="k"><span class="pre">operator</span></span><span class="w"> </span><span class="n"><span class="pre">int64_t</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow10Decimal128cv7int64_tEv" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Cast this value to an int64_t. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4NK5arrow10Decimal1287RescaleE7int32_t7int32_t">
 <span id="_CPPv3NK5arrow10Decimal1287RescaleE7int32_t7int32_t"></span><span id="_CPPv2NK5arrow10Decimal1287RescaleE7int32_t7int32_t"></span><span id="arrow::Decimal128::Rescale__int32_t.int32_tC"></span><span class="target" id="classarrow_1_1_decimal128_1ab28d8e0097bd055d15496338f1540f36"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4N5arrow10Decimal128E" title="arrow::Decimal128"><span class="n"><span class="pre">Decimal128</span></span></a><span class="p"><span class="pre">&gt;</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Rescale</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">original_scale</span></span>, <span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">new_scale</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow10Decimal1287RescaleE7int32_t7int32_t" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Convert <a class="reference internal" href="#classarrow_1_1_decimal128"><span class="std std-ref">Decimal128</span></a> from one scale to another. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4I00ENK5arrow10Decimal1289ToIntegerE6ResultI1TEv">
 <span id="_CPPv3I00ENK5arrow10Decimal1289ToIntegerEv"></span><span id="_CPPv2I00ENK5arrow10Decimal1289ToIntegerEv"></span><span class="k"><span class="pre">template</span></span><span class="p"><span class="pre">&lt;</span></span><span class="k"><span class="pre">typename</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">T</span></span></span><span class="p"><span class="pre">,</span></span><span class="w"> </span><span class="k"><span class="pre">typename</span></span><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="n"><span class="pre">internal</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">EnableIfIsOneOf</span></span><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4I00ENK5arrow10Decimal1289ToIntegerE6ResultI1TEv" title="arrow::Decimal128::ToInteger::T"><span class="n"><span class="pre">T</span></span></a><span class="p"><span class="pre">,</span></span><span class="w"> </span><span class="n"><span class="pre">int32_t</span></span><span class="p"><span class="pre">,</span></span><span class="w"> </span><span class="n"><span class="pre">int64_t</span></span><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_decimal128_1af0a111d3d7bfa35bd5edd6232be7ff85"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4I00ENK5arrow10Decimal1289ToIntegerE6ResultI1TEv" title="arrow::Decimal128::ToInteger::T"><span class="n"><span class="pre">T</span></span></a><span class="p"><span class="pre">&gt;</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">ToInteger</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4I00ENK5arrow10Decimal1289ToIntegerE6ResultI1TEv" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Convert to a signed integer. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4I00ENK5arrow10Decimal1289ToIntegerE6StatusP1T">
 <span id="_CPPv3I00ENK5arrow10Decimal1289ToIntegerEP1T"></span><span id="_CPPv2I00ENK5arrow10Decimal1289ToIntegerEP1T"></span><span class="k"><span class="pre">template</span></span><span class="p"><span class="pre">&lt;</span></span><span class="k"><span class="pre">typename</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">T</span></span></span><span class="p"><span class="pre">,</span></span><span class="w"> </span><span class="k"><span class="pre">typename</span></span><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="n"><span class="pre">internal</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">EnableIfIsOneOf</span></span><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4I00ENK5arrow10Decimal1289ToIntegerE6StatusP1T" title="arrow::Decimal128::ToInteger::T"><span class="n"><span class="pre">T</span></span></a><span class="p"><span class="pre">,</span></span><span class="w"> </span><span class="n"><span class="pre">int32_t</span></span><span class="p"><span class="pre">,</span></span><span class="w"> </span><span class="n"><span class="pre">int64_t</span></span><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_decimal128_1a6aaec9afc594aefd8d69a560ec79da9c"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">ToInteger</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4I00ENK5arrow10Decimal1289ToIntegerE6StatusP1T" title="arrow::Decimal128::ToInteger::T"><span class="n"><span class="pre">T</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">out</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4I00ENK5arrow10Decimal1289ToIntegerE6StatusP1T" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Convert to a signed integer. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4NK5arrow10Decimal1287ToFloatE7int32_t">
 <span id="_CPPv3NK5arrow10Decimal1287ToFloatE7int32_t"></span><span id="_CPPv2NK5arrow10Decimal1287ToFloatE7int32_t"></span><span id="arrow::Decimal128::ToFloat__int32_tC"></span><span class="target" id="classarrow_1_1_decimal128_1a6fc1768f7def01cd6956b2de06ec536e"></span><span class="kt"><span class="pre">float</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">ToFloat</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">scale</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow10Decimal1287ToFloatE7int32_t" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Convert to a floating-point number (scaled) </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4NK5arrow10Decimal1288ToDoubleE7int32_t">
 <span id="_CPPv3NK5arrow10Decimal1288ToDoubleE7int32_t"></span><span id="_CPPv2NK5arrow10Decimal1288ToDoubleE7int32_t"></span><span id="arrow::Decimal128::ToDouble__int32_tC"></span><span class="target" id="classarrow_1_1_decimal128_1a6873f037449dd48bee9f3009c036d8df"></span><span class="kt"><span class="pre">double</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">ToDouble</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">scale</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow10Decimal1288ToDoubleE7int32_t" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Convert to a floating-point number (scaled) </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4I0ENK5arrow10Decimal1286ToRealE1T7int32_t">
 <span id="_CPPv3I0ENK5arrow10Decimal1286ToRealE7int32_t"></span><span id="_CPPv2I0ENK5arrow10Decimal1286ToRealE7int32_t"></span><span class="k"><span class="pre">template</span></span><span class="p"><span class="pre">&lt;</span></span><span class="k"><span class="pre">typename</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">T</span></span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_decimal128_1a562d2898f6e4ca27b297d2dbf2e92247"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4I0ENK5arrow10Decimal1286ToRealE1T7int32_t" title="arrow::Decimal128::ToReal::T"><span class="n"><span class="pre">T</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">ToReal</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">scale</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4I0ENK5arrow10Decimal1286ToRealE1T7int32_t" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Convert to a floating-point number (scaled) </p>
 </dd></dl>

 </div>
 <div class="breathe-sectiondef docutils container">
 <p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-static-functions">Public Static Functions</p>
 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow10Decimal12810FromStringERKN4util11string_viewEP10Decimal128P7int32_tP7int32_t">
 <span id="_CPPv3N5arrow10Decimal12810FromStringERKN4util11string_viewEP10Decimal128P7int32_tP7int32_t"></span><span id="_CPPv2N5arrow10Decimal12810FromStringERKN4util11string_viewEP10Decimal128P7int32_tP7int32_t"></span><span id="arrow::Decimal128::FromString__util::string_viewCR.Decimal128P.int32_tP.int32_tP"></span><span class="target" id="classarrow_1_1_decimal128_1ac74be6199da3f79eafc68c34900dc452"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">FromString</span></span></span><span class="sig-paren">(</span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="n"><span class="pre">util</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">string_view</span></span><span class="w"> </span><span class="p"><span class="pre">&amp;</span></span><span class="n sig-param"><span class="pre">s</span></span>, <a class="reference internal" href="#_CPPv4N5arrow10Decimal128E" title="arrow::Decimal128"><span class="n"><span class="pre">Decimal128</span></span></a><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">out</span></span>, <span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">precision</span></span>, <span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">scale</span></span><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="n"><span class="pre">NULLPTR</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow10Decimal12810FromStringERKN4util11string_viewEP10Decimal128P7int32_tP7int32_t" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Convert a decimal string to a <a class="reference internal" href="#classarrow_1_1_decimal128"><span class="std std-ref">Decimal128</span></a> value, optionally including precision and scale if they’re passed in and not null. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow10Decimal12813FromBigEndianEPK7uint8_t7int32_t">
 <span id="_CPPv3N5arrow10Decimal12813FromBigEndianEPK7uint8_t7int32_t"></span><span id="_CPPv2N5arrow10Decimal12813FromBigEndianEPK7uint8_t7int32_t"></span><span id="arrow::Decimal128::FromBigEndian__uint8_tCP.int32_t"></span><span class="target" id="classarrow_1_1_decimal128_1a90d3023b9590a087e7b515bc3dc447f4"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4N5arrow10Decimal128E" title="arrow::Decimal128"><span class="n"><span class="pre">Decimal128</span></span></a><span class="p"><span class="pre">&gt;</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">FromBigEndian</span></span></span><span class="sig-paren">(</span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="n"><span class="pre">uint8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">data</span></span>, <span class="n"><span class="pre">int32_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">length</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow10Decimal12813FromBigEndianEPK7uint8_t7int32_t" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Convert from a big-endian byte representation. </p>
 <p>The length must be between 1 and 16. </p>
 <dl class="field-list simple">
 <dt class="field-odd">Returns</dt>
 <dd class="field-odd"><p>error status if the length is an invalid value </p>
 </dd>
 </dl>
 </dd></dl>

 </div>
 <dl class="cpp struct">
 <dt class="sig sig-object cpp" id="_CPPv4IEN5arrow10Decimal12816ToRealConversionIdEE">
 <span id="_CPPv3IEN5arrow10Decimal12816ToRealConversionIdEE"></span><span id="_CPPv2IEN5arrow10Decimal12816ToRealConversionIdEE"></span><span class="k"><span class="pre">template</span></span><span class="p"><span class="pre">&lt;</span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="structarrow_1_1_decimal128_1_1_to_real_conversion_3_01double_01_4"></span><span class="k"><span class="pre">struct</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">ToRealConversion</span></span></span><span class="p"><span class="pre">&lt;</span></span><span class="kt"><span class="pre">double</span></span><span class="p"><span class="pre">&gt;</span></span><a class="headerlink" href="#_CPPv4IEN5arrow10Decimal12816ToRealConversionIdEE" title="Permalink to this definition">¶</a><br /></dt>
 <dd></dd></dl>

 <dl class="cpp struct">
 <dt class="sig sig-object cpp" id="_CPPv4IEN5arrow10Decimal12816ToRealConversionIfEE">
 <span id="_CPPv3IEN5arrow10Decimal12816ToRealConversionIfEE"></span><span id="_CPPv2IEN5arrow10Decimal12816ToRealConversionIfEE"></span><span class="k"><span class="pre">template</span></span><span class="p"><span class="pre">&lt;</span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="structarrow_1_1_decimal128_1_1_to_real_conversion_3_01float_01_4"></span><span class="k"><span class="pre">struct</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">ToRealConversion</span></span></span><span class="p"><span class="pre">&lt;</span></span><span class="kt"><span class="pre">float</span></span><span class="p"><span class="pre">&gt;</span></span><a class="headerlink" href="#_CPPv4IEN5arrow10Decimal12816ToRealConversionIfEE" title="Permalink to this definition">¶</a><br /></dt>
 <dd></dd></dl>

 </dd></dl>

 </div>
 <div class="section" id="abstract-sequences">
 <h2>Abstract Sequences<a class="headerlink" href="#abstract-sequences" title="Permalink to this headline">¶</a></h2>
 <dl class="cpp class">
 <dt class="sig sig-object cpp" id="_CPPv4I0EN5arrow8IteratorE">
 <span id="_CPPv3I0EN5arrow8IteratorE"></span><span id="_CPPv2I0EN5arrow8IteratorE"></span><span class="k"><span class="pre">template</span></span><span class="p"><span class="pre">&lt;</span></span><span class="k"><span class="pre">typename</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">T</span></span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_iterator"></span><span class="k"><span class="pre">class</span></span><span class="w"> </span><span class="sig-prename descclassname"><span class="n"><span class="pre">arrow</span></span><span class="p"><span class="pre">::</span></span></span><span class="sig-name descname"><span class="n"><span class="pre">Iterator</span></span></span><a class="headerlink" href="#_CPPv4I0EN5arrow8IteratorE" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>A generic <a class="reference internal" href="#classarrow_1_1_iterator"><span class="std std-ref">Iterator</span></a> that can return errors. </p>
 <div class="breathe-sectiondef docutils container">
 <p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-functions">Public Functions</p>
 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4I0EN5arrow8Iterator8IteratorE7Wrapped">
 <span id="_CPPv3I0EN5arrow8Iterator8IteratorE7Wrapped"></span><span id="_CPPv2I0EN5arrow8Iterator8IteratorE7Wrapped"></span><span class="k"><span class="pre">template</span></span><span class="p"><span class="pre">&lt;</span></span><span class="k"><span class="pre">typename</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Wrapped</span></span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_iterator_1ae8f407244068440da5baafec1e163423"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><span class="k"><span class="pre">explicit</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Iterator</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4I0EN5arrow8Iterator8IteratorE7Wrapped" title="arrow::Iterator::Iterator::Wrapped"><span class="n"><span class="pre">Wrapped</span></span></a><span class="w"> </span><span class="n sig-param"><span class="pre">has_next</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4I0EN5arrow8Iterator8IteratorE7Wrapped" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p><a class="reference internal" href="#classarrow_1_1_iterator"><span class="std std-ref">Iterator</span></a> may be constructed from any type which has a member function with signature Result&lt;T&gt; <a class="reference internal" href="#classarrow_1_1_iterator_1aa45bdd8baa769270634c8d28ca8b2623"><span class="std std-ref">Next()</span></a>; End of iterator is signalled by returning IteratorTraits&lt;T&gt;::End();. </p>
 <p>The argument is moved or copied to the heap and kept in a unique_ptr&lt;void&gt;. Only its destructor and its Next method (which are stored in function pointers) are referenced after construction.</p>
 <p>This approach is used to dodge MSVC linkage hell (ARROW-6244, ARROW-6558) when using an abstract template base class: instead of being inlined as usual for a template function the base’s virtual destructor will be exported, leading to multiple definition errors when linking to any other TU where the base is instantiated. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow8Iterator4NextEv">
 <span id="_CPPv3N5arrow8Iterator4NextEv"></span><span id="_CPPv2N5arrow8Iterator4NextEv"></span><span id="arrow::Iterator::Next"></span><span class="target" id="classarrow_1_1_iterator_1aa45bdd8baa769270634c8d28ca8b2623"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4I0EN5arrow8IteratorE" title="arrow::Iterator::T"><span class="n"><span class="pre">T</span></span></a><span class="p"><span class="pre">&gt;</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Next</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow8Iterator4NextEv" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Return the next element of the sequence, IterationTraits&lt;T&gt;::End() when the iteration is completed. </p>
 <p>Calling this on a default constructed <a class="reference internal" href="#classarrow_1_1_iterator"><span class="std std-ref">Iterator</span></a> will result in undefined behavior. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4I0EN5arrow8Iterator5VisitE6StatusRR7Visitor">
 <span id="_CPPv3I0EN5arrow8Iterator5VisitERR7Visitor"></span><span id="_CPPv2I0EN5arrow8Iterator5VisitERR7Visitor"></span><span class="k"><span class="pre">template</span></span><span class="p"><span class="pre">&lt;</span></span><span class="k"><span class="pre">typename</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Visitor</span></span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_iterator_1ad4ad044d48e8981dd542b1b9f1b97c9e"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Visit</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4I0EN5arrow8Iterator5VisitE6StatusRR7Visitor" title="arrow::Iterator::Visit::Visitor"><span class="n"><span class="pre">Visitor</span></span></a><span class="w"> </span><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">&amp;</span></span><span class="n sig-param"><span class="pre">visitor</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4I0EN5arrow8Iterator5VisitE6StatusRR7Visitor" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Pass each element of the sequence to a visitor. </p>
 <p>Will return any error status returned by the visitor, terminating iteration. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4NK5arrow8Iterator6EqualsERK8Iterator">
 <span id="_CPPv3NK5arrow8Iterator6EqualsERK8Iterator"></span><span id="_CPPv2NK5arrow8Iterator6EqualsERK8Iterator"></span><span id="arrow::Iterator::Equals__IteratorCRC"></span><span class="target" id="classarrow_1_1_iterator_1ac1d269d7e0f7751dd7fe859c4e268921"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><span class="kt"><span class="pre">bool</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Equals</span></span></span><span class="sig-paren">(</span><span class="k"><span class="pre">const</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4I0EN5arrow8IteratorE" title="arrow::Iterator"><span class="n"><span class="pre">Iterator</span></span></a><span class="w"> </span><span class="p"><span class="pre">&amp;</span></span><span class="n sig-param"><span class="pre">other</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow8Iterator6EqualsERK8Iterator" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Iterators will only compare equal if they are both null. </p>
 <p>Equality comparability is required to make an <a class="reference internal" href="#classarrow_1_1_iterator"><span class="std std-ref">Iterator</span></a> of Iterators (to check for the end condition). </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow8Iterator8ToVectorEv">
 <span id="_CPPv3N5arrow8Iterator8ToVectorEv"></span><span id="_CPPv2N5arrow8Iterator8ToVectorEv"></span><span id="arrow::Iterator::ToVector"></span><span class="target" id="classarrow_1_1_iterator_1aa82f50ff3b311668856e942633f9cb16"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre">&lt;</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">vector</span></span><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4I0EN5arrow8IteratorE" title="arrow::Iterator::T"><span class="n"><span class="pre">T</span></span></a><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">&gt;</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">ToVector</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow8Iterator8ToVectorEv" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Move every element of this iterator into a vector. </p>
 </dd></dl>

 </div>
 <dl class="cpp class">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow8Iterator13RangeIteratorE">
 <span id="_CPPv3N5arrow8Iterator13RangeIteratorE"></span><span id="_CPPv2N5arrow8Iterator13RangeIteratorE"></span><span id="arrow::Iterator::RangeIterator"></span><span class="target" id="classarrow_1_1_iterator_1_1_range_iterator"></span><span class="k"><span class="pre">class</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">RangeIterator</span></span></span><a class="headerlink" href="#_CPPv4N5arrow8Iterator13RangeIteratorE" title="Permalink to this definition">¶</a><br /></dt>
 <dd></dd></dl>

 </dd></dl>

 <dl class="cpp class">
 <dt class="sig sig-object cpp" id="_CPPv4I0EN5arrow14VectorIteratorE">
 <span id="_CPPv3I0EN5arrow14VectorIteratorE"></span><span id="_CPPv2I0EN5arrow14VectorIteratorE"></span><span class="k"><span class="pre">template</span></span><span class="p"><span class="pre">&lt;</span></span><span class="k"><span class="pre">typename</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">T</span></span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_vector_iterator"></span><span class="k"><span class="pre">class</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">VectorIterator</span></span></span><a class="headerlink" href="#_CPPv4I0EN5arrow14VectorIteratorE" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Simple iterator which yields the elements of a std::vector. </p>
 </dd></dl>

 </div>
 <div class="section" id="compression">
 <h2>Compression<a class="headerlink" href="#compression" title="Permalink to this headline">¶</a></h2>
 <dl class="cpp enum">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow11Compression4typeE">
 <span id="_CPPv3N5arrow11Compression4typeE"></span><span id="_CPPv2N5arrow11Compression4typeE"></span><span class="target" id="structarrow_1_1_compression_1a8abcec0357242c077a2905d645f2163f"></span><span class="k"><span class="pre">enum</span></span><span class="w"> </span><span class="sig-prename descclassname"><span class="n"><span class="pre">arrow</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">Compression</span></span><span class="p"><span class="pre">::</span></span></span><span class="sig-name descname"><span class="n"><span class="pre">type</span></span></span><a class="headerlink" href="#_CPPv4N5arrow11Compression4typeE" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Compression algorithm. </p>
 <p><em>Values:</em></p>
 <dl class="cpp enumerator">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow11Compression4type12UNCOMPRESSEDE">
 <span id="_CPPv3N5arrow11Compression4type12UNCOMPRESSEDE"></span><span id="_CPPv2N5arrow11Compression4type12UNCOMPRESSEDE"></span><span class="target" id="structarrow_1_1_compression_1a8abcec0357242c077a2905d645f2163faaeba5020cda7bd5be9f453fcbdba7eb9"></span><span class="k"><span class="pre">enumerator</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">UNCOMPRESSED</span></span></span><a class="headerlink" href="#_CPPv4N5arrow11Compression4type12UNCOMPRESSEDE" title="Permalink to this definition">¶</a><br /></dt>
 <dd></dd></dl>

 <dl class="cpp enumerator">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow11Compression4type6SNAPPYE">
 <span id="_CPPv3N5arrow11Compression4type6SNAPPYE"></span><span id="_CPPv2N5arrow11Compression4type6SNAPPYE"></span><span class="target" id="structarrow_1_1_compression_1a8abcec0357242c077a2905d645f2163faaa503712f544219feb56bf8b6bf1f5cc"></span><span class="k"><span class="pre">enumerator</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">SNAPPY</span></span></span><a class="headerlink" href="#_CPPv4N5arrow11Compression4type6SNAPPYE" title="Permalink to this definition">¶</a><br /></dt>
 <dd></dd></dl>

 <dl class="cpp enumerator">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow11Compression4type4GZIPE">
 <span id="_CPPv3N5arrow11Compression4type4GZIPE"></span><span id="_CPPv2N5arrow11Compression4type4GZIPE"></span><span class="target" id="structarrow_1_1_compression_1a8abcec0357242c077a2905d645f2163faebf20f6095f26f9b44ec4a3311adc993"></span><span class="k"><span class="pre">enumerator</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">GZIP</span></span></span><a class="headerlink" href="#_CPPv4N5arrow11Compression4type4GZIPE" title="Permalink to this definition">¶</a><br /></dt>
 <dd></dd></dl>

 <dl class="cpp enumerator">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow11Compression4type6BROTLIE">
 <span id="_CPPv3N5arrow11Compression4type6BROTLIE"></span><span id="_CPPv2N5arrow11Compression4type6BROTLIE"></span><span class="target" id="structarrow_1_1_compression_1a8abcec0357242c077a2905d645f2163fa467df3f4fe4344a08a311df02ae48a9d"></span><span class="k"><span class="pre">enumerator</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">BROTLI</span></span></span><a class="headerlink" href="#_CPPv4N5arrow11Compression4type6BROTLIE" title="Permalink to this definition">¶</a><br /></dt>
 <dd></dd></dl>

 <dl class="cpp enumerator">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow11Compression4type4ZSTDE">
 <span id="_CPPv3N5arrow11Compression4type4ZSTDE"></span><span id="_CPPv2N5arrow11Compression4type4ZSTDE"></span><span class="target" id="structarrow_1_1_compression_1a8abcec0357242c077a2905d645f2163fa869d6a9e3b4ea6e5cfa94dcc57a82094"></span><span class="k"><span class="pre">enumerator</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">ZSTD</span></span></span><a class="headerlink" href="#_CPPv4N5arrow11Compression4type4ZSTDE" title="Permalink to this definition">¶</a><br /></dt>
 <dd></dd></dl>

 <dl class="cpp enumerator">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow11Compression4type3LZ4E">
 <span id="_CPPv3N5arrow11Compression4type3LZ4E"></span><span id="_CPPv2N5arrow11Compression4type3LZ4E"></span><span class="target" id="structarrow_1_1_compression_1a8abcec0357242c077a2905d645f2163fa77719b2e6d6a349b947287ed1ad64f3b"></span><span class="k"><span class="pre">enumerator</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">LZ4</span></span></span><a class="headerlink" href="#_CPPv4N5arrow11Compression4type3LZ4E" title="Permalink to this definition">¶</a><br /></dt>
 <dd></dd></dl>

 <dl class="cpp enumerator">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow11Compression4type9LZ4_FRAMEE">
 <span id="_CPPv3N5arrow11Compression4type9LZ4_FRAMEE"></span><span id="_CPPv2N5arrow11Compression4type9LZ4_FRAMEE"></span><span class="target" id="structarrow_1_1_compression_1a8abcec0357242c077a2905d645f2163fa2643d83a0a31c3207908c231873715d8"></span><span class="k"><span class="pre">enumerator</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">LZ4_FRAME</span></span></span><a class="headerlink" href="#_CPPv4N5arrow11Compression4type9LZ4_FRAMEE" title="Permalink to this definition">¶</a><br /></dt>
 <dd></dd></dl>

 <dl class="cpp enumerator">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow11Compression4type3LZOE">
 <span id="_CPPv3N5arrow11Compression4type3LZOE"></span><span id="_CPPv2N5arrow11Compression4type3LZOE"></span><span class="target" id="structarrow_1_1_compression_1a8abcec0357242c077a2905d645f2163fa5d2d16a5cc6384782ffdda42f6ed2ba5"></span><span class="k"><span class="pre">enumerator</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">LZO</span></span></span><a class="headerlink" href="#_CPPv4N5arrow11Compression4type3LZOE" title="Permalink to this definition">¶</a><br /></dt>
 <dd></dd></dl>

 <dl class="cpp enumerator">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow11Compression4type3BZ2E">
 <span id="_CPPv3N5arrow11Compression4type3BZ2E"></span><span id="_CPPv2N5arrow11Compression4type3BZ2E"></span><span class="target" id="structarrow_1_1_compression_1a8abcec0357242c077a2905d645f2163faec918f8675685817472e7621b4d769a8"></span><span class="k"><span class="pre">enumerator</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">BZ2</span></span></span><a class="headerlink" href="#_CPPv4N5arrow11Compression4type3BZ2E" title="Permalink to this definition">¶</a><br /></dt>
 <dd></dd></dl>

 <dl class="cpp enumerator">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow11Compression4type10LZ4_HADOOPE">
 <span id="_CPPv3N5arrow11Compression4type10LZ4_HADOOPE"></span><span id="_CPPv2N5arrow11Compression4type10LZ4_HADOOPE"></span><span class="target" id="structarrow_1_1_compression_1a8abcec0357242c077a2905d645f2163fa307a0dc857b37238a066ddd9b84e5153"></span><span class="k"><span class="pre">enumerator</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">LZ4_HADOOP</span></span></span><a class="headerlink" href="#_CPPv4N5arrow11Compression4type10LZ4_HADOOPE" title="Permalink to this definition">¶</a><br /></dt>
 <dd></dd></dl>

 </dd></dl>

 <dl class="cpp class">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util5CodecE">
 <span id="_CPPv3N5arrow4util5CodecE"></span><span id="_CPPv2N5arrow4util5CodecE"></span><span id="arrow::util::Codec"></span><span class="target" id="classarrow_1_1util_1_1_codec"></span><span class="k"><span class="pre">class</span></span><span class="w"> </span><span class="sig-prename descclassname"><span class="n"><span class="pre">arrow</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">util</span></span><span class="p"><span class="pre">::</span></span></span><span class="sig-name descname"><span class="n"><span class="pre">Codec</span></span></span><a class="headerlink" href="#_CPPv4N5arrow4util5CodecE" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Compression codec. </p>
 <div class="breathe-sectiondef docutils container">
 <p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-functions">Public Functions</p>
 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util5Codec10DecompressE7int64_tPK7uint8_t7int64_tP7uint8_t">
 <span id="_CPPv3N5arrow4util5Codec10DecompressE7int64_tPK7uint8_t7int64_tP7uint8_t"></span><span id="_CPPv2N5arrow4util5Codec10DecompressE7int64_tPK7uint8_t7int64_tP7uint8_t"></span><span id="arrow::util::Codec::Decompress__int64_t.uint8_tCP.int64_t.uint8_tP"></span><span class="target" id="classarrow_1_1util_1_1_codec_1ab7dbd507ed9e2680bdbf501796fa6b85"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre">&lt;</span></span><span class="n"><span class="pre">int64_t</span></span><span class="p"><span class="pre">&gt;</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Decompress</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">input_len</span></span>, <span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="n"><span class="pre">uint8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">input</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">output_buffer_len</span></span>, <span class="n"><span class="pre">uint8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">output_buffer</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="m"><span class="pre">0</span></span><a class="headerlink" href="#_CPPv4N5arrow4util5Codec10DecompressE7int64_tPK7uint8_t7int64_tP7uint8_t" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>One-shot decompression function. </p>
 <p>output_buffer_len must be correct and therefore be obtained in advance. The actual decompressed length is returned.</p>
 <div class="admonition note">
 <p class="admonition-title">Note</p>
 <p>One-shot decompression is not always compatible with streaming compression. Depending on the codec (e.g. LZ4), different formats may be used. </p>
 </div>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util5Codec8CompressE7int64_tPK7uint8_t7int64_tP7uint8_t">
 <span id="_CPPv3N5arrow4util5Codec8CompressE7int64_tPK7uint8_t7int64_tP7uint8_t"></span><span id="_CPPv2N5arrow4util5Codec8CompressE7int64_tPK7uint8_t7int64_tP7uint8_t"></span><span id="arrow::util::Codec::Compress__int64_t.uint8_tCP.int64_t.uint8_tP"></span><span class="target" id="classarrow_1_1util_1_1_codec_1abff0ae540da681b1b3aef3b6203875ea"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre">&lt;</span></span><span class="n"><span class="pre">int64_t</span></span><span class="p"><span class="pre">&gt;</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Compress</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">input_len</span></span>, <span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="n"><span class="pre">uint8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">input</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">output_buffer_len</span></span>, <span class="n"><span class="pre">uint8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">output_buffer</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="m"><span class="pre">0</span></span><a class="headerlink" href="#_CPPv4N5arrow4util5Codec8CompressE7int64_tPK7uint8_t7int64_tP7uint8_t" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>One-shot compression function. </p>
 <p>output_buffer_len must first have been computed using MaxCompressedLen(). The actual compressed length is returned.</p>
 <div class="admonition note">
 <p class="admonition-title">Note</p>
 <p>One-shot compression is not always compatible with streaming decompression. Depending on the codec (e.g. LZ4), different formats may be used. </p>
 </div>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util5Codec14MakeCompressorEv">
 <span id="_CPPv3N5arrow4util5Codec14MakeCompressorEv"></span><span id="_CPPv2N5arrow4util5Codec14MakeCompressorEv"></span><span id="arrow::util::Codec::MakeCompressor"></span><span class="target" id="classarrow_1_1util_1_1_codec_1a41bdf6e8ba2ca61cb682dcec598524f5"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre">&lt;</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4N5arrow4util10CompressorE" title="arrow::util::Compressor"><span class="n"><span class="pre">Compressor</span></span></a><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">&gt;</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">MakeCompressor</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="m"><span class="pre">0</span></span><a class="headerlink" href="#_CPPv4N5arrow4util5Codec14MakeCompressorEv" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Create a streaming compressor instance. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util5Codec16MakeDecompressorEv">
 <span id="_CPPv3N5arrow4util5Codec16MakeDecompressorEv"></span><span id="_CPPv2N5arrow4util5Codec16MakeDecompressorEv"></span><span id="arrow::util::Codec::MakeDecompressor"></span><span class="target" id="classarrow_1_1util_1_1_codec_1afc63a883ad20293a56138f03207627cb"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre">&lt;</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">shared_ptr</span></span><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4N5arrow4util12DecompressorE" title="arrow::util::Decompressor"><span class="n"><span class="pre">Decompressor</span></span></a><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">&gt;</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">MakeDecompressor</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="m"><span class="pre">0</span></span><a class="headerlink" href="#_CPPv4N5arrow4util5Codec16MakeDecompressorEv" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Create a streaming compressor instance. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4util5Codec16compression_typeEv">
 <span id="_CPPv3NK5arrow4util5Codec16compression_typeEv"></span><span id="_CPPv2NK5arrow4util5Codec16compression_typeEv"></span><span id="arrow::util::Codec::compression_typeC"></span><span class="target" id="classarrow_1_1util_1_1_codec_1a4f4ebf00cc7788dc710a96eb5a7aea58"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><span class="n"><span class="pre">Compression</span></span><span class="p"><span class="pre">::</span></span><a class="reference internal" href="#_CPPv4N5arrow11Compression4typeE" title="arrow::Compression::type"><span class="n"><span class="pre">type</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">compression_type</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="m"><span class="pre">0</span></span><a class="headerlink" href="#_CPPv4NK5arrow4util5Codec16compression_typeEv" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>This <a class="reference internal" href="#classarrow_1_1util_1_1_codec"><span class="std std-ref">Codec</span></a>’s compression type. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4util5Codec4nameEv">
 <span id="_CPPv3NK5arrow4util5Codec4nameEv"></span><span id="_CPPv2NK5arrow4util5Codec4nameEv"></span><span id="arrow::util::Codec::nameC"></span><span class="target" id="classarrow_1_1util_1_1_codec_1a660e6be8fbd9d5be9a68519feb510bc3"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">string</span></span><span class="w"> </span><span class="p"><span class="pre">&amp;</span></span><span class="sig-name descname"><span class="n"><span class="pre">name</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow4util5Codec4nameEv" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>The name of this <a class="reference internal" href="#classarrow_1_1util_1_1_codec"><span class="std std-ref">Codec</span></a>’s compression type. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4NK5arrow4util5Codec17compression_levelEv">
 <span id="_CPPv3NK5arrow4util5Codec17compression_levelEv"></span><span id="_CPPv2NK5arrow4util5Codec17compression_levelEv"></span><span id="arrow::util::Codec::compression_levelC"></span><span class="target" id="classarrow_1_1util_1_1_codec_1ad15b0b2745515232388a5bfc21acd218"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">compression_level</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow4util5Codec17compression_levelEv" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>This <a class="reference internal" href="#classarrow_1_1util_1_1_codec"><span class="std std-ref">Codec</span></a>’s compression level, if applicable. </p>
 </dd></dl>

 </div>
 <div class="breathe-sectiondef docutils container">
 <p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-static-functions">Public Static Functions</p>
 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util5Codec26UseDefaultCompressionLevelEv">
 <span id="_CPPv3N5arrow4util5Codec26UseDefaultCompressionLevelEv"></span><span id="_CPPv2N5arrow4util5Codec26UseDefaultCompressionLevelEv"></span><span id="arrow::util::Codec::UseDefaultCompressionLevel"></span><span class="target" id="classarrow_1_1util_1_1_codec_1a456022d9eaf814cfe95c1c1f83cce895"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">UseDefaultCompressionLevel</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4util5Codec26UseDefaultCompressionLevelEv" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Return special value to indicate that a codec implementation should use its default compression level. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util5Codec16GetCodecAsStringEN11Compression4typeE">
 <span id="_CPPv3N5arrow4util5Codec16GetCodecAsStringEN11Compression4typeE"></span><span id="_CPPv2N5arrow4util5Codec16GetCodecAsStringEN11Compression4typeE"></span><span id="arrow::util::Codec::GetCodecAsString__Compression::type"></span><span class="target" id="classarrow_1_1util_1_1_codec_1af0bdb0a90d0aa53ef2d7ff42ed317c0e"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">string</span></span><span class="w"> </span><span class="p"><span class="pre">&amp;</span></span><span class="sig-name descname"><span class="n"><span class="pre">GetCodecAsString</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">Compression</span></span><span class="p"><span class="pre">::</span></span><a class="reference internal" href="#_CPPv4N5arrow11Compression4typeE" title="arrow::Compression::type"><span class="n"><span class="pre">type</span></span></a><span class="w"> </span><span class="n sig-param"><span class="pre">t</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4util5Codec16GetCodecAsStringEN11Compression4typeE" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Return a string name for compression type. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util5Codec18GetCompressionTypeERKNSt6stringE">
 <span id="_CPPv3N5arrow4util5Codec18GetCompressionTypeERKNSt6stringE"></span><span id="_CPPv2N5arrow4util5Codec18GetCompressionTypeERKNSt6stringE"></span><span id="arrow::util::Codec::GetCompressionType__ssCR"></span><span class="target" id="classarrow_1_1util_1_1_codec_1a7964eedc005cb6c8bd2e54fcca8e02d2"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre">&lt;</span></span><span class="n"><span class="pre">Compression</span></span><span class="p"><span class="pre">::</span></span><a class="reference internal" href="#_CPPv4N5arrow11Compression4typeE" title="arrow::Compression::type"><span class="n"><span class="pre">type</span></span></a><span class="p"><span class="pre">&gt;</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">GetCompressionType</span></span></span><span class="sig-paren">(</span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">string</span></span><span class="w"> </span><span class="p"><span class="pre">&amp;</span></span><span class="n sig-param"><span class="pre">name</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4util5Codec18GetCompressionTypeERKNSt6stringE" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Return compression type for name (all upper case) </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util5Codec6CreateEN11Compression4typeEi">
 <span id="_CPPv3N5arrow4util5Codec6CreateEN11Compression4typeEi"></span><span id="_CPPv2N5arrow4util5Codec6CreateEN11Compression4typeEi"></span><span id="arrow::util::Codec::Create__Compression::type.i"></span><span class="target" id="classarrow_1_1util_1_1_codec_1a0e3313f65f079569d3e6fdf53d3e9afc"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre">&lt;</span></span><span class="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">unique_ptr</span></span><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4N5arrow4util5CodecE" title="arrow::util::Codec"><span class="n"><span class="pre">Codec</span></span></a><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">&gt;</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Create</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">Compression</span></span><span class="p"><span class="pre">::</span></span><a class="reference internal" href="#_CPPv4N5arrow11Compression4typeE" title="arrow::Compression::type"><span class="n"><span class="pre">type</span></span></a><span class="w"> </span><span class="n sig-param"><span class="pre">codec</span></span>, <span class="kt"><span class="pre">int</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">compression_level</span></span><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="n"><span class="pre">kUseDefaultCompressionLevel</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4util5Codec6CreateEN11Compression4typeEi" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Create a codec for the given compression algorithm. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util5Codec11IsAvailableEN11Compression4typeE">
 <span id="_CPPv3N5arrow4util5Codec11IsAvailableEN11Compression4typeE"></span><span id="_CPPv2N5arrow4util5Codec11IsAvailableEN11Compression4typeE"></span><span id="arrow::util::Codec::IsAvailable__Compression::type"></span><span class="target" id="classarrow_1_1util_1_1_codec_1a5d8fe3845a35fb7de7879d04250b48cc"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><span class="kt"><span class="pre">bool</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">IsAvailable</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">Compression</span></span><span class="p"><span class="pre">::</span></span><a class="reference internal" href="#_CPPv4N5arrow11Compression4typeE" title="arrow::Compression::type"><span class="n"><span class="pre">type</span></span></a><span class="w"> </span><span class="n sig-param"><span class="pre">codec</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4util5Codec11IsAvailableEN11Compression4typeE" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Return true if support for indicated codec has been enabled. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util5Codec24SupportsCompressionLevelEN11Compression4typeE">
 <span id="_CPPv3N5arrow4util5Codec24SupportsCompressionLevelEN11Compression4typeE"></span><span id="_CPPv2N5arrow4util5Codec24SupportsCompressionLevelEN11Compression4typeE"></span><span id="arrow::util::Codec::SupportsCompressionLevel__Compression::type"></span><span class="target" id="classarrow_1_1util_1_1_codec_1a78c1b942bde58241e06917058450fe35"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><span class="kt"><span class="pre">bool</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">SupportsCompressionLevel</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">Compression</span></span><span class="p"><span class="pre">::</span></span><a class="reference internal" href="#_CPPv4N5arrow11Compression4typeE" title="arrow::Compression::type"><span class="n"><span class="pre">type</span></span></a><span class="w"> </span><span class="n sig-param"><span class="pre">codec</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow4util5Codec24SupportsCompressionLevelEN11Compression4typeE" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Return true if indicated codec supports setting a compression level. </p>
 </dd></dl>

 </div>
 </dd></dl>

 <dl class="cpp class">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util10CompressorE">
 <span id="_CPPv3N5arrow4util10CompressorE"></span><span id="_CPPv2N5arrow4util10CompressorE"></span><span id="arrow::util::Compressor"></span><span class="target" id="classarrow_1_1util_1_1_compressor"></span><span class="k"><span class="pre">class</span></span><span class="w"> </span><span class="sig-prename descclassname"><span class="n"><span class="pre">arrow</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">util</span></span><span class="p"><span class="pre">::</span></span></span><span class="sig-name descname"><span class="n"><span class="pre">Compressor</span></span></span><a class="headerlink" href="#_CPPv4N5arrow4util10CompressorE" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Streaming compressor interface. </p>
 <div class="breathe-sectiondef docutils container">
 <p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-functions">Public Functions</p>
 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util10Compressor8CompressE7int64_tPK7uint8_t7int64_tP7uint8_t">
 <span id="_CPPv3N5arrow4util10Compressor8CompressE7int64_tPK7uint8_t7int64_tP7uint8_t"></span><span id="_CPPv2N5arrow4util10Compressor8CompressE7int64_tPK7uint8_t7int64_tP7uint8_t"></span><span id="arrow::util::Compressor::Compress__int64_t.uint8_tCP.int64_t.uint8_tP"></span><span class="target" id="classarrow_1_1util_1_1_compressor_1a75408d53ebe4c2b104ca298e7daed529"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4N5arrow4util10Compressor14CompressResultE" title="arrow::util::Compressor::CompressResult"><span class="n"><span class="pre">CompressResult</span></span></a><span class="p"><span class="pre">&gt;</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Compress</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">input_len</span></span>, <span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="n"><span class="pre">uint8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">input</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">output_len</span></span>, <span class="n"><span class="pre">uint8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">output</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="m"><span class="pre">0</span></span><a class="headerlink" href="#_CPPv4N5arrow4util10Compressor8CompressE7int64_tPK7uint8_t7int64_tP7uint8_t" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Compress some input. </p>
 <p>If bytes_read is 0 on return, then a larger output buffer should be supplied. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util10Compressor5FlushE7int64_tP7uint8_t">
 <span id="_CPPv3N5arrow4util10Compressor5FlushE7int64_tP7uint8_t"></span><span id="_CPPv2N5arrow4util10Compressor5FlushE7int64_tP7uint8_t"></span><span id="arrow::util::Compressor::Flush__int64_t.uint8_tP"></span><span class="target" id="classarrow_1_1util_1_1_compressor_1a73371073ca21b071c1299ac204509ec1"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4N5arrow4util10Compressor11FlushResultE" title="arrow::util::Compressor::FlushResult"><span class="n"><span class="pre">FlushResult</span></span></a><span class="p"><span class="pre">&gt;</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Flush</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">output_len</span></span>, <span class="n"><span class="pre">uint8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">output</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="m"><span class="pre">0</span></span><a class="headerlink" href="#_CPPv4N5arrow4util10Compressor5FlushE7int64_tP7uint8_t" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Flush part of the compressed output. </p>
 <p>If should_retry is true on return, <a class="reference internal" href="#classarrow_1_1util_1_1_compressor_1a73371073ca21b071c1299ac204509ec1"><span class="std std-ref">Flush()</span></a> should be called again with a larger buffer. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util10Compressor3EndE7int64_tP7uint8_t">
 <span id="_CPPv3N5arrow4util10Compressor3EndE7int64_tP7uint8_t"></span><span id="_CPPv2N5arrow4util10Compressor3EndE7int64_tP7uint8_t"></span><span id="arrow::util::Compressor::End__int64_t.uint8_tP"></span><span class="target" id="classarrow_1_1util_1_1_compressor_1ab494b35881a749196dc90aefde8f3b81"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4N5arrow4util10Compressor9EndResultE" title="arrow::util::Compressor::EndResult"><span class="n"><span class="pre">EndResult</span></span></a><span class="p"><span class="pre">&gt;</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">End</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">output_len</span></span>, <span class="n"><span class="pre">uint8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">output</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="m"><span class="pre">0</span></span><a class="headerlink" href="#_CPPv4N5arrow4util10Compressor3EndE7int64_tP7uint8_t" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>End compressing, doing whatever is necessary to end the stream. </p>
 <p>If should_retry is true on return, <a class="reference internal" href="#classarrow_1_1util_1_1_compressor_1ab494b35881a749196dc90aefde8f3b81"><span class="std std-ref">End()</span></a> should be called again with a larger buffer. Otherwise, the <a class="reference internal" href="#classarrow_1_1util_1_1_compressor"><span class="std std-ref">Compressor</span></a> should not be used anymore.</p>
 <p><a class="reference internal" href="#classarrow_1_1util_1_1_compressor_1ab494b35881a749196dc90aefde8f3b81"><span class="std std-ref">End()</span></a> implies <a class="reference internal" href="#classarrow_1_1util_1_1_compressor_1a73371073ca21b071c1299ac204509ec1"><span class="std std-ref">Flush()</span></a>. </p>
 </dd></dl>

 </div>
 <dl class="cpp struct">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util10Compressor14CompressResultE">
 <span id="_CPPv3N5arrow4util10Compressor14CompressResultE"></span><span id="_CPPv2N5arrow4util10Compressor14CompressResultE"></span><span id="arrow::util::Compressor::CompressResult"></span><span class="target" id="structarrow_1_1util_1_1_compressor_1_1_compress_result"></span><span class="k"><span class="pre">struct</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">CompressResult</span></span></span><a class="headerlink" href="#_CPPv4N5arrow4util10Compressor14CompressResultE" title="Permalink to this definition">¶</a><br /></dt>
 <dd></dd></dl>

 <dl class="cpp struct">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util10Compressor9EndResultE">
 <span id="_CPPv3N5arrow4util10Compressor9EndResultE"></span><span id="_CPPv2N5arrow4util10Compressor9EndResultE"></span><span id="arrow::util::Compressor::EndResult"></span><span class="target" id="structarrow_1_1util_1_1_compressor_1_1_end_result"></span><span class="k"><span class="pre">struct</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">EndResult</span></span></span><a class="headerlink" href="#_CPPv4N5arrow4util10Compressor9EndResultE" title="Permalink to this definition">¶</a><br /></dt>
 <dd></dd></dl>

 <dl class="cpp struct">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util10Compressor11FlushResultE">
 <span id="_CPPv3N5arrow4util10Compressor11FlushResultE"></span><span id="_CPPv2N5arrow4util10Compressor11FlushResultE"></span><span id="arrow::util::Compressor::FlushResult"></span><span class="target" id="structarrow_1_1util_1_1_compressor_1_1_flush_result"></span><span class="k"><span class="pre">struct</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">FlushResult</span></span></span><a class="headerlink" href="#_CPPv4N5arrow4util10Compressor11FlushResultE" title="Permalink to this definition">¶</a><br /></dt>
 <dd></dd></dl>

 </dd></dl>

 <dl class="cpp class">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util12DecompressorE">
 <span id="_CPPv3N5arrow4util12DecompressorE"></span><span id="_CPPv2N5arrow4util12DecompressorE"></span><span id="arrow::util::Decompressor"></span><span class="target" id="classarrow_1_1util_1_1_decompressor"></span><span class="k"><span class="pre">class</span></span><span class="w"> </span><span class="sig-prename descclassname"><span class="n"><span class="pre">arrow</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">util</span></span><span class="p"><span class="pre">::</span></span></span><span class="sig-name descname"><span class="n"><span class="pre">Decompressor</span></span></span><a class="headerlink" href="#_CPPv4N5arrow4util12DecompressorE" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Streaming decompressor interface. </p>
 <div class="breathe-sectiondef docutils container">
 <p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-functions">Public Functions</p>
 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util12Decompressor10DecompressE7int64_tPK7uint8_t7int64_tP7uint8_t">
 <span id="_CPPv3N5arrow4util12Decompressor10DecompressE7int64_tPK7uint8_t7int64_tP7uint8_t"></span><span id="_CPPv2N5arrow4util12Decompressor10DecompressE7int64_tPK7uint8_t7int64_tP7uint8_t"></span><span id="arrow::util::Decompressor::Decompress__int64_t.uint8_tCP.int64_t.uint8_tP"></span><span class="target" id="classarrow_1_1util_1_1_decompressor_1ae4cd7f2634190422ce0b878638dcc483"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4N5arrow4util12Decompressor16DecompressResultE" title="arrow::util::Decompressor::DecompressResult"><span class="n"><span class="pre">DecompressResult</span></span></a><span class="p"><span class="pre">&gt;</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Decompress</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">input_len</span></span>, <span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="n"><span class="pre">uint8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">input</span></span>, <span class="n"><span class="pre">int64_t</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">output_len</span></span>, <span class="n"><span class="pre">uint8_t</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="n sig-param"><span class="pre">output</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="m"><span class="pre">0</span></span><a class="headerlink" href="#_CPPv4N5arrow4util12Decompressor10DecompressE7int64_tPK7uint8_t7int64_tP7uint8_t" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Decompress some input. </p>
 <p>If need_more_output is true on return, a larger output buffer needs to be supplied. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util12Decompressor10IsFinishedEv">
 <span id="_CPPv3N5arrow4util12Decompressor10IsFinishedEv"></span><span id="_CPPv2N5arrow4util12Decompressor10IsFinishedEv"></span><span id="arrow::util::Decompressor::IsFinished"></span><span class="target" id="classarrow_1_1util_1_1_decompressor_1a7f93814cd214bb11b6a5156d850e9e47"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><span class="kt"><span class="pre">bool</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">IsFinished</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="m"><span class="pre">0</span></span><a class="headerlink" href="#_CPPv4N5arrow4util12Decompressor10IsFinishedEv" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Return whether the compressed stream is finished. </p>
 <p>This is a heuristic. If true is returned, then it is guaranteed that the stream is finished. If false is returned, however, it may simply be that the underlying library isn’t able to provide the information. </p>
 </dd></dl>

 <dl class="cpp function">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util12Decompressor5ResetEv">
 <span id="_CPPv3N5arrow4util12Decompressor5ResetEv"></span><span id="_CPPv2N5arrow4util12Decompressor5ResetEv"></span><span id="arrow::util::Decompressor::Reset"></span><span class="target" id="classarrow_1_1util_1_1_decompressor_1a1a69d72dd9f187c60bd199712d88980f"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><a class="reference internal" href="support.html#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Reset</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="p"><span class="pre">=</span></span><span class="w"> </span><span class="m"><span class="pre">0</span></span><a class="headerlink" href="#_CPPv4N5arrow4util12Decompressor5ResetEv" title="Permalink to this definition">¶</a><br /></dt>
 <dd><p>Reinitialize decompressor, making it ready for a new compressed stream. </p>
 </dd></dl>

 </div>
 <dl class="cpp struct">
 <dt class="sig sig-object cpp" id="_CPPv4N5arrow4util12Decompressor16DecompressResultE">
 <span id="_CPPv3N5arrow4util12Decompressor16DecompressResultE"></span><span id="_CPPv2N5arrow4util12Decompressor16DecompressResultE"></span><span id="arrow::util::Decompressor::DecompressResult"></span><span class="target" id="structarrow_1_1util_1_1_decompressor_1_1_decompress_result"></span><span class="k"><span class="pre">struct</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">DecompressResult</span></span></span><a class="headerlink" href="#_CPPv4N5arrow4util12Decompressor16DecompressResultE" title="Permalink to this definition">¶</a><br /></dt>
 <dd></dd></dl>

 </dd></dl>

 </div>
 </div>


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