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<div class="section" id="programming-support">
<h1>Programming Support<a class="headerlink" href="#programming-support" title="Permalink to this headline"></a></h1>
<div class="section" id="general-information">
<h2>General information<a class="headerlink" href="#general-information" title="Permalink to this headline"></a></h2>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4N5arrow12GetBuildInfoEv">
<span id="_CPPv3N5arrow12GetBuildInfoEv"></span><span id="_CPPv2N5arrow12GetBuildInfoEv"></span><span id="arrow::GetBuildInfo"></span><span class="target" id="namespacearrow_1ae00fc3d5d06cc6687ebbe00e272c9504"></span><span class="k"><span class="pre">const</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4N5arrow9BuildInfoE" title="arrow::BuildInfo"><span class="n"><span class="pre">BuildInfo</span></span></a><span class="w"> </span><span class="p"><span class="pre">&amp;</span></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">GetBuildInfo</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow12GetBuildInfoEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Get runtime build info. </p>
<p>The returned values correspond to exact loaded version of the Arrow library, rather than the values frozen at application compile-time through the <code class="docutils literal notranslate"><span class="pre">ARROW_*</span></code> preprocessor definitions. </p>
</dd></dl>
<dl class="cpp struct">
<dt class="sig sig-object cpp" id="_CPPv4N5arrow9BuildInfoE">
<span id="_CPPv3N5arrow9BuildInfoE"></span><span id="_CPPv2N5arrow9BuildInfoE"></span><span id="arrow::BuildInfo"></span><span class="target" id="structarrow_1_1_build_info"></span><span class="k"><span class="pre">struct</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">BuildInfo</span></span></span><a class="headerlink" href="#_CPPv4N5arrow9BuildInfoE" title="Permalink to this definition"></a><br /></dt>
<dd><div class="breathe-sectiondef docutils container">
<p class="breathe-sectiondef-title rubric" id="breathe-section-title-public-members">Public Members</p>
<dl class="cpp var">
<dt class="sig sig-object cpp" id="_CPPv4N5arrow9BuildInfo7versionE">
<span id="_CPPv3N5arrow9BuildInfo7versionE"></span><span id="_CPPv2N5arrow9BuildInfo7versionE"></span><span id="arrow::BuildInfo::version__i"></span><span class="target" id="structarrow_1_1_build_info_1a76a64ddc65ebdf8aa0e75df3231b96fe"></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">version</span></span></span><a class="headerlink" href="#_CPPv4N5arrow9BuildInfo7versionE" title="Permalink to this definition"></a><br /></dt>
<dd><p>The packed version number, e.g. 1002003 (decimal) for Arrow 1.2.3. </p>
</dd></dl>
<dl class="cpp var">
<dt class="sig sig-object cpp" id="_CPPv4N5arrow9BuildInfo13version_majorE">
<span id="_CPPv3N5arrow9BuildInfo13version_majorE"></span><span id="_CPPv2N5arrow9BuildInfo13version_majorE"></span><span id="arrow::BuildInfo::version_major__i"></span><span class="target" id="structarrow_1_1_build_info_1acdbdbe5cda1698b5092ba72725dc15c9"></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">version_major</span></span></span><a class="headerlink" href="#_CPPv4N5arrow9BuildInfo13version_majorE" title="Permalink to this definition"></a><br /></dt>
<dd><p>The “major” version number, e.g. 1 for Arrow 1.2.3. </p>
</dd></dl>
<dl class="cpp var">
<dt class="sig sig-object cpp" id="_CPPv4N5arrow9BuildInfo13version_minorE">
<span id="_CPPv3N5arrow9BuildInfo13version_minorE"></span><span id="_CPPv2N5arrow9BuildInfo13version_minorE"></span><span id="arrow::BuildInfo::version_minor__i"></span><span class="target" id="structarrow_1_1_build_info_1a90b60c5da068e46b894c33fe6a3d5393"></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">version_minor</span></span></span><a class="headerlink" href="#_CPPv4N5arrow9BuildInfo13version_minorE" title="Permalink to this definition"></a><br /></dt>
<dd><p>The “minor” version number, e.g. 2 for Arrow 1.2.3. </p>
</dd></dl>
<dl class="cpp var">
<dt class="sig sig-object cpp" id="_CPPv4N5arrow9BuildInfo13version_patchE">
<span id="_CPPv3N5arrow9BuildInfo13version_patchE"></span><span id="_CPPv2N5arrow9BuildInfo13version_patchE"></span><span id="arrow::BuildInfo::version_patch__i"></span><span class="target" id="structarrow_1_1_build_info_1a8ac9a8f8084d4c99123e5677ff8d2539"></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">version_patch</span></span></span><a class="headerlink" href="#_CPPv4N5arrow9BuildInfo13version_patchE" title="Permalink to this definition"></a><br /></dt>
<dd><p>The “patch” version number, e.g. 3 for Arrow 1.2.3. </p>
</dd></dl>
<dl class="cpp var">
<dt class="sig sig-object cpp" id="_CPPv4N5arrow9BuildInfo14version_stringE">
<span id="_CPPv3N5arrow9BuildInfo14version_stringE"></span><span id="_CPPv2N5arrow9BuildInfo14version_stringE"></span><span id="arrow::BuildInfo::version_string__ss"></span><span class="target" id="structarrow_1_1_build_info_1a80fabe9ea2ced3a607d06faf6d1db273"></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">version_string</span></span></span><a class="headerlink" href="#_CPPv4N5arrow9BuildInfo14version_stringE" title="Permalink to this definition"></a><br /></dt>
<dd><p>The version string, e.g. “1.2.3”. </p>
</dd></dl>
</div>
</dd></dl>
</div>
<div class="section" id="error-return-and-reporting">
<h2>Error return and reporting<a class="headerlink" href="#error-return-and-reporting" title="Permalink to this headline"></a></h2>
<dl class="cpp class">
<dt class="sig sig-object cpp" id="_CPPv4N5arrow6StatusE">
<span id="_CPPv3N5arrow6StatusE"></span><span id="_CPPv2N5arrow6StatusE"></span><span id="arrow::Status"></span><span class="target" id="classarrow_1_1_status"></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">Status</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">util</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">EqualityComparable</span></span><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="p"><span class="pre">&gt;</span></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">util</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">ToStringOstreamable</span></span><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="p"><span class="pre">&gt;</span></span><a class="headerlink" href="#_CPPv4N5arrow6StatusE" title="Permalink to this definition"></a><br /></dt>
<dd><p><a class="reference internal" href="#classarrow_1_1_status"><span class="std std-ref">Status</span></a> outcome object (success or error) </p>
<p>The <a class="reference internal" href="#classarrow_1_1_status"><span class="std std-ref">Status</span></a> object is an object holding the outcome of an operation. The outcome is represented as a StatusCode, either success (StatusCode::OK) or an error (any other of the StatusCode enumeration values).</p>
<p>Additionally, if an error occurred, a specific error message is generally attached. </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="_CPPv4N5arrow6Status6StatusE10StatusCodeNSt6stringENSt10shared_ptrI12StatusDetailEE">
<span id="_CPPv3N5arrow6Status6StatusE10StatusCodeNSt6stringENSt10shared_ptrI12StatusDetailEE"></span><span id="_CPPv2N5arrow6Status6StatusE10StatusCodeNSt6stringENSt10shared_ptrI12StatusDetailEE"></span><span id="arrow::Status::Status__StatusCode.ss.std::shared_ptr:StatusDetail:"></span><span class="target" id="classarrow_1_1_status_1abf7027d47acce62267954748572c30e2"></span><span class="sig-name descname"><span class="n"><span class="pre">Status</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">StatusCode</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">code</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">string</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">msg</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="#_CPPv4N5arrow12StatusDetailE" title="arrow::StatusDetail"><span class="n"><span class="pre">StatusDetail</span></span></a><span class="p"><span class="pre">&gt;</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">detail</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow6Status6StatusE10StatusCodeNSt6stringENSt10shared_ptrI12StatusDetailEE" title="Permalink to this definition"></a><br /></dt>
<dd><p>Pluggable constructor for use by sub-systems. detail cannot be null. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow6Status2okEv">
<span id="_CPPv3NK5arrow6Status2okEv"></span><span id="_CPPv2NK5arrow6Status2okEv"></span><span id="arrow::Status::okC"></span><span class="target" id="classarrow_1_1_status_1a2240d82ac632c582efc070af2fe9a5ec"></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">ok</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="#_CPPv4NK5arrow6Status2okEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return true iff the status indicates success. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow6Status13IsOutOfMemoryEv">
<span id="_CPPv3NK5arrow6Status13IsOutOfMemoryEv"></span><span id="_CPPv2NK5arrow6Status13IsOutOfMemoryEv"></span><span id="arrow::Status::IsOutOfMemoryC"></span><span class="target" id="classarrow_1_1_status_1aa68adbba5eb1af6a3bbea812e932202e"></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">IsOutOfMemory</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="#_CPPv4NK5arrow6Status13IsOutOfMemoryEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return true iff the status indicates an out-of-memory error. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow6Status10IsKeyErrorEv">
<span id="_CPPv3NK5arrow6Status10IsKeyErrorEv"></span><span id="_CPPv2NK5arrow6Status10IsKeyErrorEv"></span><span id="arrow::Status::IsKeyErrorC"></span><span class="target" id="classarrow_1_1_status_1aecaae760cdbe63349166c5415c7d6405"></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">IsKeyError</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="#_CPPv4NK5arrow6Status10IsKeyErrorEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return true iff the status indicates a key lookup error. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow6Status9IsInvalidEv">
<span id="_CPPv3NK5arrow6Status9IsInvalidEv"></span><span id="_CPPv2NK5arrow6Status9IsInvalidEv"></span><span id="arrow::Status::IsInvalidC"></span><span class="target" id="classarrow_1_1_status_1a1473b7bf14ad50feab36b514b5af6484"></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">IsInvalid</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="#_CPPv4NK5arrow6Status9IsInvalidEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return true iff the status indicates invalid data. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow6Status11IsCancelledEv">
<span id="_CPPv3NK5arrow6Status11IsCancelledEv"></span><span id="_CPPv2NK5arrow6Status11IsCancelledEv"></span><span id="arrow::Status::IsCancelledC"></span><span class="target" id="classarrow_1_1_status_1aa8e6c47abf1f5895b305249faf2e3e0c"></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">IsCancelled</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="#_CPPv4NK5arrow6Status11IsCancelledEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return true iff the status indicates a cancelled operation. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow6Status9IsIOErrorEv">
<span id="_CPPv3NK5arrow6Status9IsIOErrorEv"></span><span id="_CPPv2NK5arrow6Status9IsIOErrorEv"></span><span id="arrow::Status::IsIOErrorC"></span><span class="target" id="classarrow_1_1_status_1a028972b0c7f807ebfabfb00b692c489e"></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">IsIOError</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="#_CPPv4NK5arrow6Status9IsIOErrorEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return true iff the status indicates an IO-related failure. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow6Status15IsCapacityErrorEv">
<span id="_CPPv3NK5arrow6Status15IsCapacityErrorEv"></span><span id="_CPPv2NK5arrow6Status15IsCapacityErrorEv"></span><span id="arrow::Status::IsCapacityErrorC"></span><span class="target" id="classarrow_1_1_status_1ae8ee3e230331723c3d9d554ca68c4f9f"></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">IsCapacityError</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="#_CPPv4NK5arrow6Status15IsCapacityErrorEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return true iff the status indicates a container reaching capacity limits. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow6Status12IsIndexErrorEv">
<span id="_CPPv3NK5arrow6Status12IsIndexErrorEv"></span><span id="_CPPv2NK5arrow6Status12IsIndexErrorEv"></span><span id="arrow::Status::IsIndexErrorC"></span><span class="target" id="classarrow_1_1_status_1a782070e6182794e02278c6929b2d5359"></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">IsIndexError</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="#_CPPv4NK5arrow6Status12IsIndexErrorEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return true iff the status indicates an out of bounds index. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow6Status11IsTypeErrorEv">
<span id="_CPPv3NK5arrow6Status11IsTypeErrorEv"></span><span id="_CPPv2NK5arrow6Status11IsTypeErrorEv"></span><span id="arrow::Status::IsTypeErrorC"></span><span class="target" id="classarrow_1_1_status_1aa508d180a205b08be3438f0b13209df5"></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">IsTypeError</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="#_CPPv4NK5arrow6Status11IsTypeErrorEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return true iff the status indicates a type error. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow6Status14IsUnknownErrorEv">
<span id="_CPPv3NK5arrow6Status14IsUnknownErrorEv"></span><span id="_CPPv2NK5arrow6Status14IsUnknownErrorEv"></span><span id="arrow::Status::IsUnknownErrorC"></span><span class="target" id="classarrow_1_1_status_1a712fe45f53af49719298b6a69ca69fdd"></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">IsUnknownError</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="#_CPPv4NK5arrow6Status14IsUnknownErrorEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return true iff the status indicates an unknown error. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow6Status16IsNotImplementedEv">
<span id="_CPPv3NK5arrow6Status16IsNotImplementedEv"></span><span id="_CPPv2NK5arrow6Status16IsNotImplementedEv"></span><span id="arrow::Status::IsNotImplementedC"></span><span class="target" id="classarrow_1_1_status_1a772915ccb2d41372bf989da001195bcd"></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">IsNotImplemented</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="#_CPPv4NK5arrow6Status16IsNotImplementedEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return true iff the status indicates an unimplemented operation. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow6Status20IsSerializationErrorEv">
<span id="_CPPv3NK5arrow6Status20IsSerializationErrorEv"></span><span id="_CPPv2NK5arrow6Status20IsSerializationErrorEv"></span><span id="arrow::Status::IsSerializationErrorC"></span><span class="target" id="classarrow_1_1_status_1aff56e112e3004e6f9f79a5e9e9d35d2a"></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">IsSerializationError</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="#_CPPv4NK5arrow6Status20IsSerializationErrorEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return true iff the status indicates a (de)serialization failure. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow6Status8IsRErrorEv">
<span id="_CPPv3NK5arrow6Status8IsRErrorEv"></span><span id="_CPPv2NK5arrow6Status8IsRErrorEv"></span><span id="arrow::Status::IsRErrorC"></span><span class="target" id="classarrow_1_1_status_1aa94c1d729d9a98fadc5ec50cbdaa9887"></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">IsRError</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="#_CPPv4NK5arrow6Status8IsRErrorEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return true iff the status indicates a R-originated error. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow6Status8ToStringEv">
<span id="_CPPv3NK5arrow6Status8ToStringEv"></span><span id="_CPPv2NK5arrow6Status8ToStringEv"></span><span id="arrow::Status::ToStringC"></span><span class="target" id="classarrow_1_1_status_1a5bccb726dc7a1989b9158b46bfb309b6"></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="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow6Status8ToStringEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return a string representation of this status suitable for printing. </p>
<p>The string “OK” is returned for success. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow6Status12CodeAsStringEv">
<span id="_CPPv3NK5arrow6Status12CodeAsStringEv"></span><span id="_CPPv2NK5arrow6Status12CodeAsStringEv"></span><span id="arrow::Status::CodeAsStringC"></span><span class="target" id="classarrow_1_1_status_1a4b39130dbef68d6b20ee9baa41c76504"></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">CodeAsString</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="#_CPPv4NK5arrow6Status12CodeAsStringEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return a string representation of the status code, without the message text or POSIX code information. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow6Status4codeEv">
<span id="_CPPv3NK5arrow6Status4codeEv"></span><span id="_CPPv2NK5arrow6Status4codeEv"></span><span id="arrow::Status::codeC"></span><span class="target" id="classarrow_1_1_status_1a0006d966f821af5194a087806b121e80"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><span class="n"><span class="pre">StatusCode</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">code</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="#_CPPv4NK5arrow6Status4codeEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return the StatusCode value attached to this status. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow6Status7messageEv">
<span id="_CPPv3NK5arrow6Status7messageEv"></span><span id="_CPPv2NK5arrow6Status7messageEv"></span><span id="arrow::Status::messageC"></span><span class="target" id="classarrow_1_1_status_1ad67b92854b41e7f0c5951b114b195284"></span><span class="k"><span class="pre">inline</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="sig-name descname"><span class="n"><span class="pre">message</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="#_CPPv4NK5arrow6Status7messageEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return the specific error message attached to this status. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow6Status10WithDetailENSt10shared_ptrI12StatusDetailEE">
<span id="_CPPv3NK5arrow6Status10WithDetailENSt10shared_ptrI12StatusDetailEE"></span><span id="_CPPv2NK5arrow6Status10WithDetailENSt10shared_ptrI12StatusDetailEE"></span><span id="arrow::Status::WithDetail__std::shared_ptr:StatusDetail:C"></span><span class="target" id="classarrow_1_1_status_1a2daf52c50d15eb62bedbe6e8dbc18fff"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_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">WithDetail</span></span></span><span class="sig-paren">(</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="#_CPPv4N5arrow12StatusDetailE" title="arrow::StatusDetail"><span class="n"><span class="pre">StatusDetail</span></span></a><span class="p"><span class="pre">&gt;</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">new_detail</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4NK5arrow6Status10WithDetailENSt10shared_ptrI12StatusDetailEE" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return a new <a class="reference internal" href="#classarrow_1_1_status"><span class="std std-ref">Status</span></a> copying the existing status, but updating with the existing detail. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4IDpENK5arrow6Status11WithMessageE6StatusDpRR4Args">
<span id="_CPPv3IDpENK5arrow6Status11WithMessageEDpRR4Args"></span><span id="_CPPv2IDpENK5arrow6Status11WithMessageEDpRR4Args"></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="p"><span class="pre">...</span></span><span class="sig-name descname"><span class="n"><span class="pre">Args</span></span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_status_1a5d18488120c4f0ae9ffeeb771106a66b"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_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">WithMessage</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4IDpENK5arrow6Status11WithMessageE6StatusDpRR4Args" title="arrow::Status::WithMessage::Args"><span class="n"><span class="pre">Args</span></span></a><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">...</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">args</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">const</span></span><a class="headerlink" href="#_CPPv4IDpENK5arrow6Status11WithMessageE6StatusDpRR4Args" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return a new <a class="reference internal" href="#classarrow_1_1_status"><span class="std std-ref">Status</span></a> with changed message, copying the existing status code and detail. </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="_CPPv4N5arrow6Status2OKEv">
<span id="_CPPv3N5arrow6Status2OKEv"></span><span id="_CPPv2N5arrow6Status2OKEv"></span><span id="arrow::Status::OK"></span><span class="target" id="classarrow_1_1_status_1a5c0b0031db6eeec3dcc70485d24cfe03"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_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">OK</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow6Status2OKEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return a success status. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4IDpEN5arrow6Status11OutOfMemoryE6StatusDpRR4Args">
<span id="_CPPv3IDpEN5arrow6Status11OutOfMemoryEDpRR4Args"></span><span id="_CPPv2IDpEN5arrow6Status11OutOfMemoryEDpRR4Args"></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="p"><span class="pre">...</span></span><span class="sig-name descname"><span class="n"><span class="pre">Args</span></span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_status_1ae39cb87196acb83e4eb921cf729248e3"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_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">OutOfMemory</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4IDpEN5arrow6Status11OutOfMemoryE6StatusDpRR4Args" title="arrow::Status::OutOfMemory::Args"><span class="n"><span class="pre">Args</span></span></a><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">...</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">args</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4IDpEN5arrow6Status11OutOfMemoryE6StatusDpRR4Args" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return an error status for out-of-memory conditions. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4IDpEN5arrow6Status8KeyErrorE6StatusDpRR4Args">
<span id="_CPPv3IDpEN5arrow6Status8KeyErrorEDpRR4Args"></span><span id="_CPPv2IDpEN5arrow6Status8KeyErrorEDpRR4Args"></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="p"><span class="pre">...</span></span><span class="sig-name descname"><span class="n"><span class="pre">Args</span></span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_status_1a9cb12a31b919deae25d1089da1cf21c7"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_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">KeyError</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4IDpEN5arrow6Status8KeyErrorE6StatusDpRR4Args" title="arrow::Status::KeyError::Args"><span class="n"><span class="pre">Args</span></span></a><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">...</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">args</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4IDpEN5arrow6Status8KeyErrorE6StatusDpRR4Args" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return an error status for failed key lookups (e.g. column name in a table) </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4IDpEN5arrow6Status9TypeErrorE6StatusDpRR4Args">
<span id="_CPPv3IDpEN5arrow6Status9TypeErrorEDpRR4Args"></span><span id="_CPPv2IDpEN5arrow6Status9TypeErrorEDpRR4Args"></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="p"><span class="pre">...</span></span><span class="sig-name descname"><span class="n"><span class="pre">Args</span></span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_status_1a0ff96a9163346d8af8abe40e9809a8ba"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_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">TypeError</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4IDpEN5arrow6Status9TypeErrorE6StatusDpRR4Args" title="arrow::Status::TypeError::Args"><span class="n"><span class="pre">Args</span></span></a><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">...</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">args</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4IDpEN5arrow6Status9TypeErrorE6StatusDpRR4Args" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return an error status for type errors (such as mismatching data types) </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4IDpEN5arrow6Status12UnknownErrorE6StatusDpRR4Args">
<span id="_CPPv3IDpEN5arrow6Status12UnknownErrorEDpRR4Args"></span><span id="_CPPv2IDpEN5arrow6Status12UnknownErrorEDpRR4Args"></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="p"><span class="pre">...</span></span><span class="sig-name descname"><span class="n"><span class="pre">Args</span></span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_status_1a40dfa10f3910d85b4a8d9d5c2c043feb"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_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">UnknownError</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4IDpEN5arrow6Status12UnknownErrorE6StatusDpRR4Args" title="arrow::Status::UnknownError::Args"><span class="n"><span class="pre">Args</span></span></a><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">...</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">args</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4IDpEN5arrow6Status12UnknownErrorE6StatusDpRR4Args" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return an error status for unknown errors. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4IDpEN5arrow6Status14NotImplementedE6StatusDpRR4Args">
<span id="_CPPv3IDpEN5arrow6Status14NotImplementedEDpRR4Args"></span><span id="_CPPv2IDpEN5arrow6Status14NotImplementedEDpRR4Args"></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="p"><span class="pre">...</span></span><span class="sig-name descname"><span class="n"><span class="pre">Args</span></span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_status_1ae63ddaaa7db5edef4e75a26b693351a1"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_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">NotImplemented</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4IDpEN5arrow6Status14NotImplementedE6StatusDpRR4Args" title="arrow::Status::NotImplemented::Args"><span class="n"><span class="pre">Args</span></span></a><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">...</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">args</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4IDpEN5arrow6Status14NotImplementedE6StatusDpRR4Args" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return an error status when an operation or a combination of operation and data types is unimplemented. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4IDpEN5arrow6Status7InvalidE6StatusDpRR4Args">
<span id="_CPPv3IDpEN5arrow6Status7InvalidEDpRR4Args"></span><span id="_CPPv2IDpEN5arrow6Status7InvalidEDpRR4Args"></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="p"><span class="pre">...</span></span><span class="sig-name descname"><span class="n"><span class="pre">Args</span></span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_status_1aa388393c060f3b44316876a630190576"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_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">Invalid</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4IDpEN5arrow6Status7InvalidE6StatusDpRR4Args" title="arrow::Status::Invalid::Args"><span class="n"><span class="pre">Args</span></span></a><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">...</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">args</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4IDpEN5arrow6Status7InvalidE6StatusDpRR4Args" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return an error status for invalid data (for example a string that fails parsing) </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4IDpEN5arrow6Status9CancelledE6StatusDpRR4Args">
<span id="_CPPv3IDpEN5arrow6Status9CancelledEDpRR4Args"></span><span id="_CPPv2IDpEN5arrow6Status9CancelledEDpRR4Args"></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="p"><span class="pre">...</span></span><span class="sig-name descname"><span class="n"><span class="pre">Args</span></span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_status_1adac6627691bfe67a10b50890a4715a8e"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_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">Cancelled</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4IDpEN5arrow6Status9CancelledE6StatusDpRR4Args" title="arrow::Status::Cancelled::Args"><span class="n"><span class="pre">Args</span></span></a><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">...</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">args</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4IDpEN5arrow6Status9CancelledE6StatusDpRR4Args" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return an error status for cancelled operation. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4IDpEN5arrow6Status10IndexErrorE6StatusDpRR4Args">
<span id="_CPPv3IDpEN5arrow6Status10IndexErrorEDpRR4Args"></span><span id="_CPPv2IDpEN5arrow6Status10IndexErrorEDpRR4Args"></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="p"><span class="pre">...</span></span><span class="sig-name descname"><span class="n"><span class="pre">Args</span></span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_status_1a271ce890dfa95b2d9a29c181050b8d9c"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_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">IndexError</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4IDpEN5arrow6Status10IndexErrorE6StatusDpRR4Args" title="arrow::Status::IndexError::Args"><span class="n"><span class="pre">Args</span></span></a><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">...</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">args</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4IDpEN5arrow6Status10IndexErrorE6StatusDpRR4Args" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return an error status when an index is out of bounds. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4IDpEN5arrow6Status13CapacityErrorE6StatusDpRR4Args">
<span id="_CPPv3IDpEN5arrow6Status13CapacityErrorEDpRR4Args"></span><span id="_CPPv2IDpEN5arrow6Status13CapacityErrorEDpRR4Args"></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="p"><span class="pre">...</span></span><span class="sig-name descname"><span class="n"><span class="pre">Args</span></span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_status_1a116186da015799d2efc8446ec709d4af"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_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">CapacityError</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4IDpEN5arrow6Status13CapacityErrorE6StatusDpRR4Args" title="arrow::Status::CapacityError::Args"><span class="n"><span class="pre">Args</span></span></a><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">...</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">args</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4IDpEN5arrow6Status13CapacityErrorE6StatusDpRR4Args" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return an error status when a container’s capacity would exceed its limits. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4IDpEN5arrow6Status7IOErrorE6StatusDpRR4Args">
<span id="_CPPv3IDpEN5arrow6Status7IOErrorEDpRR4Args"></span><span id="_CPPv2IDpEN5arrow6Status7IOErrorEDpRR4Args"></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="p"><span class="pre">...</span></span><span class="sig-name descname"><span class="n"><span class="pre">Args</span></span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_status_1a4d6fc084d924c8297e35b9996c4171b3"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_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">IOError</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4IDpEN5arrow6Status7IOErrorE6StatusDpRR4Args" title="arrow::Status::IOError::Args"><span class="n"><span class="pre">Args</span></span></a><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">...</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">args</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4IDpEN5arrow6Status7IOErrorE6StatusDpRR4Args" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return an error status when some IO-related operation failed. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4IDpEN5arrow6Status18SerializationErrorE6StatusDpRR4Args">
<span id="_CPPv3IDpEN5arrow6Status18SerializationErrorEDpRR4Args"></span><span id="_CPPv2IDpEN5arrow6Status18SerializationErrorEDpRR4Args"></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="p"><span class="pre">...</span></span><span class="sig-name descname"><span class="n"><span class="pre">Args</span></span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_status_1a0852f0d35526dc31345154f92c955c00"></span><span class="k"><span class="pre">static</span></span><span class="w"> </span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_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">SerializationError</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4IDpEN5arrow6Status18SerializationErrorE6StatusDpRR4Args" title="arrow::Status::SerializationError::Args"><span class="n"><span class="pre">Args</span></span></a><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">...</span></span><span class="w"> </span><span class="n sig-param"><span class="pre">args</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4IDpEN5arrow6Status18SerializationErrorE6StatusDpRR4Args" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return an error status when some (de)serialization operation failed. </p>
</dd></dl>
</div>
</dd></dl>
<dl class="cpp class">
<dt class="sig sig-object cpp" id="_CPPv4N5arrow12StatusDetailE">
<span id="_CPPv3N5arrow12StatusDetailE"></span><span id="_CPPv2N5arrow12StatusDetailE"></span><span id="arrow::StatusDetail"></span><span class="target" id="classarrow_1_1_status_detail"></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">StatusDetail</span></span></span><a class="headerlink" href="#_CPPv4N5arrow12StatusDetailE" title="Permalink to this definition"></a><br /></dt>
<dd><p>An opaque class that allows subsystems to retain additional information inside the <a class="reference internal" href="#classarrow_1_1_status"><span class="std std-ref">Status</span></a>. </p>
<p>Subclassed by <a class="reference internal" href="flight.html#classarrow_1_1flight_1_1_flight_status_detail"><span class="std std-ref">arrow::flight::FlightStatusDetail</span></a>, arrow::flight::FlightWriteSizeStatusDetail</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="_CPPv4NK5arrow12StatusDetail7type_idEv">
<span id="_CPPv3NK5arrow12StatusDetail7type_idEv"></span><span id="_CPPv2NK5arrow12StatusDetail7type_idEv"></span><span id="arrow::StatusDetail::type_idC"></span><span class="target" id="classarrow_1_1_status_detail_1a66dda1b3cbbe2bcdad3e8d59025c8412"></span><span class="k"><span class="pre">virtual</span></span><span class="w"> </span><span class="k"><span class="pre">const</span></span><span class="w"> </span><span class="kt"><span class="pre">char</span></span><span class="w"> </span><span class="p"><span class="pre">*</span></span><span class="sig-name descname"><span class="n"><span class="pre">type_id</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="#_CPPv4NK5arrow12StatusDetail7type_idEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Return a unique id for the type of the <a class="reference internal" href="#classarrow_1_1_status_detail"><span class="std std-ref">StatusDetail</span></a> (effectively a poor man’s substitute for RTTI). </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow12StatusDetail8ToStringEv">
<span id="_CPPv3NK5arrow12StatusDetail8ToStringEv"></span><span id="_CPPv2NK5arrow12StatusDetail8ToStringEv"></span><span id="arrow::StatusDetail::ToStringC"></span><span class="target" id="classarrow_1_1_status_detail_1accc5886393328acc3c91d6ad1874a7c6"></span><span class="k"><span class="pre">virtual</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="sig-name descname"><span class="n"><span class="pre">ToString</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="#_CPPv4NK5arrow12StatusDetail8ToStringEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Produce a human-readable description of this status. </p>
</dd></dl>
</div>
</dd></dl>
<dl class="cpp class">
<dt class="sig sig-object cpp" id="_CPPv4I0EN5arrow6ResultE">
<span id="_CPPv3I0EN5arrow6ResultE"></span><span id="_CPPv2I0EN5arrow6ResultE"></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">class</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_result"></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">Result</span></span></span><a class="headerlink" href="#_CPPv4I0EN5arrow6ResultE" title="Permalink to this definition"></a><br /></dt>
<dd><p>A class for representing either a usable value, or an error. </p>
<p>A <a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a> object either contains a value of type <code class="docutils literal notranslate"><span class="pre">T</span></code> or a <a class="reference internal" href="#classarrow_1_1_status"><span class="std std-ref">Status</span></a> object explaining why such a value is not present. The type <code class="docutils literal notranslate"><span class="pre">T</span></code> must be copy-constructible and/or move-constructible.</p>
<p>The state of a <a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a> object may be determined by calling <a class="reference internal" href="#classarrow_1_1_result_1a6d1f64c394afe8ba05938053be5939bf"><span class="std std-ref">ok()</span></a> or <a class="reference internal" href="#classarrow_1_1_result_1ae207da80416a90202f70b7afa37a9ece"><span class="std std-ref">status()</span></a>. The <a class="reference internal" href="#classarrow_1_1_result_1a6d1f64c394afe8ba05938053be5939bf"><span class="std std-ref">ok()</span></a> method returns true if the object contains a valid value. The <a class="reference internal" href="#classarrow_1_1_result_1ae207da80416a90202f70b7afa37a9ece"><span class="std std-ref">status()</span></a> method returns the internal <a class="reference internal" href="#classarrow_1_1_status"><span class="std std-ref">Status</span></a> object. A <a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a> object that contains a valid value will return an OK <a class="reference internal" href="#classarrow_1_1_status"><span class="std std-ref">Status</span></a> for a call to <a class="reference internal" href="#classarrow_1_1_result_1ae207da80416a90202f70b7afa37a9ece"><span class="std std-ref">status()</span></a>.</p>
<p>A value of type <code class="docutils literal notranslate"><span class="pre">T</span></code> may be extracted from a <a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a> object through a call to <a class="reference internal" href="#classarrow_1_1_result_1a03d0aee5e9074bf75b98f7d35dbc7fd3"><span class="std std-ref">ValueOrDie()</span></a>. This function should only be called if a call to <a class="reference internal" href="#classarrow_1_1_result_1a6d1f64c394afe8ba05938053be5939bf"><span class="std std-ref">ok()</span></a> returns true. Sample usage:</p>
<p><div class="highlight-default notranslate"><div class="highlight"><pre><span></span> <span class="n">arrow</span><span class="p">::</span><span class="n">Result</span><span class="o">&lt;</span><span class="n">Foo</span><span class="o">&gt;</span> <span class="n">result</span> <span class="o">=</span> <span class="n">CalculateFoo</span><span class="p">();</span>
<span class="k">if</span> <span class="p">(</span><span class="n">result</span><span class="o">.</span><span class="n">ok</span><span class="p">())</span> <span class="p">{</span>
<span class="n">Foo</span> <span class="n">foo</span> <span class="o">=</span> <span class="n">result</span><span class="o">.</span><span class="n">ValueOrDie</span><span class="p">();</span>
<span class="n">foo</span><span class="o">.</span><span class="n">DoSomethingCool</span><span class="p">();</span>
<span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
<span class="n">ARROW_LOG</span><span class="p">(</span><span class="n">ERROR</span><span class="p">)</span> <span class="o">&lt;&lt;</span> <span class="n">result</span><span class="o">.</span><span class="n">status</span><span class="p">();</span>
<span class="p">}</span>
</pre></div>
</div>
</p>
<p>If <code class="docutils literal notranslate"><span class="pre">T</span></code> is a move-only type, like <code class="docutils literal notranslate"><span class="pre">std::unique_ptr&lt;&gt;</span></code>, then the value should only be extracted after invoking <code class="docutils literal notranslate"><span class="pre">std::move()</span></code> on the <a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a> object. Sample usage:</p>
<p><div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">arrow</span><span class="p">::</span><span class="n">Result</span><span class="o">&lt;</span><span class="n">std</span><span class="p">::</span><span class="n">unique_ptr</span><span class="o">&lt;</span><span class="n">Foo</span><span class="o">&gt;&gt;</span> <span class="n">result</span> <span class="o">=</span> <span class="n">CalculateFoo</span><span class="p">();</span>
<span class="k">if</span> <span class="p">(</span><span class="n">result</span><span class="o">.</span><span class="n">ok</span><span class="p">())</span> <span class="p">{</span>
<span class="n">std</span><span class="p">::</span><span class="n">unique_ptr</span><span class="o">&lt;</span><span class="n">Foo</span><span class="o">&gt;</span> <span class="n">foo</span> <span class="o">=</span> <span class="n">std</span><span class="p">::</span><span class="n">move</span><span class="p">(</span><span class="n">result</span><span class="p">)</span><span class="o">.</span><span class="n">ValueOrDie</span><span class="p">();</span>
<span class="n">foo</span><span class="o">-&gt;</span><span class="n">DoSomethingCool</span><span class="p">();</span>
<span class="p">}</span> <span class="k">else</span> <span class="p">{</span>
<span class="n">ARROW_LOG</span><span class="p">(</span><span class="n">ERROR</span><span class="p">)</span> <span class="o">&lt;&lt;</span> <span class="n">result</span><span class="o">.</span><span class="n">status</span><span class="p">();</span>
<span class="p">}</span>
</pre></div>
</div>
</p>
<p><a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a> is provided for the convenience of implementing functions that return some value but may fail during execution. For instance, consider a function with the following signature:</p>
<p><div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">arrow</span><span class="p">::</span><span class="n">Status</span> <span class="n">CalculateFoo</span><span class="p">(</span><span class="nb">int</span> <span class="o">*</span><span class="n">output</span><span class="p">);</span>
</pre></div>
</div>
</p>
<p>This function may instead be written as:</p>
<p><div class="highlight-default notranslate"><div class="highlight"><pre><span></span><span class="n">arrow</span><span class="p">::</span><span class="n">Result</span><span class="o">&lt;</span><span class="nb">int</span><span class="o">&gt;</span> <span class="n">CalculateFoo</span><span class="p">();</span>
</pre></div>
</div>
</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="_CPPv4N5arrow6Result6ResultEv">
<span id="_CPPv3N5arrow6Result6ResultEv"></span><span id="_CPPv2N5arrow6Result6ResultEv"></span><span id="arrow::Result::Result"></span><span class="target" id="classarrow_1_1_result_1afc67b86669f44cf44a1e326665408a02"></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">Result</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow6Result6ResultEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Constructs a <a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a> object that contains a non-OK status. </p>
<p>This constructor is marked <code class="docutils literal notranslate"><span class="pre">explicit</span></code> to prevent attempts to <code class="docutils literal notranslate"><span class="pre">return</span> <span class="pre">{}</span></code> from a function with a return type of, for example, <code class="docutils literal notranslate"><a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref"><span class="pre">Result</span></span></a><span class="pre">&lt;std::vector&lt;int&gt;&gt;</span></code>. While <code class="docutils literal notranslate"><span class="pre">return</span> <span class="pre">{}</span></code> seems like it would return an empty vector, it will actually invoke the default constructor of <a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a>. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4N5arrow6Result6ResultERK6Status">
<span id="_CPPv3N5arrow6Result6ResultERK6Status"></span><span id="_CPPv2N5arrow6Result6ResultERK6Status"></span><span id="arrow::Result::Result__StatusCR"></span><span class="target" id="classarrow_1_1_result_1a60d1d677ca61ef1e30f8491e74de33d5"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Result</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="#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="p"><span class="pre">&amp;</span></span><span class="n sig-param"><span class="pre">status</span></span><span class="sig-paren">)</span><a class="headerlink" href="#_CPPv4N5arrow6Result6ResultERK6Status" title="Permalink to this definition"></a><br /></dt>
<dd><p>Constructs a <a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a> object with the given non-OK <a class="reference internal" href="#classarrow_1_1_status"><span class="std std-ref">Status</span></a> object. </p>
<p>All calls to <a class="reference internal" href="#classarrow_1_1_result_1a03d0aee5e9074bf75b98f7d35dbc7fd3"><span class="std std-ref">ValueOrDie()</span></a> on this object will abort. The given <code class="docutils literal notranslate"><span class="pre">status</span></code> must not be an OK status, otherwise this constructor will abort.</p>
<p>This constructor is not declared explicit so that a function with a return type of <code class="docutils literal notranslate"><a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref"><span class="pre">Result</span></span></a><span class="pre">&lt;T&gt;</span></code> can return a <a class="reference internal" href="#classarrow_1_1_status"><span class="std std-ref">Status</span></a> object, and the status will be implicitly converted to the appropriate return type as a matter of convenience.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>status</strong> – The non-OK <a class="reference internal" href="#classarrow_1_1_status"><span class="std std-ref">Status</span></a> object to initialize to. </p>
</dd>
</dl>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4I00EN5arrow6Result6ResultERR1U">
<span id="_CPPv3I00EN5arrow6Result6ResultERR1U"></span><span id="_CPPv2I00EN5arrow6Result6ResultERR1U"></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">U</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="sig-name descname"><span class="n"><span class="pre">E</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">typename</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">enable_if</span></span><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">is_constructible</span></span><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result::T"><span class="n"><span class="pre">T</span></span></a><span class="p"><span class="pre">,</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4I00EN5arrow6Result6ResultERR1U" title="arrow::Result::Result::U"><span class="n"><span class="pre">U</span></span></a><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">value</span></span><span class="w"> </span><span class="o"><span class="pre">&amp;&amp;</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">is_convertible</span></span><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4I00EN5arrow6Result6ResultERR1U" title="arrow::Result::Result::U"><span class="n"><span class="pre">U</span></span></a><span class="p"><span class="pre">,</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result::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">::</span></span><span class="n"><span class="pre">value</span></span><span class="w"> </span><span class="o"><span class="pre">&amp;&amp;</span></span><span class="w"> </span><span class="o"><span class="pre">!</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">is_same</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="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">remove_reference</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="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">remove_cv</span></span><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4I00EN5arrow6Result6ResultERR1U" title="arrow::Result::Result::U"><span class="n"><span class="pre">U</span></span></a><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">type</span></span><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">type</span></span><span class="p"><span class="pre">,</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">value</span></span><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">type</span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_result_1af99acb73441cc6ef82bfcd4d45609331"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Result</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4I00EN5arrow6Result6ResultERR1U" title="arrow::Result::Result::U"><span class="n"><span class="pre">U</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">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="#_CPPv4I00EN5arrow6Result6ResultERR1U" title="Permalink to this definition"></a><br /></dt>
<dd><p>Constructs a <a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a> object that contains <code class="docutils literal notranslate"><span class="pre">value</span></code>. </p>
<p>The resulting object is considered to have an OK status. The wrapped element can be accessed with <a class="reference internal" href="#classarrow_1_1_result_1a03d0aee5e9074bf75b98f7d35dbc7fd3"><span class="std std-ref">ValueOrDie()</span></a>.</p>
<p>This constructor is made implicit so that a function with a return type of <code class="docutils literal notranslate"><a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref"><span class="pre">Result</span></span></a><span class="pre">&lt;T&gt;</span></code> can return an object of type <code class="docutils literal notranslate"><span class="pre">U</span> <span class="pre">&amp;&amp;</span></code>, implicitly converting it to a <code class="docutils literal notranslate"><a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref"><span class="pre">Result</span></span></a><span class="pre">&lt;T&gt;</span></code> object.</p>
<p>Note that <code class="docutils literal notranslate"><span class="pre">T</span></code> must be implicitly constructible from <code class="docutils literal notranslate"><span class="pre">U</span></code>, and <code class="docutils literal notranslate"><span class="pre">U</span></code> must not be a (cv-qualified) <a class="reference internal" href="#classarrow_1_1_status"><span class="std std-ref">Status</span></a> or Status-reference type. Due to C++ reference-collapsing rules and perfect-forwarding semantics, this constructor matches invocations that pass <code class="docutils literal notranslate"><span class="pre">value</span></code> either as a const reference or as an rvalue reference. Since <a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a> needs to work for both reference and rvalue-reference types, the constructor uses perfect forwarding to avoid invalidating arguments that were passed by reference. See <a class="reference external" href="http://thbecker.net/articles/rvalue_references/section_08.html">http://thbecker.net/articles/rvalue_references/section_08.html</a> for additional details.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>value</strong> – The value to initialize to. </p>
</dd>
</dl>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4N5arrow6Result6ResultERR1T">
<span id="_CPPv3N5arrow6Result6ResultERR1T"></span><span id="_CPPv2N5arrow6Result6ResultERR1T"></span><span id="arrow::Result::Result__TRR"></span><span class="target" id="classarrow_1_1_result_1aa2db3792c16bf783a1c00b7601c35799"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Result</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result::T"><span class="n"><span class="pre">T</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">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="#_CPPv4N5arrow6Result6ResultERR1T" title="Permalink to this definition"></a><br /></dt>
<dd><p>Constructs a <a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a> object that contains <code class="docutils literal notranslate"><span class="pre">value</span></code>. </p>
<p>The resulting object is considered to have an OK status. The wrapped element can be accessed with <a class="reference internal" href="#classarrow_1_1_result_1a03d0aee5e9074bf75b98f7d35dbc7fd3"><span class="std std-ref">ValueOrDie()</span></a>.</p>
<p>This constructor is made implicit so that a function with a return type of <code class="docutils literal notranslate"><a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref"><span class="pre">Result</span></span></a><span class="pre">&lt;T&gt;</span></code> can return an object of type <code class="docutils literal notranslate"><span class="pre">T</span></code>, implicitly converting it to a <code class="docutils literal notranslate"><a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref"><span class="pre">Result</span></span></a><span class="pre">&lt;T&gt;</span></code> object.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>value</strong> – The value to initialize to. </p>
</dd>
</dl>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4N5arrow6Result6ResultERK6Result">
<span id="_CPPv3N5arrow6Result6ResultERK6Result"></span><span id="_CPPv2N5arrow6Result6ResultERK6Result"></span><span id="arrow::Result::Result__ResultCR"></span><span class="target" id="classarrow_1_1_result_1a9bcbb1f9b195c373c4aab239960493ef"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Result</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="#_CPPv4N5arrow6Result6ResultERK6Result" title="arrow::Result::Result"><span class="n"><span class="pre">Result</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><a class="headerlink" href="#_CPPv4N5arrow6Result6ResultERK6Result" title="Permalink to this definition"></a><br /></dt>
<dd><p>Copy constructor. </p>
<p>This constructor needs to be explicitly defined because the presence of the move-assignment operator deletes the default copy constructor. In such a scenario, since the deleted copy constructor has stricter binding rules than the templated copy constructor, the templated constructor cannot act as a copy constructor, and any attempt to copy-construct a <code class="docutils literal notranslate"><a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref"><span class="pre">Result</span></span></a></code> object results in a compilation error.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>other</strong> – The value to copy from. </p>
</dd>
</dl>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4I00EN5arrow6Result6ResultERK6ResultI1UE">
<span id="_CPPv3I00EN5arrow6Result6ResultERK6ResultI1UE"></span><span id="_CPPv2I00EN5arrow6Result6ResultERK6ResultI1UE"></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">U</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="sig-name descname"><span class="n"><span class="pre">E</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">typename</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">enable_if</span></span><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">is_constructible</span></span><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result::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="k"><span class="pre">const</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4I00EN5arrow6Result6ResultERK6ResultI1UE" title="arrow::Result::Result::U"><span class="n"><span class="pre">U</span></span></a><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">value</span></span><span class="w"> </span><span class="o"><span class="pre">&amp;&amp;</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">is_convertible</span></span><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4I00EN5arrow6Result6ResultERK6ResultI1UE" title="arrow::Result::Result::U"><span class="n"><span class="pre">U</span></span></a><span class="p"><span class="pre">,</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result::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">::</span></span><span class="n"><span class="pre">value</span></span><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">type</span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_result_1af71726e519c053eef6faf7192484eae7"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Result</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="#_CPPv4I00EN5arrow6Result6ResultERK6ResultI1UE" title="arrow::Result::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="#_CPPv4I00EN5arrow6Result6ResultERK6ResultI1UE" title="arrow::Result::Result::U"><span class="n"><span class="pre">U</span></span></a><span class="p"><span class="pre">&gt;</span></span><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><a class="headerlink" href="#_CPPv4I00EN5arrow6Result6ResultERK6ResultI1UE" title="Permalink to this definition"></a><br /></dt>
<dd><p>Templatized constructor that constructs a <code class="docutils literal notranslate"><a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref"><span class="pre">Result</span></span></a><span class="pre">&lt;T&gt;</span></code> from a const reference to a <code class="docutils literal notranslate"><a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref"><span class="pre">Result</span></span></a><span class="pre">&lt;U&gt;</span></code>. </p>
<p><code class="docutils literal notranslate"><span class="pre">T</span></code> must be implicitly constructible from <code class="docutils literal notranslate"><span class="pre">const</span> <span class="pre">U</span> <span class="pre">&amp;</span></code>.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>other</strong> – The value to copy from. </p>
</dd>
</dl>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4N5arrow6ResultaSERK6Result">
<span id="_CPPv3N5arrow6ResultaSERK6Result"></span><span id="_CPPv2N5arrow6ResultaSERK6Result"></span><span id="arrow::Result::assign-operator__ResultCR"></span><span class="target" id="classarrow_1_1_result_1a7020bc6122c8b88816de0ab02c22559f"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="w"> </span><span class="p"><span class="pre">&amp;</span></span><span class="sig-name descname"><span class="k"><span class="pre">operator</span></span><span class="o"><span class="pre">=</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="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</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><a class="headerlink" href="#_CPPv4N5arrow6ResultaSERK6Result" title="Permalink to this definition"></a><br /></dt>
<dd><p>Copy-assignment operator. </p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>other</strong> – The <a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a> object to copy. </p>
</dd>
</dl>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4I00EN5arrow6Result6ResultERR6ResultI1UE">
<span id="_CPPv3I00EN5arrow6Result6ResultERR6ResultI1UE"></span><span id="_CPPv2I00EN5arrow6Result6ResultERR6ResultI1UE"></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">U</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="sig-name descname"><span class="n"><span class="pre">E</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">typename</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">enable_if</span></span><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">is_constructible</span></span><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result::T"><span class="n"><span class="pre">T</span></span></a><span class="p"><span class="pre">,</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4I00EN5arrow6Result6ResultERR6ResultI1UE" title="arrow::Result::Result::U"><span class="n"><span class="pre">U</span></span></a><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">value</span></span><span class="w"> </span><span class="o"><span class="pre">&amp;&amp;</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">is_convertible</span></span><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4I00EN5arrow6Result6ResultERR6ResultI1UE" title="arrow::Result::Result::U"><span class="n"><span class="pre">U</span></span></a><span class="p"><span class="pre">,</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result::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">::</span></span><span class="n"><span class="pre">value</span></span><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">type</span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_result_1a336d8e48cd7f713e4f82b26869f715c6"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Result</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4I00EN5arrow6Result6ResultERR6ResultI1UE" title="arrow::Result::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="#_CPPv4I00EN5arrow6Result6ResultERR6ResultI1UE" title="arrow::Result::Result::U"><span class="n"><span class="pre">U</span></span></a><span class="p"><span class="pre">&gt;</span></span><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">other</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">noexcept</span></span><a class="headerlink" href="#_CPPv4I00EN5arrow6Result6ResultERR6ResultI1UE" title="Permalink to this definition"></a><br /></dt>
<dd><p>Templatized constructor which constructs a <code class="docutils literal notranslate"><a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref"><span class="pre">Result</span></span></a><span class="pre">&lt;T&gt;</span></code> by moving the contents of a <code class="docutils literal notranslate"><a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref"><span class="pre">Result</span></span></a><span class="pre">&lt;U&gt;</span></code>. </p>
<p><code class="docutils literal notranslate"><span class="pre">T</span></code> must be implicitly constructible from <code class="docutils literal notranslate"><span class="pre">U</span> <span class="pre">&amp;&amp;</span></code>.</p>
<p>Sets <code class="docutils literal notranslate"><span class="pre">other</span></code> to contain a non-OK status with a<code class="docutils literal notranslate"><span class="pre">StatusError::Invalid</span></code> error code.</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>other</strong> – The <a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a> object to move from and set to a non-OK status. </p>
</dd>
</dl>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4N5arrow6ResultaSERR6Result">
<span id="_CPPv3N5arrow6ResultaSERR6Result"></span><span id="_CPPv2N5arrow6ResultaSERR6Result"></span><span id="arrow::Result::assign-operator__ResultRR"></span><span class="target" id="classarrow_1_1_result_1a96d8f265891a8a7d3fba447c94ccde75"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</span></span></a><span class="w"> </span><span class="p"><span class="pre">&amp;</span></span><span class="sig-name descname"><span class="k"><span class="pre">operator</span></span><span class="o"><span class="pre">=</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</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">other</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="k"><span class="pre">noexcept</span></span><a class="headerlink" href="#_CPPv4N5arrow6ResultaSERR6Result" title="Permalink to this definition"></a><br /></dt>
<dd><p>Move-assignment operator. </p>
<p>Sets <code class="docutils literal notranslate"><span class="pre">other</span></code> to an invalid state..</p>
<dl class="field-list simple">
<dt class="field-odd">Parameters</dt>
<dd class="field-odd"><p><strong>other</strong> – The <a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a> object to assign from and set to a non-OK status. </p>
</dd>
</dl>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow6Result6EqualsERK6Result">
<span id="_CPPv3NK5arrow6Result6EqualsERK6Result"></span><span id="_CPPv2NK5arrow6Result6EqualsERK6Result"></span><span id="arrow::Result::Equals__ResultCRC"></span><span class="target" id="classarrow_1_1_result_1a179348089c1f091b6e20d3b576b6593d"></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="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result"><span class="n"><span class="pre">Result</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="#_CPPv4NK5arrow6Result6EqualsERK6Result" title="Permalink to this definition"></a><br /></dt>
<dd><p>Compare to another <a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a>. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow6Result2okEv">
<span id="_CPPv3NK5arrow6Result2okEv"></span><span id="_CPPv2NK5arrow6Result2okEv"></span><span id="arrow::Result::okC"></span><span class="target" id="classarrow_1_1_result_1a6d1f64c394afe8ba05938053be5939bf"></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">ok</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="#_CPPv4NK5arrow6Result2okEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Indicates whether the object contains a <code class="docutils literal notranslate"><span class="pre">T</span></code> value. </p>
<p>Generally instead of accessing this directly you will want to use ASSIGN_OR_RAISE defined below.</p>
<dl class="field-list simple">
<dt class="field-odd">Returns</dt>
<dd class="field-odd"><p>True if this <a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a> object’s status is OK (i.e. a call to <a class="reference internal" href="#classarrow_1_1_result_1a6d1f64c394afe8ba05938053be5939bf"><span class="std std-ref">ok()</span></a> returns true). If this function returns true, then it is safe to access the wrapped element through a call to <a class="reference internal" href="#classarrow_1_1_result_1a03d0aee5e9074bf75b98f7d35dbc7fd3"><span class="std std-ref">ValueOrDie()</span></a>. </p>
</dd>
</dl>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NK5arrow6Result6statusEv">
<span id="_CPPv3NK5arrow6Result6statusEv"></span><span id="_CPPv2NK5arrow6Result6statusEv"></span><span id="arrow::Result::statusC"></span><span class="target" id="classarrow_1_1_result_1ae207da80416a90202f70b7afa37a9ece"></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><a class="reference internal" href="#_CPPv4N5arrow6StatusE" title="arrow::Status"><span class="n"><span class="pre">Status</span></span></a><span class="w"> </span><span class="p"><span class="pre">&amp;</span></span><span class="sig-name descname"><span class="n"><span class="pre">status</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="#_CPPv4NK5arrow6Result6statusEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Equivalent to <a class="reference internal" href="#classarrow_1_1_result_1a6d1f64c394afe8ba05938053be5939bf"><span class="std std-ref">ok()</span></a>. </p>
<p>Gets the stored status object, or an OK status if a <code class="docutils literal notranslate"><span class="pre">T</span></code> value is stored.</p>
<dl class="field-list simple">
<dt class="field-odd">Returns</dt>
<dd class="field-odd"><p>The stored non-OK status object, or an OK status if this object has a value. </p>
</dd>
</dl>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NKR5arrow6Result10ValueOrDieEv">
<span id="_CPPv3NKR5arrow6Result10ValueOrDieEv"></span><span id="_CPPv2NKR5arrow6Result10ValueOrDieEv"></span><span id="arrow::Result::ValueOrDieCR"></span><span class="target" id="classarrow_1_1_result_1a03d0aee5e9074bf75b98f7d35dbc7fd3"></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><a class="reference internal" href="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result::T"><span class="n"><span class="pre">T</span></span></a><span class="w"> </span><span class="p"><span class="pre">&amp;</span></span><span class="sig-name descname"><span class="n"><span class="pre">ValueOrDie</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">&amp;</span></span><a class="headerlink" href="#_CPPv4NKR5arrow6Result10ValueOrDieEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Gets the stored <code class="docutils literal notranslate"><span class="pre">T</span></code> value. </p>
<p>This method should only be called if this <a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a> object’s status is OK (i.e. a call to <a class="reference internal" href="#classarrow_1_1_result_1a6d1f64c394afe8ba05938053be5939bf"><span class="std std-ref">ok()</span></a> returns true), otherwise this call will abort.</p>
<dl class="field-list simple">
<dt class="field-odd">Returns</dt>
<dd class="field-odd"><p>The stored <code class="docutils literal notranslate"><span class="pre">T</span></code> value. </p>
</dd>
</dl>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NR5arrow6Result10ValueOrDieEv">
<span id="_CPPv3NR5arrow6Result10ValueOrDieEv"></span><span id="_CPPv2NR5arrow6Result10ValueOrDieEv"></span><span id="arrow::Result::ValueOrDieR"></span><span class="target" id="classarrow_1_1_result_1af06a0a8c358b090595586e91fe85ca42"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result::T"><span class="n"><span class="pre">T</span></span></a><span class="w"> </span><span class="p"><span class="pre">&amp;</span></span><span class="sig-name descname"><span class="n"><span class="pre">ValueOrDie</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="p"><span class="pre">&amp;</span></span><a class="headerlink" href="#_CPPv4NR5arrow6Result10ValueOrDieEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Gets a mutable reference to the stored <code class="docutils literal notranslate"><span class="pre">T</span></code> value. </p>
<p>This method should only be called if this <a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a> object’s status is OK (i.e. a call to <a class="reference internal" href="#classarrow_1_1_result_1a6d1f64c394afe8ba05938053be5939bf"><span class="std std-ref">ok()</span></a> returns true), otherwise this call will abort.</p>
<dl class="field-list simple">
<dt class="field-odd">Returns</dt>
<dd class="field-odd"><p>The stored <code class="docutils literal notranslate"><span class="pre">T</span></code> value. </p>
</dd>
</dl>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NO5arrow6Result10ValueOrDieEv">
<span id="_CPPv3NO5arrow6Result10ValueOrDieEv"></span><span id="_CPPv2NO5arrow6Result10ValueOrDieEv"></span><span id="arrow::Result::ValueOrDieO"></span><span class="target" id="classarrow_1_1_result_1aeddcd41d61cb41b2fdca0cc814ff03c9"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result::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">ValueOrDie</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="p"><span class="pre">&amp;&amp;</span></span><a class="headerlink" href="#_CPPv4NO5arrow6Result10ValueOrDieEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Moves and returns the internally-stored <code class="docutils literal notranslate"><span class="pre">T</span></code> value. </p>
<p>This method should only be called if this <a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a> object’s status is OK (i.e. a call to <a class="reference internal" href="#classarrow_1_1_result_1a6d1f64c394afe8ba05938053be5939bf"><span class="std std-ref">ok()</span></a> returns true), otherwise this call will abort. The <a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a> object is invalidated after this call and will be updated to contain a non-OK status.</p>
<dl class="field-list simple">
<dt class="field-odd">Returns</dt>
<dd class="field-odd"><p>The stored <code class="docutils literal notranslate"><span class="pre">T</span></code> value. </p>
</dd>
</dl>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4I00ENO5arrow6Result5ValueE6StatusP1U">
<span id="_CPPv3I00ENO5arrow6Result5ValueEP1U"></span><span id="_CPPv2I00ENO5arrow6Result5ValueEP1U"></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">U</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="sig-name descname"><span class="n"><span class="pre">E</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">typename</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">enable_if</span></span><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">is_constructible</span></span><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4I00ENO5arrow6Result5ValueE6StatusP1U" title="arrow::Result::Value::U"><span class="n"><span class="pre">U</span></span></a><span class="p"><span class="pre">,</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result::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">::</span></span><span class="n"><span class="pre">value</span></span><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">type</span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_result_1a4ba6599a83fc659b24e4336eb06b9ae4"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_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">Value</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4I00ENO5arrow6Result5ValueE6StatusP1U" title="arrow::Result::Value::U"><span class="n"><span class="pre">U</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="p"><span class="pre">&amp;&amp;</span></span><a class="headerlink" href="#_CPPv4I00ENO5arrow6Result5ValueE6StatusP1U" title="Permalink to this definition"></a><br /></dt>
<dd><p>Helper method for implementing <a class="reference internal" href="#classarrow_1_1_status"><span class="std std-ref">Status</span></a> returning functions in terms of semantically equivalent <a class="reference internal" href="#classarrow_1_1_result"><span class="std std-ref">Result</span></a> returning functions. </p>
<p>For example:</p>
<p><a class="reference internal" href="#classarrow_1_1_status"><span class="std std-ref">Status</span></a> GetInt(int *out) { return GetInt().Value(out); } </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4NO5arrow6Result7ValueOrE1T">
<span id="_CPPv3NO5arrow6Result7ValueOrE1T"></span><span id="_CPPv2NO5arrow6Result7ValueOrE1T"></span><span id="arrow::Result::ValueOr__TO"></span><span class="target" id="classarrow_1_1_result_1a00ecc57de8813a5e587060f42e036462"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result::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">ValueOr</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result::T"><span class="n"><span class="pre">T</span></span></a><span class="w"> </span><span class="n sig-param"><span class="pre">alternative</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="p"><span class="pre">&amp;&amp;</span></span><a class="headerlink" href="#_CPPv4NO5arrow6Result7ValueOrE1T" title="Permalink to this definition"></a><br /></dt>
<dd><p>Move and return the internally stored value or alternative if an error is stored. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4I0ENO5arrow6Result11ValueOrElseE1TRR1G">
<span id="_CPPv3I0ENO5arrow6Result11ValueOrElseERR1G"></span><span id="_CPPv2I0ENO5arrow6Result11ValueOrElseERR1G"></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">G</span></span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_result_1a159c85d9159b5e0a3e7f79a00a3f5314"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result::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">ValueOrElse</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4I0ENO5arrow6Result11ValueOrElseE1TRR1G" title="arrow::Result::ValueOrElse::G"><span class="n"><span class="pre">G</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">generate_alternative</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="p"><span class="pre">&amp;&amp;</span></span><a class="headerlink" href="#_CPPv4I0ENO5arrow6Result11ValueOrElseE1TRR1G" title="Permalink to this definition"></a><br /></dt>
<dd><p>Retrieve the value if <a class="reference internal" href="#classarrow_1_1_result_1a6d1f64c394afe8ba05938053be5939bf"><span class="std std-ref">ok()</span></a>, falling back to an alternative generated by the provided factory. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4I0ENO5arrow6Result3MapEN12EnsureResultINSt9result_ofIFRR1M1TEE4typeEE4typeERR1M">
<span id="_CPPv3I0ENO5arrow6Result3MapERR1M"></span><span id="_CPPv2I0ENO5arrow6Result3MapERR1M"></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">M</span></span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_result_1ab926f870ee72deb7366bce9672dd9ec2"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><span class="n"><span class="pre">EnsureResult</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="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">result_of</span></span><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4I0ENO5arrow6Result3MapEN12EnsureResultINSt9result_ofIFRR1M1TEE4typeEE4typeERR1M" title="arrow::Result::Map::M"><span class="n"><span class="pre">M</span></span></a><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">(</span></span><a class="reference internal" href="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result::T"><span class="n"><span class="pre">T</span></span></a><span class="p"><span class="pre">)</span></span><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">type</span></span><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">type</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Map</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4I0ENO5arrow6Result3MapEN12EnsureResultINSt9result_ofIFRR1M1TEE4typeEE4typeERR1M" title="arrow::Result::Map::M"><span class="n"><span class="pre">M</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">m</span></span><span class="sig-paren">)</span><span class="w"> </span><span class="p"><span class="pre">&amp;&amp;</span></span><a class="headerlink" href="#_CPPv4I0ENO5arrow6Result3MapEN12EnsureResultINSt9result_ofIFRR1M1TEE4typeEE4typeERR1M" title="Permalink to this definition"></a><br /></dt>
<dd><p>Apply a function to the internally stored value to produce a new result or propagate the stored error. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4I0ENKR5arrow6Result3MapEN12EnsureResultINSt9result_ofIFRR1MRK1TEE4typeEE4typeERR1M">
<span id="_CPPv3I0ENKR5arrow6Result3MapERR1M"></span><span id="_CPPv2I0ENKR5arrow6Result3MapERR1M"></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">M</span></span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_result_1a210a8617e0df68157099821101b69470"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><span class="n"><span class="pre">EnsureResult</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="n"><span class="pre">std</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">result_of</span></span><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4I0ENKR5arrow6Result3MapEN12EnsureResultINSt9result_ofIFRR1MRK1TEE4typeEE4typeERR1M" title="arrow::Result::Map::M"><span class="n"><span class="pre">M</span></span></a><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">(</span></span><span class="k"><span class="pre">const</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result::T"><span class="n"><span class="pre">T</span></span></a><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">)</span></span><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">type</span></span><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">type</span></span><span class="w"> </span><span class="sig-name descname"><span class="n"><span class="pre">Map</span></span></span><span class="sig-paren">(</span><a class="reference internal" href="#_CPPv4I0ENKR5arrow6Result3MapEN12EnsureResultINSt9result_ofIFRR1MRK1TEE4typeEE4typeERR1M" title="arrow::Result::Map::M"><span class="n"><span class="pre">M</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">m</span></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">&amp;</span></span><a class="headerlink" href="#_CPPv4I0ENKR5arrow6Result3MapEN12EnsureResultINSt9result_ofIFRR1MRK1TEE4typeEE4typeERR1M" title="Permalink to this definition"></a><br /></dt>
<dd><p>Apply a function to the internally stored value to produce a new result or propagate the stored error. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4I00ENO5arrow6Result2AsE6ResultI1UEv">
<span id="_CPPv3I00ENO5arrow6Result2AsEv"></span><span id="_CPPv2I00ENO5arrow6Result2AsEv"></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">U</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="sig-name descname"><span class="n"><span class="pre">E</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">typename</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">enable_if</span></span><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">is_constructible</span></span><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4I00ENO5arrow6Result2AsE6ResultI1UEv" title="arrow::Result::As::U"><span class="n"><span class="pre">U</span></span></a><span class="p"><span class="pre">,</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result::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">::</span></span><span class="n"><span class="pre">value</span></span><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">type</span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_result_1a0e0db5c8bc068ebde88df34649150f33"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_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="#_CPPv4I00ENO5arrow6Result2AsE6ResultI1UEv" title="arrow::Result::As::U"><span class="n"><span class="pre">U</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">As</span></span></span><span class="sig-paren">(</span><span class="sig-paren">)</span><span class="w"> </span><span class="p"><span class="pre">&amp;&amp;</span></span><a class="headerlink" href="#_CPPv4I00ENO5arrow6Result2AsE6ResultI1UEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Cast the internally stored value to produce a new result or propagate the stored error. </p>
</dd></dl>
<dl class="cpp function">
<dt class="sig sig-object cpp" id="_CPPv4I00ENKR5arrow6Result2AsE6ResultI1UEv">
<span id="_CPPv3I00ENKR5arrow6Result2AsEv"></span><span id="_CPPv2I00ENKR5arrow6Result2AsEv"></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">U</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="sig-name descname"><span class="n"><span class="pre">E</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">typename</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">enable_if</span></span><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">is_constructible</span></span><span class="p"><span class="pre">&lt;</span></span><a class="reference internal" href="#_CPPv4I00ENKR5arrow6Result2AsE6ResultI1UEv" title="arrow::Result::As::U"><span class="n"><span class="pre">U</span></span></a><span class="p"><span class="pre">,</span></span><span class="w"> </span><span class="k"><span class="pre">const</span></span><span class="w"> </span><a class="reference internal" href="#_CPPv4I0EN5arrow6ResultE" title="arrow::Result::T"><span class="n"><span class="pre">T</span></span></a><span class="p"><span class="pre">&amp;</span></span><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">value</span></span><span class="p"><span class="pre">&gt;</span></span><span class="p"><span class="pre">::</span></span><span class="n"><span class="pre">type</span></span><span class="p"><span class="pre">&gt;</span></span><br /><span class="target" id="classarrow_1_1_result_1a8138e03f2d6f111f8efb46b56980827f"></span><span class="k"><span class="pre">inline</span></span><span class="w"> </span><a class="reference internal" href="#_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="#_CPPv4I00ENKR5arrow6Result2AsE6ResultI1UEv" title="arrow::Result::As::U"><span class="n"><span class="pre">U</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">As</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">&amp;</span></span><a class="headerlink" href="#_CPPv4I00ENKR5arrow6Result2AsE6ResultI1UEv" title="Permalink to this definition"></a><br /></dt>
<dd><p>Cast the internally stored value to produce a new result or propagate the stored error. </p>
</dd></dl>
</div>
</dd></dl>
<dl class="cpp class">
<dt class="sig sig-object cpp" id="_CPPv4N7parquet16ParquetExceptionE">
<span id="_CPPv3N7parquet16ParquetExceptionE"></span><span id="_CPPv2N7parquet16ParquetExceptionE"></span><span id="parquet::ParquetException"></span><span class="target" id="classparquet_1_1_parquet_exception"></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">ParquetException</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">exception</span></span><a class="headerlink" href="#_CPPv4N7parquet16ParquetExceptionE" title="Permalink to this definition"></a><br /></dt>
<dd><p>Subclassed by parquet::HiddenColumnException, parquet::KeyAccessDeniedException, parquet::ParquetStatusException</p>
</dd></dl>
<dl class="cpp macro">
<dt class="sig sig-object cpp" id="c.ARROW_RETURN_NOT_OK">
<span class="target" id="status_8h_1a4a98c16fff26a2c4cf8c26d9244c1cb4"></span><span class="sig-name descname"><span class="n"><span class="pre">ARROW_RETURN_NOT_OK</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">status</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.ARROW_RETURN_NOT_OK" title="Permalink to this definition"></a><br /></dt>
<dd><p>Propagate any non-successful Status to the caller. </p>
</dd></dl>
<dl class="cpp macro">
<dt class="sig sig-object cpp" id="c.ARROW_ASSIGN_OR_RAISE">
<span class="target" id="result_8h_1aaf9efe9debc83022fad249a0fa56e680"></span><span class="sig-name descname"><span class="n"><span class="pre">ARROW_ASSIGN_OR_RAISE</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">lhs</span></span>, <span class="n"><span class="pre">rexpr</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.ARROW_ASSIGN_OR_RAISE" title="Permalink to this definition"></a><br /></dt>
<dd><p>Execute an expression that returns a Result, extracting its value into the variable defined by <code class="docutils literal notranslate"><span class="pre">lhs</span></code> (or returning a Status on error). </p>
<p>Example: Assigning to a new value: <a class="reference internal" href="#result_8h_1aaf9efe9debc83022fad249a0fa56e680"><span class="std std-ref">ARROW_ASSIGN_OR_RAISE(auto value, MaybeGetValue(arg))</span></a>;</p>
<p>Example: Assigning to an existing value: ValueType value; <a class="reference internal" href="#result_8h_1aaf9efe9debc83022fad249a0fa56e680"><span class="std std-ref">ARROW_ASSIGN_OR_RAISE(value, MaybeGetValue(arg))</span></a>;</p>
<p>WARNING: ARROW_ASSIGN_OR_RAISE expands into multiple statements; it cannot be used in a single statement (e.g. as the body of an if statement without {})!</p>
<p>WARNING: ARROW_ASSIGN_OR_RAISE <code class="docutils literal notranslate"><span class="pre">std::move</span></code>s its right operand. If you have an lvalue Result which you <em>don’t</em> want to move out of cast appropriately. </p>
</dd></dl>
<dl class="cpp macro">
<dt class="sig sig-object cpp" id="c.PARQUET_THROW_NOT_OK">
<span class="target" id="exception_8h_1af08ee16340a6005cdba9a694f4e14af7"></span><span class="sig-name descname"><span class="n"><span class="pre">PARQUET_THROW_NOT_OK</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">s</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PARQUET_THROW_NOT_OK" title="Permalink to this definition"></a><br /></dt>
<dd></dd></dl>
<dl class="cpp macro">
<dt class="sig sig-object cpp" id="c.PARQUET_ASSIGN_OR_THROW">
<span class="target" id="exception_8h_1a01625a07ee3e5c7f3dfa68de421d1948"></span><span class="sig-name descname"><span class="n"><span class="pre">PARQUET_ASSIGN_OR_THROW</span></span></span><span class="sig-paren">(</span><span class="n"><span class="pre">lhs</span></span>, <span class="n"><span class="pre">rexpr</span></span><span class="sig-paren">)</span><a class="headerlink" href="#c.PARQUET_ASSIGN_OR_THROW" title="Permalink to this definition"></a><br /></dt>
<dd></dd></dl>
</div>
</div>
</div>
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