Google Git
Sign in
apache / arrow-site / asf-site / . / docs / dev / c_glib / arrow-glib / method.CSVReadOptions.get_column_names.html
blob: c5ab9e38f6874cf5b3ffe9f8c2ad54b8271e8a28 [file] [log] [blame]
<!--
SPDX-FileCopyrightText: The Apache Software Foundation
SPDX-License-Identifier: Apache-2.0
-->
<!DOCTYPE html>
<html lang="en">
<head>
<title>Arrow.CSVReadOptions.get_column_names</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<meta charset="utf-8" />
<meta property="og:type" content="website"/>
<meta priority="og:title" content="Arrow.CSVReadOptions.get_column_names"/>
<meta priority="og:description" content="Reference for Arrow.CSVReadOptions.get_column_names"/>
<meta name="twitter:title" content="Arrow.CSVReadOptions.get_column_names"/>
<meta name="twitter:description" content="Reference for Arrow.CSVReadOptions.get_column_names"/>
<meta name="twitter:card" content="summary"/>
<link rel="stylesheet" href="style.css" type="text/css" />
<script src="urlmap.js"></script>
<script src="fzy.js"></script>
<script src="search.js"></script>
<script src="main.js"></script>
</head>
<body>
<div id="body-wrapper" tabindex="-1">
<nav class="sidebar devhelp-hidden">
<div class="search section">
<form id="search-form" autocomplete="off">
<input id="search-input" type="text" name="do-not-autocomplete" placeholder="Click, or press 's' to search" autocomplete="off"/>
</form>
</div>
<div class="section namespace">
<h3><a href="index.html">Arrow</a></h3>
<p>API Version: 1.0</p>
<p>Library Version: 22.0.0.dev</p>
</div>
<div class="section">
<h5>Type</h5>
<div class="links">
<a href="class.CSVReadOptions.html">CSVReadOptions</a>
</div>
</div>
<div class="section">
<h5>Methods</h5>
<div class="links">
<a class="method" href="method.CSVReadOptions.add_column_name.html">add_column_name</a>
<a class="method" href="method.CSVReadOptions.add_column_type.html">add_column_type</a>
<a class="method" href="method.CSVReadOptions.add_false_value.html">add_false_value</a>
<a class="method" href="method.CSVReadOptions.add_null_value.html">add_null_value</a>
<a class="method" href="method.CSVReadOptions.add_schema.html">add_schema</a>
<a class="method" href="method.CSVReadOptions.add_timestamp_parser.html">add_timestamp_parser</a>
<a class="method" href="method.CSVReadOptions.add_true_value.html">add_true_value</a>
<a class="method current" href="method.CSVReadOptions.get_column_names.html">get_column_names</a>
<a class="method" href="method.CSVReadOptions.get_column_types.html">get_column_types</a>
<a class="method" href="method.CSVReadOptions.get_false_values.html">get_false_values</a>
<a class="method" href="method.CSVReadOptions.get_null_values.html">get_null_values</a>
<a class="method" href="method.CSVReadOptions.get_timestamp_parsers.html">get_timestamp_parsers</a>
<a class="method" href="method.CSVReadOptions.get_true_values.html">get_true_values</a>
<a class="method" href="method.CSVReadOptions.set_column_names.html">set_column_names</a>
<a class="method" href="method.CSVReadOptions.set_false_values.html">set_false_values</a>
<a class="method" href="method.CSVReadOptions.set_null_values.html">set_null_values</a>
<a class="method" href="method.CSVReadOptions.set_timestamp_parsers.html">set_timestamp_parsers</a>
<a class="method" href="method.CSVReadOptions.set_true_values.html">set_true_values</a>
</div>
</div>
<div class="section generator">
<p>Generated by <a href="https://gitlab.gnome.org/GNOME/gi-docgen">gi-docgen</a> 2023.1</p>
</div>
</nav>
<button id="btn-to-top" class="hidden"><span class="up-arrow"></span></button>
<section id="main" class="content">
<header>
<h3>Method</h3>
<h1><a href="index.html">Arrow</a><span class="sep"></span><a href="class.CSVReadOptions.html">CSVReadOptions</a><span class="sep"></span>get_column_names</h1>
</header>
<section>
<div class="docblock">
<p><span class="emblem available">since: 0.15.0</span></p>
</div>
<div class="declaration toggle-wrapper">
<h4 style="display:flex;" id="declaration">
Declaration
<a class="anchor" href="#declaration"></a>
<a class="srclink" title="go to source location" href="https://github.com/apache/arrow/blob/main/c_glib/arrow-glib/reader.h#L276">[src]</a>
</h4>
<div class="docblock c-decl">
<pre><code><div class="highlight"><pre><span></span><span class="n">gchar</span><span class="o">**</span>
<span class="n">garrow_csv_read_options_get_column_names</span><span class="w"> </span><span class="p">(</span>
<span class="w"> </span><span class="n">GArrowCSVReadOptions</span><span class="o">*</span><span class="w"> </span><span class="n">options</span>
<span class="p">)</span>
</pre></div>
</code></pre>
</div>
</div>
<div class="description toggle-wrapper">
<h4 style="display:flex;" id="description">
Description
<a class="anchor" href="#description"></a>
</h4>
<div class="docblock">
No description available.
</div>
<div class="docblock">
<p>Available since: 0.15.0</p>
</div>
</div>
<div class="return-value toggle-wrapper">
<h4 id="return-value">
Return value
<a href="#return-value" class="anchor"></a>
</h4>
<div class="docblock">
<div class="returns">
<div class="arg-description">
<p><em>Type:</em>&nbsp;An array of&nbsp;<code>utf8</code></p>
<p><p>The column&nbsp;names.</p>
<p>If the number of values is zero, this returns <code>NULL</code>.</p>
<p>It&#8217;s a <code>NULL</code>-terminated string array. It must be freed with
<code>g_strfreev()</code> when no longer&nbsp;needed.</p></p>
</div>
<div>
<table>
<tr><td>The array is <code>NULL</code>-terminated.</td></tr>
<tr><td title="transfer: full">The caller of the method takes ownership of the data, and is responsible for freeing it.</td></tr>
<tr><td>The return value can be <code>NULL</code>.</td></tr>
<tr><td>Each element is a NUL terminated UTF-8 string.</td></tr>
</table>
</div>
</div>
</div>
</div>
</section>
</section>
<section id="search" class="content hidden"></section>
<footer>
</footer>
</div>
</body>
</html>