man/tip/nng_version.3.html


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---
version: tip
layout: manpage_v2
title: nng_version(3)
---
<h1>nng_version(3)</h1>
<div class="sect1">
<h2 id="_name">NAME</h2>
<div class="sectionbody">
<div class="paragraph">
<p>nng_version - report library version</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_synopsis">SYNOPSIS</h2>
<div class="sectionbody">
<div class="listingblock">
<div class="content">
<pre class="pygments highlight"><code data-lang="c"><span></span><span class="tok-cp">#include</span><span class="tok-w"> </span><span class="tok-cpf">&lt;nng/nng.h&gt;</span>

<span class="tok-k">const</span><span class="tok-w"> </span><span class="tok-kt">char</span><span class="tok-w"> </span><span class="tok-o">*</span><span class="tok-w"> </span><span class="tok-nf">nng_version</span><span class="tok-p">(</span><span class="tok-kt">void</span><span class="tok-p">);</span></code></pre>
</div>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_description">DESCRIPTION</h2>
<div class="sectionbody">
<div class="paragraph">
<p>The <code>nng_version()</code> function returns a human readable version number
for <em>NNG</em>.</p>
</div>
<div class="paragraph">
<p>Additionally, compile time version information is available
via some predefined macros:</p>
</div>
<div class="hdlist">
<table>
<tr>
<td class="hdlist1">
<code>NNG_MAJOR_VERSION</code>
</td>
<td class="hdlist2">
<p>Major version number.</p>
</td>
</tr>
<tr>
<td class="hdlist1">
<code>NNG_MINOR_VERSION</code>
</td>
<td class="hdlist2">
<p>Minor version number.</p>
</td>
</tr>
<tr>
<td class="hdlist1">
<code>NNG_PATCH_VERSION</code>
</td>
<td class="hdlist2">
<p>Patch version number.</p>
</td>
</tr>
</table>
</div>
<div class="paragraph">
<p><em>NNG</em> is developed and released using
<a href="http://www.semver.org">Semantic Versioning 2.0</a>, and
the version numbers reported refer to both the API and the
library itself.
(The ABI&#8201;&#8212;&#8201;application binary interface&#8201;&#8212;&#8201;between the
library and the application is controlled in a similar, but different
manner depending upon the link options and how the library is built.)</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_return_values">RETURN VALUES</h2>
<div class="sectionbody">
<div class="paragraph">
<p>Null-terminated string containing the library version number.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_errors">ERRORS</h2>
<div class="sectionbody">
<div class="paragraph">
<p>None.</p>
</div>
</div>
</div>
<div class="sect1">
<h2 id="_see_also">SEE ALSO</h2>
<div class="sectionbody">
<div class="paragraph text-left">
<p><a href="libnng.3.html">libnng(3)</a>,
<a href="nng.7.html">nng(7)</a></p>
</div>
</div>
</div>