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<a name="abs_002d_002d_002dinteger-absolute-value-_0028magnitude_0029"></a>
<h3 class="section">2.4 <code>abs</code>&mdash;integer absolute value (magnitude)</h3>
<a name="index-abs"></a>
<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">#include &lt;stdlib.h&gt;
int abs(int <var>i</var>);

</pre></div>
<p><strong>Description</strong><br>
<code>abs</code> returns
the absolute value of <var>i</var> (also called the magnitude
of <var>i</var>).  That is, if <var>i</var> is negative, the result is the opposite
of <var>i</var>, but if <var>i</var> is nonnegative the result is <var>i</var>.
</p>
<p>The similar function <code>labs</code> uses and returns <code>long</code> rather than <code>int</code> values.
</p>
<br>
<p><strong>Returns</strong><br>
The result is a nonnegative integer.
</p>
<br>
<p><strong>Portability</strong><br>
<code>abs</code> is ANSI.
</p>
<p>No supporting OS subroutines are required.
</p>
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