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fabs [C++ Reference]
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<h2><a name="fabs" id="fabs">fabs</a></h2>
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<p>
Syntax:
</p>
<pre class="c code c++" style="font-family:monospace;"> <span class="co2">#include <cmath></span>
<span class="kw4">double</span> fabs<span class="br0">(</span> <span class="kw4">double</span> arg <span class="br0">)</span><span class="sy0">;</span></pre>
<p>
The function fabs() returns the absolute value of arg.
</p>
<p>
C++ also provides the following overloaded forms:
</p>
<pre class="c code c++" style="font-family:monospace;"> <span class="co2">#include <cmath></span>
<span class="kw4">float</span> fabs<span class="br0">(</span> <span class="kw4">float</span> arg <span class="br0">)</span><span class="sy0">;</span> <span class="co1">// same as fabsf() in C99</span>
<span class="kw4">long</span> <span class="kw4">double</span> fabs<span class="br0">(</span> <span class="kw4">long</span> <span class="kw4">double</span> arg <span class="br0">)</span><span class="sy0">;</span> <span class="co1">// same as fabsl() in C99</span></pre>
<p>
You can also use abs() instead of fabs() in C++, as it contains overloaded versions for it.
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Related Topics: <a href="../../c/math/abs.html" class="wikilink1" title="c:math:abs">abs</a>, <a href="../../c/math/fmod.html" class="wikilink1" title="c:math:fmod">fmod</a>, <a href="../../c/math/labs.html" class="wikilink1" title="c:math:labs">labs</a>
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