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<a name="feholdexcept_002d_002d_002dsave-current-floating_002dpoint-environment"></a>
<h3 class="section">3.5 <code>feholdexcept</code>&mdash;save current floating-point environment</h3>
<a name="index-feholdexcept"></a>
<p><strong>Synopsis</strong>
</p><div class="example">
<pre class="example">#include &lt;fenv.h&gt;
int feholdexcept(fenv_t *<var>envp</var>);

Link with -lm.

</pre></div>
<p><strong>Description</strong><br>
This method attempts to save the current floating-point environment
in the fenv_t instance pointed to by <var>envp</var>, clear the floating
point status flags, and then, if supported by the target architecture,
install a &quot;non-stop&quot; (e.g. continue on floating point exceptions) mode
for all floating-point exceptions.
</p>
<br>
<p><strong>Returns</strong><br>
This method will return zero if the non-stop floating-point exception
handler was installed. Otherwise, a non-zero value is returned.
</p>
<br>
<p><strong>Portability</strong><br>
ANSI C requires <code>feholdexcept</code>.
</p>
<p>Not all Newlib targets have a working implementation.  Refer to
the file <code>sys/fenv.h</code> to see the status for your target.
</p>
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