
</li></ul>

<a name="Limiting-planning-time"></a>
<h4 class="subsubheading">Limiting planning time</h4>

<div class="example">
<pre class="example">extern void fftw_set_timelimit(double seconds);
</pre></div>
<a name="index-fftw_005fset_005ftimelimit"></a>

<p>This function instructs FFTW to spend at most <code>seconds</code> seconds
(approximately) in the planner.  If <code>seconds ==
FFTW_NO_TIMELIMIT</code> (the default value, which is negative), then
planning time is unbounded.  Otherwise, FFTW plans w