cessor">#define FFTW_NO_VRECURSE (1U &lt;&lt; 16)</span></div><div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;<span class="preprocessor">#define FFTW_NO_SIMD (1U &lt;&lt; 17)</span></div><div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160;<span class="preprocessor">#define FFTW_NO_SLOW (1U &lt;&lt; 18)</span></div><div class="line"><a name="l00408"></a><span class="lineno">  408</span>&#160;<span class="preprocessor">#define FFTW_NO_FIXED_RADIX_LARGE_N