local_n1, ptrdiff_t *local_1_start);
</pre>
   <p><a name="index-fftw_005fmpi_005flocal_005fsize_005f2d_005ftransposed-405"></a>
Again, the return value is the local storage to allocate, which in
this case is the number of <em>real</em> (<code>double</code>) values rather
than complex numbers as in the previous examples.

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